Entries |
Document | Title | Date |
20080198296 | LIQUID CRYSTAL DISPLAY DEVICE, BACKLIGHT MODULE AND FABRICATION METHOD THEREOF - The invention provides a liquid crystal display device, backlight module and method for fabricating the same. The backlight module comprises a frame; a plurality of light-emitting diodes disposed on a bottom surface of the frame; and a mixing light plate disposed over the light-emitting diodes. The backlight module further comprises a diffusion plate disposed on the mixing light plate and a reflective layer formed on an inner sidewall and the bottom surface of the frame. The backlight module has a high luminous uniformity and efficiency by the mixing light plate. | 08-21-2008 |
20080211989 | Backlight Assembly and Display Apparatus Having the Same - A backlight assembly includes: a light emitting unit having a plurality of unit LEDs formed in a matrix, each of the unit LEDs having a red LED, a green LED, and a blue LED; a plurality of bottom reflectors disposed under the respective unit LEDs; and a plurality of side reflectors disposed around the respective unit LEDs. | 09-04-2008 |
20080211990 | SURFACE LIGHT SOURCE DEVICE AND DISPLAY APPARATUS - A liquid crystal display apparatus is provided which has two or more options in selection of the range of viewing angles. A surface light source device according to the invention has a main surface from which light is emitted, and includes a plurality of light guide plates corresponding to a plurality of regions obtained by dividing the main surface in parallel; an optical film provided on the exit surface side of the light guide plates; and a light driver that controls the turning on and off of the plurality of light guide plates. The optical film includes a light-guide slit film which transmits light that is emitted from the light guide plates and that is within a certain range of angles. | 09-04-2008 |
20080218659 | WHITE SURFACE LIGHT SOURCE AND LIQUID CRYSTAL DISPLAY - A white surface light source comprising a light diffuser plate and a light source provided on the back side of the light diffuser plate, wherein the light source comprises at lease one LED element which emits lights including a red color, and the light diffuser plate comprises a transparent material and light diffusing particles dispersed in the transparent material, and wherein an absolute value An of a refractive index difference between the transparent material and the light diffusing particles, and a 50% cumulative particle diameter D | 09-11-2008 |
20080225202 | OPTICAL SHEET AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - Disclosed is an optical sheet and an LCD device comprising the optical sheet. The optical sheet comprises a base film; and a prism part disposed on one surface of the base film, and comprising a plurality of peaks and a plurality of valleys; wherein the prism part comprises a plurality of diffusion particles, and the prism part is arranged along a longitudinal direction and a height of each peak varies as the peak goes along the longitudinal direction. | 09-18-2008 |
20080239201 | LIGHT-SCATTERING FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - A light-scattering film includes a support; and a layer including a light-scattering particle and a light-transparent resin, wherein the light-scattering film satisfies following formulae (1) to (3) at the same time: | 10-02-2008 |
20080239202 | Backlight unit and liquid crystal display device having the same - A backlight unit for slimmed structure and exhibiting uniform brightness through the improvement of its luminance efficiency and the quality in appearance of which is improved by the removal of bright lines, and a liquid crystal display device having the same are disclosed. The backlight unit includes a plurality of light emitting lamps disposed above a cover bottom such that the light emitting lamps are arranged at regular intervals, a diffusion plate disposed above the light emitting lamps, the diffusion plate including a substrate, a light control part formed on the bottom surface of the substrate corresponding to the light emitting lamps, and lens parts mounted on the top surface of the substrate, and an optical film disposed above the diffusion plate. | 10-02-2008 |
20080252815 | Polarization structure and liquid crystal display device having the same - A polarization structure and a liquid crystal display device having the same are provided. The polarization structure includes a polarizing film, a phase compensation film layer, and a diffusing adhesive layer. The phase compensation film layer is disposed on the polarizing film, and the diffusing adhesive layer is disposed on one side of the phase compensation film layer opposite to the polarizing film. The diffusing adhesive layer has an adhesive material and a plurality of diffusing particles added into the adhesive material. | 10-16-2008 |
20080252816 | LIQUID CRYSTAL DISPLAY DEVICE HAVING IMPROVED VIEWING ANGLE AND BRIGHTNESS - A liquid crystal display with an improved viewing angle and brightness is provided. The liquid crystal display includes a light source unit and a polarized light guide plate having an incident surface onto which unpolarized light from the light source unit is incident. The polarized light guide plate polarizes, collimates, and out-couples the incident light. The liquid crystal display also includes a liquid crystal panel which modulates the light out-coupled and illuminated from the polarized light guide plate to form images, and a diffusion layer which diffuses the light modulated in the liquid crystal panel. | 10-16-2008 |
20080252817 | Backlight module and liquid crystal display having same - A liquid crystal display ( | 10-16-2008 |
20080259243 | OPTICAL SHEET STACK AND LIQUID CRYSTAL DISPLAY DEVICE - There is provided an optical sheet stack which includes a first optical sheet having a large number of irregularities consecutively arranged on one surface thereof, and a second optical sheet stacked thereon. In the optical sheet stack, the second optical sheet has, on a bonding surface thereof, an adhesive layer bonded with apexes of the irregularities, and while assuming pitch of arrangement of the irregularities as P, and width of bonding of each apex of the irregularities bonded to the adhesive layer as Pw, the relation of 010-23-2008 | |
20080259244 | LIGHT SOURCE APPARATUS AND DISPLAY APPARATUS HAVING THE SAME - The present invention provides a light source apparatus less costly, capable of being reduced in size and thickness and superior in light combining performance and a display apparatus having the light source apparatus. The light source apparatus has a plurality of light sources different in emission wavelength from each other and a prism sheet having a plurality of mutually parallel fine elongated prisms on at least one surface thereof. Lights from the light sources enter the prism sheet through a light entrance surface of the prism sheet at a predetermined angle and output from an exit surface thereof as color-mixed exiting light. A bandpass mirror is disposed between each light source and the prism sheet to transmit light in a wavelength region emitted from the associated light source and to reflect light in the other wavelength regions. | 10-23-2008 |
20080259245 | BACKLIT DISPLAY - The present invention relates to the field of the backlighting of displays. A backlit display unit comprises a display medium for displaying visible information to a user of the unit, an LED light source for backlighting the display medium, a light diffuser for diffusing light which is incident on the light diffuser, and a printed circuit board carrier which supports the light source. The light diffuser is spaced apart from the display medium and is in an intermediate orientation with respect to the light diffuser and the display medium. The carrier has opposite first and second surfaces, the first surface being oriented generally towards the display medium and the second surface being oriented generally towards the light diffuser. The surfaces are bounded by one or more edges. The arrangement is such that illumination from the light source is directed away from the display medium to be incident upon the light diffuser. This incident light is then diffused by the light diffuser past the edges of the printed circuit board back towards the display medium to provide backlight illumination for the display medium. | 10-23-2008 |
20080259246 | MATRIX-TYPE LIQUID CRYSTAL DISPLAY DEVICE - A matrix-type liquid crystal display device, includes: a liquid crystal panel including: a pair of substrates disposed to face each other with at least one of the pair of substrates having an electrode; a liquid crystal layer interposed between the pair of substrates; a pair of polarizing plates disposed to sandwich the liquid crystal layer, each having a polarizing film and a protective film provided directly or indirectly on at least one surface of the polarizing film; and an optically compensatory film disposed in at least one of spaces between the liquid crystal layer and the pair of polarizing films; a backlight comprising a light source; a first optical member having a light-condensing property; and a second optical member having a surface scattering function. | 10-23-2008 |
20080259247 | LASER BACKLIGHTING FOR DISPLAYS - Displays such as LCD panels are illuminated using frequency-doubled vertical extended cavity surface emitting lasers (VECSELs) as efficient light sources. Visible light from the VECSELs are directed to an illuminating panel using optical fibers and/or optical gratings to provide substantially uniform illumination of the illuminating panel. Visible light from the illuminating panel, which can be provided at a particular number of primary wavelengths by the VECSELs, is then used to illuminate the display. | 10-23-2008 |
20080266488 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a light source, at least one optical member having a periodic structure of 75 μm or more, pixels disposed in a matrix state, and at least one optical member with light scattering properties. | 10-30-2008 |
20080273143 | PASSIVE OPTICAL DEVICE AND LIGHT SOURCE MODULE - A passive optical device includes a first substrate, a second substrate, a stabilized liquid crystal (LC) layer and a surface micro-structure layer. The stabilized LC layer is disposed between the first substrate and the second substrate and has a polarization beam-splitting function via an aligning direction of liquid crystal molecules. The surface micro-structure layer is disposed on an exterior surface of at least one of the first substrate and the second substrate and used to produce a light-collecting effect. | 11-06-2008 |
20080273144 | DIFFUSING POLARIZER AND BACKLIGHT MODULE USING THE SAME - A diffusing polarizer including a substrate and a microstructure layer is provided. The micro-structure layer includes a solid phase liquid crystal having a birefringence feature. The diffusing polarizer is capable of both polarizing and diffusing incident light beams. A backlight module using the diffusing polarizer is also provided. | 11-06-2008 |
20080284942 | Backlight Device and Transmission Type Liquid Crystal Display Apparatus - A transmission liquid crystal display device using a backlight device for supplying display light emitted from a large number of light emission diodes to a transmission display panel. The transmission liquid crystal display device has an optical sheet block ( | 11-20-2008 |
20080284943 | Multifunctional optical sheet and liquid crystal display device including the same - A multifunctional optical sheet for a liquid crystal display device includes a substrate diffusing incident light; a light-concentrating layer on the substrate and including a plurality of patterns that arranged to form alternating peaks and valleys; and reflection patterns between the substrate and the light-concentrating layer corresponding to the valleys of the light concentrating layer. | 11-20-2008 |
20080284944 | Plane light source and LCD backlight unit having the same - There are provided a plane light source and an LCD backlight unit having the same. A plane light source having a plurality of light emitting devices arranged in a light emitting device matrix having rows and columns at a substrate according to an aspect of the invention includes a first matrix having a plurality of light emitting devices arranged in rows and columns; and a second matrix having a plurality of light emitting devices arranged in rows and columns, each of the light emitting devices located within a rectangle formed by four neighboring light emitting devices included in the first matrix, wherein a pitch S between one light emitting device included in the light emitting device matrix and another light emitting device most adjacent to the one light emitting device satisfies the following equation to obtain uniform luminance distribution at a position distant from a light emitting surface of the light emitting device by an optical length l, | 11-20-2008 |
20080291362 | Diffuser for Light From Light Source Array and Displays Incorporating Same - An optical structure placeable between a backlight array of point light sources and a planar display. The structure distributes light emitted by the point light sources to uniformly illuminate the plane of the display, without introducing significant viewing parallax. The emitted light is partially collimated within a preferred angular viewing range, maximizing the display's luminance when viewed from the normal direction. The structure is highly reflective, such that a substantial portion of any non-emitted light rays are internally reflected by the structure, increasing the likelihood that those rays will be subsequently emitted by the structure. | 11-27-2008 |
20080291363 | ELECTRO-OPTIC DEVICE, ELECTRONIC APPARATUS AND ILLUMINATION DEVICE - An electro-optic device includes a light source, a light guide panel configured to output light beams emitted from the light source through a light exit plane; a display panel illuminated by the light beams outputted from the light exit plane of the light guide panel passing therethrough; a prism sheet provided between the light guide panel and the display panel and formed with prisms having a triangular cross-section on a surface on the side of the display panel; and a light diffusing member provided between the light guide panel and the prism sheet. The prisms each having a ridge line extending substantially vertically to the direction of emission of the light beam emitted from the light source, and an apex angle is set to a range from 60° to 70°. | 11-27-2008 |
20080291364 | LIGHT EMISSION DEVICE AND DISPLAY DEVICE USING THE LIGHT EMISSION DEVICE AS A LIGHT SOURCE - A light emission device including: a light emission panel including at least two emissive regions spaced apart from each other and a non-emissive region between the emissive regions; and a light diffuser located in front of the light emission panel, the light diffuser including at least two first diffusion parts corresponding to the emissive regions and a second diffusion part corresponding to the non-emissive region, wherein the second diffusion part has diffusion transmittance that is greater than diffusion transmittance of the first diffusion parts. | 11-27-2008 |
20080297691 | BACK LIGHT UNIT AND LIQUID CRYSTAL DISPLAY WITH THE SAME - A back light unit for a liquid crystal display panel including a light source, a light guide plate for receiving light from the light source, a lower surface of the light guide plate coated with a reflection sheet, wherein the reflection sheet may be metal, a diffuser for diffusing the light from the light guide plate, and an optical sheet for providing the light from the diffuser to the liquid crystal display panel. | 12-04-2008 |
20080297692 | Image Display Apparatus and Backlight Unit to Be Used Therein - An image display apparatus includes a backlight unit including a plurality of light sources arranged in a flat, a reflecting portion for reflecting light from the light sources, a diffuser for diffusing the light from the light sources and the light reflected from the reflecting portion, and a chassis for maintaining or supporting the light sources, the reflecting portion and the diffuser; and a liquid crystal display unit which receives the light diffused by the diffuser of the backlight unit. Concave portions are formed in the chassis at positions corresponding to electrodes of the plurality of light sources, positions corresponding to light-emitting portions of the light sources are arranged in a flat, and a circuit for driving the liquid crystal display unit is provided on a rear surface of a planar portion of the chassis. Accordingly, it is possible to realize a thin lightweight backlight with high luminance and high luminance uniformity. | 12-04-2008 |
20080303976 | Liquid Crystal Display Device - A liquid crystal display panel includes a TFT substrate and a color filter substrate respectively formed of a glass substrate. By housing the liquid crystal display panel in the inside of a frame having a curved surface, a predetermined curved surface is imparted to a display screen. Using a direct backlight having a plurality of fluorescent lamps, distances between the respective fluorescent lamps and the liquid crystal display panel are set to a fixed value. A diffusion plate has a curved surface substantially equal to the display screen. By mounting respective optical sheets on the diffusion plate, predetermined curved surfaces are imparted to the respective optical sheets. Due to such constitution, it is possible to realize a liquid crystal display device having a curved surface without using a complicated optical system. | 12-11-2008 |
20080303977 | Liquid Crystal Display Device - An object of the present invention is to provide a liquid-crystal display device which includes a diffuser board that does not produce striped mura on the surface of a liquid crystal panel even if point light sources are used as light sources of a backlight. | 12-11-2008 |
20080303978 | BACKLIGHT ASSEMBLY, LIQUID CRYSTAL DISPLAY APPARATUS HAVING THE SAME AND METHOD OF MANUFACTURING LAMP-FIXING MEMBER - A backlight assembly includes a receiving container, lamps, a diffusion plate and a lamp-fixing member. The receiving container includes a bottom plate and sidewalls together providing a receiving space. The lamps are arranged substantially parallel to each other on the bottom plate. The diffusion plate is disposed over the lamps. The lamp-fixing member includes a body portion extending substantially perpendicular to the lamps, a buffer protruding upwardly from the body portion, a diffusion plate supporting portion protruding from the buffer to support the diffusion plate and a lamp-fixing portion formed at the body portion to fix the lamps. Therefore, the buffer having elasticity is formed at an area at which the diffusion plate supporting portion is formed, so that rubbing between the diffusion plate and the diffusion plate supporting portion may be reduced. | 12-11-2008 |
20080309846 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME - A backlight unit includes at least one light emitting diode; and a diffusion plate over the at least one light emitting diode and including at least one opening portion corresponding to the at least one light emitting diode. | 12-18-2008 |
20080309847 | LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - LEDs (light sources) are disposed in a row in the width direction of a light-guiding plate near the edge surface of the light-guiding plate. In the edge surface of the light-guiding plate, diffractive optical elements (DOEs) are disposed to face the LEDs, respectively. These DOEs are constituted of binary concave and convex patterns, and the diffusion angle of the DOEs disposed near the center is set smaller than that of the other DOEs disposed near the edge. | 12-18-2008 |
20080316392 | Liquid Crystal Display, Optical Sheet Manufacturing Method, and Optical Sheet - A liquid crystal display, optical sheet manufacturing method, and an optical sheet are provided. The occurrence of moiré is prevented while suppressing a reduction in front luminance. The liquid crystal display includes: a liquid crystal display panel; a light source arranged on a back surface side of the liquid crystal display panel; an optical sheet with a light-condensing property arranged between the liquid crystal display panel and the light source, the optical sheet having a number of irregularities arranged continuously on a principal surface of the optical sheet; and a diffuser sheet arranged between the liquid crystal display panel and the optical sheet. The liquid crystal display is constructed so that when an arrangement pitch of the irregularities of the optical sheet is P [μm], a haze value of the diffuser sheet is H [%], a total light transmittance of the diffuser sheet is Tt [%], and a pixel pitch of the liquid crystal display panel is Pp [μm], the following relationship is satisfied: (H/Tt)·(Pp/P)≧1.6. | 12-25-2008 |
20080316393 | LIQUID CRYSTAL MODULE - A liquid crystal display device includes a frame, a linear light source, a liquid crystal cell, a light diffusing plate and a positioning mechanism. The light diffusing plate is disposed between the frame and the liquid crystal cell and has an optical processing region formed in a first direction from a first side portion of the light diffusing plate to a second side portion of the light diffusing plate. The positioning mechanism positions the light diffusing plate with respect to the frame with a middle portion of at least one of the first and second side portions of the light diffusing plate in a second direction perpendicular to the first direction being used as a reference to align the optical processing region of the light diffusing plate with the linear light source in the second direction. | 12-25-2008 |
20080316394 | Backlight module, lamp hoder and liquid crystal display using same - An exemplary backlight module includes a diffuser plate, a bottom plate facing the diffuser plate, lamps arranged between the diffuser plate and the bottom plate, and holders positioned between the diffuser plate and the bottom plate. Each holder includes a fixing part for holding the corresponding lamp, and two supporting parts extending from the fixing part. The supporting parts are configured for supporting the diffuser plate. | 12-25-2008 |
20090002599 | Backlight module and liquid crystal display using same - An exemplary backlight module includes a light guide plate ( | 01-01-2009 |
20090009686 | Surface Emitting Device and Liquid Crystal Display - To provide a surface emitting device and a liquid crystal display in which the number of divided main light-source images is increased to enhance the uniformity of luminance distribution. A surface emitting device | 01-08-2009 |
20090009687 | Anisotropic Diffusion Sheet - The present invention provides an anistropic diffusion sheet, which comprises: an isotropic diffusion layer for isotropically diffusing the light incident from the light source portion by internal light scattering; and a plurality of reflectors which is disposed at an interval on the upper surface of the isotropic diffusion layer, so as to reflect the light isotropically diffused by the isotropic diffusion layer t the display panel, wherein the , emitted from the light source portion and then becomes incident to the isotropic diffusion layer, is isotropically diffused through the isotropic diffusion layer, the light isotropically illuminated by the isoptropic diffusion layer is the reflected by the plurality of reflector to be anisotropically diffuse, and this anisotropically diffused light becomes incident to the liquid crystal display panel. | 01-08-2009 |
20090015752 | Method for illuminating liquid crystal display device, a back-light assembly for performing the same, and a liquid crystal display device using the same - A method for illuminating a liquid crystal display device, a back-light assembly for performing the same and a liquid crystal display device using the same can improve the front luminance and production yield. Lights from a lamp is incident to a LCD panel side, which are then primarily diffused for a uniformity of the luminous flux of the incident lights. The luminous flux of the primarily diffused lights is condensed with respect to a first orientation component on a plane in parallel with the LCD panel, and then partially and secondarily diffused for extending a view angle of pixels of the LCD panel. After the luminous flux of the secondarily diffused lights is condensed with respect to a second orientation component perpendicular to the first orientation on the parallel plane, the condensed lights are illuminated onto the LCD panel. A diffusion sheet for secondarily diffusing the luminous flux and a condensing sheet for condensing the second orientation component are formed by a single sheet to reduce the manufacturing process of the liquid crystal display device. Also, a defect produced from respective sheets is minimized to enhance the yield. | 01-15-2009 |
20090015753 | LIGHT GUIDE PLACE AND LIGHT-DIFFUSING STRUCTURE THEREOF - A light guide plate that is divided into an effective section capable of providing uniform surface illumination and a transitional section between the effective section and the point light source includes a light-receiving surface, a light-emitting surface, a light-reflecting surface, and a plurality of light-diffusing structures. The light-diffusing structures are spread on the transitional section, and each light-diffusing structure is in the shape of a part elliptic cylinder having a long axis and a short axis and the front surface of the light-diffusing structure facing the point light source is a part elliptic cylindrical surface. | 01-15-2009 |
20090021667 | Resin Sheet, Direct Backlight Unit, and Direct Backlight Type Liquid Crystal Display - There is provided a resin sheet having a thickness of 1 to 5 mm, | 01-22-2009 |
20090027590 | White film and backlight using same - A white film including polymer film wherein both the thermal shrinkage rate in the longitudinal direction and that in the transverse direction of the film are not less than −0.2% and not more than 0.5% at 90° C., and a backlight for liquid crystal displays using such a white film. Since the white film hardly suffers from undulation or rise in its end portions, it is most suitable as a reflection film for backlights of liquid crystal displays. Since a backlight for liquid crystal displays using this white film can be used for a long time, it is applicable to liquid crystal displays of various electrical/electronic devices. | 01-29-2009 |
20090027591 | COLLIMATING LIGHT GUIDE PLATE, DIFFUSING UNIT, AND DISPLAY APPARATUS EMPLOYING THE SAME - A diffusing unit includes: a polarizing plate; and a diffusing layer integrally provided on a surface of the polarizing plate without an air layer therebetween. By using a display apparatus employing a collimating light guide plate and the diffusing unit, the optical performances such as resolution and viewing angle can be improved. Also, because gray scale inversion and color shifts can be reduced or eliminated using collimated light, image quality of the display apparatus can be improved. | 01-29-2009 |
20090027592 | Display device, manufacturing method of display device, and manufacturing apparatus for the same - A display device includes a first display device, a second display device bonded to the first display device, and an adhesive provided between the first display device and the second display device to fix the first display device on the second display device, and including a light diffusion particle. | 01-29-2009 |
20090027593 | Liquid crystal display device having a prism sheet between first and second light diffusion - In a liquid crystal display device capable of performing as both a transmissive display and a reflective display using a transmissive type liquid crystal display panel, the influence attributed to a shade as viewed from the oblique direction can be reduced so that favorable visibility can be ensured. In a liquid crystal display device including a transmissive type liquid crystal display panel which sandwiches a liquid crystal layer between a pair of substrates and a backlight which is arranged at a back face of the liquid crystal display panel and has a light source and a reflector, wherein the device is capable of performing as a transmissive display using light from the light source and as a reflective display using external light incident from a front face side of the liquid crystal display panel by reflecting the external light on the reflector, at least two or more light diffusion layers are arranged between the back-face-side substrate out of the pair of substrates and the reflector of the backlight. | 01-29-2009 |
20090027594 | DISPLAY PANEL AND DISPLAY DEVICE HAVING THE SAME - A display panel includes a liquid crystal layer, an array substrate and a color filter substrate. The array substrate has a plurality of data lines, a plurality of gate lines and a plurality of pixel regions. The electrode for a storage capacitor is formed on each of the pixel regions. The color filter substrate is combined with the array substrate to receive the liquid crystal layer therebetween. The color filter substrate includes a first region where a color filter is formed and a second region where an opening is formed. The opening corresponds to the electrode for the storage capacitor. Thus, light reflected by the electrode for the storage capacitor exits the display panel through the opening, thereby enhancing an optical reflectivity of each pixel region. | 01-29-2009 |
20090033829 | PRISM SHEET AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - An exemplary prism sheet according to a preferred embodiment includes a first surface and a second surface opposite to the first surface. A plurality of micro-protrusions are formed on the first surface. A plurality of curved elongated V-shaped protrusions are formed on the second surface. A liquid crystal display device using the prism sheet is also provided. | 02-05-2009 |
20090033830 | OPTICAL SHEET - An optical sheet includes a substrate and a plurality of convex lens structures. The substrate has a first surface and a second surface, which are disposed opposite to each other. The convex lens structures are disposed on the second surface, and each of the convex lens structure has a cambered surface. The cambered surface fits a curve surface equation of Ax | 02-05-2009 |
20090033831 | Prism sheet with curved surface and liquid crystal display device using same - An exemplary prism sheet includes a base including an upper surface and a plurality of lenses disposed on the upper surface. The upper surface is a wavy surface. A liquid crystal display device using the prism sheet is also provided. | 02-05-2009 |
20090040424 | OPTICAL PLATE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - An exemplary optical plate includes a transparent layer and a light diffusion layer. The transparent layer and the light diffusion layer are integrally formed. The transparent layer includes a light input interface, a light output surface opposite to the light input interface, and a plurality of curved, elongated, V-shaped micro-protrusions are formed on the light output surface. The light diffusion layer is located adjacent to the light input interface of the transparent layer. A plurality of V-shaped micro-protrusions are formed on an outer surface of the light diffusion layer. A liquid crystal display device using the optical plate is also provided. | 02-12-2009 |
