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Combination of two or more modifiers

Subclass of:

362 - Illumination

362600000 - EDGE LIGHTED PANEL

362606000 - Light modifier with emission face combined with light guide plate

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DocumentTitleDate
20130044513LIGHT GUIDE PLATE WITH MICRO PRISMS, MANUFACTURE METHODE THEREOF AND PLATE SHAPE LAMP AND PLATE-SHAPE LAMP FIXTURE MADE THEREBY - A light guide plate with triangular micro prisms comprises a smooth surface and a prism surface. A plurality of micro prism bodies is arranged on the prism surface. The cross section of each prism body is a triangle. A light source is provided on the outside of the micro prism having the longest distance from the triangle vertex to the smooth surface. The side of the triangle which is far from the light source and receives the light from the light source is called the acceptance side. The angle between the acceptance side and the normal line of the smooth surface is 40 degree to 90 degree. The angles from the micro prism body having the shortest distance between the vertex of triangle and the smooth surface to the micro prism body having the longest distance between the vertex of triangle and the smooth surface are gradually increased. The light guide plate may be symmetrical or asymmetrical, and it may be a rectangular plate or a circular plate. The manufacture method of the light guide plate, a plate-shape lamp and a plate-shape lamp fixture including the light guide plate are also disclosed.02-21-2013
20130044512FLAT PANEL LIGHTING DEVICE AND RETROFIT KIT - The present application is directed to a light fixture and associated retrofit lighting kit that includes a substantially flat light emitting diode panel. The light fixture can be employed in a variety of applications, including installation as a standalone fixture, a replacement for a fluorescent lighting unit and as a retrofit lighting kit to be used in connection with an existing fluorescent lighting unit.02-21-2013
20110194306LIGHT EMITTING DEVICE - The invention relates to a light-emitting device (08-11-2011
20130033896ELECTRONIC DEVICE WITH LIGHT BAR - An electronic device includes a frame, a front panel secured to the frame, two light sources secured to the front panel, and a light bar. The frame includes a first sidewall, a second sidewall, and a top wall connected to the first sidewall and the second sidewall. A first supporting portion is located between the first sidewall and the top wall. A second supporting portion is located between the second sidewall and the top wall. The top wall, the first supporting portion, and the second supporting portion cooperatively define an installation hole. A light bar includes a body including a bridge and a light guiding portion located on the bridge. The bridge is located on the supporting portion and the second supporting portion. The light guiding portion is engaged in the installation hole. Two light sources are aligned with two opposite sides of the light guiding portion.02-07-2013
20080304282BACKLIGHT CONTAINING FORMED BIREFRINGENCE REFLECTIVE POLARIZER - A backlight unit comprises: 12-11-2008
20130027971DAZZLE PREVENTION LIGHTING FIXTURE WITH LIGHT GUIDE MEANS TO DISPERSE EMITTED LIGHT UNIFORMLY - A dazzle prevention lighting fixture includes a holder frame, two light sources bilaterally mounted in the holder frame, and a light guide, which includes a diffuser prism sheet set between the light sources and adapted for diffusing emitted light rays from the light sources into a uniform light source and a back reflection sheet covered on the back side of the diffuser prism sheet and adapted for reflecting the diffused light rays from the diffuser prism sheet toward a predetermined target unit.01-31-2013
20130051067Backlight Module with Connecting Circuits - The present invention relates to a backlight module with connecting circuits, comprising: at least one main circuit lay, a first connecting circuit layer and a second connecting circuit layer, wherein the first connecting circuit layer and the second connecting circuit layer can be connected with the main circuit layer by way of a second time welding process, therefore the total circuit area of the backlight module is increased. Moreover, in the backlight module with connecting circuits, a plurality of first holes are form on a housing, and the first holes sink from the outer surface to the inner surface of the housing bottom, such that each of the LED chips are snugly covered by the inner walls of the first holes when they respectively enter the first holes; Therefore, when the LED chips emit the light, the heat produced by each of the surfaces of the LED chips can be rapidly conducted to the housing via the inner walls of the first holes, and then the heat may be dissipated through the housing.02-28-2013
20100271841LED Lighting With Light Guide Plate Having Side Reflector - A light guide plate having a top surface through which light is emitted, a bottom surface opposite to the top surface and a side surface between the top and bottom surfaces, a bottom reflector on the bottom surface for reflecting light at the bottom surface back into the light guide plate, light emitting diodes at the side surface and a side reflector on the side surface for reflecting light at the side surface back into the light guide plate, wherein the side reflector on the side surface has an opening corresponding to at least one of the light emitting diodes10-28-2010
20130063972Microperforation 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.03-14-2013
20120113679FREE FORM LIGHTING MODULE - The invention provides an illumination device comprising a waveguide having a first face, a second face, and a waveguide edge. The device further comprises a LED light source, wherein the LED light source is arranged to couple at least part of the light source light into the waveguide element. The device also comprises a first transmissive reflector, arranged at the first face side, and a second transmissive reflector, arranged at the second face side. The LED light source, the waveguide, the first transmissive reflector, and the second transmissive reflector, are arranged to generate the first and second light in a direction away from the first face and in a direction away from the second face, respectively. Such an illumination device may allow lighting of a room, for instance via the ceiling with uplight, and lighting of a specific area in the room with downlight.05-10-2012
20120113678 LIGHT GUIDE APPARATUS - The present invention aims to provide a light guide apparatus based on diffraction gratings. The apparatus comprises a light guide plate (05-10-2012
20120113677LIGHT GUIDE PLATE AND BACKLIGHT MODULE - The present invention provides a light guide plate and a backlight module, wherein the light guide plate comprises a bottom surface, a light incident surface and a light-emitting surface. The light-emitting surface and the bottom surface are positioned oppositely. The bottom surface comprises a plurality of screen dots. The screen dots comprise fluorescent powder and are selectively added with diffusion particles. The present invention prevents the phenomenon of color shift and the luminous efficiency degradation due to the fluorescent powder accelerated ageing because of closing to the LED chip.05-10-2012
20120236590LIGHTING ASSEMBLY WITH ADJUSTABLE LIGHT OUTPUT - A lighting assembly includes a light guide having opposed major surfaces between which light propagates by total internal reflection, a light input edge, and two light output regions of different optical characteristics and at least one of which is associated with a corresponding one of the major surfaces. The lighting assembly also includes a light source located adjacent the light input edge. The light source and the light guide variably positionable relative to one another to vary a location on the light input edge at which the light is input to the light guide such that the light is emitted from the light guide selectively apportioned between the light output regions so that a characteristic of the light output from the lighting assembly is modified based on the optical characteristics associated with the light output regions and the relative positioning of the light source and the light guide.09-20-2012
20110044073LIGHT-GUIDE APPARATUS - A light-guide apparatus comprising a light-guide plate for guiding light rays and a plurality of light extraction features is described. The light extraction features comprise a transparent material applied to the light-guide plate so as to form an uneven surface. The transparent material may comprise a textured ink applied to the surface of the light-guide plate via a printing process. The incorporation of an uneven surface provides mirco-lens like elements on the surface of the extraction feature which have a higher aspect ratio and so lend themselves to the refraction of the light out of the light-guide plate. In this way a device is produced wherein the size, height, location and surface profile of the extraction features can be carefully controlled. As a result the described light-guide apparatus provides for a highly efficient and relatively uniform light output.02-24-2011
20110032729ORTHOGONALLY SEPARABLE LIGHT BAR - Embodiments described herein provide optical systems in which phosphors are used to down-convert light. In general, optical systems can include a light guide configured to propagate light from an entrance face to a distal end along a propagation axis using total internal reflection. A phosphor layer can be disposed orthogonal to the entrance surface of the light guide.02-10-2011
20110280044OPTICAL MEMBER, LIGHT SOURCE APPARATUS, DISPLAY APPARATUS, AND TERMINAL APPARATUS - A planar light source, Fresnel lens sheet, and louver are disposed in the stated order in a light source apparatus. The Fresnel lens sheet deflects and focuses in one dimension light that has entered from the planar light source. The louver is disposed in the optical path of the light emitted from the Fresnel lens sheet, and the directivity of the light can be increased by restricting the traveling direction of the light to the focal direction of the Fresnel lens sheet. The light utilization ratio can thereby be increased, the directivity of planarly emitted light can be increased, and the brightness can be made uniform at the point of observation.11-17-2011
