Abstract: The present invention discloses a manufacturing method of heat-dissipating element, including the following steps: processing a heat-dissipating element body with a bottom plate and at least two stop plates, the stop plates being disposed at two sides of the bottom plate and bending towards surface; cutting from the bottom plate of the heat-dissipating element body to form heat-dissipating element, the dissipating element at least comprising two heat-dissipating elements of same shape or of symmetric shape. The present invention also discloses a heat-dissipating element and backlight module manufactured by the above method. The heat-dissipating element, manufacturing method and backlight module thereof can maintain optimal heat-dissipation effect and save material used to lower cost.

Abstract: Flat illuminating display device with light emitting means to illuminate a film for display of an image applied to a display area, wherein the light emitting means are embodied as at least one light coupling unit arranged laterally at a translucent film thus forming a light duct, wherein the light such fed into the adjacent edge area into the film is reflected by a reflective layer, which is applied on at least one side, to homogeneously spread within the film, wherein a reflection screen to obtain a light emission is provided opposite of the display area to create said display area.

Abstract: A light-emitting mounting structure for valuable document acceptor includes a main unit defining a front opening and a bill passage, LEDs mounted in the main unit and respectively arranged at opposing top and bottom sides relative to the front opening, a face panel mounted at the front side of the main unit and defining a bill insertion slot having a diverging front open side for the insertion of a valuable document into the bill passage, light diffuser panels respectively mounted in the face panel for diffusing light toward the diverging front open side of the bill insertion slot, and a light guide plate mounted in the face panel and adapted to guide emitted light from the LEDs toward the light diffuser panels. This design allows adjustment of the amount of installed LEDs and their installation locations.

Abstract: An illumination device is disclosed, having a lightguide optically coupled to a light source and a transducer for supplying power to the light source by converting energy received from a remote transmitter. Energy received from a remote transmitter can comprise radiofrequency waves, microwaves, infrared radiation, visible light, ultraviolet light, sunlight, sound waves or heat.

Abstract: A backlit storybook for the visually impaired comprises an audio and visual storybook including a book, a base, and an integral backlight. Each page of the book comprises images or words. The book is placed upon the base to enable each individual page to backlight the images and words to provide a high-contrast lighted character pattern easily readable by those with impaired vision. The system further includes a speaker for audio to play a corresponding narration and indicates when different pages should be turned.

Abstract: In a local dimming technology for reducing power consumption of a display device using a backlight as in a liquid crystal display, the backlight is configured by a plurality of independently controllable light sources, an image is divided into areas of the same number as that of the controllable light sources and light emission intensity of the light source is calculated based on a feature value of each area. However, this technology has a problem that when a backlight luminance distribution within each area is not uniform, image quality is deteriorated or a power consumption reduction effect is lowered. In the present invention, the image is divided into areas of the number greater than that of the controllable light sources, and the light emission intensity of each light source is determined based on the feature values of a plurality of areas to reduce the above-described problem.

Abstract: A display device and a backlight module thereof are provided. The display device comprises a backlight module and a panel. The backlight module includes a bottom frame, a light guide, an optical film structure and a top frame. The light guide is disposed above the bottom frame. The optical film structure is disposed above the light guide. The top frame covers a periphery of the optical film structure and covers a lateral side of the bottom frame. The panel is disposed above the top frame.

Abstract: A backlight assembly includes a light guide plate, a light source module spaced apart by a gap from the guide plate, a receiving container and a gap adjusting element. The gap adjusting element is inter-coupled between the receiving container and the light source module and is actuatable to adjust the gap distance between the light source module and the light guide plate. Accordingly, a display quality may be prevented from being decreased, and the productivity may be enhanced.

Abstract: A pattern forming apparatus for a light guide panel is provided. The apparatus may include a pattern design system, a control system, a header moving unit including an XY moving unit and a header unit, a laser system, beam splitters, and an optical unit. The pattern design system may have an input of data on a pattern. The control system may connect with the pattern design system and transmits a position signal. The XY moving unit may mechanically move up/down and left/right in response to the position signal. The header unit may be coupled with the XY moving unit and reflects a scanned laser beam. The laser system may output a laser beam by a pulse signal. The beam splitters may split a laser beam into two or more laser beams. The optical unit may reflect and collect the two or more laser beams.

