Abstract: The present invention provides a light guide plate comprising an input surface for receiving light from a plurality of discrete light sources, an output surface for emitting light, and a bottom surface opposing to the output surface, wherein at least one of the output surface and the bottom surface has a micro-pattern, the micro-pattern consisting of a plurality of substantially identical micro-lenses, each micro-lens having a width, a length, and an orientation angle. The light guide plate further provides an area density D(x, y) of the micro-lenses varies in a first direction y-axis that is parallel to the length direction and in a second direction x-axis that is parallel to the width direction for y between starting line y0 and ending line, the area density D(x, y=y0) at the starting line y0 varying between a minimal value Dmin and a maximum value Dmax such that Dmin?1% and 100?Dmax/Dmin?2, and wherein the area density D(x,y) repeats in pitch P in the x-axis such that D(x,y)=D(x+P,y).

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

Abstract: A light guide plate for distributing light from a light source includes a light scattering surface, a light output surface opposite to the light scattering surface, and a number of side surfaces surrounding the light scattering surface and the light output surface. The light scattering surface includes a number of light scattering dots thereon. The light scattering dots are arranged into a number of rows arranged from a first side of the light scattering surface to an opposite side of the light scattering surface. A distance between every two adjacent rows of the light scattering dots gradually decreases from the first side to the second side, such that the light scattering dots at the second side of the light scattering surface have a greater density than the light scattering dots at the first side of the light scattering surface.

Abstract: A lightguide to be used in a liquid crystal display device includes a light exit surface, a reflection surface opposed to the light exit surface, and a light entrance surface, which is one side surface. In a region of the light exit surface or the reflection surface, which is on a front side of an intermediate portion between two light sources when viewed from the light entrance surface, a plurality of local-area line-shaped protrusions are arranged, which are extending in a first direction. Each of the local-area line-shaped protrusions reflects the entered light so that a component of the entered light which is orthogonal to the first direction is weakened. A length of a local-area line-shaped protrusion farthest from the two adjacent light sources, is larger than a length of a local-area line-shaped protrusion closest to any one of the two adjacent light sources.

Abstract: This disclosure provides systems, methods, and apparatus for providing illumination. In one aspect, a light guide can be configured to propagate light received from a light source. The light can be propagated by total internal reflection (TIR) within the light guide. The light guide can include an output surface configured to output light and one or more light extraction elements, which are configured to redirect the light propagating in the light guide so that the light exits the light guide through the output surface. The light guide can have tapered side walls that are configured to at least partially collimate the light that is to exit out of the output surface. In some implementations, the light guide can be used to provide illumination for display devices, other electromechanical systems, or for lighting a room or task area.

Abstract: A light guide plate and a plane light source unit are provided. The light guide plate for a plane light source unit includes a plurality of unit pattern regions each having a plurality of optical patterns on surfaces thereof, wherein one or more unit pattern regions have different sag values (height:lens size) of the optical patterns constituting the unit pattern regions. Unit pattern regions are implemented with segmented optical patterns, which are equal in height, from the outside of the light guide plate to the central part thereof, by adjusting the density and size of microlenses, thereby improving the light uniformity and light efficiency and improving the efficiency of manufacturing processes.

Abstract: Disclosed is an optical member for use in liquid crystal displays, which can correct the light path and can minimize the loss of light, so that light in a wider angular range can be collected forwards. Even when a distance between the optical member and a light source is shortened, the optical member can exhibit good hiding performance and prevent deformation caused by heat. Upon expansion and shrinkage, the optical member is not scratched and does not generate noise at a portion in contact with a support pin.

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 converging illuminant device has a flat illuminant, a reflective layer and an enhancement film. The reflective layer abuts the flat illuminant, is grille-shaped and has multiple longitudinal strips and multiple lateral strips. The enhancement film is securely connected with the reflective layer and has an emissive surface. The emissive surface has multiple free-form curved areas, multiple longitudinal lines and multiple lateral lines. The longitudinal lines respectively align with the longitudinal strips. The lateral lines respectively align with the lateral strips. Because the reflective layer is grille-shaped, light definitely passes through central positions of the free-form curved areas, angles of refraction of the light are small and the light can be effectively converged. Consequently, illuminant efficiency and central luminous intensity are increased.