20090040425 | PRISM SHEET AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - An exemplary prism sheet ( | 02-12-2009 |
20090046219 | Optical diffuser - An improved optical diffuser for use in a multi-component display (MCD), and also to a method of manufacturing the same, is disclosed. Embodiments provide an optical diffuser film which may be manufactured with fewer manual operations, at a lower cost, and in larger volume than conventional optical diffusers. The optical diffuser film may include a flexible polymer substrate coupled to an optical diffuser material with a plurality of features for diffusing light. The optical diffuser film may be stored, transported, or otherwise handled more easily and with less damage than conventional optical diffusers. Additionally, the optical diffuser film may be coupled to a rigid substrate to reduce distortion of the optical diffuser, thereby providing improved optical performance. | 02-19-2009 |
20090051850 | PRISM SHEET AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - An exemplary prism sheet includes a main body having a surface. The surface defines a plurality of first V-shaped micro-protrusions and second V-shaped micro-protrusions thereon. Each of the first V-shaped micro-protrusions extends along a first curved direction. Each of the second V-shaped micro-protrusions extends along a second curved direction. The first V-shaped micro-protrusions intersect with the second V-shaped micro-protrusions. The present prism sheet and the liquid crystal display device using the same can efficiently decrease moire pattern interference between the prism sheet and the pixel pitch of LCD panel. | 02-26-2009 |
20090051851 | FILM-SHAPED LIGHTGUIDE PLATE UNIT, PLANAR LIGHT UNIT, DISPLAY APPARATUS AND ELECTRONIC DEVICE - A film-shaped lightguide plate unit enables reductions in thickness and weight. The film-shaped lightguide plate unit ( | 02-26-2009 |
20090059121 | Illumination Unit and Display Unit Incorporating the Same - An illumination device has at least one fluorescent tube, a lower frame supporting the fluorescent tube, a light diffusion plate which opposes the lower frame with the fluorescent tube being interposed therebetween for forward diffusion of output light of the fluorescent tube, a reflection sheet disposed along the fluorescent tube side of the lower frame for reflecting the fluorescent light toward the light diffuser plate, and an upside reflector covering an electrode of the fluorescent tube for reflecting the light toward the light diffuser. When letting a direction along a length of the fluorescent tube be a horizontal direction, a distance between the fluorescent tube and the reflection sheet at at least one of nearby portions of right and left ends of the illuminator is greater than such distance at a central portion thereof. A liquid crystal display (LCD) apparatus using the illuminator is also disclosed. | 03-05-2009 |
20090059122 | SURFACE EMITTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - A surface emitting device includes a plurality of light sources disposed on an identical plane, an optical element having translucent properties and having formed thereon a luminance distribution-forming layer for suppressing luminance variations of light emitted from the plurality of light sources. A reflective surface is provided. for reflecting a light emitted from the plurality of light sources, the reflective surface being disposed opposite to the optical element by sandwiching the plurality of light sources with an air layer in between the reflective surface and the optical element. A diffuser for diffusing the light emitted from the plurality of light sources is disposed opposite to the plurality of light sources by sandwiching the optical element. | 03-05-2009 |
20090059123 | PLANE LIGHT SOURCE AND LCD BACKLIGHT UNIT HAVING THE SAME - There are provided a plane light source and an LCD backlight unit having the same. A plane light source including light emitting device matrixes each having a plurality of light emitting devices arranged in rows and columns on a substrate according to an aspect of the invention includes: a first matrix having a plurality of light emitting devices arranged in rows and columns; and a second matrix having a plurality of light emitting devices arranged in rows and columns, the light emitting devices each located within a rectangle formed by four adjacent light emitting devices included in the first matrix, and forming angles θ satisfying the condition of 45°≦θ≦55° therebetween on the basis of a horizontal direction, wherein among pitches between one light emitting devices included in the light emitting device matrixes and another lighting light emitting device adjacent to the light emitting device, a pitch P | 03-05-2009 |
20090059124 | Backlight unit and liquid crystal display device including the same - A backlight unit for a liquid crystal display device includes a reflection sheet, at least one lamp arranged over the reflection sheet, a diffuser plate over the at least one lamp, the diffuser plate including a base plate of a transparent material, a diffusion layer at a first surface of the base plate facing the at least one lamp, and a light concentrating layer at a second surface of the base plate opposite to the first surface and formed of a same material as the base plate, and optical sheets over the diffuser plate. | 03-05-2009 |
20090059125 | Image display apparatus - An image display apparatus includes: a plurality of light sources for emitting light; an optical uniformizing portion for uniformizing light emitted from the plurality of light sources; a total reflection portion disposed above the plurality of light sources, the total reflection portion totally reflecting light from the optical uniformizing portion; an optical guide portion for guiding light totally reflected at the total reflection portion; an optical diffusion unit for diffusing light from the total reflection portion and outputting the diffused light; an optical parallelizing unit for parallelizing light from the optical diffusion unit; and a liquid crystal panel for modulating light from the optical parallelizing unit into an optical image in accordance with an image signal and displaying the optical image. | 03-05-2009 |
20090059126 | Display device - A panel unit is formed by sandwiching a liquid crystal display panel and a diffusion sheet between a front surface plate having a curved plane and a back surface plate having a curved plane. A light source unit is arranged on a back surface of the panel unit. The diffusion sheet is formed in to an outward convex shape in the same manner as the liquid crystal display panel and hence, due to a lens action of the diffusion sheet, light from the light source unit is collected in the direction toward the center of a screen. Accordingly, it is possible to suppress a phenomenon that brightness in a periphery of the screen is reduced when the screen is viewed from a front side. | 03-05-2009 |
20090066880 | LIQUID CRYSTAL DISPLAY DEVICE - An object of the present invention is to provide a simply configured liquid crystal display device capable of providing a high front luminance when light obliquely enters a micro lens array. The liquid crystal display device comprises: a pair of polarizing plates which sandwich a pair of substrates; a liquid crystal layer sandwiched by the pair of substrates; transmission openings formed in a pixel to limit the quantity of light which penetrates the liquid crystal layer; condensing elements formed on the side of one of the substrates, opposite to the side on which the liquid crystal layer is disposed, to condense light to the transmission openings; and a planar light-emitting element which emits light to be applied to the condensing elements; wherein the light to be emitted from the planar light-emitting element forms a certain angle with respect to its perpendicular when emitted; and wherein the position of the transmission opening is relatively shifted with respect to that of the condensing element so as to increase the quantity of light which penetrates the transmission opening, in association with the light-emitting direction of the planar light-emitting element. | 03-12-2009 |
20090073344 | OPTICAL SHEET, BACKLIGHT UNIT AND CRYSTAL DISPLAY DEVICE HAVING THE SAME - Provided are an optical sheet, a backlight unit and an LCD device having the same. The backlight unit includes a first layer, a second layer, and a refractive pattern. The first layer has a larger refractivity than an air layer, and the second layer has a larger refractivity than the first layer. The refractive pattern is disposed at a boundary surface between the first layer and the second layer and has ridges and furrows that change a traveling path of light. The optical sheet refracts light at least three times to condense the light in a direction perpendicular to a light-exiting surface. | 03-19-2009 |
20090079906 | PRISM SHEET AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - An exemplary prism sheet according to a preferred embodiment includes a transparent main body. The transparent main body includes a light input surface and a light emitting surface opposite to the light input surface. A plurality of curved elongated V-shaped protrusions are formed on the light emitting surface. Each of the curved elongated V-shaped protrusions extends along a circular arc. The circular arcs have a same curvature, and centers of the circular arcs are aligned apart and in a straight line. A liquid crystal display device using the prism sheet is also provided. | 03-26-2009 |
20090091686 | Liquid Crystal Display Device - A liquid crystal display device includes a first substrate, a second substrate arranged on a viewer side, and a liquid crystal between the first and second substrates. A light guide plate is arranged on a back surface of the first substrate, a polarization plate is arranged between the first substrate and the light guide plate, and a prism sheet is arranged between the light guide plate and the polarization plate with prisms being provided on a light guide plate side thereof. A diffusion layer is arranged between the prism sheet and the polarization plate, and a light control sheet is arranged between the diffusion layer and the polarization plate. The light control sheet, which is a λ/2 retardation plate, rotates a polarization of light emitted from the diffusion layer, is arranged in contact with the polarization plate. | 04-09-2009 |
20090096955 | Liquid Crystal Display Appliance and Lighting System - The present invention provides a liquid crystal display appliance in which portions of a liquid crystal display panel over luminescent lamps are not seen extraordinarily brighter and brightness of the liquid crystal display panel does not lower significantly at portions in the vicinity of the vertical direction edge of the liquid crystal display panel if a lighting system becomes thinner than 20 mm. This liquid crystal display appliance comprises a lighting system, in which a distance D between light reflector sheet | 04-16-2009 |
20090096956 | LIGHT SOURCE APPARATUS - A light source apparatus permits an angular range of illumination light to be changed, wherein the apparatus can be made thin. A related display apparatus permits a visible angular range to be changed using the light source apparatus. The display apparatus can be mounted in a terminal device, and an optical member and an optical unit can be incorporated in the light source apparatus. The light source apparatus is provided with a light guide plate with a conical sheet. Two light sources are provided on side surfaces of the light guide plate. Two inclined surfaces whose inclination angles to a light output surface differ from each other are formed at a light diffusion surface of the light guide plate. The conical sheet is provided with a flat plate portion on which a plurality of cones are formed. The cones protrude toward the light guide plate. | 04-16-2009 |
20090103006 | Backlight assembly and liquid crystal display device using the same - A liquid crystal display (LCD) device includes an LCD panel having an exterior surface with a first area and an interior surface; a light filter layer having an exterior surface provided at the interior surface of the LCD panel and an interior surface; a light guide assembly provided behind the interior surface of the light filter layer, the light guide assembly including a plurality of light pipes; a light source including a plurality of selectively illuminated lamps arranged at a lateral side of the light guide assembly, each of the lamps being respectively associated with a different one of the light pipes for emitting light into the respective light pipe; a plurality of diffusion surfaces, each of the diffusion surfaces being provided on a selected area of a respective one of the plurality of the light pipes, the selected area being smaller than the first area; wherein each of the diffusion surfaces causes light to be emitted from the selected area of the respective light pipe when the light pipe is illuminated by the lamp associated therewith. | 04-23-2009 |
20090103007 | DIELECTRIC BARRIER DISCHARGE LAMP, BACKLIGHT DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - A dielectric barrier discharge lamp | 04-23-2009 |
20090103008 | Backlight device for dual-view display - The present invention provides a backlight for dual-view display, comprising: a light source; a light-guide plate, which allows the incoming of light from the light source and uniformly guides and diffuses the light; a diffusing sheet, which is placed between the light-guide plate and liquid crystal panel; two prism sheets, which are placed between the diffusing sheet and the liquid crystal panel; and a reflective sheet, wherein the face where the prism is formed on the prism sheet on the diffusing sheet side amongst the two prism sheets faces the diffusing sheet, and the prism axis (the ridge line of the prism) is placed as to be parallel to a longitudinal direction with respect to the liquid crystal screen; the face where the prism is formed on the prism sheet on the liquid crystal panel side faces the liquid crystal panel, and the prism axis (the ridge line of the prism) is placed as to be the same as the lateral directions with respect to the liquid crystal screen; the prism tip angle of the prism sheet on the diffusing sheet side is 80° to 95°, and the prism tip angle of the prism sheet on the liquid crystal panel side is 70° to 100°. | 04-23-2009 |
20090115936 | BACKLIGHT AND LIQUID CRYSTAL DISPLAY USING SAME - A backlight unit | 05-07-2009 |
20090122227 | Integrated backlight illumination assembly - The present invention provides an integrated backlight illumination assembly for an LCD display comprising, a substrate for providing structural and functional support to the assembly, a bottom reflector provided on the substrate and a plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. Further, the invention provides a plurality of light films with a thickness between 10 microns to 3mm and having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light and a top diffuser for diffusing the uniform plane of light, and wherein the plurality of light films has a thickness between 0.1 mm to 1.0 mm and a bending stiffness between 50 to 1200 millinewtons. | 05-14-2009 |
20090122228 | DIRECT-LIT LIQUID CRYSTAL DISPLAYS WITH LAMINATED DIFFUSER PLATES - In a directly-illuminated liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management films, including a diffuser layer, lie between the light source and the LCD panel to provide bright, uniform illumination. The diffuser layer is attached to a substrate which is separate from the light source and the LCD panel, or may be attached to either the LCD panel or, when using a two dimensional light source, to the light source. The other light management layers may also be attached to the separate substrate or to the LCD panel or two-dimensional light source. High levels of illumination uniformity at the LCD may be achieved with a uniform (non-patterned) diffuser, even with relatively low levels of diffusion, when the diffuser is used with a brightness enhancing layer. | 05-14-2009 |
20090128737 | Multifunctional thick film reflective polarizer for displays - Multilayer reflective polarizers are disclosed that utilize a thick film multilayer stack and that are suitable for use in liquid crystal display devices. The disclosed polarizers can be mechanically stiff and suitable for use as a plate or substrate for other light control films within the display. The polarizers can also include diffusing means to scatter transmitted light of the pass state, reflected light of the block state, or both. | 05-21-2009 |
20090128738 | Light-Transmitting Resin Board - There is provided a light-transmitting resin plate for a liquid crystal display which has achieved conversion of a linear light source into a surface light source together with a higher luminance by minimizing the loss of the transmitted light due to a light-diffusing agent and forming a specific semi-elliptic convex lens shape on the light-exiting surface side. There is also provided a light-transmitting resin plate which can satisfy a long-term optical stability of a backlight as well as shape stability of the resin plate. | 05-21-2009 |
20090128739 | LIGHT DIFFUSER PLATE WITH LIGHT-COLLECTING LAYER - There is provided a light diffuser plate with a light-collecting layer, which is sufficiently prevented from flawing and which is used to make it possible to sufficiently ensure a luminance in a forward direction. | 05-21-2009 |
20090128740 | Diffuser plate, backlight and display having the same - A diffuser plate includes a first optical sheet having a rear surface configured to receive light from a light source and having a front surface configured to provide light to a second optical sheet, the first optical sheet having a refractive part that includes a plurality of optical members at a surface of the first optical sheet, and a second optical sheet disposed in front of the first optical sheet, the second optical sheet including a rear surface configured to receive light from the first optical sheet, a front surface configured to emit light, and light-scattering beads within the first optical sheet. | 05-21-2009 |
20090135335 | OPTICAL FILM AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - An optical film and a liquid crystal display including the optical film are disclosed. The optical film includes a reflective polarizing film, a first primer layer on the reflective polarizing film, and a first projection on the first primer layer. | 05-28-2009 |
20090135336 | Light source, display device, portable terminal device, and ray direction switching element - A planar light source includes a large variable width of an irradiation angle of illumination light, a display device having a large variable width of an angle of field that uses the planar light source, a portable terminal device that uses the display device, and a ray direction switching element that is incorporated in the planar light source. A beam direction regulating element (a louver), which controls a direction of light, and a transparent and scattering switching element, which can switch the transparent state and the scattering state according to ON and OFF of an applied voltage, are provided between a backlight and a liquid crystal panel, whereby it is possible to increase a variable width of an irradiation angle of light in the planar light source and increase a variable width of an angle of field of the liquid crystal display device that uses the planar light source. | 05-28-2009 |
20090141210 | LIGHT SOURCE BLOCK ASSEMBLY AND BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - The present invention relates to a backlight unit with a light emitting diode block assembly connected thereto, and a liquid crystal display having the backlight unit. In one embodiment, the backlight unit includes a plurality of light source blocks each of which includes a substrate having a light source and an electrode portion formed thereon; a connector electrically connecting the light source blocks to each other, coupled to the light source blocks in contact with one side of the connector, and fastening the light source blocks to each other by cross-coupling the light source blocks; and a supporter disposed on the other side of the connector. In this manner, LED blocks can be simultaneously both electrically and mechanically coupled, using a relatively small and simple number of connectors, facilitating reliability and ease of manufacture. | 06-04-2009 |
20090141211 | Liquid crystal display device - A liquid crystal display device is provided, which includes, in this order, a light source, an optical diffusion layer, and a liquid crystal panel having polarizing plates disposed on both surfaces of a liquid crystal cell, wherein a surface of the optical diffusion layer on a liquid crystal panel side has a periodic fine shape, and an uppermost surface of the polarizing plate disposed on a visible side of the liquid crystal panel has an antiglaring layer having a random fine uneven shape and having a transmittance clearness degree of not more than 150%. While having a high brightness with less electric power as compared with the prior art, the liquid crystal display device does not generate a Moire fringe. | 06-04-2009 |
20090147179 | Prism Sheet and Production Method thereof and Surface Light Source Device - A prism sheet provided with an elongated prism formed surface ( | 06-11-2009 |
20090147180 | LIGHT GUIDE PLATE WITH SPIRAL-SHAPED LIGHT-GUIDING UNITS FOR USE IN A LIQUID CRYSTAL DISPLAY DEVICE - An optical plate includes a plurality of light-guiding elements. The optical plate includes a first optical surface which a light is incident to and a second optical surface which the light goes out from. The plurality of light-guiding elements disposed on the third optical surface are used for guiding the light incident to the first optical surface. Each light-guiding element includes a first arc portion, a second arc portion, and a third arc portion. Both first ends of the first arc portion and the second arc portion are connected with a first portion of the third arc portion, and a second end of the first arc portion is connected to a second portion of the second arc portion. Each light-guiding element is substantially spiral-shaped. | 06-11-2009 |
20090147181 | BACKLIGHT ASSEMBLY, DISPLAY APPARATUS HAVING THE SAME AND METHOD FOR ASSEMBLING THE SAME - A backlight assembly comprises a light source unit emitting light, a heat-blocking plate disposed over the light source unit to prevent heat generated from the light source unit from being upwardly transmitted, and a receiving container receiving the light source unit and the heat-blocking plate. The receiving container includes a bottom plate and a plurality of sidewalls. Each of the sidewalls extends from a side of the bottom plate and has openings formed through each of the sidewalls. The openings are formed over the heat-blocking plate. | 06-11-2009 |
20090147182 | BACKLIGHT MODULE AND DIFFUSION ASSEMBLY - A diffusion assembly for a liquid crystal display includes a diffuser and an optical film. The diffuser has at least one hanging element and a fixing element. The optical film has at least one hole, wherein the at least one hanging element is engaged with the at least one hole of the optical film, and the fixing element is substantially L-shaped and holds the optical film. | 06-11-2009 |
20090153776 | PRISM SHEET, METHOD FOR MAKING THE SAME AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - An exemplary prism sheet includes a transparent main body. The transparent main body has a surface. A plurality of first elongated micro-protrusions and second elongated micro-protrusions protrude from the surface of the main body. Each of the first elongated micro-protrusions extends along a first direction. Widths and heights of each of the first elongated micro-protrusions vary along the first direction. Each of the second elongated micro-protrusions extends along a second direction that intersects with the first direction. Widths and heights of each of the second elongated micro-protrusions vary along the second direction. A method for making the prism sheet and a liquid crystal display device using the prism sheet are also provided. | 06-18-2009 |
20090153777 | LIQUID CRYSTAL DISPLAY DEVICE - An LCD device includes lower and upper substrates facing each other, a liquid crystal layer between the lower and upper substrates, a first polarizing plate on the upper substrate, a second polarizing plate below the lower substrate, and a backlight unit below the second polarizing plate. The second polarizing plate has a light-diffusion layer that is proximate to the backlight unit. The light-diffusion layer has projections that project towards and contact the backlight unit. These projections are smooth curves that do not damage the surface of the backlight unit. The total of the Haze formed by the first and second polarizing plates is at least 40%. | 06-18-2009 |
20090167984 | BACKLIGHT UNIT, DISPLAY DEVICE HAVING THE SAME, AND METHOD THEREOF - A backlight unit, and a display device having the backlight unit, includes a light source, the light source formed to directly illuminate a display panel, and an optical plate arranged over the light source, wherein the optical plate includes a first surface and a second surface that faces the first surface, and the first surface is different in height from the second surface. | 07-02-2009 |
20090167985 | Optical Plate, Method of Manufacturing the Same and Liquid Crystal Having the Same - An optical plate having improved light scattering power, a method of manufacturing the same and a liquid crystal display having the same. An optical plate includes a base material layer, and a lens portion having a plurality of unit lenses formed on one surface of the base material layer, each of the unit lenses having a convex shape, wherein a diffusion portion is formed in each of the unit lenses. The amount and cost of the light diffusing agent can be reduced, light transmittance can be improved, light uniformity can be enhanced without occurrence of bright lines, and intensity of light to be viewed is improved, thereby enhancing luminance | 07-02-2009 |
20090167986 | MULTILAYER FILM, BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - The present invention is directed to a multilayer film. The present invention is also directed to a backlight unit and a liquid crystal display into which the multilayer film is incorporated. The backlight unit comprises a light source; and a multilayer film disposed adjacent to the light source, wherein the multilayer film comprises a first layer including a plurality of first particles and at least one second layer including a plurality of second particles, and wherein the second layer is disposed adjacent to the first layer and has a refractive index different from the first layer. The liquid crystal display comprises a liquid crystal panel; a light source; and a multilayer film disposed adjacent to the light source, wherein the multilayer film comprises a first layer including a plurality of first particles and at least one second layer including a plurality of second particles, and wherein the second layer is disposed adjacent to the first layer and has a refractive index different from the first layer. | 07-02-2009 |
20090174838 | BACKLIGHT ASSEMBLY AND METHOD OF ASSEMBLING THE SAME AND LIQUID CRYSTAL DISPLAY INCLUDING BACKLIGHT ASSEMBLY - A backlight assembly includes a light source unit including a circuit board, a light source disposed on a first plane of the circuit board, and at least one connection unit disposed on a second plane opposite to the first plane of the circuit board and electrically connected to the light source, a receiving container having a bottom plate and sidewalls extending from edges of the bottom plate and receiving the light source unit, the bottom plate including at least one opening portion in which the connection unit is inserted and exposed to the outside, and at least one driving unit disposed at a rear surface of the receiving container and connected to the connection unit for driving the light source unit. | 07-09-2009 |
20090174839 | LIQUID CRYSTAL DISPLAY - In a liquid crystal display device of a transflective type, the viewing angle characteristics of displaying in the transmission mode can be sufficiently improved, and yet bright displaying in the reflection mode can be realized. The liquid crystal display device is a liquid crystal display device of a transflective type including a liquid crystal display panel and an illuminator. The liquid crystal display panel includes a first light diffusing element disposed at the viewer's side of a liquid crystal layer and a second light diffusing element disposed at the opposite side of the liquid crystal layer from the viewer. | 07-09-2009 |
20090185107 | LOW PROFILE BACKLIGHT APPARATUS - A backlight apparatus includes a point source of radiant electromagnetic energy. A total internal reflection (TIR) lens has a vertical central axis located along a path of the radiant electromagnetic energy. The TIR lens receives and evenly distributes the radiant electromagnetic energy at an output face. The radiant electromagnetic energy exiting the TIR lens is substantially collimated and defines vertical optical paths parallel to the vertical central axis. A first diffuser receives the radiant electromagnetic energy from the output face of the TIR lens and spreads the radiant electromagnetic energy to a predetermined first angle relative to the vertical optical paths. | 07-23-2009 |
20090190067 | LIGHT DIFFUSER PLATE, SURFACE LIGHT SOURCE, AND LIQUID CRYSTAL DISPLAY - An object of the present invention is to provide a light diffuser plate sufficiently suppressed in its yellowish coloring or the like and excellent in impact resistance. | 07-30-2009 |
20090195729 | DISPLAY HAVING INTEGRATED FUNCTIONS IN ONE OR MORE LAYERS - An optical display having integrated functions in one or more layer is disclosed. Specifically, the optical display having two or more of the optical components integrated into a single layer without laminating two different layers of material together. A method of making a wire grids polarizer is also disclosed. | 08-06-2009 |
20090201441 | Tensioned optical element having crimping frame and spring - The invention provides an optical element comprising at least one optical film wherein at least a portion of the optical film is maintained dimensionally stable by the presence of a mechanism for application of a controlled tensile force to the film. The mechanism for application of a controlled tensile force uses a crimping frame in association with a cantilevered spring which effectively maintains flatness of the film or films. | 08-13-2009 |
20090201442 | DISPLAY DEVICE AND ELECTRONIC APPARATUS - A display device is provided which offers double-sided display and achieves a thin structure and also which prevents deterioration in display quality of each of front and back display units when an illumination unit such as a backlight is shared by these display units. The display device includes a first display unit having a display surface on the front surface thereof; a second display unit having a display surface on the rear surface thereof; and a common illumination unit interposed between the first display unit and the second display unit, for illuminating both the first display unit and the second display unit with light. A transflector is interposed between the second light-emitting surface of the light-guiding member and the second display unit. | 08-13-2009 |
20090207339 | ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device ( | 08-20-2009 |
