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Light Guide Plate patents



      
           
This page is updated frequently with new Light Guide Plate-related patent applications. Subscribe to the Light Guide Plate RSS feed to automatically get the update: related Light RSS feeds. RSS updates for this page: Light Guide Plate RSS RSS


Illumination device, display device, and television reception device

Sharp

Illumination device, display device, and television reception device

Dual-sided display device and its backlight module

Shenzhen China Star Optoelectronics Technology

Dual-sided display device and its backlight module

Dual-sided display device and its backlight module

Sharp

Lighting device, display device and television device


Date/App# patent app List of recent Light Guide Plate-related patents
07/23/15
20150205165 
 Direct backlight module patent thumbnailDirect backlight module
The present invention provides a direct backlight module, which includes a backplane, a plurality of led light bars retained on the backplane, a plurality of light guide plates arranged alternate with respect to the led light bars, and a diffusion plate mounted on the backplane. The direct backlight module includes the light guide plates that are arranged between the led light bars to improve utilization rate of light energy of the led light bars so as to reduce the number of led lights included in the led light bars to thereby reduce the manufacturing cost.
Shenzhen China Star Optoelectronics Technology Co. Ltd.


07/23/15
20150205038 
 Illumination device, display device, and television reception device patent thumbnailIllumination device, display device, and television reception device
A backlight device is provided with the following: leds; a light guide plate formed in a rectangular plate shape and having at the end surfaces thereof a light-receiving face opposing the leds and a reflection surface disposed on the side opposite the light-receiving face, and having on the plate surface thereof a light-emitting surface that emits light; a portion to be supported provided to the corner part, from among the corner parts of the light guide plate, that is disposed on the opposite surface side; a supporting portion that supports the light guide plate in a first direction and a second direction by coming into contact with the portion to be supported, when the first direction is a direction in which the leds and the light guide plate are lined up, and the second direction is a direction that is orthogonal to the first direction and that follows along the light-emitting surface of the light guide plate; and a inclined portion that is provided to the portion to be supported and that forms a slanted shape with respect to both the first direction and the second direction, and by facing outward in the second direction is distanced from the leds in the first direction.. .
Sharp Kabushiki Kaisha


07/23/15
20150205037 
 Dual-sided display device and its backlight module patent thumbnailDual-sided display device and its backlight module
The dual-sided display device contains a light guide plate having at least a light entry face, a first light emission face, and a second light emission face oppositely positioned to the first light emission face; at least a light source unit adjacent to the light entry face; at least a heat dissipation base carrying the light source unit and dissipating the heat produced by the light source unit; a first frame member and a second frame member, where the first frame member is positioned above the first light emission face, the second frame member is positioned below the second light emission face, the first and second frame members are fixedly joined to the heat dissipation base, and the light guide plate is fixedly positioned in an accommodation space; and a first display panel and a second display panel, where the first display panel is fixedly positioned on the first frame member oppositely to the first light emission face, the second display panel is fixedly positioned beneath the second frame member oppositely to the second light emission face.. .
Shenzhen China Star Optoelectronics Technology Co. Ltd.


07/23/15
20150205036 
 Lighting device, display device and television device patent thumbnailLighting device, display device and television device
A backlight unit 24 includes a light guide plate 20, a first led 28, a second led 29, and a frame 14. The light guide plate 20 includes two end surfaces configured as light entrance surfaces 20a1 and 20a2, a light exit surface 20b on the front side, and an opposite surface 20c on the rear side.
Sharp Kabushiki Kaisha


07/23/15
20150205034 
 Light guide plate comprising decoupling elements patent thumbnailLight guide plate comprising decoupling elements
The invention relates to a planar light distribution module for a display, comprising a light guide plate through which light coupled in via at least one side face can propagate by means of total reflection, and at least one out-coupling device (2), which is applied on one or both of the main faces of the light guide plate (1), is in optical contact therewith and has a multiplicity of holographic optical elements (13) formed therein, which are configured in such a way that they can couple light out of the light guide plate (1), the light distribution module being characterized in that the holographic optical elements (13), independently of one another, have an extent of at least 300 μm in at least one spatial axis extending parallel to the surface of the out-coupling device (2). The invention furthermore relates to an optical display, in particular an electronic display..
Bayer Materialscience Ag