20110299297BACKLIGHT MODULE - A backlight module may include an optical substrate, at least one light guide pipe, and at least one first light source. At least one accommodation trench is disposed on the optical substrate for accommodating the light guide pipe. The first light source is disposed at one side of the light guide pipe and is arranged for emitting at least one first light into the light guide pipe. The first light is transferred in the light guide pipe and leaves the light guide pipe when being reflected by the optical substrate.12-08-2011
20110286239LIGHT MODULE - A light module includes a light guide plate, a light bar, and a first reflector. The light guide plate has a first edge surface, a second edge surface, and a top surface serving as a light-outgoing surface. The light bar is disposed on the first edge surface for providing an edge light source into the light guide plate. The light bar has a plurality of light-emitting devices. The first reflector is disposed on the second edge surface to reflect light back to a region above the light bar.11-24-2011
20110286240ILLUMINATING APPARATUS - An illuminating apparatus includes a plurality of light source units and a light guide plate. The light guide plate has a flat part and a protruding part, wherein the light source units provide a side light beam into the light guide plate at an edge surface, the side light beam is guided in the light guide plate and exits at the protruding part.11-24-2011
20110299298BACKLIGHT MODULE - A backlight module including a plurality of light guide plates, a plurality of light emitting devices, and a back frame is provided. The adjacent light guide plates are coupled with each other to form a piece-coupled light guide plate. The light emitting devices provides light to the piece-coupled light guide plate. The back frame has a back sheet and a bending element. The back sheet has at least one broken hole. The bending element is disposed near the broken hole and forms an angle with the back sheet. The bending element has a locking groove, and the piece-coupled light guide plate is leaned against the locking groove. A supporting and fastening device can be adopted to further fasten the piece-coupled light guide plate and films below the piece-coupled light guide plate. Additionally, a reflector is disposed below the piece-coupled light guide plate for reflecting the light upwards.12-08-2011
20110292680LIGHT GUIDE UNIT AND LIGHT SOURCE MODULE - A light guide unit having a planar portion, a first curved portion, and a second curved portion are disclosed. The first curved portion has a first optical surface, a second optical surface, and a light incident surface connecting the first and the second optical surfaces. The planar portion has a first and a second surfaces, respectively, connected to the first and the second optical surfaces. Absolute values of slopes of the first and second optical surfaces with respect to the first and second surfaces gradually increase near to the light incident surface, respectively. The planar portion connects the first and the second curved portions having a third surface and a third optical surface, and the second surface connects the second and the third optical surfaces. An absolute value of a slope of the third optical surface with respect to the second surface gradually increases away from the first surface.12-01-2011
20110292679BACKLIGHT UNIT AND DISPLAY DEVICE HAVING THE SAME - A backlight unit is disclosed. The backlight unit includes a light emitting device module, a reflective plate including at least two slopes configured to reflect light emitted from the light emitting device module to an optical member, and the optical member to transmit the light directed from the light emitting device module and the reflective plate. The slope located farther from the light emitting device module has a greater gradient with respect to a horizontal plane than the slope located closer to the light emitting device module.12-01-2011
20100135039BACKLIGHT MODULE AND METHOD FOR MANUFACTURING SAME - A backlight module includes a light guide plate having a light input surface, a light source adjacent to the light input surface of the light guide plate, and a frame unit receiving the light guide plate and the light source. The frame unit includes a back plate and a light reflective layer. The back plate defines a plurality of openings, and the light reflective layer covers the back plate and fills the openings. A method for manufacturing the backlight module is also provided.06-03-2010
20100033987Backlight Module and Light Emitting Diode Module Thereof - A light emitting diode contains a package structure and a light emitting diode die embedded in the package structure. The package structure has an elliptic bottom surface having a semi-major axes and a semi-minor axis and a semi-ellipsoidal surface connecting and surrounding the edge of the elliptic bottom surface, wherein the maximum height of the ellipsoidal surface from the elliptic bottom surface is between the semi-major axes and the semi-minor axis.02-11-2010
20090147532Backlight unit - A backlight unit includes: light guide plate surrounded by main surfaces and end surfaces, one end surface facing a light source designated as entrance surface, one main surface designated as emitting surface; first prism sheet provided above the light guide plate, having first prism columns on a top surface and second prism columns on a bottom surface, each first prism column has first ridge line parallel or perpendicular to the entrance surface, each second prism column has second ridge line extending in a different direction from the first ridge line; second prism sheet provided above the first prism sheet, having third prism columns abutting each other on a top surface, each third prism column has third ridge line extending in a direction different from the first and second ridge lines; and reflection sheet facing the light guide plate below the light guide plate.06-11-2009
20100118563LIGHT GUIDE PLATE AND DISPLAY APPARATUS - A light guide plate and a display apparatus are disclosed. The light guide plate comprises a first portion and a second portion. The first portion includes a light output surface. The second portion is formed on one end of the first portion to guide light into the first portion, wherein the second portion includes a light input surface adjacent to at least one light source, a first reflection surface and a second reflection surface adjacent to the first reflection surface, and the light input surface and the light output surface are substantially in the form of an L-shape. The light guide plate is applicable to the display apparatus.05-13-2010
20110149597LIGHT SOURCE MODULE - A light source module includes a casing, at least one reflective layer, a light bar, and at least one light source. The casing has a first side wall and a second side wall, and the first side wall and the second side wall define an opening. The opening faces a light incident surface of a light guide plate, and the first side wall and the second side wall are respectively positioned on two opposite sides of the opening. The reflective layer is formed inside the casing and adjacent to one of the first side wall and the second side wall. The light bar is disposed inside the casing and forms an angle with the light incident surface of the light guide plate.06-23-2011
20110149596LED LAMP HAVING LIGHT GUIDE - An LED lamp includes a frame, a bracket connected to the frame, two LED modules and driving modules received between the frame and the bracket, and a backplate, a reflective plate, a light guide, a diffusion plate and a cover sequentially sandwiched between the frame and the bracket. The LED modules are oriented towards two opposite lateral sides of the light guide. The light guide has a large amount of scattering dots formed on a back face thereof. The scattering dots are arranged in multiple columns. The sizes of the dots in each column are identical to each other, and the sizes of the dots in different columns gradually increase from two opposite sides towards a middle of the light guide.06-23-2011
20090273946Illumination module, and a display and general lighting apparatus using the same - The present invention provides an illumination module, and a display and a general lighting apparatus using the same. Said illumination module includes a plurality of light guiding strips arranged in juxtaposition with a predefined distance; a plurality of light sources, disposed on at least one end of said light guiding strips respectively for providing the light into said light guiding strips; and a plurality of light reflecting units, disposed between said light guiding strips for reflecting the light from said light guiding strips. The light reflecting units according to the present invention can guide the light from the sides of light guiding strips or other light not toward the right side of the illumination module back to the right side of the illumination module, and thus improving the light output efficiency and uniformity.11-05-2009
20120106195Backlight Module - This embodiment relates to a backlight module, comprising a first light guide plate and a second light guide plate, wherein a first lower structure layer and a second lower structure layer are disposed on the first light guide plate and the second light guide plate, respectively. The first lower structure layer includes a first primary strip and a first secondary strip, wherein the first primary strip is located between the first secondary strip and one side of the first light guide plate. The second lower structure layer includes a second primary strip and a second secondary strip, wherein the second primary strip is located between the second secondary strip and one side of the second light guide plate. The second primary strip is exposed outside the projection of the first lower structure layer on the second lower structure layer and the first lower structure layer at least partially overlaps the second secondary strip.05-03-2012
20100277949Light guide plate and backlight module - A light guide plate adapted to guide a beam emitted from at least one light emitting device and including a light transmissive substrate and a plurality of optical structures is provided. The light transmissive substrate has a light emitting surface, a bottom surface opposite to the light emitting surface, and a light incident surface connecting the light emitting surface and the bottom surface. The beam from the light emitting device enters the light transmissive substrate through the light incident surface and is emitted out. The optical structures are disposed on the bottom surface and each of the optical structures has a first total internal reflection (TIR) surface and a second TIR surface. A part of the beam from the light incident surface is totally internally reflected by the first TIR surface and the second TIR surface in sequence. A backlight module using the light guide plate is also provided.11-04-2010