Abstract: A position light and light guide that serve as a light source are disposed on a front cover. The light guide extends in a width direction and receives and reflects light from the position light that is emitted in the width direction of the chassis. The light guide has first and second emission faces. The first emission face emits a first portion of the reflected light and faces upward or downward. The second emission face emits a second portion of the reflected light and faces forward. A length of the light guide in a front and back direction and a length of the light guide in a normal direction of the first emission face that is normal to the first emission face are both shorter than a length of the light guide in the width direction.

Abstract: A lighting apparatus is held by a chassis and includes a plurality of LED modules emitting light toward an outer edge portion of the chassis and a light guiding plate for controlling the direction of light emission from the plurality of LED modules to perform illumination. The LED module is not arranged at the outer edge portion of the chassis so that moment acting on the chassis as the apparatus main body holding the LED module can be reduced as compared with the case where the LED module is arranged at the outer edge portion of the chassis. Therefore, the deformation such as bending of the chassis can be prevented.

Abstract: A display apparatus for a vehicle and a method for producing the display apparatus are described. The display apparatus comprises a transparent plastic plate having a front side, a rear side, and an edge surface surrounding the plastic plate. The display apparatus has a switchable light source of visible light directed onto the edge surface of the plastic plate. The plastic plate has transparent display elements that are disposed as limited zones inside the plastic plate and have light-sensitive dopant particles. When the light source is switched on, the dopant particles scatter the light so that the display elements become visible from the front side.

Abstract: A control panel including a cover which is provided with at least one tactile pressure detection zone forming a control button, in which a force sensor is arranged between the cover and a support, behind the detection zone, in which a spacer made of elastically compressible material is mounted between the force sensor and the cover so as to take up the mechanical plays between the force sensor and the cover, characterized by the fact that the spacer is at least partially translucent and by the fact that the control panel includes at least one main light source and a light collector which permits injection of the light produced by the said main light source into the thickness of the spacer so that the spacer produces a backlighting beam directed towards a zone to be illuminated of the detection zone.

Abstract: A front light module, including: a light source; a light guide plate, having a first refractive index and having a side face neighboring the light source; a medium layer, placed over the light guide plate and having a second refractive index, wherein the second refractive index is smaller than the first refractive index; a transparent material layer, placed over the medium layer; and a transparent glue layer, placed under the light guide plate and having a third refractive index, wherein the third refractive index is larger than the refractive index of air and smaller than or equal to the first refractive index.

Abstract: An LED display unit includes a light guide, a diffusion layer, an LED module, and a solar panel. The light guide includes a first light incident surface and a light emitting surface connected to the first light incident surface. The diffusion layer includes a side surface and a second light incident surface connected to the side surface. The second light incident surface is adjacent to the light emitting surface. The LED module is adjacent to the first light incident surface. The solar panel is adjacent to the side surface and electrically connected with the LED module.

Abstract: A backlight unit includes a light guide plate and a light source unit. The light guide plate includes an exit surface which has a polygonal shape, a lower surface which faces the exit surface, and side surfaces which connect the exit surface and the lower surface. The light guide plate guides a light such that that light exits from the exit surface. The light source unit includes a plurality of light sources which provide the light to the light guide plate. The light guide plate includes a protrusion which protrudes from an end of the lower surface in a direction opposite to the exit surface. The protrusion includes a first inclination surface which is connected to one of the side surfaces, and a second inclination surface which connects the first inclination surface and the lower surface to each other.

Abstract: There are provided systems, devices and methods for operating a light source to match a white point of ambient light. In one embodiment, a light control system is provided. The light control system includes a light source and a light sensor. The light sensor is configured to operate in conjunction with the light source to provide a visual effect. A controller is electrically coupled to the light source and the light sensor and configured to determine the intensity and color of light to which the light sensor is exposed and dynamically adjust the output of the light source to match the determined intensity and color of light to which the light sensor is exposed.

Abstract: Disclosed is a display device including a plurality of channels for forming a specific pattern, in which each of the channels includes: a light source module comprising one or more light sources for generating optical signals having different wavelengths; a driving module for controlling on/off or strength of the optical signal generated in the light source module; an optical waveguide for transferring the optical signal generated in the light source module to an outside without a loss of the optical signal; and a scattering pattern for scattering the optical signal transferred through the optical waveguide and displaying the scattered optical signal to the outside.

