Abstract: A light emitting device comprising a first frame, a light bar and a light guide plate is provided. The first frame has a groove which has a bottom plane, two inner walls, and an opening. The light bar disposed in the groove comprises a substrate having a lower surface attached to the bottom plane and an upper surface having several light sources. The light guide plate has a light emitting surface and a light incident surface. The light incident surface perpendicular and adjoining to the light emitting surface has several abutting portions. The light guide plate is inserted to the groove via the opening. The emitting light of the light source entering the light guide plate is guided by the light guide plate to be emitted off the light emitting surface. The abutting portions abut to the upper surface, so that the light bar is fixed in the groove.

Abstract: This invention relates to a complex prism sheet which is configured such that heat-resistant coating layers are formed on both surfaces of a substrate layer, thus preventing wrinkling or curling of the complex prism sheet due to heat generated from a light source, and increasing concealment and electro-optic characteristics, ultimately improving properties of a light crystal display. This complex prism sheet can be usefully applied to television (TV) sets, monitors, notebook personal computers (NBPCs), etc., which are required to have heat resistance, slimness and concealment because of an increasing use of a light emitting diode (LED) light source these days.

Abstract: The present invention provides a backlight module, which includes a backplane (2) and a light guide plate (4), a backlight source (6), a mounting bracket (8), a quantum dot rail (10), and a heat isolation member (12) mounted in the backplane (2). The quantum dot rail (10) is fixedly mounted, via the mounting bracket (8), between the light guide plate (4) and the backlight source (6). The mounting bracket (8) is made of an aluminum material. The heat isolation member (12) is arranged between the quantum dot rail (10) and the mounting bracket (8). The present invention uses a mounting bracket made of an aluminum material to fix a backlight source for enhancing the effect of heat dissipation and also to fix the quantum dot rail for ensuring a desired effect of fixing and reducing cost.

Abstract: A liquid crystal display device includes a light source, a light source circuit board on which the light source is mounted, and which electrically controls the light source, a light guide plate optical system including a light guide plate having an incidence plane from which a light emitted from the light source is input, and outputting the light as a planar light, and a frame that holds the light guide plate optical system and the light source circuit board, and has a hole at a position of a light source arrangement plane which faces the incidence plane in which the light source is arranged. The light source circuit board is located at the frame so that the light source is arranged inside the hole from a rear surface side of the light source arrangement plane.

Abstract: A mobile terminal including a case; a touch key mounted in a predetermined portion of the case and configured to generate touch type input data; a light source arranged on a back side of the touch key and configured to emit light; and a light diffusion unit configured to diffuse the light emitted from the light source and provide a backlight to the touch key. Further, the light diffusion unit includes a light guide part configured to guide the light emitted by the light source; an air gap arranged on the light guide part and configured to diffuse the light provided from the light guide part; and a diffuser arranged on the air gap and configured to diffuse the light provided from the air gap towards the touch key.

Abstract: The present invention provides a backlight module of display device, which includes: a back panel, a reflection hood arranged on the back panel, a backlight source arranged on the reflection hood, a reflector board arranged on the back panel, a light guide plate arranged on the reflector board, and a plastic frame coupled to the back panel and the light guide plate. Light emitting from the backlight source is reflected by the reflection hood into the light guide plate. The reflection hood includes a reflection section, an abutment section connected to the reflection section, and a bearing section connected to the abutment section. The abutment section is positioned against the back panel. The backlight source is mounted on the bearing section. The bearing section is positioned on the back panel.

Abstract: A liquid crystal display device includes a LCD panel having a first polarizer, a first substrate, a second substrate and a second polarizer are sequentially provided from a front surface side, a frame which surrounds the LCD panel and has a first opening having first to fourth sides, a planar light source disposed on the rear surface side of the LCD panel in the first opening, a plurality of optical sheet groups which are disposed between the planar light source and the LCD panel, and an adhesive layer which has a second opening formed along the first to fourth sides of the frame. A front surface side of the adhesive layer is adhered to the LCD panel along at least the first side, and a rear surface side of the adhesive layer is adhered to the plurality of optical sheet groups and the frame along at least the first side.

