Abstract: A portable electronic device comprises a housing, a display protecting lens, a display and a light guiding element. The housing has an opening and a trough defined therethrough. The display protecting lens is mounted in the opening of the housing. The display is mounted with the first light guiding element in the housing. The light guiding element is accommodated in the trough. The portable electronic device further includes a light guiding member located between the display protecting lens and the display, a portion of the light emitted by the display is guided by the light guiding member and then transmitted to the light guiding element.

Abstract: A unitary light guide plate includes a light exit plane, a thick portion located substantially on a center portion of the light exit plane, thin end portions formed on both sides of the thick portion, a half portion of a parallel groove formed on a backside of the light exit plane to accommodate linearly arranged light sources, inclined back portions arranged so as to become thinner from the thick portion to the thin end portions, and scattering means for scattering light entering from the light sources accommodated in the parallel groove into the thin end portions and propagated through the inclined back portions toward the thick portion. A light guide plate unit has two or more of the unitary light guide plates coupled together in such a way that respective light exit planes are arranged to form a same plane.

Abstract: A portable electronic device comprises a housing, a first light guiding member, a display and a second light guiding member. The housing has a main body, an opening defined through the main body, a frame protrudes from the main body surrounding the opening, and a trough is defined through the frame. The first light guiding member has a main body mounted in the opening of the housing. The display is mounted with the first light guiding member in the housing. The second light guiding member is accommodated in the trough. The first light guiding member further includes a peripheral wall protruding from the main body thereof, the peripheral wall is located between the main body of the first light guiding member and the display, and a passage is defined between the peripheral wall and the second light guiding member.

Abstract: The invention relates to a light-guide (100), an illumination system (200), a luminaire (400), a scanning backlight system (200) and a display device. The light-guide comprises a plurality of light-guide segments (10), each light-guide segment being substantially optically separated from a neighboring light-guide segment. Each light-guide segment comprises light-extraction means (40) for extracting at least part of the distributed light via a front wall (20) to illuminate in operation a light output window (220). A distance (D) between the front wall and the light output window being smaller at a center (C) of the front wall compared to a predefined edge (50) of the front wall. The predefined edge of the front wall is an edge at which the light-guide segment is arranged adjacent to the neighboring light-guide segment.

Abstract: A backlight unit may be provided that includes a substrate, light sources, a light guide plate, at least one reflecting member, and an optical sheet. The light sources may be on the substrate. The light guide plate may include a light incident part having a light incident surface to which streaks of light respectively emitted from the light sources are laterally incident, and a light emitting part emitting the incident streaks of light upward. The reflecting member may be disposed on a lower surface of the light guide plate, and may reflect the incident light. The optical sheet may be disposed above the light guide plate. The reflecting member may include a first region having a first reflectance and a second region having a second reflectance.

Abstract: A backlight module includes a light guide, a mixing light guide plate, and a plurality of light sources. The first light guide comprises a first side surface. The mixing light guide plate comprises an incident surface with anomalous surface and an emergent surface with fog surface. The mixing light guide plate is set on the first side surface. A plurality of light sources disposed corresponding to the incident surface, with light emitted there from and entering the mixing light guide plate through the incident surface then exits the mixing light guide plate through the emergent surface, finally, entering the light guide through the first side surface.

Abstract: A local dimming side-lighting light guide plate and a local dimming side-lighting backlight module are disclosed. The light guide plate includes a light guide plate body and a first medium, wherein the refractive index of the light guide plate body is greater than the refractive index of the first medium. The light guide plate body includes a plurality of gaps parallel with each other, wherein the first medium is disposed in those gaps. The light guide plate body further includes a light entrance end, wherein the gaps extend in directions both away and toward the light entrance end. Furthermore, an active region is defined on the light guide plate body and the gaps are located in the active region.

Abstract: A light guide plate includes a light introducing portion which is positioned facing a point light source and which confines light, and a light guide plate body which is thinner than a maximum thickness of the light introducing portion and which causes a light exit means to emit the confined light outward. The light introducing portion has an inclined face which is inclined from a portion having the maximum thickness to a surface of the light guide plate body. The inclined face includes a directivity converting pattern for converting a directional characteristic of the light that has entered the light introducing portion. The directivity converting pattern's structure includes a plurality of V-shaped grooves. An inscribed circle of the directivity converting pattern passes through both ends of a light exit window of the point light source.

