Abstract: A visibility control device includes one or more light sources to provide input light, a waveguiding substrate, which has a first major surface and a second major surface, and a plurality of light-deflecting grooves implemented on at least one major surface of the substrate. The device is arranged to form guided light by coupling the input light into the substrate, The grooves are arranged to form deflected light by coupling the guided light out of the substrate through the second major surface of the substrate.

Abstract: A lighting fixture with segmented emission employing a sheet of an optically transmissive material having a first broad-area surface configured for light output, an opposing second broad-area surface extending parallel to the first broad-area surface and configured for light output, a first edge configured for light input, and an opposing second edge. The lighting fixture further employs a series of compact solid-state light sources optically coupled at least to the first edge, a plurality of patterned light extraction areas distributed over an area of the rectangular sheet and separated from one another and from the first and second edges by separation areas, and a housing encasing the light sources and one or more edges of the rectangular sheet. A width of the separation areas may be less than a length or width dimension of the patterned light extraction areas.

Abstract: The present disclosure provides a light source. The light source of the present disclosure comprises a substrate and a light emitting portion. The light emitting portion comprises a first light emitting component, a second light emitting component, and a separation component. The first light emitting component is provided on the substrate. The second light emitting component is disposed on the substrate and can emit light independently from the first light emitting component. The separation component is located between the first light emitting component and the second light emitting component and is a light reflective structure, such that the first light emitting component and the second light emitting component emit light toward directions away from the reflective structure respectively. The present disclosure also provides a backlight module including the light source and a light guide plate, a display device including the backlight module, and an electronic device including the display device.

Abstract: A component (1) is disclosed. The component (1) comprises at least one flat decorative element (2) having a visible side (3) and a back side (4), at least one layer (5, 5) having a front side (6) and a back side (7), which layer is arranged on the back side (4) of the flat decorative element (2), wherein the front side (6) faces the back side (4) of the flat decorative element (2), at least one housing (8) having an inner side (9) and an outer side (10), wherein the inner side (9) faces the back side (7) of the layer (5), wherein the housing (8) is made of a material which has a hardness that is different from the hardness of a material of which the layer (5, 5?) is made, and wherein the housing (8) engages in at least one recess (26) arranged in the layer (5, 5?) and/or the layer (5, 5?) engages in at least one recess arranged in the housing (8).

Abstract: A display device includes a display panel and a light transmission layer disposed on the display panel. The display panel has an active area having a first side and a second side opposite to the first side and outputting a main image, and an auxiliary area located outside of and distributed along the first side and outputting an auxiliary image. The light transmission layer has a bottom surface facing the active area and receiving the main image. A light entrance surface and a reflective surface are located at sides of the bottom surface corresponding to the first side for receiving the auxiliary image and to the second side while inclining outward away from the bottom surface, respectively. After entering the light entrance surface, the auxiliary image is transmitted to the reflective surface and reflected outside one side of the main image corresponding to the second side via the reflective surface.

Abstract: A display apparatus includes a back plate having a rear wall and a peripheral wall that cooperatively define an accommodation space, a light guide plate disposed in the accommodation space, a display panel disposed in the accommodation space forwardly of the light guide plate, a plurality of stacked optical films disposed between the light guide plate and the display panel, and a panel fixing device including a first limiting unit and a second limiting unit that cooperate with each other to clamp and fix a peripheral edge portion of the display panel therebetween.

Abstract: A twinkling door hanger mainly includes: a main body, being 3D body modeling, a front side thereof having a pair of slots opposite to each other, a wall of each slot being configured with a light transmissive hole; at least two light guiding plates, stacked together and inserted in the slots in a separable way, each thereof having a light incidence face corresponding to the light transmissive hole, and a plate face of each light guiding plate perpendicular to the light incidence face having a decorative pattern, and the decorative pattern of each light guiding plate being staggered; and a circuit unit, fixed to one side of the main body, having a control circuit in connection with a battery and providing electricity, at least having two light-emitting elements and a control circuit adapted to control each light-emitting element to wink in sequence, each light-emitting element illuminating toward the corresponding light incidence face.