Abstract: The present invention relates to a backlight module suitable for transportation, which comprises a backlight unit, the backlight unit comprises a backplate, and a light source, as well as an optical film, a light guide plate and a reflection plate arranged in sequence on the backplate from up to down; the backlight module further comprises a fixing belt used for fixing the optical film, the fixing belt being tightly tied outside the backlight unit along at least one of the length and width directions of the backlight unit. This backlight module uses the fixing belt to fix the optical film instead of using the rubber frame to press against the optical film, thus the cost of the rubber frame assembly is saved, the optical film can be prevented from translocating due to vibration, and the winding strength can be ensured to be moderate.

Abstract: A liquid crystal display device includes a liquid crystal display panel, and a backlight of an edge light system. The backlight includes a light source, and a light guide plate that has a light emitting surface for emitting a light input from the light source into a planar shape, and is placed on the liquid crystal display panel. The light source is located to face an end surface of the light guide plate on a side of the liquid crystal display panel so as not to overlap with the liquid crystal display panel.

Abstract: A computer display includes a row of lamps such as LEDs arranged along the bottom edge of the display to project light forwardly and downwardly from the display to the typical location at which a keyboard is positioned to provide balanced, non-glaring illumination of the keyboard.

Abstract: Provided is a directional backlight unit that enables a three-dimensional (3D) image to be viewed at various viewing angles. The directional backlight unit includes a light source configured to emit light, a first reflector configured to reflect light emitted from the light source, a second reflector configured to additionally reflect the light reflected by the first reflector, a light guide plate configured to accommodate the light reflected by the first reflector or the second reflector and output the light to an outside, and an angle adjustor configured to rotate the first reflector or the second reflector to a reflective angle. The angle adjustor rotates the first reflector or the second reflector to change an incident angle of the light incident on the light guide plate and a refractive angle of the light output to the outside.

Abstract: An optical film, a circular polarizing plate, and a display device are provided. The optical film may exhibit a desired phase retardation property in a wide wavelength range even when it is relatively thin. The optical film may exhibit the ¼ wavelength phase retardation property. The optical film may be manufactured by a simple process. The optical film may be used in LCDs such as a reflective LCD, or OLEDs.

Abstract: A method of producing a display device includes: applying a UV curing resin, in a rectangular pattern with openings at four corners thereof, to a part outside of an effective display region of an adherend surface of either one of a front panel and a display panel; irradiating the UV curing resin with UV rays to effect tentative curing thereof, thereby forming a dam pattern; applying a UV curing resin to an adherend surface of the other of the front panel or the display panel; adhering the one panel and the other panel to each other; irradiating, with respect to the one panel and the other panel adhered to each other, four corner areas where the dam pattern has not been formed; and irradiating the one panel and the other panel adhered to each other with UV rays to effect full curing of the UV curing resins.

Abstract: A backlight unit and a liquid crystal display device having the same which may facilitate control of output light through a light guide plate, improve light concentration effect, and reduce moire. The backlight unit includes light sources generating light, a light guide plate guiding light through an incidence surface opposite the light sources, emitting the light through an emission surface, and having lower patterns of a prism shape formed on the lower surface of the light guide plate opposite the emission surface by inclined surfaces and sub-inclined surfaces, and at least one optical sheet stacked on the emission surface.

Abstract: A scanner module and an image scanning apparatus employing the same. The scanner module comprises an illuminator for illuminating light on an object to be scanned. The illuminator includes a light emitting diode, a light guide extending in a main scanning direction to change a direction of the light received from the light emitting diode, and at least one elastic member to elastically support at least one longitudinal end of the light guide. As the light guide is elastically supported by the elastic member, convex deformation or bowing of an emission face of the light guide due to thermal expansion can be reduced.

Abstract: Disclosed is a display device. The display device includes: a light source; an optical sheet into which light is incident from the light source; a display panel disposed on the optical sheet and including an effective display region and a non-effective display region around the effective display region; and a light conversion/light-blocking sheet corresponding to the non-effective display region.

Abstract: Disclosed is a light guiding valve apparatus including at least one transparent stepped waveguide optical valve for providing large area collimated illumination from localized light sources, and at least one further illumination source. A stepped waveguide may be a stepped structure, where the steps include extraction features hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality. Light from a separate illumination source may pass through the transparent stepped waveguide optical valve to provide at least one further additional illumination function.

Abstract: An illumination apparatus includes: a light guiding plate; a plurality of light-emitting elements disposed along a side-end surface of the light guiding plate that serves as a light-entry portion, each of the plurality of light-emitting elements having a light-emitting surface facing toward the side-end surface; a light source substrate that extends along the light-entry portion and has the plurality of light-emitting elements disposed thereon on one surface side that faces the light-entry portion; and a connector member, held on another surface side of the light source substrate that opposes the one surface side, for supplying power to the plurality of light-emitting elements.