20100172150LIGHT GUIDE PLATE AND DISPLAY DEVICE USING THE SAME - To solve an uneven light quantity caused in a case where a light guide plate, in which light from a spot light source such as an LED enters an surface, changes by 90 degrees and exits the light to the outside, is used as a backlight. The light guide plate of the invention includes a light flux unifying region. The light flux unifying region has an incident surface, a first surface, and an exit surface. Light fluxes emitted from a light source enter the incident surface. The first surface is almost perpendicular to the incident surface and the intensity distribution of the light fluxes having entered is unified at the first surface. The exit surface is disposed almost parallel with the incident surface and the unified light fluxes exit from the exit surface. A boundary line between the incident surface and the first surface has a zigzag surface.07-08-2010
20110199784ILLUMINATING DEVICE AND DISPLAY DEVICE - A resin frame (08-18-2011
20080304283TRANSREFLECTORS, TRANSREFLECTOR SYSTEMS AND DISPLAYS AND METHODS OF MAKING TRANSREFLECTORS - The transreflectors may comprise a transparent substrate having reflective surfaces and other light transmissive surfaces for respectively reflecting and transmitting a greater portion of the light striking opposite sides of the substrate. Alternatively, the transreflectors may comprise two or more transparent substrates of different indices of refraction bonded together, with a pattern of optical deformities in the mating side of one of the substrates and an inverse pattern of optical deformities in the mating side of an other substrate in mating engagement with each other. The transreflectors are used in a transreflector system or display to transmit more of the light emitted by a backlight or other light source incident on one side of the transreflectors and reflect more of the light incident on the opposite side of the transreflectors. The transreflectors and backlight may be tuned to each other to enable the transreflectors to better transmit more of the light emitted by the backlight.12-11-2008
20110007520BACKLIGHT - The light from a light source (01-13-2011
20080266898OPTICAL 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 encircling protrusions, a plurality of elongated V-shaped protrusions and a lamp-receiving portion. The second surface is opposite to the first surface. The encircling protrusions are formed at the first surface. The elongated V-shaped protrusions are formed at the second surface. The lamp-receiving portion is defined in one of the first surface and the second surface. A backlight module using the optical plate is also provided.10-30-2008
20110205756LIGHT GUIDES AND BACKLIGHT SYSTEMS INCORPORATING PRISMATIC STRUCTURES AND LIGHT REDIRECTORS - Apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors. The prismatic optical structures may include a plurality of rear-facing prisms and/or front-facing prisms, each with an associated prism apex angle. The prism apex angle for each of the prisms may be selected such that on-axis brightness intensity and/or total optical power extraction of the display are improved.08-25-2011
20090021958OPTICAL PLATE AND BACKLIGHT MODULE USING THE SAME - An exemplary optical plate includes a plurality of transparent plate units. The transparent plate unit includes a first surface, a second surface, a plurality of conical frustum protrusions, a diffusion layer and a lamp-receiving portion. The second surface is opposite to the first surface. The conical frustum protrusions are formed at the first surface. Each conical frustum protrusion comprises two conical frustums. The diffusion layer is formed at the second surface. The lamp-receiving portion is defined in one of the first surface and the second surface. A backlight module using the optical plate is also provided.01-22-2009
20130121022OPTICAL SHEET HAVING IMPROVED DURABILITY, AND BACKLIGHT UNIT COMPRISING SAME - A durability-enhanced optical sheet and an edge-type backlight unit having the optical sheet. The edge-type backlight unit includes a light source unit that includes a plurality of light sources, a light guide unit that is disposed adjacently to the light source unit and controls a path of light generated from the light source unit, a diffusion sheet disposed on the light guide plate, and an optical sheet that is disposed on the diffusion sheet and includes a lens unit and a non-lens unit, wherein the non-lens unit includes a first base unit, a second base unit, and a bonding layer for bonding the first and second base units. The optical sheet includes two base unit layers, and thus, sheet waves that can be caused due to heat can be prevented, modulus can be increased, and durability of the optical sheet can be enhanced.05-16-2013
20130121023BACKLIGHT UNIT AND DISPLAY APPARATUS THEREOF - A backlight unit and a display device having the same are provided. The backlight unit includes a light source, a reflector arranged on and under the light source to totally reflect at least a part of light emitted from the light source in a lateral direction, a reflective sheet arranged under the reflector, and a diffusion sheet arranged on the reflector.05-16-2013
20130215644SPREAD ILLUMINATING APPARATUS - A spread illuminating apparatus includes: a light guide plate with an emitting surface, a plurality of optical sheets laminated on the emitting surface, a light-blocking member that defines an effective area of the emitting surface, a light source, and a frame for accommodating the above constituents. The plurality of optical sheets are formed such that a position of an edge of each optical sheet on the incident light surface side of the light guide plate is spaced farther apart from the incident light surface of the light guide plate as moving toward a top layer of the optical sheets counted from the emitting surface, and the light-blocking member is fixed to each optical sheet and extends from the incident light surface side of the light guide plate so as to cover a vicinity of the edges of the plurality of optical sheets.08-22-2013
20110228558PLANAR LIGHT SOURCE DEVICE - Conventional planar light source devices have a problem that increasing a utilization ratio of light results in a very narrow angle distribution of light. A planar light source device of the present invention has a light source (09-22-2011
20090251921System for improvement of the perceived FOS homogeneity by suppressing hotspots in a module design with a short LED to active area distance - The present invention discloses a system for displaying images, comprising: a light source; a panel including an active area and a peripheral area; a light guide being located at one side of the light source and under the panel, the light guide having a first side facing the panel and a second side opposite to the first side; and a plurality of optical foils, each foil disposed on the first or second side of the light guide, wherein at least one of the optical foil has a hotspot-reducing area in the peripheral area in order to reduce or eliminate a hotspot in front of the light source, wherein the hotspot-reducing area is a cut-out area, a covered area, or combinations thereof.10-08-2009
20080259639OPTICAL PLATE AND BACKLIGHT MODULE USING THE SAME - An exemplary optical plate includes at least one transparent plate section. The transparent plate section 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 on the light output 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
20100259949BACKLIGHT MODULE - A backlight module includes a frame, a reflective sheet, a light guide plate, a light source, and an optical film set. The frame defines an accommodation space, and the reflective sheet is disposed in the accommodation space. The light guide plate is disposed in the accommodation space and on one surface of the reflective sheet. The optical film set is disposed one side of the light guide plate opposite the reflective sheet. The reflective sheet is hollowed out at a position overlapping the light source to form at least one opening so as to reduce light halos.10-14-2010
20110058389BRIGHTNESS ENHANCEMENT FILM AND BACKLIGHT MODULE - A brightness enhancement film (BEF) includes a light transmissive substrate, a plurality of optical structures, a reflective layer, and a prism layer. The light transmissive substrate has a first surface and a second surface opposite to the first surface. The optical structures are disposed on the first surface. The reflective layer is disposed on the second surface and has a plurality of light transmissive openings. The prism layer covers the reflective layer and the second surface and includes a plurality of prism structures protruded away from the second surface. A backlight module is also provided.03-10-2011
20100124076Illumination device and display device - Provided is a display device including a microprism array backlight using a point light source, in which at least two pyramidal microprisms are arranged on an opposing surface opposite to an exit surface of a light guide plate, in areas overlapping openings of display element. An incident surface of the light guide plate includes an entrance portion, which is a semicircular depressed portion. An arrangement angle of the microprisms is optimized so that light from the entrance portion may be output with high efficiency. With this structure, the display device may use two or more point light sources, to thereby prevent moire in a liquid crystal panel.05-20-2010
20130128611LIGHT BEAM EXPANDING DEVICE, IMAGE DISPLAY DEVICE, AND OPTICAL DEVICE - An image display device includes an image generating device, a light guide unit, and a light beam expanding device. The light guide unit includes a light guide plate, a first deflector, and a second deflector. The light beam expanding device expands a light beam incident from the image generating device along the Z direction and outputs the light beam to the light guide unit when the incident direction of light incident on the light guide plate is defined as the X direction and the propagation direction of light in the light guide plate is defined as the Y direction. The light beam expanding device is composed of a first reflective mirror on which light from the image generating device is incident and a second reflective mirror on which light from the first reflective mirror is incident and that outputs light to the light guide unit.05-23-2013
