Abstract: A light guide plate configured to guide light which is incident on an incidence surface of a plate-shaped member so as to be emitted from an emission surface includes: a light amount adjusting unit configured to adjust the amount of light emitted from an excessive light amount region of the emission surface, wherein the light amount adjusting unit is provided on one of the incidence surface and the emission surface, corresponding to the excessive light amount region.

Abstract: An illumination apparatus includes a light source that emits light, a light guide member that has a base end surface onto which the light emitted from the light source is incident and a tip surface which is an opposite end surface to the base end surface, and guides the light from the base end surface towards the tip surface, and an attachment member that has a light shield property and an opening corresponding to a shape of the light guide member and accommodates the light guide member in the opening. The light guide member is curved so that a distance between the light guide member and the opening is gradually increased towards the tip surface-side in a longitudinal direction of the light guide member.

Abstract: A light guide plate (2) in the planar illumination device (1) in one example of the present invention has: first connecting surfaces (21) that respectively connect adjacent light-output surfaces; and second connecting surfaces (11) that respectively connect adjacent opposite surfaces.

Abstract: Light directing films employing at least two layers forming a continuous corrugated boundary between major surfaces of the film. Light received by a major surface of the film is internally redirected by interacting with the facets of the corrugated inter-layer boundary and is emitted from the opposing major surface towards a new propagation direction which is different from the original propagation direction by up to 90 degrees. Light directing films may have additional layers and/or layer boundaries which may provide additional bend angles to light rays or otherwise diffuse the emitted beam.

Abstract: A light source module includes a plurality of light emitting units, and each of the light emitting units includes a reflection plate, a light extraction plate, a sidewall structure, a light source, and a diffusion plate. The light extraction plate has a plurality of first holes, and the light extraction plate and the reflection plate are opposite to each other. The sidewall structure having a plurality of second holes is located between the reflection plate and the light extraction plate, and the reflection plate, the light extraction plate, and the sidewall structure together constitute a first light guiding cavity. The light source is located in the first light guiding cavity and adjoins the sidewall structure. The diffusion plate is located above the light extraction plate, and a second light guiding cavity is formed between the light extraction plate and the diffusion plate.

Abstract: This disclosure provides systems, methods and apparatus for an illumination system. In one aspect, the illumination system is a light guide that includes spaced-apart regions of medium containing diffractive features. For example, the medium may include holographic medium having holograms that are configured to redirect light, propagating through the light guide, out of the light guide. The spaces between the spaced-apart regions of media may be filled with a material having a lower refractive index than the light guide, thereby functioning as a reflective cladding in those spaces.

Abstract: The present invention discloses a LED backlight module, which comprises a backplane; a side-type backlight source, which comprises a backlight source substrate and multiple light emitting diodes provided on the backlight light source substrate; a reflector, which is provided on the backplane; multiple light guides provided on the reflector in parallel, each light guide being provided with at least one light-incident surface and one light-emitting surface, the light-incident surface of the light guide being opposite to the LED; diffusers provided on the multiple light guides, which are opposite to the light-emitting surface of the light guide; and an optical film set, which is located above the diffuser. The embodiment of the present invention further discloses the corresponding liquid crystal display. According to the embodiment of the present invention, it can save the amount of LEDs, which is beneficial for the narrow frame of the liquid crystal display panel.

Abstract: An autostereoscopic display comprising a temporally multiplexed display arranged to provide viewing windows in a range around 45 degrees to achieve landscape and portrait viewing in cooperation with an observer tracking system. The temporally multiplexed display may comprise a stepped waveguide imaging directional backlight.

Abstract: A time sequence energy saving color splitting system includes at least one light source provided on a surface of the guide module and composed of multiple light illuminating elements capable of illuminating light beams with different wavelengths and arranged in array, the at least one light source being able to illuminate light beams with specific wavelengths in two time sequences and entering the guide module and a color splitting module provided on the guide module, comprised of a first surface and a second surface, wherein the first surface is a collar structure per unit cycle and the second surface is a non-spherical structure per unit cycle, the non-spherical structure per unit cycle corresponds to the collar structure every two unit cycles.