Abstract: A flexible display apparatus is disclosed. In one aspect, the apparatus includes a flexible display panel including a first surface, a second surface facing the first surface, and a side surface that connects the first surface and the second surface. The apparatus also includes a passivation layer that is disposed on at least one of the first surface, the second surface, and the side surface of the display panel and includes a viscoelastic fluid and a vessel unit that contains the viscoelastic fluid therein.

Abstract: The frontlight unit is intended for enhancing illumination of a reflective display having pixels arranged in a matrix pattern and using monochromatic laser lights as light sources. The unit contains a network of light-distribution planar ridge waveguides with holograms arranged in a matrix pattern that corresponds to the matrix pattern of the reflective display when it is applied onto this display and emits light in the downward direction in the form of diverging beams that fall onto the pixels of the reflective display and in the upward direction onto mirrors wherefrom light is reflected also in the form of diverging beams onto the reflective display. Thus, all of the light reflected from the holograms of the light-distribution planar ridge waveguides is not lost and is used entirely for illumination of the reflective display. The mirrors occupy no more than 5% of the display surface area.

Abstract: A backlight module is provided with at least one light guide plate each including a plurality of openings; a white reflective film bent to conceal the at least one light guide plate and including a plurality of circuitries, a plurality of paired conductive terminals and a plurality of through holes; and at least one illumination unit disposed under the at least one light guide plate, each of the at least one illumination unit including a circuit member and a plurality of LEDs each disposed in one of the openings. The light emitted by the LEDs is directed to the at least one light guide plate and is further directed out of the white reflective film via the through holes.

Abstract: Disclosed herein is a light guide, which includes a light-receiving surface and a light-emitting surface. The light-emitting surface includes a plurality of gratings spaced apart from each other by a spacing interval. Each grating has a number of prisms extending in a predetermined direction. The predetermined direction of at least one grating is different from that of another grating. These gratings cooperate together to allow light in a wavelength range to transmit the gratings, and to restrict light in another wavelength range to transmit the gratings. An electrophoretic display apparatus switchable between black-white mode and color mode is disclosed as well.

Abstract: A bottom chassis includes a bottom portion having at least one deformation-preventing region therethrough and a sidewall portion connected to at least one side of the bottom portion. The bottom portion includes a first side extending along a first direction and a second side extending along a second direction crossing the first direction. The first direction is substantially perpendicular to a longitudinal direction of the at least one deformation-preventing region, and the second direction is substantially parallel to the longitudinal direction of the at least one deformation-preventing region.

Abstract: A backlight device includes a light guide plate including a plurality of edges and a light source bar. At least one of the plurality of edges includes a depression, the light source bar is positioned within the depression and includes a plurality of light sources, and the plurality of light sources emit light in different directions.

Abstract: According to one embodiment, a display device includes: a plurality of light guide units; a light source; a support substrate; a first electrode transmissive to light provided on the second major surface; a counter substrate opposed to the second major surface and provided away from the first electrode; a second electrode transmissive to light provided on a surface of the counter substrate opposed to the second major surface; and a plurality of spacers provided between the support substrate and the counter substrate and arranged between adjacent ones of the plurality of light guide units when projected onto a plane parallel to the first direction and the second direction. Optical characteristics in a region which is surrounded by adjacent ones of the spacers, the first electrode and the second electrode are changed by a voltage which is applied between the first electrode and the second electrode.

Abstract: A light guide element and a method for manufacturing the same, and a lighting fixture are described. The light guide element includes a light guide body, a plurality of first and second microstructures corresponding to each other. The light guide body includes a first and a second light-emitting surface opposite to and parallel to each other. The first and second microstructures are respectively disposed on the first and second light-emitting surfaces by a first arrangement rule based on a first datum line and a second arrangement rule based on a second datum line. The first datum line is different from the second datum line. In a normal direction of the first light-emitting surface, each second microstructure laps over the corresponding first microstructure in part. When an incident light enters the light guide body, a first and a second mesh patterns are respectively formed on the first and second light-emitting surfaces.

Abstract: A front light module, including: a light source; a light guide plate, having a first refractive index and having a side face close to the light source; and a plurality of pillar structures, having a second refractive index and being placed under the light guide plate, and the second refractive index is larger than or equal to the first refractive index.

