Abstract: The present invention provides a display device, relates to the field of display technology, and can solve the technical problems of large volume and high cost in existing spectral separation 3D display device. The display device comprises: a display light source comprising at least one monochromatic wavelength tunable laser, when displaying each piece of 3D images, the monochromatic laser is capable of at least emitting a first laser beam at a first time, and emitting a second laser beam at a second time, and the peak wavelength of the first laser beam is different from that of the second laser beam, wherein the first time and the second time are continuous, the first laser beam is used for displaying the first frame of image, the second laser beam is used for displaying the second frame of image.

Abstract: The present disclosure provides an optical module. The optical module includes a light guide plate and a decorative layer. The light guide plate includes at least one light-entering inclined surface, a first light-emitting inclined surface adjacent to the light-entering inclined surface and a second light-emitting inclined surface opposite to the first light-emitting inclined surface. The decorative layer is covered the second light-emitting inclined surface of the light guide plate by an injection molding process. A display device containing the optical module and a method for manufacturing the optical module are also provided herein.

Abstract: A substrate for display, a display panel and a display device are provided. The substrate for display comprises a base comprising an upper surface and a lower surface which are opposite to each other. The lower surface of the base is formed with scattering microstructures, and the upper surface of the base is formed with a layer structure for display, thereby achieving ultrathin appearance and low cost of the display device.

Abstract: An equipment part may comprise a carrier, a composite film, and a light source. The composite film may be disposed on the carrier and may form a visible side of the equipment part. The composite film may comprise a light-conducting layer into which the light rays emitted by the light source are coupled. A scatter layer may be disposed on a side of the light-conducting layer facing the carrier, with the light rays coupled into the light-conducting layer emitting through said scatter layer. The composite film may comprise a first and a second paint layer, where the first paint layer may be disposed on a side of the scatter layer facing the carrier, and the second paint layer may be disposed on a side of the light-conducting layer facing away from the carrier. The equipment part may be produced via a method for production of such an equipment part.

Abstract: Provided is an illumination device that makes it possible to enhance utilization efficiency of light, and a display device that includes the illumination device. The illumination device includes: a light source that is configured to generate light of a first wavelength; a luminescent body that is configured to wavelength-convert the light of the first wavelength to light of a second wavelength, the second wavelength being different from the first wavelength; and a wavelength selective filter that is provided on a light-incident side of the luminescent body, the wavelength selective filter being configured to transmit the light of the first wavelength and to reflect the light of the second wavelength.

Abstract: Provided are a double-sided transparent conductive film which has blocking resistance and a low reflectance, and is inhibited from scattering reflected light to exhibit good visibility; a roll thereof; and a touch panel.

Abstract: A liquid crystal display device includes a LCD panel having a first polarizer, a first substrate, a second substrate and a second polarizer are sequentially provided from a front surface side, a frame which surrounds the LCD panel and has a first opening having first to fourth sides, a planar light source disposed on the rear surface side of the LCD panel in the first opening, a plurality of optical sheet groups which are disposed between the planar light source and the LCD panel, and an adhesive layer which has a second opening formed along the first to fourth sides of the frame. A front surface side of the adhesive layer is adhered to the LCD panel along at least the first side, and a rear surface side of the adhesive layer is adhered to the plurality of optical sheet groups and the frame along at least the first side.

Abstract: An optoelectronic component includes a first layer sequence being designed to emit or to detect electromagnetic radiation, and a second layer sequence being arranged at a first side of the first layer sequence and designed to reflect the electromagnetic radiation emitted or to be detected by the first layer sequence. The second layer sequence has a first reflector layer, a second reflector layer and an adhesion promoting layer. The first reflector layer contains a first material and is arranged at a first side of the second layer sequence facing the first side of the first layer sequence, the adhesion promoting layer contains a second material and is arranged at a second side of the second layer sequence facing away from the first side of the first layer sequence, and the second reflector layer contains the first material and is arranged between the first reflector layer and the adhesion promoting layer.

Abstract: Provided is a light source device which includes a light guide plate for emitting light entered through one side surface from a front surface thereof, a light source disposed opposing the one side surface of the light guide plate, a rear housing body for housing the light guide plate and the light source, and a heat spreader.

Abstract: A motor vehicle light device, comprising a light guide layer equipped with optical decoupling zones, and a light generator able to send light toward the light guide layer. The light guide layer is locally covered with a light-absorbing material.