20100309682Brightness enhancement film and backlight module - A brightness enhancement film (BEF) includes a light transmissive substrate having a first surface and a second surface, a plurality of lenses disposed on the first surface, and a reflective layer. Each of the lenses has a curved protruding surface facing away from the light transmissive substrate. The radius of curvature of the curved protruding surface in a first direction parallel to the first surface is R12-09-2010
20100321952LIGHT EMITTING DEVICES AND APPLICATIONS THEREOF - In one aspect, the present invention provides light emitting devices, including light fixtures and luminaires. In some embodiments, a light emitting device comprises at least one light source, a lightguide operable to receive light from the at least one light source at a first location on the lightguide, at least one light extraction region optically coupled to the lightguide and a substantially non-scattering region along a portion of the lightguide.12-23-2010
20100321953LIGHT EMITTING DEVICES AND APPLICATIONS THEREOF - In one aspect, the present invention provides light emitting devices, including light fixtures and luminaires. In some embodiments, a light emitting device comprises at least one light source, a lightguide operable to receive light from the at least one light source at a first location on the lightguide, at least one light extraction region optically coupled to the lightguide and a substantially non-scattering region along a portion of the lightguide.12-23-2010
20110026269LIGHT UNIT AND DISPLAY APPARATUS HAVING THE SAME - Disclosed is a light unit. The light unit includes: a light guide plate having a plurality of grooves formed on one side thereof; a light guide extension formed at one side of the groove; and at least one light emitting diode allowing light to be incident on the light guide plate through the light guide extension.02-03-2011
20110026270SURFACE LIGHT SOURCE DEVICE - A surface light source device from which large planar light with a uniform light intensity distribution can be obtained from spot-like laser light. The surface light source device (02-03-2011
20110242844LIGHT GUIDES AND BACKLIGHT SYSTEMS INCORPORATING LIGHT REDIRECTORS AT VARYING DENSITIES - Light guides and backlight systems are disclosed that include one or more groups of geometric light redirectors whose density and/or orientation across the surface of a light guide varies to improve light emission uniformity and to reduce visual artifacts.10-06-2011
20110242843ILLUMINATION APPARATUS AND LIGHT GUIDE PLATE - An illumination apparatus includes a light guide plate and at least one light emitting element. The light guide plate includes a light transmissive substrate, a plurality of first diffusion net points, and a plurality of second diffusion net points. The light transmissive substrate 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 diffusion net points and the second diffusion net points are disposed on the second surface. A portion of the first diffusion net points at least partially overlaps the second diffusion net points. The size of the first diffusion net points is smaller than the size of the second diffusion net points. The light emitting element is disposed beside the light incident surface and capable of emitting a light beam. A light guide plate is also provided.10-06-2011
20110085351ILLUMINATION SYSTEM, BACKLIGHTING SYSTEM AND DISPLAY DEVICE - The invention relates to an illumination system (04-14-2011
20110176329LIGHT SOURCE APPARATUS - A light source apparatus including a light guide plate, a first light emitting unit, and a second light emitting unit is provided. The light guide plate has a first surface, an opposite second surface, a first side surface, and an opposite second side surface. The first light emitting unit is disposed beside the first side surface for providing a first light beam. The second light emitting unit is disposed beside the second side surface for providing a second light beam. The first light emitting unit has a central line passing through a geometric center of the first light emitting unit and being perpendicular to the first side surface. The second light emitting unit has a central line passing through a geometric center of the second light emitting unit and being perpendicular to the second side surface. The central lines do not coincide with each other.07-21-2011
20110069509BACKLIGHT MODULE - A backlight module includes a back plate, a plurality of position limiting elements, a light guiding plate, and a light source. The position limiting elements are disposed on the back plate, and each of the position limiting elements includes a pillar and a cushion sheath covering the pillar. The light guiding plate is disposed on the back plate, and has a plurality of first position limiting portions. The first position limiting portions respectively contact the position limiting elements to position the light guiding plate on the back plate. The light source is disposed at a side of the light guiding plate.03-24-2011
20100246212Backlight and displaying/imaging apparatus - The present invention provides a backlight capable of suppressing loss of light from an invisible light source and a displaying/imaging apparatus using the same. The backlight includes: a light guide plate having a light emitting face and a rear face opposed to the light emitting face; a visible light source disposed on a side face of the light guide plate; an invisible light source disposed on a side face of the light guide plate; a first reflection film disposed on the rear face side of the light guide plate, reflecting light from the visible light source, and transmitting light from the invisible light source; and a second reflection film disposed on the rear face side of the light guide plate and reflecting light from at least the invisible light source out of the visible light source and the invisible light source.09-30-2010
20110255304SURFACE LIGHT SOURCE ELEMENT AND IMAGE DISPLAY INCLUDING THE SAME - The present invention is objected to improve brightness in a front direction in a surface light source element including a light-guiding plate having a primary light source at least one side surface, a reflector and a prism sheet. In the surface light source element using the light-guiding plate (10-20-2011
20110164432BACKLIGHT UNIT - Problems to be Solved07-07-2011
20110261586LIGHT GUIDE SYSTEM, AND REFLECTOR FOR CONTROLLING OUT-COUPLING OF LIGHT - A light guide system (10-27-2011
20110096567LIGHT GUIDE PLATE AND BACKLIGHT MODULE - A light guide plate is adapted for a backlight module having at least one light emitting device, and the light guide plate includes a light emitting surface, a surface opposite to the light emitting surface, a light incident surface connected with the light emitting surface and the surface, and a plurality of microstructures disposed on the light emitting surface or the surface. 90 percent or more of the surface or the light emitting surface is flat. At least one of the light emitting devices is disposed beside the light incident surface and capable of emitting a light beam. The light incident surface is capable of making the light beam enter the light guide plate and the light emitting surface is capable of making the light beam transmit outside the light guide plate. A backlight module is also provided.04-28-2011
20110096566BACKLIGHT MODULE - A backlight module includes a light guide plate, micro-structures, at least one light source, and a first prism sheet. The light guide plate includes a first surface, a second surface, and a light incident surface connecting the first surface and the second surface. The micro-structures are disposed on at least one of the first surface and the second surface. The light source is disposed beside the light incident surface and capable of emitting a light beam. The first prism sheet includes a first transparent substrate and first prism structures. The first surface is located between the second surface and the first transparent substrate. The first transparent substrate is disposed among the first surface and the first prism structures. Each first prism structure has a first vertex angle protruding away from the first transparent substrate, and the first vertex angle falls within a range of 67 degrees to 83 degrees.04-28-2011
20110096565LIGHT SOURCE APPARATUS - A light source apparatus includes a light guide plate, light scattering micro-structures, at least a light-emitting module, and a front cover. The light guide plate has a first surface, a second surface opposite thereto, at least a light incident surface connecting the first and the second surfaces, a scattering area, and a reflecting area surrounding the scattering area. The light scattering micro-structures are disposed on at least one of the first and the second surfaces and within the scattering area. The light-emitting module is disposed beside the light incident surface and capable of emitting a light beam entering the light guide plate through the light incident surface. The front cover covers the reflecting area and has a light emerging area opposite to the scattering area. The light emerging area capable of being passed through by the light beam has a shape similar to a shape of the scattering area.04-28-2011
20100067255OPTICAL SHEET AND BACKLIGHT UNIT USING THE SAME - An optical sheet and a backlight unit using the same are disclosed, in which deviation of a viewing angle is minimized to improve picture quality. The optical sheet includes a diffusion sheet provided with a plurality of diffusion patterns diffusing incident light in at least two directions to allow the incident light to have different strengths.03-18-2010
20100195349Light Source of Varying Thickness - An apparatus and method for a light source are disclosed. The apparatus comprises a light guide including light extracting features and at least one light source placed near an end of the light guide. Light from the light source gets deflected by the light extracting features and emanates in a predetermined pattern along a surface of the light guide. The light guide has different thicknesses in different parts.08-05-2010
20110261585PLANAR LIGHT SOURCE DEVICE AND DISPLAY APPARATUS USING THE SAME - A planar light source device comprising: a plurality of point light; a light guide plate including an incident surface, wherein the light spread out into a planar shape and the light guide plate emits the light from an emitting surface; and a frame including an opening, wherein the frame has a protrusion that is provided on a light source side of a peripheral end portion of the emitting surface of the light guide plate, wherein the point light sources are arranged at the light source side, wherein the protrusion has difference widths parallel to the emitting surface, and wherein a width of a portion of the protrusion, which corresponds to the position where the point of the point light source is arranged, is wider than a width of a portion of the protrusion, which corresponds to a position between the point light sources.10-27-2011
