Abstract: A planar light source device includes a plurality of light sources that is independently drivable, a first light guide to emit light incident from the first light source from an emitting surface in an emitting direction, a second light guide that is contained in a second light emitting region adjacent to a first light emitting region containing the first light guide and emits light incident from a second light source from the emitting surface in the emitting direction, and a partition frame having a partition wall that is positioned between the first light guide and the second light guide, partitions the first light emitting region and the second light emitting region, and is provided with a gap from the emitting surface of the first light guide, in which an angle formed by a wall surface and a bottom face of the partition wall is an acute angle.

Abstract: A lens portion of a display device includes: a first lens arranged between a light guide plate and a light-emitting element portion, and having a plurality of first prisms arranged on a first light-exiting surface; and a second lens arranged between the first lens and the light-emitting element portion, and having a plurality of second prisms arranged on a second light-exiting surface arranged at a position facing a light-entering surface. The first lens includes a plurality of diffusing prisms arranged on the light-entering surface and capable of diffusing light emitted from the second lens and introducing said light into the first lens.

Abstract: Backlit interior trim panel for vehicle interior comprising a decorative cover, a supporting component and a two-dimensional light guide comprising multiple independent lighting areas placed between the decorative cover and the supporting component. The two-dimensional light guide comprises a plurality of portions being optically separated between them in order to obtain said independent lighting areas by an only light guide, and light extracting means particularly configured to emit homogeneous light in such a way that the two-dimensional light guide is capable of emitting light in a controlled way.

Abstract: Implementations of the disclosed subject matter provide a window, an energy and light producing device including at least one transparent photovoltaic device and at least one non-transparent Organic Light Emitting Device (OLED) in an optical path of the window. A controller may control the operation of the non-transparent OLED of the energy and light producing device. An energy storage device may be electrically coupled to the controller and the energy and light producing device to store energy generated by the transparent photovoltaic device and to power the non-transparent OLED. In some implementations, a LED or OLED may be mounted in the frame of the window and may be powered by the energy storage device.

Abstract: A backlight module is disclosed and includes: a backplate divided into a border region and a middle region surrounded by the border region, the middle region including a hollow portion; a light guide plate arranged on the backplate and including a light incident side and a light exit side; an optical film arranged on the light exit side; a light bar fixing plate arranged in the hollow portion of the backplate and connected with the backplate; and at least two light bars fixed onto the light bar fixing plate, where light emitting surfaces of the at least two light bars are disposed to face away from each other and perpendicular to the light exit side. The light produced by the at least two light bars enters the light guide plate through the light incident side, and exits the light guide plate from the light exit side.

Abstract: The present invention relates to a light exiting member, a method of manufacturing the same, and more particularly, to a backlight unit of a liquid crystal display, a front light unit of a reflective display, applicable to interior lighting, living lighting or advertisement lighting, and a light member capable of implementing a delicate and various specific image by selectively burying or modifying the same. The light exiting member according to an embodiment of the present invention has a plurality of fine pattern portions formed on one surface, the fine pattern portions have a cavity, the cavity is defined by a lower surface located at a predetermined depth from the opening and a plurality of inner surfaces connected to the lower surface, and at least one of the inner surfaces is convex.

Abstract: A lighting device includes light sources arranged in an arrangement direction, a first light guide plate, and a second light guide plate on the first light guide plate. The first light guide plate includes a first light entering surface, a first light exit surface, and a first light diffusion portion adding a diffusion action to light to be refracted and travel in a crossing direction crossing the arrangement direction. The second light guide plate includes a second light entering surface, a second light exit surface, and a second light diffusion portion adding a diffusion action to light to be refracted and travel in the arrangement direction seen from the normal direction of the second light exit surface. The second light diffusion portion includes first lenses that include ridgelines extending in the crossing direction and inclined portions inclined at an angle from 35° to 55° inclusive relative to the normal direction.

Abstract: A luminaire includes a housing, a light diffusion panel, a reflective surface, and a plurality of light sources. The light diffusion panel includes a light source aperture, an edge surface bounding the light source aperture, and an emission surface. The emission surface includes first and second emission surface sections. The second emission surface section is disposed on an opposite side of the light source aperture from the first emission surface section. The reflective surface is disposed on a side of the light diffusion panel opposite the emission surface. The light sources project light into the light diffusion panel through the edge surface. The light sources include first and second light sources. The first light source projects light into the light diffusion panel and through the first emission surface section. The second light source projects light into the light diffusion panel and through the second emission surface section.