Abstract: A backlight device includes a light guide plate including a first incident surface, and one or more second incident surfaces that are connected to the first incident surface and inclined with respect to the first incident surface in a top plan view; at least one green illuminant arranged to face one of (i) the first incident surface and (ii) the one or more second incident surfaces; and at least one red illuminant arranged to face the other of (i) the first incident surface and (ii) the one or more second incident surfaces. At least one of (i) the green light emitted from the green illuminant, and (ii) the red light emitted from the red illuminant, contains a blue component whose emission peak wavelength is 420 nm to 500 nm.

Abstract: A vehicular lamp includes a light source; and a light guide disposed such that light emitted from the light source is incident on an end face of the light guide. The light guide emits light, guided into its interior, heading vehicle-forward from an exit face of the light guide running along the light guide's lengthwise extension. The light guide includes reflection steps formed on a surface of the light guide on a side reverse from the exit face, for reflecting light guided into the light-guide interior toward the exit face; and a plurality of diffusion flutes formed on said end face, each being arcuate in substantially horizontal cross-section through said end face, and each being of constant form in substantially perpendicular extension.

Abstract: A backlight unit that includes a light source driving substrate and first and second light source units connected to the light source driving substrate. The first light source unit includes first and second light sources respectively emitting a first light having a first color and a second light having a second color. The second light source unit may include third and fourth light sources respectively emitting a third light having the first color and a fourth light having the second color. The first light source unit emits a first white color light having a first white color coordinate by mixing the first light and the second light and the second light source unit emits a second white color light having a second white color coordinate by mixing the third light and the fourth light. The first and second white color coordinates belong to different white color coordinate areas.

Abstract: A display panel and a display device are provided. The display panel comprises an upper substrate (10) and a lower substrate (20) cell-assembled, the lower substrate (20) including a base substrate (200), the base substrate (200) including an upper surface (202) close to the upper substrate (10) and a lower surface (203) opposite to the upper surface (202), scattering microstructures (205) being arranged on the lower surface (203) of the base substrate, and a display functional layer being arranged on the upper surface (202) of the base substrate. The display panel can solve a problem that a display device in the prior art cannot meet requirements of ultra-thinning and low cost.

Abstract: An illuminating device includes: a light source; a light guide plate which converts light emitted from the light source into a surface light ray and emits the surface light ray through a front surface of the light guide plate; and an optical sheet which changes a propagation direction of the surface light ray emitted from the light guide plate. The light source is arranged in opposition to one end surface of the light guide plate. A polarization state converting structure to convert a polarization state of the light propagating through the light guide plate is provided in a rear surface of the light guide plate. The polarization state converting structure contains an inclination plane having a ridge line extending in a direction perpendicular to the extension direction of the one end surface.

Abstract: Disclosed is a lighting strip (100) comprising an optical waveguide (120) extending in a length direction of said strip and having a tapered portion tapering from a thin edge (124) to a thick edge (122) in a width direction of said strip; at least one solid state lighting element (110) incorporated in the optical waveguide and arranged to emit light into the optical waveguide in said length direction; and a light scattering pattern (130) on the thick edge of the tapered portion for redirecting the emitted light to the thin edge of the tapered portion. A lighting system, panel support element (210) and modular panel system (200) including such a lighting strip (100) are also disclosed.

Abstract: A light guide plate has a light input end surface from which light is introduced, a light output surface that outputs light spread in a planar manner externally, a flat main light guiding body including the light output surface, a light conducting portion that has a maximum thickness greater than the thickness of the main light guiding body and includes the light input end surface, a first slanted surface provided on the light conducting portion on at least one of a surface near the light output surface and a surface opposite thereto, the first slanted surface inclined from a first location that is thicker than the main light guiding body toward the outer surface of the main light guiding body, and a plurality of first pattern elements provided on the light conducting portion on at least one of a surface near the light output surface and a surface opposite thereto.

Abstract: An electronic device may have a display with backlight structures. The backlight structures may produce backlight that passes through the display layers in the display. The backlight structures may include a light guide plate that distributes light across the display layers. A light source such as a light-emitting diode light source may be used to provide light to the light guide plate. The light source may overlap an edge portion of the light guide plate. A light guide structure having a bend may be coupled between the light source and the light guide plate. The light guide structure may be used to guide the light from the light source to the light guide plate via total internal reflection. A light guide structure may be provided with light leakage promotion structures to evenly distribute light from a centralized light source along the edge of a light guide plate.