Abstract: The present invention reduces generation of unevenness on a surface by adjusting unevenness of a reflection pattern in a case where the reflection pattern is formed by an ultrasonic process.

Abstract: The present invention relates to a backlight module and light guide plate thereof. The light guide plate includes a first surface, a second surface and a side surface. The first surface has a plurality of first regions, a second region and a central line. The second region has a plurality of microstructures outside the first regions. The first regions and the second region are solid. The side surface is disposed between the first surface and the second surface. The first regions are adjacent to the side surface and extend toward the central line, and the first regions are intervally spaced. Whereby, the manufacture step of the light guide plate is simplified, and the manufacture cost of the light guide plate is lowered, and the distribution of the microstructures can reduce the hot spots in front a plurality of point light sources efficiently.

Abstract: The present invention provides in one aspect a light device having a light guide. The light guide (20) has at least one major side defining a light extraction side (26). The light device further has at least one fibrous layer (30), typically a non-woven or woven fibrous layer, disposed on the major side of said light guide defining said light extraction side. At the light extraction side, the light device has a plurality of discrete bonding areas (40) at which the at least one fibrous layer is bonded to the major side of said light guide. In a particular aspect, the bonding areas define light extraction elements on the light extraction side.

Abstract: The present invention discloses a backlight module and a liquid crystal display (LCD). A light out surface of a light guide plate is provided with a plurality of micro structures. Each of the micro structures comprises a first light out surface and a second light out surface which are along the longitude direction and correspondingly been the inclined plane to each other. Besides, along a light in direction, at least one of the first oblique angle and the second oblique angle is changed with the increasing of distance from the light source, so that the lights can be uniformly emitted out through the micro structures.

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: A variation in luminance is reduced near a light source without decreasing intensity of a light exit pattern. A light source is disposed and a light exit pattern is formed. The light exit pattern reflects light guided in a light guide plate and outputs the light. In inclined angles of tangents of the light exit patterns in a section passing through a center axis of the light exit pattern, a largest inclined angle of the tangent is defined as a maximum inclined angle of the light exit pattern. At this time, in the light exit pattern provided in the light guide plate, the maximum inclined angle is decreased with increasing distance from a light incident surface in a region near the light incident surface, and the maximum inclined angle is decreased or kept constant with increasing distance from the light incident surface in a region distant from the region near the light incident surface.

Abstract: A surface light source device has a point light source disposed opposite a light incident surface of a light guide plate. The light guide plate includes a light introduction part, and a light guide plate body having a thickness smaller than a maximum thickness of the light introduction part. The light introduction part includes an inclined surface inclined from a surface in a portion having a thickness larger than the thickness of the light guide plate body toward an end of the surface of the light guide plate body. The light guide plate body has a light exit pattern for reflecting the light in the light guide plate body to output the light from a light exit surface. In a region close to the point light source of the light guide plate body, the thickness of the light guide plate body increases gradually with distance from the point light source.

Abstract: A light guide plate for a backlight comprises a light transmissive medium. The light transmissive medium preferably has two pairs of opposing sides and a top surface. Also provided is a plurality of interleaved regions of elongated light extraction features on the top surface of the light transmissive medium. Each light extraction figure is configured to extract light injected into the light guide plate and into a direction away from the top surface of the light guide plate. Each elongated light extraction feature has a long dimension and a short dimension. The light extraction features in a first set of the regions are arranged with their long dimension orthogonal to the long dimension of the light extraction features in a second set of the regions.