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate and including an end portion, a liquid crystal layer provided between the first substrate and the second substrate and including a polymer in a shape of a streak and a liquid crystal molecule, a light-emitting element having a light emitting portion opposed to the end portion, and a light guide located between the end portion and the light emitting portion.

Abstract: A direct-type backlight liquid crystal display device is provided, which includes a frame including a main frame, a bottom plate; a liquid crystal display panel, on a top surface of the main frame and parallel to the bottom plate, the liquid crystal display panel includes an array substrate, a color film substrate, a liquid crystal layer and a frame sealant, a pixel unit on the color film substrate includes a sub pixel, the sub pixel on a side of the color film substrate along a first direction parallel to the color film substrate is partially blocked and covered by a black matrix, a backlight unit including a light emitting element and a light homogenizing element; a display control unit, at a lateral end surface of the liquid crystal display panel and electrically connected with the liquid crystal display panel at the lateral end surface of the liquid crystal display panel.

Abstract: The invention relates to a diffractive waveguide display element comprising a waveguide body (13) having a first surface and a second surface opposite to the first surface, an outcoupling-diffractive optical element on said first surface for coupling light propagating inside the waveguide body out of the waveguide body, and a narrow-band reflector element (21) on said second surface. The invention also relates to a display device comprising such element.

Abstract: A lighting fixture includes a housing, a first light source, a light guide plate, and a second light source. The housing has an inner cavity and a mounting hole, the mounting hole communicates the inner cavity with an external environment of the housing, the light guide plate is installed in the mounting hole. A side of the light guide plate faces the inner cavity, the other side of the light guide plate faces an outside of the housing. The second light source projects second light to the light guide plate, the second light is capable of being projected to the outside of the housing through the light guide plate. The first light source projects first light, and is configured such that the first light is projected to the outside of the housing through the light guide plate, and the housing is a non-light-transmitting housing.

Abstract: A backlight unit and a display device includes a plurality of light sources and a color conversion layer on a reflective layer, thereby removing expensive color conversion sheets and supplying high-quality white light. A backlight unit includes a printed circuit; light sources on the printed circuit; a reflective layer on at least a partial area of an area in which the light sources are not disposed on the printed circuit; a transparent film above the light sources and the reflective layer and spaced apart from the light sources and the reflective layer; light diffusion patterns on at least one of the top and bottom of the transparent film and corresponding to each of the light sources; a first color conversion layer on the reflective layer; and a second color conversion layer on at least one of a top surface and a bottom surface of the light diffusion patterns.

Abstract: According to an aspect, a display apparatus includes: a first light-transmissive substrate; a second light-transmissive substrate arranged to face the first light-transmissive substrate; a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate; at least one light-emitting device arranged to face at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate; and at least one reflector arranged on at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate, the side surface of the first or second light-transmissive substrate being on an opposite side of the side surface of the first or second light-transmissive substrate to which the at least one light-emitting device faces, and configured to reflect light at the side surface on the opposite side.

Abstract: A display system and methods; in general, a plurality of display sub-assemblies collectively creating a viewing plane. Each display sub-assembly having a plurality of light emitting elements on a substrate with a plurality of substantially equal pixel gaps between light emitting elements. Bend gaps are provided between pixels that enable the display sub-assemblies to bend thereby creating a curved viewing plane. A mobile LED panel display may be formed of a plurality of LED display modules having a plurality of pixels, four or more casters, a battery powered supply, a media player (electrically communicating with the plurality of display modules for controlling the display of images on the LED panel display, and a removable content storage device and; thus, functions as a rugged, light weight, battery powered display to inform customers and passers-by about product and service offerings via a rugged person size mobile light weight battery powered display.

Abstract: According to one embodiment, a display device includes a first transparent substrate including a first end portion, a second transparent substrate including a second end portion and opposing the first transparent substrate and a plurality of light-emitting devices provided along the second end portion, and the first transparent substrate includes a first driver provided in a first region located between the first end portion and the second end portion and located without overlapping the second transparent substrate in planar view, the second end portion includes a concavity, and at least one first light-emitting device of the light emitting devices, provided along the concavity, oppose the first driver with a predetermined interval therebetween.

