Abstract: The optical waveguide sheet of the present invention is for use in an edge-lit backlight unit of a liquid crystal display unit of laptop computers having a housing thickness of no greater than 21 mm, and includes: an optical waveguide layer containing a polycarbonate-based resin as a principal component; and a hard coat layer laminated on the back face side of the optical waveguide layer, an average thickness of the optical waveguide sheet being no greater than 600 ?m. An average thickness of the hard coat layer is preferably from 2 ?m to 20 ?m. The optical waveguide sheet preferably further includes a lower refractive index layer that is laminated on the back face of the optical waveguide layer and has a refractive index lower than that of the optical waveguide layer, and the hard coat layer is preferably laminated on the back face of the lower refractive index layer.

Abstract: The optical waveguide sheet of the present invention is an optical waveguide sheet for use in an edge-lit backlight unit of a liquid crystal display unit of laptop computers having a housing thickness of no greater than 21 mm, and includes an optical waveguide layer containing a polycarbonate-based resin as a principal component; and a protective layer laminated on the back face of the optical waveguide layer, the protective layer containing an acrylic resin as a principal component, wherein an average thickness of the optical waveguide sheet is no lower than 250 ?m and no greater than 600 ?m. An average thickness of the protective layer is preferably no less than 10 ?m and no greater than 100 ?m, and a relative refractive index of the protective layer with respect to the optical waveguide layer is preferably no greater than 0.95.

Abstract: A display module is provided. The display module includes a frame, a light guide plate, a light source device, a display panel and an optical film. The light guide plate is accommodated within the frame. The light guide plate has a recess. The light source device is disposed between the frame and the light guide plate. The display panel is disposed on the recess and attached to the light guide plate to seal the recess. The optical film is located within the recess. A handheld electronic device having said display module is also provided.

Abstract: An electronic device includes a display module, a base and a keyboard module. The display module is pivoted on the base. The keyboard module is disposed on the base. The keyboard module has a plurality of keys. Each of the keys includes a main body and an imprinted structure. The main body has a top surface. The imprinted structure is disposed on the top surface of the main body and includes a light guiding portion and a light scattering portion. A light emitted by the display module illuminates the keyboard module. The light is guided towards a specific direction when the light passes through the light guiding portion, and the light is scattered in other directions when the light passes through the light scattering portion.

Abstract: An illumination device and a lens thereof are provided. The lens includes a surrounding sidewall, a light-incident surface, a light-incident structure, and a light-emitting surface. The surrounding sidewall includes two planar portions opposite to each other and two arc-surface portions opposite to each other to surround a reference axis. The light-incident surface is located at a side of the surrounding sidewall to receive a light emitted from a point light source. The light-incident structure located on the light-incident surface includes a plurality of bar-shaped protrusions. Each bar-shaped protrusion includes a plurality of first light-diffusing surfaces not parallel to the light-incident surface. The light-emitting surface is located at the other side of the surrounding sidewall and is opposite to the light-incident surface. The light-emitting surface is substantially circular. A cross-section area of the lens gradually increases from the light-incident surface to the light-emitting surface.

Abstract: An edge-lit light panel is disclosed, which includes a generally planar, transparent light guide. Light, such as from one or more solid state light source arrays, is coupled into the light guide through its lateral edge, and propagates generally laterally within the light guide via total internal reflection. A diffuser is attached to the front or rear face of the light guide, such as by lamination. The diffuser may have a refractive index matched to that of the light guide. The light guide may have one or more concave features on its lateral edge to reduce reflection losses at high angles of incidence. The concave features may include a single, one-dimensional groove that includes all the solid state light sources along a particular straight edge of the light panel, or may include a series of concave dimples, with one dimple for each solid state light source.

Abstract: Disclosed is a liquid crystal display (LCD) device capable of enhancing brightness uniformity by preventing light leakage. The LCD device comprises an LC panel; an optical source for providing light to the LC panel; a light guide plate coupled to a light emission surface of the optical source; a light emitting diode (LED) printed circuit board (PCB) disposed on the light guide plate and the optical source; an optical sheet disposed on the light guide plate, and having a diffusion plate and a prism sheet on an upper surface of one side corresponding to the LED PCB, the diffusion plate having a light shielding member attached thereto; and a mold frame for accommodating therein the optical source, the light guide plate, and the optical sheet.

