Abstract: To improve a workability in assembling and disassembling of parts of a lighting device. A backlight unit 12 includes an LED board 18 having LEDs 17, a chassis 14, a light guide member 19 having an end portion arranged to face the LEDs 17, a power supply board 21 arranged outside the chassis 14 and supplying drive power to the LEDs 17, and a connector 20 mounted to the chassis 14 and supplying power between the power supply board 21 and the LEDs 17. The connector 20 includes an LED board supporting portion 20a that supports the LED board 18, a power supply board supporting portion 20b having a plate surface along which the power supply board 21 is inserted into and removed from and that supports the inserted power supply board 21, and a connection terminal 28 that comes in contact with the power supply board 21 with allowing relative slide in an inserting and removing direction of the power supply board 21.

Abstract: This disclosure provides systems, methods and apparatus for illumination devices. In one aspect, an illumination device having a longitudinal axis includes a light source and a light guide. The light guide has a peripheral edge, a transmissive illumination surface, a center portion, and an upper surface. The transmissive illumination surface is oriented perpendicular to the longitudinal axis and disposed between the center portion and the peripheral edge. The upper surface is oriented relative to the illumination surface to define an angle ? therebetween. In some implementations, the angle ? can be greater than 15 degrees, for example.

Abstract: Techniques are disclosed for extracting light from within a lightguide by providing therein a plurality of internal light extraction features. A broad range of internal light extraction feature configurations (e.g., geometries/shapes, materials, refractive index changes, etc.) can be provided, and a variety of processes/techniques (e.g., 3-D printing, laser cutting/etching, injection molding, embossment, layer stacking, extrusion, etc.) can be used to do so. The features can be configured to achieve any desired set of photometric performance criteria (e.g., single/double-sided emission, optical efficiency, energy efficiency, spatial/angular luminance distribution, intensity gradients, etc.) for a given lightguide-based fixture/device. In some cases, internal and surficial light extraction features can be used together to extract light. Also, a wide variety of lighting fixtures/devices (e.g., panels, bulbs, tubes, rings, containers, three-dimensional structures/sculptures, multi-layered, multi-sectioned, etc.

Abstract: The invention discloses a light-emitting unit, comprising a backplane and a light source provided on the backplane. The light source includes a plurality of sub light sources. The light-emitting unit further comprises light reflecting structures provided between the sub light sources. The light reflecting structures are configured to reflect the light radiating thereon from the sub light sources into the light-emitting direction of the light-emitting unit. Accordingly, the invention discloses a backlight module including the light-emitting unit and a display device including the backlight module. The backlight module in the invention is not only capable of improving a Hotspot phenomenon, but also capable of preventing the light source in the light-emitting unit from directly contacting with a light guide plate.

Abstract: A light mixing element in a shape of a prism, and a cylinder of the prism of the light mixing element includes a first light-emitting inclined surface, a second light-emitting inclined surface, a bottom surface, a incident surface and a reflecting inclined surface; one side of the second light-emitting inclined surface is connected with one side of the first light-emitting inclined surface to form a top angle; the bottom surface is arranged opposite to the top angle; the incident surface is connected between one side of the bottom surface and the other side of the first light-emitting inclined surface; and the reflecting inclined surface is connected between the other side of the bottom surface and the other side of the second light-emitting inclined surface and arranged opposite to the incident surface and the first light-emitting inclined surface.

Abstract: This display device includes a display device body, a display portion arranged on the front side of the display device body, configured to display an image, a light source supplying light to the display portion, a first light guide plate arranged to be opposed to the light source, having a light incident surface including a side surface on which light emitted from the light source is incident and a light emitting surface provided on a side surface opposite to the light incident surface to emit the light incident from the light incident surface, a second light guide plate arranged to overlap with the first light guide plate, guiding the light emitted from the light emitting surface of the first light guide plate to the display portion, and a first reflective member arranged between the first light guide plate and the second light guide plate.