07/23/15
20150205032 
 Directional backlight unit patent thumbnailDirectional backlight unit
Provided is a directional backlight unit that enables a three-dimensional (3d) image to be viewed at various viewing angles. The directional backlight unit includes a light source configured to emit light, a first reflector configured to reflect light emitted from the light source, a second reflector configured to additionally reflect the light reflected by the first reflector, a light guide plate configured to accommodate the light reflected by the first reflector or the second reflector and output the light to an outside, and an angle adjustor configured to rotate the first reflector or the second reflector to a reflective angle.
Electronics And Telecommunications Research Institute


07/23/15
20150205030 
 Panel light patent thumbnailPanel light
A panel light includes a light guide plate, l-typed frames and a light bar. The l-typed frames are connected with each other and surround edges of the light guide plate.
Lextar Electronics Corporation


07/16/15
20150198763 
 Backlight module and liquid crystal display device using same patent thumbnailBacklight module and liquid crystal display device using same
The present invention provides a backlight module and a liquid crystal display device using the backlight module. The backlight module includes a backplane (2), a light guide plate (4) arranged in the backplane (2), a backlight source (6) arranged in the backplane (2), and a heat dissipation plate (8) arranged between the backlight source (6) and the backplane (2).
Shenzhen China Star Optoelectronics Technology Co., Ltd.


07/16/15
20150198762 
 Led package and a backlight unit comprising said led package patent thumbnailLed package and a backlight unit comprising said led package
A light emitting diode (led) package includes: a main body mounted on a substrate; a light emitting diode that is mounted in the main body and emits light; and a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted. A backlight unit includes: a light guide plate configured to allow a light source to proceed to a liquid crystal panel; a light emitting diode (led) mounted in a main body mounted on a substrate and generating a light source; and an led package having a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted, and being mounted on the light guide plate..

07/16/15
20150198757 
 Visual display backlight unit patent thumbnailVisual display backlight unit
A backlight unit suitable for use in illuminating a liquid crystal display panel of a display device. The backlight unit comprises a light guide plate, the light guide plate comprising a glass substrate with at least one edge, an intermediate waveguide physically and optically coupled to the at least one edge along a length of the edge, and a light source optically coupled to the intermediate waveguide.
Corning Incorporated


07/16/15
20150198756 

Optical pattern sheet, backlight unit, and liquid crystal display having the same


A backlight unit including an optical pattern sheet and a liquid crystal display are provided. The backlight unit includes a light guide plate, a light source portion arranged adjacent to a side surface of the light guide plate to emit light, a mold frame having an extension portion that covers an upper portion of the light source portion and a part of an upper portion of the light guide plate, and an optical pattern sheet arranged on a lower portion of the extension portion to shade or diffuse incident light, wherein the optical pattern sheet includes a base film and an optical pattern portion positioned on the base film..
Samsung Display Co., Ltd


07/09/15
20150192731 

Bendable display apparatus


A display apparatus in which a display module in a state of a curved surface is provided. The display apparatus includes: a display panel configured to display an image and which is bendable; a light guide plate which guides light toward the display panel; and a guide unit which guides the light guide plate to be maintained in a state of a curved surface, wherein the guide unit includes a shape of a curved surface in which both ends of the guide unit protrude forward relative to a center portion of the guide unit..
Samsung Electronics Co., Ltd.


07/09/15
20150192729 

Lighting device, display device, and television device


A backlight unit 12 includes a chassis 14, an led 17, a light guide plate 19, a duct member 22, and dissipative led attachment portion 30. The chassis 14 includes a light exit portion 14c through which light exits.
Sharp Kabushiki Kaisha


07/09/15
20150192727 

Display apparatus


A display apparatus includes a display panel, a light guide plate, at least one light source and at least one reflective body. The light guide plate is disposed below the display panel.
Au Optronics Corporation


07/09/15
20150192726 

Backlight module, liquid crystal panel and display device


The embodiments of the present invention disclose a backlight module, a liquid crystal panel and a display device. The backlight module comprises: a light guide plate (5), a plurality of polarization-maintaining optical fibers (3) and a plurality of monochrome laser light sources (1) provided at a lateral portion of the light guide plate (5).
Boe Technology Group Co., Ltd.


