Abstract: A backlight module and a display panel device using the same are provided. The backlight module includes a light source module, an open frame, and a reflector sheet. The open frame is disposed around the light source module and has a first free-end and a second free-end. A space interval exists between the first and second free-ends. The reflector sheet is disposed on a rear side of the light source module and has a body and a sidewall. The sidewall corresponds to the space interval between the first and second free-ends and extends over the light source module. The display panel further includes a liquid crystal display panel (LCD panel) on the light source module and a front frame which is disposed on the LCD panel enclosing a lateral side of the LCD panel. The sidewall of the reflector sheet extends between the lateral side of the LCD panel and the front frame to provide insulation.

Abstract: A backlight unit for use in a liquid crystal display device is disclosed. The backlight unit which may include a reflection plate; a plurality of fluorescent tubes; and a diffusion plate. The reflection plate may include a rectangular-shaped bottom plate section, four side plate sections respectively formed upright from four sides of the bottom plate section with a skew in the direction of moving away from the bottom plate section, and an edge plate section that protrudes from a tip end of each of the side plate sections toward outside thereof.

Abstract: A backlight unit of a liquid crystal display device includes a mold frame having a receiving space for receiving a reflection sheet, a prism sheet a diffusion sheet, a plurality of light-emitting diodes, and a shielding tape for affixing the reflection sheet, the prism sheet, the plurality of light-emitting diodes and the diffusion sheet within the receiving space, wherein a first color is colored at a plurality of first colored areas at a lower surface of the shielding tape corresponding to the plurality of light-emitting diodes and a second color is colored at a remaining area of the lower surface of the shielding tape other than the plurality of first colored areas.

Abstract: The present invention provides a reflection sheet that is used together with a prismatic light guide plate for the backlight of a liquid crystal display device, wherein the reflection sheet makes it possible to create a liquid crystal display device that has high brightness as well as few bright lines, bright spots, and brightness defects (moiré), that possesses improved resistance to damage on the prismatic light guide plate and reflection sheet, and that can preserve high brightness over a long period of time; and provides a backlight in which such reflection sheet is used. In the present invention a prism layer is formed on one surface of a reflection sheet, the vertex angle of the prisms is 145° or greater and 168° or less, and the distance between the vertices of the prisms on the reflection sheet is 50 ?m or greater and 550 ?m or less.

Abstract: The present invention provides a light source apparatus less costly, capable of being reduced in size and thickness and superior in light combining performance and a display apparatus having the light source apparatus. The light source apparatus has a plurality of light sources different in emission wavelength from each other and a prism sheet having a plurality of mutually parallel fine elongated prisms on at least one surface thereof. Lights from the light sources enter the prism sheet through a light entrance surface of the prism sheet at a predetermined angle and output from an exit surface thereof as color-mixed exiting light. A bandpass mirror is disposed between each light source and the prism sheet to transmit light in a wavelength region emitted from the associated light source and to reflect light in the other wavelength regions.

Abstract: A flat screen comprises a liquid-crystal element, such as an LCD element, for representing an image. Further, a plurality of point light sources, such as LEDs, are provided. Between the point light sources and the liquid-crystal element a light-guiding element is arranged. For rendering the brightness distribution more uniform, the light-guiding element comprises at a surface thereof a plurality of diffractive surface elements arranged in cells.

Abstract: An exemplary illuminator assembly includes light emitting diode (LED) chips and reflective pyramids. The LED chips are arranged in an array and capable of emitting light. The reflective pyramids are arranged in an array complementary to the array of LED chips. Each LED chip is arranged among a plurality of the plurality of reflective pyramids, and each reflective pyramid is arranged among a plurality of the plurality of LED chips. The reflective pyramids include a plurality of reflective surfaces, and the reflective surfaces are inclined to the LED chips and thereby capable of reflecting at least some of the light beams emitted from the LED chips such that the reflected light beams propagate in directions that are closer to a direction normal to the arrays than the directions of said some of the light beams prior to their reflection.