Abstract: A backlight module and a liquid crystal display device are provided. The backlight module at least comprises a light source assembly and a light guide plate. The light source assembly provides multiple groups of parallel incident beams having different intensity. A light incidence surface is used to receive the parallel incident beams and then refract them to be multiple groups of parallel refracted beams. The parallel refracted beams can directly arrive at a bottom surface, and be emitted out from a light-emitting surface after reflected and dispersed by the bottom surface. There forms an included angle between a normal of the light incidence surface and the parallel incident beams, and the included angle is an acute angle. The backlight module and the liquid crystal display device of the present invention can reduce the reflection times of light in the light guide plate for improving the light use efficiency.

Abstract: Provided is an illumination device that is capable of improving the utilization efficiency of light, while being lighter and thinner. This illumination device (10) is provided with: a light source (11) that emits ultraviolet light; a light guide plate (14) that guides the light from the light source; an optical member (15) placed between the light source and the light guide plate and that allows ultraviolet light emitted from the light source to pass through and that reflects visible light; and a fluorescent member (16) that is arranged between an ultraviolet light incident surface (15d) of the optical member and the light guide plate and that converts the ultraviolet light into visible light.

Abstract: This invention discloses an edge-lit LED backlight module, a liquid crystal display device and a method for fixing a reflection sheet. This backlight module comprises a backplate, a sidewall connected to the backplate, a light guide plate arranged on the backplate, a light-emitting device arranged on the backplate, and a reflection sheet arranged between the backplate and the light guide plate; wherein the light guide plate has a light-exiting top surface and a light-entering side adjacent to the light-exiting top surface, and the light-emitting device is located between the light-entering side and the sidewall. This backlight module further includes at least a first tension member and a second tension member with their both ends respectively connected to the reflection sheet and the backplate. The backlight module herein can effectively prevent the reflection sheet from warping caused by thermal expansion and further improve the optical quality of the backlight module.

Abstract: A backlight unit includes a light guide plate; a light emitting unit configured to irradiate light toward a side portion of the light guide plate, the side portion comprising an upper side part and a lower side part; and a light controller of which at least a portion is in at least one from among the upper and the lower side parts of the side portion of the light guide plate. The light controller includes a first region overlapping the light guide plate and a second region not overlapping the light guide plate, and a reflectivity of the first region is different from a reflectivity of the second region.

Abstract: The present invention provides a backlight module, which includes a backplane, a light source arranged inside the backplane, a reflector plate arranged inside the backplane, a light guide plate arranged on the reflector plate, and a mold frame mounted to the backplane. The light source is connected by an electrical wire to an external circuit. The backplane forms a carrier section that carries the electrical wire. The mold frame forms a receiving channel corresponding to the location of the electrical wire. The electrical wire is positioned between the carrier section and the receiving channel. The backlight module includes a backplane forming a carrier section and a mold frame forming a receiving channel so that an electrical wire is positioned between the carrier section and the receiving channel to prevent the problem of damage of a light source caused by mounting the electrical wire that is found in the known techniques.

Abstract: A light-emitting module comprises a light-guiding plate, a plurality of light-guiding elements and a light-emitting unit. The light-guiding plate guides the light direction and has at least an incident surface and two opposite surfaces. The light-guiding elements are disposed on one of the surfaces of the light-guiding plate, and each include a rough surface having a maximum roughness larger than zero micron and less than or equal to 20 microns. The light-emitting unit is disposed to the incident surface of the light-guiding plate. The light emitted by the light-emitting unit is applied to the light-guiding plate, and then, by the guiding of the light-guiding plate and the light-guiding elements, is outputted through one of the surfaces of the light-guiding plate in an alternate form of bright and dark zones. The invention also discloses a light-guiding plate and a display apparatus.

Abstract: A backlight unit includes a light guide plate including a plurality of light emitting areas and a light source part providing light to the light guide part. The light guide part includes a main light guide part and a sub-light guide part formed as a single piece with the main light guide part or partially overlapped with the main light guide part. A display device includes a display panel displaying an image and the backlight unit.

Abstract: Disclosed herein is a backlight device. The device includes: a light emitting element; a lens having an incident surface on which light emitted by the light emitting element is incident, and an outgoing surface which has an ability to converge the light and from which the light incident on the incident surface goes out; a light guide plate having a light incidence plane and introducing through the incidence plane the light going out from the outgoing surface, so as to perform surface light emission; and a reflective member operative to reflect a portion of the light going out from the outgoing surface of the lens, toward the incidence plane of the light guide plate.