Abstract: The present invention solves glare of an embossed matte film of a conventional product produced and sold by the applicant of the present application, and provides a light diffusion film and the like having a surface shape of an irregular pattern that significantly suppresses the glare even when an LED light source is used and also maintains the good optical characteristics. The following is believed sufficient for maintaining good optical characteristics of an embossed matte film and also for solving the glare. To maintain the optical characteristics, the surface shape was defined by use of an inclination angle histogram profile of an embossed surface. In order to solve the glare, the size of unit patterns which make up an entire pattern and do not cause glare was defined by use of the value of the average length RSm of the roughness curve element of the embossed surface.

Abstract: A flashing brooch includes: a fastener to be attached to a fabric, a base, a circuit module, and a light guide unit. The light guide unit includes two light spreader plates that are parallel to each other and are mounted to one side of the fastener. The circuit module includes a light-emitting element corresponding to each of the light spreader plates and a control circuit that controls each of the light-emitting elements to get lightening and darkening in a given sequence and further includes a power switch that activates/de-activates the supply of electricity. As such, when each of the light-emitting elements get lightening and darkening in sequence, the light spreader plate corresponding thereto shows an effect of light flashing in response thereto to thereby improve decoration of the brooch.

Abstract: An instrument cluster includes a housing that provides a chamber. A light source is in communication with the chamber. A non-opaque display element is in communication with the chamber and has an exterior surface. An indicium is etched interiorly of the exterior surface without the indicium providing a portion of the exterior surface. The light source is configured to illuminate the indicium.

Abstract: A light-emitting diode (LED) system to retrofit a light fixture has a frame configured to be installed under an existing light fixture and a LED lighting assembly couplable to the frame. In one example, the frame is formed as a plurality of rails having a flange to be installed between the light fixture and a grid member of a ceiling suspension system. The frame may be installed without removal of the existing light fixture. The LED lighting assembly includes an LED array and an optical waveguide for dispersing light from the LED array. The LED system maintains a thin profile, enabling it to retrofit existing light fixtures. Installation time is reduced, thereby reducing labor costs, while the LED lighting provides more light with less energy.

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: An edge lighting device, and a method of providing edge lighting, including providing a lighting device with at least one light emitting diode (LED) chip embedded therein, wherein the LED chip(s) generates light photons. A path of the light photons within the lighting device that are emitted by the LED chip(s) from a top surface of the LED chip(s), are redirected from a first edge of the lighting device back through the lighting device to a second edge of the lighting device opposite to the first edge. The first edge and the second edge of the lighting device are perpendicular to the top surface of the LED chip(s). The photons which were redirected from the first edge of the lighting device then follow a path through the second edge of the device and are then output from the edge lighting device at the second edge of the device.

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

Abstract: A system and method for creating a trompe-l'oeil skylight in a ceiling where a light emitting image of the sky is provided in a structure configured to emulate a skylight frame, including an embodiment of a unified non-rectangular sky image area in a substantially rectangular fixture which mount as a single unit into a substantially rectangular hole in a ceiling.

Abstract: The present invention provides a decoration of water lantern which mainly comprises a body, a light guide unit, and a base. The body can be filled with flow liquid inside. The light guide unit comprises a light guide plate provided inside the body, the light guide plate comprises an incident light portion contacting with the bottom of the body, and the surface of the light guide plate is provided with patterns. The base is used to fasten the body. A circuit module is provided inside the base. The circuit module is provided with at least one light-emitting diode corresponding to the incident light portion.

Abstract: Provided are decorative glass and light-transmitting decorative glass products which are outstandingly decorative by processing a surface of a translucent glass plate, typically used as building materials or for other uses, without impairing the strength of the glass itself. The surface of the translucent glass plate 1, which is 4 to 25 mm in thickness, is impressed to form a plurality of radial cracks 7 each having a diameter of 0.01 to 3.0 mm, so that dots of the cracks 7 form an arbitrary character or pattern to thereby manufacture the decorative glass product. The light-transmitting decorative glass product includes the decorative glass, and a light source which is disposed so as to allow a highly directive irradiating beam to be incident upon any one of the four sides of the translucent glass plate 1 and enter the translucent glass plate.