Abstract: A liquid crystal display device includes a first substrate, a second substrate and a liquid crystal interposed between said first and second substrates. The first substrate includes a plurality of thin film transistors, an organic insulating layer, said organic insulating layer including a contact hole exposing an output of each of said thin film transistors, a plurality of first electrodes disposed on said organic insulating layer and each connected with said output, and a viewing-angle varying section between the first electrodes, the viewing-angle varying section including a curved surface of a half-cylindrical shape and protruding from the organic insulating layer. The viewing-angle varying section has a symmetrical shape, and the portions of said first electrode disposed at each side of said viewing-angle varying section asymmetrically extend onto the curved surface of said viewing-angle varying section, to thereby change the reflection factor depending on an observation angle.

Abstract: An optical sheet for a backlight is provided on a surface light source in the backlight. An optical reflection layer has a plurality of through grooves formed on a transparent substrate and arranged at a prescribed interval. The width of the through hole is narrowed from the upper surface opening to the lower surface opening. Each of the cylindrical lenses is filled within a corresponding through groove, and its surface is a cylindrical surface that covers the upper surface opening of the through groove. Light from the light source comes in only from the lower surface opening, so that the angle of incidence of light when the light reaches the cylindrical surface can be controlled, and an increased amount of light deflected toward the front surface can be emitted. Therefore, the optical sheet for a backlight can collect light from the surface light source in the front surface direction.

Abstract: A backlight device is incorporated into a liquid crystal display device so as to illuminate a liquid crystal panel from a backside. The backlight device includes a light-guiding plate emitting a light, which is incident on a side surface thereof, from a front surface, and a reflector arranged along the side surface of the light-guiding plate so as to reflect a light from a light source accommodated inside thereof and guide the light to the side surface of the light-guiding plate through an opening part. A least one minute protruding part, which protrudes in a direction parallel to the side surface of said light-guiding plate, is formed on an edge part of the opening part of the reflector facing the light-guiding plate. The side surface of the light-guiding plate is brought into contact with the protruding part of the reflector when the light-guiding plate moves toward the reflector.

Abstract: A luminance control apparatus of a liquid crystal display device (LCD) is presented. The LCD includes a liquid crystal display panel divided into areas, lamps, an arithmetic unit, and a lamp driver. Fewer lamps are present than the number of areas. The arithmetic unit scans pixels of each area, extracts a peak value of the gray level of pixels of the area, and calculates a maximum peak brightness value and an average value of the area. The lamp driver controls the brightness of the lamps in accordance with the average value and the maximum peak brightness value.

Abstract: The present invention provides a liquid crystal display module or a liquid crystal display device which can prevent the generation of display irregularities. In the liquid crystal display module which includes a liquid crystal display panel, a frame-like mold frame, alight guide plate, and a reflection sheet, the liquid crystal display panel is arranged on an upper side of the mold frame, the light guide plate and the reflection sheet are arranged on a lower side of the mold frame, the reflection sheet is adhered to the mold frame using an adhesive agent which is formed on at least two sides of the reflection sheet which face each other in an opposed manner, and a portion of one side of the reflection sheet on which the adhesive agent is arranged has a length larger than a length of a portion of another side of the reflection sheet on which the adhesive agent is arranged.

Abstract: As a shape on a cross-section vertical to a longitudinal direction (L) of the hot cathode fluorescent lamp (20a (20b)), a light source rear side reflecting plane (62) of a reflector (60) includes a mound portion (623). The mound portion (623) is defined by two recessed inclining planes and protrudes toward a hot cathode fluorescent lamp (20a (20b)).

Abstract: This invention relates to a backlight unit that prevents a wrinkle of an optical sheet, and a liquid crystal display module using the same. A backlight includes at least one light source. A light guide panel converts a light from the light source into a surface light. A housing receives the light source, and has an open part that is opened to a light incidence surface of the light guide panel and one end overlaps with at least a part of the light guide panel. A main support encompasses side and upper surfaces of the housing. Optical sheets disposed on the light guide panel, wherein the optical sheets have one ends disposed between the light guide panel and the one end of the housing.

Abstract: A backlight unit for a liquid crystal display device includes: a lamp; a light guide plate adjacent to the lamp; a reflector under the light guide plate; a lamp housing covering the lamp, the lamp housing being combined with edges of the light guide plate and the reflector; and a housing pad under the lamp housing, the housing pad overlapping an edge of the lamp housing.