Abstract: A backlight assembly includes a light guiding plate and a plurality of first light sources. The light guiding plate includes a light exiting surface through which light can exit, a light guiding surface positioned opposite to the light exiting surface, and a first surface extending between the light guiding surface and the light exiting surface and inclined with respect to the light guiding surface by a first angle. The first angle is an acute angle. The first light sources can generate light, and are disposed under the light guiding plate. These first light sources are disposed adjacent to a first edge connecting the first surface with the light guiding surface.

Abstract: Electronic devices may include displays. A display may include backlight components such as a light guide plate that distributes light from a light source across the display. The light source may include a plurality of light-emitting diodes mounted on a printed circuit substrate. A portion of the light guide plate may be attached to the printed circuit substrate using adhesive. The adhesive may be a supported adhesive that includes a lining of reflective material. A reflective coating such as a layer of white coverlay may be formed on the surface of the printed circuit substrate and may be configured to reflect light into the light guide plate. The reflective coating may serve as a solder mask. The printed circuit substrate may be attached to a metal display chassis using adhesive. A shim may be used to raise the height of the light source relative to the printed circuit substrate.

Abstract: The invention provides a reflective plate that includes a first reflective part having a predetermined surface roughness and a second reflective part having a surface roughness that is less than the predetermined surface roughness of the first reflective part. The invention also provides a reflective plate that is capable of supplying a liquid crystal panel with substantially uniform light.

Abstract: 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.

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: A backlight unit and a display apparatus using the same are disclosed. The backlight unit includes an optical sheet, a reflector having a reflective surface spaced apart from the optical sheet and having an inclined surface, a fixture connected to one side of the reflector, and a light source disposed to one side of the reflector.

Abstract: A linear light source includes a plurality of LED chips that are linearly arranged along a first direction, and a reflector including a first tapered sidewall sandwiching the LED chips in the first direction and a second tapered sidewall sandwiching the LED chips in a second direction intersecting with the first direction. The LED chips are surrounded by first tapered sidewall and second tapered sidewall, and the second tapered sidewall is lower than the first tapered sidewall.

Abstract: The present invention provides a backlight module, which includes a backplane, a backlight source arranged inside the backplane, a light guide plate arranged inside the backplane and corresponding to the backlight source, a plurality of positioning units arranged between the backplane and the light guide plate, a reflector plate arranged between the backplane and the light guide plate and mounted to the positioning units, and optic films arranged on the light guide plate. The positioning units each have an end fixed to the light guide plate, an opposite end fixed to the backplane, and an intermediate portion which is provided with a positioning section. The reflector plate is mounted to the positioning sections so that the light guide plate and the reflector plate form therebetween a gap. The gap helps preventing the light guide plate and the reflector plate from contacting and rubbing each other.

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: An object is to implement a narrowed picture-frame while suppressing the occurrence of light leakage and a reduction in luminance in an edge-light type backlight device. A backlight device is composed of LEDs (40); a side chassis (51) supporting a board having the LEDs (40) mounted thereon; a light guide plate (20) for allowing light emitted from the LEDs (40) to exit toward a liquid crystal panel in a planar manner; a reflection sheet (30) for allowing light traveling toward a back surface side within the light guide plate (20) to be reflected thereby; optical sheets (10) including a reflection type polarizer (11), a prism sheet (12), and a diffuser (13); and a top chassis (52) disposed on top of the optical sheets (10). Black printing (60) is provided in a part of the region of the diffuser (13).

Abstract: A light-guiding plate and a plane illumination apparatus therewith are disclosed. The plane illumination apparatus includes the light-guiding plate and at least one light-emitting source. The light-guiding plate includes a light incident surface, a first surface opposite to the light incident surface, a second surface between the light incident surface and the first surface, and a light emitting surface opposite to the second surface. The second surface is coated with diffuse reflection layer. The first surface gradually extends substantially toward the light incident surface from its one side near to the second surface to the other side near to the light emitting surface. The light-emitting source is disposed corresponding to the light incident surface for providing a light beam.