Abstract: The invention relates to a light guide (10) for illuminating a light output window (120) of an illumination system (100), the illumination system, a backlighting system (100) and a display device (200). The light guide comprises a first light guide part (10A) comprising a first light guide extension (70A) extending from a first edge wall (40A) of the first light guide part (10A), and comprises a second light guide part (10B) comprising a second light guide extension (70B) extending from a second edge wall (40B) of the second light guide part (10B), the first light guide extension (70A) being configured for positioning a first light input window (80A) at a side of the second light guide part (10?) facing a rear wall (30B) of the second light guide part (10B), the second light guide extension (70B) being configured for positioning a second light input window (80B) at a side of the first light guide part (10A) facing the rear wall (30A) of the first light guide part.

Abstract: This invention has an object to provide an illumination device capable of selecting freely the contour of the light emitting portions and the light distribution feature according to the shape of the institution installed with this device and to user's desires, suppressing light brightness differences as well as light intensity profile differences due to viewing angle upon improving the light outputting efficiency, and being manufactured with lower costs. The invented illumination device includes plural light guide plates formed with reflection dots reflecting a shape of processing dots by pressing the matrix shaped processing dots provided at an ultrasound processing horn, an LED light source for rendering LED light enter into the light guide plates, and a holding member for holding the LED light source, wherein the plural light guide plates are arranged to have a major surface having the reflection dots to be angled differently.

Abstract: An apparatus for providing a multicolored illuminator is disclosed. In one embodiment, the apparatus comprises a first sheet comprising a plurality of columnar illuminators stacked side by side, and a plurality of colored light sources placed along an edge of the first sheet. The plurality of columnar illuminators diffuse light generated by the plurality of colored light sources. The light emanates in a predetermined pattern.

Abstract: Disclosed are a mosaic light guide plate structure and a backlight module. The mosaic light guide plate structure comprises at least two light guide plate units. Each of the light guide plate units comprises a first tilt face and a second tilt face with cooperation of at least one light-emitting unit. The first tilt face is positioned at a side of the light guide plate unit. The second tilt face is oppositely positioned to the first tilt face at the other side. The at least one light-emitting unit is positioned under the first tilt face. The present invention assembles adjacent tilt faces to form the light guide plate and changes the direction of light with the tilt faces for solving issues of length limitation for the light guide plate. Accordingly, the mosaic light guide plate structure of the present invention can be suitable for large-scale LCDs and realize local dimming.

Abstract: The present invention discloses a multi-level light guide plate (LGP) and a liquid crystal display (LCD) module. The LGP is divided into multiple sections sequentially connected with each other in a direction, and at least one light bar is disposed at an outward side of each section of said multiple sections. The LCD module has the multi-level LGP, which is located between a liquid crystal panel and a back plate. The multi-level LGP provided by the present invention can achieve local dimming for multiple sections and ensure that light rays of the respective sections will not influence each other.

Abstract: A light guide plate template which comprises a frame and a plurality of light guide plate building blocks which are arranged in the frame to form an integral light guide plate, each of the light guide plate building blocks has dots on its bottom surface to make it have a predetermined light-emitting efficiency.

Abstract: An LED back-light unit and other devices using the LED back-light unit are discussed. According to one embodiment, an LED back-light unit includes a light guide portion that includes a light guide plate and a reflection plate coupled to the light guide plate, wherein the light guide plate has a light input part and a first connection part, and wherein the reflection plate has a second connection part connected to the first connection part, and a light source including at least one light emitting diode, the light source emitting light toward the light guide portion.

Abstract: A metallic panel assembly having multilayer arrays of micropores includes a backlight module and a panel body. The backlight module is constituted of a first and a second light-guiding plate. First and second light-guiding microstructures are provided on the first and second light-guiding plates. A first and a second set of light-emitting units are disposed on one end of the first and second light-guiding plates, respectively. A first and a second shielding unit are disposed on the first and second light-guiding plates and the first and second sets of light-emitting units respectively. The panel body is disposed on one side surface of the first light-guiding plate. The panel body has thereon a plurality of hollowed portions with the hollowed portions encircling a key body. The key body has thereon a plurality of micropores. The plurality of micropores is arranged to form a pattern of each key body.