Abstract: A display panel and a display device are provided. The display panel comprises an upper substrate (10) and a lower substrate (20) cell-assembled, the lower substrate (20) including a base substrate (200), the base substrate (200) including an upper surface (202) close to the upper substrate (10) and a lower surface (203) opposite to the upper surface (202), scattering microstructures (205) being arranged on the lower surface (203) of the base substrate, and a display functional layer being arranged on the upper surface (202) of the base substrate. The display panel can solve a problem that a display device in the prior art cannot meet requirements of ultra-thinning and low cost.

Abstract: The present invention discloses a backlight module and a display device, so as to improve the luminous effect of the backlight module. The backlight module includes: a backboard; a seal frame and a light guide plate arranged in the backboard; and a light source assembly located between the light guide plate and the seal frame. The light source assembly comprises a light source and a circuit board for controlling the light source. A bottom surface of the circuit board of the light source assembly abuts against an inner surface of the backboard. Since the bottom surface of the circuit board abuts against the inner surface of the backboard, the heat generated by the light source of the light source assembly may be transferred to the backboard through the circuit board and directly dissipated outside from the backboard.

Abstract: A backlight includes a first lightguide having a first portion and a second portion, wherein the second portion is dimensioned smaller that the first portion so as to form a rim along at least a part of the first light guide. At least one light source is positioned under the rim and separated from the first lightguide by a space, where a majority of the light emitted by the at least one light source being along a first axis of the at least one light source. The at least one light source is arranged to position the at least one axis at an angle away from a center of the lightguide in a plane parallel to the rim.

Abstract: The present invention provides a backlight, a display panel and a display device, The backlight includes: a first light source and a second light source, the brightness of light emitted from the first light source is different from that of light emitted from the second light source; and a light guide plate, the first light source and the second light source are disposed above the same end surface of an edge of the light guide plate, and light-emitting surfaces of the first light source and the second light source face the end surface of the edge of the light guide plate, a light mixing structure is disposed on the end surface of the edge of light guide plate and is capable of mixing the light emitted from the first light source and the light emitted from the second light source into light with uniform brightness.

Abstract: The disclosure provides a light guiding plate, used in a backlight module. The light guiding plate comprises a main board body and a sub board body. The main board body has an illuminating surface, a back surface opposite to the illuminating surface, and a first incident surface connected with the illuminating surface and the back surface. A plurality of quantum dots is uniformly embedded inside the sub board body. The sub board body is disposed on the first incident surface. The sub board body completely covers the first incident surface. The sub board body has a second incident surface, and the second incident surface is away from the first incident surface. The second incident surface is disposed opposite to a backlight source of the backlight module. The disclosure further provides a backlight module and a display.

Abstract: A light guide plate and a light source module are described. The light guide plate includes a main body, first stripe microstructures and second stripe microstructures. The main body includes a light incidence surface and an optic surface. The light incidence surface is connected to the optic surface. The optic surface includes a first microstructure region and a second microstructure region arranged sequentially, and the first microstructure region is near the light incidence surface. The first stripe microstructures are disposed in the first microstructure region and extending along a direction from one side near the light-incident surface to the other side away from the light-incident surface. The second stripe microstructures are disposed in the second microstructure region along the direction. A gradient of each second stripe microstructure is gradually varied along the direction.

Abstract: Provided are an optical member capable of implementing optical images having desired shapes through a pattern design, and a lighting device using the same, the optical member including: a three-dimensional effect forming portion provided on a first surface of a base substrate; and a multiple effect forming portion disposed in a lamination form with the three-dimensional effect forming portion, wherein the three-dimensional effect forming portion has multiple main patterns sequentially arranged in a first direction on the first surface and having respective inclined surfaces with an inclination angle with respect to the first surface, wherein the multiple main patterns implement a line shaped beam of a first path by guiding a first incident beam into a first surface direction through refraction or reflection from the inclined surfaces, wherein the multiple effect forming portion are sequentially arranged in a second direction crossing the first direction and has multiple optical patterns.

Abstract: A display device includes a reflective cover, a light guide plate, and a display device. The reflective cover has an opening confined by a top inner surface, at least one side inner surface, and a bottom inner surface of the reflective cover. The light guide plate has a top surface, a bottom surface, and a side face connected to the top surface and the bottom surface, a part of the top surface is covered by the top inner surface of the reflective cover. The display device is placed under the light guide plate and a partial surface of the display device is covered by the bottom inner surface of the reflective cover. The reflective cover bonds the light guide plate and the display device together.