Abstract: According to one embodiment, an electronic device includes a liquid crystal panel, an illumination device, and a light reflecting material. The illumination device includes a first light guide having an opening, a first light source configured to irradiate the first light guide with light, a second light guide formed in the opening, and a second light source configured to irradiate the second light guide with light. The light reflecting material is located between the first light guide and the second light guide in the opening.

Abstract: A lightguide formed from a film comprises a light mixing region between a light emitting region and an array of coupling lightguides. The first coupling lightguide of the array of coupling lightguides comprises a first light input edge between an inner lateral edge of the first coupling lightguide and an outer lateral edge of the first coupling lightguide opposite the inner lateral edge, wherein a width of the first light input edge is less than a width of the first coupling lightguide at the light mixing region and the first coupling lightguide is folded toward the outer lateral edge such that the first light input edge is between the outer lateral edge and the inner lateral edge along the array direction. In one embodiment, the first light input edge is offset from the outer lateral edge and positioned above the first coupling lightguide.

Abstract: According to one embodiment, a display device includes a first transparent substrate including a first main surface, a second transparent substrate including a first end portion, a liquid crystal layer containing strip-shaped polymers and liquid crystal molecules, a third transparent substrate including a second end portion and a second main surface, a first light-emitting element and a first light guide. The first light guide includes a first surface and a second surface. A height from the first main surface to the second surface is less than a height from the first main surface to the second main surface.

Abstract: The present invention relates to a lighting apparatus using LEDs as light sources and a display using the lighting apparatus, particularly, the present invention provides a lighting apparatus including: a plurality of light sources located on a printed circuit board; and a reflecting unit provided on the printed circuit board; and a spaced area provided inside the reflective unit.

Abstract: There is provided a novel and improved optical body, method for manufacturing an optical body, light-emitting apparatus, and image display apparatus capable of improving emitted luminance and transparency, the optical body including: a base material; and a light extraction section, formed on at least one surface of the base material, that extracts internally propagated light incident inside the base material from a side face of the base material to an outside of the base material. The light extraction section includes a concave-convex structure in which at least one of concavities and convexities has a frustum shape, a fill ratio of the concave-convex structure is 15% or greater, and a light transmittance is 50% or greater.

Abstract: A light guide module is provided. The light guide module includes a first light guide unit, a second light guide unit and an elastic unit. The elastic unit is disposed between the first light guide unit and the second light guide unit. One side of the elastic unit is connected to the first light guide unit, and the other side of the elastic unit is connected to the second light guide unit. In an initial state, a first distance is formed between the first light guide unit and the second light guide unit. In an extended state, the elastic unit is elastically deformed, and a second distance is formed between the first light guide unit and the second light guide unit.

Abstract: A light guide assembly, a backlight source and a display device are provided. The light guide assembly includes: a first medium layer including a first light incidence face and a first light exit face opposed to each other; at least one triangular prism unit on the first light exit face, each triangular prism unit including a second light incidence face, a second light exit face and a non-exit face, the second light incidence face being in contact with the first light exit face; and a second medium layer covering the second light exit face, refractive index n2 of each triangular prism unit is greater than refractive index n3 of the first medium layer and refractive index n1 of the second medium layer; and wherein an angle A between the second light incidence face and the second light exit face meets: ?+??10°<A<?+?, where ?=arcsin(n1/n2) and ?=arcsin(n3/n2).

Abstract: A transparent conductive film with a metal mesh embedded in a substrate and a method of fabrication thereof is provided. The metal mesh has a cap that is pressed and embedded in a substrate or a deformable material on a substrate, providing superior mechanical stability by mechanical interlocking. The embedding mechanism also provides superior chemical and environmental stability. A fabrication method is provided and includes a vacuum-free and low-cost process for large-volume manufacturing of the transparent conductive film with tunable performance.

Abstract: A display device and a driving method for the same are disclosed. The display device includes a LCD panel and a backlight module disposed at a light incident side of the LCD panel; a surface of the backlight module facing the LCD panel is provided with a diffraction grating structure. Under 3D display mode, the light emitted by the backlight module is incident onto the LCD panel through the diffraction grating structure and formed into alternately bright and dark stripe patterns which are arranged laterally and extending lengthways, wherein every at least three bright stripe patterns arranged in sequence are considered as a group, and the bright stripe patterns in each group have colors different from each other. The display device not only reduces the entire thickness, but also improves the transmittance and reduces the power consumption, accordingly.