Abstract: A surface light source device in which an optical sheet and light guide plate can be firmly fixed at low cost. The surface light source device has a light source, a frame that includes an accommodation part and at least a part of the accommodation part is surrounded by a sidewall, a light guide plate accommodated in the accommodation part, at least one optical sheet stacked on the light guide plate. A part of the light guide plate and a part of the optical sheet are fixed to the frame by filling a gap between a part of an outer surface of the light guide plate and an inner surface of the sidewall with an adhesive resin.

Abstract: A light unit for a display includes: a light guide plate, a plurality of light sources facing a side of the light guide plate and spaced apart from the light guide plate; and a buffering member between the light guide plate and the light source. The buffering member includes: spacing parts positioned respectively between adjacent light sources and contacting the light guide plate, and a blocking part connecting the plurality of spaced parts to each other and facing a side direction of each light source.

Abstract: A method for producing a light guide plate includes forming a light introduction part that introduces light incident through an end face, and forming a light guide plate body that has a thickness less than a maximum thickness of the light introduction part, forming the light guide plate body to be continuously joined to the light introduction part, and forming the light guide plate body so as to cause a light controller to output the incident light to an outside. The light guide plate producing method further includes a conveying step of conveying a resin sheet between a first die and a second die, which are disposed while facing each other, wherein a transfer surface is provided in at least one of surfaces facing each other in the first and second dies.

Abstract: An optical diffusing film and a LCD backlight using the same are provided. The optical diffusing film comprises a transparent substrate made of an optically transparent material with a refractive index of 1.4 to 1.8, and a diffusing coating with a refractive index of 1.4 to 1.7 disposed on an upper surface of the transparent substrate, wherein diffusing particles with a refractive index of 1.4 to 1.7 are distributed in the diffusing coating, and the diffusing particles are in close contact with each other, the diffusing coating has a thickness of ½ to ? of the largest particle size of the diffusing particles, and the coating density of the diffusing particles is 103 to 106 particles per square millimeter.

Abstract: Preferred embodiments utilize a plurality of optical channels to effectively aim the light emitted by a liquid crystal display (LCD). Embodiments may also change the nominal and range of viewing angles of light in two or three dimensions in order to confine the emitted light towards the intended observer.

Abstract: A light emitting device includes: a light source; an optical component including a light incident surface, the light incident surface facing the light source; and a wavelength conversion member provided between the light source and the light incident surface, the wavelength conversion member crossing a first region and extending to a second region outside the first region, the first region being surrounded by the light incident surface and light paths of light that is emitted from the light source and enters edges of the light incident surface.

Abstract: This is directed to a LED light fixture having a shaped light guide array with a CPC reflector for directing light off-axis, and methods for constructing the same. A LED light fixture includes a LED module providing light and an elongated light guide array placed adjacent to the LED module. The elongated light guide array can include a curved outer surface through which light is emitted into an environment. To further control the output of light, and to direct light off-axis, the light guide array can include a CPC reflector disposed around a boundary or periphery of the light guide array. The CPC reflector can be angled such that light is directed at angles above a cut-off angle by which the reflector is rotated about a focus.

Abstract: A light guide plate includes a light incident surface, a light output surface, a bottom surface opposite to the light output surface, and a plurality of dots formed on the bottom surface. Each dot includes a first curved surface, a second curved surface and two flat surfaces separately interconnecting the first curved surface and the second curved surface. The first curved surface is configured for perpendicularly reflecting light towards the light output surface. The second curved surface is configured for scattering and reflecting light back into the light guide plate. The two flat surfaces are configured for diverging light to lateral sides of an original path.

Abstract: The present invention provides a light guide plate and a manufacturing method thereof and a side-edge backlight module using the light guide plate. The light guide plate includes a plurality of reflective separation walls arranged therein. The reflective separation walls divide the light guide plate into a plurality of sections. The reflective separation walls have surfaces forming mirror surfaces. The light guide plate includes reflective separation walls respectively arranged between independent sections to have light traveling from an independent section toward the reflective separation wall reflected back into the independent section and thus confined within the independent section. Thus, brightness sectioning and independent control of sectionalized brightness of the light guide plate can be realized and improved light isolation result can be achieved.