07/09/15
20150192725 

Light guide comprising decoupling elements


The invention relates to a planar light distribution module for a display, comprising a light guide plate through which light coupled in via at least one side face can propagate by means of total reflection, and at least one planar out-coupling device (2), which is applied on one or both of the main faces of the light guide plate (1), is in optical contact therewith and has a multiplicity of holographic optical elements (13) formed therein, which are configured in such a way that they can couple light out of the light guide plate (1), the light distribution module being characterized in that the holographic optical elements (13) are arranged in the out-coupling device (2) without translational symmetry. The invention furthermore relates to an optical display, in particular an electronic display, which contains a light distribution module according to the invention..
Bayer Materialscience Ag


07/09/15
20150192724 

Area light source device and display device using same


The present invention relates to an area light source device and a display device using the area light source device. The present invention includes a point light source, and a light guide plate.
Mitsubishi Electric Corporation


07/09/15
20150192265 

Vehicle headlight device


A vehicle headlight device includes a light guide plate, a light source device and a light-pattern adjustment plate. A thickness of the light guide plate is gradually increased from a light incident side to a light reflection side, and the light reflection side is provided with a parabolic surface.
Coretronic Corporation


07/02/15
20150185540 

Display device and television device


A liquid crystal display device 10 includes an led unit 30, a liquid crystal panel 11, a light guide plate 16, a chassis 14, and a frame 13. The led unit 30 includes an led 17 and an led board 18.
Sharp Kabushiki Kaisha


07/02/15
20150185411 

Lighting device, display device and television device


A backlight device 12 includes leds 17, a light guide plate 16, a chassis 14, and a light source mounting member 30. The light guide plate 16 included a front surface configured as a light exit surface 16a, a rear surface configured as an opposite surface 16c, and two side surfaces configured as light entrance surface 16b.
Sharp Kabushiki Kaisha


07/02/15
20150185410 

Backlight assembly and display including the same


A backlight assembly includes a light source portion configured to emit light and a wavelength conversion member disposed on an upper portion of the light source portion. The wavelength conversion member is configured to convert a wavelength of the light emitted from the light source portion.
Samsung Display Co., Ltd,


07/02/15
20150185409 

Backlight assembly including light leakage preventing unit and liquid crystal display including the same


Provided is a backlight assembly including: a light source which generates and emits light; a light leakage preventing member including a first horizontal portion and a first vertical portion; a light guide plate including a light input surface and a light output surface; an optical sheet disposed on the light output surface of the light guide plate; and a bottom chassis configured to receive the light source, the light leakage preventing member and the light guide plate therein, in which the light source is disposed at a side of the light guide plate, the first vertical portion of the light leakage preventing member is attached to a rear surface of the light source, and the first horizontal portion is positioned above the light source to overlap a portion of the light output surface of the light guide plate.. .
Samsung Display Co., Ltd.


07/02/15
20150185404 

Light guide plate and fabricating the same


Disclosed herein is a light guide plate formed by injection molding of an aromatic polycarbonate resin that is a polymer of an aromatic dihydroxy compound and a diaryl carbonate. The aromatic dihydroxy compound and the diaryl carbonate are present in a mole ratio of about 1:1.02 to about 1:1.35, and the aromatic polycarbonate resin has a weight average molecular weight from about 10,000 g/mol to about 18,000 g/mol and includes about 5 mol % to about 30 mol % of terminal hydroxyl groups relative to total moles of terminal groups.
Samsung Sdi Co., Ltd.


07/02/15
20150185398 

Light guide plate


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.
Radiant Opto-electronics Corporation


07/02/15
20150185395 

Edge-type backlighting module and light guide plate


The present disclosure provides an edge-type backlight module including a back cover, a led light source and a light guide plate. The back cover includes a bottom plate and a plurality of sidewalls.
Hon Hai Precision Industry Co., Ltd.


07/02/15
20150185394 

Light source module and display device


A light source module that includes a light guide strip, at least one light-emitting device, and a light guide plate (lgp) is provided. The light guide strip includes at least one light-incident end and a light-emitting surface.
E Ink Holdings Inc.


07/02/15
20150185392 

Light guide plate


A light guide plate includes a light entry surface with first elongated elements, and a light exit surface with second elongated elements. Each of the first and second elongated elements serves to guide light, and has a cross-section in a shape of a circular segment..
Radiant Opto-electronics Corporation


06/25/15
20150177551 

Liquid crystal display device


The present invention discloses an lcd device. The lcd device includes a bezel, a light guide plate on the light source for guiding light, an optical film on the light guide plate for processing the guided light through the light guide plate, an lcd panel directly carried on the optical film, a driving chip, a fpc with metal wires, wherein the driving chip bonds with the fpc and is used for being coupled to the lcd panel via the metal wires of the fpc, and a heat sink attached between the bezel and the fpc and used for dissipating heat generated from the driving chip..
Shenzhen China Star Optoelectronics Technology Co. Ltd.


