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Light modifier with emission face combined with light guide plate

Subclass of:

362 - Illumination

362600000 - EDGE LIGHTED PANEL

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Class / Patent application numberDescriptionNumber of patent applications / Date published
362607000 Combination of two or more modifiers 129
Entries
DocumentTitleDate
20130044511DISPLAY DEVICE - A backlight unit includes: a wiring board having a light source mounted thereon; a light guide plate; a light-shielding pressure-sensitive adhesive sheet; and a light diffusion sheet. The front surface of the light guide plate includes an effective region serving as the planar light source and a light entering region ranging from the end surface into which the light enters to the effective region. The wiring board and the light-shielding pressure-sensitive adhesive sheet each have a part positioned in the light entering region. The light diffusion sheet is arranged from the effective region to the light entering region, and overlaps with the light-shielding pressure-sensitive adhesive sheet in the light entering region. On a side closer to the effective region with respect to the light-shielding pressure-sensitive adhesive sheet, the light entering region is covered with the light diffusion sheet without a gap.02-21-2013
20090196067BACKLIGHT - The present invention relates to a backlight for a liquid crystal display (LCD). The backlight can comprise a back cover including a bottom plate and side covers, a light guide plate disposed on the bottom plate, and cold cathode fluorescence lamps (CCFLs) located on the sides of the light guide plate and enclosed by the side covers. The CCFLs can be disposed on four sides of the light guide plate. The CCFLs can be two lamps in L shape or four lamps in a straight line shape disposed on the sides of the light plate, with high voltage ends of one CCFL adjacent to the low voltage ends of another CCFL, thus allowing the LCD lighter, slimmer and more compact in structure.08-06-2009
20100053992ILLUMINATION SYSTEM AND DISPLAY DEVICE - The invention relates to an illumination system (03-04-2010
20080259638OPTICAL PLATE AND BACKLIGHT MODULE USING THE SAME - An exemplary optical plate (10-23-2008
20080259636OPTICAL PLATE AND BACKLIGHT MODULE USING THE SAME - An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of depressions and at least one lamp-receiving portion. The light output surface is opposite to the bottom surface. The depressions are formed at the bottom surface. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.10-23-2008
20080259635BACKLIGHT MODULE - A backlight module has a light guide plate and a light source. The light guide plate contains a top plane, a bottom plane opposite to the top plane, a light entrance plane positioned between the top plane and the bottom plane, and a widened edge plane opposite to the light entrance plane. The widened edge plane is slanted relative to the light entrance plane.10-23-2008
20080259634DOUBLE-SIDED TURNING FILM - A backlight device for a display comprising (1) a side-lit light source, (2) a light guide plate and (3) a turning film comprising a light entry and a light exit surface comprising lenticular elements on the exit surface and prismatic structures on the entry surface, wherein the average values of the parameters of the features and the thickness of the film are selected to provide a peak output angle of ±10° from normal to the light exit surface of the light guide plate and an optical gain of at least 1.25. Also disclosed are methods of making the turning film and a display incorporating the backlight.10-23-2008
20110194305DECORATION PANEL - A light guide module capable of illuminating and being applied in a device for decoration is provided. The light guide module includes a reflective layer, a light guide with a plurality of diffusing particles, and a light source. The light guide has a side surface, a reflective surface and a light-exiting surface, thereby allowing a light from the light source to enter and reflect and exit the light guide respectively. The reflective layer is disposed on the reflective surface of the light guide for reflecting the light to the light-exiting surface. The light guide forms a portion of an outer surface of the device.08-11-2011
20090129116LIGHT GUIDE PLATE, SURFACE LIGHT SOURCE DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a light guide plate which can process in polarization separation, and emit a light in a desirable direction, a surface light source device, and a liquid crystal display device. A light guide plate 05-21-2009
20100157623Planar light-emitting apparatus - A planar light-emitting apparatus includes a light source, a light-guiding member configured to allow light from the light source to propagate therethrough, a reflecting member disposed such that the reflecting member faces the light-guiding member, the reflecting member reflecting the light propagating through the light-guiding member, and an adhesive member configured to attach the light-guiding member and the reflecting member to each other. A distribution of an adhesive region of the adhesive member on a surface of the light-guiding member is determined on the basis of a brightness distribution of the planar light-emitting apparatus in the case where the adhesive member is uniformly distributed on the surface of the light-guiding member, and the adhesive member is formed between the light-guiding member and the reflecting member in accordance with the distribution of the adhesive region.06-24-2010
20100118562LIGHT-EMITTING ELEMENT AND DISPLAY UNIT HAVING THE SAME - A first light guide plate of a light-emitting element is formed by a plurality of strip-shaped light guide bodies arranged in parallel with each other, where each strip-shaped light guide body has a light incident surface on which light from a light source is incident, and a light-emitting surface from which light from the light incident surface is emitted, and on which a plurality of prisms are formed. A second light guide plate of the light-emitting element is positioned so as to face the light-emitting surface side of the first light guide plate, has prisms formed on a surface of the first light guide plate side in a shape that meshes with a shape of the prisms of the first light guide plate, and is formed by a fewer number of light guide bodies arranged in parallel than the strip-shaped light guide bodies.05-13-2010
20100073958Illuminating device - An illuminating device for backlighting flat displays, in particular displays for mobile applications, is provided. The illuminating device includes a light source and a light guiding member into which light emitted from the light source is coupled in and is coupled out therefrom at an exit surface. The exit surface has a surface structure including diffractive surface elements for light propagation, wherein all surface elements have a surface structure with a constant amplitude.03-25-2010
20130077344LINEAR LIGHT SOURCE DEVICE AND PLANAR LIGHT SOURCE DEVICE - A linear light source device comprises a wiring substrate in a rectangular shape and having a wiring pattern formed thereon, a plurality of light emitting elements arranged on the wiring substrate in a longitudinal direction of the wiring substrate and connected with the wiring pattern on the wiring substrate, and a sealing resin that seals the light emitting elements, wherein the linear light source device is to be arranged on a side surface of a light guiding plate to form a planar light source device, and an external connection terminal is arranged on a surface of the wiring substrate that is opposite to a surface of the wiring substrate where the light emitting element are arranged and in a central portion in the longitudinal direction of the wiring substrate, and connected with the wiring pattern.03-28-2013
20130033895Thin Edge-Lit LED Backlight Panel and Light Guide - A backlight sufficiently bright to be useful as a backlight for a high definition LCD television panel, or other types of visual display screens is disclosed. An LED wide enough to provide adequate light energy is used. The light energy is directed into a thin substrate panel via a tapered aperture port, and released toward a viewing surface in a uniform manner due to light guide disrupters calculated to optimize the output pattern.02-07-2013
20130027970ILLUMINATION DEVICE AND DISPLAY DEVICE INCORPORATING SAME - An illumination device that can enhance the efficiency of utilization of light is provided. This illumination device includes LEDs (01-31-2013
20130027969ELECTRONIC DEVICE WITH LIGHT ADJUSTING MEMBER - An electronic device includes a shell, a circuit board, a light source mounted on the circuit board, a light guiding member defining a first pattern, a transparent light adjusting member defining a second pattern, a driving member, a sliding member slidably received in the shell, an optical sensor and a processor. The light adjusting member is revolvably mounted to the shell. The sliding member is mechanically coupled to the light adjusting member. The driving member is configured to drive the sliding member to move linearly so as to enable the sliding member to drive the light adjusting member to revolve, thereby rotation of the second pattern relative to the first pattern causing variation of light intensity passing through the light adjusting member. The optical sensor detects the ambient brightness. The process controls the driving member based on the ambient brightness.01-31-2013
20090010023LIGHT SOURCE HAVING TRANSPARENT LAYERS - A system for providing a light source is disclosed. In one embodiment, the apparatus comprises a light guide made of several transparent layers having different refractive indexes.01-08-2009
20120182762ILLUMINATION MODULE - An illuminating module includes at least one light-emitting chip, a phosphor, and a color temperature conversion media. The light-emitting chip is capable of emitting wavelength light, and the phosphor is disposed in a propagation path of the wavelength light to transform the wavelength light into a first white light with a first color temperature. The color temperature conversion media is disposed in a propagation path of the first white light to transform the first white light into a second white light with a second color temperature. The second color temperature is smaller than the first color temperature.07-19-2012
20120182761PLANAR LIGHT SOURCE DEVICE - A planar light source device (07-19-2012
20130070477SPREAD ILLUMINATING APPARATUS - An apparatus includes a two-sided prism sheet, and an optical path conversion unit with linear prisms. Each apex angle of the prisms increases the closer the linear prism is formed to the center in the light guide direction, and when a pair of inclined surfaces of each of the prisms has a first inclined surface and a second inclined surface, an inclination angle of the second inclined surface is larger than the one of the first inclined surface. Among the prisms, inclination angles e03-21-2013
20130070476PLANAR ILLUMINATION APPARATUS - A planar illumination apparatus includes: a light source; a light guide plate having a light-receiving end surface arranged facing the light source, an output flat surface for planarly outputting light received through the light-receiving end surface and a reflective flat surface facing the output flat surface; a reflective sheet disposed on the reflective flat surface side of the light guide plate; and a flexible printed circuit board disposed on substantially the same plane as that of the reflective sheet, the flexible printed board mounting the light source, wherein the flexible printed circuit board has a mounting portion on which the light source is mounted and a thin portion which extends from a forward side edge and is formed thinner than the mounting portion, and wherein at least one part of the thin portion and an end portion of the reflective sheet are overlapped with each other.03-21-2013
20130051066ILLUMINATION APPARATUS - An illumination apparatus includes light sources; a light guide plate guiding lights from the light sources; a housing holding the light sources and the light guide plate;02-28-2013
20120218776COMPOSITE COLOR SEPARATION SYSTEM - A color separation system is disclosed, which comprises: a wavelength distribution module, a light guide module and a light splitting module. The wavelength distribution module includes at least one lighting unit and at least one lens unit, in which each lighting unit emits at least two beams of different wavelengths. The plurality of beams is directed to enter the lens unit before it is discharged out of the wavelength distribution module. After that, the plural beams from the wavelength distribution module enters the light guide module. The portion of those beams that are being absorbed, while the portion of those beams being discharged out of the light guide module and then enter the light splitting module. The light splitting module is functioned for splitting the plural beams.08-30-2012
20110013418Apparatus for Efficiently Coupling Light from a Light Source into a Thin Object - An apparatus for efficiently coupling light from a light source into a thin object such as a rod or a sheet is disclosed. In an embodiment, the apparatus comprises a sheet and a linear light source placed along the edge of the sheet. The light from linear light source is coupled into the sheet using one or more concentrator blocks. In another embodiment, the apparatus comprises a rod and a point light source placed near one end of the rod. The light from point light source is coupled into the rod using one or more concentrator blocks.01-20-2011
20110013417LUMINAIRE HAVING A TWO-WAY WAVEGUIDE - A luminaire includes a waveguide having first and second opposing ends and first and second opposing sides between the first and second ends. The waveguide is configured to totally internally reflect light propagating through the waveguide in a first direction and direct light propagating through the waveguide in a second direction through at least one of the first and second sides. A reflective body is coupled to the second end of the waveguide and configured to reflect light propagating towards the second end of the waveguide such that the light propagates towards the first end of the waveguide.01-20-2011
20110013416LIGHT GUIDE PLATE AND DISPLAY APPARATUS HAVING THE SAME - A light guide plate includes at least one incident surface into which light is incident, an exit surface at least one end of which is connected the incident surface and through which the light is output, an opposite surface spaced apart from the exit surface and opposing the exit surface, and a plurality of reflective patterns extending from the exit surface toward the opposite surface. When a direction from the exit surface to the opposite surface is referred to as a first direction, a direction perpendicular to the incident surface is referred to as a second direction, and a direction parallel to the incident surface and perpendicular to the first direction is referred to as a third direction, a length of each reflective pattern in the first direction is smaller than a distance between the exit surface and the opposite surface, and a length of each reflective pattern in the second direction is larger than a length of each reflective pattern in the third direction.01-20-2011
20130063971BACKLIGHT MODULE - A backlight module includes a light guide plate, a first light source device, and a second light source device. The first light source device is disposed adjacent to a first side surface of the light guide plate and has at least one first polarized light source for emitting a first polarized light beam. The second light source device is disposed adjacent to a second side surface of the light guide plate and has at least one second polarized light source for emitting a second polarized light beam. The light guide plate includes a first polarized light transmitting region adjacent to the second light source device and a second polarized light transmitting region adjacent to the first light source device.03-14-2013
20090010022MULTI-FUNCTIONAL LED LAMP - A multi-functional LED lamp is mainly composed of a lamp base, an illuminant device, a light guide device and a lampshade. The illuminant device is provided with plural LED bulbs planted on a laminate that is fixed on the lamp base with a heat-conductive medium spread in between. Heat generated by the illuminant device is dispersed by the lamp base. The light guide device is transparent, placed at a place where the illuminant device is to emit, used to conduct the light beams and promote its brightness. The lampshade is covered on the light guide device and the illuminant device. With features of low energy consumption, long service life and high luminous efficiency for LEDs and a good cooling member, the LED lamp is really energy saving and high-efficient.01-08-2009
20120113676FREE FORM LIGHTING MODULE - The invention provides an illumination device (05-10-2012
20120113675LAMP DEVICE WITH COLOR-CHANGEABLE FILTER - A lamp device includes a supporting frame, a light emitting diode (LED) array source, a light filter, two end caps and two couples of electrodes. The LED array source is disposed on the supporting frame. The light filter is arc-shaped and combined with the supporting frame as a tubular structure, wherein the arc surface of the light filter is a light emitting surface of the LED array source. The light filter is used for absorbing a ray in a specific wavelength range of the emitting light of the LED array source. The two end caps are disposed at two ends of the tubular structure respectively. The two couples of electrodes are disposed at two ends of the tubular structure and mounted on the two end caps respectively for electrically connecting to the LED array source.05-10-2012
20120113674BACKLIGHT MODULE AND DISPLAY APPARATUS - The present invention provides a backlight module and a display apparatus. The backlight module comprises a casing, a light guide plate and at least one light source. The light guide plate is disposed in the casing and includes a light output surface and at least one positioning convex portion. The positioning convex portion protrudes from the light output surface. The light source is disposed at one or more sides of the light guide plate. The present invention can use the positioning convex portion to simplify the assembly structure and process of the display apparatus.05-10-2012