Abstract: A light modulator includes a light guide to guide light, a diffraction grating at a surface of the light guide, and a fluid having a refractive index substantially matched to a refractive index of the diffraction grating. The diffraction grating is to couple out a portion of guided light from the light guide using diffractive coupling. The index-matched fluid is to be selectively moved both into contact with the diffractive grating to defeat the diffractive coupling and out of contact with the diffraction grating to facilitate the diffractive coupling to modulate the coupled out guided light.

Abstract: The present invention is a display assembly in which a backlight module generates light beams via a light source. The light source provides the light beams to a light guide of the backlight module. The light guide then provides the light beams to a display panel of the display assembly for illuminating the display panel. One or more optical elements are implemented between the light source and an insertion edge of the light guide for promoting improved light insertion efficiency for the display assembly. Further, the optical element(s) may promote improvements in color quality, luminance and/or uniformity of graphics or graphical depictions displayed by the display assembly.

Abstract: In accordance with certain embodiments, semiconductor dies are embedded within polymeric binder to form, e.g., freestanding white light-emitting dies and/or composite wafers containing multiple light-emitting dies embedded in a single volume of binder.

Abstract: The present invention relates to a backlight module suitable for transportation, which comprises a backlight unit, the backlight unit comprises a backplate, and a light source, as well as an optical film, a light guide plate and a reflection plate arranged on the backplate from up to down in turn; the backlight module further comprises a fixing belt used for fixing the optical film, the fixing belt being tightly wound outside the backlight unit along at least one of the length and width directions of the backlight unit. This backlight module uses the fixing belt to fix the optical film instead of using the rubber frame to press against the optical film, thus the cost of the rubber frame assembly is saved, the optical film can be prevented from translocating due to vibration, and the winding strength can be ensured to be moderate.

Abstract: A lighting module includes a first side light source; a second side light source; a first light guide plate disposed between the first side light source and the second side light source; a second light guide plate disposed between the first side light source and the second side light source and disposed below the first light guide plate; a reflective plate between the first light guide plate and the second light guide plate; a first case coupled to one side of the first light guide plate, coupled to one side of the second light guide plate, and receiving the first side light source; and a second case coupled to the other side of the first light guide plate, coupled to the other side of the second light guide plate, and receiving the second side light source.

Abstract: A display device includes a display panel and a backlight unit. The display panel alternately displays a left-eye image and a right-eye image during successive frame periods in a three-dimensional mode. The backlight unit includes a light source including a plurality of light emitting blocks and a light guide. The light guide includes a plurality of lenticular patterns formed on a first surface thereof and a plurality of light guide patterns formed on a second surface thereof. The lenticular patterns and the light guide patterns are extended in a first direction and arranged in a second direction crossing the first direction.

Abstract: Provided are a backlight unit and a display apparatus including the same. The backlight unit includes a bottom cover, a substrate, light sources, light guide panels, at least one reflective member, and an optical sheet. The substrate is in the bottom cover. The light sources are on the substrate to emit light at an orientation angle from a first direction. The light guide panels include a light incident part having a light incident surface to which light is incident in the first direction from the light sources, and a light emitting part that emits the incident light in a second direction crossing the first direction and has a side connected to the light incident part. The reflective member includes a reflective region overlapping the light guide panel and an extension region that does not overlap the light guide panel. The optical sheet is above the light guide panel.

Abstract: A backlight unit for a liquid crystal display device including a liquid crystal panel, includes: a light source including a light-emitting diode (“ED”) which generates and emits light; and a light converting layer between the light source and the liquid crystal panel, spaced apart from the light source, and converting the light from the light source into white light and emitting the white light toward the liquid crystal panel. The light converting layer includes: semiconductor nanocrystals, and a barrier material which restricts penetration of moisture or oxygen.