Abstract: A light guide plate receives light and guides the light to a display panel. The light guide plate includes a body and protruding portions. The body includes a first side surface disposed adjacent to the light source, a second side surface facing the first side surface, and an upper surface. Protruding portions are protruded from the upper surface. Each of the protruding portions includes first and second protruding portions sequentially arranged from the first side surface to the second side surface. A width of the first protruding portion in a direction substantially parallel to the first side surface becomes smaller as a distance from the first side surface becomes larger, and a width of the second protruding portion in the direction substantially parallel to the first side surface becomes larger as the distance from the first side surface becomes larger.

Abstract: A display device includes: a first polarizer, a second polarizer, a liquid crystal layer, a color conversion member, an emission layer, and a first substrate. The second polarizer is disposed on the first polarizer. The liquid crystal layer is disposed between the first polarizer and the second polarizer. The color conversion member is disposed between the liquid crystal layer and the second polarizer. The emission layer is disposed on the second polarizer. The emission layer is configured to absorb at least a portion of light passed through the color conversion member and the second polarizer, and to emit light corresponding to at least a blue wavelength. The first substrate is disposed on the emission layer.

Abstract: Provided are a backlight unit and a display apparatus including the same. An optical lens of an optical unit has a shape asymmetrical with respect to a plane that bisectionally divides a center of an optical package. A plurality of reflectors each of which has an embossed or engraved shape are disposed on a top surface of the reflection sheet.

Abstract: Electronic devices may be provided with displays. A display may have a light guide plate. Backlight for the display may be launched into the light guide plate from an array of light-emitting diodes. The light-emitting diodes may be mounted on a metal core printed circuit board having a dielectric layer and a metal layer. The metal core printed circuit board may have an elongated shape that extends along the surface of a metal structure. A weld may be formed along a seam between the metal layer of the metal core printed circuit board and the metal structure. The metal structure may be an electronic device housing, a display chassis member, a heat spreader, a heat pipe, or other structures in an electronic device.

Abstract: A directional backlight may include a light guiding apparatus including at least one transparent optical waveguide for providing large area collimated illumination from localized light sources. The waveguide is arranged in a first part and a second part with a light injection aperture between the respective parts. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality including high brightness displays and high display efficiency.

Abstract: A display device according to an aspect of the present invention includes a cover member and a display panel. The cover member includes a base material and a light-shielding layer provided in a frame-like manner. A double-faced adhesive sheet is provided so as to cover the surface of the base material and an edge portion on an inner circumferential side of the light-shielding layer. A plurality of grooves not deep enough to penetrate the light-shielding layer are provided on the edge portion on the inner circumferential side of the light-shielding layer to which the double-faced adhesive sheet is bonded. The grooves extend from the inner circumference toward an outer circumference of the light-shielding layer. The grooves are arranged side by side along the inner circumference of the light-shielding layer.

Abstract: A display device 10 includes a display panel 11, a light source row 170, a light guide plate 16, a chassis 14 and a recess portion 134b that is fitted the chassis 14. The light guide plate 16 includes a positioning projection portion 160 that is fitted to the recess portion 134b. The positioning projection portion 160 projects outwardly from a side edge surface 16e of the light guide plate 16. The positioning projection portion 160 has a projection, and among rays of light emitted from an end light source 17X included in the light source row 170 and entering the light guide plate through a light entrance surface 16b, narrow-angle light L2 directed outward at an angle ? (a critical angle ?c) with respect to an optical axis L1 enters the projection. The positioning projection portion 160 includes a first edge surface 161 and a second edge surface 162. The first edge surface 161 is parallel to a side edge surface 16e and the narrow-angle light L2 reaches the first edge surface 161.

Abstract: In the light guide plate, a surface of the reflection sheet away from the bottom surface is configured as a reflection surface. Regions of the light guide plate body except the reflection sheets are configured as light transmission regions. The light transmission regions and the reflection sheets are alternately arranged; a plurality of transmission protrusions are disposed at the light transmission region inside the light guide plate body; a reflection coating layer is formed on side surfaces of each of the transmission protrusion. Since the reflection sheets are provided inside the light guide plate body, the reflection sheet reflects light which is directed from the one surface and passes through the display panel, and prevents the light, directed from the other surface of the display apparatus, from passing through the display panel and interfering with the normal display of the one surface.