Abstract: A display device includes a backlight module, a display panel, a prism film, a light-splitting layer, and a grating layer. The light-splitting layer splits light into a first backlight group and a second backlight group, wherein the two groups are inclined in different directions relative to a light-emitting surface of the backlight module. The grating layer allows the first backlight group to pass while blocking the second backlight group. The prism film has a plurality of prisms disposed facing the display panel. Each prism has a first surface and a second surface, wherein the angle between the first surface and the normal line to the light-emitting surface is greater than the angle between the second surface and the normal line to the light-emitting surface.

Abstract: Optical articles that include adhesive lightguides having resonant circuits and one or more light sources are described. More particularly, optical articles having resonant circuits that, upon a triggering event, cause the one or more light source to emit light into the adhesive lightguide such that light is transported within the lightguide by total internal reflection are described. Additionally, applications and embodiments that include such optical articles are described.

Abstract: Disclosed is a display device. In detail, a liquid micro-shutter display device includes a light source emitting light, a transparent lower substrate positioned in an light path of the light source, an optical conversion unit performing at least one of a function of converting light from the light source into light having a different wavelength band corresponding to a sub-pixel and a function of reflecting ambient light corresponding to a sub-pixel, a transparent upper substrate positioned in an light path of light output from the optical conversion unit, and a liquid micro-shutter positioned between the transparent lower substrate and the transparent upper substrate and opening and closing the path of light or adjusting an open area.

Abstract: An edge-lit waveguide-based backlighting apparatus for high-brightness microdisplays. In one example, the backlighting apparatus includes a waveguide having substantially parallel top and bottom surfaces and a side surface substantially perpendicular to the top and bottom surfaces and extending between the top and bottom surfaces along a periphery of the waveguide, a specularly reflective film disposed on and at least partially covering the bottom and side surfaces of the waveguide, and at least one light source disposed on the side surface and configured to emit light into the waveguide in a direction of a length of the waveguide, the waveguide being configured to direct the light out of an output region of the top surface of the waveguide.

Abstract: A handheld test strip illumination device includes a housing. A strip connector positioned within the housing receives a first portion of a test strip in a test strip test position. A light source is positioned within the housing. A lens/light reflecting device is aligned to receive photons emitted from the light source and direct the photons onto the first portion of the test strip within the strip connector. The first portion of the test strip within the strip connector includes a longitudinal transparent layer receiving the photons emitted from the lens/light reflecting device within the housing. The photons pass through the longitudinal transparent layer and are emitted from the longitudinal transparent layer in a second portion of the test strip positioned outside of the housing, thereby illuminating a dose area of the test strip.

Abstract: An adjustable back-lighting structure for a keyboard includes a light guide panel having vertical peripheral edges and at least one light entering surface; and a surrounding edge made of plastic or chemical macromolecule compound material, having a connecting interface tightly bonded with the vertical peripheral edges of the light guide panel. The connecting interface can generates the feedback beam Bf to enhance the illumination effect. Therefore, the light transmission in the light guide panel can be limited in the upper and lower surfaces without leakage at the vertical peripheral edges.

Abstract: An illumination device including: a support member accommodating therein a light guiding plate, and having a board placement space in a region where being along a longitudinal direction of an end surface of the light guiding plate, and extending from the end surface side of the light guiding plate to a back surface side thereof; and a light source circuit unit including a bendable circuit board including first and second regions, the first region including light emitting chips, and the second region being formed with a densely-packed portion of a wiring pattern of the light emitting chips. The light source circuit unit is placed in the board placement space after being bent to allow the light emitting chips to face the end surface of the light guiding plate, and to allow the densely-packed portion of the wiring pattern to come on the back surface side of the light guiding plate.

Abstract: A lighting apparatus according to the present invention includes a light guiding unit and a plurality of light sources arranged along the incidence face of the light guiding unit. The plurality of light sources are constituted by a plurality of light source groups such that one light source group corresponds to one block. The one light source group includes a plurality of white light sources and a plurality of color light sources. Among the plurality of color light sources included in the one light source group, the color light sources with an emission color of the highest light intensity, when the light sources are driven under identical drive conditions, are disposed at both ends of the light source group. All of the white light sources included in the plurality of light sources arranged along the incidence face are disposed equidistantly.