Abstract: The present invention provides a backlight module, which comprises a waveguide has an incident surface and light-emitting surface. A light source is arranged on a side of the incident surface. An optical module is arranged above the waveguide and facing the light-emitting surface. The optical module includes a least one optical film having a crease at one side thereof. At least a positioning arrangement is arranged on a side surface of the waveguide other than the incident surface. A space is defined between the positioning arrangement and the side surface of the waveguide. The crease of the optical film is received within the space. The present invention further provides a liquid crystal display module incorporated with a backlight module disclosed. Accordingly, when the optical films is experiencing an expansion or contraction resulted from temperature gradient, the robust can always make the optical films properly seated within the receiving space defined by the positioning arrangement and the waveguide.

Abstract: The present invention provides a light leakage prevention backlight unit comprising: a backplane for supporting the backlight unit; a heat dispassion bar disposed on the backplane and comprising a horizontal plate having an edge and a vertical plate extending from the edge of the horizontal plate and having an outer side and an inner side; a light bar disposed at the inner side of the vertical plate of the heat dispassion bar; a reflective plate, a light guide plate, and an optical film group sequentially disposed on the horizontal plate of the heat dispassion bar from bottom to top, wherein a light incident surface of the light guide plate is directly opposite to the light bar; an outer case disposed at the outer side of the heat dispassion bar and comprising multiple platforms, wherein the platforms are supported by the vertical plate of the heat dispassion bar, and some of the platforms are disposed above the outer peripheral of the optical film group; and a positioning piece disposed at an end portion of

Abstract: The disclosure discloses a backlight unit and a liquid crystal display comprising thereof. The backlight unit comprises a light guiding plate comprising a plurality of light guiding plate units, which are arranged as a matrix along longitudinal and traversal directions, with line-shaped gaps extending respectively along traversal or longitudinal direction existing between two adjacent light guiding plate units; a light source provided at a side of light guiding plate; and a diffusing sheet provided above the light guiding plate. At a position corresponding to the line-shaped gap between the two adjacent light guiding plate units, the diffusing sheet has a shape of line-shaped projection, and the line-shaped projection has a projected direction in a direction of the light emitted from the light guiding plate unit. According to the disclosure, the uniformity of the backlight may be improved.

Abstract: Dimpled plates for light distribution and concentration are provided. Also provided are apparatus incorporating the plates as waveguides, and methods for using the dimpled plates for distributing or concentrating input light. The dimpled plates are designed to spatially distribute light from each of one or more near point light sources into a pixelated light projection using an array of reflective conical light deflection elements.

Abstract: Discussed are a backlight unit and an LCD device using the same. The backlight unit according to an embodiment includes a light source; a light guide plate facing the light source; a plurality of protrusion patterns provided on the bottom of the light guide plate; an optical sheet disposed on the light guide plate; and a reflector disposed under the light guide plate, wherein each of the plurality of protrusion patterns has a cross-sectional structure comprising a first side that is a portion of the bottom of the light guide plate, a second side that extends from one end of the first side, and a third side that extends from the other end of the first side.

Abstract: A light-emitting device includes: a light guiding member; a plurality of light-emitting elements; and a reflection member. A light reflection/exit surface of the light guiding member has a concave-convex pattern including a plurality of convex portions reflecting light emitted from the light-emitting elements inward. On the assumption that L is a distance between the light-emitting elements, t is a thickness of the light guiding member, an incident angle ? of the light on the light reflection/exit surface is an angle between a line segment obtained by projecting a light path from the light-emitting element to the light reflection/exit surface and a line segment extending from a central point of the light-emitting element to the light reflection/exit surface, and ? is a maximum angle range of reflected light, a value of the angle range ? decreases as a value of the incident angle ? increases in a range of 0<?<tan?1 (L/t).

Abstract: 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.

Abstract: A light guide plate comprises a light incidence surface for receiving light rays; a transforming fluorescent powder disposed on the light incidence surface for converting the light rays into white rays; a reflection surface for reflecting the light rays and destroying total internal reflection formed inside the light guide plate to generate planar light rays; a light emitting surface for emitting the planar light rays; and a lateral reflection surface disposed away from the light incidence surface for reflecting the light rays from the light incidence surface and the reflection surface; the lateral reflection surface having a compensative fluorescent powder disposed thereon for adjusting a color of the planar light rays. The light guide plate can reduce the backlight color difference for a panel of a single-end incident type to improve visual quality level and the quality of products.