Abstract: A bezel for a TV display has two or more bezel elements, one being more diffusive of light from a source juxtaposed with the bezel assembly than the other element. One element can laterally border the other element or one element can be directly behind the other. More than two bezel elements may be used.

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 light-emitting diode (LED) system to retrofit a light fixture has a frame configured to be installed under an existing light fixture and a LED lighting assembly couplable to the frame. In one example, the frame is formed as a plurality of rails having a flange to be installed between the light fixture and a grid member of a ceiling suspension system. The frame may be installed without removal of the existing light fixture. The LED lighting assembly includes an LED array and an optical waveguide for dispersing light from the LED array. The LED system maintains a thin profile, enabling it to retrofit existing light fixtures. Installation time is reduced, thereby reducing labor costs, while the LED lighting provides more light with less energy.

Abstract: The invention relates to an illumination device, in particular in the form of a luminous emitter (14) for TV recordings, stages, etc. The luminous emitter (14) comprises a light source (29) and a plate-type element (25) arranged in the beam path of the light source (29). The plate-type element (25) comprises two transparent plates (26) with a layer of liquid crystals (22) arranged in between. The liquid crystals (22) are disordered in a first state. The liquid crystals (22) are aligned with one another in a second state. An electrical voltage is applied to the liquid crystal layer in order to change between the states. The invention enables a rapid change between direct illumination and diffuse illumination.

Abstract: A vehicle lamp includes a plurality of light sources, and a light guide plate configured to emit light to the front side of the lamp from a second surface facing a first surface by internally reflecting light, which is emitted from the respective light sources, by a plurality of reflective elements formed on the first surface after causing the light to enter the light guide plate from a rear end face of the light guide plate. The light guide plate is curved to the first surface and gradually becomes thinner toward the front side. The reflective elements are disposed at a predetermined interval in a longitudinal direction and extend in a direction crossing the longitudinal direction.

Abstract: Methods and aparatuses disclosed herein relate to backlit visual display elements. A visual display element may include a base layer defining one or more microperforations and a light guide coupled to a light source. The light guide may be positioned adjacent the base layer and include one or more microlenses in alignment with the one or more microperforations along at least one vertical axis.

Abstract: A door sill lighting for a motor vehicle is described. The door sill lighting comprises an outer sill trim having a plurality of seamlessly interconnected layers. A partial region of an outer layer is transparent and cooperates with at least one light source. The partial region of the outer layer comprises edge sides and an optical fiber layer. The optical fiber layer has distributed light-scattering nanoparticles in its volume. Light from the light source can be coupled into an edge side of the optical fiber layer.

Abstract: Disclosed is a mobile terminal and a method for fabricating a case thereof, the mobile terminal comprising a case defining an appearance of the mobile terminal, wherein the case includes a first base formed of a transparent material, a plurality of recess portions recessed into one surface of the first base, and a second base having a surface facing the plurality of recess portions, and disposed to be overlaid on the plurality of recess portions so as to form empty spaces defined by the plurality of recess portions and the surface facing the plurality of recess portions.

Abstract: A lighting fixture and method for creating visual effects include a light box having an interior, a reflective inner surface and an opening, a plate covering the opening, a 3-dimentional image on the plate having a first depth, at least one light source disposed in the interior for illuminating the image with evenly spread light. The light source is disposed at a second depth behind the image. A ratio of first to second depths is between 7:7 and 7:21. A plurality of interchangeable plates may be provided with respective 3-dimentional images for creating different effects. A method for creating a distorted image includes preparing a 2-dimensional image, sculpting a 3-dimensional model, vacuum forming and running a 3-dimentional grid, drawing a distorted outline onto a 2-dimentional grid with photo management software, digitally matching and stretching an original image to match the outline and removing the outline leaving the distorted image.

