Abstract: A display system includes an illumination unit in which a predetermined light spectrum can be produced with the illumination unit, the average light intensity of which light spectrum can be reduced or increased over the wavelength range of 420 nm to 500 nm relative to the average light intensity above and below this wavelength range such that the predetermined light spectrum is greater relative to a light spectrum produced without this reduction or increase.

Abstract: The present invention discloses a backlight module and a liquid crystal display (LCD) using the same, which can achieve local dimming. The backlight module includes a light guide plate (LGP), which has a groove formed on a bottom. A cross-section of the groove can be arc-shaped. The backlight module further has a plurality of light sources disposed under the LGP at positions corresponding to the groove. The light sources can be two LED light bars. Light emitted from the light bars enters into the LGP and radiates from the LGP. The present invention does not require so many light sources, and thereby power consumption is reduced. The light sources are disposed under the LGP, so that heat can be dissipated through a back plate of the LCD.

Abstract: A small-size and light-weight backlight system and a planar display device has a structure such that luminance unevenness and chromaticity unevenness in the vicinity of the incident light portion of a light guide plate are not noticeable. The back light system includes a light guide plate arranged to guide the light from a light source and emit the light in a planar direction. The light source includes a linear light source body arranged in the vicinity of the side edge of the light guide plate. The linear light source body includes a linear body in which a plurality of light emitting elements are embedded in the longitudinal direction. A light direction change sheet is arranged on the light emission surface of the light guide plate. The light direction change sheet has a plurality of protruding stripes arranged substantially parallel to the longitudinal direction of the linear light source body formed on the surface opposing to the light guide plate.

Abstract: An optical film is applied to a side-emitting backlight module. The side-emitting backlight module has a light guide plate for guiding a chief light beam. The light guide plate has a light emitting surface to define a normal direction thereof. The optical film includes a lower prism structure, an intermedium layer, and an upper prism structure. The lower prism structure is disposed on the light emitting surface. The intermedium layer is connected between the lower prism structure and the upper prism structure. When the chief light beam exits from the light emitting surface of the light guide plate, and then goes through the lower prism structure, it goes through the intermedium layer along a changed traveling direction. When the chief light beam exits from the intermedium layer, and goes through the upper prism structure, it turns from the changed traveling direction to the normal direction.

Abstract: The backlight unit (49) of a display device (69) having a liquid crystal display panel (59) is provided with a chassis (41), a diffusion plate (43) supported by the chassis, and a light source which irradiates the diffusion plate with light. The light source has a plurality of light-emitting modules (MJ) which include an LED (22) serving as a light-emitting element and a diffusion lens (24) that covers the LED. The light-emitting modules are arranged in a grid pattern on the chassis supporting the diffusion plate. Support pins (26) for supporting the diffusion plate are disposed at points on the chassis. The support pins are arranged on line segments connecting adjacent pairs of light-emitting modules.

Abstract: It is an object to manufacture a highly reliable backlight device with less color unevenness and less luminance unevenness, and a high-performance and highly reliable display device including the backlight device, which can display a high quality image. A light emitting diode (LED) is used as a light source of a backlight device and thermoelectric elements are provided in a chassis for holding the light emitting diode so as to surround the light emitting diode (the thermoelectric elements are provided under the light emitting diode and on the four sides thereof). A temperature in the backlight device is adjusted by cooling and heating by the thermoelectric elements.

Abstract: An object of the present invention is to suppress occurrence of uneven brightness. A lighting device 12 includes a hot cathode tube 17 that is a light source, a chassis 14 housing the hot cathode tube 17 and having an opening 14b for light from the hot cathode tube 17 to pass through, a diffuser 30 that is an optical member 15 that is provided to face the hot cathode tube 17 and cover the opening 14b, and a support member 20 supporting the diffuser 30 on a hot cathode tube 17 side. A low light reflectance portion LR is provided in a portion of the diffuser 30 that overlaps the support member 20 (support member overlapping portion). At least a surface of the low light reflectance portion LR that faces the hot cathode tube 17 has light reflectance lower than an adjacent portion ALR adjacent to the low light reflectance portion LR.