Abstract: Systems, methods, and devices for preventing scratching artifacts on a light guide plate of a backlight are provided. In one example, an electronic device may include a processor to generate image data and a display to display the image data. The display may include a liquid crystal display panel and a backlight unit. A light guide plate and a diffuser of the backlight may be separated at least partly by a light guide plate scratch protection component. The light guide plate scratch protection component may be a pattern of molded convex bumps on the light guide plate, a self-healing coating, a nonstick (e.g., Teflon) coating, or some combination of these surfaces.

Abstract: An illumination device capable of suppressing formation of a double image in three-dimensional display, and a display unit including the illumination device are provided. In a light modulation device bonded to a light guide plate, a scattering region that scatters light propagating within the light guide plate, and a transmissive region that allows light propagating within the light guide plate to pass therethrough are formed through control of an electric field. The scattering region scatters light to generate linear illumination light. A reflector is provided directly below the light modulation device. The reflector reflects light, which is part of the scattered light generated in the scattering region and is emitted to a reflector side, to generate reflected light to be focused directly below the scattering region.

Abstract: Optical films used for 3D autostereoscopic displays include lenses on one surface of the optical film that are registered to prisms on the opposing surface of the optical film. The lenses may be a-cylindrical lenses or cylindrical, and the rotation of the lenses can vary with position on the surface of the optical film. The prisms may be contiguous or non-contiguous. The prisms of the optical film can have a pitch that is different from a pitch of the lenses, or the prism pitch can be substantially the same as the pitch of the lenses.

Abstract: An illumination unit includes LEDs and a tabular light guide plate having a light emitting surface for emitting light from the LEDs as planar light, wherein a recessed portion is formed in the opposite surface of the light emitting surface of the light guide plate, and the LED is provided in the recessed portion so that the optical axis of the LED becomes parallel to the light emitting surface of the light guide plate. Here, a dimming pattern is provided at a location corresponding to the LED of the light emitting surface of the light guide plate, and furthermore a first light guide pattern is provided on the light emitting surface of the light guide plate and a second light guide pattern is provided on a rear surface that is a reflective surface.

Abstract: 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.

Abstract: The invention relates to a solid state lighting strip (100) for mounting in or on a panel support element (210) of a modular panel system (200). The strip comprises a plurality of solid state lighting elements (110, 110?), a light extraction layer (120) and a glare reducing layer (130). The solid state lighting elements are arranged such that the light emitted by said elements is coupled into the glare reducing layer via the light extraction layer. The solid state lighting strip (100) can be used as part of alighting system, a panel support element (210) and a modular panel system (200).

Abstract: A liquid crystal display and a backlight unit can prevent deformation of an optical sheet. The liquid crystal display includes a light source, a light guide plate positioned to be close to the light source, an optical sheet positioned on the light guide plate and including an ear protruding on its side surface, a liquid crystal panel positioned on the optical sheet, and a receiver receiving the optical sheet, where the receiver includes a sidewall, the sidewall includes ear insertion grooves positioned to extend over the top and internal surfaces of the sidewall and to allow the ear to be inserted thereto, and the top surface of the sidewall overlaps at least a portion of the ear.

Abstract: The present invention relates to a light guide plate, a light-emitting unit having the light guide plate and a liquid crystal display device having the light-emitting unit. The light guide plate includes a light guide layer that has dot patterns. The dot patterns are formed by coating and drying a pattern-forming ink composition on a bottom surface. The pattern-forming ink composition includes an acrylate-based resin having a saturated alicyclic group (A) and a solvent (B). By utilizing the aforementioned light guide plate, the liquid crystal display device with low color difference can be fabricated.

Abstract: 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.