Abstract: In order to prevent the occurrence of unevenness of planar light and reduce consumption energy, a backlight unit (1) includes: a light source unit (3); a light guide plate (2) in which light from the light source (3) enters through a light receiving surface (22) and in which planar light is emitted through a light emitting surface (21); an optical sheet (4) that is arranged on the side of the light receiving surface (22) of the light guide plate (2); a first optical member (61) that is formed on a portion of the optical sheet (4) close to the light source (3) and that reflects the light; and a second optical member (62) that is formed on a portion of the optical sheet (4) close to the first optical member (6).

Abstract: A backlight module and a liquid crystal device are disclosed. The backlight module includes a plastic frame, an aluminum extrusion, and a light guiding plate. The plastic frame and the aluminum extrusion prohibit the light guiding plate from moving in an up and down direction. Wherein the light guiding plate is disposed on the aluminum extrusion. The light guiding plate includes a body, and a first position portion extends along the body towards the aluminum extrusion. The aluminum extrusion includes a position slot corresponding to the first position portion, and the first position portion closely engages with the first position slot. The backlight module and the liquid crystal device fix the light guiding plate by engaging the light guiding plate, the aluminum extrusion, and the plastic frame so that the light guiding plate is stably fixed and the light coupling is stable.

Abstract: A light emitting apparatus in which light of different colors can be irradiated depending on the locations of a light guide member used in the light emitting apparatus and in accordance with the environment of a facility or a user's demand, a light source member includes a plurality of light source members each with one or more light sources, and adjacent light source parts emitting light of different colors with each other. The light guide member includes a recess which is formed between the respective input surfaces through which the light from the corresponding light source parts is input and which has a recess side surface that reflects at least some of the light input through the input surfaces; a plurality of extension parts that respectively guide mainly the light input from the corresponding light source parts through the input surfaces; and a cutout portion formed between the extension parts.

Abstract: The invention provides a surface light source device and an edge-lit type backlight module. The surface light source device comprises: a luminant, a bottom reflector plate, a light leaking plate and a plurality of side reflector plates, wherein the bottom reflector plate and the plurality of side reflector plates form a light guide box with an upper opening, the luminant is disposed on at least one of the plurality of side reflector plates, the light leaking plate is disposed in the upper opening of the light guide box, such that light from the luminant is transformed into an exiting surface light via the light leaking plate.

Abstract: A projector includes: a light emitting device; a light modulation device adapted to modulate a light beam emitted from the light emitting device; and a projection device adapted to project the image formed by the light modulation device, wherein the light emitting device includes a light emitting element formed of a super luminescent diode, and adapted to emit light, and a base supporting the light emitting element with first and second reflecting surfaces to reflect the light emitted from the light emitting element. The light emitting element emits the light from first and second end surfaces. Directions of first and second outgoing light respectively emitted from the first and second end surfaces are opposite to each other. Directions of the first and second reflected light respectively reflected by the first and second reflecting surfaces are the same as each other.

Abstract: A display device includes a display panel. The display device further includes a light source attached to a surface of the display panel. The display device further includes a light guide overlapping the display panel.

Abstract: A low profile luminaire to be carried by a lighting fixture. The luminaire may include a light source that comprises light-emitting diodes (LEDs), a heat sink thermally coupled to and disposed diametrically outboard of the light source, a reflector in optical communication with and disposed diametrically inboard of the light source, and a light guide in optical communication with at least one of the light source and the reflector and disposed therebetween. Light emitted from the light source may be reflected by the reflector into an edge of the light guide. Light propagating through the light guide may be projected into the environment at a uniform luminance. The luminaire may be dimensioned to cover a nominally sized four-inch can light fixture and/or electrical junction box. A method aspect of the invention details steps for assembling the low profile luminaire with light guide.

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: A backlight assembly includes: a light guide; a light source at one side of the light guide and separated from the light guide; a circuit board on which the light source is mounted; and a buffer member between the light guide and the circuit board. An opening is defined in the buffer member and exposes the light source.

