Abstract: A LGP plate-to-plate manufacturing includes the steps of: preparing an optical substrate with a first surface and a second surface; mechanically extruding a first integrated microstructure on the first surface of the optical substrate; coating an optical layer on the first or second surface of the optical substrate; and curing the optical layer to directly form a second microstructure on the first or second surface of the optical substrate; wherein the first integrated microstructure and the second microstructure are separately formed at a time to provide a light guide plate structure. In an embodiment, an additional optical layer is provided on the optical substrate.

Abstract: A flexible translucent sheet is folded to have portions of its bounding edge closely situated in overlapping relationship, and these overlapping portions are illuminated by a light source. The illumination is transmitted through the interior of the sheet to any adjacent unfolded area of the sheet, which may bear emission areas which are treated so that the light emits from the sheet at these areas. Preferred versions of the invention have a series of legs cut into one edge of the sheet, and the legs are then bundled in stacked relationship, with a light source providing light input into the bundle.

Abstract: 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.

Abstract: Disclosed are a display device and a backlight unit. The display device comprises a flexible light guide plate, a light source disposed at one side of the light guide plate, and a support member disposed in opposition to the light guide plate and the light source to support the light guide plate. The support member allows the light source and the light guide plate to have constant interval therebetween, and prevents the light source and the light guide plate from being tilted each other. The display device and the backlight unit ensure improved brightness and brightness uniformity.

Abstract: The invention relates to a lighting and/or signaling module comprising a support, a light guide arranged in an enclosure of said support and a mask arranged on the support and extending in front of the light guide. The light guide comprises a longitudinal rib intended to collaborate by engaging with a series of hooks belonging to the support. The mask is intended to mask the mounting zones of the light guide. It comprises one or more windows intended to let through the rays of light emitted transversally by the light guide. The rib extends continuously over essentially the entire length of each of the windows. The rib allows simple, rapid and reliable attachment of the light guide to its support. The continuity of the rib among each of the windows means that the creation of any visible non-uniformity through said windows is avoided.

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: 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.

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 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: A mobile terminal is disclosed, by which the feel of manipulation of a mobile terminal keypad is enhanced and by which brightness deviation of keypad illumination is minimized. The present invention includes at least one or more light sources, a keypad having a plurality of manipulating buttons, each having a button protrusion provided to a bottom of the corresponding manipulating button, a light guide film configured to have light provided by the at least one light source enter a lateral side thereof, the light guide film having a plurality of insertion holes configured to have the button protrusions pass through, respectively, and a printed circuit board having a dome switch pressurized by the button protrusion of the keypad and an electrode part selectively coming contact with the dome switch, wherein a width of at least one of the insertion holes provided to the light guide film is different from a length thereof.

Abstract: An integrated illumination apparatus includes a light injection portion having a first end for receiving light from a light source. The light injection portion includes material that supports propagation of said light along the length of the light injection portion. Turning microstructure is disposed on a first side of the light injection. The turning microstructure is configured to turn at least a substantial portion of light incident on the first side and to direct the portion of the light out a second opposite side of the light injection portion. A slit is disposed along the length of the light injection portion. The slit forms an optical interface on the second opposite side of the light injection portion that provides total internal reflection for light propagating along the length of the light injection portion to be guided therein. The optical interface further transmits light turned by said turning microstructure.

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 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.

Abstract: A backlight module includes a light source, a light guide plate and at least one optical film. The light source has a plurality of light emitting devices. The light guide plate includes a light entrance portion, a main body portion and at least one positioning structure. The light entrance portion has a top surface and a light entrance surface. The light source is disposed corresponding to the light entrance surface. The top surface is adjacently connected to the light entrance surface. The main body is connected to the light entrance portion and has a first light extraction surface connecting the top surface. The positioning structure is disposed on the top surface and corresponding to an interval between two adjacent light emitting devices, and has an accommodating space. The optical film is disposed above the light guide plate and has at least one protruding portion disposed in the accommodating space.

Abstract: A light guide for interfacing between a light source having a light emitting surface with a first shape and a light receiver with a light receiving surface of a second shape. The light guide has a light emitting end having a first shape of substantially the same size as the first shape of the light emitting surface. A light receiving end has a second shape of substantially the same size as the second shape of the light receiving surface. A free form body between the light emitting end and the light receiving end causes a transition between the first and second shape.