Abstract: The novel structure of a backlight unit using color-scan backlight drive which structure can relieve the color mixture problem is provided. A backlight unit including: a light guide plate including (j+1) (j is a natural number) reflective walls that are columns having height in a direction perpendicular to a bottom face and being extended in one direction parallel to the bottom face and that are provided in parallel; an r-th columnar transparent layer provided in a region sandwiched between an r-th (r is a natural number, 1?r?j) reflective wall and an (r+1)-th reflective wall of the (j+1) reflective walls; and an r-th light source provided on a side surface of the light guide plate to let light into the r-th transparent layer.

Abstract: Provided are solid state lighting devices that include multiple solid state light emitters that are configured to emit light and a multiplane light diffuser including a first diffusion plane and a second diffusion plane that are separated by a gap, the multiplane light diffuser including first side that is configured to receive the light emitted from the solid state light emitters and a second side that is configured to transmit diffused light.

Abstract: A scanning backlight for a stereoscopic 3D liquid crystal display apparatus includes a light guide having a first side and a second side opposite the first side, and having a first surface extending between the first and second sides and a second surface opposite the first surface. The first surface substantially re-directs light and the second surface substantially transmits light. A plurality of first light sources are arranged along the first side of the light guide for transmitting light into the light guide from the first side and a plurality of second light sources are arranged along the second side of the light guide for transmitting light into the light guide from the second side.

Abstract: In one embodiment of this invention, a light filtering directional control element provides increased spatial color or luminance uniformity and desired angular color uniformity and customizable light re-direction properties. In one embodiment of this invention, a light filtering directional control element directs light off-axis and focuses light in the far field. In a further embodiment of this invention a light fixture comprising the light filtering collimation element has a spatial luminance uniformity greater than 80%, a color uniformity ?u?v? of less than 0.04 and a short mixing distance. In a further embodiment, the light fixture incorporating the element has electronically or manually configurable light output profile.

Abstract: Disclosed herein is a light guide plate including: a side end face on which light from a light source is incident; an incoming part which forms the side end face and by which the light coming in through the side end face is guided; a principal surface which is formed in a direction perpendicular to the side end face and through which the light guided by the incoming part is let go out; and a main body part which forms the principal surface and which is continuous with the incoming part on the opposite side from the side end face.

Abstract: In one aspect, a light-emitting surface includes a plurality of discrete, substantially flat light-emitting illumination devices arranged in a tiled configuration. Each device has a light-emitting area and an unilluminated area, the light-emitting area of a first device occluding at least a portion of the unilluminated area of a second, adjacent device.

Abstract: A light guide display includes a printed overlay layer, a first light guide layer, and a second light guide layer. The printed overlay layer includes an input region with a symbol that is at least partially translucent. The first light guide layer is disposed on a back side of the printed overlay layer to illuminate the symbol of the printed overlay layer in response to illumination of the first light guide layer. The second light guide layer is disposed on a front side of the printed overlay layer, opposite the first light guide layer. The second light guide layer includes a separate symbol that is distinct from the symbol of the printed overlay layer. The second light guide layer illuminates the separate symbol of the second light guide layer in response to illumination of the second light guide layer.

Abstract: A light guide of the tapered-waveguide type includes an input slab (30) for expanding a projected image between an input end and an output end, and an output slab (10) arranged to receive rays from the said output end, and to emit them at a point on its face that corresponds to the angle at which the ray is received. The input slab and output waveguide are matched so that all rays injected into the input end undergo the same number of reflections before leaving the output surface. With the invention the input slab (30) is itself tapered slightly towards the output waveguide. This means that input and output waveguides can be made the same length, in the direction of ray travel, and can therefore be folded over each other with no wasted space.