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: A light-emitting diode light bar includes a printed circuit board and a light-emitting diode. The printed circuit board has a protective layer, a first signal line, and a first extension line. The LED is disposed on the first signal line and the first extension line. The protective layer is formed above the first signal line and the first extension line, and has an opening that exposes a portion of the first signal line, and a portion of the extension line, such that a first exposed length of the first signal line is substantially equal to a second exposed length of the first extension line.

Abstract: A LED illumination lamp extending substantially along and about an axis, and having: a LED light source located substantially along the axis; a light diverting optical element located substantially in front of the light source, along the axis, and designed to laterally divert the light impinging substantially axially on the optical element; and an optical guide plate surrounding the optical element and the axis, and having a seat housing the light source and the optical element; the plate extending along the axis, between two opposite faces respectively defining a front light-exit surface, and a rear active surface having a number of circumferential annular projections spaced radially apart and concentric with the axis.

Abstract: A backlight device wherein LEDs which are arranged side by side at a first arrangement interval (P1) are provided to each LED unit. The LED units are mounted to a flexible board at a second arrangement interval. A light guide plate is disposed in such a manner that an end surface thereof is spaced from the LEDs by a distance (H). The light guide plate is disposed so as to satisfy the following relationship: first arrangement interval (P1)<distance (H)<second arrangement interval (P2). Specifically, the LEDs are arranged side by side in such a manner that the first arrangement interval (P1) is not less than 0.1 mm but not greater than 3 mm and the second arrangement interval (P2) is not less than 5 mm but not greater than 15 mm. The light guide plate is disposed in such a manner that the distance (H) is not less than 1 mm but not greater than 7 mm.

Abstract: Providing is an edge-illumination type backlight module, comprising a light guide bar comprising a light incident surface and a light exiting surface; a light source device for emitting a light to the light incident surface; a light guide plate comprising a light emitting surface and a light entrance surface, wherein the light emitting surface is disposed on a surface of the light guide plate, the light entrance surface is disposed at a lateral surface of the light guide plate, the light guide plate is adjacent to the light guide bar, the light exiting surface of the light guide bar faces to the light entrance surface of the light guide plate, and the light emitting surface of the light guide plate is vertical to a light emitting direction of the light source device; and an optical film disposed on the light emitting surface of the light guide plate.

Abstract: LCD backlighting systems, and particularly LCD backlighting systems used in connection with night vision systems, may be configured to achieve reduced cost, reduced volume, and other desirable outcomes by use of a dual-mode configuration. In a dual-mode configuration, certain light sources are active in both day mode and night mode operation. Night mode light sources may be IR filtered in order to prevent disruption of operation of night vision equipment.

Abstract: An LED lighting apparatus of the invention includes a substrate having a length in a first direction and a width in a second direction. LED chips are supported on the substrate along the first direction. A light guide, having a thickness in the second direction, includes an incident surface, a reflective surface and an emitting surface. The incident surface faces in a third direction perpendicular to the first and second directions for receiving light emitted from the LED chips. The reflective surface spreads in the first and third directions and reflects light from the incident surface in the second direction. The emitting surface spreads in the first and third directions and allows light from the reflective surface to exit. The substrate is supported by a case that includes side plates around the light guide and a bottom plate connecting the side plates.

Abstract: A backlight unit includes: an arrangement surface on which a plurality of light sources are arranged, and a plurality of reflection surfaces erected from a plurality of edges of the arrangement surface. The light emitted from the light sources and the light reflected from the reflection surfaces irradiate to an irradiation area surrounded by the reflection surfaces which are each inclined at an inclination angle smaller than 90 degrees with respect to the arrangement surface. At least one reflection surface includes a large inclination area inclined at a large inclination angle and a small inclination area inclined at a small inclination angle. The light source arranged close to the large inclination area is disposed closer to the outside frame of the irradiation area than the other light sources arranged close to the small inclination area in plan view from the irradiation area.

Abstract: A backlight module and a keyboard using the same are provided. The keyboard includes a keycap layer and a backlight module. The keycap layer has a plurality of key structures. The backlight module includes a light guide layer and a reflective layer. The light guide layer having a light-incident side is disposed under the keycap layer, wherein the light-incident side has a plurality of openings. The reflective layer is disposed under the light guide layer. The reflective layer has a reflective surface, a plurality of wires and a plurality of light sources. The wires and the light sources are located on the reflective surface, and the light sources respectively pass through the openings and are located at the light-incident side.