Abstract: A backlight assembly includes a light guiding plate, a driving board, a light emitting chip and a flexible board. The light guiding plate has a plate shape. The driving board is disposed substantially parallel with a side surface of the light guiding plate to face the side surface of the light guiding plate. The light emitting chip is formed on a surface of the driving board to generate light toward the side surface of the light guiding plate. The flexible board has a connection wiring that provides a power source to the driving board. The driving board is disposed on the flexible board.

Abstract: The present invention relates to an optical modulating display device (200) such as a liquid crystal displaying device provided with a front-light type planar illuminating device. The above front-light type planar illuminating device allows illuminating light to propagate inside a substrate (1), and is provided with a low refraction layer (3) being lower in refractive index than the substrate (1) and being in close contact with the inner surface of the substrate (1), and with reflection structure (11) on the outer surface of the substrate (1). The optical modulating display device (200) provided with the above front-light type planar illuminating device can ensure a sufficient amount of guide light propagating inside the substrate (1) and reduce non-uniformity in display illumination. And a display apparatus mounting the above optical modulating display device (200) thereon can be reduced in thickness and weight and provide a high quality display.

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: A planar light source unit includes a metal frame retaining a light source panel provided with an light guide for inducing emission of light from a light source and a plastic frame that supports at least part of a peripheral edge of the light guide. The outer peripheral surface of the plastic frame with a fitting structure between the metal frame and the plastic frame and an outer frame portion contiguous to the support plate portion and sandwiched between the fixing means and the outer frame portion of the metal frame. A liquid crystal display panel is provided with a display region in which plural display pixels are arrayed and the planar light source unit.

Abstract: Disclosed is a liquid crystal display module which makes it possible to reduce the number of components and manufacturing processes of the liquid crystal display module and to easily replace a failed LED of a backlight unit that irradiates light onto a liquid crystal panel when the LED fails. In the liquid crystal display module, an electric signal is transferred to the liquid crystal panel and the LED through a flexible printed circuit board, and the flexible printed circuit board is electrically and physically connected to the LED by connecting a coupling pin of the LED with a socket of the flexible printed circuit board. In the case in which an LED fails, the coupling pin of the failed LED can be detached from the socket of the flexible printed circuit board, and thus the LED can easily be replaced.

Abstract: A backlight unit including a light guide plate, a linear light source disposed in the light incident side of the light guide plate, a reflective sheet disposed in the rear side of the light guide plate, and a heat spreader sheet disposed in the rear side of the reflective sheet. In this backlight unit, an edge of the heat spreader sheet is placed more inner than the light incident side surface of the light guide plate in the vicinity of an electrode portion of the linear light source. Furthermore another edge of the heat spreader sheet is substantially aligned with an corresponding side surface other than the incident side surface of the light guide plate.

Abstract: A backlight module is provided. The backlight module comprises a light source, a reflection panel, a back bezel, and an upper filtering apparatus. The reflection panel has a first upper portion, which is essentially disposed at an outer side of the light source, and is used to reflect lights projecting from the light source. The back bezel has a second upper portion which is essentially disposed at an outer side of the reflection panel. At least one of the first upper portion and the second upper portion forms an upper opening. The filtering apparatus covers the openings. The filtering apparatus is capable of changing the distribution of the temperature of the light source to allow more efficient lamp activity. As a result, luminance is increased and lamp life extended.

Abstract: A light source unit includes a substrate, a plurality of light emitting elements mounted on the substrate, a first inner wiring portion formed on the substrate and connected to the plurality of light emitting elements, and a second inner wiring portion formed on the substrate insulated from the first inner wiring portion. Two such light source units may be included in a backlight unit having a plurality of light emitting elements. A receiving member accommodates the first light source unit and the second light source unit, and a length of wires arranged along inside edges of the receiving member is reduced.