20090219462 | Backlight unit and liquid crystal display device including the same - A lamp guide includes: a horizontal part; at least one supporting part extending from a front surface of the horizontal part; a plurality of holding parts on the front surface of the horizontal part, each of the plurality of holding parts holding a lamp and twisted from the horizontal part; and at least one coupling part extending from a rear surface of the horizontal part. | 09-03-2009 |
20090237595 | BRIGHTNESS ENHANCEMENT FILM-LAMINATED LIGHT DIFFUSER PLATE AND METHOD FOR PRODUCING THE SAME - The present invention provides a brightness enhancement film-laminated light diffuser plate which can sufficiently prevent scratching, and also can ensure sufficient brightness. | 09-24-2009 |
20090251637 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a liquid crystal display panel and a backlight device which supplies light to a back surface of the liquid crystal display panel. The backlight device includes a diffusion plate, a plurality of cold cathode fluorescent lamps, and a reflection plate on which light is reflected. Assuming arrangement intervals of the plurality of cold cathode fluorescent lamps in the direction from a center portion to a peripheral portion as “a”, “b”, “c”, “d”, “e”, and “f” respectively, the plurality of cold cathode fluorescent lamps is arranged to satisfy the relationship of a>b≧c≧d≧e≧f. Such a liquid crystal display device can control the brightness distribution due to the arrangement of the cold cathode fluorescent lamps within the backlight device thus obtaining a high-quality image display without generating brightness irregularities. | 10-08-2009 |
20090256997 | Liquid Crystal Display Device - In a liquid crystal display device having a light diffuser, a desired luminance distribution is realized and displaying with a high contrast ratio across a broad angle range is performed. | 10-15-2009 |
20090256998 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY - A backlight module and a liquid crystal display are provided. The liquid crystal display comprises a liquid crystal panel, a light source provided below the liquid crystal panel and at least one support member provided on the upper surface of the light source for supporting a liquid crystal panel. According to the embodiment of the present invention, when the liquid crystal panel is subject to a force upon pressing or impact, the force can be counteracted by the support member. Therefore, the deformation of the liquid crystal panel can be effectively reduced so that light leakage can be prevented. | 10-15-2009 |
20090256999 | Lens Array Sheet, Light Source and Liquid Crystal Display Device - A lens array sheet includes a lens layer having a lens surface on which a plurality of lenses are formed in an array, a light reflection layer arranged at an opposite side to the lens surface of the lens layer and having an opening within a light focusing region in the lenses to transmit light, for reflecting light at a site other than the opening, and a light diffusion layer arranged between the lens layer and the light reflection layer, for diffusing light, which passes through the opening and is directed toward the lens layer. | 10-15-2009 |
20090257000 | LENS ARRAY SHEET, LIGHT SOURCE AND LIQUID CRYSTAL DISPLAY DEVICE - A lens array sheet includes a lens layer having a lens surface on which a plurality of lenses are formed in an array, and a light diffusion layer arranged at an opposite side to the lens surface of the lens layer, for diffusing light directing toward the lens layer, wherein the light diffusion layer has a light reflection portion, which is embedded in at least a part of a non-light focusing region of the lens layer, for reflecting light passing through the non-light focusing region and directing toward the lens layer. | 10-15-2009 |
20090262281 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY MODULE INCLUDING THE SAME - A backlight unit includes a reflection sheet, lamps arranged over the reflection sheet and with a first distance between adjacent lamps, a first diffuser plate disposed over the lamps and spaced apart from the reflection sheet with a second distance, the first diffuser plate having a first surface facing the reflection sheet and a second surface opposite to the first surface, wherein the first surface is flat and the second surface includes first patterns, and a second diffuser plate disposed over the first diffuser plate, the diffuser plate having a third surface facing the first diffuser plate and a fourth surface opposite to the third surface, wherein the third surface is flat and the second surface includes second patterns, wherein a ratio of the first distance over the second distance is within a range of more than 0 and less than and/or equal to 2.75. | 10-22-2009 |
20090262282 | BRIGHTNESS ENHANCEMENT FILM FOR LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF - A liquid crystal display having a brightness enhancement film and a method of manufacturing the brightness enhancement film, the method including providing a solution of high molecular weight resin on a high molecular weight film, uniformly distributing the solution of high molecular weight resin on the high molecular weight film, and drying the solution of high molecular weight resin to form a high molecular weight resin layer, wherein the high molecular weight resin layer has a hexagonal lattice structure. | 10-22-2009 |
20090273729 | Polarizing plate, manufacturing method thereof and display device using the same - A polarizing plate, a manufacturing method thereof and a display device using the same are provided. The polarizing plate comprises a brightness-enhancement film, a diffuser layer and a polarizing film. The diffuser layer is formed on one surface of the brightness-enhancement film, and the polarizing film is disposed on another surface of the brightness-enhancement film. | 11-05-2009 |
20090279018 | Optical device having light diffusing paper incorporated therewith - An optical device includes a light diffusing paper as integrally formed, secured, bonded or adhered to a surface of an optical element, which includes: an optical film, a brightness enhancement film (BEF), a display, a light guide, to thereby form an optical device with increased light uniformity. | 11-12-2009 |
20090279019 | Backlight Device and Liquid Crystal Display Apparatus - Disclosed is a backlight device comprising: a light emitting section including a plurality of surface light emitters which are arranged and disposed so as to have a predetermined gap; and a diffuser plate which is disposed in front of the light emitting section to diffuse a light irradiated from the light emitting section, wherein an angle between two light irradiation surfaces in the adjacent surface light emitters is smaller than 180 degrees. | 11-12-2009 |
20090284685 | LIQUID CRYSTAL DISPLAY MODULE, WAVELENGTH DISPERSIVE DIFFUSION SHEET AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display module is provided to reduce a color shift. The liquid crystal display module is comprised of a liquid crystal panel in which the transmittance for incident illumination light has wavelength dependency that is different in both an incident angle and a wavelength, a light source for illuminating the liquid crystal panel from its back surface, and a wavelength dispersive diffusion sheet set between the liquid crystal panel and the light source, wherein the wavelength dispersive diffusion sheet has a characteristic to ease wavelength dependency of the liquid crystal panel. | 11-19-2009 |
20090284686 | OPTICAL SHEET, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY - An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit are provided. The optical sheet includes a base film including a first surface and a second surface opposite the first surface and a plurality of projections on the base film. A first thickness between the first surface and the second surface is different from a second thickness between the first surface and the second surface. | 11-19-2009 |
20090290095 | Optical unit and LCD device using the optical unit - An optical unit includes a light conductive plate having a first surface and a second surface, at least one optical sheet on the first surface of the light conductive plate, and a light reflective sheet extending over an entire second surface of the light conductive plate and fastened on a portion of a first surface of the optical sheet adjacent a periphery thereof to fasten the light conductive plate, the optical sheet, and the light reflective sheet as an optical unit, and to define a light discharge region on the first surface of the optical sheet and the first surface of the light conductive plate. | 11-26-2009 |
20090296020 | LIGHT DIFFUSION DEVICE, BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY - A light diffusion device including a light incident surface and a light exit surface is provided. The light exit surface has at least one light scattering pattern. A trajectory of the light scattering pattern is a continuous curve. The continuous curve is winded to form a plurality of closed patterns in sequence on the light exit surface, and two adjacent closed patterns at least overlap partly. | 12-03-2009 |
20090296021 | OPTICAL SHEET, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY - An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit may be provided. The optical sheet may include a reflective polarizing film, a base film on one surface of the reflective polarizing film, and a projection portion on the base film. The projection portion may include a plurality of diffusion particles, a plurality of peaks, a plurality of valleys formed from the plurality of peaks, and a base portion between the base film and the peaks and the valleys. A height of the base portion is approximately 5% to 50% of a height of one of the peaks. | 12-03-2009 |
20090296022 | OPTICAL SHEET, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY - An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit may be provided. The optical sheet may include a reflective polarizing film, a first adhesive layer on one surface of the reflective polarizing film, and a first diffusion layer on the first adhesive layer. The first diffusion layer may include a first light transmitting material and a plurality of first diffusion particles provided therein. A difference between a refractive index of the first adhesive layer and a refractive index of the first light transmitting material is less than or equal to approximately 0.2. | 12-03-2009 |
20090296023 | OPTICAL SHEET, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY - An optical sheet, a backlight unit including the optical sheet and a liquid crystal display including the backlight unit are disclosed. The optical sheet includes a reflective polarizing film, and a first diffusing layer on the reflective polarizing film. The first diffusing layer includes a plurality of first diffusion particles. The first diffusion particles have a volume distribution as a function of diameter. For a diameter D of a first diffusion particle corresponding to a maximum value of the volume distribution, a summation of volumes of a portion of the first diffusion particles having diameters between D−2 μm and D+2 μm is about 40% to 80% of a total volume of the first diffusion particles. | 12-03-2009 |
20090296024 | LIGHT DIFFUSER PLATE WITH PRIMER LAYER, PROCESS FOR PRODUCING THE SAME, LAMINATED OPTICAL MEMBER, SURFACE LIGHT SOURCE APPARATUS AND LIQUID CRYSTAL DISPLAY - The present invention relates to a light-diffuser-plate-with-primer-layer, which permits lamination of an optical film or the like thereon with a sufficient bonding strength, and a process for producing the same efficiently and at a lower cost. | 12-03-2009 |
20090296025 | LAMP ASSEMBLY, LIGHT SUPPLYING APPARATUS AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A lamp assembly, light supplying module and LCD device using the same are provided. The LCD device includes the light-supplying module for generating a first light, a light distribution-changing module for receiving the first light and changing the optical characteristics of the first light to output a second light, and a display module for receiving the second light having improved optical characteristics, the light distribution-changing module being coupled to the light-supplying module by means of a first engaging member, the display module being coupled to the light distribution-changing module by means of a second engaging member, and the display module, light distribution-changing module and light-supplying module being coupled to each other by means of a third engaging member. Therefore, each component of the LCD device having above structure is easily separated, replaced and easily repaired. | 12-03-2009 |
20090303414 | OPTICAL MEMBER WITH A SCATTER LAYER, AND BACKLIGHT ASSEMBLY AND DISPLAY DEVICE HAVING THE SAME - A display device includes a backlight assembly including an optical member comprising: a base film; a plurality of linear shaped prisms disposed on the base film and extending in one direction; and a scatter layer underlying the base film and attached to the base film and comprising a coat of beads which is spread under the base film, the scatter layer having a haze value of about 10% to about 30%. | 12-10-2009 |
20090303415 | Backlight module with reflective diffuser and liquid crystal display with same - An exemplary backlight module includes a first light source, and a diffusing film. The diffusing film includes a light incident surface adjacent to the first light source, a light emitting surface located at an opposite side thereof, and a plurality of first reflective portions provided at the light incident surface. A pitch between every two adjacent first reflective portions progressively increases with increasing distance away from the first light source. A liquid crystal display employing the backlight module is also provided. | 12-10-2009 |
20090303416 | PRISM SHEET, AND BACK LIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE THEREWITH - The present invention relates a prism sheet, and a back light unit and a liquid crystal display device therewith, in which total thickness of a back light unit is reduced while taking place of the lamp mura is prevented, for improving a picture quality. | 12-10-2009 |
20090310064 | STRIPED DIFFUSER, METHOD OF MANUFACTURING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE WITH ADJUSTABLE VIEWING ANGLE EMPLOYING THE STRIPED DIFFUSER - Provided are diffuser, method of manufacturing same, and liquid crystal display device employing the diffuser. Liquid crystal display device includes: backlight unit; liquid crystal panel on which image is formed by using light emitted by backlight unit, and comprising: color filter comprising plurality of pixels each of which comprises plurality of subpixels that are alternately arranged and transmit light in different wavelength bands; and liquid crystal layer whose transmittance is adjusted under electrical control; and diffuser disposed on a top surface or a bottom surface of the liquid crystal panel and comprising diffusing areas and transparent areas which alternate with each other at intervals corresponding to the width of the subpixels, wherein the liquid crystal layer comprises liquid crystal areas corresponding to the diffusing areas and liquid crystal areas corresponding to the transparent areas and the transmittances of the liquid crystal areas are adjusted according to the subpixels. | 12-17-2009 |
20090316072 | LIGHT GUIDE PLATE, LIGHT GUIDE PLATE ASSEMBLY, AND PLANAR LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE USING THESE - A light guide plate includes a light exit plane and a light entrance end, is formed into a shape having a thickness in a direction orthogonal to the light exit plane, the thickness being gradually larger as being farther-from the light entrance end, and contains scattering particles dispersed therein, and a light guide plate assembly includes the light guide plate and a prism sheet which includes a plurality of prisms arrayed in parallel with each other, and is arranged so that vertex angles of the prisms face the light exit plane. The scattering particles scatter light entering from the light entrance end and propagating in the light guide plate, which satisfy Expressions (1) and (2) below, and vertex angles of the prisms of the prism satisfy Expression (3) and (4) below. | 12-24-2009 |
20090316073 | Light Diffusion Module and a Back Light Module Using the Same - A light diffusion module and a back light module using the same. The light diffusion module is disposed corresponding to the light source module of the back light module. The light diffusion module includes a first diffusion layer and the second diffusion layer. The first diffusion layer is disposed on top of the light source module and the top light exit surface has a plurality of first micro structures juxtapositioned to each other. The second diffusion layer is disposed on top of the first diffusion layer, and the top surface has a plurality of second micro structures juxtapositioned to each other. The ratio of the width of each first micro structure to the width of each second micro structure is between 1.1 and 1.8. The ratio of the height of each first micro structure to the height of each second micro structure is between 0.8 and 1.5. | 12-24-2009 |
20090322986 | Color light guide panel and liquid crystal display - A color light guide panel, suitable for differentiating an incident light into multiple color lights is provided. The color light guide panel includes a substrate and a color light output structure. The substrate has multiple pixel regions, and the color light output structure is disposed in each of the pixel regions. The color light output structure includes a first nano-pattern, a second nano-pattern and a third nano-pattern. The incident light is scattered by the first nano-pattern for producing a first color light, scattered by the second nano-pattern for producing a second color light, and scattered by the third nano-pattern for producing a third color light. The color light guide panel can output uniform and high luminous first, second and third color light. Moreover, a liquid crystal display device having the above color light output structure is also provided. | 12-31-2009 |
20100007821 | Diffuser prism sheet, LCD back light unit including the same, and LCD device including the same - A diffuser prism sheet, an LCD back light unit including the same, and an LCD device including the same, the diffuser prism sheet including a base film made of a transparent material, and a light refracting part on a surface of the base film, the light refracting part including a plurality of unit prisms arranged in one direction, having a predetermined cross-sectional shape and valley regions between adjacent unit prisms, and light diffusing elements in the valley regions between the adjacent unit prisms. | 01-14-2010 |
20100014025 | BACKLIGHT DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER - A backlight device capable of preventing or reducing, even when an optical sheet bends, occurrence of luminance nonuniformity and/or shades due to the bend. The backlight device | 01-21-2010 |
20100020266 | FLAT PANEL DISPLAY ASSEMBLY WITH IMPROVED LUMINANCE UNIFORMITY AND METHOD FOR CONSTRUCTING THE SAME - A flat panel display assembly and a method for constructing a flat panel display assembly are provided. The flat panel display assembly includes a substrate, a plurality of light emitting components mounted to the substrate, at least one diffusion component having concave and convex opposing surfaces. Each of the diffusion components is coupled to the substrate such that the concave surface thereof is between at least some of the plurality of light emitting components and the convex surface thereof. The at least one diffusion component is configured to diffuse light emitted from the at least some of the plurality of light emitting components as the light propagates therethough. A diffusion layer is coupled to the substrate such that the convex surface of each of the at least one diffusion component is between the concave surface thereof and the diffusion layer and configured to further diffuse the light that propagates through the at least one diffusion component. | 01-28-2010 |
20100020267 | BACKLIGHT APPARATUS AND LIQUID CRYSTAL DISPLAY APPARATUS - A backlight apparatus is provided that enables a balance of brightness to be maintained over the entire area of a display screen and long life to be achieved. The surface of substrate | 01-28-2010 |
20100026932 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device including: a light source; a polarizing film of light source side; a liquid crystal cell; and a polarizing film of display side is provided, the liquid crystal display device further comprising: an optical compensatory sheet disposed between the liquid crystal cell and the polarizing film of the light source side or between the liquid crystal cell and the polarizing film of the display side; and a light-scattering sheet disposed at an outermost surface of the polarizing film of display side, wherein luminance in a normal direction with respect to the liquid crystal display device in a black display state without the light-scattering sheet is 0.3 cd/m | 02-04-2010 |
20100033651 | SURFACE EMISSION DEVICE, OPTICAL ELEMENT AND LIQUID CRYSTAL DISPLAY DEVICE - Using a distance L between the centers of light sources | 02-11-2010 |
20100033652 | ANTIGLARE FILM AND DISPLAY DEVICE EMPLOYING THE SAME, AND LIGHT DIFFUSING FILM AND SURFACE LIGHT SOURCE SYSTEM EMPLOYING THE SAME - An actinic-energy-ray-curable resin composition ( | 02-11-2010 |
20100039585 | PLANAR ILLUMINATION DEVICE, AND IMAGE DISPLAY DEVICE - A laser light source ( | 02-18-2010 |
20100039586 | OPTICAL ELEMENT AND BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - An optical element capable of increasing an angular field while improving luminance by condensing light, and a backlight unit and a liquid crystal display including the same. The optical element includes a light-transmitting base film; a plurality of diffusing cavities or convex diffusing structures formed in one surface of the base film to diffuse light entering the base film; and a light-condensing pattern formed in the surface of the base film where the diffusing cavities or convex diffusing structures are formed so as to condense incident light. | 02-18-2010 |
20100045897 | CONDENSING FILM FOR LCD BACKLIGHT UNIT - There is provided a condensing film for an LCD backlight unit. The condensing film includes a base member unit; a condenser unit disposed in an upper surface of the base member unit and having unit lens groups sequentially arranged thereon, each of the unit lens group being composed of a combination of at least two lenses that are different in shape; and a reflector unit disposed in a lower surface of the base member unit and composed of an opening through which light passes and a reflective surface from which the light reflects. The condensing film configured thus may be useful to solve the problems regarding the viewing angle and the uniformity in brightness of a screen since the condensing film has a more moderate distribution of emitted light than the conventional condensing films. | 02-25-2010 |
20100053502 | PRISM SHEET AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - Disclosed are a prism sheet and a liquid crystal display having the same. The prism sheet includes a base and a plurality of prism mountains. The base includes a front surface and a rear surface facing the front surface. The prism mountains are integrally formed with the base on the rear surface of the base. At least one prism mountain includes a plurality of light incidence surfaces and a reflective surface. The light incidence surfaces receive light. The reflective surface is adjacent to one of the light incidence surfaces to reflect the light. A vertical angle of the prism mountains formed between the light incidence surface adjacent to the reflective surface and the reflective surface, is in a range of about 70° to about 100°. | 03-04-2010 |
20100060817 | Backlight unit and liquid crystal display device including the same - A backlight unit for a liquid crystal display panel includes a diffusor that diffuses light emitted from a front surface thereof, a reflective plate that reflects light toward a rear surface of the diffusor; and a collimator that collimates the light emitted from the front surface of the diffusor toward the liquid crystal display panel. The collimator includes a base layer that refracts the diffused light from the diffusor toward the liquid crystal panel, a collimating layer of lenses disposed along two perpendicular directions on a front surface of the base layer, and a reflective pattern on a rear surface of the base layer along a boundary of each of the lenses, the reflective pattern exposing an aperture portion of the base layer facing each of the lenses. | 03-11-2010 |
20100060818 | ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - A backlight (illumination device; | 03-11-2010 |
20100066945 | BACKLIGHT DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER - A backlight device is provided with a cold cathode fluorescent tube as a first light source that emits light of green, and a cold cathode fluorescent tube as a second light source that can be switched on independently from the first light source and emits light of red and blue. A diffusion member provided on the light source side of a diffusion plate is disposed opposite to the first light source so as to diffuse green light. | 03-18-2010 |
20100066946 | BACKLIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A backlight assembly includes an optical member that diffuses light generated from lamps. The optical member includes first and second diffusion members that are designed to have light transmittance that complementarily vary according to areas. Thus, an optical member capable of supplying light having uniform brightness onto the whole display area of the LCD is easily designed. | 03-18-2010 |
20100073599 | LIQUID CRYSTAL DISPLAY DEVICE AND BACKLIGHT MODULE THEREOF - A backlight module for a liquid crystal display, comprising: a light guiding plate comprising one or more incident surface and one light emitting surface; a reflecting film provided on a side of the light guiding plate opposite to the light emitting surface; and a reflecting type polarizing plate disposed directly on the light emitting surface of the light guiding plate and comprising a metal grating. | 03-25-2010 |
20100079701 | LENS SHEET, SURFACE LIGHT SOURCE DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - In a prism sheet ( | 04-01-2010 |
20100079702 | SURFACE LIGHT SOURCE DEVICE AND LCD UNIT - The disclosed subject matter includes providing a surface light source device using a plurality of different color light-emitting chips that can emit light with uniform color and a LCD unit having the same qualities. The surface light source device can include a light guide having a light incoming surface and a light-emitting surface, and light sources including the light-emitting chips located adjacent the light incoming surfaces. The light-emitting surface can include a light-mixing area that is spaced a distance L away from the light incoming surface, and the widest interval between the adjacent light-emitting chips is configured to be L/27 or less. Light emitted from the light sources can generate a mixture light with very little color variability in the light-mixing area, and the light can be emitted from the light-emitting surface other than the light-mixing area. Therefore, the LCD unit that includes a LCD located toward the light guide can illuminate the display with uniform color light. | 04-01-2010 |
20100085508 | DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A display panel includes; a first substrate including glass and having at least one unpolished surface, a second substrate disposed substantially opposite to the first substrate, a liquid crystal layer interposed between the first substrate and the second substrate, a first polarizing plate disposed on an outer surface of the first substrate and including a diffusion layer, and a second polarizing plate disposed on an outer surface of the second substrate. | 04-08-2010 |
20100103347 | DISPLAY AND ILLUMINATOR - A display for illuminating a liquid crystal display panel with laser light of uniform light quantity distribution, and an illuminator for irradiating with laser light of uniform light quantity distribution are provided. | 04-29-2010 |
20100103348 | DISPLAY - A display including a display panel, a transparent rear plate, a backlight module, and a first optical film set is provided. The transparent rear plate has a first surface, a second surface, and an optical decoration. The first surface is facing the display panel, and the second surface is relatively far away from the display panel. The optical decoration is located on at least one of the first and second surfaces. The backlight module is disposed between the display panel and the transparent rear plate. The first optical film set is disposed between the backlight module and the transparent rear plate. Combination of the optical decoration, the backlight module, and the first optical film set forms a plurality of images which can be displayed on the second surface of the transparent rear plate. | 04-29-2010 |
20100103349 | ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - A backlight of the present invention (illumination device) | 04-29-2010 |
20100103350 | LIQUID CRYSTAL DISPLAY APPARATUS - A liquid crystal display apparatus includes a liquid crystal display device, a surface light source to irradiate light toward the device, an optical film disposed between the device and source, and a diffusion member disposed between the film and device. The device includes a pair of substrates facing to each other through a space with electrodes formed on at least one of opposite surfaces, a liquid crystal layer sealed into the space between the substrates, and a pair of polarizing plates arranged sandwiching the substrates therebetween. The film is made of a transparent film-like member and has two mutually faced film surfaces, one of the surfaces is formed into a planar shape, the other surface is formed into a convexo-concave structure with elongate microprisms in parallel to each other, and the film is disposed between the device and source with the one surface directed toward the device. | 04-29-2010 |
20100110335 | Display unit with improved backlighting - A display unit is disclosed that includes a liquid crystal panel and a backlighting panel. The backlighting panel includes a front light emitting surface patterned with pixels and a back reflective surface. The display unit also includes a controllable light source, that preferably includes light emitting diodes that transmit light into the backlighting panel through side wall of the backlighting panel. The display unit is preferably used in portable electronic devices, such as personal digital assistants (PDAs), cellular phones and digital entertainment systems. | 05-06-2010 |
20100110336 | OPTICAL ELEMENTS, BACKLIGHT MODULES, AND LIQUID CRYSTAL DISPLAY EMPLOYING THE SAME - Optical elements and backlight modules employing the same are provided. The optical element can be a brightness enhancement diffusion complex film, comprising a cholesteric liquid crystal film and a transparent optical film directly disposed on the cholesteric liquid crystal film. Particularly, the whole transparent optical film directly contacts to the cholesteric liquid crystal film, in the absence of an intermediate located between the transparent optical film and the cholesteric liquid crystal film. | 05-06-2010 |