Abstract: An illumination device having a first light source package including a first electrode lead and a second electrode lead, the first and second electrode leads projecting from a side of the first light source package; a second light source package including a first electrode lead and a second electrode lead, the first and second electrode leads projecting from a side of the second light source package; and a light guide member adjacent to the first and second light source packages, The light guide member includes a light guide panel, and a circuit pattern disposed on a surface of the light guide panel, the circuit pattern including first electrode pads connected to the first electrode leads and second electrode pads connected to the second electrode leads.

Abstract: A backlight module for a liquid crystal display including a light source, a triangular wedge for generating parallel beams, a reflecting device, and a deflection-collimating device, all of which are disposed in front of a liquid crystal display in sequence. The triangular wedge includes a first incident surface, a first emergent surface, and a second emergent surface. The included angle formed between the first emergent surface and the second emergent surface is 5°. The first incident surface is opposite to the light source. The reflecting device is disposed at one side of the first emergent surface to reflect the light rays from the first emergent surface back to the triangular wedge. The deflection-collimating device is disposed between the second emergent surface and the liquid crystal display to refract parallel beams from the second emergent surface to generate light rays vertical to the plane of the liquid crystal display.

Abstract: The invention provides a liquid crystal module and a curved surface display device. According to the liquid crystal module and the curved surface display device, a curved surface liquid crystal panel can be kept stable, and deformation of the curved surface liquid crystal panel is reduced. The liquid crystal module comprises the liquid crystal panel and a backlight source, wherein the backlight source comprises a light guiding plate. The light-emitting surface, facing the liquid crystal panel, of the light guiding plate is an inwards-concave arc-shaped curved surface, the liquid crystal panel is in an inwards-concave arc shape, and the liquid crystal panel is arranged on the light-emitting surface of the light guiding plate through a connecting member, wherein the curvature of the arc of the liquid crystal panel is the same as that of the light-emitting surface of the light guiding plate.

Abstract: A black edge prism sheet is disclosed, having a substrate and a shadowless glue film layer molded on one side of the substrate. The shadowless glue film layer includes: a central region having multiple first geometry structures arranged in parallel to each other, forming a surface of prisms, and a peripheral region. The peripheral region has multiple second geometry structures arranged adjacent to each other. The peripheral region is located outside the central region and extends to edge of the shadowless glue film layer. An ink layer is printed on the multiple second geometry structures.

Abstract: Embodiments of the present invention provide a light guiding plate, a backlight module and a display device. The light guiding plate comprises a body having an effective light guiding region corresponding to an effective display region of a display panel and a peripheral region located at peripheries of the effective light guiding region, and a supporter installed in the peripheral region for providing a support force in a direction opposite to a direction of gravity of the body. Since the supporter provides a support force in a direction opposite to a direction of gravity of the body of the light guiding plate, problem of deformation of the light guiding plate due to gravity can be prevented.

Abstract: A color filter, a display device using the color filter, and a method for preparing the color filter are provided. The color filter is provided with a plurality of pixel regions in one-to-one correspondence to light within a plurality of different wavebands, respectively. The color filer comprises a plurality of stacked dielectric films. Each of the dielectric films reflects light within one waveband and transmits light within other wavebands. In each of the pixel regions, the dielectric film for reflecting light within a waveband corresponding to this pixel region is replaced with a polarization-separation film for reflecting light in a first polarization direction and transmitting light in a second polarization direction. The color filter provided by embodiments of the present invention improves the transmittance of incident light and the utilization ratio of the incident light and can further provide powerful technical support for the enhancement of image display quality.

Abstract: A liquid crystal display panel, a driving method and a fabrication method thereof, and a display device are disclosed. The liquid crystal display panel includes first and second substrates and a PDLC layer therebetween. The PDLC layer is formed by a positive liquid crystal and a polymer matrix, and the positive liquid crystal is initialized to be perpendicular to the substrates. The liquid crystal display panel further includes: a first transparent electrode unit, disposed on the first substrate and connected with a switch element; a second transparent electrode unit, disposed on the second substrate and connected with a first voltage; a third transparent electrode unit, disposed on the first and second substrates. The third transparent electrode unit includes a plurality of third transparent electrodes, each of which has a preset height and connected with a second voltage with a polarity opposite to that of the first voltage.

Abstract: Provided is a liquid crystal display device including: an illumination device, and a liquid crystal panel that is arranged so as to be stacked on a light-emitting surface side of the illumination device, wherein the illumination device includes a light guide plate in which a side end surface extending in a first direction is a light incident portion, a plurality of light-emitting elements that align along a first direction and, each of the plurality of light-emitting elements faces a light-irradiating surface in the light incident portion, and a plurality of groove rows that are formed of a plurality of grooves which are linearly arranged in a second direction on an opposite surface facing the light-emitting surface of the light guide plate, the second direction intersects the first direction in an in-plane direction of the light-emitting surface, and that are arranged in parallel in the first direction.