Abstract: A backlighting device (300, 400, 500, 600) emitting light having a first wavelength includes a first radiation emission device (302), e.g., an electroluminescent lamp, for emitting radiation having a second wavelength. A layer (306) of a plurality of photon emitting particles (308), e.g., free standing quantum dots or phosphorus particles, emits light having the first wavelength in response to the first radiation emission device (302), the first wavelength being larger than the second wavelength. A transparent material (116, 120, 122) overlies the layer of a plurality of photon emitting particles (308), wherein the light having a first wavelength passes through the transparent material (116, 120, 122). Optionally, a filter (402) may be placed over the layer (306) to block the radiation having a second wavelength, and a scattering layer (604) may be placed over the layer (306) to scatter wavelength other than the first wavelength.

Abstract: An LCD can include a Compact Collimating Reflector (CCR), is configured to be located downstream in a light path from an LCD light source, where the CCR is configured to reflect light from the LCD light source to provide collimated light downstream from the CCR. A light diffusion film is located downstream from the CCR and is configured to receive the collimated light from the CCR. An LCD panel is located downstream from the CCR.

Abstract: A backlight apparatus can avoid a situation where a light source cannot be turned on and includes a light source having a base portion, a connector member including a contact portion having a recessed shape and electrically connected to the base portion of the light source, and a contact correcting portion arranged to contact with the contact portion of the connector member, wherein the light source is arranged inside a recessed portion, having the recessed shape, of the contact portion, and the contact correcting portion is arranged to press the contact portion of the connector member toward the base portion of the light source so as to close the recessed portion on a side of open ends of the contact portion.

Abstract: A plurality of low refractive index material-exposed portions (23) having the same area and a plurality of high refractive index material-exposed portions (22) having different areas are mixed and arranged on an emission surface (11U) of a light emission angle adjusting sheet (11). In particular, a low refractive index material (13) has a shape having a width which monotonically decreases toward a light receiving surface (11B) side.

Abstract: An optical film, a backlight unit having the same, and a liquid crystal display device having the same are disclosed. The optical film comprises a base film and a plurality of structures disposed on the base film, at least one of the structures comprising a plurality of beads with a diffusion portion having a first diameter and a transmission portion having a second diameter integrally formed with each other.

Abstract: A light module of a LCD backlight module includes a circuit board and a plurality of light-emitting diodes (LEDs) arranged on the circuit board. Each of the LEDs has a wide far-field pattern, and each of the LEDs includes at least one LED chip and a molding unit packaging the LED chip. The LED chip is electrically connected to the circuit board.

Abstract: An apparatus and method for adaptively adjusting backlight are described. The backlight adjusting apparatus includes an intensity-pair distribution device, a brightness compensation module, a frame-adjusting device, a backlight control device, and a backlight module. The intensity-pair distribution device generates a plurality of intensity-pair distribution values of the image frames each composed of a plurality of pixel data. The brightness compensation module computes a dark-state ratio of the pixel data of a current image frame in response to the intensity-pair distribution values, and computes a brightness index of the current image frame in response to the dark-state ratio for generating a brightness compensating signal based on the dark-state ratio and the brightness index. The frame adjusting device adjusts the brightness of the total pixel data of the current image frame in response to brightness compensating signal.

Abstract: Disclosed is an LCD device having molding-type substrates formed so as to have a controllable thickness through simplified fabricating processes. The LCD device comprises: a lower cover; a plurality of lamps disposed on the lower cover with a constant interval therebetween, and providing light; molding-type substrates disposed at both sides of the lower cover, and having lamps coupled thereto; and an LC panel disposed on the lamps, and receiving light, wherein each of the molding-type substrates comprises: a conductive wire to which a voltage is supplied from outside; grippers integrally formed on the conductive wire with a constant interval therebetween, and coupling the lamps; and a bar-shaped mold frame including the conductive wire therein, and exposing the grippers to outside.

Abstract: Discharge tubes, each of which includes a glass tube and a ferrule that has a substantially cylindrical shape and is fitted to each end portion of the glass tube, are supported by a plurality of pairs of relay connectors (or supporting members) provided on the front side of a chassis having substantially a plate-shaped configuration. When a discharge tube is supported by relay connectors, stoppers provided on the relay connectors lock the ferrules so that axial movement of the discharge tube relative to the relay connectors is restricted.