20100110337 | BACKLIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A backlight assembly including direct-type lamps and an edge-type lamp and a liquid crystal display having the backlight assembly. The direct-type lamps are arranged with a predetermined interval to emit light, and the edge-type lamp is provided at a side portion of a light guide plate provided above or below the direct-type lamps. The light guide plate and a light guide pattern output light, which is emitted from the edge-type lamp, through a space between two adjacent direct-type lamps. The backlight assembly supplies light to the light receiving region such that brightness is uniformly distributed throughout the light receiving region regardless of the position of the direct-type lamps. | 05-06-2010 |
20100118229 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR FABRICATING THE SAME - The present invention relates to a liquid crystal display device and a method for fabricating the same, and the liquid crystal display device may be configured by including a light guide plate with a plurality of movement prevention structures at both sides thereof, respectively; a lower cover with opening portions at the positions corresponding to the plurality of movement prevention structures, and on which the light guide plate being disposed; a light source unit disposed at a side of the light guide plate; a support main with insertion portions for inserting and mounting the movement prevention structures at the positions corresponding to the opening portions; a diffuser sheet and an optical sheet disposed on the light guide plate; and a liquid crystal panel disposed at an upper portion of the support main. | 05-13-2010 |
20100134720 | Optical prism sheet, backlight unit, and liquid crystal display - An optical prism sheet includes an optical refracting part including a plurality of unit prisms, the unit prisms each having a predetermined cross-section and being disposed on one side of the optical prism sheet, and fine irregularities having a predetermined roughness and configured to diffuse light, the fine irregularities being on surfaces of the unit prisms and increasing a unit surface area of the optical refracting part by about 1.1 to about 100 times. | 06-03-2010 |
20100141869 | PASSIVE AND HYBRID DAYLIGHT-COUPLED BACKLIGHTS FOR SUNLIGHT VIEWABLE DISPLAYS - A passive daylight-coupled display having an LCD panel, a diffuser, and a curved reflector behind the LCD panel. For passive backlighting, the diffuser transmits daylight to the reflector, which reflects the daylight to the LCD panel and provides for substantially uniform distribution of the daylight on the LCD panel for backlighting it. A hybrid display includes both a passive backlight and an active backlight for providing backlighting from an active light source. | 06-10-2010 |
20100149457 | LIQUID CRYSTAL DISPLAY MODULE, LIQUID CRYSTAL DISPLAY AND ITS ILLUMINATOR - A liquid crystal display module in which its color shift is reduced. The liquid crystal display module comprises a liquid crystal panel having such wavelength dependency that the transmittance to incident illumination light is different depending on both the incident angle and the wavelength of the illumination light and its anisotropy is different in the lateral direction and the vertical direction, and a plurality of single color light sources having different light distribution characteristics of emission wavelength and illuminating the liquid crystal panel from the back, wherein the plurality of single color light sources emit illumination light having light distribution characteristics for relaxing the wavelength dependency and the anisotropy. | 06-17-2010 |
20100157198 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A backlight unit with uniform brightness (luminance) is disclosed. | 06-24-2010 |
20100157199 | Liquid crystal display device - In the present invention, a diffusing sheet for diffusing light outputted from a light guide plate is extended to a stepped upper surface of an LED substrate and disposed at a lateral surface of the light guide plate so that the diffusing sheet can completely cover the light guide plate, thereby preventing undiffused light from being supplied to an liquid crystal display device. | 06-24-2010 |
20100165247 | LIQUID CRYSTAL DISPLAY - A liquid crystal display (LCD) device includes: a liquid crystal panel; a plurality of lamps disposed under the liquid crystal panel, supplying light to the liquid crystal panel; a diffusion plate disposed above the lamps and diffusing light emitted from the lamps; a diffusion sheet disposed on the diffusion plate and including a plurality of reflection patterns formed on a region of a rear surface adjacent to the lamps and including reflection beads reflecting a portion of light from the diffusion plate, wherein the respective reflection patterns of the diffusion sheet are formed to extend in a direction parallel to a lengthwise direction of the lamps. | 07-01-2010 |
20100165248 | Backlight unit and liquid crystal display device having the same - Disclosed are a backlight unit and a liquid crystal display (LCD) device having the same. The backlight unit comprises an optical source for emitting light, a diffusion sheet for diffusing the light incident thereon from the optical source, a first prism sheet for enhancing brightness of the light diffused by the diffusion sheet to be incident thereon by collecting the light to the front side, a second prism sheet for re-collecting the light collected by the first prism sheet to the front side by refraction, and a micro lens film for refracting the light incident thereon from the second prism sheet. | 07-01-2010 |
20100165249 | Liquid crystal display device with a backlight unit having a diffusion plate - A liquid crystal display device having a direct backlight which uses a high-bright light source achieves both of a high efficiency and thin uniformity. In a liquid crystal display device which includes a liquid crystal panel, and a backlight unit which is arranged on a side of the liquid crystal panel opposite to a display screen of the liquid crystal panel, the backlight unit includes a housing, a plurality of light sources arranged in the inside of the housing, and a diffusion plate which is arranged between the plurality of light sources and the liquid crystal panel, the diffusion plate includes a plurality of light blocking regions at positions corresponding to the plurality of respective light sources, and the light blocking region at a center portion of the housing and the light blocking region at an edge portion of the housing exhibits transmissivities different from each other. | 07-01-2010 |
20100165250 | Liquid crystal display device with a backlight unit having a diffusion plate - A liquid crystal display device having a direct backlight which uses a high-bright light source achieves both of a high efficiency and thin uniformity. In a liquid crystal display device which includes a liquid crystal panel, and a backlight unit which is arranged on a side of the liquid crystal panel opposite to a display screen of the liquid crystal panel, the backlight unit includes a housing, a plurality of light sources arranged in the inside of the housing, and a diffusion plate which is arranged between the plurality of light sources and the liquid crystal panel, the diffusion plate includes a plurality of light blocking regions at positions corresponding to the plurality of respective light sources, and the light blocking region at a center portion of the housing and the light blocking region at an edge portion of the housing exhibits transmissivities different from each other. | 07-01-2010 |
20100182537 | INFORMATION PROCESSING APPARATUS - The present invention is directed to provide a convenient information processing apparatus capable of easily switching the view angle of a display device and an output of an illuminating device of the information processing apparatus in accordance with a using state and a user request. An information processing apparatus including a liquid crystal display device | 07-22-2010 |
20100182538 | LIQUID CRYSTAL DISPLAY DEVICE AND TELEVISION RECEIVER - A liquid crystal display device includes: (I) a liquid crystal panel including (i) a pair of substrates, which sandwich a liquid crystal layer, and (ii) optical members each provided so as to face an external surface of each of the pair of substrates, which surface is opposite to an internal surface of the each of the pair of substrates that faces the liquid crystal layer, the optical members each including a polarizer in pair; and (II) a backlight provided so as to face a surface of the liquid crystal panel, the surface being opposite to a display surface of the liquid crystal panel. The liquid crystal display device further includes a near-infrared region absorbing member that absorbs light in a near-infrared region of 900 nm to 1000 nm, the near-infrared region absorbing member being provided at least either in the liquid crystal panel or between the liquid crystal panel and the backlight. In a case where the near-infrared region absorbing member is provided in the liquid crystal panel, the near-infrared region absorbing member in the liquid crystal panel is at least one of the following members: (a) one of the pair of polarizers that faces the display surface of the liquid crystal panel, (b) one of the pair of substrates that faces the backlight, (c) one of the optical members that faces an external surface of the substrate that faces the backlight, which surface is opposite to an internal surface of the substrate that faces the liquid crystal layer, and (d) a pressure sensitive adhesive layer for adhering any one of the optical members. | 07-22-2010 |
20100188609 | ILLUMINATING LENS, AND LIGHTING DEVICE, SURFACE LIGHT SOURCE, AND LIQUID-CRYSTAL DISPLAY APPARATUS EACH USING THE SAME - An illuminating lens includes: a light entrance surface through which light emitted from a light source enters the lens; and a light exit surface through which the light that has entered the lens exits the lens. The light exit surface has: a concave portion intersecting the optical axis; and a convex portion provided around the concave portion to extend continuously from the concave portion. The light exit surface is formed in a shape such that a curvature C of micro-segments of the light exit surface in a cross section including the optical axis has a maximum value at a position outward from the midpoint of the convex portion. | 07-29-2010 |
20100195021 | OPTICAL MEMBER, LIGHTING DEVICE FOR DISPLAY DEVICE, DISPLAY DEVICE AND TELEVISION RECEIVER - An optical member | 08-05-2010 |
20100208165 | LIGHT CONTROL LAYER OF BACKLIGHT, BACKLIGHT, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR PRODUCING LIGHT CONTROL LAYER OF BACKLIGHT - A light control layer ( | 08-19-2010 |
20100208166 | ILLUMINATING LENS, LIGHTING DEVICE, SURFACE LIGHT SOURCE, AND LIQUID-CRYSTAL DISPLAY APPARATUS - A light exit surface of an illuminating lens has a first light exit surface and a second light exit surface. The first light exit surface is recessed toward a point on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region and a total reflection region. When the position of a light source on the optical axis is defined as a starting point, the transmissive region transmits light that has been emitted from the starting point at a relatively small angle with respect to the optical axis, and the total reflection region totally reflects light that has been emitted from the starting point at a relatively large angle with respect to the optical axis. A bottom surface that surrounds a light entrance surface and faces oppositely to the light exit surface is provided with a projecting portion or a recessed portion for reflecting light that has been emitted from the light source, totally reflected repeatedly at the light exit surface, and then reached the bottom surface. | 08-19-2010 |
20100208167 | ILLUMINATING LENS, LIGHTING DEVICE, SURFACE LIGHT SOURCE, AND LIQUID-CRYSTAL DISPLAY APPARATUS - An illuminating lens includes a main body and a ring portion. The main body has a light exit surface, and the light exit surface has a first light exit surface recessed toward a point on the optical axis and a second light exit surface extending outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region in the center thereof, and a total reflection region on the peripheral side thereof. The ring portion has a back surface configured to guide the light that has been emitted from a light source, totally reflected repeatedly at the light exit surface, and then entered the ring portion to an end surface by total reflection. | 08-19-2010 |
20100208168 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device which can reduce the number of cables so as to prevent the occurrence of the brightness irregularities. The liquid crystal display device includes a liquid crystal display panel and a backlight. The backlight includes an LED substrate on which a plurality of LEDs are mounted, a reflection sheet which is arranged on the LED substrate, a diffusion plate which is arranged in a spaced-apart manner from the LED substrate, side supports which support the diffusion plate at end portions of the LED substrate, connectors which are provided for electrical connection with an external device, and electronic parts which are electrically connected with at least one of these LEDs. The connectors and the electronic parts are mounted on the LED substrate below the side supports. The side supports exhibit higher light reflectance than the connectors and the electronic parts. | 08-19-2010 |
20100214507 | Back light unit and liquid crystal display comprising the same - Disclosed are a backlight unit capable of guiding light generated by LEDs to a light guide panel in order to eliminate brightness fault, as well as a light crystal display including the same. The backlight unit includes a light guide panel, an LED arranged at a lateral side of the light guide panel, and a light guide bar with at least one light diffusion pattern to scatter light generated by the LED and admit the scattered light into the light guide panel, thereby uniformly guiding the light generated by the LED to the light guide panel. | 08-26-2010 |
20100214508 | Backlight Unit and Liquid Crystal Display Device Using the Same - A backlight unit having a LED light source includes a light guide plate partitioned in areas each having a tapered shape formed of a thick portion and a thin portion. The light guide plate is formed such that a thick portion and a thin portion are repeated at certain intervals, and the repeated thick portions and the repeated thin portions gradually decrease in thickness. The LED light source is attached to a lateral side of each thick portion. Grooves are formed in the light irradiation direction of the LED light source and in a direction perpendicularly intersecting the light irradiation direction. Each of the grooves is formed in an concave shape (V-shape or trapezoid-shape). There is a relation 0.2/30<=W/D<0.1 where D denotes the distance between the light guide plate and a light diffusion plate, and W denotes the width of each of the grooves. An inclination angle θ relative to the center of each of the grooves is between 9 and 15 degrees inclusive. | 08-26-2010 |
20100220261 | PLANAR LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME - The present invention provides a planar lighting device ( | 09-02-2010 |
20100220262 | LINEARLY POLARIZED BACKLIGHT SOURCE IN CONJUNCTION WITH POLARIZED PHOSPHOR EMISSION SCREENS FOR USE IN LIQUID CRYSTAL DISPLAYS - A device for displaying images positions a luminescent material between a light source and a liquid crystal display (LCD). The light source, which comprises one or more nonpolar or semipolar III-nitride based light emitting diodes (LEDs), emits a primary light having a specified polarization direction and comprising one or more first wavelengths. This primary light emitted by the light source is a linearly polarized light that eliminates any need for a polarizer. The luminescent material, which comprises one or more phosphors, is optically pumped by the primary light and emits a secondary light having the polarization direction of the primary light, wherein the secondary light is comprised one or more second wavelengths that are different from the first wavelength. This secondary light emitted by the luminescent material is a colored light that eliminates any need for a color filter. The LCD receives the secondary light and displays one or more images in response thereto. | 09-02-2010 |
20100220263 | Light source, display device, portable terminal device, and ray direction switching element - A planar light source includes a backlight that emits light in a planar shape, a ray direction regulating element that regulates a direction of light made incident from the backlight and emits the light, whereby a directivity of the light is improved, and in which a transparent area for transmitting light and an absorption area for absorbing light are formed, and a transparent and scattering switching element that is switchable between a state in which light which is transmitted by the ray direction regulating element and made incident on the switching element is transmitted and a state in which the light is scattered. The transparent areas are formed in a shape of a matrix including a plurality of rows and a plurality of columns, the transparent and absorption areas are formed alternately, and the absorption area is formed so that the transparent areas are separated. | 09-02-2010 |
20100231826 | LIQUID CRYSTAL DISPLAY DEVICE - Provided is a liquid crystal display device with a backlight including a light guide plate. The light guide plate includes, a reflective polarizing plate for transmitting a P-polarized component and reflecting an S-polarized component, a reflector for reflecting the S-polarized component reflected by the reflective polarizing plate, and a polarization converting member for converting the S-polarized component to a P-polarized component. The reflective polarizing plate and the reflector are tilted at an angle such that reflecting surfaces thereof are not perpendicular to four sides of the liquid crystal display panel and are disposed such that the S-polarized component contained in a main component of light emitted from the light sources is reflected by the reflector. This keeps small the size of the liquid crystal display device and still improves reuse efficiency of the light emitted from the light sources. | 09-16-2010 |
20100238378 | Optical unit, backlight device, liquid crystal module and liquid crystal display apparatus - An optical unit for use in a backlight device of a liquid crystal display apparatus, includes a light-diffusing component to diffract incident light and a light-collecting component having multiple microlenses each having a shape of a hemisphere- or semi-oval-like protrusion on a light-emitting side of the light-collecting component. The components are provided in this order on an optical path of light emitted from a light source of the backlight device. The light-diffusing component includes a diffusing section having a first surface that faces the light source and an opposite second surface, and first and second prisms provided on the first and second surfaces, respectively. Each prism has a cross section like a teeth of a saw. Each first prism has a summit protruding towards the light source. Each second prism has a summit protruding in an opposite direction of the first prism. | 09-23-2010 |
20100238379 | COMPOSITE POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - There is provided a composite polarizing plate used for a liquid crystal display device comprising a liquid crystal cell, a front substrate, and a collimated light source device according to present invention includes a polarizer; and a light diffusion pressure-sensitive adhesion layer placed on a side of the polarizer, wherein when the composite polarizing plate is used for the liquid crystal display device, the light diffusion pressure-sensitive adhesion layer is arranged in contact with the front substrate. | 09-23-2010 |
20100245713 | LIGHT SOURCE DEVICE, BACKLIGHT DEVICE, AND LIQUID CRYSTAL DISPLAY - A light source device | 09-30-2010 |
20100245714 | PRODUCTION METHOD OF LIGHT SCATTERING FILM, LIGHT SCATTERING FILM, POLARIZING PLATE, IMAGE DISPLAY DEVICE, AND TRANSMISSIVE/SEMI-TRANSMISSIVE LIQUID CRYSTAL DISPLAY DEVICE - A method for producing a light scattering film is provided and includes: casting onto a support a dope containing at least a thermoplastic resin and light transmitting particles to provide a casted film, and peeling and drying the casted film to prepare a light transmitting base material; applying an coating solution containing at least a curable compound, a polymerization initiator, and a solvent onto the light transmitting base material and drying the solvent; and curing the curable compound to form a cured layer. At least one surface of the light transmitting base material has an asperity shape, the light transmitting particles have an average primary particle size greater than 2.5 μm but not greater than 12 μm, the cured layer has an average thickness of 0.1 μm or greater but not greater than 10.0 μm, and the cured layer satisfies the specific formulae. | 09-30-2010 |
20100245715 | METHOD OF MAKING ANTIGLARE FILM, ANTIGLARE FILM, POLARIZING PLATE, IMAGE DISPLAY DEVICE, AND TRANSMISSIVE/SEMI-TRANSMISSIVE LIQUID CRYSTAL DISPLAY - In a method for making an antiglare film including the casting, the releasing, the drying, the applying and the curing as defined herein, the transparent particles have an average primary particle size of greater than 2.5 μm and not greater than 12 μm, the transparent base has on at least one side thereof flat portions substantially parallel to a film-forming plane and rounded protrusions arising from the transparent particles, the protrusions having a maximum height Rt from the flat portions of from 1 to 15 μm, and the cured layer has an average thickness of from 1 to 15.0 μm and a surface profile with an arithmetic average roughness Ra, a mean spacing between peaks Sm, and an average slope θa, all as measured in accordance with JIS B0601, satisfying the relationships (1) to (3) as defined herein. | 09-30-2010 |
20100253880 | LIGHT GUIDE PLATE, SURFACE-EMITTING APPARATUS, LIQUID CRYSTAL DISPLAY APPARATUS, AND METHOD OF PRODUCING A LIGHT GUIDE PLATE - A light guide plate includes a light-incident surface, a light-reflecting surface, and a light-emitting surface. The light-reflecting surface includes a plurality of first light diffusion portions and a second light diffusion portion. The plurality of first light diffusion portions each have a first concavo-convex height. The second light diffusion portion has a second concavo-convex height lower than the first concavo-convex height and is extended around the plurality of first light diffusion portions in a net-like manner. The light-emitting surface emits light that enters from the light-incident surface and is reflected by the light-reflecting surface. | 10-07-2010 |
20100265434 | OPTICAL FILM, BACKLIGHT UNIT INCLUDING THE SAME AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - An optical film, a backlight unit having the same, and a liquid crystal display device having the same are disclosed. The optical film comprises a base film and a plurality of structures disposed on the base film, at least one of the structures comprising a plurality of beads with a diffusion portion having a first diameter and a transmission portion having a second diameter integrally formed with each other. | 10-21-2010 |
20100265435 | DISPLAY APPARATUS HAVING VARIABLE DIFFUSER FILM - In a display apparatus according to an embodiment, a variable diffuser film is disposed between a backlight unit generating light and a display panel displaying an image. The variable diffuser film transmits or scatters the light from the backlight unit in response to an electrical signal to control a viewing angle. The variable diffuser film is disposed between the first and second transparent layers and includes a polymer layer in which liquid crystal molecules transmitting or scattering the light according to the electrical signal are dispersed. The polymer layer has a thickness of about 3 micrometers to about 15 micrometers, and the liquid crystal molecules have an anisotropic refractive index (Δn) of about 0.15 to about 0.25. In one aspect, the display apparatus may automatically switch a narrow viewing angle mode and a wide viewing angle mode, thereby reducing power consumption necessary to switch the narrow and wide viewing angle modes. | 10-21-2010 |
20100277671 | Display Device - A cooling device is provided, where an LED backlight can be efficiently cooled in order to suppress display unevenness caused by heat generated from the LED backlight. In addition, a display device including the cooling device is also provided. A display device is provided, where the LED backlight can be cooled by arranging a coolant pipe on a back surface side of the LED backlight and supplying a coolant to a coolant pipe. Further, a display device is provided, where cooling efficiency of the LED backlight can be more improved by arranging a thermal conductor between the LED backlight and the cooling device. | 11-04-2010 |
20100277672 | ILLUMINATING LENS, AND LIGHTING DEVICE, SURFACE LIGHT SOURCE, AND LIQUID-CRYSTAL DISPLAY APPARATUS EACH USING THE SAME - An illuminating lens includes: a light entrance surface through which light emitted from a light source enters the lens; and a light exit surface through which the light that has entered the lens exits the lens. The light exit surface has: a concave portion intersecting the optical axis; and a convex portion provided around the concave portion to extend continuously from the concave portion. The light exit surface is formed in a shape such that a curvature C of micro-segments of the light exit surface in a cross section including the optical axis has a maximum value at a position outward from the midpoint of the convex portion. | 11-04-2010 |
20100283942 | ILLUMINATING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - An illuminator | 11-11-2010 |
20100289985 | ILLUMINATION UNIT AND DISPLAY DEVICE WITH THE ILLUMINATION UNIT - An illumination unit of the present invention includes: a light guide plate; a point light source for illuminating at least one side surface of the light guide plate; and an anisotropic light diffuser provided between the light guide plate and the point light source for diffusing light emitted from the point light source. The anisotropic light diffuser has anisotropy by which a degree of diffusion differs depending on directions. The anisotropic light diffuser is an anisotropic light diffusion sheet with a particulate dispersion phase defined in an anisotropic light diffusion layer thereof. | 11-18-2010 |
20100302479 | OPTICAL ARTICLE - The invention provides optical articles ( | 12-02-2010 |
20100309410 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A backlight unit adapted to enhance brightness and reduce manufacturing time and costs is disclosed. The backlight unit includes a bottom cover with an opened upper surface, a plurality of light emission diodes arranged on an inner edge of the bottom cover, a light guide plate disposed parallel to the plurality of light emission diodes, and a diffusion sheet disposed on the light guide plate. The diffusion sheet is provided to have an overlapped area with a support main which is combined with the bottom cover. Also, a reflection material layer is formed on an upper surface of the diffusion sheet corresponding to the overlapped area. | 12-09-2010 |
20100309411 | DIFFUSION SHEET AND METHOD OF MANUFACTURING THE SAME, BACKLIGHT, AND LIQUID CRYSTAL DISPLAY DEVICE - A diffusion sheet includes: a substrate having a first principal surface and a second principal surface; and structures each in a convex shape formed randomly on the first principal surface or the second principal surface of the substrate. The structures have an identical or almost identical height. The structures have an aspect ratio h/r, where r denotes an average radius of the structures and h denotes an average height of the structures, of more than 0.85 and not more than 1.50. The structures have a filling factor of not less than 60% and not more than 80%. | 12-09-2010 |
20100328578 | PASSIVE AND HYBRID DAYLIGHT-COUPLED N-STACK AND COLLAPSIBLE BACKLIGHTS FOR SUNLIGHT VIEWABLE DISPLAYS - A passive daylight-coupled display having an LCD panel, a diffuser, and a curved reflector behind the LCD panel. For passive backlighting, the diffuser transmits daylight to the reflector, which reflects the daylight to the LCD panel and provides for substantially uniform distribution of the daylight on the LCD panel for backlighting it. An N-stack daylight-coupled display includes a plurality of passive backlights cascaded in a stack for backlighting of LCD panels or static display panels. One N-stack display can include an active light source to provide light to the reflectors, and a secondary light source to provide light to at least one of the reflectors to provide backlighting of the display in low lighting conditions. A collapsible daylight-coupled display includes a daylight-coupled backlight that is collapsible when not in use for hand-held or portable display devices. | 12-30-2010 |
20100328579 | OPTICAL ELEMENT, AND BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - An optical element capable of improving a light diffusion effect while minimizing a damage of other members in the LCD due to an impact and so on, and a backlight unit and an LCD including the same. The optical element includes an optically-transparent base member; and a light-diffusing resin layer formed on one side of the base member. The light-diffusing resin layer has a plurality of concave recesses formed in a surface thereof to diffuse light. The optical element further includes an optical micro-structural layer formed on the opposite side of the base member. The second light-diffusing resin layer has a plurality of concave recesses formed in a surface thereof to diffuse light. | 12-30-2010 |
20100328580 | LIQUID CRYSTAL DISPLAY DEVICE - Disclosed is a liquid crystal display (LCD) device capable of enhancing brightness uniformity by preventing light leakage. The LCD device comprises an LC panel; an optical source for providing light to the LC panel; a light guide plate coupled to a light emission surface of the optical source; a light emitting diode (LED) printed circuit board (PCB) disposed on the light guide plate and the optical source; an optical sheet disposed on the light guide plate, and having a diffusion plate and a prism sheet on an upper surface of one side corresponding to the LED PCB, the diffusion plate having a light shielding member attached thereto; and a mold frame for accommodating therein the optical source, the light guide plate, and the optical sheet. | 12-30-2010 |
20110013119 | BACKLIGHT ASSEMBLY AND DISPLAY APPARATUS HAVING THE SAME - A backlight assembly includes a light source generating light and a first optical member diffusing the light. The first optical member includes a first diffusion member provided on an exit surface of the first optical member, from which the light exits, to diffuse the light. The first diffusion member includes a plurality of edges each having a curved shape and extending between the exit surface and a vertex of the first diffusion member. Accordingly, the light exiting through the exit surface is effectively diffused by the edges of the first diffusion member. | 01-20-2011 |