Abstract: An illumination device having an optical waveguide stage to which is optically coupled a light-projecting stage. The illumination device accepts light from a small isotropic light source such as a light emitting diode or a bulb coupled to the optical waveguide stage. The illumination device spreads the light over a wide area while also collimating it to form a beam. The light-projecting stage and the optical waveguide stage are made of thin slabs of optically transmissive material.

Abstract: A light guide with optics accurately controls the light exiting the guide. The device achieves accurate control of the reflected light by extracting light from a limited area of the light guide. The configuration of the reflectors used for the selective extraction determines the nature of the output light. The reflectors are preferably located on a side of the light guide opposite to an output side of the light guide.

Abstract: A light pipe assembly includes a lamp assembly and a light pipe. The lamp assembly has a housing that holds a light source configured to emit light. The light pipe is elongated between an attachment end and an opposing distal end. The attachment end is received in the housing of the lamp assembly. The light pipe receives light emitted by the light source. Additionally, the light pipe includes surface elements that are configured to permit the light to emanate from the light pipe between the attachment and distal ends. The surface elements are arranged in a pattern that provides a predetermined distribution of light emanating from the light pipe.

Abstract: A luminaire includes a waveguide having first and second opposing ends and first and second opposing sides between the first and second ends. The waveguide is configured to totally internally reflect light propagating through the waveguide in a first direction and direct light propagating through the waveguide in a second direction through at least one of the first and second sides. A reflective body is coupled to the second end of the waveguide and configured to reflect light propagating towards the second end of the waveguide such that the light propagates towards the first end of the waveguide.

Abstract: A double-sided light-emitting light guide plate assembly, and a method for manufacturing the same are disclosed, wherein a reflector is arranged between a first light guide plate and a second light guide plate. When light is emitted from a light source, it enters into the first light guide plate and the second light guide plate from one lateral side of the double-sided light-emitting light guide plate assembly. Through the reflector having two opposite reflective surface, the light is output from the first light output surface of the first light guide plate, and the second light output surface of the second light guide plate, such that the light guide plate assembly of the present invention can emit light from its two opposite surfaces.

Abstract: A light-emitting strip structure with light guiding effect, which is a hollow light guide strip body made of transparent material. The light guide strip body is formed with at least one axial internal chamber. Recessed/raised sections are formed on a wall of the internal chamber for changing light path. When a light source projects light into the internal chamber, the recessed/raised sections will deflect or reflect the projected light, whereby the light guide strip body can emit light outward. A color bar or a light reflection strip is implanted in the internal chamber. In addition, a light absorption material is sprayed on the wall of the internal chamber or a photosensitive gas is filled in the internal chamber. Accordingly, the light guide strip body can emit colorful light in various patterns so as to provide enhanced decorative or warning effect. The light guide strip body is flexible and antishock.

Abstract: A planar light source device of the present invention includes a light guide plate and a plurality of light-emitting diodes. The light guide plate includes a plurality of plate-form light guide members whose side surfaces are formed in a serrated shape. The serrated-shaped side surfaces of adjacent light guide members are connected in a planar direction so as to be engaged with each other. The plurality of light-emitting diodes emit light toward each of the light guide members. With this configuration, it is possible to securely prevent irregularity of brightness, when changing the luminance in the display screen in unit of blocks.

Abstract: A linear light guiding module is provided, which includes a linear light guiding body, a plurality of light emitting bodies, a plurality of heat sinks, and a plurality of fans. With the linear light guiding body, the light emitting bodies, and the heat sinks linearly arranged, or with the fans further integrated, the linear light guiding module of the present invention has a small size and an effective heat-dissipation effect. Since only one linear light guiding module needs to be disposed on one side of a light guide plate, the linear light guiding module can be used in large-sized liquid crystal display panels. Moreover, the number of the linear light guiding modules used is decreased while the requirements for high brightness and brightness uniformity can still be met, so the cost can be reduced.

Abstract: A multi-segmented light guide for keypad and display apparatus has been disclosed. The light guide film may comprise a plurality of light segments configured to transmit light independently. The boundaries of the light segments may be defined by a plurality of micro-optic structures. The micro-optic structures may have a height at least half the thickness of the light guide.