20110261584SYSTEMS AND METHODS FOR CONTROLLING BACKLIGHT OUTPUT CHARACTERISTICS - A backlight includes a light source and one or more light recycling films. The light source generates light that exits the light source with an angular exit distribution. The light recycling films are oriented in relation to the light source so that the prism peaks of the recycling films are oriented away from the light source. The recycling films have a range of optimal incident angles that allow light to pass through the recycling films without recycling. The components of the light source, the characteristics of the recycling films, or both, are configured to control the overlap between the exit distribution of the light source and the optimal incident angle range of the recycling films.10-27-2011
20110188264LIGHT SOURCE ASSEMBLY AND RELATED LENS TESTING DEVICE - A lens testing device includes a light source assembly, a pattern plate, and an imaging sensor. The light source assembly includes a transparent base plate, a light guide plate, and a number of illuminants. The light source assembly uses the light guide plate to uniformize a light come from the illuminants and emit the light onto the pattern plate. The imaging sensor is placed beneath the transparent base plate to sense the light passing through the pattern plate and focused by a lens.08-04-2011
20110051456LIGHTING DEVICE EMPLOYING A LIGHT GUIDE PLATE AND A PLURALITY OFLIGHT EMITTING DIODES - The present invention relates to a lighting device (03-03-2011
20110051457CEILING MOUNT LED LAMP - A ceiling mount LED lamp is provided. The ceiling mount LED lamp includes a securing unit, and a lighting unit. The securing unit includes a frame body, a back plate, a top plate, and a plurality of holding strips. The back plate is positioned at an opposite side of the frame body. The top plate is positioned on the back plate. The holding strips are provided at periphery inner sides of the securing unit. The holding strips have a U-shaped cross-section. The lighting unit is positioned between the frame body and the back plate of the securing unit. The lighting unit includes a reflective sheet, at least one circuit board, a plurality of LED units, a light guide plate, and a diffusion sheet. The ceiling mount LED lamp has a simple structure and can be conveniently assembled and disassembled. Further, it is cheap and suitable for mass production.03-03-2011
20130170247BACKLIGHT MODULE - A backlight module includes at least one light source and a light guide plate. The light guide plate includes at least one light incident surface, a light-emitting surface, a bottom surface, a plurality of lenticular lenses and a plurality of micro dots. The light incident surface is disposed adjacent to the light source, and the light-emitting surface is connected with the light incident surface and forms an angle with the light incident surface. The bottom surface is connected with the light incident surface and disposed opposite the light-emitting surface. The lenticular lenses are arranged on the light-emitting surface in a direction substantially parallel to the light incident surface, and the micro dots are formed on at least the bottom surface. The invention provides a backlight module having high directionality of light propagation and high light-utilization efficiency.07-04-2013
20120039089OPTICAL CONSTRUCTION AND DISPLAY SYSTEM INCORPORATING SAME - Optical constructions are disclosed. A disclosed optical construction includes a reflective polarizer layer, and an optical film that is disposed on the reflective polarizer layer. The optical film has an optical haze that is not less than about 50%. Substantial portions of each two neighboring major surfaces in the optical construction are in physical contact with each other. The optical construction has an axial luminance gain that is not less than about 1.2.02-16-2012
20110317447BACKLIGHT MODULE - A backlight module includes a housing, a light source, a light guide plate, a diffuser plate and a prism plate, and the light source, the light guide plate, the diffuser plate and the prism plate are received within the housing. The housing includes reflective coating located on an inner surface of the housing. The light source provides light beams; the light guide plate converts the light beams into corresponding surface light source. The diffuser plate is mounted on the light guide plate and unifies the light beams from the light guide plate. The prism plate is mounted on the diffuser plate and increases the illumination of the light beams. Thus, parts of the light beams are reflected by the reflective coating back to the light guide plate, and the reflected light beams pass through the diffuser plate and the prism plate.12-29-2011
20120002439BACKLIGHT MODULE - A backlight module includes a light source, a light guide plate, a diffuser plate, a first prism plate, and a second prism plate consecutively mounted together, bottom to top. The light source emits and provides light beams and is adjacent to the light guide plate. The light guide plate receives and converts the light beams into surface light, and includes a reflective layer. The diffuser plate is adjacent to the reflective layer and unifies the light beams. The first prism plate and the second prism plate can increase the brightness of the light beams. Parts of the light beams are reflected back to the light guide plate by the reflective layer, and the light beams from the light source and the light guide plate pass through the diffuser plate, the first prism plate and the second prism plate to provide needful light beams.01-05-2012
20120014132OPTICAL COMPONENT, BACKLIGHT MODULE AND DISPLAY APPARATUS USING SAME - An optical component adapted for using in a backlight module providing light sources to a display apparatus is provided in the present disclosure. The optical component includes a first optical layer comprising a plurality of first blind holes extending downward from an upper surface to a first predetermined depth of the optical component, and a second optical layer comprising a plurality of second blind holes extending upward from a lower surface to a second predetermined depth of the optical component. A backlight module and a display apparatus are also provided.01-19-2012
20120014133LIGHT SOURCE MODULE AND ELECTRONIC DEVICE INCLUDING THE SAME - According to a light source module of the present invention, a plurality of light guides (01-19-2012
20120063165LIGHT GUIDE DEVICE AND BACKLIGHT MODULE - A light guide device and a backlight module containing the light guide device thereon are provided. The light guide device comprises a main body and pluralities of microstructures. The main body has refractive index n. A thickness T is defined between the base face and the emitting face of light guide device. Each microstructure comprises a first foundation, a second foundation, an apex, a first reflective face, a second reflective face and a plane face. The microstructure has width P. The first reflective face connects the first foundation and the apex, wherein a first distance L03-15-2012
20120155113ILLUMINATION 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.06-21-2012
20120155114LIGHTING MODULE - A lighting module may be provided that includes a light guide plate; a first case coupled to one side of the light guide plate; a first light source which is disposed in the first case and emits light to the one side of the light guide plate; a second case coupled to the other side of the light guide plate; and a second light source which is disposed in the second case and emits light to the other side of the light guide plate. An amount of light which is emitted through a top surface of the light guide plate is equal to or not equal to an amount of light which is emitted through a bottom surface of the light guide plate.06-21-2012
20110103090LIGHT EMITTING MODULE - A light emitting module comprising a light-guide plate, a light source, and a light modulating film is provided. The light-guide plate has a light emitting surface and a light receiving surface. The light source is located at a side corresponding to the light receiving surface. The light modulating film is disposed on the light emitting surface. The light modulating film has a plurality of protruding bars located at a side away from the light emitting surface wherein each protruding bar has a vertex angle from 120° to 178°.05-05-2011
20120120678BACKLIGHT MODULE - A backlight module includes a light guide plate, a plurality of light emitting devices, and a composite optical film. The light guide plate has a light incident surface, a light exit surface, and a bottom surface, wherein the light exit surface is opposite to the bottom surface, and the light incident surface is connected with the light exit surface and the bottom surface. The light emitting devices are disposed beside the light incident surface of the light guide plate. Each of the light emitting devices has a light emitting surface facing to the light incident surface, wherein the light emitting surface provides a light beam. The composite optical film is disposed between the light emitting surface and the light incident surface and includes a diffusion layer and a partially transmissive and partially reflective layer.05-17-2012
20130016526LIGHTING ASSEMBLY WITH CONTROLLED CONFIGURABLE LIGHT REDIRECTION - A lighting assembly has an edge-lit light guide having a light output surface through which light is extracted by light extracting optical elements. The extracted light has a maximum intensity at low light ray angles relative to the light output surface. A light redirecting member has an arrangement of light redirecting optical elements configured to redirect the extracted light incident thereon to provide a pattern of redirected light. A light focusing member has light focusing optical elements having an angular acceptance range. The redirected light has light ray angles within the angular acceptance range of the light focusing optical elements and is perceived as a pattern of light. The extracted light not redirected by the light redirecting member has light ray angles outside the angular acceptance range of the light focusing optical elements and is not perceived, or is perceived as background light.01-17-2013
20100254158Visual Morphing Using Directionally Selective Microprisms - An optical waveguide (10-07-2010