Abstract: Extended area lighting devices include a light guide and diffractive surface features on a major surface of the light guide. The diffractive surface features provide low distortion for viewing objects through the light guide. Light from discrete light source(s) is injected into the light guide, and the diffractive surface features interact with the injected light to couple guided-mode light out of the light guide. The out-coupled light produces one or more bands whose apparent shape changes with viewing position. The bands may be bright bands that correspond to the discrete light sources, or dark bands associated with an optional non-uniform reflective structure extending along a side surface of the light guide. Multiple bands may form a pattern that changes with viewing position, the pattern of bands having a 3-dimensional appearance for at least some viewing positions. The lighting devices can be used as luminaires for general lighting or decorative lighting.

Abstract: Extended area lighting devices include a light guide and diffractive surface features on a major surface thereof. The diffractive surface features include diffractive features of different pitches in non-overlapping regions of the major surface tailored to extract guided-mode light of different colors from the light guide in different directions. The diffractive features extract light such that an ordinary user observes substantially different colors in different regions of the light guide, providing a colorful appearance. Notwithstanding this, the diffractive features also extract light such that the lighting device illuminates a reference surface, disposed at an intermediate distance from the light guide, with illumination light that is substantially uniform in color and substantially white. Optical films having diffractive features that can be used to construct such devices and light guides are also disclosed.

Abstract: Extended area lighting devices include a light guide and diffractive surface features on a major surface of the light guide, at least some diffractive surface features adapted to couple guided-mode light out of the light guide. The diffractive features include first and second diffractive features disposed on respective first and second portions of the major surface. A patterned light transmissive layer, including a second light transmissive medium, optically contacts the second diffractive features but not the first diffractive features. A first light transmissive medium optically contacts the first but not the second diffractive features. The first and second portions may define indicia, and the first and second diffractive features provide low distortion for viewing objects through the light guide such that the indicia is not readily apparent to users when guided-mode light does not propagate within the light guide. Optical films having such diffractive features are also disclosed.

Abstract: A backlight device according to an exemplary embodiment of the present invention includes, wherein a light guide plate including a convex portion and a recess portion, a lower cover including a lateral surface cover part positioned adjacent to the convex portion, the lower cover surrounding the light guide plate, and a fixing member positioned between the light guide plate and the lateral surface cover part of the lower cover, in which the lateral cover part includes an opening, and the fixing member includes a first hook surrounding the convex portion and a second hook protruding through the opening of the lateral surface cover part.

Abstract: A lighting module may be provided that comprises: a first and a second light sources, which are disposed opposite to each other; a light guide plate disposed between the first light source and the second light source and including a top surface and a bottom surface; a first case including the first light source; a second case including the second light source; and an optical plate disposed on at least one of the top surface and the bottom surface of the light guide plate, wherein the optical plate reflects a part of light from the first and the second light sources and transmits the rest of the light.

Abstract: A backlight unit (20) includes: light sources (4A, 4B); light guide members (2A, 2B), the light source (4A) being provided to a side surface of the light guide member (2A), the light source (4B) being provided to a side surface of the light guide member (2B), the light sources (4A, 4B) being provided across the light guide members (2A, 2b) in plane view; and an optical path changing member (1) for changing an optical path of light passing through the optical path changing member, the optical path changing member (1) having a light incidence surface (SUF1) for receiving light emitted directly from the light guide member (2A or 2B), and a light exit surface (SUF2) for emitting, directly to a display panel outside of the backlight unit (20), the light thus received via the light incidence surface (SUF1).

Abstract: 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.

Abstract: A backlight module comprises a backplate having a baseplate and side plates, a direct-lit LED array, edge-lit LED arrays and a light guide panel. The light guide panel is located above the baseplate. The direct-lit LED array is disposed between the baseplate and the light guide panel. The edge-lit LED arrays are disposed at two sides of the light guide panel and facing light incident surfaces thereof respectively. Light scattering structures for scattering light rays are disposed on a light exiting surface or on a bottom surface of the light guide panels. With the LED arrays and the light scattering structures, the light guide panel is divided into three backlight regions. Displaying of the backlight module is controlled region by region by the light scattering structures and the LED drive circuit to improve the brightness of the backlight module and reduce the power consumption of the liquid crystal module.