Abstract: A light guide plate includes a first surface, a second surface, at least a light incident surface, and a plurality of groove sets. The second surface is opposite to the first surface. The light incident surface connects the first surface and the second surface. The groove sets are separately disposed on the second surface. Each of the groove sets includes a plurality of curved grooves. Each of the curved grooves has a curved inclined reflective surface and a curved light-back-surface. The curved inclined reflective surface is inclined with respect to the first surface. The curved grooves of each of the groove sets curve towards a same curving direction. The curved inclined reflective surface of one of two curved grooves is connected to the curved light-back-surface of the other one of the two curved grooves. A backlight module is also provided.

Abstract: A backlight unit 12 includes an LED 16 and a light guide plate 18. The LED 16 has light emitting surfaces 16d, 16e. The light guide plate 18 has light entrance surfaces 18b, 18c and a light exit surface 18d. The light entrance surfaces 18b, 18c are provided to face the light emitting surfaces 16d, 16e respectively and rays of light emitted from the light emitting surfaces 16d, 16e enter the light entrance surfaces 18b, 18c. The rays of light entering the light entrance surfaces 18b, 18c exit from the light exit surface 18d. The light emitting surfaces 16d, 16e include a first light emitting surface 16d substantially parallel to the light exit surface 18d and second light emitting surfaces 16e. A plane on the first light emitting surface 16d crosses a plane on each second light emitting surface 16e.

Abstract: The present invention provides a light guide plate and a manufacturing method thereof. The manufacturing method firstly forms a plurality of spherical recesses arranged at intervals on a light-emitting surface of a light guide plate body when the light guide plate body is formed by pressing, and then applies a diffuser particle with corresponding shape on a surface of each of the spherical recesses, so as to complete the manufacture of the light guide plate. When being mounted in a backlight module, the light guide plate benefits the backlight module of reducing the use of diffuser films, so as to reduce the thickness and weight of the backlight module.

Abstract: A light guide plate mold insert includes a molding surface and a number of uniformly distributed dot-shaped recesses. The molding surface is used for forming a reflective surface of a light guide plate. The uniformly distributed dot-shaped recesses are formed in the molding surface. The molding surface includes a number of frosted regions formed by machining the molding surface using a sand-blasting process. Each of the frosted regions includes a number of dot-shaped micro recesses. A distribution density of the micro recesses are greater than that of the recesses.

Abstract: An illumination system includes: a light source that emits light; and a light guide that introduces the light through a light-incident end face facing the light source and that lets out the light from a light-exiting surface adjacent to the light-incident end face. The light source is disposed adjacent to the light-incident end face and in the position shifted from the center of the width of the light guide intersecting the direction in which the light source emits light. The light-incident end face of the light guide has at least one projection or recess in the direction intersecting the light-exiting direction of the light source. The projection or recess has an asymmetrical shape inclined in the direction intersecting the light-exiting direction of the light source. The projection or recess is inclined in one of directions intersecting the light-exiting direction of the light source.

Abstract: A light plate includes a light guide plate and four light source modules. The light source modules are disposed around the light guide plate. Each of the light source modules includes a first white light emitting element and a second white light emitting element. The first white light emitting element is capable of emitting a first white beam. The second white light emitting element disposed beside the first white light emitting element is capable of emitting a second white beam. The first white light emitting elements of the light source modules are mirror-symmetrical with respect to a first reference plane and a second reference plane. The second white light emitting elements of the light source modules are mirror-symmetrical with respect to the first reference plane and the second reference plane. The correlated color temperature (CCT) of the first white beam is greater than the CCT of the second white beam.

Abstract: An optical element includes a first optical member with at least one indentation at a first surface thereof, and a second optical member attached to the first surface. The second optical member conforms to the at least one indentation in the first optical member. The optical element further includes at least one reflector at an interface between the first and second optical members, where the at least one reflector is located at the at least one indentation. The reflector is formed by an interface between a cavity formed between the first and second optical members and at least one of the first and second optical members.