Abstract: A decoration device (6) includes at least one light source (12) emitting light having directivity, a diffusion member (11a) having a diffuse reflective surface for diffusely reflecting light from the light source (12), and a light guide member (13) arranged around the diffusion member at a position anterior to the diffuse reflective surface. The light guide member (13) includes at least one incident surface (13a) facing the at least one light source (12) and an end face (13d) facing the diffusion member of the light guide member (13), wherein the light guide member (13) causes light from the light source (12), the light entering the light guide member (13) through the incident surface (13a), to propagate so as to spread within the light guide member (13), so that the light from the light source (12) exits from an area of the end face (13d), the area being larger than the incident surface (13a), toward the diffuse reflective surface (11a).

Abstract: A light module for providing an array of quantum dot disks and methods for manufacturing the same are described herein. The light module may include at least one light emitting diode (LED) light source in an edge lighting configuration emitting light into a waveguide, such as a frustrated total internal reflection (FTIR) waveguide. At least a portion of the waveguide includes a nanophosphor material, such as a quantum dot disk. Moreover, the waveguide includes at least one aperture on a surface of the waveguide optically aligned with the nanophosphor material. The light module further includes a lens optically aligned with the aperture of the waveguide, such as an over-optic. In alternative embodiments of the invention, the light module may includes at least one LED light source optically aligned with a quantum dot disk remotely located from the LED light source and optically aligned with an over-optic lens.

Abstract: A submerged planar illumination device for providing specified, substantially uniform distribution of light in liquid from one or few light sources such as LED. The device comprises a light guiding plate having an entrance edge to which the LEDs are fixed, a collimator for redirecting the light and forming substrate light which is coupled to a light guiding plate having at least one light extracting surface. Light extracting surface are optionally on both large surfaces of the light guiding plate. Each light extracting surface is covered with a pattern of light extracting and scattering elements capable of collecting, scattering and extracting light propagating in the light guiding plate into the liquid ambient medium in which the device is submerged. A cover, sealed to the entrance edge of the light guiding plate, protects the light emitting element from the liquid ambient medium.

Abstract: The invention discloses a LED illumination device comprising a LED light source and a light guide device. The LED light source provides a light. The light guide device comprises a light-receiving surface, a light-emitting surface, and a body. The light-receiving surface receives the light from the light source. The body has a light channel for guiding the light toward the light-emitting surface. In addition, the body comprises at least one light splitter, and a part of the light within the light channel penetrates the body through the light splitter. Specially, the light guide device with the light splitter can reduce the amount of light emitting devices. The illumination system can be conspicuous at night.

Abstract: Provided are decorative glass and light-transmitting decorative glass products which are outstandingly decorative by processing a surface of a translucent glass plate, typically used as building materials or for other uses, without impairing the strength of the glass itself. The surface of the translucent glass plate 1, which is 4 to 25 mm in thickness, is impressed to form a plurality of radial cracks 7 each having a diameter of 0.01 to 3.0 mm, so that dots of the cracks 7 form an arbitrary character or pattern to thereby manufacture the decorative glass product. The light-transmitting decorative glass product includes the decorative glass, and a light source which is disposed so as to allow a highly directive irradiating beam to be incident upon any one of the four sides of the translucent glass plate 1 and enter the translucent glass plate.

Abstract: A light guide module capable of illuminating and being applied in a device for decoration is provided. The light guide module includes a reflective layer, a light guide with a plurality of diffusing particles, and a light source. The light guide has a side surface, a reflective surface and a light-exiting surface, thereby allowing a light from the light source to enter and reflect and exit the light guide respectively. The reflective layer is disposed on the reflective surface of the light guide for reflecting the light to the light-exiting surface. The light guide forms a portion of an outer surface of the device.

Abstract: Embodiments of a panel lighting apparatus and methods of its manufacture are described. In one embodiment, the apparatus can include a light source, an at least partially transparent panel comprising a planar front surface and a planar back surface, the panel disposed in conjunction with the light source such that light from the light source is input into at least one edge of the panel and guided therein, and a plurality of light extraction dots disposed on the planar back surface, the plurality of light extraction dots configured to reflect light incident on the planar back surface and extract light from the light source propagating in the panel through the planar front surface.