20100290249OPTIC FILM AND BACKLIGHT MODULE USING SAME - An optic film includes a body and a condensation layer. The body is formed by stacking a plurality of substrates made of different materials. By means of the different physical characteristics of the different materials, the optic film realizes excellent optic performance. Also provided is a backlight module using the optic film.11-18-2010
20120127755LIGHT GUIDE PLATE AND BACKLIGHT MODULE - A light guide plate is adapted for guiding a light beam provided by a light emitting device. The light guide plate includes a light-transmissive substrate, a plurality of optical microstructures, and a plurality of diffusion particles. The light-transmissive substrate has a first surface, a second surface, and a light incident surface. The second surface is opposite to the first surface. The light incident surface connects the first surface and the second surface. The light beam is capable of entering the light-transmissive substrate through the light incident surface. The optical microstructures are disposed on the second surface. The diffusion particles are distributed in the light-transmissive substrate, and a haze value of the light guide plate is greater than or equal to 0.4% and smaller than or equal to 80%. A backlight module using the light guide plate is also provided.05-24-2012
20100208493LIGHT GUIDE PLATE AND DISPLAY APPARATUS COMPRISING THE SAME - A light guide plate includes a plurality of quantum dots on at least one of a surface of the light guide plate and inside the light guide plate, wherein the plurality of quantum dots emit light having a different wavelength than a light incident thereto.08-19-2010
20120134177LIGHT GUIDE PLATE FOR SURFACE LIGHT SOURCE DEVICE AND BACKLIGHT UNIT USING THE SAME - A light guide plate for a surface light source device is provided, which includes an incident surface configured to have light from lamps disposed along a predetermined axis, be incident thereon, an emitting surface configured to have the incident light emitted therefrom, a back surface configured to face the emitting surface, and a plurality of unit cells configured to have microprism patterns engraved thereon and distributed and arranged on the back surface. A crossing angle of a microprism arrangement axis, formed by a ridge direction of the microprism patterns, and of an arrangement axis of the lamps is disposed in an alternate angle. The light guide plate has a high front brightness and an excellent uniformity in brightness and does not have a moire phenomenon. In a backlight unit, the use of optical sheets stacked on the light guide plate can be reduced.05-31-2012
20110205757THIN LIGHT EMITTING MODULAR PANEL SYSTEM - An improved and novel system is needed to provide a lighting to a room using light emitting diode (“LED”). The novel system utilizes a thin edge panel composed of LEDs, plates and a polycarbonate material. The plates are manufactured from injection molded technology and include guides to allow various panels to be connected to one another. The novel system can be secured to ceilings and walls to provide an efficient and cost effective lighting solution in lieu of current lighting systems, such as fluorescent lighting systems.08-25-2011
20120075883EDGE-TYPE LED BACKLIGHT MOUDLE - The present invention relates to an improved edge-type LED backlight module, comprising: a cover, a printed circuit board (PCB), a plurality of LEDs, a reflective member, a light guide plate (LGP), and a bottom reflective member, wherein the PCB, the plurality of LEDs, and the reflective member are disposed in the cover, the reflective member is used for reflecting a light emitted by the LEDs. A light incident surface of the LGP having a plurality of concave arc-shaped surfaces which are opposite to the plurality of LEDs, respectively, so that, when the light incident into the light incident surface, the light can be extended by the concave arc-shaped surfaces and evenly distributed in the LGP 03-29-2012
20110096564BACKLIGHT ASSEMBLY AND DISPLAY APPARATUS HAVING THE SAME - A display apparatus includes; a plurality of light sources which emit a light, a display panel which displaying an image using the light, a light guide plate which guides the light emitted from the light sources to the display panel, and a plurality of reflection members that are spaced apart from each other and coupled with a first side of the light guide plate and a second side of the light guide plate facing the first side to reflect light traveling inside the light guide plate to the first and second sides, wherein the plurality of light sources include; a plurality of first light sources, each of the plurality of first light sources being arranged corresponding to an area between two adjacent reflection members of the plurality of reflection members on the first side and a plurality of second light sources each being arranged corresponding to an area between two reflection members on the second side.04-28-2011
20120224388BACKLIGHT SOURCE STRUCTURE HAVING SENSING FUNCTION AND PLATE BODY THEREOF - A backlight source structure having a sensing function includes a plate body, an invisible light source and a light sensing plate, where the plate body includes a transparent plate, a partial reflection layer and a transparent material layer coupled to each other in sequence. The partial material layer can reflect invisible light partially, and allow invisible light to pass through partially and visible light to pass through fully. The invisible light projected in via the lateral end face of the plate body can be projected out from the front end face of the plate body, and the transparent plate. A position of the transparent plate on which a body touches can be detected by the light sensing plate.09-06-2012
20120257413SPREAD ILLUMINATING APPARATUS - A side-light type spread illuminating apparatus includes a light guiding plate; a light source arranged along a light entering face of the light guiding plate; a double-sided prism sheet arranged at a light emitted face side of the light guiding plate; and an optical member arranged at a back face side facing the light emitted face of the light guiding plate. The optical member includes a light absorption member allowing prevention of reflection of light that has been introduced into the optical member.10-11-2012
20120257412OPTICAL PLATE, DISPLAY APPARATUS HAVING THE SAME, AND METHOD OF MANUFACTURING THE OPTICAL PLATE - A display apparatus includes a light source, a display panel and an optical plate between the light source and the display panel. The optical plate includes a supporting sheet, a first, a second and a third optical layer. The first optical layer is disposed on a bottom surface of the supporting sheet and has a plurality of first protruding portions on a bottom surface of the first optical layer and has a first refractive index. The second optical layer is disposed on the bottom surface of the first optical layer and covers the first protruding portions. The second optical layer has a second refractive index larger than the first refractive index. The third optical layer is disposed on a top surface of the supporting sheet and has a plurality of second protruding portions on a top surface and has a third refractive index smaller than the second refractive index.10-11-2012
20120262941SEMICONDUCTOR LIGHT EMITTING DEVICE PACKAGE - Disclosed herein is a semiconductor light emitting device package including a body, first and second reflective cups disposed under a top surface of the body and spaced apart, a first connection pad disposed under the top surface of the body and spaced apart from the first and second reflective cups, a second connection pad disposed under the top surface of the body and spaced apart from the first and second reflective cups and the first connection pad, a first semiconductor light emitting device disposed within the first reflective cup, and a second semiconductor light emitting device disposed within the second reflective cup.10-18-2012
20100238685LIGHT DIFFRACTION MEMBER AND DISPLAY AND BACKLIGHT MODULE HAVING THE SAME - A display including a display panel and a backlight module adjacent to the display penal is provided. The backlight module includes a light source emitting a light beam and at least one light diffraction member. The light diffraction member includes a first surface, a second surface, an azimuth convergence structure and a light diffraction structure. The second surface is opposite the first surface, and the light beam enters the light diffraction member through the second surface and leaves the light diffraction member from the first surface. The azimuth convergence structure is disposed on the second surface for converging the azimuth of the light beam incident thereon. The light diffraction structure is disposed on the first surface for adjusting the emergence angle of the light beam.09-23-2010
20080298084LIGHTING SYSTEM FOR THIN REFLECTIVE DISPLAY DEVICES - A display for a mobile communication device is disclosed. The display may include a first layer with refractive index n12-04-2008
20120268966LIGHTING ASSEMBLY - A lighting assembly includes a light guide having a first major surface, a second major surface opposite the first major surface, a light input edge, and an end edge distal the light input edge. Light input to the light guide through the light input edge propagates by total internal reflection toward the end edge. The lighting assembly further includes light extracting elements at least one of the major surfaces of the light guide, the light extracting elements configured to extract light through the first major surface in a direction away from the light input edge and away from the first major surface, and a banding reduction element at the end edge configured to redirect light incident thereon in a direction away from the light input edge.10-25-2012
20110222310LIGHT EMITTING PANEL ASSEMBLIES - Light emitting assembly comprises a light transition member and a light source mounted or positioned within the light transition member. A transparent light emitting panel member conducts light received from the light source. On or in one or more surfaces of the panel member is a pattern of light extracting deformities. A cavity or recess in the panel member is shaped to receive the light transition member to facilitate placement of the light source in a modular manner.09-15-2011
20100232178Light Guide Plate Assembly - Alight guide plate assembly for a backlight module is provided. The light guide plate assembly includes a plurality of light guide plates. Each light guide plate has a top face, at least one side face, and at least one connecting part. The connecting part is formed on the side face of the light guide plate. The connecting part has a connecting face, wherein the adjacent connecting faces are connected to each other. The top faces of the plurality of light guide plates are coplanar. A distance between the connecting face and the top face is ⅓ to 1/20 of the thickness of the light guide plate.09-16-2010