Abstract: A light guide plate (LGP) including a first surface, a second surface, a light incident surface and a plurality of optical micro-structures is provided. The first surface is opposite to the second surface. The light incident surface connects the first surface and the second surface. The optical micro-structures are disposed on the second surface and include a plurality of round protrusive points and a plurality of curved protrusions. The curved protrusions are disposed among the round protrusive points. Each of the curved protrusions has a first arc side and a second arc side opposite to the first arc side, and an indentation of the first arc side and an indentation of the second arc side are substantially towards a same direction. In addition, a backlight module employing the above-mentioned LGP is also provided.

Abstract: A backlight includes a case having plural apertures in a main face thereof and a light source disposed in the case. A total area of the plural apertures is not less than 8% and not more than 15% of an area of the main face.

Abstract: Provided is an optical plate that resolves white screen generation while maintaining emission brightness, a backlight assembly and a display device including the same. The optical plate is a light guide plate for a liquid crystal display. The light guide plate includes at least one plane in which a plurality of uneven patterns forming crests and valleys are formed. The plurality of uneven patterns is formed such that the crests rise to a plurality of different heights.

Abstract: Provided is a light emitting module, which includes a module board, a light emitting diode, and a resin material. The module board includes a plurality of holes. The light emitting diode is in the hole. The resin material is in the hole. The module board includes a printed circuit board (PCB), and the PCB includes a photo solder resist (PSR) layer, an electrical conduction layer, and an insulation layer.

Abstract: Disclosed herein is a light emitting device, including: a light emitting diode; an sealing resin member having an arrangement face and configured to seal the light emitting diode; and a lens disposed on the arrangement face of the sealing resin member and formed so as to have a circular shape as viewed in the direction of an optical axis of light emitted from the light emitting diode, the lens having a concave portion formed at a central portion in such a manner as to be concave toward the sealing resin member.

Abstract: A display system with a distributed LED backlight includes: providing a plurality of tile LED light sources, each tile LED light source having a tile and a plurality of similar LED light sources on each tile connected for emitting light therefrom; orienting the plurality of tile LED light sources for illuminating a display from the back of the display; and integrating the plurality of tile LED light sources into a thermally and mechanically structurally integrated distributed LED tile matrix backlight light source.

Abstract: A light unit and a display device having the light unit are provided. The light unit comprises a plurality of light emitting modules each comprising a board and a light emitting device on the board, a bottom cover under the light emitting modules, a module connecting member that electrically interconnects the light emitting modules using an elastic body and is fixed on the bottom cover, and an optical sheet unit above the light emitting module.

Abstract: The present invention discloses a liquid crystal display module, a backlight module and a back plate thereof. The back plate has a back-plate mainbody disposed on a bottom of the backlight module, and two bent structures integrally and symmetrically arranged on two opposite sides of the back-plate mainbody for supporting an optical film assembly of the backlight module. The present invention is applied to a LCD module with a separate-type backlight module design for saving the used number of housing strips, simplifying the structure of the backlight module, and enhancing the stability thereof.

Abstract: A lighting device 12 of the present invention includes a light source 17, a chassis 14 configured to house the light source 17 and having an opening 14b for light from the light source 17 to pass through, and an optical member 15a provided so as to face the light source 17 and cover the opening 14b. A functional layer 42 is formed on the optical member 15a on the light source 17 side. The functional layer 42 provides a certain function to the optical member 15a. The functional layer 42 includes a light reflecting portion 40 and a charge restricting portion 41. The light reflecting portion 40 is configured to have different light reflectance in a plane by every area thereof and the charge restricting portion 41 is configured to restrict the optical member 15a from being charged.

Abstract: The present invention provides a connection component and a backlight module. The backlight module is provided with elastic hooks on a first surface of the housing, and the elastic hooks are tightly engaged in a second surface of the back plate, so that it only needs to form the openings on the back plate without punching or riveting to form thread stubs. Thus, the module size will not be affected. During installation of the backlight module, it only needs to slightly provide an external force to engage the elastic hooks into the openings without special installation procedure.