Abstract: An illuminated component for motor vehicles and the like includes a light source that may comprise one or more LEDs. A sheet of light-transmitting material has a first side surface that is coated with ink or other opaque material. Some of the opaque material is removed to form areas that may be illuminated by the light source. The opaque material may be removed utilizing a laser-engraving/etching process according to a specific pattern or design provided by a customer from a remote location.

Abstract: An illuminated mouse pad having a light guide having a top side, a bottom side and a perimeter side, a light source for directing emitted light through a first portion of the perimeter of the light guide, and an array of light diffusers located on the bottom side of the light guide, said light diffusers capable of diffusing or spreading out or scattering light emitted by the light source to give a soft back light to the top side.

Abstract: Systems and methods for a functional and ornamental vehicle accessory are provided. The vehicle accessory includes a housing and a mounting mechanism for coupling the accessory to a vehicle. The vehicle accessory can also include a light source or light conducting member. Wiring for electrically connecting the light source can be included such that the vehicle accessory can illuminate during a variety of vehicle functions. The vehicle accessory can also operate as a communication hub for the vehicle.

Abstract: Methods and apparatuses disclosed herein relate to backlit visual display elements. A visual display element may include a base layer defining one or more microperforations and a light guide coupled to a light source. The light guide may be positioned adjacent the base layer and include one or more microlenses in alignment with the one or more microperforations along at least one vertical axis.

Abstract: A flat panel display uses pixels that are turned on or off by the enabling or disabling total internal reflection, TIR, of a light guide. A reflective surface directs the switched light towards the viewer. An optional mask can be employed to provide extremely high contrast ratios in low and in high ambient lighting conditions. The elements that enable TIR can be enabled quickly because of their small size and weight, resulting in a very fast switching speed. The fast switching speed allows colors to be generated and displayed in a sequential manner.

Abstract: Embodiments of a panel lighting apparatus and methods of its manufacture are described. In one embodiment, the apparatus can include a light source, an at least partially transparent panel comprising a planar front surface and a planar back surface, the panel disposed in conjunction with the light source such that light from the light source is input into at least one edge of the panel and guided therein, and a plurality of light extraction dots disposed on the planar back surface, the plurality of light extraction dots configured to reflect light incident on the planar back surface and extract light from the light source propagating in the panel through the planar front surface.

Abstract: Embodiments of a panel lighting apparatus and methods of its manufacture are described. In one embodiment, the apparatus can include a light source, an at least partially transparent panel comprising a planar front surface and a planar back surface, the panel disposed in conjunction with the light source such that light from the light source is input into at least one edge of the panel and guided therein, and a plurality of light extraction dots disposed on the planar back surface, the plurality of light extraction dots configured to reflect light incident on the planar back surface and extract light from the light source propagating in the panel through the planar front surface.

Abstract: Embodiments of a panel lighting apparatus and methods of its manufacture are described. In one embodiment, the apparatus can include a light source, an at least partially transparent panel comprising a planar front surface and a planar back surface, the panel disposed in conjunction with the light source such that light from the light source is input into at least one edge of the panel and guided therein, and a plurality of light extraction dots disposed on the planar back surface, the plurality of light extraction dots configured to reflect light incident on the planar back surface and extract light from the light source propagating in the panel through the planar front surface.

Abstract: A light unit which includes a plurality of light-emitting diode (LED) light sources arranged in parallel, a light-guiding member arranged on said LED light sources, a light reflecting part for reflecting light from said LED light sources forward, a light diffusion part for outgoing light from the surface of said light-guiding member to outside, and an optical path changing part arranged above said light-diffusion part, wherein a side of said light-guiding member that faces said light diffusion part is flat.

Abstract: Light emitting decorative panels using a light source at the edge thereof that may have a desired uniformity of light emission from a pattern thereon, and which are not subject to local shadows (shading) in a pattern part from patterns or pattern parts between the respective pattern or pattern part and the light source. The elimination of shading is achieved by the depressions of a given geometry disposed in an arc having a center at the light source, and sizes each depression or arc segment of a depression in being chosen accordance with 1), the distance of the respective depression or depression segment from the source of light, and 2), the number of depressions between the respective depression and the source of light, with a second order correction for the position of depressions between the respective depression and the source of light.