Abstract: An illumination device includes: a first light guide plate including a first and a second scattering portions and a first region not having the first and second scattering portions arranged therein; a second light guide plate including a third and a fourth scattering portions; a first illuminator emitting light to a first side surface of the first light guide plate; a second illuminator emitting light to a second side surface opposite to the first side surface; a third illuminator emitting light to a third side surface of the second light guide plate; and a fourth illuminator emitting light to a fourth side surface opposite to the third side surface. The second light guide plate overlaps the first light guide plate as viewed from a direction of the thicknesses thereof. The third and fourth scattering portions overlap the first region as viewed from the direction of the thicknesses.

Abstract: A lighting system comprising: a first controllable light source (11) configured to provide light in a first direction; a second electrically controllable light source (16) configured to provide light in a second direction; a support structure (14) comprising at least one region of light diffusing particles configured to diffuse light provided by the second electrically controllable light source such that at least a portion of the light provided by the second electrically controllable light source is output in the first direction and is mixed with the light provided by the first controllable light source.

Abstract: The embodiments of the present disclosure provide a backlight module and a display device, which increase the brightness range of the lateral entrance backlight module, thereby improving the HDR display effect of the display device. The backlight module in the embodiment of the present disclosure includes at least two lateral entrance light guide plates, each lateral entrance light guide plate is provided with a light bar. The number of light bars of the backlight module is increased, thereby increasing the maximum brightness of the backlight module. The overall brightness variation range of the backlight module is thus increased. In addition, the light bar of each lateral entrance light guide plate can be separately controlled, thereby increasing the brightness range of the backlight module. Therefore, the backlight module provided by this solution can effectively improve the HDR display effect of the display device.

Abstract: A light regulation device includes a first light guide structure having an incident light, a second light guide structure having a light emitting surface, and a light deflection sheet having a first light deflection layer. All or a portion of the incident light is guided by the first light guide structure toward the light deflection sheet, is then deflected at least by the first light deflection layer to travel to the second light guide structure so as to be guided by the same to emit through the light emitting surface. The other portion of the incident light is guided by the first light guide structure toward the second light guide structure, and is then guided by the second light guide structure to emit through the light emitting surface.

Abstract: A backlight unit, a liquid crystal display and method of manufacturing the same are provided. The backlight unit includes a backlight source and a diffraction grating disposed on the backlight source. The diffraction grating is etched on the backlight source, each of monochromatic light emitting units in the backlight source corresponds to N grating patterns on the diffraction grating, where N is a natural number greater than 1.

Abstract: Devices including organic and inorganic LEDs are provided. Techniques for fabricating the devices include fabricating an inorganic LED on a parent substrate and transferring the LED to a host substrate via a non-destructive ELO process. Scaling techniques are also provided, in which an elastomeric substrate is deformed to achieve a desired display size.

Abstract: A lighting system can include a lightguide having an edge and two major surfaces. The lightguide can be mounted in a frame so that one of the major surfaces faces towards an area to be illuminated, while the other major surface faces away from the area. LEDs can couple light into the lightguide edge, with the coupled light emitting from both major surfaces. Light emitted from the major surface that faces away from the area to be illuminated can be reflected back into the lightguide by a reflective surface. The reflective surface can be separated from the lightguide by an air gap. The air gap can promote internal reflection at the major surface facing away from the area to be illuminated, thereby enhancing homogeneity and output of light towards the area to be illuminated. The frame can include integral wireways, reflector retention clips, and grounding circuitry.

Abstract: In a backlight module, a diffusive structure and a prism structure are replaced by a diffusive prism film formed on a substrate and transferred via In-Mold Decoration by Roller (IMR) to a light guide body via injection molding. A reflection film is also transferred to an opposite side of the light guide body via the same way. In such way, optical films may be readily transferred to the light guide body via two-side IMR during the process of injection molding of the light guide body, saving room taken by substrates of the optical components.