06/25/15
20150177453 

Lighting device, display device, and television device


A backlight unit includes a light guide plate 16, leds 17, a chassis 14, a frame 13 and positioning members 30. The light guide plate 16 includes two edge surfaces that are light entrance surfaces 16b and a front surface that is a light exit surface.
Sharp Kabushiki Kaisha


06/25/15
20150177449 

Backlight device and display apparatus


The backlight device included in the display apparatus is provided with: a light guide plate, a front chassis (pressing member) disposed at the front side of the light guide plate; and a heat sink (supporting member) having a plate-shaped connecting part (connecting plate) disposed at the side of the light guide plate, to be connected with other members. A through hole is formed in the connecting part, and a nut, which is necessary for connecting a bezel and the front chassis with a screw, is press-fitted into the through hole.
Sakai Display Products Corporation


06/25/15
20150177448 

Side-edge backlight module


The present invention provides a side-edge backlight module, which includes: a backplane (2), a backlight source (4) mounted in the backplane (2), and a light guide plate (6) mounted in the backplane (2). The backlight source (4) includes a circuit board (42), a plurality of led lights (44) mounted to and electrically connected with the circuit board (42), a plurality of vertical heat dissipation boards (46) mounted to the circuit board (42) and arranged between the led lights (44), and horizontal heat dissipation boards (48) perpendicularly connected to the vertical heat dissipation boards (46).
Shenzhen China Star Optoelectronics Technology Co. Ltd.


06/25/15
20150177446 

Display device and television device


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.
Sharp Kabushiki Kaisha


06/25/15
20150177438 

Display having backlight with narrowband collimated light sources


A display has an array of display pixels formed from display layers such as one or more polarizer layers, a substrate on which an array of display pixel elements such as color filter elements and downconverter elements are formed, a liquid crystal layer, and a thin-film transistor layer that includes display pixel electrodes and display pixel thin-film transistors for driving control signals onto the display pixel electrodes to modulate light passing through the display pixels. A light source such as one or more laser diodes or light-emitting diodes may be used to generate light for the display.
Apple Inc.


06/25/15
20150176775 

Display having backlight with narrowband collimated light sources


A display has an array of display pixels formed from display layers such as one or more polarizer layers, a substrate on which an array of display pixel elements such as color filter elements and downconverter elements are formed, a liquid crystal layer, and a thin-film transistor layer that includes display pixel electrodes and display pixel thin-film transistors for driving control signals onto the display pixel electrodes to modulate light passing through the display pixels. A light source such as one or more laser diodes or light-emitting diodes may be used to generate light for the display.
Apple Inc.


06/18/15
20150170582 

Lighting device, display device, and television device


A backlight unit 12 includes a light guide plate 16, first leds 17a, second leds 17b, first support members 28, and second support members 29. The first leds 17a are opposed to a first light entrance surface 16na that is a first edge surface 16e1 of the light guide plate 16.
Sharp Kabushiki Kaisha


06/18/15
20150168781 

Direct-light type backlight module


A direct-light type backlight module includes a light guide module, and a light source module configured for optical coupling to the light guide module. The light guide module includes a back cover and a light guide plate fixed on the back cover.
Hon Hai Precision Industry Co., Ltd.


06/18/15
20150168770 

Liquid crystal display device


An embodiment of the present invention provides a liquid crystal display device including: a backlight unit including a light guide plate under a liquid crystal panel and a light source at a first side of the light guide plate; a main frame surrounding the backlight unit and including a first guide wall and a first supporting portion, the first guide wall protruding from each corner of an upper surface of the main frame, and the supporting portion extending from adjacent two corners of the upper surface at the first side toward the backlight unit; a light-shielding tape attached on the upper surface of the main frame by being guided by the first guide wall and including a first chamfer portion at each corner and a protrusion at adjacent two corners at the first side, wherein the first chamfer portion and the protrusion correspond to the first guide wall and the first supporting portion, respectively; and a liquid crystal panel disposed over the backlight unit and attached on the light-shielding tape.. .
Lg Display Co., Ltd.