20100085771LIGHT GUIDING PLATE - A light guiding plate includes a light guiding plate body and a plurality of total internal reflection destruction materials. The light guiding plate body has a first surface and a second surface opposite to the first surface. The first surface has a first microstructure array. The material of the total internal reflection destruction materials is different from the material of the light guiding body. The total internal reflection destruction materials are unevenly distributed on the first surface and/or the second surface.04-08-2010
20130163278ELECTRONIC DEVICE HAVING A FLEXIBLE SCREEN, A BACKLIGHT MODULE AND A LIGHT GUIDE PLATE - An electronic device includes a base having two opposite sidewalls, two carriers connected pivotally and respectively to the sidewalls, and two light guide plates respectively disposed on the carriers. The carriers are rotatable relative to the base between a first position, where the carriers cooperatively define a carrier surface, and a second position, where the carriers are parallel to each other. A flexible screen is superposed on the light guide plates, is expanded to a planar state when move along with the carriers to the first position, and is folded when move along with the carriers to the second position.06-27-2013
20100302800Back light module and light guide plate thereof - A light guide plate adapted to a backlight module is provided. The backlight module has a plurality of point light sources providing a light beam of a predetermined wavelength. The light guide plate includes a light emitting surface, a bottom opposite to the light emitting surface, a light incident surface connecting the light emitting surface and the bottom, a plurality of grating structures, and a plurality of diffusion dots. The light incident surface is near the point light sources. The diffusion dots are disposed on the bottom. At least portions of the grating structures are disposed on the light incident surface. Each of the grating structures has a plurality of concave parts and a plurality of protruding parts. Each of the concave parts is disposed between two neighboring protruding parts. A ratio of the predetermined wavelength to a pitch between two neighboring protruding parts is ranged between 1.2 to 1.3.12-02-2010
20100014313DISPLAY - A display comprises: a single-view image display panel (01-21-2010
20110280042MICROPERFORATION ILLUMINATION - Methods and aparatuses disclosed herein relate to backlit visual display elements. A visual display element may include a base layer defining one or more microperforations and a light guide coupled to a light source. The light guide may be positioned adjacent the base layer and include one or more microlenses in alignment with the one or more microperforations along at least one vertical axis.11-17-2011
20110280043CAVITY REFLECTOR LIGHT INJECTION FOR FLAT PANEL DISPLAYS - A light mixing system includes a transparent waveguide having a reflectorized edge, a light input edge and a light output edge opposite the reflectorized edge. The light input edge receives light of different colors from two or more light sources. The received light of different colors is totally internally reflected from opposite major surfaces of the waveguide. Formed inside the waveguide are a plurality of cavities bounded by walls substantially parallel to the edges and substantially orthogonal to the major surfaces of the waveguide. Interaction of the received light of different colors with one or more of the cavities and the reflectorized edge mixes the light of different colors before exiting the light output edge.11-17-2011
20110085350LIGHT GUIDE PLATE AND BACKLIGHT MODULE - A light guide plate includes a transparent substrate and a plurality of micro structures. The transparent substrate has a first surface and a second surface opposite the first surface, and the micro structures are disposed at least on the first surface of the transparent substrate and are separate from each other. Each of the micro structures includes a first coating layer and a second coating layer. The first coating layer is formed on the first surface and includes an adhesive material. The second coating layer is formed on at least a part of the first coating layer and includes a light-diffusing material.04-14-2011
20110286238SURFACE LIGHT SOURCE DEVICE - A light guide plate includes a light introducing portion which is positioned facing a point light source and which confines light, and a light guide plate body which is thinner than a maximum thickness of the light introducing portion and which causes a light exit means to emit the confined light outward. The light introducing portion has an inclined face which is inclined from a portion having the maximum thickness to a surface of the light guide plate body. The inclined face includes a directivity converting pattern for converting a directional characteristic of the light that has entered the light introducing portion. The directivity converting pattern's structure includes a plurality of V-shaped grooves. An inscribed circle of the directivity converting pattern passes through both ends of a light exit window of the point light source.11-24-2011
20110286237SURFACE LIGHT SOURCE DEVICE - A light guide plate is formed of a light introducing part positioned to face a point light source for confining light and a light guide plate body having a thickness smaller than the thickness of an end of the light introducing part on a point light source side and causing the confined light to be output from a light exit surface to outside. The light introducing part has an inclined surface, and a directivity conversion pattern formed on the inclined surface. The directivity conversion pattern is configured by arranging V grooves in parallel to each other, each having a vertical angle of 120°, and each extends in a direction approximately perpendicular to a light incidence end face of the light guide plate. The length of the inclined surface in a inclination direction where part of light incident to the light introducing part enters the inclined surface at least twice.11-24-2011
20110286235BACKLIGHT MODULE - A backlight module includes a back plate, a light guide plate, a heat insulation layer, a heat dissipation member, and a light source device. The back plate has a first surface, a second surface opposite to the first surface, and an opening passing through the back plate. The light guide plate is disposed on the first surface, the heat insulation layer is disposed on the second surface, and the heat dissipation member is disposed on the heat insulation layer. The light source device is connected to the heat dissipation member and protrudes from the first surface to face the light guide plate through the opening.11-24-2011
20110286236Light Source with Light Recovery Mechanism - A light source with a light recovery mechanism is disclosed. In one embodiment, the system comprises a light source placed within a mirrored enclosure. The light source is used to illuminate a light guide. All of the light entering the light N guide might not be utilized. Some of the light might get reflected back in the direction of the light source, or may travel to the other end of the light guide. The mirrored enclosure of the light source reflects this light back into the light guide. Thus the light source placed within a mirrored enclosure acts as a light source emitting light into a light guide and also redirects light coming out of the light guide back into the light guide.11-24-2011
20110299296BACKLIGHT MODULE AND HEAT DISSIPATION MODULE - A backlight module includes a back plate having a trench, a light guide plate disposed on the back plate, a reflecting sheet disposed between the back plate and the light guide plate, a heat dissipation module, and a light emitting element. The heat dissipation module includes a heat dissipation element, a heat conducting element, and a position-limiting element. The heat dissipation element is disposed on the back plate. The heat conducting element is disposed in the trench. One end of the heat conducting element is aligned with the heat dissipation element. The first position-limiting element is detachably assembled in the trench and supports the reflecting sheet. One section of the heat conducting element is pressed onto a bottom wall of the trench by the first position-limiting element. The light emitting element is disposed on the heat dissipation element and faces one side of the light guide plate.12-08-2011
20110292678LED BACKLIGHT MODULE - An LED backlight module includes at least one LED and a light guide plate. The light guide plate includes a light incident surface, a light emitting surface connected to the light incident surface, and a bottom surface parallel to the light emitting surface. The at least one LED is placed on the light incident surface and spaced at regular intervals. The light from the at least one LED enters the light guide plate from the light incident surface and is reflected to the light emitting surface by the bottom surface. The light guide plate defines a plurality of concave dots on the bottom surface. The bottom surface is divided into a plurality of discontinuous dot zones. In the dot zone closest to the incident surface, proximity of the dot to the LED decreases the depth and the distribution density of the dots.12-01-2011
20100124075Edge Type Back Light Module and Display Device Using the Same - An edge type back light module and a display device using the same are provided. The edge type back light module includes a light guide plate (LGP), a light source and a frame. The LGP has a light-receiving surface, a light-emitting surface and a light-reflecting surface opposite to the light-emitting surface. The light-emitting surface faces the display panel. The light source is adjacent to the light-receiving surface for emitting a light. The frame has a frame surface and a light guide portion. After a portion of the light contacts the light guide portion, the light guide portion disposed on the frame surface guides the portion of the light to be emitted from the light-emitting surface. A predetermined angle is contained between the outgoing direction of the portion of the light emitted from the light-emitting surface and the normal direction of the light-emitting surface.05-20-2010
20110149594Light-emitting device, light source and method of manufacturing the same - A light-emitting device includes a light source including an element mounting substrate, an LED element mounted thereon by flip-chip connection and a sealing portion for sealing the LED element on the element mounting substrate, and a light guide plate including a housing hole for housing the light source. The housing hole extends from one surface side to another surface side of the light guide plate and an area of an inner surface thereof on which light is incident from the light source is parallel to a thickness direction of the light guide plate. The light source is housed in the housing hole so that the element mounting substrate is located on the other surface side of the light guide plate, emits light toward the one surface side of the light guide plate in the housing hole and the inner surface side of the housing hole, and has an optical axis parallel to the thickness direction of the light guide plate. A solid angle of the inner surface of the housing hole with respect to the center of an upper surface of the light source is not less than 4.44 steradians.06-23-2011
20120294032Backlight Module with Three-Dimensional Circuit Structure - The present invention relates to a backlight module with three-dimensional circuit structure, comprising: a housing, a thermal conductive material, a three- dimensional circuit module, a plurality of light-emitting devices, a reflective layer, a light guide plate, and a thermal conductive layer, wherein a main body of the three- dimensional circuit module has a plurality of concave holes in the surface thereof, and a three-dimensional circuit layer is disposed on the surface of the main body, the side walls of the plurality of concave holes, and the bottoms of the concave holes; in addition, the light-emitting devices are respectively disposed in the concave holes by way of being welded on the welding points; Therefore, the complete circuit can be disposed in the limit-sized main body, so that, the backlight module with three-dimensional circuit structure can be applied to a thin liquid crystal display device.11-22-2012
20130215642Portable Computer Housing with Integral Display - An electronic device such as a portable computer may have a housing with a rectangular recess in which layers of display structures such as a light guide panel layer and other light guide structures are directly mounted without intervening chassis members. Mating alignment features in the housing and display structures may be used to align the display structures relative to the housing. A display may be formed from glass layers such as a color filter glass layer and a thin-film transistor glass layer. Backlight for the display may be generated by an array of light-emitting diodes. The light guide panel may direct light from the light-emitting diodes through the glass layers. A clamp may be used to hold the light-emitting diodes and light guide structures in place in the recess. An undercut in the housing may also hold the light guide structures in place.08-22-2013
20130215643LIGHTING DEVICE WITH A WAVEGUIDE PLATE - The invention provides a lighting device comprising (a) a transparent waveguide plate (08-22-2013
20130215640LIGHT GUIDE PLATE AND METHOD OF MANUFACTURING SAME - An exemplary light guide plate includes a top light emitting surface, a bottom surface, and a light incident surface. The light incident surface is between the light emitting surface and the bottom surface. The bottom surface defines a plurality of hemispherical micro grooves arranged in an array, a maximum depth of each micro groove along a direction perpendicular to the bottom surface is H, each micro groove has a circular opening, a diameter of the opening is D, and D:H=10:1.08-22-2013
20130215641BACKLIGHT MODULE - A backlight module includes a light guide plate, a light source disposed at a side of the light guide plate, a diffuser sheet positioned over the light guide plate but not directly contacting the light guide plate, and a light mixing space positioned between the light guide plate and the diffuser sheet so that light emitted from the light guide plate mixes in the light mixing space before being emitted out of the backlight module.08-22-2013
20110267837BACKLIGHT UNIT AND DISPLAY DEVICE HAVING THE SAME - A backlight unit is disclosed. The backlight unit includes a light emitting device array including a plurality of light emitting devices, an optical sheet to transmit light emitted from the light emitting device array, a frame to support the light emitting device array and the optical sheet, and at least two heat dissipating members placed on the frame in an emission direction of light from the light emitting device array. The heat dissipating member disposed at the center has a greater area than the heat dissipating member disposed at the perimeter.11-03-2011
20120294034DISPLAY APPARATUS - A display apparatus includes a light source and a light guide plate including a light incident surface facing the light source and which receive the light, an opposite surface opposite to the light incident surface and which reflects the light and has an arc shape, connection surfaces at opposing sides of the light incident surface and which connect the light incident surface and the opposite surface, an upper surface connected to the light incident surface, the opposite surface and the connection surfaces and which outputs the light, and a lower surface opposite to the upper surface. The light incident surface of the light guide plate includes a first surface extending in a predetermined direction, and second surfaces inclined from the first surface in an area corresponding to the light source such that an optical recess having a polygonal pyramid shape is defined by the second surfaces.11-22-2012
20120294033Backlight Module with Three-Dimensional Circuit Structure and Extrusion Housing - The present invention relates to a backlight module with three-dimensional circuit structure and extrusion housing, comprising: an extrusion housing, a three-dimensional circuit layer, a plurality of light-emitting devices, a reflective layer, a light guide plate, and a thermal conductive layer, wherein an installation portion of the extrusion housing has a plurality of concave holes in the first surface thereof, and the three-dimensional circuit layer is disposed on the first surface of the installation portion, the side walls of the plurality of concave holes, and the bottoms of the concave holes; Thus, the complete circuit can be disposed in the limited-sized installation portion; Moreover, moreover, the three-dimensional circuit layer further has a plurality of welding points disposed on the bottoms of the concave holes, such that the light-emitting devices can be respectively disposed in the concave holes by way of being welded on the welding points; So that, when the liquid crystal display device is hit, the extrusion housing may protect the light-emitting devices from damage.11-22-2012
20110199783Light Guide Plate and Back Light Module Having the Same - The present invention relates to a light guide plate and back light module having the same. The light guide plate includes a light guide plate body and a plurality of microreliefs. The light guide plate body has a light-emitting surface and a reflecting surface. The microreliefs are disposed on the reflecting surface. Each of the microreliefs has an outer surface and a base area. The outer surface is a curved surface, and the base area contacts the reflecting surface. A ratio of the totally height of each of the microreliefs to the diameter of the base area of each of the microreliefs is between 1/7 and ¼. As a result, the light guide plate has higher light extraction efficiency.08-18-2011
20080212338PRISM SHEET, A BACK-LIGHT UNIT USING SAID PRISM SHEET, AND A TRANSMISSION TYPE LIQUID CRYSTAL DISPLAY DEVICE - [Objective] Providing a prism sheet, a back-light unit using the prism sheet, and a transmission type liquid crystal display device. 09-04-2008