Abstract: A backlight module includes a back bezel, a light guide plate, a plurality of optical films, and a clamping device. The light guide plate is disposed in an area enclosed by a periphery structure of the back bezel, and the optical films are disposed on the light guide plate. The clamping device includes a supporting element, a clamping piece, and a cushion element. The supporting element protrudes from the back bezel. The clamping piece is disposed on the supporting element and extends from the back bezel to the optical films. The cushion element is disposed between the clamping piece and the optical films.

Abstract: In a method of local dimming of a light source including a plurality of light-emitting blocks, a dimming level of each light-emitting block of the plurality of light-emitting blocks is determined. A compensation dimming level of a predetermined light-emitting block is calculated based on dimming levels of peripheral light-emitting blocks disposed around a periphery of the predetermined light-emitting block. The predetermined light-emitting block is driven based on the compensation dimming level.

Abstract: A door sill lighting for a motor vehicle is described. The door sill lighting comprises an outer sill trim having a plurality of seamlessly interconnected layers. A partial region of an outer layer is transparent and cooperates with at least one light source. The partial region of the outer layer comprises edge sides and an optical fiber layer. The optical fiber layer has distributed light-scattering nanoparticles in its volume. Light from the light source can be coupled into an edge side of the optical fiber layer.

Abstract: An illumination device comprises a plurality of light sources, light sequencing circuitry coupled to the light sources, a light guide structure for directing light from the plurality of light sources over a surface of a display screen to be illuminated, and a user interface for providing control input to the light sequencing circuitry. The light sequencing circuitry comprises a logic state machine responsive to the control input to select one of a plurality of available sequencing modes for the plurality of light sources, a code generator operative to generate output signals controlling respective ones of the light sources responsive to the selected one of the sequencing modes, and timing circuitry for defining timing intervals for processing of the control input by the logic state machine to determine the selected one of the sequencing modes and for generation of the corresponding output signals by the code generator.

Abstract: The invention relates to the field of LCDs, and more particularly to a backlight module and an LCD device. The backlight module includes a backplane, and a light source; the light source is arranged on the backplane, and the outer side surface of the backplane near the light source is provided with a heat pipe. The heat pipe is arranged on the outer side surface of the backplane of the backlight module of the invention near the light source; because light source is a heat emitting source, the nearer the heat pipe to the light source is, the higher the temperature is. By using the high-efficiency heat transfer mechanism of the heat pipe, the heat of the backplane is quickly dissipated outside the backplane, and the temperature inside the backplane, in particular the temperature near the light source is indirectly reduced; thus, the service life of the backlight module and the LCD device is extended.

Abstract: The invention relates to a cap (1) for a display and/or control element. Said cap (1) comprises a cap member (3) for covering a light source (7) and optionally also actuating a switch of an associated control element. A luminous area or projection area is embodied in the cap member (3) in such a way that a symbol represented on or through the luminous area or projection area becomes visible on an operator's side of the display and/or control element by irradiating the symbol by means of a light source (7). The luminous area or projection area encompasses a light-permeable metal coating (2) which is preferably applied using a PVD process. The cap is characterized in that the metal coating (2) has a three-dimensional contour (2a, 2b) for representing the symbol. The invention further relates to an associated production method, a display or control element comprising said cap, and a use.

Abstract: A light module for providing an array of quantum dot disks and methods for manufacturing the same are described herein. The light module may include at least one light emitting diode (LED) light source in an edge lighting configuration emitting light into a waveguide, such as a frustrated total internal reflection (FTIR) waveguide. At least a portion of the waveguide includes a nanophosphor material, such as a quantum dot disk. Moreover, the waveguide includes at least one aperture on a surface of the waveguide optically aligned with the nanophosphor material. The light module further includes a lens optically aligned with the aperture of the waveguide, such as an over-optic. In alternative embodiments of the invention, the light module may includes at least one LED light source optically aligned with a quantum dot disk remotely located from the LED light source and optically aligned with an over-optic lens.