Abstract: A lighting device includes an LED, a light guiding member, and a mask member. The light guiding member has a cut to provide a directivity to light emitted from the LED. The cut is provided at a position corresponding to the LED on an emission surface side of the light guiding member. The mask member is disposed on an emission surface side of the cut to block the light emitted from the LED.

Abstract: A lighting assembly includes a light guide having opposed major surfaces between which light propagates by total internal reflection, a light input edge, and two light output regions of different optical characteristics and at least one of which is associated with a corresponding one of the major surfaces. The lighting assembly also includes a light source located adjacent the light input edge. The light source and the light guide variably positionable relative to one another to vary a location on the light input edge at which the light is input to the light guide such that the light is emitted from the light guide selectively apportioned between the light output regions so that a characteristic of the light output from the lighting assembly is modified based on the optical characteristics associated with the light output regions and the relative positioning of the light source and the light guide.

Abstract: A light emitting device of the present invention comprises a light source and an optical filter and is characterized by that it further comprises a first light guiding member of a taper shape whose cross-sectional area is gradually increased and a second light guiding member whose flare angle is smaller than that of the taper shape of the first light guiding member, wherein the length of the second light guiding member is smaller than the first light guiding member.

Abstract: A backlight module includes a back plate, an optical film, a light source and optical microstructures. The back plate has a supporting surface. The optical film is disposed on the back plate. The supporting surface and the optical film have a gap therebetween. The light source disposed on the supporting surface is adapted to emit light toward the optical microstructures. Each optical microstructure includes first and second transparent structures. The first transparent structure connected to the supporting surface has front and rear ends. The front end facing toward the light source has a first concave surface. The rear end facing away from the light source has a convex surface. The second transparent structure connected to the first transparent structure has front and rear surfaces tilted in relative to the supporting surface. The front surface faces toward the light source, and the rear surface faces away from the light source.

Abstract: A backlight assembly includes a first light source part including a plurality of first light sources configured to generate light having a first color and a plurality of second light sources configured to generate light having a second color different from the first color, and a light guiding plate including a first incident surface and an exiting surface adjacent to the first incident surface. The exiting surface is configured to allow the light to pass therethrough. The exiting surface includes a first peripheral portion configured to absorb the light having the second color and a central portion adjacent to the first peripheral portion and configured to allow the light to pass therethrough. The first and second light sources are alternately located.

Abstract: A light emitting device includes a support having an interstice and at least one LED located in the interstice and at least one of a waveguide or an optical launch having a transparent material encapsulating the at least one LED located in the interstice.

Abstract: A light guide plate includes a main body and a number of micro protrusions. The main body includes a light emitting surface, a bottom surface, and a light incident surface. The bottom surface is opposite to the light emitting surface. The light incident surface connects the light emitting surface and the bottom surface. The protrusions are randomly positioned on the light emitting surface, and are used for reflecting light rays towards random directions.

Abstract: The present invention provides a side-edge backlight module, which includes a backplane, a backlight source arranged inside the backplane, and a light guide plate arranged inside the backplane. The backplane and the backlight source receive an aluminum-extruded heat sink arranged therebetween. The aluminum-extruded heat sink includes a first mounting section and a second mounting section perpendicularly connected to the first mounting section. The backlight source is mounted on the first mounting section. The first mounting section forms a slope surface at a location close to the second mounting section. The slope surface is arranged to extend from connection of the first and second mounting sections toward the backlight source. The side-edge backlight module forms a slope surface at a lower end of the first mounting section of the aluminum-extruded heat sink to eliminate potential interference issue of assembling occurring in the known techniques.

Abstract: A light source unit, comprising: a light guide plate; a light source facing to a peripheral surface of the light guide plate; and a reflection part reflecting light emitted from one surface of the light guide plate, wherein the reflection part comprises: an elongated portion, which is positioned at an outside of an edge of the light guide plate, being elongated in a direction crossing the one surface; and a protrusion portion, which is located at a position of the elongated portion that is away from the one surface, protruding from the position to the one surface, wherein the one surface side of the light source is covered with the protrusion portion.