20100110724THIN FILM LIGHT DIFFUSION GUIDE - A light guide device and method for making the same are disclosed. A light guide includes a thin film of light transmitting material, and a light-emitting device connected to a first edge of the thin film. The light guide further includes a printed pattern abutting a first side of the primary guide and comprised of light reflecting ink and arranged to reflect the light from the light emitting device, and a guide frame framing the remaining edges of the primary guide other than the first edge.05-06-2010
20100061115ONE-WAY SEE-THROUGH ILLUMINATION SYSTEM - A one-way see-through illumination system is constructed from a light guide panel, a front-illuminable image film, and a light injector. The light injector injects light into the light guide panel at a suitable angle for total internal reflection of the injected light at the surfaces of the light guide panel. The image film includes a half-toned front-illuminable image pattern that extracts light from the light guide panel. When active, light from the light guide panel front illuminates the image pattern for viewing by a front-side view, while a back-side viewer can see through the image pattern.03-11-2010
20100061116BACKLIGHT MODULE - A backlight module includes a light guide plate, a light source disposed at a side of the light guide plate, a diffuser sheet positioned over the light guide plate but not directly contacting the light guide plate, and a light mixing space positioned between the light guide plate and the diffuser sheet so that light emitted from the light guide plate efficiently mixes in the light mixing space before entering the diffuser sheet and being emitted out of the backlight module.03-11-2010
20110267838Optic System for Light Guide with Controlled Output - A light guide with optics guides light exiting the guide. The device achieves accurate control of the reflected light by extracting light from a limited area of the light guide. The configuration of the reflectors used for the selective extraction determines the nature of the output light. The reflectors may be located on a side of the light guide opposite to an output side of the light guide.11-03-2011
20120170310LIGHT GUIDE WITH UNIFORM LIGHT DISTRIBUTION - This disclosure provides systems, methods and apparatus for providing illumination by using a light guide to distribute light. In one aspect, the light guide has a light input edge into which light is injected and transverse edges transverse to the light input edge. The transverse edges are smooth and act as specular reflectors. The light input edge is rough and provides a diffusive interface. The light emitters are adjacent and centered along the light input edge, with the pitch of the light emitters being about ΔL, where ΔL is the distance between the transverse edges divided by the number of light emitters. The light guide can be provided with light turning features that redirect light out of the light guide. In some implementations, the redirected light can be applied to illuminate a display.07-05-2012
20110205755SURFACE LIGHT SOURCE DEVICE AND DISPLAY DEVICE - Provided is a surface light source device including a light guide plate, and at least one point light source that is disposed to be adjacent to an incidence surface of the light guide plate and irradiates the incidence surface with a light beam. The light guide plate includes, at least at a position at which the point light source is disposed, at least one projection projecting from the incidence surface toward a direction in which the point light source is disposed.08-25-2011
20120033445LUMINAIRE WITH FUNCTIONALITY-ENHANCING STRUCTURE - A luminaire (02-09-2012
20080266897Surface illumination device and a liquid crystal display device using such a surface illumination device - A surface illumination device is provided with a laser light source capable of emitting a laser light, an incident surface on which the laser light is incident, a light guiding plate having a principal surface from which the laser light emerges as a surface emergent light, and an irradiating member capable of irradiating the laser light from the laser light source over a specified range extending in the longitudinal direction of the light guiding plate.10-30-2008
20080266895OPTICAL PLATE AND BACKLIGHT MODULE USING THE SAME - An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a first surface, a second surface, a plurality of microstructures, a plurality of elongated V-shaped protrusions and a lamp-receiving portion. The second surface is opposite to the first surface. The microstructures are formed at the first surface. Each microstructure includes at least three side surfaces connected with each other, a transverse width of each side surface decreasing along a direction away from the first surface. The elongated V-shaped protrusions are formed at the second surface. The lamp-receiving portion is defined in at least one of the first surface and the second surface. A backlight module using the present optical plate is also provided.10-30-2008
20110205754BACKLIGHT UNIT AND DISPLAY DEVICE - Disclosed are a backlight unit and a display device. The backlight unit includes a bottom cover, a light emitting module including a plurality of light sources in the bottom cover, a light guide plate at one side of the light emitting module in the bottom cover, an optical sheet on the light guide plate, a support member coupled with the bottom cover, in which a part of the support member is placed on the optical sheet to make contact with a top surface of the optical sheet so that a bottom surface of the optical sheet contacts to the light guide plate, a top cover provided on the support member and coupled with the bottom cover. The light sources are interposed between the support member and the bottom cover.08-25-2011
20100142219Structure For Eliminating Bright Line Of Tiled Backlight Module - A structure for eliminating bright lines of a tiled backlight module is provided. The structure includes a light guide plate, and a plurality of light sources. The light guide plate includes a plurality of rows of optical elements. The rows of optical elements extend in parallel. The light sources are provided at least one side of the light guide plate for projecting a light into the light guide plate and generating a regular but non-uniform light outputting performance of the light guide plate. Therefore, a brightness of areas where the optical elements are located is higher than the rest areas, so that the light guide plate achieves a regular but non-uniform light emitting performance. Accordingly, the bright lines occurred at joints between two light guide plates are enshrouded by the high brightness areas, and become hard to identify or even undistinguishable, thus “eliminated”.06-10-2010
20090129115Illumination apparatus - An illumination apparatus, comprising at least one light emitting source embedded in a waveguide material is disclosed. The waveguide material is capable of propagating light generated by light emitting source(s), such that at least a portion of the light is diffused within the waveguide material and exits through at least a portion of its surface.05-21-2009
20130121020BACK-LIGHT MODULE - A back-light module including a light guide plate (LGP), first light-emitting devices, and second light-emitting devices is provided. The LGP has a top-emitting surface, a bottom surface and a side surface. The LGP has at least one indentation. The indentation has a first light-incident sidewall and a pair of second light-incident sidewalls. The second light-incident sidewalls are located on two sides of the first light-incident sidewall and adjacent to the first light-incident sidewall. Normal vectors of the second light-incident sidewalls and the first light-incident sidewall are not parallel. The first light-emitting devices are located in the indentation, and a first light beam propagating toward the first light-incident sidewall is emitted from each of the first light-emitting devices. The second light-emitting devices are located in the indentation, and a second light beam propagating toward one of the second light-incident sidewalls is emitted from each of the second light-emitting devices.05-16-2013
20130121021COMPOSITE OPTICAL FILM AND BACKLIGHT MODULE USING THE SAME - The present disclosure provides a composite optical film including a brightness enhancement film, a high refractive-index layer, and an intermediate layer. The brightness enhancement film has a plurality of brightness enhancement structures parallel to each other, and a top surface and a bottom surface opposite to each other. The brightness structures are disposed on the top surface. The high refractive-index layer is disposed on the bottom surface, and includes a film and a plurality of inorganic nano-particles disposed within the film. The intermediate layer is disposed between the brightness enhancement film and the high refractive-index layer.05-16-2013
20110141765PLANAR LIGHT SOURCE MODULE AND OPTICAL FILM - A planar light source module including a light guide plate (LGP), a light source, an optical film, and a reflector is provided. The light source for emitting a light beam is disposed adjacent to the side light-incident surface, wherein the light beam enters the LGP from a side light-incident surface and leaves the LGP from a light-emergence surface in an emergence angle θ1, θ1≧70 degrees. The optical film is disposed above the LGP to collimate the light beam from the LGP. The optical film includes a prism layer module and a bonding layer module stacked alternately. The prism layer module comprises prism layers and each prism layer includes micro-prisms. The bonding layer module comprises at least one bonding layer bonded with two prism layers adjacent thereto. The refraction index of the prism layers is greater than that of the bonding layer. The reflector is disposed under the bottom surface.06-16-2011
20110141764BACKLIGHT MODULE - A backlight module is provided. The backlight module has a reflective chamber and a light source. The reflective chamber includes a bottom reflector, a top reflector, at least a light entrance, and a plurality of light emitting openings disposed on the top reflector. The light source is disposed corresponding to the light entrance. The number of the light emitting openings per unit area in a region near the light source is less than the number of the light emitting openings per unit area in another region far from the light source.06-16-2011
20110228556LIGHT SOURCE MODULE - A light source module including a light guide plate (LGP) and a light source device is provided. The LGP has a light exiting surface, a light reflecting surface opposite to the light exiting surface and at least one light entering surface connecting the light exiting surface and the light reflecting surface. The LGP has light reflective structures disposed on the light reflecting surface and each including a closed light active region and protrusions disposed in the light active region. The light active region and the light reflecting surface are not coplanar. The protrusions extend outward from the LGP. The light source device is disposed corresponding to the light entering surface. The light source device provides a light entering the LGP from the light entering surface and exiting the LGP from the light exiting surface after the light is redirected by one of the protrusions on the light reflecting surface.09-22-2011
20080266896OPTICAL PLATE AND BACKLIGHT MODULE USING THE SAME - An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of spherical protrusions, a diffusion layer, and at least one lamp-receiving portion. The bottom surface is opposite to the light output surface. The diffusion layer is formed on the light output surface. The spherical protrusions are formed at the bottom surface. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.10-30-2008
20090213618ILLUMINATING DEVICE - An illuminating device (08-27-2009
20080259637OPTICAL PLATE AND BACKLIGHT MODULE USING THE SAME - An exemplary optical plate (10-23-2008
20120195068LIGHT-EMITTING DEVICES FOR LIQUID CRYSTAL DISPLAYS - A lighting system includes a panel having an edge, the edge having a thickness defined between a front surface of the panel and a back surface of the panel, the panel configured to propagate light therein. The lighting system further includes a first light emitting diode (LED) light source and a second LED light source disposed in serrated arrangement along the edge of the panel so that light emitted from respective light emitting surfaces of the light sources impinges on the edge of the panel and enters the panel through the edge and so that the light emitting surfaces lie in respective planes that are not parallel.08-02-2012
20120195067LIGHT-GUIDING PLATE AND BACKLIGHT MODULE - A light-guiding plate includes a main unit and a reflecting unit. The main body of the main unit has a light-receiving surface, a light-reflecting surface, and a light-projecting surface. The reflecting unit includes a plurality of reflecting microstructures formed on the light-reflecting surface. Each reflecting microstructure has a first reflecting curved surface, and the first reflecting curved surface of each reflecting microstructure has a first reflecting curved line shown on the lateral surface thereof. The first reflecting curved line of each first reflecting curved surface is substantially composed of a first base point as an initial point on the first bottom portion of the light-reflecting surface, a second base point as an end point on the second bottom portion of the light-reflecting surface, and a first curve track connected from the first base point to the second base point and passing through a plurality of first trajectory points.08-02-2012
20100177535SURFACE ILLUMINATING LIGHT SOURCE DEVICE AND SURFACE ILLUMINATING DEVICE - Uniform illuminating light is obtained on a surface at a prescribed distance from a radiation surface without increasing the thickness in a light radiation direction by using the light from the light source highly efficiently. A surface illuminating light source device is provided with a light source for radiating light; a light guide body propagating light from the light source and having a radiation surface at a prescribed position in the radiation direction; a casing closing the light guide body except the radiation surface and having the light source arranged substantially at the center; an inner reflection section arranged between the casing and the light guide body and having a reflection surface which reflects light propagating inside the light guide body; and a radiation side reflection section having an outer reflection section which is arranged on the radiation surface and has a reflection surface that reflects light propagating inside the light guide body at a prescribed rate and an opening section which is formed on the outer reflection section and through which reflection light reflected at least once on one of the reflection surfaces among the light from the light source passes.07-15-2010
20100002462Optical plate and backlight module using the same - An optical plate includes a first surface, an opposite second surface, a plurality of triangular pyramidal micro-depressions formed in the first surface, and a plurality of elongated arc-shaped depressions formed in the second surface. A backlight module using the present optical plate is also provided.01-07-2010
20090316430BACKLIGHT MODULE - A backlight module including at least one light emitting element and a brightness enhancement diffuser is provided. The light emitting element is capable of emitting a light beam. The brightness enhancement diffuser is disposed in the transmission path of the light beam and has a first surface and a second surface opposite to the first surface. The light beam passes through the first surface and the second surface. The brightness enhancement diffuser includes a plurality of protrusions and a plurality of recesses. The protrusions are disposed on the first surface, and each of the protrusions has a curved surface. The recesses are disposed on the first surface, and each of the recesses has at least one plane surface. Each of the recesses is surrounded by several of the protrusions.12-24-2009
20100259948BACKLIGHT MODULE - A backlight module includes a light guide, a mixing light guide plate, and a plurality of light sources. The first light guide comprises a first side surface. The mixing light guide plate comprises an incident surface with anomalous surface and an emergent surface with fog surface. The mixing light guide plate is set on the first side surface. A plurality of light sources disposed corresponding to the incident surface, with light emitted there from and entering the mixing light guide plate through the incident surface then exits the mixing light guide plate through the emergent surface, finally, entering the light guide through the first side surface.10-14-2010
20100220496DISPLAY APPARATUS AND METHOD OF ASSEMBLING THE SAME - In a display apparatus and a method of assembling the display apparatus according to one or more embodiments, a printed circuit board is electrically connected to a lower end of a display panel and disposed in a rear surface of a container. A flexible printed circuit board is contained in the container, and light sources are mounted on the flexible printed circuit board. A connection film electrically connecting the printed circuit board and the flexible printed circuit board is disposed on a bottom portion of the container, and one end of the connection film passes through a fixing hole formed through the bottom portion. The one end of the connection film is electrically connected to the printed circuit board disposed in the rear surface. Thus, movement of the connection film may be limited by an inner wall defining the fixing hole.09-02-2010
20100232177LIGHT EMITTING DEVICE PACKAGE AND METHOD OF FABRICATING THE SAME - A light emitting device package and a method of manufacturing the light emitting device package are provided. A base is first provided and a hole is formed on the base. After a light emitting portion is formed on the base, a mold die is placed on the light emitting portion and a molding material is injected through the hole. The mold die is removed to complete the package.09-16-2010