20110019129 | Display device - A liquid crystal display panel formed by using a TFT substrate and a color filter substrate is polished to decrease the thickness thereof so that it can be curved. The liquid crystal display panel and various optical sheets are sandwiched between a frame forming a curved surface and a light guide plate forming a curved surface, to thereby form a curved surface. An upper polarizer plate and a lower polarizer plate are, respectively, sandwiched between the surface cover and the liquid crystal display panel, and between the liquid crystal display panel and the optical sheet, and are not adhered or are partly adhered to the liquid crystal display panel. | 01-27-2011 |
20110025948 | Patterned volume diffuser elements - The present invention provides an optical diffuser element comprising a core layer and outer layers joined to the core layer, at least one of the outer layers comprising linear domains of varying diffusion and a continuous layer of uniform diffusion, and wherein at least one of the outer layers further comprises a microstructure pattern on its exterior surface opposite the core layer. | 02-03-2011 |
20110025949 | Backlight unit and liquid crystal display device having the same - A backlight unit capable of preventing a light leakage phenomenon caused by using a light guide plate of wedge type is disclosed. The backlight unit includes: at least one light source; a light guide plate configured to include a first portion with a first thickness disposed adjacent to the at least one light source, a second portion of plate shape having a second thickness thinner than the first thickness, and a wedge portion formed to connect the first and second portions and become gradually thinner from the first portion to the second portion; and a flexible printed circuit board loaded with the at least one light source and extended to cover the wedge portion of the light guide plate. The flexible printed circuit board is provided with a groove formed opposite a boundary area between the first portion and the wedge portion. | 02-03-2011 |
20110032453 | DIFFUSION SHEET AND LIQUID CRYSTAL DISPLAY DEVICE WITH THE SAME - A diffusion sheet adapted to minimize brightness difference between lights progressing in its oblique directions is discussed. The diffusion sheet according to an embodiment includes: a base film; a first diffusion material layer formed on an upper surface of the base film and configured to have a haze range of about 10˜40%; and a second diffusion material layer formed on a lower surface of the base film. | 02-10-2011 |
20110037925 | OPTICAL SHEET FOR CONTROLLING THE DIRECTION OF A LIGHT RAY - The present disclosure relates to an optical sheet for controlling the direction of light rays which is used for manufacturing backlight units of TFT-LCDs for computer monitors and televisions, and more specifically to an optical sheet which can uniformly diffuse light, improve brightness, and adjust viewing angle. There is provided an optical sheet for controlling the direction of light rays comprising a substrate film; a microlens group arranged on a first face of the substrate film; and a plurality of protuberances formed on a second face of the substrate film, wherein each protuberance comprises a reflective layer at the bottom thereof, and the plurality of protuberances comprise an aperture formed therebetween, and wherein a unit microlens of the microlens group has a first side and a second side with different radii of curvature from each other with respect to a light emission control part thereof. | 02-17-2011 |
20110037926 | LIGHT EMITTING DEVICE, DISPLAY DEVICE, AND COLOR CONVERSION SHEET - There is provided is a display device capable of suppressing deterioration of the color conversion layer which converts one color light into another color light, and realizing favorable handling and a display device using the color conversion layer, and a color conversion sheet. A phosphor sheet | 02-17-2011 |
20110043723 | Lighting Device for Liquid Crystal Screen - A lighting device for liquid crystal display provides as output a polarized extended light flux. It comprises a light source | 02-24-2011 |
20110051042 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device is provided in which, even when divided light guide plate blocks are thermally expanded or contracted as a result of a temperature change, the generation of clearances and mechanical deformations between such divided light guide plate blocks is prevented, making it possible to reduce the brightness unevenness of the liquid crystal display device. To realize the above feature, light guide plate blocks are arranged such that one or two of them are arranged in each horizontal row with only an upper side of each light guide plate block fixed to a chassis and, furthermore, such that the upper side fixed to the chassis of each light guide plate block is based on a center in the horizontal direction of the liquid crystal display panel so as to reduce the effects of thermal expansion and contraction of each light guide plate block. | 03-03-2011 |
20110051043 | BACKLIGHT UNIT AND DISPLAY DEVICE - A backlight unit and a display device including the backlight unit are discussed. According to an embodiment, a light generating device comprising: arrays of light source devices arranged on a first layer and including a first light source device and a second light source device configured emit light in opposite directions, at least one of the first and second light source devices including: a housing having inclined inner walls that define a cavity, a light emitting diode disposed in the cavity and configured to generate the light, and at least one material filled in the cavity; a reflection layer disposed on the first layer and configured to reflect the light emitted from the light source devices; and a second layer covering the light source devices and the reflection layer. | 03-03-2011 |
20110051044 | LIGHT QUANTITY CONTROL MEMBER, SURFACE LIGHT SOURCE UNIT AND DISPLAY DEVICE - A light quantity control member includes a light diffusion part formed by light diffusion members for diffusing light from a LED. The light diffusion part includes a first rectangular area positioned at the center of light flux from the LED and second rectangular areas positioned around the first rectangular area. The first rectangular area has an occupied area of the light diffusion members larger than any other second rectangular areas. If respective distances between a first center of the first rectangular area and respective second centers of the second rectangular areas are equal to each other, the occupied areas of the diffusion members of the second diffusion areas become equal to each other. The longer the distance between the first center of the first rectangular area and the second center of the second rectangular area gets, the smaller the occupied area of the light diffusion members of the second rectangular area becomes. | 03-03-2011 |
20110058124 | COMPOSITE OPTICAL DEVICE AND MONITOR - A composite optical device including pluralities of optical elements, pluralities of lighting devices, an emitting surface and a reflecting surface is provided. Each optical element including two first laterals, two second laterals, a third lateral and fourth lateral. The third lateral and the fourth lateral have a space respectively. The third lateral is adjacent to the fourth lateral of another optical element. Each lighting device is disposed inside the space. Whereby the third lateral and fourth lateral may receive the light energy of the lighting device and then the optical element delivers the light beam to the first lateral, the second lateral, the third lateral and the fourth lateral by means of the reflection of the reflecting surface. Finally, the light beam is output through the emitting surface. | 03-10-2011 |
20110058125 | LIGHT GUIDE ELEMENT, ILLUMINATION DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - A light guide element ( | 03-10-2011 |
20110075069 | LIQUID CRYSTAL DISPLAY DEVICE AND BACKLIGHT UNIT - Disclosed is a liquid crystal display including a liquid crystal panel, a light guide plate that transfers light from a light source to the liquid crystal panel and has a pattern formed on a base surface, a reflection plate that is positioned under the light guide plate and seated on a bottom cover, and a diffusing plate that is positioned between the light guide plate and the reflection plate and has a protection layer formed on a surface to face the light guide plate and a diffusing layer formed on the other surface to face the reflection plate. | 03-31-2011 |
20110075070 | LIQUID CRYSTAL DISPLAY DEVICE - A LCD device includes first and second LCD panels stacked one on another. Each of the first and second LCD panels includes a pair of transparent substrates, a liquid crystal layer sandwiched therebetween, and a pair of polarizing films sandwiching therebetween the pair of transparent substrates. A light diffusion layer having light diffusion function is interposed between the first LCD panel and the second LCD panel. The light diffusion layer reduces the intensity of the light passed by the first LCD panel, thereby alleviating the periodicity of the arrangement of dark areas and bright areas to alleviate the moire caused by light interference. | 03-31-2011 |
20110085110 | Compound diffusion plate structure, backlight module, and liquid crystal display - A liquid crystal display, comprising: a liquid crystal display panel and a backlight module. The backlight module comprising: a reflection unit, a light emitting unit, and a compound diffusion plate structure. The light emitting unit has a plurality of light emitting components installed within the installation space of the reflection unit. The compound diffusion plate structure is placed on one side of the light emitting unit, comprising: a body unit and a printing micro diffusion unit. The body unit has a main layer, and a plurality of micro diffusion particles formed inside the body unit, allowing light to diffuse within the body unit. The printing micro diffusion unit has a plurality of convex lens units formed on a light entrance plane or a light exit plane of the body unit by means of printing. | 04-14-2011 |
20110085111 | LIQUID CRYSTAL DISPLAY DEVICE AND ELECTRONIC APPARATUS - A liquid crystal display device includes: one side substrate; the other side substrate that is disposed to be opposed to the one side substrate; a liquid crystal layer that is sandwiched between the one side substrate and the other side substrate; and a light source that illuminates light on the liquid crystal layer from the outside of the other side substrate. At a specific peak wavelength, in a region shorter than a wavelength of blue light in a visible light region of the light illuminated from the light source, a transmittance from the other side substrate to the liquid crystal layer is smaller than a transmittance from the one side substrate to the liquid crystal layer. | 04-14-2011 |
20110090425 | OPTICAL DEVICE, UNIFORM ILLUMINATION DEVICE, OPTICAL SHEET, BACKLIGHT UNIT, AND DISPLAY UNIT - The present invention can provide an optical device, an optical uniform device, an optical sheet and a backlight unit and a display apparatus. In the present invention, a lamp image can be removed by uniformly emitting incident light from a plurality of light sources. Further, even if a distance between a light source and an optical device and between a light source and an optical uniform device are short, warpage due to heat generated from a light source does not occur. | 04-21-2011 |
20110096265 | BACKLIGHT UNIT AND DISPLAY DEVICE INCLUDING THE SAME - Provided is a backlight unit capable of increasing luminance and of reducing unevenness in luminance. The backlight unit includes: a light diffusing member provided to cover a light emitting element mounted on a surface of a substrate; and a first light reflective member having a hole portion opened larger in size than an outer shape of the light diffusing member, the first light reflective member being provided on the surface of the substrate while having the light diffusing member protrude from the hole portion. In addition, a second light reflective member is further provided on the surface of the substrate, and the second light reflective member covers at least a part of a region corresponding to a gap left between the light diffusing member and the hole portion of the first light reflective member. | 04-28-2011 |
20110096266 | SYSTEM AND METHOD FOR PROVIDING BACKLIGHTING IN LIQUID CRYSTAL DISPLAY (LCD) DEVICES - An exemplary display device is provided having increased brightness and light distribution uniformity, resulting in improved backlighting. The exemplary display device comprises a plurality of lamps arranged such that each of the lamps is substantially parallel with the others. The exemplary display device additionally comprises a holographic diffuser aligned so that a first diffusion axis diffuses light produced by the plurality of lamps in a first direction and a second diffusion axis diffuses light produced by the plurality of lamps in a second direction, the first direction being substantially perpendicular to the plurality of lamps and the second direction being substantially parallel to the plurality of lamps, wherein substantially more of the light produced by the plurality of lamps is diffused in the first direction. The diffusion of the light output produced by the plurality of lamps by the holographic diffuser creates the effect of a single uniform illumination source. | 04-28-2011 |
20110102709 | DIRECT TYPE BACKLIGHT MODULE AND APPLICATION THEREOF - A direct type backlight module and an application thereof are described. The direct type backlight module comprises a rear frame module and a light source, wherein the light source is deposed on the rear frame module. The rear frame module comprises a plurality of frameworks, wherein the frameworks are combined to form a frame. The direct type backlight module is suitable for applying in a liquid crystal display (LCD) device. | 05-05-2011 |
20110109842 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device of the present invention includes a liquid crystal display panel and a backlight for radiating light to the liquid crystal display panel. The backlight includes a hot-cathode tube (linear light source) ( | 05-12-2011 |
20110116012 | PASSIVE DAYLIGHT-COUPLED BACKLIGHT WITH TURNING FILM HAVING PRISMS WITH CHAOS FOR SUNLIGHT VIEWABLE DISPLAYS - A passive daylight-coupled display having an LCD panel, a diffuser, a turning film behind the LCD panel, and a curved reflector behind the turning film. For passive backlighting, the diffuser transmits daylight to the reflector, which reflects the daylight to the LCD panel through the turning film and provides for substantially uniform distribution of the daylight on the LCD panel for backlighting it. The turning film has prisms with chaos for an improved viewer experience. | 05-19-2011 |
20110116013 | LIQUID CRYSTAL MODULE AND ELECTRONIC DEVICE - A liquid crystal module according to an embodiment of the present invention includes a liquid crystal panel, a transparent panel member configured to include a display section constituting a display image plane while overlapping the liquid crystal panel, and a step section connected to the display section and lower than an image plane position by one step, at least one light source disposed in the step section of the transparent panel member, and a diffusion mechanism provided in a part other than the display image plane of the display section and a face opposite thereto, and diffusing light from the light source. | 05-19-2011 |
20110116014 | OPTICAL LAMINATE FILM, BACKLIGHT UNIT INCLUDING THE SAME, AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - An optical laminate film, a backlight unit, and a liquid crystal display module, the optical laminate film including a multilayer film composed of multiple layers including at least two polymers having different refractive indexes, the multilayer film transmitting only a light component vibrating in a direction parallel to one transmittance axis while reflecting other light components; an embossed diffusing film laminated on one side of the multilayer film, the embossed diffusing film having roughness on a surface thereof; and a microlens film laminated on another side of the multilayer film, the microlens film having microlenses arranged on a surface thereof. | 05-19-2011 |
20110134365 | LIQUID CRYSTAL DISPLAY DEVICE INCLUDING BACK LIGHT UNIT HAVING LED ARRAY - The present disclosure relates to a back light unit having an LED array structure for reducing light leakage problem at edge portion. A liquid crystal display device comprises a liquid crystal display panel; an optical sheet disposed under the liquid crystal display panel; and an LED array having red LED, green LED and blue LED are sequentially arrayed under the optical sheet, wherein one portion of an outermost LED of the LED array is included within an area covered by the liquid crystal display panel, and other portion of the outermost LED of the LED array is excluded from the area covered by the liquid crystal display panel. | 06-09-2011 |
20110134366 | Backlight Module and Display Device Having the Same - The present invention discloses a backlight module and a display device comprising the backlight module. The backlight module includes a light source, a light guide plate and a frame, wherein the light guide plate has a light entrance end and a first side. An angle is included between the light entrance end and the first side, wherein a plurality of light diffusing structures are formed on the light entrance end. The light source is disposed at a position corresponding to the light entrance end and emits a light toward the light diffusing structures. The frame has a first wall facing an inner surface of the first side. A centre line perpendicular to the light entrance end is defined on the light guide plate, wherein the distance between the inner surface and the centre line increases in a direction toward the light source. | 06-09-2011 |
20110134367 | POLARIZATION SHEET AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - Disclosed is a liquid crystal display device capable of enhancing luminance thereof, the device including a liquid crystal display panel for displaying an image; a light source for emitting light; a light guide plate for guiding the light emitted from the light source; an optical sheet above the light guide plate to enhance the efficiency of light input from the light guide plate; a polarization sheet above the optical sheet, the polarization sheet polarizing the light supplied to the liquid crystal display panel into a first polarizing direction and converting the light having a second polarizing component into the light having a first polarizing component to supply the light having the converted polarizing component into the liquid crystal display panel; and a polarizer onto the liquid crystal display panel to adjust transmittance of light transmitted through the liquid crystal display panel. | 06-09-2011 |
20110134368 | SYSTEM AND METHOD FOR PROVIDING BACKLIGHT USING A DIRECTIONAL REFLECTIVE SURFACE - The present embodiments are directed to a backlight illumination system. The backlight illumination system includes a light source adapted to uniformly emit light in numerous directions for illuminating a display unit. The backlight illumination system further includes a reflector disposed behind the light source, wherein the reflector is adapted to reflect the uniformly emitted light along a desired direction to provide backlight illumination to the display unit. | 06-09-2011 |
20110141397 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A backlight unit is provided. The backlight unit includes: a mold frame having a predetermined receiving space formed therein; a light guide plate disposed in the receiving space of the mold frame, and having an inclined surface formed on one side of the top surface so as to be inclined toward the inner side; a light source disposed between the light guide plate and the mold frame to emit light to the light guide plate; and a flexible printed circuit board, on which the light source is mounted, and which is supported in contact with the top surface of the light guide plate, wherein a stepped portion is formed on one end of the light guide plate, including a flat adhesion surface positioned at a height lower than one end face of the light guide plate. | 06-16-2011 |
20110141398 | TRANSFLECTIVE LIQUID CRYSTAL DISPLAY DEVICE - Discussed is a transflective liquid crystal display device, capable of improving luminance, the device including a liquid crystal display panel provided with first and second substrates, a plurality of pixel regions defined by a plurality of gate lines and data lines on the first substrate, a thin film transistor formed on each pixel region, a black matrix and a color filter layer formed on the second substrate, and a liquid crystal layer interposing between the first an second substrates, a first polarizer and a second polarizer disposed above and below the liquid crystal display panel, respectively, a backlight unit disposed below the second polarizer to emit light to the liquid crystal display panel, a selective reflection film disposed between the liquid crystal display panel and the second polarizer so as to reflect light incident from the exterior and transmit light emitted from the backlight unit, a first reflecting layer formed on at least one of the gate line and the data line of the liquid crystal display panel to reflect light input from the exterior. | 06-16-2011 |
20110141399 | TRANSPARENT DISPLAY DEVICE - Disclosed is a transparent display device that includes a LCD panel; a light source at one side of a lower portion of the LCD panel to emit light; a first polarizing plate polarizing light emitted from the light source; a light guide plate at a lower portion of the LCD panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface and supply to the LCD panel, and transmit natural light from a lower direction; a second polarizing plate at an upper portion of the LCD panel to control the amount of polarized light passing through the LCD panel; and an optical sheet at a lower portion of the light guide plate to change the polarized state of a first polarized light from the light guide plate and reflect the light, and transmit a second polarized component from the lower portion therethrough. | 06-16-2011 |
20110157518 | LIGHT SHAPING FILM AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME - A liquid crystal display device includes a liquid crystal panel; and a backlight unit providing a light to the liquid crystal panel, the backlight unit including: a light source under the liquid crystal panel; and first and second light shaping films between the light source and the liquid crystal panel, the first light shaping films including a first base layer and a plurality of first prism patterns, and the second light shaping films including a second base layer and a plurality of second prism patterns, wherein each of the first and second base layers has a haze, and the plurality of first prism patterns cross the plurality of second prism patterns. | 06-30-2011 |
20110157519 | LIGHT SOURCE APPARATUS AND DISPLAY APPARATUS USING LIGHT SOURCE APPARATUS - Disclosed is a light source apparatus including a light guide plate, a plurality of optical sheets and a frame, wherein one of the plurality of optical sheets is a prism sheet, the prism sheet having (i) a plurality of prisms formed on one surface thereof and (ii) one or more projecting pieces which are integrally formed with the prism sheet, the one or more projecting pieces engage to the frame, at least one of the one or more projecting pieces is a dark part suppressing projecting piece, sides making a pair of sides adjoining the dark part suppressing projecting piece are dark part suppressing sides, a first angle formed by the pair of dark part suppressing sides is equal to or smaller than a dark part suppressing angle, and second angles making a pair of angles formed with a straight line and each of sides making a pair of dark part suppressing sides are equal to or smaller than half of the dark part suppressing angle, the straight line (i) passing through a region formed between the pair of dark part suppressing sides, (ii) passing through an intersection point of the pair of dark part suppressing sides and (iii) being parallel or perpendicular to ridge lines of the prisms. | 06-30-2011 |
20110157520 | Liquid Crystal Display and Fabrication Method Thereof - A liquid crystal display and a fabrication method thereof are provided. The liquid crystal display includes a liquid crystal display panel having a plurality of pixels. A backlight module is disposed under the liquid crystal display panel. A lens is disposed between the liquid crystal display panel and the backlight module, having a plurality of optical structures formed on an upper surface and a lower surface thereof. The lens can disperse lights from the backlight module to form a plurality of chromatic light sources, wherein each chromatic light source is composed of colored lights with a continuous spectrum formed from a red light to a violet light and corresponds to each pixel. | 06-30-2011 |
20110176088 | LIGHT DIFFUSION MEMBER, BACK LIGHT ASSEMBLY INCLUDING THE SAME AND DISPLAY DEVICE INCLUDING THE SAME - The light diffusion member includes a light diffusing body and a light diffusing layer. The light diffusing body includes a polymer mixture obtained by uniformly blending a first polymer having a first glass transition temperature and a second polymer having a second transition temperature higher than the first transition temperature. Alternatively, the light diffusing body includes a copolymer prepared from the first and the second polymer. The light diffusing body diffuses an incident light through a light exiting surface. The light diffusing layer is formed on the light exiting surface of the light diffusing body and includes a binder resin having beads. A back light assembly including the light diffusion member and a liquid crystal display device including the light diffusion member exhibit an improved luminance and an improved light diffusing efficiency. | 07-21-2011 |
20110181810 | OPTICAL PATH UNIT AND LIQUID CRYSTAL DISPLAY DEVICE - An optical path unit and a liquid crystal display device excellent in luminance in the front direction are provided. A backlight unit | 07-28-2011 |
20110194049 | Backlight assembly and liquid crystal display including the same - A backlight assembly includes a light source, a light guide plate configured to receive and diffuse light emitted from the light source, and a mold frame including a central opening part configured to receive the light guide plate, an attachment opening part adjacent to the central opening part, the attachment opening part being configured to receive the light source, and a protrusion in the attachment opening part, the protrusion contacting the light source in the attachment opening. | 08-11-2011 |
20110205464 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A liquid crystal display includes a liquid crystal display panel, a backlight and a cover. The backlight includes optical sheets that are configured to be mounted to the cover using a plurality of holes provided on the optical sheet that material to corresponding protrusions provided on the cover. The holes and protrusions are configured to reduce damage or misalignment to the optical sheet that may be caused by heat generated inside the liquid crystal display. | 08-25-2011 |
20110234941 | LIGHT GUIDES - This invention relates to a light guide plate and methods of manufacture. The light guide plate is suitable for use in a range of applications, particularly those which require backlighting for display units, for example, liquid crystal displays. The light guide plate comprises a combination of light guide layers and one or more scattering features. | 09-29-2011 |
20110234942 | OPTICAL COMPONENT, LIGHTING DEVICE AND DISPLAY DEVICE - One embodiment of the present invention is an optical component, including a first main surface and a second main surface wherein a plurality of two-dimensionally arranged first convex parts are arranged on the first main surface, each of the first convex parts being independent and an aspherical micro lens having an approximate semispherical shape or an approximate elliptic semispherical shape, or having a rounded tip, and a plurality of second convex parts of the height of which is lower than the height of the plurality of the first convex parts, the second convex parts comprising a lens extending in a one dimensional direction, the lens being arranged in one or two directions. | 09-29-2011 |
20110249220 | IMAGE DISPLAY APPARATUS AND BACKLIGHT APPARATUS USED THEREFOR - A plurality of backlight blocks are aligned, each block includes light sources and a unit light guide plate for guiding light from the light sources to the side of a liquid crystal panel, unit diffusion patterns are formed in a zigzag alignment on the unit light guide plate and another diffusion pattern is formed on the back of the unit light guide plate. One side of the unit light guide plate is defined as a light entrance surface and LEDs as the light sources are aligned along the light entrance surface to satisfy p≧a≧c where a indicates the size of the unit diffusion pattern in a direction orthogonal to an exit optical axis of the LEDs, c indicates the size of an LED emission surface in the direction of alignment of the LEDs, and p indicates the pitch of alignment of the light sources. | 10-13-2011 |
20110255032 | Backlight Unit and Liquid Crystal Display Having the Same - A backlight unit for a liquid crystal display which can achieve substantially uniform luminance over the entire display screen includes: a light-guide plate guiding incident light and having a diffusion pattern for emitting light upward, the diffusion pattern being formed on at least one of upper and lower surfaces of the light-guide plate; and a point light source assembly disposed on at least one side portion of the light-guide plate, the point light source assembly including a plurality of point-light-source elements and a support substrate, in which the point-light-source elements are disposed on the support substrate and supply the light to the light-guide plate. An edge portion of one surface of the light-guide plate, which is adjacent to the point light source assembly, includes a first region corresponding to the point-light-source elements and a second region corresponding to a position between the point-light-source elements. The diffusion pattern may be formed in such a manner that the second region has a higher density than the first region. | 10-20-2011 |
20110261289 | HYBRID TYPE LIQUID CRYSTAL DISPLAY DEVICE - The present disclosure relates to a hybrid type liquid crystal display device. The present disclosure suggests a hybrid type liquid crystal display device comprising a liquid crystal display panel having a display area; and a window area defined within the display area, wherein an image disposed at outside of the liquid crystal display panel is shown in front of the liquid crystal panel through the window area. The present disclosure suggests a hybrid type display device in which main video data is represented using the liquid crystal display device, an additional image represented on an external screen is shown through the liquid crystal display device, or the external image can be shown by overlapping with the main video data of the liquid crystal display device, as needed. | 10-27-2011 |