Abstract: A spread illuminating apparatus includes a point light source; a light guiding plate having a light incident face on which the point light source is mounted, and a light output face. The light incident face has light incident prisms diffusing light emitted from the point light source into a planar space substantially parallel with the light output face. The light incident prisms include: a first prism portion including a plurality of first prisms convex relative to the light incident face; and a second prism portion including a second prism convex relative to the light incident face, the second prism portion being placed next to the first prism portion in a longitudinal direction of the light incident face. The first prism partially overlaps another first prism adjacent thereto, and the vertex of each first prism is set higher than the vertex of the second prism relative to the light incident face.

Abstract: A light guide plate comprising an incidence surface, a lower surface, an upper surface and an opposite surface which is opposite to the incidence surface, wherein the length of the upper surface is less than the length of the lower surface, and an acute angle is formed between the opposite surface and the direction of elongation line of the upper surface.

Abstract: Provided are a backlight unit and a liquid crystal display apparatus including the same. The backlight unit comprises: a housing comprising an opening part; a module substrate in the opening part of the housing; a light emitting diode on the module substrate; and a reflection sheet in which the light emitting diode inserted thereto.

Abstract: Gaming devices, gaming systems, methods of conducting a wagering game, and computer programs for initiating a wagering game are presented herein. A gaming device is presented that includes a wager input device for receiving wagers from players to play a wagering game, and a display for displaying outcomes of the wagering game. The gaming device also includes a multi-layer composite lighting assembly with a first light-emitting layer, a second light-emitting layer, and a spacer. The first light-emitting layer emits light of a first color in a first direction, whereas the second light-emitting layer emits light of a second color in a second direction. The spacer, which is interposed between the first and second light-emitting layers, diffuses and focuses light emitted by the second light-emitting layer through the light emitted by the first light-emitting layer to thereby create a three-dimensional simulation of a component of the wagering game.

Abstract: An illumination device is provided including a light emitter; and a panel. The panel includes a recess configured to accept an optically transparent sealant that is illuminated by light from the light emitter. Moreover, the panel includes a hole in the recess that is sealed by the optically transparent sealant.

Abstract: The present invention provides a backlight module and a display apparatus. The backlight module comprises at least two light sources; a plurality of light guide units corresponding to the light sources and disposed at one side thereof; and at least one reflective layer formed between the two adjacent light sources, wherein a portion of the reflective layer extends between two of the light guide units corresponding to the two light sources. The present invention can enhance the number of the locally dimmed regions and improve the light interference problem between the different lighting regions.

Abstract: Disclosed is a light source device which is made compact while suppressing increase in non-uniformity of brightness caused by existence of a non-light emitting portion between a plurality of light sources. A light source device is characterized in that a plurality of light diffusers have a first light diffuser located in front of a first light source in the light exit direction closely thereto, and a second light diffuser located in front of a second light source in the light exit direction closely thereto. The first light diffuser includes a first light absorbing material which absorbs visible light emitted from the first light source more easily than visible light emitted from the second light source, and the second light diffuser includes a second light absorbing material which absorbs visible light emitted from the second light source more easily than visible light emitted from the first light source.

Abstract: An edge type light source module has at least one middle light emitting region and edge light emitting region and includes a first edge type light emitting device and a second edge type light emitting device. If the middle light emitting region is a lighting region having a brightness value L1, the edge light emitting region adjacent to the lighting region is a light leakage region. The light leakage region has a predetermined brightness value L2, and a compensation brightness value L2? of the light leakage region satisfies L2?=L2?(L1*k1*R1), 0?k1?1, and 20%?R1?60%. If the edge light emitting region is a lighting region having a brightness value L3, the middle light emitting region adjacent to the lighting region is a light leakage region. The light leakage region has a predetermined brightness value L4, and a compensation brightness value L4? of the light leakage region satisfies L4?=L4?(L3*k2*R2), 0?k2?1, and 10%?R2?50%.

Abstract: The present invention provides a display device comprising a display panel and a conductive pattern, in which the conductive pattern comprises an irregular pattern.

Abstract: A driving unit of a display panel includes a control part, a gate driving part, a grayscale compensating part, and a data driving part. The control part provides a control signal and a grayscale signal. The gate driving part provides a gate signal to the display panel. The display panel is divided into a plurality of blocks according to a distance from a light source to each of the blocks. The grayscale compensating part outputs a compensating signal of an n-th frame using look-up tables, and the look-up tables respectively correspond to the blocks of the display panel. The data driving part converts the compensating signal of the n-th frame into a grayscale voltage and provides the grayscale voltage to the display panel. Accordingly, the driving unit of the display panel may improve a response speed of liquid crystals and display quality.