Abstract: The present invention discloses a backlight module and a liquid crystal display (LCD). The backlight module includes a backplane, a light guide plate, a heat dissipation element and a connector. The light guide plate is disposed on the side of the backplane. The heat dissipation element includes a horizontal part and a vertical part interconnected to each other. The horizontal part is disposed on the other side of the backplane away from the light guide plate, and the vertical part is disposed next to light incident surface of the light guide plate. The light source is disposed on the side of the vertical part close to light incident surface. The connector connects the heat dissipation element to the backplane and allows the heat dissipation element to move relatively to the backplane in the gap direction between the light guide plate and the light source.

Abstract: A lighting assembly for liquid crystal alignment is disclosed. The lighting assembly includes a light guiding plate and a light source. The light guiding plate is made by quartz glass. The light guiding plate includes a light emitting surface, a light incident surface adjacent to the light emitting surface, and a bottom surface opposite to the light emitting surface. The light source faces toward the light incident surface of the light guiding plate. The light guiding plate contains a hydroxyl group in an amount less than or equal to 100 ppm. As the light source faces toward the light incident surface of the light guiding plate, the number of the light source may be reduced so that the light utilization rate is enhanced.

Abstract: A light guiding plate includes: a light guiding substrate; and a plurality of optical scattering patterns positioned on a first surface of the light guiding substrate. The plurality of optical scattering patterns respectively includes a binder, a scattering particle and a semiconductor nanocrystal. A color of light emitted from the plurality of optical scattering patterns is substantially the same.

Abstract: A circular LED light guide includes a top wall and a peripheral side wall; the top wall and the peripheral side wall cooperatively form a hollow receiving space. The hollow receiving space is used for receiving an LED therein. The top wall includes a light incident surface inside of the receiving space, and an exterior light output surface. The light incident surface includes a concave lens surface formed in a central area of the light incident surface, and the light output surface includes a convex lens surface formed in a central area of the light output surface. A central optical axis of the concave lens surface is aligned with a central optical axis of the convex lens surface. An LED module and a direct-type LED TV using the LED light guide are also provided.

Abstract: A display unit includes: a display section displaying an image; and a light source device emitting light for image display toward the display section, the light source device including one or more first light sources, a light guide plate, and an optical member, the first light sources emitting first illumination light, the light guide plate including a plurality of scattering regions that allow the first illumination light to be scattered and then to exit from the light guide plate, the optical member being disposed on a light-emission side of the light guide plate to face the light guide plate and allowing an angular distribution of luminance of the first illumination light emitted from the light guide plate to be varied.

Abstract: 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.

Abstract: A backlight unit having improved luminance and reduced profile, and a liquid crystal display including the same are disclosed. In one embodiment, the backlight unit includes: i) a light source, ii) a light guiding plate including an incoming surface on which light generated from the light source is incident, an upper surface substantially perpendicularly extended with respect to the incoming surface, and a bottom surface arranged facing the upper surface and iii) an optical sheet formed on the light guiding plate. The upper surface of the light guiding plate includes a guiding surface, an incoming surface, and an emission surface sequentially arranged close to the incoming surface of the light guiding plate, and the optical sheet may be formed to cover the inclined surface and the guiding surface.

Abstract: 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.

Abstract: A backlight module is disclosed. The backlight module includes a light guide plate, a backlight source, an optical plate, and an optical coating layer. The light guide plate has a light emitting surface and a light incident end. The light incident end is located at an adjacent side of the light emitting surface. The backlight source is disposed corresponding to the light incident end and generates lights emitting to the light incident end. The optical plate is disposed above the light emitting surface. The optical plate includes an extension portion extending disposed above the backlight source. The optical coating layer is formed on a surface of the extension portion.

Abstract: A display device includes a housing, a frame bonded to the housing, and a display module. The display module includes a back cover bonded to the frame, a light guide plate (LGP), a support element, a display panel, and an optical film set. The LGP is supported on the back cover and has a light exiting surface and an opposite back surface. At least two sides of the LGP's back surface are adhered on the back cover, and the LGP is made of glass. The support element and display panel are supported respectively on the LGP and support element. The optical film set is between the display panel and LGP. A hybrid LGP includes a first light guide sub-plates and a second light guide sub-plate. The second light guide sub-plate is stacked on and bonded to the first light guide sub-plate.