Abstract: The present invention discloses a backlight system and a display device. In the backlight system, corresponding at least one beam expanding plate is arranged at the emergent side of a backlight module, and include a horizontal beam expanding plate and/or a vertical beam expanding plate, wherein each beam expanding plate includes an upper beam expanding sub-plate and a lower beam expanding sub-plate having the same periodic curved surface structures, the upper beam expanding sub-plate and the lower beam expanding sub-plate are arranged in parallel in such a manner that periodic curved surface structures are back-to-back against each other, and the relative position of the upper beam expanding sub-plate and the lower beam expanding sub-plate in the horizontal direction can be adjusted parallelly within a set range.

Abstract: A variety of light-emitting devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, a light-emitting device includes one or more light-emitting elements (LEEs) disposed on a base surface that are configured to emit light, a first optical element having a first surface spaced apart from the LEEs and positioned to receive light from the LEEs, a transparent second optical coupled to the first optical element, and a reflector element adjacent the second optical element arranged to reflect a portion of light output from the second optical element.

Abstract: A modular light-emitting panel assembly has first and second light guides edge lit by respective light sources. Each light guide has a light input edge, opposed side edges, opposed major surfaces and a pattern of light extracting elements at at least one of the major surfaces. The light guides are juxtaposed with a side edge of the first light guide abutting a side edge of the second light guide at a seam and with the major surfaces nominally coplanar. Various embodiments of the panel assembly additionally include respective structures that reduce visibility of the seam when the light sources illuminate the panel assembly.

Abstract: A method of manufacturing an optical device for a back light unit includes forming a metal ingot by adhering insulating layers between metal plates. The metal ingot is cut in a vertical direction to create original substrates each with insulating layer portions in parallel with intervals therebetween. Solder resist is deposited on at least one of a top surface and bottom surface of an original substrate.

Abstract: Disclosed is a light device comprising: a diffusion unit for diffusing and radiating light incident from a light source; and a condensing unit installed on a light radiating surface of the diffusion unit, including a micro lens array of lenses having sag determined depending on one of a light emitting area of the lighting device and total light flux of the lighting device. Thus, the lighting device can reduce a light flux emitted at the angle between 65 deg and 90 deg, thereby meeting UGR conditions.

Abstract: A display may have a thin-film transistor (TFT) layer and a color filter layer. The TFT layer may have a first substrate, a first black masking layer, a planarization layer, and a layer of TFT circuitry on the planarization layer. The color filter layer may have a second substrate and a second black masking layer on the second substrate. A portion of the inactive area may serve as a logo area for displaying desired information to the user. A reflective structure may be formed on the bottom surface of the planarization layer, on the bottom surface of the first substrate, on the bottom surface of the second substrate, or on the upper surface of the first substrate in the logo area. In another embodiment, the logo area may be backlit by transmitting light through one or more openings in the first and second black masking layers in the logo area.

Abstract: A light guide including a plurality of reflection patterns in a reflection area in a facing surface facing a light exit surface, which area corresponds to a light emitting area, and the reflection patterns are arranged so that an amount of light reflected by the reflection patterns, emitted from the light emitting area to arrive at an observer observing the light exit surface is continuously changed in accordance with a position in the light emitting area.

Abstract: The invention relates to a luminaire that enables the use of more sparsely distributed light sources, having a uniform fixture surface brightness and good color mixing. The luminaire comprises first and second light guide layers (10, 11) optically coupled together by at least one optical coupler (12a, 12b), which allows the passage of light from the first (10) to the second light guide layer (11). The luminaire also comprises a plurality of light sources (16a, 16b), each of which being arranged such that light emitted by the light source (16a, 16b) is coupled into the first light guide layer (10) at an interface surface (17)arranged substantially perpendicularly to a longitudinal axis of the first light guide layer (10). The luminaire further comprises a scattering element (14) adapted to cause light to be emitted from an emitting surface of the second light guide layer (11).

Abstract: This disclosure provides systems, methods and apparatus for illumination devices. In one aspect, an illumination device having a longitudinal axis includes a light source and a light guide. The light guide has a peripheral edge, a transmissive illumination surface, a center portion, and an upper surface. The transmissive illumination surface is oriented perpendicular to the longitudinal axis and disposed between the center portion and the peripheral edge. The upper surface is oriented relative to the illumination surface to define an angle ? therebetween. In some implementations, the angle ? can be greater than 15 degrees, for example.