Abstract: A light guide plate includes an incident surface, an emergent surface substantially perpendicular to the incident surface, a bottom surface opposite to the emergent surface, and a number of micro-dots positioned on the bottom surface. The micro-dots have similar shape and size. A density of the micro-dots gradually increases from a near-end to a far-end of the incident surface.

Abstract: A luminescent display has a plurality of individual discreet phosphor elements (33) on a glass plate separated from one another, filler material (45) between the phosphor elements and reflective film over the individual phosphor elements (33). The filler material (45) can be white and contact the sides of the phosphor elements (33). The filler material (45) can have a peak height that is at least half of the height of the individual phosphor elements (33) between which the filler material (45) lies.

Abstract: A backlight device, where expense reduction is promoted by standardizing lengths of LED boards to one type. The backlight device includes: a light guide plate; and LED boards which are arranged facing end surfaces of side surface portions of the light guide plate and on which LEDs introducing light to the light guide plate are mounted, wherein lengths of long sides of the LED boards arranged on long sides facing end surfaces in a long side direction of the light guide plate and lengths of long sides of the LED boards arranged on short sides facing end surfaces in a short side direction of the light guide plate are all the same.

Abstract: LED backlight module structure for increasing process yield comprises a housing, a copper circuit layer, a plurality of LED chips, a plurality of solder paste overflow prevention members, a light guide plate, and a bottom reflector. In the present invention, it mainly disposed the solder paste overflow prevention members between the LED chips and the copper circuit layer, therefore, the solder paste overflow phenomenon is prevented when using a pressing fixture to assist in executing the welding process of LED chips, and it ensures that the soldering pins of the LED chips would not electrically connect to each other due to the solder paste overflow phenomenon. Moreover, a position limiting band can be further disposed on the copper circuit layer for receiving and fixing the LED chips, in addition, the position limiting band is helpful to the LED chips in heat dissipation when the LED chips emit light.

Abstract: A planar light emitting device provided with a light source; a sheet-like light guide that guides light from the light source in a planar direction, and has a plurality of light emitting regions, and a through slit formed between the light emitting regions to penetrate the light guide in a thickness direction; a switch sheet arranged so as to face one of the front face and the rear face of the light guide; and a light-blocking layer that has a flange portion that covers an opening edge portion of the through slit, a main body portion that covers at least one of the mutually facing inner wall surfaces of the through slit so as to form a space in the interior of the through slit and that continuous with the flange portion, and a bottom portion that is extended from a lower portion of the main body portion.

Abstract: An end of a light guide plate used for a liquid crystal display and a lighting unit, which is positioned on one side in a first direction, is provided with a depressed portion, and another end of the light guide plate, which is positioned on the other side in the first direction, is provided with a projecting portion. Using the depressed portion and the projecting portion, the light guide plate is placed in a predetermined position of a frame body. The depressed portion and the projecting portion are formed at positions opposite each other in the first direction, and the projecting portion is equal to or smaller than the depressed portion in size.

Abstract: The present invention relates to an optical film having improved optical performance and to a backlight unit comprising the same. More particularly, the present invention relates to a microlens array (MLA) sheet which comprises a base unit and a lens unit formed on one side of the base unit, wherein the lens unit consists of a plurality of conical lenses. Existing hemispherical microlens array sheets have limitations in terms of improving luminance, and therefore cannot replace prism sheets in high luminance products. However, the microlens array sheet consisting of conical lenses of the present invention can improve both luminance and viewing angle characteristics.

Abstract: A diffusion sheet includes a light-transmissive substrate, a plurality of structures, and a flat portion. The light-transmissive substrate includes a first main surface, and a second main surface. The plurality of structures have convex shapes and are randomly formed on the first main surface. The flat portion is formed among the plurality of structures on the first main surface and has a surface roughness (Ra) of no less than 0.9 ?m.

Abstract: The present disclosure relates to a liquid crystal display device including a field programmable gate array (or “FPGA”) and a method for initializing the FPGA in stable.