Abstract: The invention is directed to a higher contrast in a display device having a lighting device as a front light. A lighting portion is attached to a reflective liquid crystal display portion. A first transparent substrate and a second transparent substrate made of a glass substrate etc. are attached to each other with a sealing layer coated on those peripheral portions therebetween. The back surface of the first transparent substrate is attached to the reflective liquid crystal display portion, and an organic EL element is formed on the front surface of the first transparent substrate. The organic EL element is sealed in a space surrounded by the first transparent substrate, the second transparent substrate, and the sealing layer. The organic EL element is formed in a region corresponding to a pixel region of the reflective liquid crystal display portion. A desiccant layer is formed on the front surface of the second transparent substrate.

Abstract: An apparatus, system, and method for an optical assembly providing illumination to subpixels of a pixel in a manner to complement characteristics of the subpixels are disclosed herein.

Abstract: A backlight device, which uses solid-state light emitting elements capable of emitting lights of three colors, consisting of red, green and blue, can exhibit an enhanced light utilizing efficiency, and can generate light of high uniformity in brightness and chromaticity in a display device which can obtain a display image of high brightness with a rapid response speed. The backlight device includes a reflector which has a light reflection surface, a plurality of light transmitting cylindrical light guide bodies which are mounted on the light reflection surface of the reflector in a uniformly distributed manner, and light emitting diodes capable of emitting lights of at least three colors which are mounted inside each light guide body. By performing color mixing every light guide block, it is possible to obtain a white light of high chromaticity which has a high luminous flux distribution.

Abstract: A flat panel display having an LCD panel, a light source to emit light, and a reflection plate including a reflection part to reflect the light emitted from the light source and a light guide part to guide the light emitted from the light source toward the LCD panel, which are integrally formed with each other. The reflection plate may be a double injection molded object in which the reflection part and the light guide part are integrally formed.

Abstract: A liquid crystal display device is provided. The LCD device includes a top case, an inverter and a bracket. The top case surrounds a periphery of a liquid crystal display panel which displays a picture. The inverter supplies a high voltage AC power to a lamp which projects a light to the liquid crystal display panel. The bracket fastens to the top case and includes at least two fastening parts for insertion of opposite ends of the inverter, thereby reducing fabrication times for devices implementing the present invention and improving productivity.

Abstract: A backlight for a display includes a plurality of illumination modules, each illumination module including a light source and a reflective member. A portion of the reflective member is disposed over the light source. A liquid crystal display panel is disposed over the plurality of illumination modules. The reflective member is configured such that a majority of light from the light source is directed parallel to the liquid crystal display panel, to provide uniform illumination of the liquid crystal display panel. In some embodiments, the light source is at least one semiconductor light emitting diode.

Abstract: A light-emitting apparatus, comprising at least one LED element, and at least one liquid crystal lens disposed to face the LED element and positioned at a distance from the LED element, a focal length of light, broadening and narrowing directions of light, and changing the illuminating area of light being adjustable by applying a voltage to the at least one liquid crystal lens and a light-emitting apparatus, further comprising at least one lens placed on the liquid crystal lens.

Abstract: A backlight module, a liquid crystal display using the backlight module, and a manufacturing method thereof are provided. The backlight module includes a bottom plate, a plurality of light source sets and at least one partition wall. A plurality of lighting areas is formed on the bottom plate and light source sets are disposed on the lighting areas, respectively. The partition wall is disposed on the bottom plate and between each two adjacent lighting areas to fully or partially block/reflect the light emitted from the lighting areas. The partition wall includes a first light-penetrable wall and a light reflective layer formed on a wall surface of first light-penetrable wall. The light reflective layer is erected on the bottom plate through the support provided by the first light-penetrable wall and its wall surface.

Abstract: A backlight assembly, which can provide enhanced light emitting efficiency, and a display device, are provided. The backlight assembly includes a light generating unit comprising a substrate and a point light source connected to the substrate, and a receiving container positioned to receive light from the light generating unit, the receiving container comprising an embossing that corresponds to the point light source.

Abstract: A backlight device includes a light guiding plate disposed on a drive substrate directly attached with a light source to confront the light source to guide the light emitted from the light source into the light guiding plate; and a diffusion sheet and a prism sheet superimposed on the light guiding plate, and arranged to refract the light guided into the light guiding plate, and to emit the light from a front surface of the prism sheet. The prism sheet extends toward the light source, and covering above the gap between the light source and the light guiding plate.