Abstract: Disclosed are apparatus and methods for illuminating a display. In certain embodiments, the illumination apparatus includes a light guide that receives light from a light generator along an edge of the light guide and directs the received light via light extractor features (e.g., grooves) towards a display. The light guide includes at least two sets of light extractor features that are rotated with respect to each other so as to reduce a shadowing effect on the display when the display is viewed from within a specific range of viewing angles. In further embodiments, the spacing or orientation of each or one of the extractor feature sets may also be adjusted so that other visual artifacts, such as a Moiré effect, are reduced.

Abstract: A backlight assembly includes first and second backlight units independently operating based on driving modes, and a light blocking member interposed between the first and second backlight units. The first backlight assembly includes a first light source generating and supplying a first light to a main display part of a display panel in a main mode and turned-off in a sub mode. The second backlight assembly includes a second light source generating and supplying a second light having different color from the first light to a sub display part of the display panel in a main mode and a sub mode.

Abstract: A light guide member of the present invention is made of a light transmitting material. The light guide includes a light emitting surface 13, which extends in direction x and includes a lens surface 31 for converging light in direction y. The light guide also includes a light incident surface 11 provided at one of the ends spaced from each other in the direction x. The light emitting surface 13 includes a transitional region 13a adjacent to the light incident surface 11, where the transitional region includes the lens surface 31 and a round pillar surface 32. In the transitional region 13a, the lens surface 31 becomes less dominant in area as proceeding in the direction x toward the light incident surface 11.

Abstract: A light guide board comprises: a buffer layer (5), light guide plates (4) having a first surface injection molded on the buffer layer, a second surface having pressing points (1) with a buffer function, and a light scattering portion (3). A light guide key board includes the light guide board.

Abstract: A light guide device is provided in an embodiment of the invention. The light guide device comprises a light guide plate and a light source provided on a side surface of the light guide plate. A light guide strip is provided on a side surface of the light guide plate intersecting with the side surface provided with the light source. A side surface of the light guide strip facing the light guide plate is a light exit surface of the light guide strip, a side surface of the light guide strip opposite to the light exit surface is a reflective surface of the light guide strip, and an end surface of the light guide strip adjacent to the light source is a light entrance surface of the light guide strip.

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 light guiding assembly is provided. The light guiding assembly includes a first light guiding plate, a second light guiding plate, and a shielding plate. The second light guiding plate is located adjacent to the first light guiding plate. The shielding plate is positioned between the first light guiding plate and the second light guiding plate, to prevent light guided by the first light guiding plate and light guided by the second light guiding plate from mixing.

Abstract: A display device (100) includes a plurality of display panels having a display region (31a, 31b) and a frame region (30a, 30b). The plurality of display panels include first and second display panels adjoining each other (10a, 10b); the frame region (30a) of the first display panel is overlapped by a side face (18b) of the second display panel so that an angle ? defined by viewer-side surfaces (17a, 17b) is more than 0° but less than 180°; first and second light guide elements (20a, 20b) are disposed on the viewer's side of peripheral display regions (32a, 32b); the light guide elements have an incident face, an outgoing face, and a plurality of light guiding portions; the distance between the incident face and the outgoing face increases away from the peripheral display region and toward the frame region; the volume of the first light guide element is larger than the volume of the second light guide element; and the outgoing faces of the first and second light guide elements are covered by a functional film.

Abstract: A surface light source device improves the quality of illumination without producing dark lines between neighboring light guide plates even when a plurality of light guide plates are used in combination. This surface light source device is formed by combining a plurality of LED/light guide plate units, and light guide plate (4) has: light emitting area (8) of a square shape from a plan view; extended area (10) which is positioned extending outward from a pair of neighboring sides (8a) and (8b) in four sides (8a) to (8d) defining the outer rim of this light emitting area (8); and incidence surface area (11) on which light from LED (6) is incident. Each light guide plate (4) has a symmetrical shape with respect to one of the diagonal lines of light emitting area (8), and is combined by making its orientation uniform in the same direction.