Abstract: Light emitting decorative panels using a light source at the edge thereof that may have a desired uniformity of light emission from a pattern thereon, and which are not subject to local shadows (shading) in a pattern part from patterns or pattern parts between the respective pattern or pattern part and the light source. The elimination of shading is achieved by the depressions of a given geometry disposed in an arc having a center at the light source, and sizes each depression or arc segment of a depression in being chosen accordance with 1), the distance of the respective depression or depression segment from the source of light, and 2), the number of depressions between the respective depression and the source of light, with a second order correction for the position of depressions between the respective depression and the source of light.

Abstract: There is provided an illuminated surface mounted on a base surface. The illuminated surface includes a plurality of transmissive tiles configured to allow light to pass therethrough. Each of the transmissive tiles includes an exterior surface, an attaching surface and a plurality of lateral sides disposed between the exterior and attaching surfaces. The attaching surface is affixable to the base surface. The transmissive tiles are arranged in spaced relation to each other to define a cable channel. The cable channel is defined by opposing lateral sides of adjacent transmissive tiles. A fiber optic cable is in optical communication a light source and receives light therefrom. The fiber optic cable includes a longitudinal axis and a first segment disposed within the cable channel. The first segment is configured to radially radiate light along the longitudinal axis into the lateral sides of the adjacent transmissive tiles.

Abstract: A decorative lamp includes an opaque bracket, an opaque cover, a transparent light source consisting of a plurality of LEDs and a light guiding sheet. The cover engages with the bracket to define a chamber between the bracket and the cover. A slit is defined in the cover and communicates with the chamber. The light source is received in the chamber of the bracket and the cover and thermally connects with a heat sink in the chamber. The light guiding sheet includes a first end filled in the slit of the cover and a terminal second end opposite to the first end and located at outside of the cover. Light emitted from the light source travels to an outside of the decorative lamp along the light guiding sheet.

Abstract: An illuminated cap in one embodiment includes a crown having a visor and a nonrigid arc member around a bottom edge of an inner surface of the crown. A light source assembly includes a circuit board, light emitting members connected to the circuit board, a switch connected to the circuit board, and at least one cell on the circuit board. A transparent member on a rear strap of the crown has a groove, with the light emitting members mounted therein. The transparent member is lit when the light emitting members are activated. A translucent member on an outer surface of the transparent member includes openings arranged as a predetermined shape. Emitted light is adapted to pass through the transparent member and to further pass through the openings to show the predetermined shape as a warning to rear incoming vehicles in the night.

Abstract: A relatively thin printed LED backlight device with an integral diffuser may be integrated into an interior trim component using a molding process, such as injection molding, compression molding and reaction injection molding. The display portion may be placed behind a textile surface or molded grille or may form a portion of the outer surface of the trim component to provide light to low light areas of the vehicle. Electronic circuitry and components may be printed on to the substrate of the device as part of an in-line continuous process at the molding station to allow low inventory and customization of each backlight device.

Abstract: A luminous water bottle includes a bottle body, a lid, and a lighting assembly. The bottle body has a bottom wall, and a surrounding wall extending upwardly from a periphery of the bottom wall and cooperating with the bottom wall to define a space. The surrounding wall has an upper end opposite to the bottom wall. The lid is releasably engaged with the upper end of the surrounding wall. The lighting assembly is disposed at least partially in the space and includes a light-generating unit for generating and emitting light, and an illumination member for dispersing the light emitted by the light-generating unit.

Abstract: Embodiments of a panel lighting apparatus and methods of its manufacture are described. In one embodiment, the apparatus can include a light source, an at least partially transparent panel comprising a planar front surface and a planar back surface, the panel disposed in conjunction with the light source such that light from the light source is input into at least one edge of the panel and guided therein, and a plurality of light extraction dots disposed on the planar back surface, the plurality of light extraction dots configured to reflect light incident on the planar back surface and extract light from the light source propagating in the panel through the planar front surface.