20100208491LIGHT EMITTING MODULE AND DISPLAY DEVICE HAVING THE SAME - A light emitting module and a display device including the light emitting module are provided. The light emitting module may include a metal plate, a board, and a plurality of light emitting diodes. The board may be attached to a side surface of the metal plate, and light emitting diodes may be arranged on the board.08-19-2010
20110176328UV LED Based color pixel backlight incorporating quantum dots for increasing color gamut of LCD - A ultra-violet based color pixel backlight system for color filter-less Liquid Crystal Display, comprising multiplicity of LEDs, emitting UV or NUV light in the wavelength range of 150 nm to 390 nm, assembled at one edge of a UV transmitting light guide, which has other three edges and bottom surface coated with UV reflecting layer and its top surface roughened with UV and NUV extracting pixel patterns that contain layers of quantum dots that emit different colors of light in red, blue and green region with sharp spectrum, to increase the color gamut on LCD screen, upon excitation by UV or NUV light. The formed pixels contain reflective islands, underneath the layers of quantum dots, to reflect the visible rays, generated by the pixelated quantum dots, towards the LCD and suppress the visible light leaving the pixel as well as suppress the visible light from adjacent pixels entering the pixel. Thus suppressing the color mixing that could occur without the incorporation of reflective islands. LCD without color filters, a micro-lens sheet and the light guide with color pixels are placed in substantial alignment to provide a color pixel backlight system for LCD. Thus red, blue and green pixels of light from the light guide passes through the intended red, blue and green pixels of the color filter-less LCD, resulting in color pixel backlighting that enhances the optical efficiency of LCD as well as the color gamut on LCD screen.07-21-2011
20120033444LIGHT EMITTING DEVICE, LIGHT EMITTING DEVICE PACKAGE, AND DISPLAY DEVICE THEREWITH - A light emitting device includes an active layer having quantum walls and quantum wells, a first conductive type semiconductor layer on one side of the active layer, a second conductive type semiconductor layer on the other side of the active layer, and an interfacial layer arranged between the active layer and the first conductive type semiconductor layer or between the active layer and the second conductive type semiconductor layer, wherein the interfacial layer includes barrier layers and basal layers provided between the barrier layers, wherein an energy bandgap of each of the barrier layers increases from the first conductive type semiconductor layer or the second conductive type semiconductor layer to an active layer direction linearly, and greatest energy bandgaps of the barrier layers are different from one another.02-09-2012
20110032727BACKLIGHT REFLECTORS HAVING A PRISMATIC STRUCTURE - A back reflector for a lightguide in a turning film backlight includes a prism film layer in direct contact with a reflective layer. The lightguide includes a light guiding region having a refractive index that is substantially spatially uniform. The reflective layer may be specular or diffuse and may include a multilayer polymeric film.02-10-2011
20130128608LED LIGHT FIXTURE - The instant disclosure relates to a LED light fixture, which includes a mounting seat, a lighting module, a light guiding assembly, a retainer, and a panel. The mounting seat has a base and an annular side wall cooperatively defining a recess. The lighting module abuts the side wall and is disposed around the light guiding assembly. The retainer abuts the light guiding assembly and retains the light guiding assembly on the mounting seat. The panel is disposed between the light guiding assembly and the base, with the periphery of the panel abutting the engaging shafts. Thereby, the interaction between the retainer and the mounting seat enables the user to assemble or dismantle the light fixture with more ease.05-23-2013
20130128609LIGHT GUIDING PLATE, BACKLIGHT MODULE AND DISPLAY DEVICE - A light guiding plate and a backlight module and a display device applying the light guiding plate are provided, in which a structure of prisms on a light emergence surface of the light guiding plate is designed by, for example, adopting a mixed structure of prisms in different specifications, regulating the specifications of the prisms, such as a vertex angle and a corresponding reprint ratio, varying the reprint ratio of the prisms with respect to a distance from a light incident surface of the light guiding plate, or combining the aforementioned design solutions, thereby adjusting a light emitting effect of the light guiding plate, increasing uniformity of backlight, and improving display quality of the display device.05-23-2013
20100302802ILLUMINATION DEVICES - Illumination device and methods of making the same are disclosed. In one embodiment, an illumination device includes a light source, a light guide having a first planar surface, a first end and a second end, and a length therebetween, the light guide positioned to receive light from the light source into the light guide first end, and the light guide configured such that light from the light source provided into the first end of the light guide propagates towards the second end, a plurality of light turning features that are configured to reflect light propagating towards the second end of the light guide out of the planar first surface, and one or more light redirection features configured to redirect light within the light guide at more useful angles.12-02-2010
20100302801LIGHT GUIDE PLATE AND BACKLIGHT SOURCE HAVING SAME - An exemplary light guide plate includes an light incident surface, an light emitting surface, a number of parallel V-shaped structures, and a Fresnel lens portion. The light incident surface is configured for receiving light beams. The light emitting surface is adjacent to the light incident surface, and configured for emission of the light beams. The V-shaped grooves are defined in the light incident surface and arranged perpendicular to the light emitting surface. The Fresnel lens portion is provided on the light incident surface between each two neighboring V-shaped grooves.12-02-2010
20110002141BACKLIGHT MODULE FOR LIQUID CRYSTAL DISPLAY - A backlight module for a liquid crystal display according to the present invention is provided. The backlight module includes a light guide plate, a light source, a first reflection sheet and a second reflection sheet. The light guide plate has an upper surface, a lower surface, and opposing first and second side surfaces. The light source is disposed on the first side surface of the light guide plate and comprises a plurality of point light sources. The first reflection sheet is disposed on the light source and the upper surface of the light guide plate to reflect light beams emitting from the light source to the light guide plate. The first reflection sheet includes a plurality of first portions, a plurality of second portions and a plurality of protrusion portions, wherein the first portions are positioned corresponding to the light source and arranged alternately with the second portions. The protrusion portions extend from the second portions toward the second side surface of the light guide plate. The second reflection sheet is disposed under the lower surface of the light guide plate.01-06-2011
20110242840LIGHT EMITTING DEVICE AND LIGHT UNIT HAVING THE SAME - Disclosed are a light emitting device and a light unit including the same. The light emitting device includes a body having a cavity with an open upper portion, a protrusion protruding from an upper portion of the body, a plurality of lead electrodes in the cavity, and a light emitting diode provided in the cavity and electrically connected to the lead electrodes.10-06-2011
20110242839NVIS COMPATIBLE BACKLIGHT DEVICE AND LCD USING THE SAME - A backlight device for a liquid crystal display containing a substantially planar light guide with a light emission surface and a light-collecting portion opposing the light emission surface. A pair of opposing side portions may define the periphery of the light guide. A first plurality of LEDs are placed so as to direct the emitted light into the light-collecting portion. An NVIS filter is preferably placed adjacent to at least one of the side portions. A second plurality of LEDs are placed to direct the emitted light through the NVIS filter and into a side portion of the light guide. Alternative embodiments can contain NVIS filters and LEDs along additional edge portions of the light guide. Some embodiments may use directing elements or slanted surfaces of the light guide to direct the light from the second plurality of LEDs into the edge portions of the light guide.10-06-2011
20100165659PLANAR LIGHT GUIDE AND DISPLAY DEVICE INCLUDING THE SAME - A planar light guide includes recesses formed in the upper and lower surfaces thereof. The recesses in the lower surface are perpendicular to the recesses in the upper surface. In a state in which light sources emit light into the planar light guide, when an X-direction driving mechanism is driven and the planar light guide is deformed in the X directions, the recesses in the upper surface are opened, so that the lower surface side can perform surface emission of light. When a Y-direction driving mechanism is driven and the planar light guide is deformed in the Y directions, the recesses in the lower surface are opened, so that the upper surface side can perform surface emission of light. By selectively driving the X-direction driving mechanism or the Y-direction driving mechanism, the position from which light is output, the amount of light, or the direction of light can be changed.07-01-2010
20100182799Planar light-emitting device, panel and display device - A planar light-emitting device includes: a light source; and a light guide member propagating light from the light source, wherein the light guide member is formed so that a light entrance portion on which light from the light source is incident is thicker than a body portion, and the light source includes a light-emitting member and a directivity member narrowing the directivity of light emitted from the light emitting member and allowing the light to be incident on the light entrance portion of the light guide member.07-22-2010
20110110115PLANAR LIGHT EMITTING DEVICE - A planar light emitting device (PLED) includes: a light guide plate (LGP) having upper/lower surfaces; a light source substrate (LSS) mounted with a point light source parallel with a side end of the LGP; a first chassis covering a back of the LSS and a lower surface of the LGP in parallel; and a second chassis having an emission opening; a light source member in a side surface of the PLED; and a fixing member on the side of the PLED with an inclined portion. The inclined portion of the fixing member is formed so pressing the fixing member moves the LGP toward the LSS, which is fixed between the side end of the LGP and the first chassis. Removing the fixing member forms a gap between the LSS and the side end surface of the LGP or the first chassis, and the LSS can exit the LSS take-out portion.05-12-2011
20110242841BACKLIGHT MODULE - The present invention relates to a backlight module and a manufacturing method thereof. The backlight module comprises a thin film unit, a light guide unit, an insulation layer and at least a light source. The thin film unit is installed with a first circuit. The light guide unit is installed with a second circuit. The insulation layer is installed between the thin film unit and the light guide unit. The light source is electrically connected to the first circuit, and the light thereof projects into the light guide unit.10-06-2011
20110032728Light Source Device, and Display Apparatus Provided with Such Light Source Device - A light source device includes a first light source group, a second light source group, a light guide body, and a light diffusion body. The light guide body includes a high light distribution region and a low light distribution region generated by the respective light sources of the second light source group. The high light distribution region includes a plurality of first portions. The low light distribution region includes a second portion between the first portions and a third portion. The presence ratio of the light diffusion body 02-10-2011
20110044071Display Device - A display device includes a light source assembly, a light guide plate (LGP), a lower receiving container, a reinforcing member, a display panel and an upper receiving container. The lower receiving container includes a first coupling portion formed on the first bottom surface. The reinforcing member includes a pressing down part structured to pressing down on an upper surface adjacent to a corner portion of the LGP and a fixing part integrally extending from an end portion of the pressing down part in parallel with a first sidewall of the lower receiving container to have a second coupling portion being coupled with the first coupling portion. The reinforcing member covers the light source assembly. The display panel is disposed on the LGP and the reinforcing member. The upper receiving container includes a third coupling portion coupled to the first coupling portion and the second coupling portion through a coupling member.02-24-2011
20090034288LIGHT EMITTING DIODE PACKAGE, DIRECT TYPE BACKLIGHT MODULE AND EDGE TYPE BACKLIGHT MODULE - An LED package includes a carrier, an LED chip and a light scattering material. The LED chip is disposed on the carrier, electrically connected with the carrier and adapted to emitting a light with wavelength λ02-05-2009
20120033443Scanning Backlight with Slatless Light Guide - A backlight includes a light guide and a first and second light source adapted for independent operation and arranged to inject a first and second light beam, respectively, into the light guide through different portions of the light injection surface. Each light source includes a lamp and a concave reflector to partially collimate light from the lamp. One major surface of the light guide includes prismatic structures that are parallel to a first axis. Another major surface of the light guide includes lenticular structures that are parallel to each other but perpendicular to the prismatic structures. The lenticular structures limit spatial spreading for light that remains in the light guide. Each light source cooperates with the light guide to provide light that is substantially laterally confined to a transverse band of the light guide, even though the light guide contains no gaps that define slats to accomplish such confinement.02-09-2012
20110242838DIFFUSION BAR WITH SPACER COLLAR RING - The present invention provides an integrated backlight illumination assembly for an LCD display comprising, a plurality of solid state light sources for providing a point light source and a plurality of light guide films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light sources to a uniform plane of light. The invention further provides at least one polymer diffusion bar covering said solid state light sources and spacer collar rings comprising an optical spacer, collar section and an anchoring feature, wherein the spacer collar rings are located around a perimeter of the diffusion bar.10-06-2011
20110122650Backlight unit and display device using same - A backlight unit arranged at the rear side of a liquid crystal panel for illuminating the liquid crystal panel. The backlight unit includes a light source for emitting light and a light guide plate. The light guide plate includes a light incident surface on which the light emitted from the light source is incident, a main reflection surface for internally reflecting the light incident on the light incident surface and a light launching surface from which the light reflected by the main reflection surface is launched toward the liquid crystal panel. The backlight unit further includes a frame for supporting the light guide plate and a substrate arranged at the opposite side of the frame from the liquid crystal panel and mounted with electronic parts. The light source is mounted to the substrate.05-26-2011
20110242842BACK LIGHT UNIT - A back light unit including a light emitting device assembly is disclosed. The light emitting device assembly includes a light emitting device module having a light emitting device, a light guide plate having a light incidence part disposed adjacent to the light emitting device module so that light generated from the light emitting device is incident upon the light incidence part and a light emission part from which the incident light is emitted, a reflective sheet provided at one side of the light guide plate, and a light adjustment part extending from the reflective sheet for adjusting a reflection amount of the light emitted from the light guide plate.10-06-2011
20110128756BACKLIGHT ASSEMBLY - A backlight assembly includes a plurality of point light sources, a light guide plate (“LGP”) and a printed circuit board (“PCB”). The LGP has a light incident face in which light is incident, a side surface extending from an edge portion of the light incident face, and a fixing groove which is formed from the side surface toward an inner portion thereof. The PCB includes a point light source disposing portion in which the point light sources are disposed along a first direction, an extending portion extending from the point light disposing portion along a second direction substantially perpendicular to the first direction, and a protrusion which is fixed at an end portion of the extending portion. The protrusion of the PCB is coupled with the fixing groove of the LGP.06-02-2011
20110075443LIGHT EMITTING UNIT, BACKLIGHT MODULE AND DISPLAY DEVICE - A light emitting unit includes a light bar set, a connecting mechanism and a closed-loop terminal. The light bar set includes a plurality of light bars, wherein each light bar includes a plurality of light emitting elements and a circuit board, and the light emitting elements are disposed on the circuit board. The connecting mechanism includes a plurality of connecting elements for electrically connecting the first one to the last one of the light bars in order. The connecting mechanism has a front end and a rear end. The closed-loop terminal is electrically connected to the rear end of the connecting mechanism, whereby the light bar set, the connecting mechanism and the closed-loop terminal are formed to a closed loop.03-31-2011