Abstract: A backlight unit including holding members capable of preventing occurrence of a noise caused when the members are brought into contact with an optical member such as a diffusion plate. A backlight unit (4) includes a chassis (14) including a surface (14a) housing light sources (12), an optical member (11) having a flat plate shape and disposed above the light sources, and members (25) holding the optical member and attached to the housing surface, wherein each of the holding members includes a portion (25a) holding the optical member, and paired leg portions (25b and 25c) extending from the holding portion, elastically deformable in a direction in which the leg portions approach/leave each other and including paired foot portions (25d) disposed at lower ends of the leg portions, at least one of the paired foot portions being placed in a manner slidable on the housing surface in the approaching/leaving direction.

Abstract: A surface light source device includes a light source facing a reflective surface of a reflecting member, and a light-controlling member composed of a transparent material and disposed across the light source from the reflecting member in such a manner as to face the reflective surface, the light-controlling member guiding light emitted from the light source in a predetermined direction. The light-controlling member has on a surface thereof remote from the reflective surface projections arranged on a plane. The projections have profiles of at least one kind, each having a symmetry axis or a symmetry plane. The symmetry axes or the symmetry planes of the projections are tilted at a predetermined angle with respect to a direction in which the light controlling member faces the reflecting member.

Abstract: Disclosed are various embodiments of a light guide and corresponding ambient light sensor, computing device and backlit display for use in a portable electronic device. The various embodiments of the light guide are configured to permit ambient light to be collected efficiently and accurately over wide angles of incidence, even under low-ambient-light conditions. The efficient and accurate collection of ambient light by the various embodiments of the light guide disclosed herein may be employed to more accurately control the amount and degree of backlighting provided to a backlit display, which in turn can be used to conserve valuable battery power in a portable electronic device.

Abstract: A backlight for a stereoscopic 3D liquid crystal display apparatus includes a light guide having a light emission surface and an opposing light extraction surface, a first side extends between the light emission surface and the light extraction surface, and a second side extends between the light emission surface and the light extraction surface, the second side opposing the first side. A centerline extends parallel to the first side and second side and is equidistant from the first side and the second side. A center elongated prism extends along the centerline and forms a portion of the light extraction surface. A plurality of elongated prisms extend parallel to the center elongated prism wherein the prisms are progressively more canted for each subsequent elongated prism further from the center elongated prism. A plurality of light sources disposed along the first side and the second side.

Abstract: A light-guide plate includes a base plate, first protrusion patterns and second protrusion patterns. The first protrusion patterns are formed on a left portion of an upper surface of the base plate with respect to a central line of the upper surface. The first protrusion patterns have a cross-section of a trapezoidal shape which has a top and a bottom parallel with each other and first and second inclined sides inclined at different angles with respect to the bottom side. The second protrusion patterns are formed on a right portion of the upper surface with respect to the central line. A cross-section of the second protrusion patterns have the trapezoidal shape and disposed substantially symmetrical to the first protrusion patterns with respect to the central line.

Abstract: This lighting unit can control luminance in a plurality of block areas independently, and minimize luminance unevenness caused by discretely arrayed light sources, with a reduced number of parts. The lighting unit comprises: a light guide plate having a first and a second grooves formed therein; a first light source group accommodated in the first groove; and a second light source group accommodated in the second groove; the light guide plate having a first light mixing area, a first light emitting area and a second light mixing area; in the first light mixing area, the thickness of the light guide plate progressively increasing away from the first light source group; in the second light mixing area, the thickness of the light guide plate progressively increasing away from the second light source group; and in the first light emitting area, the light guide plate being flat-plate-like.

Abstract: Illumination assemblies, components, and related methods are described. An illumination assembly is provided that comprises a plurality of illumination tiles each having a light emission surface. The plurality of illumination tiles are arranged in a two-dimensional array. The illumination tiles are constructed and arranged so as to provide a substantially contiguous illumination surface comprising the light emission surfaces of the plurality of the illumination tiles. Each illumination tile is illuminated by at least one solid state light-emitting device. A method of local dimming an illumination assembly of a display (e.g., LCD) backlight unit is also provided.

Abstract: Disclosed is a field-sequential liquid crystal display device having a plurality of pixels each of which is arranged to sequentially transmit light obtained by mixing at least two lights in addition to lights of three primary colors generated by a plurality of light sources.