Abstract: A luminous flux control member (200) of the present invention has: a light input surface (210); total reflection surfaces (220), which are formed at positions facing a light emitting element with the light input surface (210) therebetween; two light guide sections (230), which are formed such that respective cross-sectional areas thereof are reduced in the direction to be away from the light input surface (210) and the total reflection surface (220), said light guide sections being formed at facing positions with the light input surface (210) and the total reflection surface (220) therebetween; and two light output surfaces (240), which are formed on the outer surfaces of the two light guide sections (230), respectively.

Abstract: A backlight module and a liquid crystal display are described. The backlight module includes a light guide plate, a light source and a prism sheet. The light guide plate includes a light-emitting surface, a light-incident surface and an axis. The light-incident surface is connected to the light-emitting surface. The axis is normal to the light-incident surface. The light source emits light towards the light-incident surface. The prism sheet is disposed on the light guide plate and includes a first optical surface and a plurality of prism structures which are disposed on the first optical surface. Each of the prism structures has a first surface and a second surface. The first surface and the second surface are connected to form a ridge. The ridge is vertical to the light-incident surface, or an angle included between the ridge and the axis is smaller than or equal to 20 degrees.

Abstract: A lighting device may include a reflector, which can be illuminated by means of at least one light source, in particular light emitting diode, a lens disposed downstream of the reflector, and an aperture interposed between the reflector and the lens. The aperture is designed and arranged to block one part of a light reflected by the reflector onto the aperture and to direct another part of the light reflected by the reflector onto the aperture onto the lens.

Abstract: The present invention provides a side-edge backlight module, which includes a backplane, a backlight source arranged inside the backplane, and a light guide plate arranged inside the backplane. The backplane includes a main body and a bracket connected to the main body. The main body is made of a plastic material and the bracket is made of a metal material. The backlight source is mounted to the bracket. The side-edge backlight module of the present invention adopts a backplane that is composed of a plastic main body and a metal bracket and this helps making the side-edge backlight module light-weighted provides multiple choices of the raw materials. Further, the main body directly forms a reflection surface by which the use of an additional reflector plate is eliminated, so that the installation of a light guide plate is made easy and the manufacture cost is further reduced.

Abstract: A lighting apparatus includes a lighting element and a light guide plate. The light guide plate includes an optical waveguide zone and a wavelength converting zone. The optical waveguide zone is disposed on the lighting element, and includes an upper total reflection surface, a lower total reflection surface, a light incident surface and a first light outgoing surface. The upper and lower total reflection surfaces are disposed on opposite sides of the optical waveguide zone. The light incident surface is positioned on a partial area of the lower total reflection surface, and positioned on the optical path of the light emitted by the lighting element. The first light outgoing surface connects the upper and lower total reflection surfaces. The wavelength converting zone is adjoined to the first light outgoing surface, and includes a wavelength converting material therein.

Abstract: A system for providing backlight illumination is disclosed. The system comprises a plurality of light-emitting sheets arranged in a partially-overlapping configuration, and a light-conversion layer spaced from the sheets and having therein light-conversion structures for spectrally converting light emitted from the sheets.

Abstract: An optical sheet, a backlight unit having the optical sheet, and a display device having the backlight unit are discussed. According to an embodiment, the optical sheet includes a base film; a high refractive index layer having a plurality of prism portions on the base film; and a low refractive index layer positioned on the high refractive index layer, and covering the plurality of prism portions and having a surface parallel to the base film, each of the prism portions including an incidence surface on which incident light is refracted and a reflective surface on which the refracted light is reflected, the incidence surface including a bent for refracting the incident light towards the reflective surface.

Abstract: A light irradiation device includes: a light source to output diffused light; and a light guide member to guide the diffused light to an irradiation point. The light guide member includes an incidence surface which the diffused light enters, a first emission surface to emit the entered diffused light, while further diffusing the entered diffused light with a first diffusion characteristic to emit the diffused light at a first diffusion angle, and a second emission surface to emit the entered diffused light, while further diffusing the entered diffused light with a second diffusion characteristics to emit the diffused light at a second diffusion angle. The second diffusion angle provided by the second diffusion characteristic is smaller than the first diffusion angle provided by the first diffusion characteristic.