20110211365LIGHT GUIDE PLATE, AND BACKLIGHT UNIT - Provided are a light guide plate and a backlight unit. The backlight unit includes A light guide plate comprising a first light guide member having a first inclined plane and a second light guide member having a second inclined plane and having a refractive index different from that of the first light guide member, and the first light guide member located on the second light guide member to face the first inclined plane and the second inclined plane; an optical member on the light guide plate; a first light emitting module located at a lateral surface of the first light guide member; a second light emitting module located at a lateral surface of the second light guide member; and a reflective member located below the second light guide member.09-01-2011
20110085349OPTICAL FILM AND BACK LIGHT MODULE - An optical film includes a body and a plurality of first linear protrusions. The body has a first surface and a second surface opposite to the first surface. The first linear protrusions are disposed on the first surface, and each first linear protrusion is extended along a first direction and has a first curvy ridge line departing from the first surface, wherein the first curvy ridge lines are concave towards a fixed direction. When the first curvy ridge line is located on a suppositional plan, the suppositional plan is not parallel to the first surface. The above-mentioned optical film is not easy to be worn.04-14-2011
20100177534BACKLIGHT PANEL EMPLOYING WHITE LIGHT EMITTING DIODE HAVING RED PHOSPHOR AND GREEN PHOSPHOR - Disclosed is a backlight panel employing a white light emitting diode. The white light emitting diode includes a blue light emitting diode chip and red and green phosphors positioned over the blue light emitting diode chip. Accordingly, since the backlighting can be performed using white light with distinct red, green and blue wavelengths, the color reproducibility can be enhanced. Further, since the white light can be implemented with a single light emitting diode, the manufacturing costs and thickness of the backlight panel can also be reduced.07-15-2010
20100014311DEVICE FOR SIGNS - A device comprising the following parts; a light guiding plate in thermoplastic material; a source of light placed on at least one edge of the light guiding plate; a reflecting surface placed along the surface of the light guiding plate, a series of grooves being present on the lower surface, parallel to the light guiding plate edge on which there is the source of light; the grooves having: an hollow shape; the total groove surface, measured on the incision projections on the plate surface, comprised between 10% and 60% with respect to the plate surface; the width of each groove between 0.2 and 5 mm.01-21-2010
20110176327Planar lighting device and a method of producing the same - A planar lighting device in which transmittance adjusting members are not provided in a region extending a distance of Lmfp from an end of the light guide plate closer to the light entrance plane in a direction normal to the light entrance plane, where Lmfp is a mean free path of luminous flux emitted from the light source and admitted in the light guide plate through the light entrance plane.07-21-2011
20100135038FRONTLIGHTS FOR REFLECTIVE DISPLAYS - A frontlight illuminator arrangement for a reflective display that includes a light guide and a pair of light sources coupled to the light guide at an angle that is neither normal to or orthogonal to a primary axis of the display. The light is internally reflected along the light guide until it is coupled into an optical element of similar refractive index that is adjacent to the light guide in the vicinity of the display. The optical element includes a multi-faceted beam splitter that reflects light back through the light guide onto the display where an image is formed and reflected back through the light guide and beam splitter.06-03-2010
20110249468LIGHT EMITTING DEVICE AND LIGHT EMITTING DEVICE PACKAGE - A light emitting device includes a light emitting structure comprising a first conductivity type semiconductor layer, a second conductivity type semiconductor layer and an active layer disposed between the first conductivity type semiconductor layer and the second conductivity type semiconductor layer to emit a light of a first wavelength; and a re-emission layer disposed on the light emitting structure, the re-emission layer comprising a nitride semiconductor, wherein the re-emission layer absorbs the light of the first wavelength range and the re-emission layer emits a light of a second wavelength range longer than the first wavelength range, and the re-emission layer is configured of multi layers having different indium (In) compositions, respectively, and the indium content in the multi-layer is largest in a top layer of the multi-layers.10-13-2011
20110075442PORTABLE ELECTRONIC DEVICE - A portable electronic device includes a motherboard including at least one illuminator disposed thereon, a display screen parallel to the motherboard, and a light guide component disposed between the illuminator and the display screen. The light guide component includes a main body attached to a bottom surface of the display screen, and at least one foot portion extending from an edge of the main body corresponding to the at least one illuminator. The main body includes a light output surface facing the display screen. Each foot portion includes a distal end surface facing the illuminator to receive light emitted therefrom.03-31-2011
20100302803ILLUMINATION DEVICES AND METHODS OF FABRICATION THEREOF - Illumination devices and methods of making same are disclosed. In one embodiment, an illumination apparatus includes a light source, a light guide having a planar first surface, a first end and a second end, and a length therebetween, the light guide positioned to receive light from the light source into the light guide first end, and the light guide configured such that light from the light source provided into the first end of the light guide propagates towards the second end, and a plurality of light turning features that are configured to reflect light propagating towards the second end of the light guide out of the planar first surface of the light guide, each light turning feature having a turning surface and an interferometric stack formed on the turning surface.12-02-2010
20100277948LIGHT EMITTING DEVICE PACKAGE AND METHOD OF FABRICATING THE SAME - A light emitting device package and a method of manufacturing the light emitting device package are provided. A base is first provided and a hole is formed on the base. After a light emitting portion is formed on the base, a mold die is placed on the light emitting portion and a molding material is injected through the hole. The mold die is removed to complete the package.11-04-2010
20100254157Display Device and Backlight Unit - Disclosed are a display device and a backlight unit. The display device comprises a flexible light guide plate, a light source disposed at one side of the light guide plate, and a support member disposed in opposition to the light guide plate and the light source to support the light guide plate. The support member allows the light source and the light guide plate to have constant interval therebetween, and prevents the light source and the light guide plate from being tilted each other. The display device and the backlight unit ensure improved brightness and brightness uniformity.10-07-2010
20100097823LIGHT GUIDE PLATE AND BACKLIGHT MODULE - A light guide plate includes a plate-shaped transparent body and a plurality of stripe-shaped planar structures. The plate-shaped transparent body is bent to form a top portion, a bottom portion, and a curved portion connected between the top portion and the bottom portion, and the top portion and the bottom portion are substantially parallel to each other and define a gap therebetween. The stripe-shaped planar structures are connected with each other on an outer surface of the curved portion.04-22-2010
20100053993DISPLAY DEVICE - A display device is provided, which can precisely control a light source by measuring the quantity of light from the light source under uniform conditions. The display device includes a display panel displaying an image, a light source generating light, a light guide plate guiding and providing the light to the display panel, a receptacle accommodating the light source and the light guide plate, an optical sensor fixed to the receptacle to sense the light, a light receiving hole formed at an edge of the receptacle to provide a path through which the light reaches the optical sensor, and an optical adjustment member interposed between the light guide plate and the optical sensor to reduce luminance of the light incident to the optical sensor. The optical sensor is completely exposed to the optical adjustment member through the light receiving hole.03-04-2010
20120268964DIFFUSER FILM WITH CONTROLLED LIGHT COLLIMATION - In one embodiment, a diffuser film with controlled light collimation comprises: a plastic layer having a first side and a second side, the first side having a first textured surface, wherein 20 to 50 percent of slope angles on the first textured surface proximate a first axis have a value of zero to five degrees. In one embodiment, a back lighted device, comprises: a light source, a light guide disposed proximate the light source for receiving light from the light source, and the diffuser film. In one embodiment, a method of controlling collimation in a diffusing film, comprises: determining a desired degree of collimation of the diffusing film; and texturing a plastic layer to form a first textured surface, wherein 20 to 50 percent of slope angles on the first textured surface proximate a first axis have a value of zero to five degrees.10-25-2012
20120268965LIGHT EMITTING DEVICE WITH A POINT-LIKE LIGHT SOURCE - A light emitting device comprises: a light guiding plate including two facing principal surfaces and circumferential end surfaces connecting the principal surfaces; and a point-like light source facing at least one surface of the circumferential end surfaces of the light guiding plate. One surface of the circumferential end surfaces except the surface where the light source is arranged is a light emitting surface, the thickness of the light guiding plate facing the light source is smaller than the thickness of a portion constituting the light emitting surface and is smaller than the thickness of a light emitting surface of the light source, a diffusing unit is formed on at least one of the principal surfaces; and a reflection member covering peripheries of the light source and the light guiding plate except portions constituting the light emitting surfaces of the light source and the light guiding plate is provided.10-25-2012
20110255303ILLUMINATION DEVICE COMPRISING A FILM-BASED LIGHTGUIDE - A light emitting device includes a film lightguide. The lightguide includes a lightguide region and an array of coupling lightguides continuous with the lightguide region, each terminating in a bounding edge and folded such that the bounding edges define a light input surface. A light source emits light into the light input surface. Light propagates within each coupling lightguide to the lightguide region, with light from each coupling lightguide combining with light from one or more other coupling lightguides and totally internally reflecting within the lightguide region. One or more light extraction features frustrate the totally internally reflected light such that light exits the lightguide in a light emitting region.10-20-2011
20100302804Surface light emitting apparatus - A surface emitting apparatus includes a light guide plate, a plurality of point light sources, a diffusing member, and a spacer member. The light guide plate has an end surface and a light emitting surface and is configured to allow light incident on the end surface to be emitted from the light emitting surface. The plurality of point light sources is provided to oppose the end surface of the light guide plate. The diffusing member is provided on a light emitting surface side of the light guide plate. The spacer member defines a space between the light emitting surface and the diffusing member such that a distance between the light emitting surface and the diffusing member is larger than a thickness of the light guide plate.12-02-2010
20120147622DISPLAY DEVICE - A display includes a display panel and a backlight module. The backlight module is configured below the display panel and includes a light guide plate (LGP), a light source, an optical film, and a pad. The light source is located near the LGP. The optical film is configured on the LGP. The pad is located between the optical film and the display panel. A first surface of the pad is fixed to the optical film, and a second surface of the pad is slidable relative to the display panel.06-14-2012
20080253147BACKLIGHT UNIT HAVING IMPROVED CHROMATIC DISPERSION - Provided is a backlight device that includes: a light guide panel having a diffraction pattern for emitting light through an emission surface of the light guide panel by diffracting light entering the light guide panel; and a chromatic dispersion compensation member that is an optical transmitting member located on a light emission side of the light guide panel and has a lattice pattern having a depth in a direction vertical to the emission surface of the light guide panel.10-16-2008
20110164431Suppression of color mixing in UV LED based color pixel backlight for liquid crystal display - A ultra-violet based color pixel backlight system for color filter-less Liquid Crystal Display, comprising multiplicity of LEDs, emitting UV or NUV light in the wavelength range of 150 nm to 390 nm, assembled at one edge of a UV transmitting light guide, which has other three edges and bottom surface coated with UV reflecting layer and its top surface etched with UV and NUV extracting pixel patterns that contain phosphors that emit different colors of light in red, blue and green region when excited by UV or NUV light. The etched pixels contain Aluminum islands underneath the phosphor layers to reflect the visible rays generated by the phosphors of the pixel and suppress the visible light leaving the pixel as well as suppress the visible light from adjacent pixel entering the pixel. Thus suppressing the color mixing that could occur without the incorporation of Al islands. LCD without color pixels, a micro-lens sheet and the light guide with color pixels are placed in substantial alignment to provide a color pixel backlight system for LCD. Thus red, blue and green pixels of light from the light guide passes through the intended red, blue and green pixels of the color filter-less LCD, resulting in color pixel backlighting that enhances the optical efficiency of LCD.07-07-2011
20110019434SIDELIGHT-TYPE BACKLIGHT MODULE - A sidelight-type backlight module includes a casing body, a light-guiding plate, a reflector plate, a light-emitting unit, and a reflector component. The reflector plate is disposed at a surface of the light-guiding plate, and has an extension part extending beyond a side edge of the light-guiding plate that faces toward the light-emitting unit. The reflector component has a light-reflecting face spaced apart from the reflector plate. The light-emitting unit is disposed between the extension part and the light-reflecting face. The extension part and the light-reflecting face reflect light of the light-emitting unit into the light-guiding plate so that a lamp reflector can be omitted. Preferably, the reflector component is formed integrally with the casing body.01-27-2011
20100284202BACKLIGHT UNIT - A backlight unit includes a light guide plate and a plurality of light sources. A side of the light guide plate is provided with an optical microstructure including a plurality of convex lens members aligned along the side. The height-to-pitch ratios of the convex lens members in the central region of the optical microstructure are different from those of the convex lens members in the side regions of the optical microstructure. For example, the height-to-pitch ratios of the convex lens members in the central region of the optical microstructure are larger than the height-to-pitch ratios of the convex lens members in the side regions of the optical microstructure. The light sources may be light emitting diodes (LED) directed toward the optical microstructure.11-11-2010
20110255302LIGHT GUIDE PANEL ASSEMBLIES - A light guide panel assembly (10-20-2011
20100165658Light Guide Plate Having Lateral Optical Structures and Backlight Module Having the Light Guide Plate - The present invention discloses a light guide plate and a backlight module having the same. The light guide plate includes a light emitting surface, a light incident surface, a light reflecting surface, and a plurality of prisms disposed on the light reflecting surface. The disposition direction of the prisms can be parallel or perpendicular to the lengthwise direction of the light reflecting surface. An inclined angle may exist between the disposition direction of the prisms and the lengthwise of the light reflecting surface. The backlight module includes a light guide plate, a light source, and an optical film set, wherein the light source is disposed near the light incident surface. The optical film set partially covers the light emitting surface, wherein a distance exists between a vertex of the prism and an edge of the optical film set.07-01-2010
20100067254LIGHT GUIDE SHEET AND ELECTRONIC EQUIPMENT UTILIZING THE SAME - A light guide sheet of the present invention includes a silicone rubber sheet 03-18-2010
20090180297BACKLIGHT ASSEMBLY - A backlight assembly which can reduce manufacturing costs and enhance display quality of a liquid crystal display (“LCD”). The backlight assembly includes: a light source emitting light; and a light guide plate (“LGP”) including an incident surface on which light emitted from the light source is incident, a top surface which adjoins the incident surface, and a bottom surface which adjoins the incident surface, faces the top surface, and includes a plurality of lower prisms separated from one another and flat portions interposed between the lower prisms, wherein each of the lower prisms includes a first surface and a second surface which are adjacent to each other, the first surface including a plurality of oblique planes having different positive slopes, the second surface having a negative slope, and where the slope forms an angle with a line normal to the incident surface.07-16-2009