20110261290 | DISPLAY APPARATUS - Provided is a display apparatus, which includes a display panel and a backlight unit. The backlight unit is disposed behind the display panel to provide light. The backlight unit includes a first layer, a light source, and a second layer. The light source is disposed on the first layer. The second layer includes a receiving part surrounding the light source, and is disposed on an upper side of the first layer to transmit and diffuse light emitted from the source. A space is disposed between the receiving part and the light source. | 10-27-2011 |
20110273643 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a liquid crystal panel; a side-lit backlight that emits light towards the liquid crystal panel through a light guide plate, the backlight further having a reflection layer that reflects light that has passed through the liquid crystal panel and the light guide plate in that order; a first λ/4 plate disposed between a first polarizer and the first substrate, the first λ/4 plate having a retarded phase axis that is at a 45° angle with the transmission axis of the first polarizer; a second λ/4 plate disposed between a second polarizer and the second substrate, the second λ/4 plate having a retarded phase axis that is at 45° with the transmission axis of the second polarizer and that is perpendicular to the retarded phase axis of the first λ/4 plate; and a diffusion layer disposed between the first λ/4 plate and the first substrate. | 11-10-2011 |
20110273644 | OPTICAL FILM AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING SAME - The present invention provides a liquid crystal display device comprising an optical film capable of impeding the occurrence of a failure of display quality at wide view angles, enhancing the front contrast and the transmission image definition, and impeding the occurrence of scintillation. On a substrate film | 11-10-2011 |
20110279751 | ILLUMINATING LENS, LIGHTING DEVICE, SURFACE LIGHT SOURCE, AND LIQUID CRYSTAL DISPLAY APPARATUS - An illuminating lens ( | 11-17-2011 |
20110279752 | OPTICAL FILM AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING SAME - The present invention provides an optical film which is capable of impeding the occurrence of a failure of display quality at wide view angles, impeding the occurrence of the degradation of the front contrast, achieving a high transmission image definition, and impeding the occurrence of scintillation, and a liquid crystal display device comprising the same. On a substrate film | 11-17-2011 |
20110285939 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention aims to provide a liquid crystal display capable of providing natural color display not tinged with red when viewed from an oblique front direction as well as when seen from a direct front direction. The liquid crystal display device of the present invention includes a light diffusing optical member ( | 11-24-2011 |
20110304798 | ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - An illumination device | 12-15-2011 |
20110310330 | THIN BACKLIGHT SYSTEM AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - According to a conventional backlight device for use in a thin full-color display device in which pixels are subjected to a color separation by colored lights, a large chromatic aberration occurs, thereby causing a deterioration in image quality. A thin backlight system in accordance with the present invention includes: a light emitting section ( | 12-22-2011 |
20110310331 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a liquid crystal display panel, a backlight unit providing light to the liquid crystal display panel, a bottom cover receiving the backlight unit, and at least one heat generation sheet disposed between the backlight unit and the bottom cover. The at least one heat generation sheet generates a radiant heat for increasing a surface temperature of the liquid crystal display panel. | 12-22-2011 |
20110317096 | PLANAR LIGHTING DEVICE AND LIQUID-CRYSTAL DISPLAY DEVICE WITH THE SAME - According to one embodiment, a planar lighting device includes a plurality of light sources, a light guide layer provided on a light-emission side of the light sources and configured to guide light from the light sources, and a reflective layer provided on an opposite side of the light guide layer to the light sources and through which a part of the light is transmitted. The light guide layer includes light-scattering properties for scattering light and is formed so that optical transmittance T based on the light-scattering properties is 40%≦T≦93%. | 12-29-2011 |
20110317097 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A backlight unit for a liquid crystal display (“LCD”) device includes a light emitting diode (“LED”) light source and a light conversion layer disposed separate from and above from the LED light source. The light conversion layer includes a semiconductor nano crystal, converts light emitted from the LED light source to white light and provides the white light to a liquid crystal panel of the LCD. | 12-29-2011 |
20110317098 | LIQUID CRYSTAL DISPLAY DEVICE AND FABRICATING METHOD THEREOF - A liquid crystal display device that reduces manufacturing cost, contributes to a thin profile, and generates uniform brightness, and a fabricating method thereof are disclosed. | 12-29-2011 |
20110317099 | LIGHT DIFFUSING ELEMENT, POLARIZING PLATE WITH LIGHT DIFFUSING ELEMENT, LIQUID CRYSTAL DISPLAY APPARATUS USING BOTH, AND MANUFACTURING METHOD FOR LIGHT DIFFUSING ELEMENT - There is provided a light diffusing element, which has a high haze value and strong diffusibility, has backscattering suppressed, and is low in cost and excellent in productivity. | 12-29-2011 |
20120002137 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device of an embodiment has: a semiconductor laser diode emitting a first laser beam; a first reflecting unit configured to reflect the first laser beam and form a second laser beam having a one-dimensionally spread distribution; and a second reflecting unit configured to reflect the second laser beam and form a third laser beam having a two-dimensionally spread distribution. The device also has: an optical switch using liquid crystal, the optical switch being configured to control passage and blocking of the third laser beam; and a first scattering unit scattering the third laser beam. | 01-05-2012 |
20120008066 | LIQUID CRYSTAL DISPLAY DEVICE - Provided is a liquid crystal display device, including: a liquid crystal panel including a display region for displaying an image; a linear illuminator disposed below the display region and extending linearly; and a diffusion plate disposed between the liquid crystal panel and the linear illuminator, in which the diffusion plate includes a thick portion which is formed to be thicker than another portion located below the display region, and the thick portion is formed opposing to the linear illuminator. | 01-12-2012 |
20120026427 | IMAGE DISPLAY APPARATUS AND METHOD OF ASSEMBLING THE SAME - In an image display apparatus, the diffusing plate includes a rectangular plate body section and diffusing plate projecting sections that project to an outside in parallel with a main surface of the body section. The diffusing plate projecting sections are provided at all perimeter sections that form four sides of a rectangular shape when the body section is viewed from a thickness direction Z thereof. Optical sheets have sheet projecting sections provided at perimeter sections that form two sides parallel to each other among four sides that are rectangular when the sheet body section is viewed from the thickness direction Z. At this time, one optical sheet has sheet projecting sections provided at perimeter sections that form two long sides of the sheet body section. The other optical sheet has sheet projecting sections provided at perimeter section that forms two short sides of the sheet body section. | 02-02-2012 |
20120026428 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device provided with a back light device can relieve lamp images without lowering the utilization efficiency of the light emitted from the back light device. | 02-02-2012 |
20120033157 | Backlight Unit and Liquid Crystal Module - A backlight unit disposed behind a liquid crystal panel | 02-09-2012 |
20120044440 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device provided with a back light device can relieve lamp images without lowering the utilization efficiency of the light emitted from the back light device. | 02-23-2012 |
20120057101 | LIGHT EMITTING DEVICE, SURFACE LIGHT SOURCE, AND LIQUID CRYSTAL DISPLAY APPARATUS - A light emitting device ( | 03-08-2012 |
20120062819 | LED CIRCUIT WITH ZENER DIODES - A light emitting diode (LED) circuit having a plurality of LEDs electrically connected in series with a zener diode electrically connected to each LED in parallel. If an LED were to fail, the current can be routed around the failed LED, through the zener diode, and continue through the rest of the LEDs in the series connection. Thus, a failure in one LED does not cause the entire series string to lose their illumination. Some embodiments may place several LED strings in parallel with one another. Exemplary embodiments may mount the LCDs on a metal core printed circuit board (PCB). Further embodiments may place a thin metallic sheet or metallic surface on the rear surface of the PCB and in thermal communication with the PCB and/or LEDs. | 03-15-2012 |
20120062820 | DIFFUSION SHEET, BACKLIGHT, LIQUID CRYSTAL DISPLAY APPARATUS AND METHOD OF MANUFACTURING DIFFUSION SHEET - A diffusion sheet includes a light-transmissive base member, a plurality of structures, and a flattened portion. The light-transmissive base member has a first main surface and a second main surface. The plurality of structures have convex shapes, which are randomly formed on the first main surface. The flattened portion is formed among the plurality of structures on the first main surface and has a surface roughness (Ra) equal to or lower than 0.6 μm. | 03-15-2012 |
20120069272 | LIQUID CRYSTAL DISPLAY DEVICE - The backlight has an anisotropic diffusion sheet disposed between the reflective polarizing plate and the optical path converter. The anisotropic diffusion sheet includes a refractive index anisotropic diffusion sheet stretched in an absorption axis direction in which a concave-convex portion is formed on a surface of the reflective polarized plate, and an isotropic material part laminated on a surface of the concave-convex part. The isotropic material part has an isotropic reflective index. The refractive index of the isotropic material part is the same as the refractive index in the transmission axis direction perpendicular to a stretching direction of the refractive index anisotropic sheet. | 03-22-2012 |
20120069273 | DISPLAY DEVICE - A direct-viewing type display device ( | 03-22-2012 |
20120081635 | Light diffusing film, polarizing plate, liquid crystal display device and production method of light diffusing film - A light diffusing film contains a thermoplastic resin as the main component and contains, in the thermoplastic resin, at least one kind of a light-transmitting particle having an average primary particle diameter of 3 to 10 μm, wherein the absolute value of the refractive index difference between the thermoplastic resin and the light-transmitting particle is from 0.01 to 0.06, wherein one surface has concavoconvex shape, the total haze value is from 15 to 30%, the internal haze value is from 5 to 25%, the surface haze value is from 5 to 20%, and the average film thickness is from 20 to 200 μm. | 04-05-2012 |
20120099049 | Backlight and Display Device - A backlight of which power consumption can be reduced is provided. Further, by effective use of light emitted from the backlight, a display device with low power consumption is provided. The display device includes a light source device in which a plurality of light-emitting elements are arranged, a diffusion plate which is bonded to the light source device, a first polarizing plate which is bonded to the diffusion plate, a liquid crystal panel which is bonded to the first polarizing plate, and a second polarizing plate which is bonded to the liquid crystal panel. The light source device includes an organic resin having a projected spherical surface and a light-transmitting property covering each of the plurality of light-emitting elements and an organic resin having a planarized surface and a light-transmitting property covering the plurality of light-emitting elements and the organic resin having a projected spherical surface and a light-transmitting property. | 04-26-2012 |
20120099050 | ILLUMINATION DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER - A backlight unit ( | 04-26-2012 |
20120105769 | LIGHT DIFFUSING FILM, POLARIZING PLATE, IMAGE DISPLAY DEVICE AND PRODUCTION METHOD OF LIGHT DIFFUSING FILM - A light diffusing film contains a thermoplastic resin as the main component and containing, in the thermoplastic resin, (A) a light-transmitting particle having an average primary particle diameter of 1 to 10 μm, wherein there is substantially no refractive index difference between the thermoplastic resin and the light-transmitting particle, wherein one surface has concavoconvex shape, the total haze value is from 5 to 40%, and the average film thickness is from 20 to 200 μm. | 05-03-2012 |
20120105770 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE - A backlight module is provided and the backlight module comprises a back plate, a frame, a light source, and a diffusion plate, wherein the diffusion plate is connected with and fixed to the frame or the back plate by hold structures that impose a tension effect on the diffusion plate. Also, a liquid crystal display device comprising the backlight module is provided. | 05-03-2012 |
20120113357 | Transmissive Liquid Crystal Display with Reflective Mode - Method, system and device for a transflective liquid crystal display with both transmissive and reflective functions is realized by using a transflective component into a transmissive LCD. The transflective component can be a transparent substrate with patterned reflectors on one surface and repetitive patterned lenses or prisms formed on the opposite surface facing the backlight unit. The transparent areas substantially allow the optical beams to pass through. The light from the backlight is refracted or focused by the optical structures onto the transparent areas or apertures of other surface, thus a substantial amount of backlight transmits to the LC for light modulation for different gray levels. For the incident ambient light incident on the transflective component, the majority is reflected back to the viewer by the reflectors on the transflective component, and the remainder transmits the transflective component to the backlight unit and be recycled to be used again. | 05-10-2012 |
20120127398 | BACKLIGHT SYSTEM AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A backlight system includes: a light-emitting section ( | 05-24-2012 |
20120133862 | LIGHT DIFFUSER FILM AND LIQUID CRYSTAL DISPLAY PANEL USING THE SAME - The present invention discloses a light diffuser film including a transparent thermoplastic resin, the light diffuser film having an embossed pattern on at least one side thereof, the embossed pattern having an average roughness (Ra) of about 1.5 μm or less, and a peak count (Rpc) of about 100 peaks/cm or more. | 05-31-2012 |
20120140148 | LIQUID CRYSTAL DISPLAY PANEL, METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY PANEL, AND LIQUID CRYSTAL DISPLAY DEVICE - A wire grid polarizer (WG) has (i) a region where linear conductive wires are regularly repeated at a constant pitch (P) and (ii) a region (A) where linear conductive wires are at a pitch larger than the constant pitch (P). The region (A) where the linear conductive wires are at a pitch larger than the constant pitch (P) and a black matrix ( | 06-07-2012 |
20120147292 | BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY APPARATUS USING THE SAME, AND LIGHT-EMITTING DIODE USED THEREFOR - There are provided light-emitting layer provided on transparent substrate and emitting light of a specific wavelength, mirror layer formed on a light exit side of light-emitting layer and including a function of reflecting light emitted from light-emitting layer, reflecting layer provided on a side of substrate in a manner to interpose light-emitting layer between mirror layer and reflecting layer; and a diffusion layer that diffuses light emitted from light-emitting layer is disposed between mirror layer and reflecting layer. | 06-14-2012 |
20120154712 | LIQUID CRYSTAL DISPLAY DEVICE AND BACKLIGHT MODULE THEREOF - A liquid crystal display (LCD) device includes an LCD panel, a backlight module and an anti-reflective layer. The backlight module further includes a light source for providing lights, a light guide plate having a light-emitting surface and a lower surface opposite to the light-emitting surface, and a first prism layer and a second prism layer positioned on a side of the light-emitting surface. The anti-reflective layer is positioned between the first prism layer and the second prism layer, or is positioned between the first prism layer and the LCD panel. | 06-21-2012 |
20120154713 | LIQUID CRYSTAL DISPLAY - A liquid crystal display including: a liquid crystal panel including front and rear glass substrates, a plurality of liquid crystal sub-pixels for red, green, and blue respectively corresponding to three color, i.e., red, green, and blue, lights, and disposed between the front and rear glass substrates, and a color filter disposed between the plurality of liquid crystal sub-pixels and the front glass substrate; a backlight unit disposed behind the liquid crystal panel, and including a plurality of three color light suppliers spaced apart from each other in groups and supplying the three color lights; and a lenticular lens array disposed between the backlight unit and the liquid crystal panel, and inducing the three color lights emitted from the three color light suppliers to the liquid crystal sub-pixels and the color filter of the liquid crystal panel. According to the liquid crystal display, the lenticular lens array is attached to the liquid crystal panel so as to induce red, green, and blue lights respectively to red, green, and blue color filters inside the liquid crystal panel, thereby increasing light transmittance and decrease light loss. Accordingly, power consumption of the liquid crystal display is reduced, the liquid crystal display realizes high resolution, and manufacturing expenses of the liquid crystal display are reduced. | 06-21-2012 |
20120212689 | DISPLAY BACKLIGHT MODULE AND METHOD FOR THE SAME - Disclosed are a display backlight module and its manufacturing method. A multilayer reflector is particularly introduced into the display backlight module for a LCD display. The multilayer reflector is composed of a plurality of inter-stacked polymer films with various indexes of refraction. With introduction of interference principle, the multilayer reflector is designed to reflect or transmit the light with a specific wavelength range for acquiring a more uniform backlight. According to one of the embodiments, the display backlight module includes a backlight module, such as a direct-type or an edge-type light source. The module further includes the multilayer reflector and an optical-film module. This optical-film module optionally includes a brightness-enhancement film and a diffuser. | 08-23-2012 |
20120212690 | BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY - A backlight device includes a housing, a light source, a diffuse plate and a fixing member. The housing has an open surface. The light source is arranged in the housing. The diffuser plate is arranged on the open surface of the housing and allows light emitted from the light source to pass therethrough while diffusing the light. The fixing member prevents the diffuser plate from bending in a direction in which light passes through the diffuser plate. A part of the fixing member has transmittance adjusted to substantially equalize luminance distribution of light passed through the diffuser plate. | 08-23-2012 |
20120224121 | High Dynamic Range Displays Using Filterless LCD(s) For Increasing Contrast And Resolution - A display provides increased contrast and resolution via first LCD panel energized to generate an image and a second LCD panel configured to increase contrast of the image. The second panel is an LCD panel without color filters and is configured to increase contrast by decreasing black levels of dark portions of images using polarization rotation and filtration. The second LCD panel may have higher resolution than the first LCD panel. A half wave plate and/or film is placed in between the first and the second panel. The panels may be directly illuminated or edge lit, and may be globally or locally dimmed lights that may also include individual control of color intensities for each image or frame displayed. | 09-06-2012 |
20120229730 | LIQUID CRYSTAL DISPLAY - Disclosed is a liquid crystal display including: a liquid crystal panel; and a backlight unit disposed below the liquid crystal panel and irradiating light to the liquid crystal panel, in which the backlight unit includes a reflective layer increasing an amount of light irradiated to the liquid crystal panel. | 09-13-2012 |
20120242934 | BACKLIGHT SOURCES HAVING REDUCED THICKNESS AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A backlight source and a thinning method for the same are provided. The backlight source includes: a solid state light source array having a plurality of solid state light sources ( | 09-27-2012 |
20120257142 | PHOTOCONDUCTIVE SWITCHING ELEMENT, PHOTOCONDUCTIVE SWITCHING ELEMENT ARRAY, DISPLAY DEVICE, AND IMAGE FORMING APPARATUS - A photoconductive switching element includes a first electrode, a second electrode that is arranged so as to face the first electrode, and a photoconductive layer that is arranged between the first electrode and the second electrode and realizes conductivity by receiving light. The photoconductive layer includes a first electric charge generating layer and a second electric charge generating layer that generate electric charge when light is received and an electric charge transport layer which is brought into contact with the first electric charge generating layer and the second electric charge generating layer and to which the electric charge can be moved. The first electric charge generating layer and the second electric charge generating layer are arranged at mutually-different positions in a direction perpendicular to a thickness direction of the electric charge transport layer and at mutually-different positions in the thickness direction of the electric charge transport layer. | 10-11-2012 |
20120257143 | DIFFUSER FOR LIGHT FROM LIGHT SOURCE ARRAY AND DISPLAYS INCORPORATING SAME - An optical structure placeable between a backlight array of point light sources and a planar display. The structure distributes light emitted by the point light sources to uniformly illuminate the plane of the display, without introducing significant viewing parallax. The emitted light is partially collimated within a preferred angular viewing range, maximizing the display's luminance when viewed from the normal direction. The structure is highly reflective, such that a substantial portion of any non-emitted light rays are internally reflected by the structure, increasing the likelihood that those rays will be subsequently emitted by the structure. | 10-11-2012 |
20120262645 | Backlight Module and Liquid Crystal Display Employing Same - An exemplary backlight module includes two light guide plates, two first light sources, a diffusing plate, and a second light source. The two light guide plates are arranged apart from each other, and each of the light guide plates includes a first side surface and a second side surface. The first side surface is adjacent to the other light guide plate. The second side surface is opposite to the first side surface and is away from the other light guide plate. The two first light sources are arranged adjacent to the second side surfaces of the two light guide plates, respectively, and provide first light beams for the two light guide plates, respectively. The diffusing plate is arranged between the first side surfaces of the two light guide plates. The second light source is arranged below the diffusing plate and provides second light beams for the diffusing plate. | 10-18-2012 |
20120262646 | POLARIZING DIFFUSER FILM, METHOD OF MANUFACTURING POLARIZING DIFFUSER FILM, AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING POLARIZING DIFFUSER FILM - Disclosed are a film with excellent polarization selectivity and excellent diffusion properties, and a means for easily producing the same. The polarizing diffusion film has an intrinsic birefringence of at least 0.1 and substantially comprises one type of crystalline resin; and in the polarizing diffusion film, the total light transmittance is 50 to 90% in relation to visible light, the transmission haze is 15 to 90% in relation to visible light, and the degree of transmission polarization is 20 to 90% in relation to visible light. | 10-18-2012 |
20120268689 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device ( | 10-25-2012 |
20120268690 | LIQUID CRYSTAL DISPLAY WITH NARROW ANGULAR RANGE OF INCIDENT LIGHT - A liquid crystal display includes a liquid crystal panel in the pixel electrode and common electrodes formed within a pixel comprise repeating structures. The angular range of light incident from the light source is narrower along a direction of the repeating structures than along an orthogonal direction. | 10-25-2012 |
20120287375 | SURFACE LIGHT SOURCE DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, AND LENS - The present invention relates to a surface light source, including a light source section made up of plural light emitting diodes and lenses that expand light from these light emitting diodes. The lens in the light source section has a light incident surface on which light from the light emitting diode is incident with an optical axis at a center, and a light exit surface that expands and emits the incident light. The light incident surface has a continued depressed surface, while the light exit surface has a continued projected surface. The lens performs such that “sag Y” decreases from a maximum value “sag Y | 11-15-2012 |
20120287376 | Backlight Module and Liquid Crystal Display Device - A backlight module is disclosed in the present disclosure. The backlight module comprises a reflective sheet, a printed circuit board (PCB), a diffuser plate and a supporting structure. The reflective sheet is attached onto the PCB, and the supporting structure is located between the diffuser plate and the reflective sheet. The supporting structure comprises a body portion and a supporting portion, and the PCB comprises an adapter member. By using the adapter member and the supporting structure in the backlight module of the present disclosure, the supporting structure can make contact with the PCB in a large area and support the diffuser plate stably. Further, a liquid crystal display (LCD) device using the backlight module described above is also disclosed in the present disclosure. | 11-15-2012 |
20120307180 | OPTICAL FILM AND METHOD FOR MANUFACTURING THE SAME AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - An optical film is provided. The optical film includes a substrate, a first transmission medium, second transmission medium, and a reflective polarizing film. The first transmission medium is disposed at the front surface of the substrate and includes a plurality of embossed microlenses. The second transmission medium is disposed at the rear surface of the substrate and comprises a plurality of V-shaped prisms. The reflective polarizing film is disposed at the front surface of the first transmission medium. The substrate, the first transmission medium, and the second transmission medium are bounded to each other to form a unitary sheet. | 12-06-2012 |
20120307181 | DISPLAY DEVICE AND BACKLIGHT MODULE THEREOF - A display device and a backlight module are provided in the present invention. The display device includes the backlight module and a liquid crystal display panel. The backlight module, which is used to provide a backlight source for the liquid crystal display panel, includes a luminant device and a micro-lens array. The luminant device is disposed under the liquid crystal display panel, and the luminant device has a plurality of first luminant regions and a plurality of second luminant regions. The micro-lens array is disposed between the luminant device and the liquid crystal display panel. The micro-lens array includes a plurality of micro-lenses, and each of the micro-lenses overlaps at least one first luminant region and at least one second luminant region in a direction perpendicular to the liquid crystal display panel. | 12-06-2012 |
20120320309 | LIGHT EMITTING MODULE, SURFACE LIGHT SOURCE, LIQUID CRYSTAL DISPLAY, AND ILLUMINATING DEVICE - The purpose of the present invention is providing a light emitting module capable of emitting illumination light having a nearly uniform color tone as a whole. The invention also provides a surface light source having such light emitting modules, and a liquid crystal display and an illuminating device having such a surface light source. | 12-20-2012 |
20120320310 | LIGHTING DEVICE, DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - A lighting device includes a light source | 12-20-2012 |
20130002982 | LIQUID CRYSTAL DEVICE, ELECTRONIC APPARATUS AND LIGHTING DEVICE - In a liquid crystal device, when the local dimming is adopted, at a light guide plate of a lighting device, light guide plate portions having a trapezoidal planar shape where two sides facing each other in the Y-axis direction have different lengths are arranged in the X-axis direction to have reverse orientations in the Y-axis direction. A light emitting element emits the light of a light source from the end surface of the light guide plate portion which is located at a short side into the light guide plate portion. A light scattering surface is installed at the space between the light guide plate portions. | 01-03-2013 |
20130002983 | Backlight Device, Liquid Crystal Display Apparatus, and Lens - Provided is a backlight device having: a light source element having LEDs and a lens expanding light from the LEDs; a housing containing the element; a diffuser plate covering an opening portion of the housing; and a reflection sheet reflecting light emitted from the element, toward the diffuser plate. The LEDs are arranged in one or more rows, at a central zone. The lens has an incident surface receiving light from the LEDs, and an exit surface from which the light goes out, being expanded. In the exit surface, in an optical-axis-containing sectional plane viewed laterally along the orientation in which the LEDs are arrayed, the len's curvature C in a minute interval along the exit surface is maximum in a range 60°<θ | 01-03-2013 |