Abstract: A method is provided for controlling the collimation of light from a backlight top surface. A backlight device includes a first waveguide and a transparent top film overlying the first waveguide top surface. A plurality of bubble structures is formed in the top film bottom surface, having a refractive index less than a first waveguide medium. A plurality of lenses overlies the top film top surface, where each lens is aligned overlying a corresponding gap (W) between bubble structures. The method forms a maximum angle (?) of light propagation through the first waveguide medium. In response to the values W and H (bubble structure height), light, having the maximum angle (?) of light propagation, is reflected off the bubble structure sides, through total internal reflection, into the top film. The method collimates in a vertical direction, orthogonal to the horizontal direction, light exiting the top film through the lenses.

Abstract: A light guide plate with multi-directional structures includes a main body, a plurality of first microstructures and a plurality of second microstructures. The main body includes a light-incident surface, a light-emitting surface and a reflecting surface. The light-incident surface connects the light-emitting surface and the reflecting surface. The first microstructures are disposed on the light-emitting surface or the reflecting surface and arranged along a first extending direction. The second microstructures are disposed on the light-emitting surface or the reflecting surface and arranged along a second extending direction. The second microstructures and the first microstructures are disposed on the same plane and intersect with each other. Each of the second microstructures is a single stripe pattern, and has a width which becomes gradually smaller from one end of the second microstructure near the light-incident surface to the other end of the second microstructure away from the light-incident surface.

Abstract: A backlight module includes: a backplane, a backlight source arranged inside the backplane, a light guide plate arranged inside the backplane to correspond to the backlight source, a reflector plate disposed on a bottom of the light guide plate, an optic film disposed on a top of the light guide plate, and elastic members mounted to the backplane. The optic film has a top edge forming suspension sections and two first sidewalls respectively at left and right sides and each forming lugs. The suspension sections form first through holes. The lugs form second through holes. The backplane forms suspending pegs corresponding to the first through holes. The first through holes are mounted on the suspending pegs and the elastic members securely hold the second through holes and are mounted to the backplane so as to fix the optic films on the light guide plate.

Abstract: An electronic apparatus including a back cover, a frame body, a transparent plate, and a display unit is provided. The frame body is disposed on the back cover and has a first supporting surface and a second supporting surface. The transparent plate is supported on the first supporting surface. The display unit is supported on the second supporting surface and adhered to the transparent plate, and the display unit is held between the second supporting surface and the transparent plate.

Abstract: A light-emitting apparatus includes a light-emitting diode that functions as a light source, and a teardrop-shaped translucent member formed of a translucent material. The teardrop-shaped translucent member includes a bottom portion via which the light emitted from the light-emitting diode is input, a lateral portion configured to provide total internal reflection of the light input via the bottom portion, and a top portion configured to focus the light subjected to total internal reflection by the lateral portion so as to form an image.

Abstract: A lighting device includes a light guide structure. The light guide structure is arranged in tiers by a plurality of thin-film modules in which a portion of a first surface of each lower one of the plurality of light guide layers is covered by an upper one of the plurality of light guide layers to form an uncovered portion of the first surface. Each of the thin-film modules is configured to transmit light therein emitted from light emitting diodes (LEDs) to the uncovered portion and emit the light from the uncovered portion of the first surface thereof.

Abstract: The present invention is a display assembly including: a display and a backlight module, the backlight module including a prism structure. The backlight module generates light rays and directs the light rays to the display for illuminating the display. The prism structure of the backlight module is configured for causing the light rays to be directed to the display and for causing substantially all of the light rays to be emitted from the display assembly via the display into a pre-determined viewing envelope (ex.—towards an eye position of a viewer of the display.