20120087148Backlight Module and Display Device and Electronic Device Using the Same - A backlight module for a display device is provided. The backlight module mainly includes a light guide plate and a first quantity of light emitting elements. The light guide plate includes a first incident plane with a first length. Each of the light emitting elements emits light to form a specific emitting region and is disposed at a position away from the first incident plane in a first distance, and a first interval is between each adjacent light emitting elements. The first interval equals to the ratio of the first length to the first quantity, and the ratio is between eight and forty. The non-intersection area of the emitting region of each two adjacent light emitting elements is outside the display area of the display device.04-12-2012
20110305037Pillar Light Emitting Module - A pillar light emitting module including a light guide bar, a first sleeve, a second sleeve, at least two light sources and a plurality of first diffusion structures is provided. The light guide bar has a first end and a second end corresponding to the first end. The first sleeve holds the first end of the light guide bar and has a first bottom surface. The second sleeve holds the second end of the light guide bar and has a second bottom surface. Two light sources are respectively face the first end and the second end respectively and disposed adjacent to the first bottom surface and the second bottom surface respectively for emitting light to enter the light guide bar. The first diffusion structures are disposed on the first bottom surface and the second bottom surface respectively for guiding the light to the light guide bar.12-15-2011
20120092891Illuminating Device and Display Device - An illuminating device acceding to the present invention has light sources, a light guide body which emits lights incident from the light sources, and a blurring structure, and, on the surface opposing to the emission surface of the light guide body, the light deflection elements which guide lights incident from the light sources toward the emission surface are formed regularly in two-dimensional direction of the first direction and second direction. The blurring structure has a function of blurring the light deflection elements regularly formed in the two-dimensional direction, and this blurring structure converts incident lights into linear lights inclined in the direction of the angle θ with respect to the first direction.04-19-2012
20120092890Surface Light Source Assembly - A surface light source assembly is disclosed. The surface light source assembly includes a light guide plate, a reflective sheet, a light diffuser sheet and a transparent cover arranged in front of the light diffuser sheet, an insert-nut embedded in the light guide plate, and a supporting frame having a vertical plate and a screw movable hole arranged on the vertical plate. In the insert-nut, a screw is screwed from an end holding frame overlapped on both ends of the supporting frame and arranged in both ends of the light guide plate via the screw movable hole. The screw can be moved in the screw movable hole depending on a heat expansion and contraction of the light guide plate.04-19-2012
20120327685LIGHT GUIDE PLATE FOR BACKLIGHT AND MANUFACTURING METHOD THEREFOR - A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit.12-27-2012
20120140518LIGHTGUIDE - Flexible unitary lightguide and a method of making the same are disclosed. The lightguide includes a structured input side that includes a first pattern having smaller features superimposed on a second pattern having larger features. The lightguide further includes a structured top surface that includes a first region and a different second region. The first region includes a plurality of discrete light extractors for extracting light that propagates within the flexible unitary lightguide by total internal reflection. The second region includes a taper portion for directing light from the structured input side to the first region. The light extractors form a periodic array that has a first period along the length of the flexible unitary lightguide. The first period is such that substantially no visible moir fringes occur when the flexible unitary lightguide is used as a backlight in a pixelated display.06-07-2012
20120140517ILLUMINATION DEVICE - This invention has an object to provide an illumination device capable of selecting freely the contour of the light emitting portions and the light distribution feature according to the shape of the institution installed with this device and to user's desires, suppressing light brightness differences as well as light intensity profile differences due to viewing angle upon improving the light outputting efficiency, and being manufactured with lower costs. The invented illumination device includes plural light guide plates formed with reflection dots reflecting a shape of processing dots by pressing the matrix shaped processing dots provided at an ultrasound processing horn, an LED light source for rendering LED light enter into the light guide plates, and a holding member for holding the LED light source, wherein the plural light guide plates are arranged to have a major surface having the reflection dots to be angled differently.06-07-2012
20120140516LIGHT GUIDE DEVICE AND BACKLIGHT MODULE - The backlight module comprises a light guide device, pluralities of light sources and at least one optical film. The light guide device further contains body, first microstructures, second microstructures, flat portions and diffusive beads. The first microstructures are disposed on reflective surface. A first point and a second point are disposed at two ends of the first microstructure with a first width (P06-07-2012
20130021819MULTI-DOMAIN DYNAMIC-DRIVING BACKLIGHT MODULE - A multi-domain dynamic-driving backlight module is provided, which includes a bezel, a reflective plate, a plurality of light emitting units, and a plurality of light guide plates. The reflective plate is disposed on the bezel. The light guide plates respectively have a short side and a long side extending in a predetermined direction, wherein each of the light emitting surfaces of the light guide plates includes a plurality of patterned structures extending in a direction parallel to the light projection direction of the light emitting units. Each of the light emitting surfaces includes a patterned surface includes a plurality of patterned structures extending in a direction parallel to the light projection direction of the light emitting units.01-24-2013
20130170248LIGHT GUIDE PLATE HAVING SAG CONTROL PATTERNS AND BACK LIGHT UNIT USING THE SAME - The present invention relates to a backlight unit with sag control patterns, comprising a light source formed in a side surface of a light guide plate; and a plurality of optical patterns formed on a lower surface of the light guide plate, sag of the plurality of optical patterns increasing as the optical patterns become more distant from the light source. By controlling sag of optical patterns formed in a light guide plate, efficiency of light emitted from a backlight unit can be improved and uniformity of the light can be maintained. Also, since sag of optical patterns can be controlled, by increasing the number of optical patterns (by improving fill factor), light efficiency and uniformity can be controlled easily. Also, compared with a conventional method for manufacturing white dot patterns, white dot patterns can be more efficiently manufactured in terms of development time and costs.07-04-2013
20130135895SURFACE LIGHT SOURCE DEVICE - A surface light source device is provided. In a rear surface of a light guide plate (05-30-2013
20130170246Backlight Unit Integrally Formed with Conductive, Chemically Toughened Glass and Method for Fabricating the same - A backlight unit integrally formed with conductive, chemically toughened glass and method for fabricating the same is disclosed. The integrally formed backlight unit uses conductive, chemically toughened glass as substrate and comprises a diffusion layer, a light guide layer, an optical microstructure layer, a transparent layer, a reflective layer and a light source module. The integrally formed backlight unit is fabricated using photochemical lithography, printing-coating, and ultrasonic hot melt adhesion processes, and offers the advantages of high luminance, ultra thinness and high efficiency in fabrication. The backlight unit product can be designed as bottom lit or edge lit and used mainly for the illumination of keyboards or non-self-luminous display devices.07-04-2013
20130201720ILLUMINATION DEVICE HAVING VISCOELASTIC LIGHTGUIDE - Illumination device having a viscoelastic lightguide and a flexible light source is described. The flexible light source includes a plurality of electrically inter-connected light emitting diodes disposed on a flexible mat and optically coupled to the viscoelastic lightguide.08-08-2013
20130121024PLANAR LIGHT GUIDE AND LIGHTING DEVICE - A planar light guide includes a main body with a back face and a radiation outcoupling face opposite thereto, a main direction of light guidance parallel to the radiation outcoupling face, at least one plurality of identically shaped and identically oriented outcoupling structures formed on at least one of the main faces, and at least one structure main face per outcoupling structure, wherein an angle-dependent emission characteristic is provided asymmetrically in a first plane parallel to the main direction of light guidance and perpendicular to the radiation outcoupling face.05-16-2013
20110273907PLANAR LIGHTING DEVICE - A planar lighting device using a large and thin light guide plate and yet capable of yielding a high light use efficiency, emitting light with a minimized unevenness in luminance, and guiding the admitted light deep into the light guide plate to achieve a uniform or convex luminance distribution, i.e., a distribution curve that is high in a range near the middle of the screen as compared with the peripheral area of the screen. The light guide plate is provided on its rear side, or on the side thereof closer to the light exit plane, or on both sides in a given pattern with a distribution density changing continuously so as to once decrease with the increasing distance from the light entrance plane, and then increase with the increasing distance.11-10-2011