Abstract: A light source device includes: at least four rod-shaped lamps; an attachment plate to which the at least four lamps are attached substantially parallel to one another in a condition where the pitches between the lamps are different from one another; and a plurality of lamp clips each having two holding portions holding adjoining two lamps at middle parts thereof. The separation distance between the two holding portions of a first lamp clip holding two lamps and the separation distance between the two holding portions of a second lamp clip holding two lamps adjoining the two lamps are substantially the same.

Abstract: A large liquid crystal display (100) comprises a light guide plate (3) arranged on the back side of a liquid crystal panel (1). The front surface of the light guide plate (3) is flat, while the back surface thereof is concave. The upper and lower end faces of the light guide plate (3) respectively facing hot cathode fluorescent lamps (2a, 2b) have a convex shape projecting toward the respective lamps. White light from the fluorescent lamps is incident on the upper and lower end faces of the light guide plate directly or by being reflected by reflectors (4a, 4b), and propagates within the light guide plate while being reflected by the front and back surfaces of the light guide plate. At the front surface of the light guide plate, a part of the white light is directed toward the back side of the liquid crystal panel (1) by a light guide portion (5).

Abstract: A light source structure of a backlight module includes a casing, a heat sink, a plurality of light source generators, a first reflecting element and a second reflecting element. If a light emitting component of the light source generator is lit, a spot light source of the light emitting component is passed through an optical lens in a light pipe and converted into a linear light source to be projected onto an oblique surface of the first reflecting element. The oblique surface converts the linear light source into a planar light source to be projected from an opening of a casing to an oblique surface of the second reflecting element. The oblique surface of the second reflecting element guides the planar light source into the light guide plate, such that the light in the light guide plate is diffused uniformly to provide sufficient brightness to the light guide plate.

Abstract: A display includes a liquid crystal display panel, an optical cavity producing substantially collimated light and a birefringent reflective polarizer.

Abstract: A backlight module for a display includes a light source, a lens unit, a reflective unit and a prism. The light source provides a light beam. The light beam passes through the lens unit to be expanded, then transmits to the reflective unit and reflected to the prism. The light source may be a laser source.

Abstract: A liquid crystal display module includes a backlight assembly having a lamp, a lamp housing surrounding the lamp and having an open portion along a first side, a light guide plate disposed adjacent to the open portion of the lamp housing, and a plurality of optical sheets disposed on the light guide plate, edge portions of the plurality of optical sheets are disposed spaced apart from the light guide plate by interposing a top portion of the lamp housing between a periphery of the light guide plate and the edge portions of the plurality of optical sheet, a liquid crystal panel disposed over the plurality of optical sheets, a main support disposed over the lamp housing and accommodating the liquid crystal panel, a top case surrounding edge portions of the liquid crystal panel, and a bottom case supporting and accommodating the backlight assembly.

Abstract: A polarizer includes a first prism plate having a plurality of first micro-prisms; a polarizing film formed on surfaces of the first micro-prisms; and a second prism plate having a plurality of second micro-prisms, the micro-prisms of the first prism plate and the micro-prisms of the second prism plate meshed with each other and integrated the polarizing film therebetween, the polarizing film being in direct contact with the first prism plate and the second prism plate. Furthermore, a method for manufacturing the polarizer and a backlight module using the polarizer is also provided.

Abstract: A manufacturing process for enhancing a light reflective rate in a reflective type display device is provided. The manufacturing process comprises steps of: forming a first conductive layer and a first dielectric layer over a substrate; etching the first dielectric layer; polishing the etched first dielectric layer; forming a second conductive layer over the substrate; and patterning the second conductive layer to form a concave mirror on the surface of the second conductive layer.

Abstract: A display module has a back-lit liquid crystal cell and is used in particular in an operating panel of a large domestic appliance. A particularly inexpensive structure is afforded in which the height-wise dimension of the module is affected by bracing a frame that mounts the liquid crystal cell and a light-guide panel under it against a circuit carrier whose surface on which the light-guide panel rests is in the form of a reflector surface. The circuit carrier has integrated conductor tracks and a receiving device formed therein for the light-guide panel. The frame can be fitted over the sandwich structure of the light-guide panel and the liquid crystal cell. Fixing as between the frame and the circuit carrier is effected by resiliently latching barb hook members, and with through-engagement of positioning studs or pillars. The free ends of which are subjected to hot peening for fixing the position thereof.