Abstract: An exemplary optical plate includes a base and an array of micro-structures. The base includes a first surface and a second surface opposite to the first surface. The micro-structures are provided at the first surface. Each micro-structure includes a base surface substantially coplanar with the first surface of the base and two side surfaces. The base surface has an approximately olive-shaped profile enclosed by two arc-outlines. The two side surfaces extend obliquely from the two arc-outlines and intersect at a ridge of the micro-structure.

Abstract: An edge light backlight device includes a light guide plate having a base portion and microstructures, LEDs, and a reflective plate. The base portion has a light emitting side, a rear side, and a light incident side. The microstructures are formed on one of the light emitting side and the rear side and each of which extends from the light incident side in a longitudinal direction. Each of the microstructures includes a curved surface with a radius of curvature (R). The light guide plate has a thickness (T). R/T ratio ranges from 0.04 to 0.15 and each of the microstructures has a height ranging from 20 ?m to 300 ?m so that the light guide plate has a performance of local lighting ranging from 1% to 40%.

Abstract: An optical assembly comprises light sources and a light emitting panel member having an input edge to which each of the light sources is optically coupled at a different location along the input edge. Different sets of individual optical deformities on or in at least one of the sides of the panel member each have at least one surface that is shaped or oriented to extract light propagating in the same direction through the panel member in different directions for viewing from different angles through one of the sides of the panel member.

Abstract: An end of a light guide plate used for a liquid crystal display and a lighting unit, which is positioned on one side in a first direction, is provided with a depressed portion, and another end of the light guide plate, which is positioned on the other side in the first direction, is provided with a projecting portion. Using the depressed portion and the projecting portion, the light guide plate is placed in a predetermined position of a frame body. The depressed portion and the projecting portion are formed at positions opposite each other in the first direction, and the projecting portion is equal to or smaller than the depressed portion in size.

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 backlight unit of a display apparatus, the backlight unit includes a light source unit disposed on at least one edge of a display panel; and a light guide plate disposed at rear of the display panel. The light guide plate includes a first pattern part including a plurality of first pattern lines formed on a lower surface of the light guide plate, and which extend perpendicularly to a transmission direction of the radiated light, and which totally reflect the radiated light to an upper surface of the light guide plate, and a second pattern part including a plurality of second pattern lines formed on the upper surface of the light guide plate, and which extend parallel with the transmission direction of the radiated light, and which guide light transmitted in the light guide plate to travel and exit along the second pattern lines.

Abstract: A light guide plate (30) includes a body portion (40), and a plurality of unit shaped elements (50) defining a light exit surface (31) and arranged on one-side surface (41) of the body portion side by side in an arrangement direction intersecting a light guide direction. Each unit shaped element extends in a direction intersecting the arrangement direction. A light exit surface angle ?a, which is the angle of the contour (51) of each unit shaped element with respect to the one-side surface, is more than 10° and not more than 30° in a zone of the contour of each unit shaped element, the width of the zone along the arrangement direction being not less than 35% and not more than 70% of the full width of the unit shaped element.

Abstract: A display apparatus is provided which includes a plurality of transparent plates which are disposed to be superimposed and which allow entered light to pass therethrough and allow the light to exit through an exiting surface, light sources provided for the respective transparent plates to irradiate light onto a side end surface of each of the transparent plates, and a plurality of diffusion portions, each of which is formed on a surface of each of the transparent plates facing the exiting surface, and which diffuse light from the light sources such that a position of maximum luminance of light exiting from each of the transparent plates differs between the transparent plates.

Abstract: A light guide plat and a backlight device are provided. The backlight device may include a guide plate include a first light guide having a first inclined plane and a second light guide having a second inclined plane facing the first inclined plane. A refractive index of the second light guide may be different from that of the first light guide. An optical device may be provided on the light guide plate. A first light emitting module may be provided at a lateral surface of the first light guide and a second light emitting module may be provided at a lateral surface of the second light guide. A reflective device may be provided below the second light guide.