20110188263BACKLIGHT ASSEMBLY AND DISPLAY DEVICE HAVING THE SAME - Provided are a backlight assembly and a display device having the same. The backlight assembly includes; a light guide plate (“LGP”) having a light incident portion upon which light is incident and an opposite portion which is disposed substantially opposite to the light incident portion, a lower housing which accommodates the LGP therein, and at least one LGP fixing tape which fixes the LGP into the lower housing, wherein the at least one LGP fixing tape is interposed between the lower housing and lower surfaces of two opposite ends of the light incident portion of the LGP.08-04-2011
20110149595LIGHT GUIDE PLATE, BACKLIGHT MODULE AND METHOD OF GUIDING LIGHT - A light guide plate, backlight module installed with the same and method of guiding light utilizing the same are provided. The light guide plate has a bottom surface, a light outlet surface opposite to the bottom surface, and a light inlet surface at least connected with the light outlet surface. A light is introduced to the light inlet surface and transmitted in the light guide plate. The light guide plate comprises a light transmissive substrate installed with at least one through hole, and a first slot installed on the light transmissive substrate and arranged at the periphery of the through hole.06-23-2011
20100020566Light guild plate structure and backlight module using the same - A light guide plate structure including a main body, a low-refraction index layer, and a collimation lens film is provided. The main body has a side incident surface on a sidewall thereof. The low-refraction index layer is bonded to an upper surface of the main body. A refraction index of the low-refraction index layer is smaller than a refraction index of the main body. The low-refraction index layer has a plurality of through holes therein. The through holes are filled with a material, and the refraction index of the material is close to the refraction index of the main body. The collimation lens film is disposed on an upper surface of the low-refraction index layer and has a plurality of lens structures aligned to the through holes respectively for transforming a light beam entering the collimation lens film via the through holes into a parallel light beam projecting upward.01-28-2010
20100020567LIGHT GUIDE SHEET AND MOVABLE CONTACT ASSEMBLY INCLUDING THE SAME - A light guide sheet includes a material sheet having a film shape, first and second illuminations portion provided on the material sheet for diffusing light. The material sheet has a slit having substantially a strip shape provided therein and provided around the first illumination portion. The slit has a first edge and a second edge opposite to the first edge. The first edge faces the first illumination portion. The material sheet includes a first bridge and a second bridge linking the first edge of the first slit to the second edge across the first slit. This light guide sheet provides a movable contact assembly which is easily fabricated and provides preferable illuminating.01-28-2010
20110216554LIGHT EMITTING DEVICE - An embodiment of the invention provides a light emitting device in which a semiconductor laser diode is used as a light source to efficiently obtain visible light having high uniformity of a luminance distribution. The light emitting device has a semiconductor laser diode that emits a laser beam. And the device has a light guide component that includes an upper surface, a lower surface, two side faces opposite each other, and two end faces opposite each other, the laser beam being incident from a first end face of the light guide component, the light guide component having indentation in the lower surface, the laser beam being reflected by the lower surface and emitted in an upper surface direction. The light emitting device also has a luminous component that is provided on an upper surface side of the light guide component and absorbs the laser beam emitted from the light guide component and emits visible light. And the device has a substance that is in contact with the lower surface and two side faces of the light guide component, a refractive index of the substance being lower than that of the light guide component.09-08-2011
20110051455ILLUMINATION PANEL - An illumination panel includes: a light-collecting section for collecting light emitted from a light source; an optical guide for optically guiding the light collected by the light-collecting section in a direction away from the light source; and a radiation section for radiating the light optically guided by the optical guide; wherein the optical guide has a plurality of grooves for reflecting the light optically guided by the optical guide to the radiation section.03-03-2011
20090080215UV based color pixel backlight for liquid crystal display - A ultra-violet based color pixel backlight system for Liquid Crystal Display, that does not contain the traditional color filters, comprising multiplicity of LEDs, emitting UV light in the wavelength range of 250 nm to 390 nm, assembled at one edge of a UV transmitting light guide, which has other three edges and bottom surface coated with UV reflecting layer and its top surface etched with UV extracting pixel patterns that contain phosphors that emit different colors of light in red, blue and green region when excited by UV light. A sheet of micro-lens is assembled between the light guide and the LCD to have the etched pixels in substantial alignment with the pixels of LCD and the lenses of the sheet of micro-lens. Thus red, blue and green pixels of light from the light guide passes through the intended red, blue and green pixels of LCD that has no traditional color filters, resulting in color pixel backlighting that enhances the optical efficiency of LCD.03-26-2009
20120307521INPUT DEVICE WITH LUMINOUS PATTERNS - The present invention discloses an input device with luminous patterns including an input interface and a backlight module. The backlight module includes a light source and a light guide plate. The input interface has a predetermined light shading rate and at least one pattern formed on the light guide plate. When the light source is turned off, the light passing through the light guide plate is too weak to show the pattern. When the light source is turned on, the luminous pattern is shown. One base plate of the input interface is made from a mixture of transparent plastic particles and light shading particles, and the at least one pattern is formed of the micro light guide structures. The present invention provides the advantages of increasing the light source utilization rate, reducing costs, simplifying the manufacture process, improving the shading uniformity, reducing the thickness of input device and decreasing abrasion.12-06-2012
20120307520INPUT DEVICE WITH LUMINOUS PATTERNS - The present invention discloses an input device with luminous patterns including an input interface and a backlight module. The backlight module includes a light source and a light guide plate. The light guide plate has a predetermined shading rate and at least one pattern formed on the bottom surface of the light guide plate. When the light source is turned off, the light passing through the light guide plate is too weak to show the pattern. When the light source is turned on, the luminous pattern is shown. The light guide plate is made from a mixture of transparent plastic particles and light absorption particles, and the pattern is formed of micro structures of light guide. The present invention provides the advantages of increasing the light source utilization rate, reducing costs, simplifying the manufacture process, improving the shading uniformity, reducing the thickness of input device and decreasing abrasion.12-06-2012
20110002142FLAT SURFACE LIGHT SOURCE DEVICE AND METHOD FOR MANUFACTURING METALLIC MOLD FOR DIVIDING PRISM - A planar light source device capable of increasing light use efficiency and preventing color breakup without using any reflection polarizing plate nor performing multiple reflection. The planar light source device includes a planar light guide plate, light sources arranged as to be opposed to end surfaces of the light guide plate on its both sides, and a divided prism formed in a back surface inside the light guide plate and that reflects light incident upon the light guide plate from the light sources toward a front surface side of the light guide plate. The divided prism includes a prism portion and a dividing portion both of which have a width equal to or less than the wavelength of light from the light sources and is formed with the prism portion and the dividing portion alternately repeated along a direction parallel to the end surfaces of the light guide plate which are opposed to the light sources.01-06-2011
20120039087DISPLAY DEVICE - A display device includes a top housing, a bottom housing engaged with the top housing, and a display module. The top housing and the bottom housing cooperatively define a receiving space for the display module. The display module includes a light source and a light guide plate. The light guide plate includes a light input surface adjacent to the light source, a light output surface, and a bottom surface opposite to the light output surface. The light input surface connects the light output surface to the bottom surface. The inner surface of the bottom housing includes a reflective portion opposite to the bottom surface of the light guide plate, such that the reflective portion reflects the light emitting from the bottom surface to the light output surface.02-16-2012
20120039088DISPLAY DEVICE - A display device includes a housing and a display module received in the housing. The display module includes a light source and a light guide plate. The light guide plate includes a light input surface adjacent to the light source, a light output surface, and a bottom surface opposite to the light output surface. The light input surface connects the light output surface to the bottom surface. The housing includes an inner surface opposite to the bottom surface. A reflective element is formed on the inner surface of the housing to reflect the light emitting from the bottom surface of the light guide plate into the light guide plate.02-16-2012
20110157913LIGHT GUIDE PLATE, DISPLAY APPARATUS HAVING THE SAME, AND METHOD OF MANUFACTURING THE SAME - A light guide plate includes an incident surface receiving incident light from a light source, an exit section that outputs exit light having a light distribution different from a light distribution of the incident light and a reflective section opposite to the exit section. A plurality of first patterns are formed on the exit section while being arranged in a first direction of the exit section to distribute the exit light with maximum brightness in a direction perpendicular to the exit section. A plurality of second patterns are formed on the reflective section to scatter the incident light.06-30-2011
20110157912LIGHT GUIDE PLATE AND RELATED BACKLIGHT MODULE - An array of first micro-structures is formed on a bottom surface of a light guide plate and a number of randomly positioned second micro-structures are formed on an emitting surface of the light guide plate substantially opposite to the bottom surface. The first micro-structure is larger than the second micro-structure. The density of the first micro-structures is smaller than that of the second micro-structures.06-30-2011
20120063164LIGHT SOURCE APPARATUS AND METHOD OF USING LIGHT SOURCE APPARATUS - A light source apparatus includes a light guide plate, at least one light emitting device, and a reflecting unit. The light guide plate has a first surface, a second surface opposite to the first surface, and a light incident surface connecting the first surface and the second surface. The first surface and the second surface connect to form a tip opposite to the light incident surface. An included angle formed between the first surface and the second surface at the tip is greater than 0 degree and less than or equal to 20 degrees. The light emitting device is disposed beside the light incident surface. The reflecting unit is disposed on the second surface. A method of using a light source apparatus is also provided.03-15-2012
20120002438LIGHT GUIDES - This invention relates to light guide devices and methods of manufacture. The light guide device is suitable for use in a range of applications, particularly in connection with the backlighting of displays, for example, liquid crystal displays.01-05-2012
20120002437AREA LIGHT SOURCE DEVICE - An area light source device has a light guide plate including a light incident end face, a light guide plate main body thinner than a thickness of the light incident end face, and a light introducing unit formed in continuation with the light guide plate main body and so that thickness gradually becomes thinner from the light incident end face side towards the light guide plate main body side, a light source arranged at a position facing the light incident end face, a diffuser plate and one or more prism sheets arranged on a surface on a light emission side of the light guide plate main body, and a light shielding sheet arranged on an upper side of the diffuser plate and the prism sheet in a region excluding a light emitting region of the light guide plate main body.01-05-2012
20120008337BACKLIGHT UNIT AND DISPLAY DEVICE THEREWITH - A backlight unit includes a bottom cover, a first heat sink portion disposed on the bottom cover, a second heat sink portion extended upward with respect to the first heat sink portion, and at least a portion of a light emission module placed in at least one recess or at least one hole of the first heat sink portion, and the light emission module disposed on the second heat sink portion.01-12-2012
20120008338LIGHT EMITTER - Provided is a surface light emitter that supplies light using a light guide method, and ensures transparency by lowering a haze value in a thickness direction at the time when a light source is turned off, and enables highly efficient light emission by using plate-surface transversal radiant emitted light at the time when the light source is on. A surface light emitter (01-12-2012
20120014131LIGHT EMITTING DEVICE ASSEMBLY, BACKLIGHT UNIT AND DISPLAY DEVICE HAVING THE SAME - Disclosed herein are a light emitting device assembly, a backlight unit and a display device having the same. The light emitting device assembly includes a light emitting device module having a light emitting device disposed on a board, a light guide plate to emit light incident from the light emitting device module in a direction differing from a light incidence direction, and a first fixing cover and a second fixing cover to connect the light emitting device module and the light guide plate. The first fixing cover and the second fixing cover are coupled by fixing members, protrusions are disposed on the second fixing cover at first regions corresponding to the fixing members, and the edge of the second fixing cover at second regions is bent.01-19-2012
20120014129OPTICAL COMPONENT, BACKLIGHT MODULE AND DISPLAY APPARATUS USING SAME - An optical component is provided in the present disclosure. The optical component, which can be used in a backlight module or a display apparatus, comprises a substrate and optical medium poles embedded in the substrate. A refractive index difference between the substrate and the optical medium poles is greater than 0.4. A backlight module and a display apparatus are also provided.01-19-2012
20120057367BACKLIGHT UNIT - Disclosed herein is a backlight unit including a light guide plate including a light emitting portion to emit light, side surfaces defining corners, and a first light incidence portion and a second light incidence portion to receive light, at least two light emitting modules respectively disposed to face the first light incidence portion and the second light incidence portion, and an optical sheet disposed on the light guide plate, wherein the first light incidence portion is disposed one corner region of the light guide plate, and the second light incidence portion is disposed another corner region of the light guide plate, wherein the first light incidence portion is facing the second light incidence portion or disposed to both sides of one side surface of the light guide plate.03-08-2012
20100246210BACKLIGHT UNIT AND DISPLAY UNIT - A backlight unit (09-30-2010
20100014312Prismatic Film Backlight - A selectively light-reflecting sheet (01-21-2010
20120206939Display Assembly and Methods - A display assembly is disclosed providing a panel display, a light guiding element having a first surface and a second surface and a light source operable to illuminate the light guiding element. The display further includes a layer of reflective material in contact with the first surface of the light guiding element, wherein the first surface receives light from the light source and transmits the light towards the panel display and the second surface of the light guide.08-16-2012
20100214802ILLUMINATION DEVICE AND DISPLAY DEVICE - An illumination device includes a plurality of light source units (08-26-2010
20120155111BACKLIGHT MODULE - A reflective back cover made of plastic material having micro cellular structures is processed by compression molding and cutting so as to have a monolithical structure. The white material of the reflective back cover reflects lights such that the back cover can be an integral component featuring multiple functions of various components. With the thickness control of the reflective back cover, a concave can be formed at the side of the back cover where a light source is contained and the concave further retains the light source and its flexible printed circuit board. With the incorporation of the reflective back cover, the thickness of the backlight module can be reduced and a reliable and repetitive manufacturing of the backlight module can be introduced.06-21-2012