Abstract: The present invention is a display assembly including: a display, a backlight module and a plurality of grills. The backlight module generates light rays for illuminating the display. The generated light rays exit the backlight module and are directed to a set of grills (ex.—Black Matrix substrates), which are configured between the backlight module and the display. The grills are configured for allowing a first portion of the light rays (ex.—light rays directed toward an eye position of a viewer of the display) to pass through the grills to the display, but are also configured for blocking a second portion of the light rays (ex.—light rays directed away from the viewer), thus preventing the second portion of light rays from reaching the display. The first portion of light rays are then received by and emitted from the display towards the eye position of the viewer.

Abstract: A display module including an electronic component and a panel module is provided. The electronic component is installed inside the display module. The panel module includes a first side and a second side, and the first side includes a glass module having an electro-conductive material and a display region, wherein the glass module includes an electronic component projection area and the electronic component projection area does not contain the electro-conductive material to prevent affecting the performance of the electronic component. The electronic component projection area is an area where the electronic component is projected on the panel module along a normal direction of the display region. According to a design requirement of the product, the electronic component may be fixed to a frame combined with the panel module or located in the glass module.

Abstract: A LCD system including multiple light sources optically coupled through different light entry regions to at least one waveguide element positioned to backlight a LCD panel. A LCD system including multiple light sources coupled to light entry regions of two or more waveguides comprising a waveguide system positioned to backlight a LCD panel. Waveguides of various configurations and promoting even lighting of associated LCD panels are provided. Resulting LCD systems enable uniformly lit panels having diagonal measurements in excess of 12 to 14 inches, but the invention is not limited to panels of any particular size.

Abstract: A liquid crystal display with focused illumination is described. In an example, a light-source emitting a plurality of discrete colors is focused onto a liquid crystal display panel. The liquid crystal display panel has a plurality of pixels and each pixel has regions corresponding to the colors emitted by the light-source. Light of each color is focused onto the regions of the pixels corresponding to that color.

Abstract: A liquid crystal module includes a rear frame, a U-shaped cold cathode tube and a cold cathode tube support member. The U-shaped cold cathode tube has a first straight tube portion, a second straight tube portion and a curved end portion that connects the first and second straight tube portions. The cold cathode tube support member has a mating component and an engaging component. The mating component restricts movements of the first straight tube portion in first and second directions of the rear frame relative to the rear frame. The engaging component restricts a movement of the second straight tube portion in the first direction of the rear frame relative to the rear frame. The engaging component supports the second straight tube portion for movement in the second direction of the rear frame relative to the rear frame.

Abstract: A backlight unit comprises a circuit board (20) having, a plurality of LED's (22) arranged in a matrix, a diffuser panel (62), and a support pin (50) positioned between the circuit board (20) and the diffuser panel (62) for supporting the diffuser panel (62). The support pin (50) includes a first fixation portion (51) inserted in a hole (21) formed on the circuit board (20), a second fixation portion (52) positioned apart from the first fixation portion (51), and a pillar (53) having a tip end supporting the diffuser panel (62). The pillar (53) and the first fixation portion (51) are aligned in a direction perpendicular to the circuit board (20). According to this backlight unit, it is possible to ensure freedom in wiring around the LED's (22) and to prevent the pillar (53) of the support pin (50) from hindering the light.

Abstract: The present invention relates generally to backlight modules for display devices and liquid crystal displays incorporating the same, and more particularly, to a backlight module for generating light with a single polarization state. The present invention provides a backlight module, comprising an optical cavity for reflecting and depolarizing light that is incident upon a front surface of said optical cavity and a multilayer polarizer comprising a plurality of layers. Said multilayer polarizer faces the front surface of the optical cavity and the layers are arranged in such a way that a light of polarization substantially parallel to the transmission axis of said multilayer polarizer is substantially transmitted and the light of substantially orthogonal polarization is substantially reflected by said multilayer polarizer in at least one predetermined wavelength subrange of the visible wavelength range.

Abstract: A backlight unit illuminating the rear of a transmissive display panel with light includes a light source substrate, a base member, and a heat pipe. The light source substrate has a light source and faces the rear of the display panel. The base member is made of sheet metal, on which the light source substrate is mounted, and fixed to the rear of a chassis of the backlight unit. The heat pipe is attached to the base member and receives heat generated in the light source through the base member. The base member includes a plurality of groove portions extending in a lengthwise direction of the light source substrate formed at predetermined intervals and a plurality of planes on which the light source substrates facing the display panel are formed respectively. The heat pipe is provided in the lengthwise direction of the light source substrate under each of the planes.