Abstract: A method and a structure for improving the uniformity of light emitted from a backlight module are provided. In accordance with the present invention, a plurality of optical microstructures are intermittently distributed on an LGP of a backlight module. Each of the microstructures further includes a plurality of optical sub-microstructures. The optical microstructures and the optical sub-microstructures are distributed on the LGP with varied distribution intensities in three dimensions, such that at where the optical microstructures and the optical sub-microstructures are distributed with a larger distribution intensities the LGP refracts and reflects more light, and at where the optical microstructures and the optical sub-microstructures are distributed with a smaller distribution intensities the LGP refracts and reflects less light.

Abstract: A light guide plate having a first surface and a second surface opposite the first surface receives the light in a first direction parallel with the second surface and emits the light towards the first surface in a third direction perpendicular to the first surface, the light guide plate including: a light receiving portion which receives the light; a light guiding path which guides the light in the first direction; and an emitting portion which emits the light by reflecting the guided light towards the first surface in the third direction. The emitting portion is a first V-shaped groove having a V-shaped cross-section extending on the second surface in a second direction crossing the first direction. The first V-shaped groove is provided in plurality in the first direction and formed to be deepest in the center in the second direction and become shallower as distance increases from the center.

Abstract: Provided is a multi-layer light guide apparatus. Various optical paths are formed as a light source emits light into the apparatus. Main structure of the apparatus includes a body and a micro-structured layer. The body has a first layer with first refractive index (n1) and a second layer with second refractive index (n2). The first layer has a first critical angle (?C1). An interface critical angle (?C12) is formed between the associated first layer and second layer. The light then outputs as the light propagates through the layers. The micro-structured layer is formed on a side of the body. It features: n1<n2;0<|?C12??C1|?35°; A third layer with a third index of refraction (n3) is further included. A second interface critical angle (?C23) is formed between the second layer and the third layer. It features: n1<n2<n3;?C23>?C12;0<|?C12??C1|?35°.

Abstract: The invention relates to an illumination device (10) for illuminating a surface (101), with at least one lighting element (20) and an illuminating body (30), wherein the lighting element (20) emits an artificial light (21,21), a housing element (40) comprises the lighting element (20) and supports the illuminating body (30), the illuminating body (30) comprises a transparent light conductive material suitable to illuminate the surface (101) lying subjacent. The invention discloses, that the illuminating body (30) comprises a surface pattern (80), forming a Fresnel-type lens to optically magnify the surface (101).

Abstract: A flexible light-guiding module with waterproof function includes a flexible light-guiding film, a light-reflecting element and a light-generating element. The light-reflecting element is disposed on a bottom side of the flexible light-guiding film. The light-generating element is embedded into the flexible light-guiding film, and the light-generating element has a circuit substrate and at least one light-generating chip electrically disposed on the circuit substrate. Hence, the light-generating element is embedded into the flexible light-guiding film, so that the light-generating element is waterproof. In addition, the present invention can be attached to any plane or curved surface by using the flexible light-guiding film, so that the application field of the present invention is very extensive. Moreover, the flexible light-guiding film and the light-reflecting element are integrally formed in order to decrease manufacturing cost of the present invention.

Abstract: A light-guide illumination device and system comprises a light source, a light redirecting slab and a light guide slab assembly. The light redirecting slab includes a generally planar face having optical redirecting elements, the optical redirecting elements having respective optical coupling surfaces situated distally from the planar face. The light guide slab assembly includes a planar face having an optically transmissive interface layer assembled onto a first planar face of the light guide slab and optically coupled to receive transmitted light directed from the light source. The light guide slab is pressed onto the redirecting slab such that the interface layer is deformed, creating optical bonds at the optical coupling surfaces of the optical redirecting elements, the formed optical bonds providing optical apertures for light transmission therethrough.

Abstract: A display including a light source for generating light, an optical waveguide for receiving and evenly distributing light in a light propagation direction by total internal reflections and a matrix of electromechanical picture elements for modulating light to produce an image.