06/18/15
20150168638 

Planar light source and producing light-emitting device


A planar light source comprises a light guide plate and a light-emitting apparatus disposed on a lateral surface of the light guide plate. The light-emitting apparatus comprises a light-emitting device, a case, and a sealing resin.
Toyoda Gosei Co., Ltd.


06/18/15
20150168634 

Display device and backlight module thereof


A display device includes a backlight module and a display panel. The backlight module includes a light guide plate, a light source, a reflecting sheet and a light transmissible member.
Qisda Corporation


06/18/15
20150168629 

Backlight module


The present invention provides a backlight module, which includes: a backplane (2), a light guide plate (4) arranged in the backplane (2), a backlight source (6) arranged in the backplane (2) and located at one side of the light guide plate (4), a light shield (8) arranged between the backlight source (6) and the backplane (2), and a side reflection plate (10) arranged between the light guide plate (4) and the backlight source (6). The backlight source (6) includes an led substrate (62) and a plurality of led lights (64) mounted on the led substrate (62).
Shenzhen China Star Optoeclectronics Technology Co.,ltd.


06/18/15
20150168628 

Mat toy


A mat toy includes a mat and an illuminating module on the mat. The illuminating module has a light guide plate.
D.j. Toys Enterprise Corp.


06/18/15
20150167951 

Electronic device with light-emitting diode array


Electronic devices may be provided with displays. A display may have a light guide plate.
Apple Inc.


06/11/15
20150160406 

Backlight module and liquid crystal display device using the same


A backlight module used in a liquid crystal display (lcd) device is proposed. The backlight module includes a light source, a back bezel, a light guide plate (lgp), and an optical film.
Shenzhen China Star Optoelectronics Technology Co. Ltd.


06/11/15
20150160403 

Edge-light type planar light source device


The present invention makes it possible to (i) obtain a sufficient and uniform luminance on an entire surface, which is irradiated with light, of a light guide plate and (ii) achieve a reduction in cost. Led light source substrates (140a) and (140b) are each configured to emit light having a first luminance gradient on an edge of a range, to be irradiated with light, which first luminance gradient is smaller than a second luminance gradient of light having a substantially uniform luminance on an entire range to be irradiated with light..
Sharp Kabushiki Kaisha


06/11/15
20150160401 

Backlight and liquid-crystal display apparatus using the same


A backlight includes: a light guide plate on which blue light from the blue led falls; a quantum dot enhancement film laminated on the light guide plate and configured to convert blue light passing therethrough into light having peak characteristic for green and red; a frame configured to house the light guide plate and the quantum dot enhancement film, and an inner peripheral surface of the frame has a reflectivity not higher than 50% with respect to the blue light from the blue led.. .
Japan Display Inc.


06/11/15
20150160397 

Display device and manufacturing method thereof


The present invention relates to the field of panel display technology, and provides a display device and a manufacturing method thereof. The display device includes a light guide plate; a light-emitting element located on one side of the light guide plate; and a light mixing unit located between the light guide plate and the light-emitting element which unit includes a sealed transparent container and a light mixing substance filled in the container, wherein the light mixing unit enables light from the light-emitting element to be subjected to one or more of scattering, refraction and diffusion.

06/04/15
20150153607 

Lcd device


The present invention discloses a liquid crystal display (lcd) device, which includes a display panel, a back light module, a flexible printed circuit board, and a chip. The back light module includes a back cover.
Shenzhen China Star Optoelectronics Technology Co. Ltd.


06/04/15
20150153505 

Light guide plate and backlight module having same


A light guide plate in a backlight module includes a light guide layer, a carrier layer, and a reflection sheet. The light guide layer includes a first surface and an opposite second surface.
Hon Hai Precision Industry Co., Ltd.


06/04/15
20150153504 

Light-emitting diode (led) package and display device having the same as light source


A light-emitting diode (led) package and a display device having the same are disclosed. In one aspect, the display device includes a display panel and a backlight assembly including a light-emitting diode (led) package configured to output light via an opening and a light guide plate configured to guide the emitted light to the display panel.
Samsung Display Co., Ltd.