Abstract: A display includes: a display section including pixels, and grouping the pixels into pixel groups to assign, in a predetermined assignment pattern, perspective images to the groups, respectively, thereby displaying the perspective images; and a light source device including a light guide plate and one or more first light sources, and emitting light, the light guide plate having a first internal reflection face and a second internal reflection face and having one or more side faces, and the first light sources applying first illumination light into the light guide plate. One or both of the first and second internal reflection faces each have scattering regions arranged in a predetermined arrangement pattern corresponding to the predetermined assignment pattern, the scattering regions allowing the first illumination light from the first light source to be scattered and to exit to the outside of the light guide plate through the first internal reflection face.

Abstract: In a light source module and a backlight assembly having the light source module, the light source module includes a flexible printed circuit board; a light source part on an upper surface of the flexible printed circuit board and including a light emitting chip; a substrate on a lower surface of the flexible printed circuit board; and a heat dissipating part which extends from the light emitting chip and contacts the substrate.

Abstract: A display apparatus includes a liquid crystal panel and a backlight unit that emits light toward the back surface of the liquid crystal panel. The backlight unit includes: an LED; a wiring substrate having the LED mounted thereon; a light guide plate which light from the LED enters through a side surface and exits through a main surface toward the back surface of the liquid crystal panel; and a support component including a first support member that supports the LED and a second support member that supports the light guide plate. The support component is able to move between a first position at which the first support member supports the LED and the second support member supports the light guide plate and a second position at which the first support member is apart from the LED and the second support member supports the light guide plate.

Abstract: A portable device casing includes a light guiding plate and a cover. The light guiding plate is fitted over an outer surface of the portable device and has an opening through which a light source of the portable device is exposed to an outside of the light guiding plate. The light guiding plate receives light emitted from the light source and emits the light outwards. The cover is movable with respect to the opening of the light guiding plate. The portable device casing can safely protect a portable device from external impact. Further, the light guiding plate of the portable device casing emits light, thus satisfying the aesthetic sense of a user.

Abstract: The present invention provides an edge-lit backlight module containing 2n+1 sequentially and equally separated backlight partitions where the 2n+1 backlight partitions are lit or turned off individually under a time-sequence control; a LCD panel scanned by the edge-lit backlight module is correspondingly separated into 2n+1 display partitions; the signal to the LCD panel is loaded into the LCD panel frame by frame and display partition by display partition under a time-sequence control; the time sequences to the signal to the LCD panel and the signal to the backlight partitions are controlled so that, whenever the signal loaded into the 2n+1 display partitions of the LCD panel constitutes a complete frame, the n+1 backlight partition in the middle of the edge-lit backlight module is always lit. The present invention also provides a scanning method of an edge-lit backlight module.

Abstract: A holding device for an operator control on a front cover of an electrical appliance is designed for attachment to the front cover and has a feedthrough for a rotating shaft of a rotary encoder of the operator control. The holding device is embodied in an annular fashion around the feedthrough and has a front cover attachment part as well as a lighting ring part which is fitted onto the front of the front cover attachment part. The lighting ring part essentially covers the front cover attachment part toward the front, wherein the two parts have a circular-ring-like intermediate space between them, in which intermediate space at least one component carrier, which has a plurality of LEDs on the side toward the front cover attachment part, is arranged.

Abstract: The touch-operating input device is configured so that when the control circuit turns on the main light source corresponding to each of the translucent operation buttons that can be operated, the control circuit, on condition that the translucent operation button corresponding to the main light source that is turned on is operated, turns off the sub-light source corresponding to the translucent operation button that is turned on simultaneously with the main light source. Ease of operation is increased by enabling the operator to distinguish operated translucent operation buttons from translucent operation buttons that have not been operated according to whether or not the main light sources are lit.

Abstract: A light emitting device array includes a substrate including a first region and a second region that is inclined with respect to the first region, a first light emitting device package arranged on the first region, and a second light emitting device package that is arranged on the second region and is inclined with respect to the first light emitting device package at an inclination angle between 90° and 160°.