Abstract: A backlight unit suitable to prevent color separation phenomenon of LED lamps is disclosed. The backlight unit includes a bottom cover, a printed circuit board attached to an inner upper surface of the bottom cover, a plurality of LED lamps mounted on an upper surface of the printed circuit board to extend in a direction, and a reflecting plate having a plurality of holes to expose light emitting portions of the LED lamps, respectively, the holes having a tapered side section.

Abstract: A color-fliterless liquid crystal display device includes a plurality of pixel units, each pixel unit includes a first sub-pixel and a second sub-pixel. The liquid crystal display device includes a plurality of light sources, each for emitting light having various wavelength ranges. A guide plate contains a first reflective surface and a second reflective surface for guiding light having various wavelength ranges toward the first and second sub-pixels. Accordingly, various gray levels shown by each pixel unit are combined by the two sub-pixels based on the light having various wavelength ranges.

Abstract: A first optical-path changing layer is provided, on a front-face side of a rear-face side transparent substrate including a light source on one side face thereof. The first optical-path changing layer has a refractive index substantially equal to that of the transparent substrate, and includes predetermined protrusions and predetermined depressions. Further, a low refractive-index layer is provided on a front-face side of the first optical-path changing layer. The low refractive-index layer is in contact with the protrusions and the depressions of the first optical-path changing layer, and has a smaller refractive index than the refractive index of the first optical-path changing layer. Further, a second optical-path changing layer is provided on a rear-face side of the rear-face side transparent substrate. The second optical-path changing layer includes predetermined protrusions and predetermined depressions.

Abstract: Disclosed are a backlight unit and a liquid crystal display device having the same. A supporting section is formed with a reflector, which is used for a direct type backlight unit, to support optical sheets and guide light, so that the assembling process is simplified and the manufacturing cost is reduced.

Abstract: A liquid crystal module includes: a first support part for receiving and affixing ends of a plurality of lamps; an optical plate disposed above an upper surface of the first support part; a second support part for retaining the optical plate and having a lower surface above the optical plate, wherein the upper surface of the first support part or the lower surface of the second support part has a recessed portion contacting the optical plate such that a gap is formed between the optical plate, and one of the upper surface of the first support part and the lower surface of the second support part.

Abstract: An optical adjusting member according to the invention includes a base member having optical transparency and a plurality of linear members provided on the base member and having optical transparency. A section of the linear member orthogonal to the lengthwise direction of the linear member includes a triangular first sectional part defined by first to third sides and an approximately triangular second sectional part. The second sectional part has a smaller area than that of the first sectional part and defined by fourth to sixth sides. The first side of the first sectional part is in contact with the surface of the base member. The second sectional part is formed on the second side of the first sectional part, and the fourth side of the second sectional part is in contact with the second side of the first sectional part.

Abstract: To compensate for uneven brightness in the longitudinal direction of fluorescent lamps of a backlight unit and achieve a display screen with an even brightness, a reflection unit of the backlight unit, the fluorescent tube surface of the fluorescent lamps or a diffusion unit is used to either reduce the reflectance, transmittance, or radiation brightness of the high-voltage side of the fluorescent lamps or increase the reflectance, transmittance, or radiation brightness of the low-voltage side thereof so as to compensate for uneven brightness of the illumination light and thereby ensure an even brightness. For example, dot pattern regions D1, D2 and D3, i.e., the regions whose density increases in stages, are imparted to the portion of a reflection layer 13 of the backlight unit with a relatively high brightness.

Abstract: A method of fabricating a light-reflector to be used in a light-reflection type or half-transmission type liquid crystal display device, includes (a) forming at least one organic film pattern, the organic film pattern being in the form of one of an island and a mesh, (b) exposing the organic film pattern to a steam atmosphere to melt and deform the organic film pattern such that the organic film pattern has a wavy surface, and (c) covering the organic film pattern with a light-reflecting electrode.