Abstract: In one embodiment, a light emitting device comprises an array of legs extending from a body of film with the bounding edges of the legs stacked, a first light source emitting light of a first color and a second light source emitting light of a second color into the stacked bounding edges where the light emitting region defined within the body is configured to extract light of a third color. In another embodiment, a light emitting device comprises three light sources positioned to direct light into a stacked array of bounding edges. In one embodiment, a method of generating light of adjustable color exiting a surface of a film is disclosed.

Abstract: Lighting system for a data display device (56), said lighting system including a light guide (30) into which the light produced by a light source (38) is injected, said lighting system being characterized in that the light guide (30) includes a plane light injection and collimation zone (32) in the form of a parabola, said parabola including two branches (48a, 48b) connected to each other via an apex (40), the light source (38) being arranged opposite the apex (40), the branches (48a, 48b) of the parabola which delimit the contour of the plane injection and collimation zone (32) being extended by a plane extraction zone (36) for the light propagating inside the guide (30), said extraction zone (36) having a rectangular section and being provided with light extractors (54).

Abstract: The present invention is related to a method, system and apparatus, in particular, a lighting system and method of controlling the lighting system, comprising a computer readable medium and a programmable device capable of controlling and manipulating individually addressable lights to realize a visual display at a pixel level.

Abstract: The present disclosure relates to a keypad, wherein the keypad includes a light guide pad, a light source allowing light to be incident on the light guide pad, a sensor detecting quantity of light having passed the light guide pad, and a light quantity changer changing the quantity of light having passed the light guide pad.

Abstract: In a machine-implemented method of local dimming a light source of a light source block for driving the light source block to provide a plurality of image regions with light, duty ratios of a first light source and a second light source adjacent to the first light source are initially determined by using a first target luminance value of a first image region closest to the first light source and a second target luminance value of a second image region closest to the second light source. The initially determined duty ratios are compensated by using a target luminance value of a remaining image region excluding the first and second image regions among the image regions receiving the light generated from the first and second first light sources. The first and second first light sources are driven by using the compensated duty ratios.

Abstract: A light source apparatus include a light guide plate, a plurality of optical sheets and a frame, wherein one of the optical sheets is a prism sheet having a plurality of prisms on one surface and one or more integrally formed dark part suppressing projecting pieces engaging the frame. A pair of dark part suppressing sides adjoin the dark part suppressing projecting piece and form a first angle equal to or smaller than a dark part suppressing angle. Second angles making a pair of angles formed with a straight line and each of dark part suppressing sides are equal to or smaller than half of the dark part suppressing angle. The straight line passes through a region formed between the pair of dark part suppressing sides, passes through an intersection point of the pair of dark part suppressing sides and is parallel or perpendicular to ridge lines of the prisms.

Abstract: Disclosed are a display device and a front cover thereof. The display device includes a display module to form an image, a front cover to cover a rim of a front surface of the display module, a keypad display provided at the front cover, at least one light emitting unit to emit light to the keypad display disposed between the display module and the front cover, and at least one light guide channel provided at the keypad display, the light guide channel having a cross-sectional area decreasing away from the light emitting unit.

Abstract: A liquid crystal display (LCD) device comprises: an LC panel; a light source for supplying light to the LC panel; an optical sheet for converting light from the light source and supplying the converted light to the LC panel; an optical sheet supporting unit including a bar-shaped body portion, a supporting portion upwardly protruding from the body portion and supporting the optical sheet, a first fixing portion downwardly protruding from the body portion, formed in a single bending process, and having a first stopper at the end thereof, and a second stopper downwardly protruding from the body portion; and a lower cover having a first coupling hole to couple a part of the first fixing portion and the second stopper, and having a second coupling hole to couple the first stopper of the first fixing portion, for accommodating the light source and the optical sheet supporting unit therein.

Abstract: An exemplary embodiment of the present invention discloses a backlight unit with a plurality of light-emitting blocks and a light source driving section. The plurality of light-emitting blocks are arranged in a matrix shape along first and second directions different from each other. Each of the light-emitting blocks includes a light source unit having at least one light-emitting chip to emit light, and a light guiding unit to guide the light. The light source driving section controls the light source unit of the light-emitting blocks to drive the light source unit. Therefore, a thickness of the backlight unit may be reduced.