Abstract: A light guide plate with triangular micro prisms comprises a smooth surface and a prism surface. A plurality of micro prism bodies is arranged on the prism surface. The cross section of each prism body is a triangle. A light source is provided on the outside of the micro prism having the longest distance from the triangle vertex to the smooth surface. The side of the triangle which is far from the light source and receives the light from the light source is called the acceptance side. The angle between the acceptance side and the normal line of the smooth surface is 40 degree to 90 degree. The angles from the micro prism body having the shortest distance between the vertex of triangle and the smooth surface to the micro prism body having the longest distance between the vertex of triangle and the smooth surface are gradually increased. The light guide plate may be symmetrical or asymmetrical, and it may be a rectangular plate or a circular plate.

Abstract: A lighting device includes a light source; a light guide plate including a side surface, on which light of the light source is incident, and a front surface extending perpendicular to the side surface; and a plurality of light emitting regions disposed on the front surface to be spaced apart from one another, and having optical patterns for emitting light from an inside of the light guide plate.

Abstract: This display device is provided with: a light source unit having a light source and a light source substrate; a display panel; a light receiving face that is disposed on the back side of the display panel, and upon which light is incident; a light guide plate having a light exiting surface that emits light toward the back side of the display panel; a wall that faces the light receiving face in such a manner that a gap is formed between the light receiving face and the wall; a light source support member that supports the light source unit, and is inserted with the light source unit in the gap etc. from the back side of the light guide plate; and an elastic member that is disposed on the light source support member, protrudes farther toward the light receiving surface than the light source, is inserted in the gap before the light source unit, and is formed of an elastic material.

Abstract: A lighting panel that provide an alternative means for producing a “spot light” like illumination from an LED is described. The lighting panel comprising a transparent substrate upon a first surface of which are mounted a plurality of transparent prism structures and upon a second surface of which is mounted a light emitting diode (LED). A transparent guide layer is arranged so as to encapsulate the light emitting diode upon the second surface such that the transparent base substrate and the transparent guide light form a composite structure for guiding light emitted from the LED. The transparent prism structures are configured to extract a first and a second light output from the lighting panel, the first and second light outputs having output angles and beam widths determined by the structure of the plurality of transparent prism structures. The lighting panels exhibit high optical efficiencies and long operating lifetimes.

Abstract: An optical element includes a light guide plate, a reflector received in a mounting hole of the light guide plate, and a supporting rod secured to and extending upwardly from the reflector. The light guide plate defines the mounting hole extending through the light guide plate from a top face to a bottom face thereof. The reflector includes a mounting surface coplanar with the top face of the light guide plate and a tapered reflecting face extending slantwise downwardly and inwardly from the mounting surface thereof. A backlight module incorporating the optical element is also provided. The backlight module has an LED located in the mounting hole and faces the reflecting face, and a diffuser plate secured to a top end of the supporting rod.

Abstract: An illuminating device includes a light source which outputs light, a light guide member having an incident surface on which the light from the light source is incident, an output surface through which the light is output from the light guide member, and a light deflection surface on which light deflection elements are formed such that the light is guided toward the output surface, and an isotropic light diffusion member positioned over the output surface of the light guide member. The light guide member has the incident surface extended in an X direction and includes a unit lens formed on the output surface and extended in a Y direction orthogonal to the X direction. A light-deflection element density D representing a number of the light deflection elements per unit area increases as the light deflection elements are positioned farther away from the incident surface.

Abstract: Disclosed are an optical member and a display device including the same. The optical member includes a light conversion layer including a plurality of light conversion particles; and a light diffusion layer including a plurality of light path conversion particles under the light conversion layer.

Abstract: Multibeam diffraction grating-based backlighting includes a light guide and a multibeam diffraction grating at a surface of the light guide. The light guide is to guide light from a light source. The multibeam diffraction grating is to couple out a portion of the guided light using diffractive coupling and to direct the coupled out portion away from the light guide as a plurality of light beams with different principal angular directions.

Abstract: The invention discloses a backlight module and liquid crystal display device. The backlight module of liquid crystal display device includes: a back plate and a diffuser disposed opposite to back plate; backlight module further comprising a plurality of light-emitting units, disposed between back plate and diffuser; each of light-emitting units comprising a light-guiding strip, fixed to back plate and light source, fixed and disposed on back plate opposite to one end of light-guiding strip; wherein light-guiding strip comprising a light-emitting surface and a bottom surface, disposed oppositely to each other; light-emitting surface having an arc cross-section and a top being convex facing bottom surface; light-emitting surface being for uniformly diffusing incident light from light source. Through disposing light-guiding strips for diffusing incident light from light source, the invention can achieve higher luminance with less number of light sources and reduce cost.