Abstract: A white reflective film for an edge light backlight improves the luminance and unevenness therein, avoids uneven close contact with, and scraping of, the light guide plate, and minimizes the crushing of convexes formed on at least one side, even in cases where the reflective film is laid directly over a corrugated chassis designed to house circuitry or the reflective film is used in combination with LEDs. The film satisfies (i) to (iii): (i) a stiffness of 2 to 10 mN·m; (ii) convexes have been formed on at least one face (A), and their maximum height is 5 to 60 ?m; (iii) the convexes contain an aromatic polyester.

Abstract: A backlight unit capable of emitting heat smoothly and a display device including the same are disclosed. The backlight unit includes a bottom cover, a light emitting module arranged in a predetermined area of the bottom cover, a reflective sheet provided on the bottom cover, the reflective sheet spaced apart a predetermined distance from the bottom cover, a plurality of first heat radiating members provided between the reflective sheet and the bottom cover, the plurality of the first heat radiating members spaced apart a predetermined distance from each other, a second heat radiating member arranged between the light emitting module and the first heat radiating members, and a projected part located in the second heat radiating member below the reflective sheet, the projected part supporting the reflective sheet to locate the reflective sheet spaced apart a predetermined distance from the first heat radiating members.

Abstract: This disclosure provides systems and methods for illumination systems with one or more reflective structures over a light guide. In one aspect, each reflective structure can have an absorber structure with a width greater than a width of the reflective structure. The absorber structure can have overhanging portions that are in parallel with and laterally protrude past one or more edges of the reflective structure, or the absorber structure can have enclosing portions that substantially enclose the reflective structure. The reflective structures can include light-turning features, such as facets, and/or conductive wires, such as touch sensor wires.

Abstract: A backlight unit capable of emitting heat smoothly and a display device including the same are disclosed. The backlight unit includes a bottom cover, a light emitting module arranged in a predetermined area of the bottom cover, a reflective sheet provided on the bottom cover, the reflective sheet spaced apart a predetermined distance from the bottom cover, a plurality of first heat radiating members provided between the reflective sheet and the bottom cover, the plurality of the first heat radiating members spaced apart a predetermined distance from each other, a second heat radiating member arranged between the light emitting module and the first heat radiating members, and a projected part located in the second heat radiating member below the reflective sheet, the projected part supporting the reflective sheet to locate the reflective sheet spaced apart a predetermined distance from the first heat radiating members.

Abstract: Disclosed is a backlight unit and a display device using the same, which includes a first reflector, a second reflector 300 and at least one light source module 100 disposed between the first and second reflectors, wherein a back surface of the first reflector comprises an inclined plane 201 and a flat surface 202, with facing the second reflector, and the inclined plane is adjacent to the light source and the flat surface is extended from an end of the inclined plane, with the inclined plane and the flat surface being collinear.

Abstract: A backlight module including a first casing, a light guiding member, a light source and a limiting structure is provided. The first casing has a top portion and a first side portion connected to the top portion. The light guiding member is located at an inner side of the first side portion and has a light incident surface and a top surface. The light source is located at the inner side of the first side portion and is disposed adjacent to the light guiding member. The light source has a light emitting surface facing the light incident surface. The limiting structure is protruded from a wall below the top portion and located above at least part of the light source and at least part of the top surface of the light guiding member.

Abstract: An oriented circular light-reflecting plate with triangular micro prisms having identical cross sections and a circular plate lamp made therefrom, wherein a plurality of annular micro prism bodies (111) are arranged on the prism surface (11) of the light-reflecting plate (1), the cross sections through the central axis are triangles, which have the same shapes, the same cross sectional areas and the same distances along the diameter direction, the apex of the triangle closest to the central axial line has the shortest distance away from the smooth surface (12) of the light-reflecting plate, and the apices of the triangles towards the periphery of the light-reflecting plate have the successively increasing distances away from the smooth surface 912) of the light-reflecting plate.