Abstract: A light emitting assembly comprises a plurality of light sources and a solid light emitting panel member having a light input edge and a transition area between the light sources and the light input edge. Light from the light sources enters the transition area and mixes within the transition area prior to entering the panel member. Refractive surfaces on the transition area redirect the light into the panel member. A film is maintained in spaced relation from the panel member by spacers at a perimeter of the film to form a hollow layer between the panel member and the film. Deformities on or in the panel member cause light to be extracted from the panel member and pass through the hollow layer and out through the film.

Abstract: A backlight assembly includes a plurality of light sources emitting light and a diffusion plate. The diffusion plate includes an incident surface on which the light is incident, an exit surface which is opposite the incident surface and from which the light exits, and first and second lens patterns which are disposed on the exit surface and have different shapes from each other. Each of the first lens patterns includes a first curved portion which forms a curve and first linear portions which extend from both ends of the first curved portion, respectively. Each of the second lens patterns includes a second curved portion which forms a curve and second linear portions which extend from both ends of the second curved portion, respectively.

Abstract: The invention provides an illumination device (1) comprising a lighting unit (2). The lighting unit (2) comprises a light source (100) and a substantially flat light guide (200), arranged to collimate light source light (111). The light guide (200) has an entrance window (210), an edge window (220), a first light guide surface (201), a second light guide surface (202), a first side edge (230) and a second side edge (240). One or more of the first light guide surface (201) and the second light guide surface (202) comprise a plurality of grooves (300). In this way, latitudinal collimation is obtained.

Abstract: The planar illumination device includes: a light guide plate formed by arranging a plurality of unit light guide plates each having a light emission surface as a front surface and a reflection surface as a back surface so that facing end surfaces of adjacent unit light guide plates of the plurality of unit light guide plates are closely arranged; one or two or more light sources arranged on a first side surface, in a direction where the plurality of unit light guide plates are arranged, of each of the plurality of unit light guide plates; and a recessed-and-projected structure arranged on a second side surface, facing the light sources, of each of the plurality of unit light guide plates and having an edge parallel to a normal to the light emission surface.

Abstract: Light guides and backlight systems are disclosed that include one or more groups of geometric light redirectors whose density and/or orientation across the surface of a light guide varies to improve light emission uniformity and to reduce visual artifacts.

Abstract: A backlight is provided for illuminating an at least partially transmissive display. The backlight includes a light source. A light guide receives the light from an edge surface and guides the light by total internal reflection. The light is extracted from the lightguide using sub-wavelength extraction features designed on the basis of two interleaved grating structures. The emitted light, using this arrangement has a high level of polarization.

Abstract: A backlight is provided for illuminating an at least partially transmissive display. The backlight includes a light source. A lightguide receives the light from an edge surface and guides the light by total internal reflection. The lightguide also has features that exist on one or more lightguide surfaces in the shape of a triangular wedge that reduces the range of angles in the vertical direction within the lightguide. This arrangement enables improved angular performance from out-coupled light.

Abstract: Provided is a backlight unit of a liquid crystal display (LCD). The backlight unit includes: a plurality of light guide plates (LGPs) arranged in M layers and separated from each other by a predetermined gap, wherein M is a natural number equal to or greater than two, a light source unit disposed on at least one side surface of each of the LGPs and including N light source blocks whose brightnesses are controlled individually, and wherein N is a natural number equal to or greater than two. The backlight unit further includes a plurality of light output regions defined by each of the LGPs being divided into a plurality of regions according to a distance from the light source unit and by a plurality of light output patterns being formed in some of the regions, and wherein the light output regions do not overlap each other in a stacking direction of the LGPs and are arranged to correspond to a whole surface of the LGPs.

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 guide plate includes a plate-shaped transparent body and a plurality of stripe-shaped planar structures. The plate-shaped transparent body is bent to form a top portion, a bottom portion, and a curved portion connected between the top portion and the bottom portion, and the top portion and the bottom portion are substantially parallel to each other and define a gap therebetween. The stripe-shaped planar structures are connected with each other on an outer surface of the curved portion.