20110273906FRONT ILLUMINATION DEVICE COMPRISING A FILM-BASED LIGHTGUIDE - A reflective display includes a reflective spatial light modulator and a frontlight. The frontlight includes a lightguide formed from a film. The lightguide includes an array of coupling lightguides continuous with a lightguide region of the lightguide. One or more light sources emit light into the array of coupling lightguides. Light from each coupling lightguide combines and totally internally reflects within the lightguide region. Light extraction features frustrate totally internally reflect light within the lightguide region such that the light exits the lightguide toward the reflective spatial light modulator in a light emitting region of the film. A cladding region is optically coupled to the lightguide so light from the light source propagates into the cladding region. A light extracting region is operatively coupled to the cladding region opposite the lightguide, and light in the cladding region is extracted. A method of producing a display is also disclosed.11-10-2011
20110273905EDGE-LIT BACKLIGHT MODULE - An edge-lit backlight module includes a back plate, a light bar, and a light guide plate. The back plate has a bottom plate and four lateral sides. Each of the lateral sides is perpendicular to the bottom plate and connected to a peripheral edge of the bottom plate. The light bar is disposed on a side of an internal face of one of the lateral sides to leave at least one accommodation space on the lateral side. The light guide plate has at least one extension portion corresponding to the accommodation space. The light guide plate is disposed on the bottom plate, and each extension portion of the light guide plate engages with the corresponding accommodation space for fixing the light guide plate onto the back plate.11-10-2011
20110228557SURFACE LIGHT SOURCE DEVICE - A surface light source device can be configured to increase front luminance as compared to certain conventional light sources. The surface light source device can include a light guiding plate having a first end surface and a second end surface, a light exiting surface formed to have a light exiting portion and a tapered surface disposed opposite to the light exiting surface. A light source can be disposed along the first end surface of the light guiding plate, and a reflection sheet can be disposed on the tapered surface of the light guiding plate. A prism sheet having a prism surface can face toward the light exiting portion of the light guiding plate. The light exiting portion can be disposed a predetermined entrance length away from the first end surface along the light exiting surface so that the light exiting surface can form a predetermined taper angle with the tapered surface.09-22-2011
20120275186LIGHT EMITTING DEVICE PACKAGE - A light emitting device package includes a body, a first reflective cup and a second reflective cup disposed in a top surface of the body spaced from each other, a connection pad disposed in the top surface of the body spaced apart from the first reflective cup and the second reflective cup, a recess formed in the top surface of the body spaced apart from the first reflective cup, the second reflective cup, and the connection pad, a first semiconductor light emitting device disposed in the first reflective cup, a second semiconductor light emitting device disposed in the second reflective cup, and a Zener diode disposed in the recess, wherein the first reflective cup and the second reflective cup are recessed from the top surface of the body.11-01-2012
20100315833THIN ILLUMINATION SYSTEM - The present invention introduces a new class of thin doubly collimating light distributing engines for use in a variety of general lighting applications, especially those benefiting from thinness. Output illumination from these slim-profile illumination systems whether square, rectangular or circular in physical aperture shape is directional, square, rectangular or circular in beam cross-section, and spatially uniform and sharply cutoff outside the system's adjustable far-field angular cone. Field coverage extends from +/−5- to +/−60-degrees and more in each meridian, including all asymmetric combinations in between, both by internal design, by addition of angle spreading film sheets, and angular tilts. Engine brightness is held to safe levels by expanding the size of the engine's output-aperture without sacrifice in the directionality of illumination. One form of the present invention has a single input light emitter, a square output aperture and the capacity to supply hundreds of lumens per engine. A second multi-segment form of the invention deploys one light emitter in each engine segment, so that total output lumens is determined by the number of segments. Both types of thin light distributing engines provide input light collimated in one meridian and a light distributing element that maintains input collimation while collimating output light in the un-collimated orthogonal meridian, in such a manner that the system's far-field output light is collimated in both its orthogonal output meridians. The present invention also includes especially structured optical films that process the engine's doubly collimated output illumination so as to increase its angular extent one or both output meridians without changing beam shape or uniformity.12-16-2010
20100315832ILLUMINATION SYSTEM AND DISPLAY DEVICE - The invention relates to an illumination system (12-16-2010
20110286241LIGHT SOURCE MODULE - A light source module including a back frame, a light guide plate (LGP), and at least one light emitting device is provided. The back frame has a baseboard. The LGP is disposed on the back frame, and has a first surface, a second surface opposite to the first surface, and a light incident surface, wherein the second surface faces toward the baseboard. The light emitting device is disposed beside the light incident surface. The light source module further includes a thermal insulating element, which is disposed between the baseboard and the second surface, and is located adjacent to the light incident surface.11-24-2011
20130188390COLOR FILTER AND EDGE-TYPE BACKLIGHT MODULE USING THE SAME - A color filter comprises a first filter element and a second filter element. The first filter element includes a plurality of arrayed filter regions allowing a first spectral component of incident light to pass and reflecting other spectral components of the incident light. The second filter element includes a plurality of arrayed filter regions allowing a second spectral component of the incident light to pass and reflecting other spectral components of the incident light. The center of the filter regions of the second filter element is deviated from the center of the filter regions of the first filter element so that the light reflected from the first filter element can pass through the second filter element. Thereby is enhanced the energy efficiency of the color filter. An edge-type backlight module using the abovementioned color filter is also disclosed.07-25-2013
20120002441AREA LIGHT SOURCE DEVICE - An area light source device has a diffusion plate and a prism sheet stacked on a light guide plate, and a light source disposed opposite an end face of the light guide plate. Light emitted from the light source is introduced to an inside of the light guide plate from the end face. Area light emission is obtained by outputting the light diffused in the light guide plate from the diffusion plate and the prism sheet through a front face disposed opposite the diffusion plate. The light guide plate includes a light guide section that includes the end face disposed opposite the light source, a light emitting section that is disposed opposite the diffusion plate, and a joining section that joins the light guide section and the light emitting section. The front surface in the joining section includes an inclined surface that is gradually retreated toward a rear surface on an opposite side from the light guide section toward the light emitting section. The front faces of the light guide section and the joining section are covered with a light shielding member. The light shielding member is fixed to the diffusion plate without interposing the prism sheet therebetween. The light shielding member and the inclined surface are arranged to allow air to be interposed therebetween.01-05-2012
20120002440OPTICAL DEVICE WITH LENTICULAR ARRAYS, EDGE-TYPE BACKLIGHT MODULE AND DIRECT-TYPE BACKLIGHT MODULE - An edge-type backlight module and a direct-type backlight module with a optical device are provided. The optical device comprises an array layer and a second refractive layer. The array layer has a first refractive index (n01-05-2012
20120020111METHOD FOR MANUFACTURING A FLEXIBLE OPTICAL PLATE, PRODUCT AND BACKLIGHT MODULE MADE THEREWITH - A method for manufacturing a flexible optical plate includes steps of: (A) positioning a metallic mask on a surface of a mother substrate; (B) irradiating a carbon dioxide laser beam through the metallic mask to form cavities on the surface of the mother substrate; (C) coating a polymer material on the surface of the mother substrate to fill the cavities; and (D) drying the coated polymer material to form the flexible optical plate, the flexible optical plate having a substrate on the surface of the mother substrate and microstructures protruding from the substrate and each corresponding to one of the cavities.01-26-2012
20130194823BACKLIGHT UNIT - A backlight unit includes a light source capable of emitting light, and a light guide plate including a peripheral surface on which the light from the light source is incident, a main surface provided to be connected with the peripheral surface, and a main surface facing the main surface with the peripheral surface interposed therebetween, the light guide plate including a reflection surface capable of reflecting the light that has entered from the peripheral surface toward the main surface, and a lens formed on the main surface capable of condensing the light reflected by the reflection surface and emitting the light to outside.08-01-2013
20120075884LIGHTING DEVICE EMPLOYING A LIGHT GUIDE PLATE AND A PLURALITY OF LIGHT EMITTING DIODES - The present invention relates to a lighting device including a light guide plate, and at least one array of light emitting diodes (LEDs), which LEDs are accommodated in holes arranged in the light guide plate. In some embodiments, the device is characterized by an array of lenses arranged such that light emitted by the LEDs passing the lens array is at least partly directed towards areas of the light guide plate free from holes.03-29-2012

Patent applications in class Combination of two or more modifiers