20110044072BACKLIGHT MODULE AND LIGHT GUIDE UNIT - A light guide unit includes a light transmissive base, a plurality of scattering particles, and a plurality of reflective particles. The light transmissive base includes a scattering region and a reflective region. The scattering region has a light emitting surface, a boundary surface, and a light incident surface. The reflective region includes a lamp cover portion and a bottom portion. The lamp cover portion is disposed beside the light incident surface. The bottom portion is disposed at one side of the boundary surface and connected with the scattering region through the boundary surface. The light transmissive base is integrally formed. The scattering particles are doped in the scattering region, and the reflective particles are doped in the reflective region. The number density of the scattering particles in the scattering region is less than that of the reflective particles in the reflective region. A backlight module is also provided.02-24-2011
20120155112PORTABLE COMPUTER ILLUMINATION - Described is an illumination structure suitable for a keyboard light of a portable computer. An example illumination structure includes a transparent acrylic board, a light source, and a light guide. The acrylic board may have a front surface and a rear surface, each of which is flat. The light source is provided at a tilt angle q at which an optical axis is almost at a critical angle with respect to the rear surface of the acrylic board. The light guide is located between the light source and the rear surface. Further, light rays radiated from the light source are refracted by the light guide and the optically-transparent panel, and travel towards the front surface, so as to illuminate the surface.06-21-2012
20120127754LIGHT SOURCE MODULE AND ILLUMINATION APPARATUS - A light source module includes a transparent element, a plurality of light-emitting devices, and a plurality of light diffusion micro-structures. The transparent element includes a transparent substrate having a light exiting surface and a bottom surface opposite to the light exiting surface, a plurality of first notches, and a plurality of second notches. The first notches are sunken at the light exiting surface. There is a reflection surface in each of the first notches. The second notches are respectively opposite to the first notches and sunken at the bottom surface. The second notches respectively have a light incident curve-surface. The light-emitting devices are respectively disposed beside the light incident curve-surfaces. Each of the light-emitting devices has a light exiting surface capable of providing a light beam. The light exiting surface is not conformal to the light incident curve-surface. The light diffusion micro-structures are disposed on the bottom surface.05-24-2012
20110103089LIGHT EMITTING APPARATUS AND DISPLAY APPARATUS HAVING THE SAME - A light emitting apparatus includes an array module including a first light emitting device which emits a light of a second color tinged with a first color, and a second light emitting device which emits a light of a fourth color tinged with a third color complementary to the first color of lights emitted from the first light emitting device.05-05-2011
20100091518Anti-Glare LED Planar Light Source Adapted For Reading Lamp - An anti-glare LED light source adapted for a reading lamp includes a housing having a good thermal conductivity, a light guide plate, at least one LED module, and an optical film stack. The light guide plate, the at least one LED module, and the optical film stack are disposed in the housing. The optical film stack is configured on a first surface of the light guide plate facing toward an opening of the housing. An optical structure adapted for fetching light thereby is configured at a second surface of the light guide plate. The second surface of the light guide plate faces toward an inside bottom of the housing. The inside bottom of the housing is further provided with a light reflective material. The LED module is disposed at a lateral side of the light guide plate, for projecting light into the light guide plate.04-15-2010
20120250350DISPLAY APPARATUS - Provided is a display apparatus. The display apparatus includes a display panel and a backlight unit including a light source disposed at a rear side of the display panel to provide light. The light source includes a sub mount substrate, a light emitting chip mounted on a top surface of the sub mount substrate, a resin layer disposed on the top surface of the sub mount substrate to surround the light emitting chip, and a transmittance adjustment layer disposed on a top surface of the resin layer to adjust a transmitting rate of light emitted from the light emitting chip.10-04-2012
20100290248LIGHTING MODULE, BACKLIGHT UNIT, AND DISPLAY DEVICE INCLUDING THE SAME - Provided are a lighting module, a backlight unit, and a display device including the same. The lighting module may include a substrate, a plurality of light emitting diodes positioned on a first surface of the substrate, and at least one guide protrusion on the first surface of the substrate. The at least one guide protrusion may include a pin protruding from the first surface of the substrate and a cap coupled to the pin.11-18-2010
20100290247LIGHT EMITTING APPARATUS AND DISPLAY APPARATUS HAVING THE SAME - Disclosed are a light emitting apparatus and a display apparatus having the same. The light emitting apparatus comprises a light guide plate comprising a groove in a side surface thereof, and a light emitting diode unit, in which at least a portion of the light emitting device unit is inserted into the groove of the light guide plate.11-18-2010
20100246211PLANAR ILLUMINATION DEVICE - A planar illumination device includes at least one light source, a housing structure, at least one light guide plate, and at least one light exiting surface. The at least one light source is received in the housing structure. The housing structure includes at least one light emitting surface through which the light emitted from the at least one light source exits the at least one housing. The at least one light guide plate includes at least one light incidence surface through which the light enters into the at least one light guide plate, and contacts with the at least one light emitting surface. The light exits the at least one light guide plate through the at least one light exiting surface. The at least one light exiting surface includes a plurality of continuously connected bulge points formed thereon.09-30-2010
20100246209DISPLAY DEVICE - Provided is a display device for an embodiment in which a central axis of a light guide plate (LGP) and a central axis of one or more light sources are matched with each other to maximize efficiency of the light sources, and which has an ultra-slim structure. The display device may include: a display panel which displays an image; an LGP which guides light to the display panel; light sources which are disposed on a side of the LGP and provide light to the LGP; a circuit board which is disposed on a side of the display panel with the light sources mounted on a surface thereof, and driving chips which drive the display panel mounted on an opposite surface thereof; and a frame which houses the LGP and the light sources and on which the circuit board and the display panel are mounted.09-30-2010
20100208492ILLUMINATING APPARATUS AND METHOD FOR MANUFACTURING ILLUMINATING APPARATUS - An illuminating apparatus includes: a light source; and a light guide plate guiding a light of the light source. The light source and the light guide plate are fixed to each other to be receded from a region to which the light is emitted from a light emitting surface of the light source and which is opposite to an emitting surface of the light guide plate.08-19-2010
20120134176BACKLIGHT MODULE AND LIGHT GUIDE PLATE THEREOF - The present invention discloses a backlight module and a light guide plate thereof. The light guide plate has a side incident surface, a light-emitting surface adjacent to the side incident surface, and a micro-structure array adjacent to the side incident surface. The side incident surface receives incident lights from a light source. The micro-structure array has a plurality of elongated prisms, and an end of each of the prisms is oriented to the side incident surface, so that an extension direction of each prism is parallel to or nearly parallel to a normal line of a light-emitting surface of the light source. The light guide plate can increase light transmission distance to provide uniform brightness. The structures of the prisms are maintained in a uniform arrangement, so that a prism mold need not be re-designed to satisfy requirements of panels with different sizes.05-31-2012
20120163020PLANAR LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING SAME - A planar light emitting device provided with a light source; a sheet-like light guide that guides light from the light source in a planar direction, and has a plurality of light emitting regions, and a through slit formed between the light emitting regions to penetrate the light guide in a thickness direction; a switch sheet arranged so as to face one of the front face and the rear face of the light guide; and a light-blocking layer that has a flange portion that covers an opening edge portion of the through slit, a main body portion that covers at least one of the mutually facing inner wall surfaces of the through slit so as to form a space in the interior of the through slit and that continuous with the flange portion, and a bottom portion that is extended from a lower portion of the main body portion.06-28-2012
20120170309Display Apparatus and Method of Assembling the Same - In a display apparatus, a light guide plate includes a chamfered corner portion that defines a light incident surface. A light source unit is arranged adjacent to the light incident surface to provide the light to the light guide plate through the light incident surface. A display panel receives light from the light guide plate to display an image. A receiving container includes sidewalls and a bottom portion to accommodate the light guide plate and the light source unit. At least one sidewall adjacent to the corner portion is divided into a first part and a second part that may be coupled to or separated from each other. Thus, the light guide plate and the light source unit may be easily accommodated in the receiving container, thereby improving an assembling efficiency.07-05-2012
20120212975LIGHT GUIDE UNIT, ILLUMINATION DEVICE AND DISPLAY DEVICE - Provided are an illumination device that does not use a portion for shielding a light source, a light guide unit necessary for the illumination device and a display device incorporating the illumination device. In a light guide bar group (GR), a light emission portion arrangement line (S) formed by connecting the positions of processing portions (08-23-2012
20120075882LIGHT EMITTING DIODE MODULE - An LED module includes an LED and a light-guiding board. The light-guiding board includes a light-incident face facing the LED, a light-emergent face, a light-reflecting face opposite to the light-emergent face, and a light-converting layer containing phosphors therein. Light emitted from the LED sequentially moves the light-incident face, the light-converting layer and the light-emergent face to leave the light-guiding board. The light-converting layer has a uniform thickness.03-29-2012
20120176813LIGHT EMITTING DEVICE COMPRISING A LIGHT GUIDE PLATE WITH REFLECTIVE SHIELDING WITH GLARE REDUCTION - The present invention relates to light emitting devices and more specifically to light emitting devices comprising light guides making use of total internal reflection (TIR). The light emitting device (07-12-2012
20120176812Light Guide Plate and Light-Emitting Assembly Having the Same - A light guide plate includes a light incident surface, a light emitting surface and a light guide surface. The light incident surface receives light from an external light source. The light emitting surface emits outward the light received through the light incident surface. The light guide surface faces the light emitting surface and includes a diffusion pattern formed thereon. The diffusion pattern includes a plurality of porous particles and a plurality of spheroidal particles, and the porous particles have pores formed therein and on surfaces thereof.07-12-2012
20100271840OPTICAL SHEET, SURFACE LIGHT SOURCE AND DISPLAY DEVICE - An optical sheet is structured to have a translucent substrate 10-28-2010
20100296310BACKLIGHT UNIT OF DISPLAY APPARATUS - A backlight unit of a display apparatus is provided. The backlight unit includes a display housing, a light source which is arranged along an inner circumference the display housing, a light guide plate through which light of the light source is transmitted, and which forms surface light, an optical sheet which is disposed on an upper side of the light guide plate to upwardly diffuse the light of the light source transmitted through the light guide plate, a plurality of first fixing units, each of which fix both the light guide plate and the optical sheet, a plurality of second fixing units which support only the light guide plate, and a support frame which is connected to the display housing to fix the optical sheet to the display housing provisionally, and has a window formed on a surface corresponding to the light guide plate to allow light to pass therethrough.11-25-2010
20120257411LIGHT DIFFUSING SHEET AND BACKLIGHT USING SAME - A light diffusing sheet can include a diffusion layer. The diffusion layer has a surface profile that satisfies certain conditions.10-11-2012
20120257410LIGHT DIFFUSING SHEET AND BACKLIGHT USING SAME - A light diffusing sheet can include a diffusion layer. The diffusion layer has a surface profile that satisfies certain conditions.10-11-2012
20120188791SUBSTRATE-GUIDED HOLOGRAPHIC DIFFUSER - A substrate-guided holographic diffuser has a light-guide section configured to in-couple light and transmit the light within itself via total internal reflection. It can also have a brightness enhancement section that recycles non-diffracted light within the light-guide section. A hologram section that receives light from the light-guide section has a holographic structure defining acceptance conditions and is positioned relative to the internally reflected light such that the internally reflected light meets the acceptance conditions of the holographic structure. The internally reflected light is out-coupled by the holographic structure as a projected image of light scattered from a diffuser.07-26-2012
20110122649Method And Structure For Uniforming Light Emitted From Backlight Module - A method and a structure for improving the uniformity light emitted from a backlight module are provided. In accordance with the present invention, a plurality of optical microstructures are intermittently distributed on an LGP of a backlight module. Each of the microstructures further includes a plurality of optical sub-microstructures. The optical microstructures and the optical sub-microstructures are distributed on the LGP with varied distribution intensities in three dimensions, such that at where the optical microstructures and the optical sub-microstructures are distributed with a larger distribution intensities the LGP refracts and reflects more light, and at where the optical microstructures and the optical sub-microstructures are distributed with a smaller distribution intensities the LGP refracts and reflects less light. In such a way, by designing particular distribution intensities of the optical microstructures and the optical sub-microstructures, the light emitted from the LGP can be uniformed.05-26-2011
20100238684BACKLIGHT MODULE - A backlight module includes a plurality of first light sources emitting first light and a light guide plate. The first light sources are arranged in a line and spaced from each other. Two adjacent first light sources define a first space therebetween. The light guide plate includes a first light incident surface and a light output surface. The first light incident surface has a plurality of bright areas respectively corresponding to the first light sources and a plurality of dark areas respectively corresponding to the first spaces. A plurality of first reflectors is disposed on the plurality of dark areas of the first incident surface. The light output surface is adjacent and perpendicular to the light incident surface.09-23-2010
20120320626EDGE-LIT LIGHT FIXTURE INCORPORATING A DOWNLIGHT AND HAVING A UNIFORM EXTERNAL APPEARANCE - A light fixture and method for producing downward-propagating illumination are disclosed. The fixture includes an edge-lit lightguide illuminated from its perimeter. The lightguide has a light extractor, such as a dot pattern on its bottom surface, which extracts a portion of the light from inside the lightguide and directs it to a diffuser. The diffuser randomizes the direction of the extracted light and forms diffuse light. The fixture also includes a downlight, arranged above the lightguide and producing a downlight beam downward. The downlight beam transmits from the top face through the bottom face of the lightguide and emerges from the bottom face of the lightguide as a directional beam. The downlight beam has a downlight beam footprint. The light extractor has a light extractor area that excludes the downlight beam footprint, and the diffuser has a diffuser area that also excludes the downlight beam footprint. The fixture can produce both diffuse light and a directional beam, while maintaining a generally uniform external appearance.12-20-2012
20110235363LIGHT EMITTING DEVICE AND LIGHT UNIT HAVING THE SAME - Disclosed are a light emitting device and a light unit having the same. The light emitting device includes a body; a first light emitting diode for emitting a light having a first main peak in a wavelength range of a first color; a second light emitting diode for emitting a light having a second main peak in the wavelength range of the first color; and a plurality of lead electrodes electrically connected to at least one of the first and second light emitting diodes on the body. The first main peak of the first light emitting diode and the second main peak of the second light emitting diode have a wavelength difference of at least 75% based on the wavelength range of the first color.09-29-2011