Abstract: A backlight unit and a liquid crystal display using the backlight unit are disclosed. The backlight unit includes a plurality of lamps, a lower cover whose an upper portion has an opening, a lamp guide, and an optical member on the lamps. The lamps are positioned in an inside space of the lower cover. The lamp guide includes a first support unit on a surface of the inside space of the lower cover, holder units that are positioned on an upper surface of the first support unit to hold the lamps, a second support unit that is positioned on the upper surface of the first support unit to support the optical member, and a fastening unit fastening the first support unit to the lower cover. The first support unit includes a projection for increasing a reflective area.

Abstract: The invention relates to a liquid-crystal display fitted with a backlighting system having a white light source which comprises a semiconductor diode and a phosphor layer comprising a combination of at least two phosphors, where at least one phosphor emits red light and at least one phosphor emits green light, and to a process for the production thereof.

Abstract: A backlight structure comprises a frame, a circuit board, and a connector. The frame has an opening. The circuit board is located below the frame and has a through hole, wherein the through hole aligns with the opening. The connector passes through the opening and the through hole, protrudes from a surface of the frame, and is electrically connected to the circuit board.

Abstract: A display device comprising: a display panel including a display region; a plurality of light source lamps arranged to emit light toward the display region, each of the plurality of the light source lamps including a folded portion or a curved portion located at least partially outside of the display region and arranged along to an edge of the display panel; and a reflective surface underlying the light source lamps, the reflective surface including a first region with a first reflectance located in an area extending along said edge of the display panel and outside of the display region, and a second region with a second reflectance higher than the first reflectance.

Abstract: The present disclosure is a backlight module including a light guide plate, a supporter, and a light source module. The light guide plate has a light incident side. The supporter has a bottom plate, a sidewall, and a top plate corresponding to the bottom plate. The bottom plate extends from a first end of the sidewall toward the light guide plate, and the top plate extends along a second end of the sidewall toward the light guide plate. The length of the sidewall is longer than the length of the top plate, such that the top plate corresponding to the sidewall forms at least one breach to expose the second end of the sidewall. The bottom plate, the top plate, and the sidewall together form an accommodating space, and the light incident side of the light guide plate is disposed between the top plate and the bottom plate. The light source module is disposed in the accommodating space and partially exposed through the at least one breach.

Abstract: A backlight assembly includes a light source unit including a circuit board, a light source disposed on a first plane of the circuit board, and at least one connection unit disposed on a second plane opposite to the first plane of the circuit board and electrically connected to the light source, a receiving container having a bottom plate and sidewalls extending from edges of the bottom plate and receiving the light source unit, the bottom plate including at least one opening portion in which the connection unit is inserted and exposed to the outside, and at least one driving unit disposed at a rear surface of the receiving container and connected to the connection unit for driving the light source unit.

Abstract: A backlight unit capable of preventing deterioration in image quality of a display image by controlling driving timing of a backlight in consideration of an operation speed of liquid crystal, a liquid crystal display device using the same, and a method for driving the backlight unit are disclosed. The backlight unit includes a backlight including a plurality of light sources to generate light, and a backlight control unit configured to control an on/off time of the backlight in units of at least one frame using an off time setting value set by a user and an external dimming control signal and to control the amount of light emitted from the backlight.

Abstract: The present invention features a system for uniformly distributing luminance and a high degree of collimation from a back light module for flat-panel, liquid crystal displays (LCDs) simultaneously. A constant and uniform luminance output of the back light module in two directions is obtained through appropriate selection of lamps, geometry and optical components. An appropriate balance of lamps, lamp spacing, diffusers and light collimating optics are chosen to produce a high brightness back light module with very high intensity output over two very large surfaces. Variations in intensity over the illuminated area are minimized using light recycling in conjunction with the reflective diffusers and collimating optics. Precision collimators eliminate light beyond a defined angle, as required in tiled or monolithic flat-panel LCDs with predetermined display specifications.