Abstract: The invention refers to a technical problem of display device, and discloses a display device. The display device includes a backlight source, a rubber frame provided on the backlight source, a LGP and an optical film layer provided in the rubber frame, and shading bars lapping over the rubber frame and the optical film layer respectively, and further includes a display panel, which contains a display panel border lapping over the rubber frame. In the above technical solution, the rubber frame is used for a supporter to support the display panel. Specifically, the display panel border exposed from the display panel laps over the rubber frame, so that the rubber frame is able to support the border as a supporter when the display panel is pressed.

Abstract: An article of manufacture includes first and second micro-features of well-defined shape. In some embodiments, the article of manufacture is a light guide or redirecting film and the second micro-features are micro-optical elements configured to disrupt a specular optical path that includes the second micro-optical element. In other embodiments, the article of manufacture is a patterning tool for use in making an optical substrate. Embodiments of the optical substrate are formed by injection molding or embossing using the patterning tool.

Abstract: Reflection plate, backlight unit and liquid crystal display are provided. In one aspect, there is provided a reflection plate comprising a bottom portion and a side wall portion that extends from circumferences of the bottom portion, wherein an upper surface of the bottom portion includes a diffusion reflection surface and an inner surface of the side wall portion includes a mirror reflection surface.

Abstract: A backlight assembly is provided. The backlight assembly includes a light source, a light guide plate, a light collimation unit, and a guide groove. The light guide plate faces the light source in a first direction. The light guide plate includes a first surface on which light emitted from the light source is incident on and a second surface through which the incident light is emitted. The light collimation unit protrudes from an upper surface of the light guide plate and faces the light source. The guide groove is formed in a lower surface of the light guide plate along the first surface of the light guide plate.

Abstract: An illumination unit includes: a light modulation layer disposed in a gap between a first transparent substrate and a second transparent substrate, and exhibiting a scattering property or transparency with respect to light from a light source, depending on magnitude of an electric field; and an electrode generating an electric field in the light modulation layer, when a voltage is applied thereto, in which the light modulation layer generates a plurality of strip-like illumination light beams extending in a direction intersecting with a first end surface of the first or second transparent substrate with use of light from the light source, when an electric field for a three-dimensional display mode is applied from the electrode to the light modulation layer, and a light emission area per unit area of each of the strip-like illumination light beams varies with a distance from the light source.

Abstract: The image display device includes a front CF-less liquid crystal panel, a first light guide plate, a PDLC panel, and a rear CF-less liquid crystal panel that are arranged sequentially, and a light-guide plate light source unit. At an image displaying time, the PDLC panel becomes in a spreading state. At this time, light source light emitted by the light-guide plate light source unit is guided to the first light guide plate, and is applied to the PDLC panel. The light source light spread by the PDLC panel is applied to the front CF-less liquid crystal panel and the rear CF-less liquid crystal panel. At an image non-displaying time, the PDLC panel becomes in a transmittance state, and transmits background light.

Abstract: A light guide plate includes a main body and trapezoid-like structures. The main body includes a light-incident surface, a first main surface and a second main surface opposite to the first main surface. The trapezoid-like structures are disposed on at least one of the first main surface and the second main surface. The trapezoid-like structures extend along a direction from one side of the main body near the light-incident surface to the other side of the main body away from the light-incident surface. Each of the trapezoid-like structures has a width gradually increasing from one end of the trapezoid-like structure near the light-incident surface to the other end of the trapezoid-like structure away from the light-incident surface. Each of the trapezoid-like structures comprises a flat surface and two side surfaces, and the side surfaces are respectively connected to two sides of the flat surface.

Abstract: A light guide plate includes a light introduction unit that confines light incident from a point light source through the light incident surface and a light guide plate body. The light introduction unit includes an inclined surface inclined toward an end of a surface of the light guide plate body from a surface in a portion having the thickness greater than that of the light guide plate body. The light guide plate body includes a directivity conversion pattern located between the light introduction unit and an effective illumination region of the light guide plate body. The directivity conversion pattern converts a directivity direction of the light passing through an effective illumination region from the light introduction unit such that an angle formed by the light and a direction perpendicular to the light incident surface increases when viewed from a direction perpendicular to a light exit surface.