20130010230 | Backlight Device and Liquid Crystal Display Apparatus - Provided is a backlight device having: a light source element having LEDs and a lens expanding light from the LEDs; a housing containing the light source element; a diffuser plate covering an opening portion of the housing; and a reflection sheet reflecting light emitted from the light source element, toward the diffuser plate. The LEDs are arranged in one or more rows, at a central zone. The lens has an incident surface receiving light from the LEDs, and an exit surface from which the light goes out, being expanded. The reflection sheet is configured such that the angle between the optical axis of the lens of the light source element, and a line connecting a light emitting surface of each LED of the light source element and an end portion of the backlight device on the long side thereof is within a range of 60°≦θm≦80°. | 01-10-2013 |
20130010231 | Backlight Device and Liquid Crystal Display Apparatus - Provided is a backlight device having: a light source element having light emitting diodes and a lens expanding light from the light emitting diodes; a housing containing the light source element; a diffuser plate covering an opening portion of the housing; and a reflection sheet reflecting light emitted from the light source element, toward the diffuser plate. In the light source element, a plurality of the lenses are arranged at a central zone, the plurality of lenses being arranged in a plurality of rows. | 01-10-2013 |
20130010232 | LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS COMPRISING THE SAME - According to one embodiment, a lighting device includes a radiation surface, at least one light source provided to face the radiation surface, and an optical control member provided between the radiation surface and the light source and includes optical characteristics of transmission, diffraction, diffusion, and reflection, which vary for regions in the optical control member, a distribution of each of the optical characteristics being determined by positions relative to the at least one light source. The optical control member is formed in a sheet shape which is controlled by at least one of a reflective film having a reflection factor distribution, and a reflective film having a numerical aperture distribution, and lenses. | 01-10-2013 |
20130033660 | LIQUID CRYSTAL DISPLAY MODULE - A Liquid Crystal Display (LCD) module for preventing a hot spot that deteriorates an external appearance quality using existing components is provided. The LCD module includes an optical sheet disposed at an upper surface of a light guide plate, a Light Emitting Diode Flexible Printed Circuit Board (LED FPCB) on which an LED for emitting light to the light guide plate is mounted, and a double-sided tape having a portion protruding toward the optical sheet further than the LED FPCB and adhered to a mounting surface of the LED FPCB. Therefore, occurrence of a hot spot can be reduced without increasing components. Further, because a thickness increase of a local portion is unnecessary, a second failure such as panel lifting is not caused. | 02-07-2013 |
20130038815 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display device which uses a white LED as the light source, in order to avoid/suppress the reduction in the speed of response of the liquid crystal while increasing the color reproducibility and red chromaticity without the use of a special purpose color filter, a band cut filter which absorbs the wavelength component neighboring orange in light that is transmitted is provided between the liquid crystal display and the backlight unit. | 02-14-2013 |
20130044278 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display device, display with a wide viewing angle and high color reproducibility is achieved and superior contrast is obtained. In addition, a viewing angle is enlarged without using a retarder. The liquid crystal display device comprises a liquid crystal cell | 02-21-2013 |
20130050615 | LOCAL DIMMING BACKLIGHT UNIT AND DISPLAY DEVICE INCORPORATING SAME - A backlight unit includes a light source and at least one modular light guide plate (LGP) element that guides light from the light source. The modular LGP element has a first surface and a plurality of pins integrally formed with and protruding from the first surface. A back plate portion has a plurality of receptacles for receiving the plurality of pins of the modular LGP element to fix the modular LGP element to the back plate portion. A backlight includes a plurality of the described backlight units, wherein the modular LGP elements are arranged in a two dimensional array, and the back plate portions form a common back plate to which the modular LGP elements are fixed. The backlight including the described backlight units may be incorporated into a liquid crystal display device. | 02-28-2013 |
20130057806 | LIQUID CRYSTAL DISPLAY DEVICE - The liquid crystal display device includes a liquid crystal cell, a backlight device, a first light diffusing layer, a first polarizer, and a second light diffusing layer. The first light diffusing layer includes a light diffusing plate and a prism sheet, and has light distribution characteristics such that a luminance value in a direction of 70 degrees with respect to a normal of a light incidence plane of the liquid crystal cell is 20% or less with respect to a luminance value in a direction of the normal. The second light diffusing layer includes a second polarizer and a light diffusing membrane. The backlight device is divided into a plurality of regions and is capable of controlling luminance per region. | 03-07-2013 |
20130063681 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY - A backlight module is disclosed, comprising a light guide plate and light sources, where the light guide plate comprises lateral incident faces, an exit face that joins the lateral incident faces, and an underside that corresponds to the exit face. The light sources each comprises an emitting surface, is disposed near one side of one lateral incident face of the light guide plate, and corresponds to the lateral incident face of the light guide plate with the emitting surface. The backlight module further comprises diffusion strips, where the diffusion strips each is disposed in between one lateral incident face of the light guide plate and the emitting surface of the light source, and the light rays emitted from the emitting surface of the light source pass the diffusion strip and diffuse into the light guide plate. This invention further discloses a liquid crystal display. | 03-14-2013 |
20130077025 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A backlight module and a liquid crystal display device using the same are provided. The backlight module comprises a back plate, and an upper surface of the back plate is an uneven surface. The uneven surface is composed of a plurality of protruded portions and a plurality of indented portions formed on the upper surface of the back plate; or, the uneven surface is composed of a matte surface formed on the upper surface of the back plate. A light emitting source coordinating with the back plate is disposed above the back plate, and faces the uneven surface to emit light. | 03-28-2013 |
20130083269 | Compound Optical Diaphragm, Backlight Module and Liquid Crystal Display Device - The present invention discloses a compound optical diaphragm, a backlight module and a liquid crystal display (LCD) device; the compound optical diaphragm comprises at least two cross brightness enhancement films (BEF*2), wherein a DF with high forward penetration rate is attached to the BEFs. The forward penetration rate of the DF with high forward penetration rate is more than 85% and less than 95%. In the present invention, by completely studying the relationship between the forward penetration rate of the DF and the luminance gain of the overall optical diaphragm in the structure formed by the DF and the cross BEFs, the appropriate range of the forward penetration rate of the DF with high forward penetration rate is determined; the optical effect of the DF is guaranteed; the luminance gain of the compound optical diaphragm is obviously increased; and the appropriate luminance of the backlight module is achieved. | 04-04-2013 |
20130100380 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A backlight unit for a liquid crystal display which can achieve substantially uniform luminance over the entire display screen includes: a light-guide plate guiding incident light and having a diffusion pattern for emitting light upward, the diffusion pattern being formed on at least one of upper and lower surfaces of the light-guide plate; and a point light source assembly disposed on at least one side portion of the light-guide plate, the point light source assembly including a plurality of point-light-source elements and a support substrate, in which the point-light-source elements are disposed on the support substrate and supply the light to the light-guide plate. An edge portion of one surface of the light-guide plate, which is adjacent to the point light source assembly, includes a first region corresponding to the point-light-source elements and a second region corresponding to a position between the point-light-source elements. The diffusion pattern may be formed in such a manner that the second region has a higher density than the first region. | 04-25-2013 |
20130114021 | SURFACE LIGHT SOURCE AND LIQUID CRYSTAL DISPLAY DEVICE - A light emitting device including a lens in which light radiated from a light source with a wide angle can effectively be oriented while a directional characteristic of the light source is expanded is provided, and a surface light source including the light emitting devices and a liquid crystal display device are provided. The surface light source is configured such that the plural light emitting devices are disposed in a central portion thereof. The light emitting device radiates the light on an optical axis A and around the optical axis A. The light emitting device includes a light source and a lens that radially expands the light from the light source. The lens includes a reflection unit at a bottom surface of the lens partially. | 05-09-2013 |
20130114022 | LIGHT EMITTING DEVICE, SURFACE LIGHT SOURCE, LIQUID CRYSTAL DISPLAY DEVICE, AND LENS - A light emitting device includes plural light emitting diodes and plural lenses each of which expands the light from the light emitting diode. The lens includes an incident surface through which the light from the light emitting diode is entered at an optical axis and around the optical axis, and an output surface from which the incident light is output while radially expanded. The incident surface includes a continuous concave surface, the output surface includes a continuous convex surface, and the lens has different refractive powers in a first direction orthogonal to the optical axis and in a second direction orthogonal to the optical axis and the first direction. | 05-09-2013 |
20130120689 | SURFACE LIGHT SOURCE AND LIQUID CRYSTAL DISPLAY DEVICE - The light emitting device radiates light at an optical axis A and around the optical axis A, and includes a light source and a lens radially expanding the light from the light source. The light source includes a light emitting element and a fluorescent material covering the light emitting element and has an emission surface orthogonal to the optical axis. The lens is configured such that a refractive power in a first direction orthogonal to the optical axis differs from a refractive power in a second direction orthogonal to the optical axis and the first direction. An incident surface of the lens may include an anamorphic curved surface in which a curved shape in the first direction differs from a curved shape in the second direction. | 05-16-2013 |
20130128188 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE USING SAID BACKLIGHT UNIT - In the disclosed backlight unit, multiple LEDs are arranged as a light source at prescribed intervals on a substrate in a rectangular ring. Light irradiated from the LEDs is diffused through a lens, a prism plate and a diffusion plate, and is transmitted to a liquid crystal panel. There are roughly V-shaped concavities in the incidence surface of the lens, and triangular cross-section prisms for diffusing incident light are further arranged on the incidence surface of the prism plate. The LEDs are arranged on a highly thermally conductive LED cooling pattern, and the LED cooling pattern is in contact with a heat-dispersion housing. For that reason, heat emitted by the LEDs is conducted from the LED cooling pattern to the housing and dispersed to the ambient air. By this means, the backlight unit can save energy and be more compact. | 05-23-2013 |
20130148057 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A backlight unit for a liquid crystal display device, the backlight unit including: an light emitting diode (“LED”) light source; a light conversion layer disposed separate from the LED light source to convert light emitted from the LED light source to white light and to provide the white light to the liquid crystal panel; and a light guide panel disposed between the LED light source and the light conversion layer, wherein the light conversion layer includes a semiconductor nanocrystal and a polymer matrix, and wherein the polymer matrix includes a first polymerized polymer of a first monomer including at least two thiol (—SH) groups, each located at a terminal end of the first monomer, and a second monomer including at least two unsaturated carbon-carbon bonds, each located at a terminal end of the second monomer. | 06-13-2013 |
20130155351 | Electronic Device With Backlit Display - An electronic device may have a liquid crystal display with backlight structures. The backlight structures may produce backlight that passes through display layers in the display. The display layers may include color filter elements, a liquid crystal layer, and a thin-film transistor layer. The color filter elements may be interposed between the thin-film transistor layer and the backlight structures or the thin-film transistor layer may be interposed between the color filter elements and the backlight structures. The backlight structures may be formed from optical fiber, a two-dimensional array of light-emitting diodes, a light guide plate that includes a rectangular recess for receiving optical films, or light guide plate structures that include internal light scattering structures. A light guide plate may be provided with alignment features that mate with alignment features on optical films. | 06-20-2013 |
20130162931 | LIGHT EFFICIENCY ENHANCING OPTICAL DEVICES - A light efficiency enhancing optical device is disclosed, including a cholesteric liquid crystal film, a quarter wave plate disposed on a light out-going surface of the cholesteric liquid crystal film and an optical compensating film disposed on a light out-going surface of the quarter wave plate, wherein the optical compensating film includes a positive birefringence C-plate, and a composite optical compensating film with combination of the optical compensating film and the quarter wave plate has in-plane phase retardation R | 06-27-2013 |
20130169904 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING SAME - A backlight unit for a liquid crystal display device including an light emitting diode light source; a light conversion layer disposed apart from the light emitting diode light source, wherein the light conversion layer is configured to convert light emitted from the light emitting diode light source to white light and provide the white light to a liquid crystal panel; and a light guide panel disposed between the light emitting diode light source and the light conversion layer, wherein the light conversion layer includes a semiconductor nanocrystal and a polymer matrix, wherein the semiconductor nanocrystal is coated with a first polymer, and wherein the polymer matrix comprises a thermoplastic second polymer. | 07-04-2013 |
20130201424 | BACKLIGHT SYSTEM AND LCD DEVICE USING THE SAME - A backlight system ( | 08-08-2013 |
20130201425 | BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS - Provided is a backlight device having: a light source element having LEDs and a lens expanding light from the LEDs; a housing containing the element; a diffuser plate covering an opening portion of the housing; and a reflection sheet reflecting light emitted from the element, toward the diffuser plate. The LEDs are arranged in one or more rows, at a central zone. The lens has an incident surface receiving light from the LEDs, and an exit surface from which the light goes out, being expanded. A plurality of the lenses are provided such that the arrangement intervals of the individual lenses at a center and edge regions of the light source element are narrow and dense, and the arrangement intervals of the individual lenses at intervening regions between the center and the edge regions are wide in comparison with those at the center and the edge regions. | 08-08-2013 |
20130201426 | BACKLIGHT DEVICE, LIQUID CRYSTAL DISPLAY APPARATUS, AND LENS - Provided is a backlight device having: a light source element having LEDs and a lens expanding light from the LEDs; a housing containing the element; a diffuser plate covering an opening portion of the housing; and a reflection sheet reflecting light emitted from the element, toward the diffuser plate. The LEDs are arranged in one or more rows, at a central zone. The lens has an incident surface receiving light from the LEDs, and an exit surface from which the light goes out, being expanded. The incident surface is a continuous concave surface, and the projected shape thereof as seen from an upper surface of the lens is an ellipse centered on an optical axis of the lens. | 08-08-2013 |
20130222735 | BACKLIGHT MODULE AND DISPLAY DEVICE USING THE SAME - A backlight module includes a frame, at least one optical film and a flexible fixing-element. The frame includes a bottom plate and a sidewall connected to the bottom plate. The frame has an inner surface and an outer surface. The inner surface has an accommodation fillister. The frame further has a hole disposed between the accommodation fillister and the bottom plate and configured to connect the inner and outer surfaces to each other. The optical film(s) is disposed in the frame and includes a main body and a lug. The lug is inserted in the accommodation fillister and has a first opening. The flexible fixing-element has a first end and a second end. The flexible fixing-element is suitable to pass through the hole and the first opening. The first end of the flexible fixing-element is fixed on the outer surface. A display device adopting the backlight module is also provided. | 08-29-2013 |
20130235302 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - Disclosed are a backlight unit, an assembly structure of which is modified to minimize the thickness of a bezel and to prevent optical defects, such as light leakage, and a liquid crystal display device using the backlight unit. The liquid crystal display device includes a liquid crystal panel, at least one light source fixing unit on which plural light sources are mounted and which is fixed to the inner side surface of a bottom cover, a diffusion plate receiving light from the plural light sources through a light entry plane and changing the progress direction of light into a forward direction, a sheet guide formed on the front surface of the bottom cover in a shape in which the inside of the sheet guide is opened, and plural optical sheets disposed on the sheet guide and separated from the diffusion plate to perpendicularly emit light from the diffusion plate. | 09-12-2013 |
20130242229 | REFLECTIVE PLATE AND METHOD FOR MANUFACTURING THE SAME AND BACKLIGHT UNIT FOR LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A reflective plate includes a high heat conductivity material having a first heat conductivity and a reflective material having a second heat conductivity on the high heat conductivity material, wherein the first heat conductivity of the high heat conductivity material is greater than the second heat conductivity of the reflective material. | 09-19-2013 |
20130242230 | LIQUID CRYSTAL DISPLAY DEVICE AND MULTI-DISPLAY SYSTEM - A liquid crystal display device ( | 09-19-2013 |
20130250212 | Direct-Light Backlight Module and Liquid Crystal Display Device - The present invention provides a direct-light backlight module and a liquid crystal display device. The direct-light backlight module includes at least two light sources; a diffuser place, disposed above the light sources; a reflection plate, disposed beneath the light sources; and an optical film, disposed on top of diffuser plate, further including a plurality of via holes disposed at corresponding areas on the optical film between two neighboring light sources; and further including a liquid crystal panel, disposed on top of the optical film. Through this manner, the present invention can realize the thin design of liquid crystal display device, with the luminance uniformity of backlight module. | 09-26-2013 |
20130278865 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE - The present invention relates to a backlight module and a liquid crystal display (LCD) device, and the backlight module comprises: a back plate disposed at the bottom of the backlight module; light emitting diode (LED) light sources disposed on the back plate; and a diffusion plate disposed on a light output surface of the backlight module. There are different distances between the LED light sources disposed in different areas of the back plate and the diffusion plate. By adopting different height of LED light sources in different areas of the back plate, the display quality of the backlight module and the LCD device according to the present invention can be increased. | 10-24-2013 |
20130286325 | MULTI-LAYERED LIGHT DIFFUSION PLATE AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING THE SAME - Disclosed herein is a multi-layered light diffusion plate, in which the multi-layered light diffusion plate is manufactured by coextruding a transparent layer comprising an amorphous transparent thermoplastic resin and a light diffusion layer comprising an amorphous transparent thermoplastic resin and transparent particles, so that the manufacturing process thereof is simple and efficient, and which has excellent light transmissivity and light diffusivity, high brightness, and high brightness uniformity, thereby improving viewing angle characteristics, and to a liquid crystal display device comprising the same. | 10-31-2013 |
20130286326 | CHANNELIZED PLATE - Preferred embodiments utilize a plurality of optical channels to effectively aim the light emitted by a liquid crystal display (LCD). Embodiments may also change the nominal and range of viewing angles of light in two or three dimensions in order to confine the emitted light towards the intended observer. | 10-31-2013 |
20130300979 | LIGHT GUIDE PLATE AND LIQUID CRYSTAL DISPLAY APPARATUS USING THE SAME - Light can be uniformly distributed in the bezel area by diffusing the light in the bezel area blocked by an upper case, or by providing an optical pattern for light concentration. Accordingly, the brightness of light is similar for all positions at the boundary between the bezel area and the display area, thereby solving the hot spot problem caused by a brightness difference depending on position. | 11-14-2013 |
20130300980 | LIGHT-DIFFUSING ELEMENT, POLARIZER HAVING LIGHT-DIFFUSING ELEMENT, AND LIQUID CRYSTAL DISPLAY DEVICE HAVING SAME - There is provided a light diffusing element made of a thin film capable of realizing low backscattering and a high haze. A light diffusing element according to an embodiment of the present invention includes: a first region having a first refractive index; and a second region having a second refractive index. The first region and the second region form a fine uneven-shaped and spherical shell-shaped boundary. | 11-14-2013 |
20130314644 | POLARIZING DIFFUSER FILM, METHOD FOR PRODUCING POLARIZING DIFFUSER FILM, AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING POLARIZING DIFFUSER FILM - Disclosed is a film having polarization selectivity and diffusibility, and a means for easily producing the film. The polarizing diffuser film is composed of substantially one kind of crystalline resin having an intrinsic birefringence of not less than 0.1, has a total light transmittance to visible light of 50-90%, a transmission haze to visible light of 15-90% and a transition polarization degree to visible light of 20-90%. | 11-28-2013 |
20130329163 | HIGH-CONTRAST DIRECT TYPE BACKLIGHT MODULE - A high-contrast direct type backlight module combined, with a display module is disclosed, and the high-contrast direct type backlight module comprises a plurality of LED light sources and a diffusion plate, and the LED light sources are arranged into a matrix, and a light emitted from the LED light sources forms an elliptical light pattern on the diffusion plate separately, and the light is transmitted to the display module through the diffusion plate. Therefore, the elliptical light patterns arranged into a matrix arrangement can improve the brightness and contrast of the high-contrast direct type backlight module to optimize the resolution of the display module and provide rich color and sharp images on screen. | 12-12-2013 |
20130329164 | LIQUID CRYSTAL DISPLAY APPARATUS - A liquid crystal display apparatus according to an exemplary embodiment of the present inventive concept is provided the liquid crystal display apparatus includes a liquid crystal panel which displays images; backlight unit which provides light to the liquid crystal panel; and an optical sheet unit which is placed between the liquid crystal panel and backlight, wherein the optical sheet unit includes at least one scattering particle optical sheet where scattering particles are provided. | 12-12-2013 |
20130335674 | Backlight Module and Liquid Crystal Display Device - The present invention provides a backlight module and a LCD device. The backlight module comprises a light guide plate comprising a incident surface and a emitting surface connecting with the incident surface, a light bar, set up on the side of the incident surface, arranging a plurality of LEDs at intervals at the side close to the incident surface, an optical film, set up on side of the emitting surface, having a plurality of notches at the side close to the light bar, wherein each of the plurality of notches corresponds to each of the plurality of LCD light sources. The present invention prevents the optical film from light-gathering the area in front of the LED by using the optical film in the shape of the arrangement of the LED to improve a mura problem of the incident side of the backlight module and solve the problem of light leakage of the backlight module in a design of a narrow plastic frame to boost the quality of the backlight module. | 12-19-2013 |
20130335675 | DIRECT-TYPE BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY USING THE SAME - A direct-type backlight unit is provided for improving a dark area problem on the diffusion plate. The direct-type backlight unit includes an optical sheet; a diffusion plate for supporting the optical sheet; a bottom plate, disposed below the diffusion plate; a plurality of light emitting devices (LEDs), disposed between the diffusion plate and the bottom plate; a plurality of supporting elements, disposed between the diffusion plate and the bottom plate and fixed on the bottom plate, each supporting element including: a top portion having a light transmissive section through which light emitted by the LEDs pass; and a bottom portion, fixed on the bottom plate. | 12-19-2013 |
20140002771 | LIGHT SOURCE ASSEMBLY, BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE | 01-02-2014 |
20140028954 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display (LCD) device is provided. The LCD device includes a substrate having at least one pixel region defined by a pair of gate lines extending in a first direction and a pair of data lines extending in a second direction. A first insulating layer is disposed on the substrate corresponding to the pixel region. A first common electrode is disposed on the first insulating layer. A pixel electrode pattern is disposed above the first common electrode. A second insulating layer is interposed between the first common electrode and the pixel electrode pattern. A pair of second common electrodes is formed on the second insulating layer and corresponds to the pair of data lines. | 01-30-2014 |
20140049725 | LIQUID CRYSTAL DISPLAY MODULE AND METHOD FOR MAKING SAME - A liquid crystal display module includes a light source and a liquid crystal module. The liquid crystal module includes a top glass substrate, a bottom glass substrate and a liquid crystal layer sandwiched between the top glass substrate and the bottom glass substrate. The bottom glass substrate covers the light source, and has a hollow inner space. A top wall of the inner space presents a number of microstructures extending down to the light source, for scattering light emitted from the light source before the emitted light enters the liquid crystal layer. | 02-20-2014 |
20140055716 | LIQUID-CRYSTAL-LENS TYPE LIGHT-MODULATING APPARATUS AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A liquid-crystal-lens type light-modulating apparatus and a liquid crystal display having the same are disclosed. The liquid-crystal-lens type light-modulating apparatus comprises: a first light-transmissive substrate, with a first electrode layer and a first alignment layer being provided sequentially on an upper surface thereof; a second light-transmissive substrate located over the first substrate, with a second electrode layer and a second alignment layer being provided sequentially on a lower surface thereof; and liquid crystal sandwiched between the first and second alignment layers, wherein at least one from the first and second electrode layers is formed as a patterned electrode, and the patterned electrode comprises: a plurality of electrode light-transmissive regions and a plurality of light-shielding regions, arranged at an interval therebetween; and the liquid-crystal-lens type light-modulating apparatus further comprises a shielding sheet provided above the second substrate, and the shielding sheet comprises: a plurality of shielding sheet light-transmissive regions and a plurality of shielding sheet light-shielding regions, arranged at an interval therebetween; and each of the shielding sheet light-shielding regions is located over one of the electrode regions in the patterned electrode, and has an area less than the area of an electrode region corresponding to it. | 02-27-2014 |
20140055717 | Systems and Methods for Preventing Light Guide Plate Scratching Artifacts - Systems, methods, and devices for preventing scratching artifacts on a light guide plate of a backlight are provided. In one example, an electronic device may include a processor to generate image data and a display to display the image data. The display may include a liquid crystal display panel and a backlight unit. A light guide plate and a diffuser of the backlight may be separated at least partly by a light guide plate scratch protection component. The light guide plate scratch protection component may be a pattern of molded convex bumps on the light guide plate, a self-healing coating, a nonstick (e.g., Teflon) coating, or some combination of these surfaces. | 02-27-2014 |