Abstract: A computer bezel includes a bezel body, a light-guide structure mounted to the bezel body, and one or more light sources mounted on the bezel body. The light-guide structure includes a first bottom surface and a first end surface connected to the first bottom surface. The lighting portion includes an outer surface exposed out of the bezel body, a first side surface, and a second bottom surface connected to the guiding portion. A cross section of the light-guide structure is L-shaped taken along a plane substantially parallel to the first end surface. The guiding portion is configured to guide a plurality of light beams emitted from the light source to the lighting portion to enable the plurality of light beams to be refracted from the outer surface so as to be visible to a user.

Abstract: According to one embodiment, an electronic apparatus includes a housing, a panel, and a light source. The panel includes a display screen. The housing includes a first wall and a second wall. The first wall includes an opening exposing the display screen. The second wall is opposite to the first wall. Light from the light source reaches the panel through the second wall.

Abstract: A computer bezel includes a bezel body; a light-guide structure mounted to the bezel body, and one or more light sources mounted on the bezel body. The light-guide structure includes a guiding portion and a lighting portion extending from the guiding portion. The lighting portion defines an outer surface exposed out of the bezel body. The guiding portion includes a first bottom surface and a first end surface connected to the first bottom surface. An obtuse angle is defined between the first end surface and the first bottom surface. The light source corresponds to the first end surface. The guiding portion is configured to guide a plurality of light beams emitted from the one or more light sources to the lighting portion to enable the plurality of light beams to be refracted from the outer surface so as to be visible to a user.

Abstract: A light source device includes: a light guide plate having a first internal reflection face and a second internal reflection face, and having one or more side faces; one or more first light sources applying first illumination light into the light guide plate; and a second light source disposed to face a surface, of the light guide plate, corresponding to the second internal reflection face, the second light source externally applying second illumination light to the second internal reflection face. One or both of the first and second internal reflection faces each have scattering regions allowing the first illumination light from the first light source to be scattered and to exit from the first internal reflection face to outside the light guide plate, each of the scattering regions being provided with one or more pass-through regions each allowing the second illumination light from the second light source to pass therethrough.

Abstract: A light-emitting module includes a light guide plate and a light source unit in accordance with an embodiment. The light guide plate include an upper surface, a lower surface facing the upper surface, a plurality of side surfaces connecting the upper surface and the lower surface, and a cross-sectional surface connected to at least one of the side surfaces. The light source unit includes a substrate disposed in correspondence with the cross-sectional surface and a point light source mounted on the substrate to emit light to the cross-sectional surface. Thus, light-emitting efficiency may be enhanced and the arrangement of point light sources may be optimized, so that a required amount of emitted light may be obtained using a small number of the point light sources. In addition, uniformity of luminance and heat-radiating efficiency may also be enhanced.

Abstract: A mobile terminal includes a signal input module for inputting a signal as an opening formed at a case of a terminal body is pressed, and the signal input module includes an input key, a light guiding unit, a key mold, a light emitting unit, a circuit board, a dome switch and an actuator, which are all integrally fixed together and moved by being pressed. The light emitting unit is accommodated in a key mold having an opening for allowing light to be transferred to the light guiding unit. The input key, the light guiding unit, the key mold and the light emitting unit are mounted onto one surface of the circuit board, the circuit board is moved by being pressed, and the dome switch mounted onto another surface of the circuit board is transformed so as to generate a signal.

Abstract: Provided is an edge light type planar light source device capable of preventing luminance unevenness. An edge light type planar light source device (4) includes a light guide plate (7) emitting light entering from an end face (74) from a front face, a linear light source unit (11) including LED elements (111) including light emitting surfaces (113) and an LED substrate (112) where the elements are aligned, the surfaces opposed to the end face, a floor face (91) where the plate is disposed, and a locking member (10) erecting on the floor face and inserted in a peripheral portion of the plate from a back face toward the front face, wherein some elements are disposed in a vicinity of the locking member and are disposed on the substrate such that the surfaces are inclined toward the end face to gather the light at the rear of the locking member.

Abstract: Disclosed are a light emitting diode package and a backlight unit having the same. The light emitting diode package includes a light emitting diode including generating a light in response to a driving voltage applied from the outside, first and second main leads connected to first and second electrodes, respectively, and a body section provided therein with the light emitting diode and fixes the first and second main leads thereto. The light emitting diode package includes a first sub-lead having one end portion connected to the first main lead, and a second sub-lead having one end portion connected to the second main lead and an opposite end portion spaced apart from an opposite end portion of the first sub-lead at a predetermined distance while facing the opposite end portion of the first sub-lead. The backlight unit includes a plurality of the light emitting diode packages.