Abstract: In a surface light source device, a light guide plate includes a light introduction part that traps the light emitted from a point light source and incident from a light incident surface, and a light guide plate body. The light introduction part includes an inclined surface inclined from a surface in a portion having a thickness larger than that of the light guide plate body toward an end of the surface of the light guide plate body. The light guide plate body includes a directivity conversion pattern located between an effective lighting region of the light guide plate body and the light introduction part. The directivity conversion pattern converts a directivity direction of the light from the light introduction part to the effective lighting region such that an angle formed by the directivity direction and a direction perpendicular to the light incident surface decreases when viewed from above.

Abstract: A patterned light emitting diode device includes a layer of light emitting material between an anode and a cathode. Further, a light-reflective layer is visible through a light-emission window of the patterned light emitting diode device. The light-reflective layer includes a pattern formed by local deformations of the light-reflective layer. The pattern may be generated via impinging condensed light beam which may enter via a rear-wall of the light-reflective layer, or via impinging the condensed light beam through the light-emission window on the light-reflective layer. The deformations may be generated without significantly altering the conductivity of the light-reflective layer. An effect of this patterned light emitting diode device is that the pattern remains clearly visible both during an on-state and during an off-state of the light emitting diode device.

Abstract: An illumination device includes a light guide plate, a light source, and a light modulation element. The light guide plate has convex portions extending in a direction parallel to a normal to a face opposed to the light source among side faces of the light guide plate, and the light source is configured of light source blocks. The light modulation element includes a pair of transparent substrates disposed separately and oppositely to each other, a plurality of first electrodes provided on a surface of one of the transparent substrates, and extending in a direction crossing an extending direction of the convex portions, a second electrode provided on a surface of the other transparent substrate, and a light modulation layer provided in a gap between the transparent substrates, and exhibiting a scattering property or a transparent property to light from the light source depending on magnitude of an electric field.

Abstract: An illumination apparatus includes a frame, an optical base plate, a light source and an optical film. The optical base plate is disposed in the frame and has a protrusion area at the center of the optical base plate. The protrusion area has at least a protrusion portion, which has at least a reflective surface. The reflective surface includes a plurality of inclined surfaces with different inclination angles. The light source is disposed in the frame and located adjacent to the periphery of the optical base plate. The light source is disposed corresponding to the reflective surface and has a plurality of light-emitting elements. Each light-emitting element has an optical axis direction, and the optical axis directions extend toward the protrusion area. The optical film is disposed at the frame, and the protrusion portion of the optical base plate protrudes toward the optical film.

Abstract: The present invention relates to a light emitting apparatus comprising at least one light emitting device and a support mechanism. The light emitting device includes a transparent substrate which light can pass through; at least one LED chip emitting light omni-directionally is disposed on one surface of the substrate, and the light emitted by the LED chip will penetrate into the substrate and at least partially emerge from another surface of the substrate. The support mechanism is coupled to the light emitting device; a first angle is formed between the substrate and the support mechanism. According to the present invention, the light emitting apparatus using LED chips can provide sufficient lighting intensity and uniform lighting performance.

Abstract: An illumination device capable of suppressing formation of a double image in three-dimensional display, and a display unit including the illumination device are provided. In a light modulation device bonded to a light guide plate, a scattering region that scatters light propagating within the light guide plate, and a transmissive region that allows light propagating within the light guide plate to pass therethrough are formed through control of an electric field. The scattering region scatters light to generate linear illumination light. A reflector is provided directly below the light modulation device. The reflector reflects light, which is part of the scattered light generated in the scattering region and is emitted to a reflector side, to generate reflected light to be focused directly below the scattering region.

Abstract: A backlight unit 24 includes a light guide plate 20, a heat dissipation member 36, a LED board 30, and LEDs 27 mounted on the LED board 30. The light guide plate 20 includes a light exit surface 20b on a front surface thereof, an opposite surface 10c on a rear surface thereof, a groove 20d in the opposite surface 20c, a light entrance surface 20d1 on one side surface in the groove 20d, and an opposite side surface 20d3 on another side surface in the groove 20d. The heat dissipation member 36 includes a portion in contact with the opposite side surface 20d3 and a portion on a side of one edge surface 20a of the light guide plate 20 with the one edge surface being opposite to the opposite side surface 20d3, the heat dissipation member 36 holding a part of the light guide plate 20 between the portions thereof. The light source board 30 is arranged on a surface that is opposite to a surface of the portion of the heat dissipation member 36 that is in contact with the opposite side surface 20d3.