20140071380 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY USING THE SAME - The disclosure discloses a backlight unit and a liquid crystal display comprising thereof. The backlight unit comprises a light guiding plate comprising a plurality of light guiding plate units, which are arranged as a matrix along longitudinal and traversal directions, with line-shaped gaps extending respectively along traversal or longitudinal direction existing between two adjacent light guiding plate units; a light source provided at a side of light guiding plate; and a diffusing sheet provided above the light guiding plate. At a position corresponding to the line-shaped gap between the two adjacent light guiding plate units, the diffusing sheet has a shape of line-shaped projection, and the line-shaped projection has a projected direction in a direction of the light emitted from the light guiding plate unit. According to the disclosure, the uniformity of the backlight may be improved. | 03-13-2014 |
20140071381 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME - A backlight unit for a liquid crystal display device including a liquid crystal panel, includes: a light source including a light-emitting diode (“ED”) which generates and emits light; and a light converting layer between the light source and the liquid crystal panel, spaced apart from the light source, and converting the light from the light source into white light and emitting the white light toward the liquid crystal panel. The light converting layer includes: semiconductor nanocrystals, and a barrier material which restricts penetration of moisture or oxygen. | 03-13-2014 |
20140085569 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a liquid crystal panel; a backlight unit disposed under the liquid crystal panel and including a light guide plate and a light emitting diode (LED) assembly at a side of the light guide plate; a main frame surrounding a side of the backlight unit and having a light-diffusion property. | 03-27-2014 |
20140092343 | LENS AND LED UNIT USING THE LENS AND DISPLAY USING THE LED UNIT - An exemplary lens for diffusing light from an LED to a diffusion plate of an LCD module, includes a light-refraction portion and a plurality of legs extending from the light-refraction portion. The light-refraction portion includes a light-incident face facing the LED and a light-emergent face opposite to the light-incident face and facing the diffusion plate. The light-incident face defines a plurality of dots therein. Each dot is a depression and has an inner face concaved from the light-incident face. | 04-03-2014 |
20140111742 | WIRE MESH TYPE DIFFUSER PLATE AND METHOD OF FABRICATING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE WIRE MESH TYPE DIFFUSER PLATE - Disclosed are a wire mesh type diffuser plate, a method of fabricating the same, and a liquid crystal display device having the same. A film type diffuser plate having predetermined tension is fabricated through traction by using a wire mesh instead of a diffuser plate based on an existing extruding method to improve egg mura generated in a backlight unit. The liquid crystal display device includes: a liquid crystal panel displaying an image; a plurality of lamps installed below the liquid crystal panel and providing light to the liquid crystal panel; a plurality of optical sheets installed between the plurality of lamps and the liquid crystal panel; a reflection plate installed below the plurality of lamps; and a diffuser plate formed of a wire mesh having predetermined tension and installed between the plurality of lamps and the optical sheet and having predetermined tension. | 04-24-2014 |
20140111743 | SURFACE LIGHT SOURCE DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, AND MOBILE DEVICE - An area light source device has a light guide plate having an end face and a light exit surface, a light source that is disposed in a position facing the end face of the light guide plate, a plurality of optical sheets that are disposed on the light guide plate, a light shielding plate that is disposed so as to cover an upper portion of the light source, and a light blocking member that is provided between the end face of the light guide plate and the light exit surface. The end face of the light guide plate is configured to have light introduced therethrough. The light exit surface of the light guide plate is configured to output the light from the light guide plate. The light blocking member is different from the light shielding plate. | 04-24-2014 |
20140176865 | LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF - The present invention relates to a liquid crystal display (LCD) and a manufacturing method thereof; the LCD comprises a backlight module and a display panel; an included angle ⊖ | 06-26-2014 |
20140176866 | LED DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - An LED device includes an LED chip, a fluorescent layer and a lens. The fluorescent layer has phosphor powder diffused therein. The lens covers the LED chip and is positioned between the LED chip and the fluorescent layer. Light emitting from the LED chip travels through the lens and the fluorescent layer to obtain white light. The present discloser also provides a liquid crystal display using the LED device described above. | 06-26-2014 |
20140204312 | LED LIGHT SOURCE AND METHOD OF MANUFACTURING THE SAME - After the LEDs | 07-24-2014 |
20140211123 | DISPLAY MODULE AND DISPLAY APPARATUS HAVING THE SAME - A display module includes a display panel, a diffusion plate, a bottom chassis, and a transparent spacer made having a diffusion pattern formed thereon disposed on the bottom chassis to support the diffusion plate. | 07-31-2014 |
20140253844 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a liquid crystal panel, a pair of polarizing layers, a lighting device, and an output angle control member. The liquid crystal panel includes a pair of substrates, and a liquid crystal layer. The liquid crystal layer is interposed between the pair of substrates. The pair of polarizing layers is arranged on a light input side and a light output side of the liquid crystal layer. The lighting device is arranged on the light input side of the liquid crystal panel and radiates light toward the liquid crystal panel. The output angle control member is arranged on the light output side of the liquid crystal panel and controls an output angle of light which is output from the liquid crystal panel. An azimuth angle direction in which a view angle of the liquid crystal panel is relatively narrow and an azimuth angle direction in which an intensity of light which is radiated toward the liquid crystal panel from the lighting device is relatively small approximately match in an azimuth angle direction which is viewed from a direction normal to the liquid crystal panel. | 09-11-2014 |
20140285749 | OPTICAL STACK WITH ASYMMETRIC DIFFUSER - The present disclosure describes an optical stack that includes an asymmetric diffuser. As described herein, use of an asymmetric diffuser in an optical stack reduces undesirable defects in a display while maintaining optical gain and/or contrast of the display. The asymmetric diffuser is less diffusive along a first direction that is parallel with linearly extending structures of an associated light directing film | 09-25-2014 |
20140300844 | DISPLAY DEVICE - A display device includes a light source placement surface, a display panel provided opposite the light source placement surface and that comprises a pair of first sides, a first light source cluster that passes through a predetermined central area of the light source placement surface and that comprises a plurality of light sources disposed on the light source placement surface along a direction of the first sides, and a second light source cluster that includes at least one light source mounted to a corner portion of the light source placement surface and that comprises a plurality of light sources disposed on the light source placement surface in a direction heading from the corner portion to the central area. | 10-09-2014 |
20140307202 | POLARIZATION PLATE FOR USE IN A LIQUID CRYSTAL DISPLAY - A polarization plate is provided for use between a light source and a display panel, where the light source is configured to emit light having a plurality of planes of polarization and the display panel is configured to have a predetermined polarization axis. The plate includes a repolarization region and a prepolarization region. The repolarization region is configured to diffuse and to depolarize or rotate at least one plane of polarization of the light passing therethrough. The prepolarization region is disposed adjacent to and in contact with the repolarization region. The prepolarization region is configured to be substantially nonabsorbent, to allow passage of light having a plane of polarization that is substantially aligned with the predetermined polarization axis, and to prevent passage of light having a plane of polarization that is not substantially aligned with the predetermined polarization axis. In another embodiment, an interface is provided between the regions. | 10-16-2014 |
20140320783 | CONDENSING SHEET, BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A condensing sheet, a backlight unit and a liquid crystal display device using the same are disclosed. The condensing sheet includes a base film, and a plurality of ,condensation patterns formed on the base film, wherein a first area and a second area are alternately defined on an upper surface of the base film, at least two condensation patterns are arranged in the first area, and a flat surface is formed in the second area, and wherein a width of each of the condensation patterns may be greater than a width of the flat surface. | 10-30-2014 |
20140327858 | PRISM SHEET, AND BACK LIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE THEREWITH - The present invention relates a prism sheet, and a back light unit and a liquid crystal display device therewith, in which total thickness of a back light unit is reduced while taking place of the lamp mura is prevented, for improving a picture quality. | 11-06-2014 |
20140333873 | DISPLAY DEVICE - A display device including a display panel configured to display, a backlight unit configured to emit light toward the display panel, a pattern layer having a pattern formed to compensate for short-wavelength light among light emitted the backlight unit, and a diffusion plate configured to diffuse the compensated short-wavelength light and the light emitted from the backlight unit, so that the non-uniform color generated due to the color breakup is improved by use of blue ink having a bead shape that is disposed on the diffusion plate. | 11-13-2014 |
20140333874 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device has at least: a first and a second polarizing layers arranged so that respective absorption axes thereof are orthogonal to each other; a first and a second substrates arranged opposite to each other between the first and second polarizing layers, at least either one of which has a transparent electrode; a twisted alignment mode liquid crystal cell arranged between the first and the second substrates; a first optical compensation film arranged between the first polarizing layer and the liquid crystal cell, including a first transparent support and a layer formed by curing a composition containing a first liquid crystal compound; and a second optical compensation film arranged between the second polarizing layer and the liquid crystal cell, including a second transparent support and a layer formed by curing a composition containing a second liquid crystal compound, as defined herein. | 11-13-2014 |
20140347603 | LIGHT GUIDE PLATE, BACKLIGHT MODULE, AND LIQUID CRYSTAL DISPLAY DEVICE - A light guide plate includes an optically effective portion and an optical coupling portion adjoining the optically effective portion. The optically effective portion includes a first bottom surface, a light output surface opposite to the first bottom surface, and a side surface connected between the first bottom surface and the light output surface. The optical coupling portion includes a second bottom surface, a first light incident surface opposite to the side surface, a second light incident surface, a first connecting surface, and a second connecting surface. The second bottom surface is coplanar with the first bottom surface. The second light incident surface extends from the first light incident surface away from the side surface. The first connecting surface extends from the second light incident surface toward the side surface. The second connecting surface is connected between the first connecting surface and the light output surface. | 11-27-2014 |
20140347604 | BACKLIGHTING SYSTEM INCLUDING A SPECULAR PARTIAL REFLECTOR AND A CIRCULAR-MODE REFLECTIVE POLARIZER - A backlight that includes an illumination device that has at least one light source, a circular-mode reflective polarizer, and a specular partial reflector is disclosed. The specular partial reflector is disposed between the illumination device and the circular-mode reflective polarizer. Furthermore, the specular partial reflector is in substantially direct polarization communication with the circular-mode reflective polarizer. | 11-27-2014 |
20140354917 | LIQUID CRYSTAL DISPLAY DEVICE HAVING LASER LIGHT SOURCE UNIT AND BACKLIGHT MODULE OF SAME - A liquid crystal display (LCD) device includes a backlight module and an LCD panel. The backlight module includes an array of light emitting units and an optical film unit. Each of the light emitting units includes a laser light source unit configured to emit a white light and a scanning mirror configured to reflect the white light to different directions to light a target area. The white light reflected by the scanning mirror is transmitted by the optical film unit and the LCD panel in sequence. | 12-04-2014 |
20140368768 | PLANAR LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE EQUIPPED WITH SAME - In the present invention, a backlight ( | 12-18-2014 |
20150009451 | Displays With Reflective Polarizers - An electronic device may be provided with a display mounted in a housing. The display may include a liquid crystal display module and a reflective polarizer having an in-plane optical axis. The display may also include a backlight unit that includes a light source, a light guide element, and a reflector film coupled to a backside of the light guide element. The display may also include a light retardation layer such as a quarter wave film. The quarter wave film may be arranged between the reflective polarizer and the reflector film of the backlight unit. During operation of the display, partially polarized light that is output from a front side of the light guide element may have a first component parallel to the in-plane optical axis and a second component perpendicular to the in-plane optical axis of the reflective polarizer. The second component may be reflected from the reflective polarizer. | 01-08-2015 |
20150009452 | OPTICAL LENS, LIGHT EMITTING DEVICE, AND DISPLAY - An optical lens, light emitting device, and display are provided. The optical lens may include a flange comprising an upper surface and a bottom surface, a protruder that protrudes with respect to the bottom surface, a first surface that extends from the upper surface of the flange, and a second surface inwardly recessed toward the protruder. The first surface and the second surface may meet to form an outer rim of the optical lens. The first surface may be sloped with respect to an optical axis, which is a straight line that passes through a center of the protruder and a center of the second surface. A ratio of a longest straight-line distance between outermost edges of the flange taken across the flange to a shortest straight-line distance from a lowermost point of the protruder to a plane including the outer rim may be approximately 0.5 to 5. | 01-08-2015 |
20150022756 | BACKLIGHT MODULE AND CORRESPONDING LIQUID CRYSTAL DISPLAY DEVICE - The present invention relates to a backlight module and a corresponding liquid crystal display panel. The backlight module includes a backboard having multiple concave portions formed on an inner surface of the backboard and multiple light sources mounted in the concave portions. The backlight module and the corresponding liquid crystal display device of the present invention can reduce the thickness of direct-type backlight module without affecting the optical quality of the lights emitted from the backlight module and increasing the manufacturing cost of the backlight module. | 01-22-2015 |
20150022757 | DISPLAY WITH NONWOVEN DIFFUSER - The present disclosure describes a display system including a liquid crystal display panel and a light source emitting light capable of emitting light. A nonwoven diffuser element is disposed between the light source and the liquid crystal display panel. The polymeric nonwoven diffuser is non-orientated and has a fiber diameter of less than 50 micrometers, a fiber aspect ratio of length/diameter of greater than 5 and a basis weight in a range from 10 to 80 grams/meter | 01-22-2015 |
20150022758 | COLLIMATING LIGHT GUIDE PLATE, DIFFUSING UNIT, AND DISPLAY APPARATUS EMPLOYING THE SAME - A diffusing unit includes: a polarizing plate; and a diffusing layer integrally provided on a surface of the polarizing plate without an air layer therebetween. By using a display apparatus employing a collimating light guide plate and the diffusing unit, the optical performances such as resolution and viewing angle can be improved. Also, because gray scale inversion and color shifts can be reduced or eliminated using collimated light, image quality of the display apparatus can be improved. | 01-22-2015 |
20150029439 | BACKLIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A back light assembly includes: a light source including a light emitting diode which generates white light having color coordinates located on one of a plurality of color coordinate ranks; a reflector sheet which reflects the white light incident from the light source, where the reflector sheet includes a reflective material which reflects light incident thereon and a color compensation material which compensates the color coordinates of the white light by controlling the intensity of light having a predetermined wavelength range, among the white light, to allow the color coordinates of the white light to converge on target color coordinates; and a diffuser plate which diffusing light provided from the light source and the reflector sheet. | 01-29-2015 |
20150036076 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE - The invention discloses a backlight module and liquid crystal display device. The backlight module of liquid crystal display device includes: a back plate and a diffuser disposed opposite to back plate; backlight module further comprising a plurality of light-emitting units, disposed between back plate and diffuser; each of light-emitting units comprising a light-guiding strip, fixed to back plate and light source, fixed and disposed on back plate opposite to one end of light-guiding strip; wherein light-guiding strip comprising a light-emitting surface and a bottom surface, disposed oppositely to each other; light-emitting surface having an arc cross-section and a top being convex facing bottom surface; light-emitting surface being for uniformly diffusing incident light from light source. Through disposing light-guiding strips for diffusing incident light from light source, the invention can achieve higher luminance with less number of light sources and reduce cost. | 02-05-2015 |
20150062490 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING SAME - Disclosed is a backlight unit that includes: a light guide plate that guides light, using internal total reflection; a plurality of short wavelength light sources that are disposed on a side of the light guide plate and radiate short wavelength lights into the light guide plate; a three-color light source array that is disposed on the bottom or the top of the light guide plate and includes a plurality of color conversion materials exciting the short wavelength lights from the short wavelength light sources into red or green or blue; and a lenticular lens array sheet that is disposed between the three-color light source array and the liquid crystal panel and refracts the three color lights emitted from the three-color light source array into the subpixels. | 03-05-2015 |
20150062491 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a liquid crystal panel that includes a liquid crystal cell including a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, and a pair of polarizers arranged on a light incident side and a light emission side of the liquid crystal layer; an illumination device that is arranged on the light incident side of the liquid crystal cell, and emits light toward the liquid crystal cell; and a light control member that is arranged on the light emission side of the liquid crystal panel, and controls an emission direction of light emitted from the liquid crystal panel by anisotropically diffusing the light in an azimuthal direction as viewed from a direction normal to the liquid crystal panel. The light control member is arranged such that an azimuthal direction in which a luminance viewing angle of the liquid crystal panel is relatively narrow and an azimuthal direction in which diffusivity of the light control member is relatively high approximately coincide with each other. | 03-05-2015 |
20150062492 | LIGHT CONTROL MEMBER, METHOD FOR MANUFACTURING SAME, AND DISPLAY DEVICE - A light control film (light control member) includes a light transmissive base, a plurality of light shielding portions scattered over one surface of the base, and a light diffusing portion formed on the one surface of the base in a region other than regions in which the light shielding portions are formed. The light diffusing portion has a light exit end face and a light incident end face having a larger area than the light exit end face, and the height of the light diffusing portion is greater than the thickness of the light shielding portions. At least part of the opening of at least some of a plurality of air-cavities has a protrusion which is formed of a portion of the light diffusing portion that projects toward the inner side of the opening. | 03-05-2015 |
20150070626 | COLUMNAR LIGHT EMITTING DEVICE, LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SAME - A columnar light emitting device is provided. The columnar light emitting device includes an upper transparent electrode layer, a lower transparent electrode layer disposed to be separated from the upper transparent electrode layer, a columnar light emitting structure pattern-formed between the upper transparent electrode layer and the lower transparent electrode layer, a fluorescent part formed between a plurality of the columnar light emitting structures, a P-type electrode pad formed on the upper transparent electrode layer, and an N-type electrode pad formed under the lower transparent electrode layer. The columnar light emitting structure includes a U-GaN layer, an N-type semiconductor layer, an emission layer, and a P-type semiconductor layer. | 03-12-2015 |
20150146135 | BACKLIGHT MODULE, LIQUID CRYSTAL DISPLAY AND CONTROL METHOD FOR DRIVING BACKLIGHT SOURCE - A backlight module, a liquid crystal display and a control method for driving the backlight source, the backlight module comprising an LED backlight source and a driving circuit, the LED backlight source comprising first LEDs each formed of a blue light chip, red phosphor powder and green phosphor powder, and second LEDs each formed of a blue light chip, a green light chip and red phosphor powder, and the driving circuit comprising driving circuit modules for driving the first LEDs and the second LEDs respectively. The liquid crystal display includes the above-mentioned backlight module and the display panel. | 05-28-2015 |
20150301407 | Display Panel with Reduced Short-Wavelength Blue Light - A display panel with reduced short-wavelength blue light is provided and includes a backlight module and an LCD panel. The backlight module includes a plurality of LEDs, each of which includes a blue LED die configured to emit blue light with a peak wavelength ranging from 455 to 475 nm. The present invention may efficiently reduce blue light with wavelengths less than 455 nm to protect eyes, and may not reduce display brightness and encounter color aberration. Moreover, the backlight module may further include an optical filter sheet or film configured to filter blue light with wavelengths less than 455 nm, and may further reduce blue light with wavelengths less than 455 nm to protect eyes more while modulating reduced display brightness and reduce color aberration. | 10-22-2015 |
20150331277 | LIQUID CRYSTAL DISPLAY DEVICE AND VEHICLE MEASURING INSTRUMENT - A liquid crystal display device includes a liquid crystal panel; a light source; a light guide member that guides light emitted from the light source to a back surface side of the liquid crystal panel; a diffuser panel that is disposed between the light guide member and the liquid crystal panel, extended over an entire area of the back surface of the liquid crystal panel, and diffuses the light received from the light guide member to illuminate the light to the liquid crystal panel; a first reflector that is provided on a back surface of the diffuser panel close to the light guide member side and on an optical axis of the light received from the light guide member, and reflects the light towards the light guide member side; and a second reflector that reflect the light reflected on the first reflector to the diffuser panel side. | 11-19-2015 |
20150346552 | SUPPORTING MEMBER FOR BACKLIGHT UNIT, BACKLIGHT UNIT AND IMAGE DISPLAY APPARATUS HAVING THE SAME - A supporting member usable with a backlight unit of an image display apparatus includes a supporting portion that is formed of a transparent material, disposed below a diffuser plate to support the diffuser plate, and includes a first end being in contact with the diffuser plate and two flat side surfaces disposed in parallel to one another and connected to one another at the first end; a base that is formed at a second end of the supporting portion and fixes the supporting portion to an under chassis of the backlight unit; and a reinforcing portion that is disposed on a top surface of the base. | 12-03-2015 |
20150378086 | OPTICAL ASSEMBLY, MANUFACTURING METHOD FOR THE SAME AND DISPLAY DEVICE - The present disclosure of the present invention provides an optical assembly, a manufacturing method thereof, and a display device. Specifically, the optical assembly for a backlight module includes a light guide plate; and a set of optical membranes located on a light exiting surface of the light guide plate. The light guide plate is adhesively fixed with the set of optical membranes by a first transparent adhesive layer. | 12-31-2015 |
20150378214 | WAVELENGTH MIXING OPTICAL COMPONENT - The present disclosure includes an optical component including one or more microstructures configured to diffuse light incident thereto from within the optical component. The microstructures are provided at least on a light input surface of the optical component provided in a bottom cavity of its body. | 12-31-2015 |
20160011461 | DISPLAY DEVICE HAVING BACKLIGHT ASSEMBLY WITH TRANSPARENT MOLD FRAME | 01-14-2016 |
20160026065 | LIGHT CONVERSION MEMBER, METHOD OF MANUFACTURING THE SAME, AND DISPLAY APPARATUS HAVING THE SAME - A light conversion member includes a first unit substrate, a second unit substrate disposed to face the first unit substrate, a quantum-dot accommodating member disposed between the first and second unit substrates and positioned adjacent to a boundary of the first and second unit substrates to seal a space between the first and second unit substrates, and a quantum dot member in the sealed space to convert a light incident thereto to a white light. | 01-28-2016 |
20160054510 | SURFACE LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - A surface light source device includes a laser beam source, a laser beam guide rod for converting a laser beam into first linear light, an LED light source, an LED light guide rod for converting LED light into second linear light, a reflecting bar having a reflecting portion for reflecting part of the first and second linear light and a diffusion reflecting portion for diffusing and reflecting a residual part of the first and second linear light, and a light reflecting portion formed in a box shape and having an opening portion with an emission side opened and a reflecting surface on an inside of the box shape. Part of the first and second linear light is reflected by the reflecting portion and the reflecting surface, and a residual part is diffused and reflected by the diffusion reflecting portion and is emitted from the opening portion. | 02-25-2016 |
20160054511 | DISPLAY SCREEN AND METHOD FOR MANUFACTURING THE SAME - Provided are display screen and method for manufacturing the same. The display screen includes a first substrate, a second substrate and a liquid crystal layer arranged between the first substrate and the second substrate; the first substrate includes a base substrate, an optical module arranged on the base substrate, and a plurality of pixel units directly arranged on the optical module; and the second substrate includes an array substrate. | 02-25-2016 |
20160056348 | LIGHT-EMITTING APPARATUS - The present application discloses a light-emitting apparatus having a light-emitting device and a wavelength conversion layer. The light-emitting device has a first top surface and a first side surface, and the wavelength conversion layer has a second top surface and a second side surface and covers the first top surface. A ratio of a distance between the first top surface to the second top surface and a distance between the first side surface and the second side surface is between 1.1˜1.3. | 02-25-2016 |
20160109089 | DISPLAY DEVICE - A display device includes a display panel, a light source providing light to the display panel, a bottom chassis, the light source being positioned on the bottom chassis, a diffuser plate between the light source and the display panel, the diffuser plate directing light emitted from the light source toward the display panel, and a supporter between the bottom chassis and the diffuser plate to support the diffuser plate, the supporter including a support portion that is at least partially bent. | 04-21-2016 |
20160161089 | WHITE LIGHT EMITTING DEVICE AND DISPLAY DEVICE USING THE SAME - A white light emitting device, including a circuit board; a plurality of light sources mounted on the circuit board, each light source of the plurality of light sources configured to emit monochromatic light; a light converter spaced apart from the circuit board, the light converter configured to convert the monochromatic light emitted from the light sources to white light; and a compensator provided between the circuit board and the light converter, the compensator configured to convert the emitted monochromatic light to white light. | 06-09-2016 |
20160195771 | METHOD FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE | 07-07-2016 |
20170235191 | DISPLAY DEVICE | 08-17-2017 |
20190146278 | DEFORMED LIQUID CRYSTAL DISPLAY DEVICE | 05-16-2019 |
20220137462 | METHOD FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE - A low-resolution image is displayed at high resolution and power consumption is reduced. Resolution is made higher by super-resolution processing. Then, display is performed with the luminance of a backlight controlled by local dimming after the super-resolution processing. By controlling the luminance of the backlight, power consumption can be reduced. Further, by performing the local dimming ater the super-resolution processing, accurate display can be performed. | 05-05-2022 |