Abstract: A backlight is disclosed and includes a visible light transmissive body primarily propagating light by TIR with a light input surface and a light output surface and a light guide portion and a light input portion. The light guide portion has a light reflection surface and a light emission surface. The light input portion has opposing side surfaces that are not parallel. One of the opposing surfaces is co-planar with either the light emission surface or the light reflection surface. A light source is disposed adjacent to the light input surface. The light source emits light into the light input portion. A reflective layer is disposed adjacent to or on the opposing side surfaces.

Abstract: An electronic device may have a liquid crystal display with backlight structures. The backlight structures may produce backlight that passes through the liquid crystal display. A reflector may be used to enhance backlight efficiency. The electronic device may have a housing in which the display is mounted. The housing may be formed from an opaque material such as metal. An opening may be formed in the housing. Transparent housing structures such as a transparent logo structure may be mounted in the opening of the housing. During operation, a light source may produce light that passes through the transparent logo structure. A light guide structure may be used to guide light from the light source to the transparent logo structure. The reflector may be formed from a coating of metal on the light guide structure. Light from the light source may be used to form the backlight for the backlight structures.

Abstract: A display device includes at least two display panels and a frame for supporting the display panels. The frame includes a partition wall configured for supporting at least an end portion of the display panels. A backlight unit is located at one side of the display panels and provides light to the display panels. The backlight unit includes a strip light source, a longitudinal edge of which is extended along a longitudinal edge of the partition wall for emitting light to the display panels disposed at opposite side of the partition wall and two light-guiding plates disposed at opposite sides of the strip light source for guiding the light emitted from the strip light source into the display panels.

Abstract: An electronic device may have a liquid crystal display with backlight structures. The backlight structures may produce backlight that passes through the liquid crystal display. A reflector may be used to enhance backlight efficiency. The electronic device may have a housing in which the display is mounted. The housing may be formed from an opaque material such as metal. An opening may be formed in the housing. Transparent housing structures such as a transparent logo structure may be mounted in the opening of the housing. During operation, a light source may produce light that passes through the transparent logo structure. A light guide structure may be used to guide light from the light source to the transparent logo structure. The reflector may be formed from a coating of metal on the light guide structure. Light from the light source may be used to form the backlight for the backlight structures.

Abstract: The present disclosure relates to methods and systems for measuring and correcting electronic visual displays. A method in accordance with one embodiment of the present technology includes generating a series of patterns for illuminating proper subsets of the light emitting elements of the display, such as regular grids of nonadjacent activated light emitting elements with the elements in between deactivated. For each generated pattern, an imaging device captures information about the activated light emitting elements. A computing device analyzes the captured information, comparing the output of the activated light emitting elements to target output values, and determines correction factors to calibrate the display to better achieve the target output values. In some embodiments, the correction factors may be uploaded to firmware controlling the display or used to process images to be shown on the display.

Abstract: A system for reproducing stereographic images is provided that includes a display unit that has a pixel array for representing image data which reproduces the same when controlled with stereoscopic image data, and a light source for fully illuminating the pixel array. The system further includes a pair of glasses that are suitable to make the reproduced stereoscopic image data available to a wearer of the pair of glasses in an eye-selective manner. The display unit has at least one additional light source for fully illuminating the pixel array. Every light source is additionally configured to emit light in a plurality of narrow spectral ranges, thereby defining a color range, the spectral ranges of the light sources being orthogonal to each other. The system also includes a control unit that sequentially operates the light sources.

Abstract: Systems, devices, and methods are provided for using a textured surface of a light guide plate to reduce friction between the light guide plate and an adjacent film. A textured surface across an interior region of the light guide may guide light towards a top surface of the textured light guide. A film positioned on the bottom surface of the textured light guide may reflect light towards the top surface. The film may be positioned within the interior region as a substantially flat (e.g., planar) layer. The surface features may reduce the friction to enable the textured light guide plate and/or film to expand or contract independently from one another due to varying temperatures without forming wrinkles on the film or changing the planarity of the film.

Abstract: A lighting module comprises a light guide plate including a predetermined pattern; a case covering both sides of the light guide plate; and a light source which is disposed in the case and is configured to emit light to the both sides of the light guide plate, wherein the light guide plate is configured to emit the light from the light source through a top surface and a bottom surface of light guide plate, and wherein the lighting module is configured to emit first light upward from the top surface of the light guide plate, and second light downward from the bottom surface of the light guide plate.