Abstract: A backlight unit according to embodiment comprise of a frame, a light emitting device module disposed on a side of the frame and a plurality of light guide members disposed in the direction of the light irradiated from the light emitting device, wherein the light guide members have light transmissivity and reflectivity different from each other.

Abstract: The attenuation of light per unit length in a waveguide as a result of active pixels (i.e., open pixels) may be corrected or mitigated by injecting apodized light into the waveguide. A light injection system and method is provided to enhance the luminous uniformity of the active pixels in a waveguide-based display. Embodiments of the present invention include a slab waveguide having a first edge and a second edge that intersect at a vertex, a first light source disposed along the first edge, and a second light source disposed along the second edge. The first light source, or the second light source, or both, comprises an apodized light source.

Abstract: A display apparatus includes a display panel which receives light to display an image, a backlight module and a receiving container receiving the display panel, the backlight module. The backlight module includes a combining bar, a light source, a light guiding plate. The combining bar includes an upper plate supporting the display panel, a lower plate, and an extending plate connecting the upper plate to the lower plate. The light source disposed in a space formed by the upper plate, the lower plate and the extending plate. The light guiding plate between the upper plate and the lower plate.

Abstract: An image forming apparatus 1 is provided with an apparatus main body 2 for performing a predetermined process on a sheet, a cover 34 openable and closable relative to the apparatus main body 2, a light emitting unit 51 provided in the apparatus main body 2 and including an emission source 511 for generating light, a control board 512 for controlling the emission source 511 and causing it to generate the light and wiring 513 electrically connected to the control board 512, and a display member 52 provided in the cover 34, arranged to face the emission source 511 and including an incident portion 521 on which the light is incident, an output portion 522 for outputting the light to the outside and a light guide portion 523 for guiding the light from the incident portion 521 to the output portion 522.

Abstract: The present invention provides in one aspect a light device having a light guide. The light guide (20) has at least one major side defining a light extraction side (26). The light device further has at least one fibrous layer (30), typically a non-woven or woven fibrous layer, disposed on the major side of said light guide defining said light extraction side. At the light extraction side, the light device has a plurality of discrete bonding areas (40) at which the at least one fibrous layer is bonded to the major side of said light guide. In a particular aspect, the bonding areas define light extraction elements on the light extraction side. Such an arrangement typically provides for an easy, reliable and cost-effective light device useful for a variety of applications including, for example, illuminating the interior of a vehicle.

Abstract: An LCD indicator unit contains an LCD indicator with a display portion that includes set temperature and current temperature display portions, a diffusion sheet disposed on the rear surface side of the LCD indicator, a reflective frame body disposed on the rear surface side of the diffusion sheet, a light guide plate disposed on the rear surface side of the reflective frame body such that an outer peripheral portion thereof is covered with the reflective frame body, and an LCD indicator control substrate-disposed on the rear surface side of the light guide plate, with LEDs serving as light sources for the LCD indicator mounted on a right-side outer peripheral portion on the front surface side of the LCD indicator control substrate. Light emitted from the LEDs is caused to enter a side wall surface portion of the light guide plate to irradiate the display portion of the LCD indicator.

Abstract: A LED illuminated system to illuminate a messaging panel may include a main housing, an edge lit messaging panel to be detachably connected to the main housing, a blackout panel to be detachably connected to the main housing and to cooperate with the edge lit messaging panel, a front LED light element to edge light the edge the messaging panel and positioned within the main housing, and a back LED light element to provide an angled light and positioned within the main housing.

Abstract: A thickness of a backlight unit is reduced and brightness in a middle portion of a display device is improved. The backlight unit includes a first LED unit 23; a first light guide plate 20 including a light entering surface 20b, and a light exiting surface 20a; and a second light guide plate 21 including a light entering surface 21b, and a light exiting surface 21a. The light exiting surface 21a of the second light guide plate 21 is disposed to overlap at least a portion F of the light existing surface 20a of the first light guide plate 20 that is farthest from the first LED unit 23. Light outputted from the light exiting surface 21a of the second light guide plate 21 enters the first light guide plate 20 at least through a surface of the first light guide plate 20 opposite to the light exiting surface 20a thereof.