20110235362LIGHT CONCENTRATION DEVICE AND RELATED BACKLIGHT MODULE - A light concentration device includes a light concentration plate. The light concentration plate has a first surface and a second surface facing away from the first surface. The light concentration plate defines a number of through holes running through the first surface and the second surface. The light concentration plate has a number of inner surfaces in the respective through holes. Each of the through holes tapers from the second surface to the first surface. The inner surfaces and at least one of the first and second surfaces are reflective surfaces.09-29-2011
20120092889LIGHT DEVICE AND METHOD OF ASSEMBLING A LIGHT DEVICE - Light device (04-19-2012
20120092888EDGE LIGHTING BACK LIGHT MODULE - An edge lighting back light module includes a first light guide plate, at least one second light guide plate, and a plurality of light emitting devices. The first light guide plate has a light incident plane with a first thickness. The second light guide plate has a light incident plane and a light exit plane. The light exit plane of the second light guide plate faces the light incident plane of the first light guide plate, and the light exit plane of the second light guide plate has a second thickness smaller than the first thickness of the light incident plane of the first light guide plate. The light emitting devices face the light incident plane of the second light guide plate.04-19-2012
20120092887BACKLIGHT MODULE AND DISPLAY APPARATUS - The present invention provides a backlight module and a display apparatus. The backlight module comprises a circuit board, a plurality of light sources and a reflective layer. The light sources have lighting surfaces and are electrically connected to the circuit board. The reflective layer flushes with the lighting surfaces of the light sources. Alternatively, the height difference between the reflective layer and the lighting surfaces of the light sources is less than 1 mm for reducing the height difference between the reflective layer and the lighting surfaces of the light sources. The present invention can raise the utilization rate of the reflective light.04-19-2012
20120287670LIGHT SOURCE MODULE AND ELECTRONIC APPARATUS PROVIDED WITH SAME - A light source module of the present invention is configured such that there is a through hole (11-15-2012
20100202157LIGHT GUIDE FILM AND BACKLIGHT UNIT HAVING THE SAME - A backlight unit includes a light source for emitting light; and a light guide film for directing light emitted from the light source toward a liquid crystal display panel. In the backlight unit, the light guide film includes a polycarbonate (PC) film comprising a plasticizer; and at least one of a reflective layer or an optical layer on at least one surface of the PC film.08-12-2010
20080219024Backlight unit with reduced color separation including a polarizing turning film - A backlight unit contains a light source, a light guiding plate, and a turning film having a light entry and a light exit surface comprising first prismatic structures on the exit surface, wherein 09-11-2008
20130135894BACKLIGHT MODULE - A backlight module comprising a light guide plate and a light source is provided. The light guide plate has a light-out surface, which defines a first light-out region and a second light-out region. The light guide plate comprises a V-shaped light guide structure corresponding to the first light-out region. The light source is disposed corresponding to the V-shaped light guide structure and has a light-out surface, which faces a direction parallel to an extension direction of a long axial of V-shaped light guide structure. When the light source emits a light, the V-shaped light guide structure guides the light to illuminate the first light-out region, and the second light-out region may be not influenced by the light of the light source.05-30-2013
20130094243Sheetless Backlight Module, A Light Guide Plate for the Sheetless Backlight and Manufacturing Method Thereof - A sheetless backlight module and a light guide plate thereof are provided. The light guide plate includes a body and a plurality of light scattering units. The body has a bottom and a plurality of microstructures formed on the bottom and recessed in the body from the bottom. The pluralities of light scattering units are disposed in a plurality of spaces formed due to the plurality of microstructures recessed in the body. A manufacturing method of the light guide plate mentioned above includes forming the plurality of microstructures on the bottom of the body; preparing a fluid solution containing at least a diffusive reflective material; distributing the fluid solution on the bottom; driving the fluid solution to flow into the microstructures; removing the part of the fluid solution outside the microstructures; and solidifying the fluid solution to form the plurality of light scattering units.04-18-2013
20130128610PLANE LIGHT SOURCE AND FLEXIBLE PLANE LIGHT SOURCE - A plane light source including a circuit substrate, a plurality of sets of side-view light-emitting devices (LEDs), and a diffusive light-guiding layer is provided. The side-view LEDs are arranged in array over the circuit substrate and are electrically connected with the circuit substrate. The diffusive light-guiding layer covers the side-view LEDs, wherein the diffusive light-guiding layer includes a plurality of diffusive light-guiding units arranged in array and connected to each other. Each of the diffusive light-guiding units is respectively corresponded to illumination coverage of one set of side-view LEDs. Each set of side-view LEDs at least includes two side-view LEDs for emitting light respectively along two different directions and towards into one single diffusive light-guiding units.05-23-2013
20110273904LIGHT SOURCE STRUCTURE - A light source structure includes a light-emitting diode, an optical component, a frame and a mounting substrate. The light-emitting diode emits light. The frame has an inside face defining an inside area and outside face with an attachment opening extending between the inside and outside faces. The light-emitting diode is disposed in the attachment opening to emit the light toward the inside area of the frame. The frame houses the optical component in the inside area of the frame. The mounting substrate has a base member, a copper layer that is laminated on the base member, and a resist film that is laminated on the copper layer. The resist film has a first aperture with the light-emitting diode extending through the first aperture such that the light-emitting diode is electrically coupled to and mounted on the copper layer. The mounting substrate is disposed on the outside face of the frame.11-10-2011
20110273903PLANAR LIGHT-EMITTING DEVICE - A planar light-emitting device includes a light source element and a light guide plate. The light source element is configured to emit light. The light guide plate has a housing hole, a light-emitting face and a light reflecting face. The housing hole houses the light source element. The light reflecting face is formed along a side end portion of the light guide plate. The light reflecting face has an inclined portion that is located next to the housing hole in a first direction of the light guide plate and a flat portion that is located next to the inclined portion in a second direction that is perpendicular to the first direction. The inclined portion has an inclination angle with respect to the flat portion such that the light reflected on the inclined portion is prevented from returning the housing hole.11-10-2011
20110273902BACKLIGHT MODULE - A backlight module includes a light guide plate and at least one light source. The light guide plate has a first light-emitting surface, a second light-emitting surface opposite the first light-emitting surface, and at least one side surface connected between the first light-emitting surface and the second light-emitting surface. The light guide plate has a first substance and a second substance surrounding the first substance, and the second substance is different to the first substance to form at least a first light reflecting/diffusing interface and a second light reflecting/diffusing interface. A light beam emitted by the light source is deflected by the first light reflecting/diffusing interface and output via the first light-emitting surface, and a light beam emitted by the light source is deflected by the second light reflecting/diffusing interface and output via the second light-emitting surface.11-10-2011
20130141937LIGHT-CONTROLLING ELEMENT, DISPLAY DEVICE AND ILLUMINATION DEVICE - A light-controlling element includes an illumination unit capable of controlling an amount of emitted light, and a light guide body on which the light emitted from the illumination unit is incident. The light guide body has a function of propagating the light while totally reflecting the light inside the light guide body, and the light guide body has a function of propagating the light emitted from the illumination unit at a plurality of different propagation angles inside the light guide body. The light guide body includes a plurality of light extraction regions having a function of extracting the light to the outside. At least two of the plurality of light extraction regions have different incidence angle ranges in which the light is capable of being extracted to the outside.06-06-2013
20130141936BACKLIGHT MODULE FOR PROVIDING LIGHT TO A DISPLAY PANEL AND DISPLAY DEVICE THEREWITH - A backlight module includes a light emitting unit for emitting light, a light guide plate disposed on a side of a display panel for guiding the light emitted by the light emitting unit to the display panel, a back cover installed outside the light emitting unit and the light guide plate, and a frame combined with the back cover for accommodating the light emitting unit and the light guide plate with the back cover. The frame includes a first side facing a surface of the light guide plate, and a second side opposite to the first side. The backlight module further includes an optical material layer disposed between the second side of the frame and the display panel for misting and focusing the light refracted from the light guide plate so as to provide uniform and bright light to the display panel.06-06-2013
20100277947Light Source Device and Display Device - A light guide body of a light source device includes a first portion where a low intensity distribution area of one light source and another low intensity distribution area of another light source overlap each other, a second portion positioned closer to the one light source than a boundary line connecting boundaries, each of the boundaries being between the first portion and an overlapping portion where a high intensity distribution area of the one light source overlaps with high intensity distribution areas of the light sources, and a third portion other than the second portion. The prism includes a first prism pattern in which a component reflecting the light in the second portion to a side of the first portion is larger than a component reflecting the light in the second portion to a side of the third portion.11-04-2010
20080198623System and method for displaying images - System and method for projection display with slim cabinet depth. An embodiment comprises a collimating layer positioned in a light path of a display plane, and a diffusion layer positioned in the light path of the display plane after the collimating layer. The diffusion layer increases the viewing angle of the display plane. The collimating layer comprises a first lens having first and second axes orthogonal to each other and to the light path and a second lens positioned in the light path after the first lens, the second lens having first and second axes orthogonal to each other and to the light path. The first lens is configured along its first axis to redirect light towards the light path and the second lens is configured along its first and second axes to redirect light towards the light path so that the light is substantially parallel to the light path.08-21-2008
20080198622Back light module - A back light module includes a frame body, a backboard, a reflecting sheet, a light-guiding plate, a lighting member, an optical film and an upper cover. The frame body and the backboard are formed integral. The frame body has its outer peripheral edge formed with lots of radiating fins, and the back board and the radiating fins are respectively disposed with numerous radiating grains for increasing the heat dissipation area and elevating heat dissipation effect of the back light module, able to effectively lower the working temperature and prolong the service life of the lighting member, and elevate the working efficacy of the lighting member and economize cost.08-21-2008
20080198621Optical Sheet and Surface Light Source Device - A semi-permeable/reflective sheet (08-21-2008
20130148377LIGHT GUIDE FILMS HAVING REDUCED BANDING LEVELS - The present invention provides a light guide plate comprising an input surface for receiving light from a light source, an output surface for emitting light, and a bottom surface opposing to the output surface, wherein at least one of the output surface and the bottom surface has a micro-pattern, the micro-pattern comprising a plurality of micro-lenses. The light guide plate further comprises micro-lens having a width w, a length l, a depth d, an orientation angle, a first base angle α06-13-2013
20130148378LIGHT GUIDE PLATES HAVING A TWO-DIMENSIONAL PATTERN COMPRISING SUBSTANTIALLY IDENTICAL MICRO-LENSES - The present invention provides a light guide plate comprising an input surface for receiving light from a plurality of discrete light sources, an output surface for emitting light, and a bottom surface opposing to the output surface, wherein at least one of the output surface and the bottom surface has a micro-pattern, the micro-pattern consisting of a plurality of substantially identical micro-lenses, each micro-lens having a width, a length, and an orientation angle. The light guide plate further provides an area density D(x, y) of the micro-lenses varies in a first direction y-axis that is parallel to the length direction and in a second direction x-axis that is parallel to the width direction for y between starting line y06-13-2013
20120275185ILLUMINATOR - An illuminator includes a light source unit having an emitting surface for emitting light, and a light distribution control member having a prism surface including a plurality of prisms that have inclined surfaces and are arranged in a plane for two-dimensionally controlling light distribution of light emitted from the light source unit, wherein the prism surface has flat parts. With the light distribution control member, in the light distribution properties of the illumination light of the illuminator, the luminous intensity angular distribution is properly adjusted to have uniform illuminance distributions.11-01-2012
20130114291Surface Light Guide and Luminaire - In at least one embodiment of the surface light guide, the surface light guide includes at least one scattering element for scattering light. A decoupling coefficient is caused by the scattering element. The decoupling coefficient is set in a varying fashion along a main light-guiding direction. In a direction perpendicular to the main sides of the surface light guide, the opacity value is no more than 0.10, the transmission coefficient is at least 0.75 and the quotient of the minimum light density and maximum light density seen over a continuous emitting area of at least one of the main sides is at least 0.75.05-09-2013
20120014130LIGHT FILTERED KEY TOP BEZEL - The present invention provides a light emitting key-top having stealth effect outlook. Particularly, the printing of background colours black, predetermined pattern printing blue and predetermined pattern printing red are all printed on the back side of the key-top. The light-up of coloured print patterns from the same colour light source is to distinguish the current operation mode on the communication devices or personal entertainment devices. Upon introduction of stealth key-top at zero mode or ‘off’ mode, the key-top will be black colour or background colour, when the red colour light source is switched on, only the red colour printed pattern will light-up and/or if blue colour light source is switch on, only the blue colour printed pattern is light up as shown in.01-19-2012
20120020110BACKLIGHT ASYMMETRIC LIGHT INPUT WEDGE - A backlight is disclosed and includes a visible light transmissive body primarily propagating light by TIR with a light input surface and a light output surface and a light guide portion and a light input portion. The light guide portion has a light reflection surface and a light emission surface. The light input portion has opposing side surfaces that are not parallel. One of the opposing surfaces is co-planar with either the light emission surface or the light reflection surface. A light source is disposed adjacent to the light input surface. The light source emits light into the light input portion. A reflective layer is disposed adjacent to or on the opposing side surfaces.01-26-2012
20120020109LIGHTING MODULE AND LIGHTING APPARATUS INCLUDING THE SAME - A lighting module includes: 01-26-2012
20120300495LIGHTING MODULE - A lighting module may be provided that includes a light guide plate including a predetermined pattern; a case covering both sides of the light guide plate; and a light source which is disposed in the case and is configured to emit light to the both sides of the light guide plate. The light guide plate emits the light from the light source through a top surface and a bottom surface.11-29-2012
20130208501LIGHT EMITTING DIODE LIGHTING SYSTEM HAVING HAZE-CHANGEABLE FILM - Disclosed is an LED lighting system comprising a housing equipped with a transparent substrate as an illuminating side, an LED light source located in the housing, and a haze-changeable film attached to the transparent substrate, wherein the transparency of the haze-changeable film changes depending on the application of electric power and the haze-changeable film has a haze on light varying with the intensity of an applied voltage/current. The LED lighting system may be useful for interior emotional lighting because a direct/indirect lighting and a mixed lighting thereof can be provided with a single system and various correlated color temperatures can be produced with a single LED light source.08-15-2013

Patent applications in class Light modifier with emission face combined with light guide plate

Patent applications in all subclasses Light modifier with emission face combined with light guide plate