Abstract: A backlight module, a liquid crystal display and a control method for driving the backlight source, the backlight module comprising an LED backlight source and a driving circuit, the LED backlight source comprising first LEDs each formed of a blue light chip, red phosphor powder and green phosphor powder, and second LEDs each formed of a blue light chip, a green light chip and red phosphor powder, and the driving circuit comprising driving circuit modules for driving the first LEDs and the second LEDs respectively. The liquid crystal display includes the above-mentioned backlight module and the display panel.

Abstract: A side-light type backlight module includes a front bezel, an optical film, a light guide plate, a box-shaped back cover, and a light source board. The optical film is positioned on the light guide plate. The back cover is connected to the front bezel, and the light guide plate is positioned in the back cover and integrated with the back cover by insert-molding. The back cover includes a bottom plate and a plurality of side walls perpendicular to the bottom plate, and the inner surfaces of the bottom plate and the plurality of side walls have high reflectivity. The bottom plate of the back cover defines a number of micro indentations.

Abstract: A display device 10 includes a display panel 11, a light source row 170, a light guide plate 16, a chassis 14 and a recess portion 134b that is fitted the chassis 14. The light guide plate 16 includes a positioning projection portion 160 that is fitted to the recess portion 134b. The positioning projection portion 160 projects outwardly from a side edge surface 16e of the light guide plate 16. The positioning projection portion 160 has a projection, and among rays of light emitted from an end light source 17X included in the light source row 170 and entering the light guide plate through a light entrance surface 16b, narrow-angle light L2 directed outward at an angle ? (a critical angle ?c) with respect to an optical axis L1 enters the projection. The positioning projection portion 160 includes a first edge surface 161 and a second edge surface 162. The first edge surface 161 is parallel to a side edge surface 16e and the narrow-angle light L2 reaches the first edge surface 161.

Abstract: An optical sheet (optical member) includes: a sheet-shaped base material 40 that is light-transmissive; an anisotropic light condenser that is formed on the light-receiving surface of the base material where light is received, the anisotropic light condenser having light condensing anisotropy such that incident light is condensed in a light condensing direction along the light-receiving surface whereas light is not condensed in a non-light condensing direction along the light-receiving surface, the non-light condensing direction being perpendicular to the light condensing direction; and an anisotropic light scatterer that is formed on the light-emitting surface from which light is emitted, the light-emitting surface being on a side of the base material opposite to the light-receiving surface of the base member, the anisotropic light scatterer scattering and emitting light from the anisotropic light condenser, and having light scattering anisotropy where light is greatly scattered in the light condensing direc

Abstract: A liquid crystal display device 10 includes LEDs 17, a light guide plate 16, a mating portion 33, a positioning portion 34, a heat dissipation member 19 on which the LEDs 17 are mounted, and a restriction portion 35. The light guide plate 16 includes a peripheral surface facing the LEDs 17 and configured as a light entrance surface 16b through which light from the LEDs 17 enters and a plate surface configured as a light exit surface 16a through which light exits. The mating portion 33 protrudes from a portion of a peripheral surface 16e of the light guide plate 16 adjacent to the light entrance surface 16b or is a recess formed in the peripheral surface 16e adjacent to the light entrance surface 16b. The positioning portion 34 is fitted with the mating portion 33 as a protrusion and recess fitting such that the light guide plate 16 is positioned with respect to an arrangement direction of the LEDs 17 and the light guide plate 16.

Abstract: The disclosure provides an electronic paper display. The electronic paper display includes an electronic paper panel. A light guide plate is disposed on the electronic paper panel. The light guide plate has a first surface and a second surface opposite to the first surface. A conductive pattern structural layer is disposed on the light guide plate. A light source is disposed on a side of the light guide plate. The first surface of the light guide plate is a patterned surface. A light generated by the light source is reflected or scattered to the electronic paper panel by the patterned surface.

Abstract: Electronic device backlight structures may be used to provide backlight for a display. The backlight structures may include a light source such as an array of light-emitting diodes. Light from the light source may be coupled into an edge of a light guide plate. The light guide plate may distribute the light laterally across the display. The light guide plate and other display structures may be mounted in an electronic device housing such as a metal housing having metal housing walls. A gap may separate an edge of the light guide plate from the metal housing walls. Mismatch between the coefficients of thermal expansion of the housing and the light guide plate may be minimized to minimize the size of the gap. The light guide plate may be formed from a layer of glass with printed light-scattering structures or from polymer with a filler and molded or printed light-scattering structures.