Abstract: This invention relates to a backlight module and a liquid crystal display where the backlight module comprises a light guide plate, a substrate, a light source, a reflective element and a reflective sheet. The light guide plate and the reflective sheet are joined by a double coated film that is set up along the edge of a lower surface of the light guide plate. A light exit plane of the light source is placed in between the lower surface of the light guide plate and a light exit plane of the light guide plate. By means of altering the setup of the light guide plate and the reflective sheet, this invention settles the technical issue of mura appeared at the corresponding display panel.

Abstract: A backlight unit includes: a light guide plate; a light source facing an entrance surface of the light guide plate; an optical sheet member located toward an exit surface of the light guide plate; and a frame surrounding the optical sheet member, the light source, and the light guide plate to retain the optical sheet member, the light source, and the light guide plate. The optical sheet member includes a protrusion protruding toward the light source and fixed to the light guide plate.

Abstract: A light guide plate 13 has a number of back surface-side unit optical structures 131 arranged in a back surface 13d along a light guide direction. Each back surface-side unit optical structure 131 is tapered in a direction away from a light exit surface 13c, and has a first inclined surface 132 lying on the light entrance surface side, a second inclined surface (133) lying opposite the first inclined surface and which totally reflects at least part of incident light, and a top surface region 134 lying between the first inclined surface 132 and the second inclined surface 133, and located farthest from the light exit surface 13c. The top surface regions 134 each include a plurality of surfaces 134a to 134d which are parallel to the light exit surface 13c and have different heights “h” in the direction away from the light exit surface 13c.

Abstract: An apparatus for use on an edge-injected, total internal reflection (TIR) waveguide. The apparatus comprises a substrate and a plurality of microstructures provided on the substrate. Each microstructure comprises at least two approximately planar surfaces for extracting light from the TIR waveguide. The plurality of microstructures are pseudo-randomly oriented on the substrate. The apparatus may used in a lighting system (e.g., a backlight for a display).

Abstract: A backlight module includes a light guide plate, at least one light source, and a reflective plate. The light source is configured for emitting light toward the light guide plate. The reflective plate has a plurality of reflective units arranging along a curved direction. Each of the reflective units includes a body and a plurality of microstructures. The body has a main surface facing the light guide plate. The plurality of microstructures are disposed on the main surface of the body. Each of the microstructures has a reflective surface. A first angle is included between the reflective surface of each of the microstructures and the main surface of the body. The first angles of the microstructures in one reflective unit are different from the first angles of the microstructures in an adjacent reflective unit.

Abstract: An example system in accordance with aspects of the present disclosure includes a lighting unit assembly having a light source, a transfer packet assembly to package the light source in a transfer packet, and a product assembly to fuse the light source into the headwear.

Abstract: A light guide plate transfer molding method for performing transfer molding of a light guide plate using a first mold and a second mold, includes performing, on a resin material, transfer molding of a first pattern and a second pattern that are provided on a transfer face of the first mold. The first pattern changes with a specific interval P serving as one period. The second pattern changes with one or two or more periods that correspond to 1/Na of the interval P. Na is a positive integer that satisfies Na?m, m being a specific positive integer.

Abstract: A multi-display system includes a single, two-sided backlight assembly between the display panels. The two-sided backlight assembly is able to emit light in two light paths generally 180 degrees apart—one light path passes through one of the display panels and another light pass through the other of the display panels. That is, the two-sided light guide assembly emits light out two sides and generally in opposite directions. The two-sided backlight assembly uses lights such as light emitting diodes (LEDs) mounted on the side of a light guide thereby permitting the backlight assembly to be relatively thin. Because a single, thin, two-sided backlight assembly is used, the overall depth of the multi-display system is less than would be the case if two separate backlight assemblies were used.