Abstract: A first light guide plate of a light-emitting element is formed by a plurality of strip-shaped light guide bodies arranged in parallel with each other, where each strip-shaped light guide body has a light incident surface on which light from a light source is incident, and a light-emitting surface from which light from the light incident surface is emitted, and on which a plurality of prisms are formed. A second light guide plate of the light-emitting element is positioned so as to face the light-emitting surface side of the first light guide plate, has prisms formed on a surface of the first light guide plate side in a shape that meshes with a shape of the prisms of the first light guide plate, and is formed by a fewer number of light guide bodies arranged in parallel than the strip-shaped light guide bodies.

Abstract: An object of the present invention is to provide a liquid crystal display device having a light guide plate that is capable of providing improved liquid crystal display performance without generating a striped image. The liquid crystal display device includes a light guide plate, which illuminates a liquid crystal panel from its rear surface, and light sources, which shed a light ray on the light guide plate. The rear surface of the light guide plate is separated into a plurality of rear surface divisions by concave grooves. The light sources can adjust the brightness of each rear surface division. The display performance of the liquid crystal panel is improved by individually managing a plurality of regions of the liquid crystal panel, which correspond to the rear surface divisions, and darkening a rear surface division that corresponds to a region where the black color is predominant.

Abstract: A planar light-emitting device has a plurality of light-emitting units each having a lightguide plate having an upper surface as a light-exiting surface, a lower surface opposite to the light-exiting surface, a peripheral side surface extending between the respective peripheral edges of the upper surface and the lower surface, and a light entrance surface defined by a part of the peripheral side surface. Each light-emitting unit further has a light-emitting set adjacent to the light entrance surface to emit light into the lightguide plate through the light entrance surface, and a support member that fixedly supports the light source and the lightguide plate. The light-emitting units are arranged side by side so that the light-exiting or upper surfaces of their respective lightguide plates are substantially flush with each other.

Abstract: An electronic device is provided. The electronic device includes a light source, a light guide, a display unit and a frame. The light source provides a light beam. The light guide includes a light emitting surface and a light entering surface, wherein the light beam enters the light guide through the light entering surface, and is emitted from the light emitting surface. The display unit is corresponding to the light emitting surface, wherein the light beam is partially emitted from the light guide, passes through the display unit to display an image. The frame covers the display unit and the light guide, wherein the frame has a display portion and a transparent portion, the image is displayed in the display portion, and the light beam is partially emitted from the light guide toward the transparent portion and passes through the transparent portion.

Abstract: A projecting part (4) is provided on at least one of a reflection sheet (3), which is provided so as to cover a surface facing an emission surface (1c) of a light guide (1), and a light guide section (1a) of the light guide (1) so that a space is secured at least partially between the light guide section (1a) and the reflection sheet (3). This makes it possible to provide an illumination device which (i) has a reduce thickness, (ii) achieves high light use efficiency, and (iii) can carry out a local dimming.

Abstract: A lighting device includes a plurality of light-transmitting guide plates 1, 2, 3 laminated in at least three layers and a plurality of light emitting elements 4, 5, 6 arranged so as to oppose to respective lateral sides of the light-transmitting guide plates 1, 2, 3 to allow luminance flux in different color with respect to each light-transmitting guide plate to be incident on the corresponding light-transmitting guide plate. Each of the light-transmitting guide plates 1, 2, 3 has a plurality of reflecting surfaces 7, 8, 9 formed on the backside of the plate to change a propagation direction of the luminance flux propagated in the each light-transmitting guide plate, allowing the luminance flux, of which propagation direction has been changed by the reflecting surfaces 7, 8, 9, to be emitted from the front side of the each light-transmitting guide plates.

Abstract: In one aspect, a planar illumination area includes two light-guide elements, each with an out-coupling region. At least a portion of each out-coupling region overlaps with at least a portion of the other. The overlapping region emits a substantially uniform light output power.

Abstract: A method of manufacturing non-backlighted illuminating keypad includes preparing a transparent plastic thin plate; forming a plurality of keycaps on a surface the plastic thin plate; forming a light gathering layer on another surface of the plastic thin plate opposite to the keycaps; attaching the plastic thin plate onto an electronic ink layer; and attaching an first elastic layer on the electronic ink layer.