06/04/15
20150153503 

Backlight module and transparent display device comprising the same


The present invention relates to a backlight module and a transparent display device comprising the same. The backlight module disclosed by the present invention comprises: a half-wave plate having a disposing surface; a light guide plate having a plurality of light guide units, the light guide units are adjacent to each other and are disposed on the disposing surface; and a light source irradiating a light into the light guide plate in the direction vertical to the normal line of the disposing surface..
Innolux Corporation


06/04/15
20150153502 

Backlight module


The present disclosure relates to a backlight module, including a backlight frame and a light guide plate placed inside the backlight frame, wherein a light-emitting element is provided at the inner side of a side wall of the backlight frame, a first reflective sheet is provided at a lower location under the light guide plate along the vertical direction, and a second reflective sheet is provided at a lower location under the light-emitting element along the vertical direction, the second reflective sheet being extended towards the inside of the backlight frame to a lower location under the light guide plate along the vertical direction. Through providing the second reflective sheet located under the light-emitting element and extending to a lower location under the light guide plate, the light scattered out under the light-emitting element can be guided into the light guide plate, thus effectively enhancing the efficiency of incident light guided into the light guide plate from the light-emitting element..
Shenzhen China Star Optoelectronics Technology Co. Ltd.


06/04/15
20150153500 

Illumination device and apparatus provided with illumination device


An illumination device that illuminates a portion of an outer peripheral surface of an apparatus in a linear manner, the illumination device includes, a light guide plate, two edges of which have a predetermined distance between each other, wherein one of the edges is a light emission surface that is disposed on an outer peripheral surface side of the apparatus and the other one of the edges is a light incident surface that is disposed on an inner side of the apparatus; and at least one light source that is disposed so as to face the light incidence surface, wherein isosceles triangle shaped prisms that have the same base angles are formed in the light incident surface and the light emission surface.. .
Fujitsu Limited


05/28/15
20150146453 

Planar light source device and display device having the same


A planar light source device includes a housing having an opening, point light sources arranged on at least one side surface in the housing, a light guide plate arranged in the housing and having a light-emitting surface facing the opening and a counter-emitting surface being opposite to the light-emitting surface, a reflecting sheet arranged on the counter-emitting surface side of the light guide plate in the housing, and a reflecting region arranged on at least a part of a peripheral portion of the point light sources on the side surface on which the point light sources are arranged in the housing and absorbing light having at least some wavelength.. .
Mitsubishi Electric Corporation


05/28/15
20150146144 

Border masking structures for liquid crystal display


A display may have a thin-film transistor layer and color filter layer. The display may have an active area and an inactive border area.
Apple Inc.


05/28/15
20150146136 

Side-light type backlight module


A side-light type backlight module includes a front bezel, an optical film, a light guide plate, a box-shaped back cover, and a light source board. The optical film is positioned on the light guide plate.
Hon Hai Precision Industry Co., Ltd.


05/28/15
20150146113 

Display device and television device


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.
Sharp Kabushiki Kaisha


05/28/15
20150146110 

Lighting device, display device and television device


A backlight unit 24 includes a light guide plate 20, a heat dissipation member 36, a led board 30, and leds 27 mounted on the led board 30. The light guide plate 20 includes a light exit surface 20b on a front surface thereof, an opposite surface 10c on a rear surface thereof, a groove 20d in the opposite surface 20c, a light entrance surface 20d1 on one side surface in the groove 20d, and an opposite side surface 20d3 on another side surface in the groove 20d.
Sharp Kabushiki Kaisha


05/28/15
20150146109 

Display device and television device


A liquid crystal display device 10 includes an led 17, a liquid crystal panel 11, a light guide plate 16 including at least one side-surface as a light entrance surface 16b, a chassis 14 having a bottom plate 14a, a frame 13, an led board 18, a heat dissipation member 19 having heat dissipation properties, and a fixing screw 40. The frame 13 and the chassis 14 sandwich the liquid crystal panel 11, the led 17, and the light guide plate 16 therebetween.
Sharp Kabushiki Kaisha


05/21/15
20150138836 

Illuminating device, liquid crystal display device, electronic device, and manufacturing light guide panel


When first grooves are formed by irradiating a lower surface facing a light outgoing surface of a light guide plate for an illuminating device with laser beams, an outer circumferential region is firstly irradiated with the laser beams to form second grooves. Then, the second grooves are inspected.
Seiko Epson Corporation


05/21/15
20150138835 

Light guide plate, making the same, backlight module, and display device


Embodiments of the invention provide a light guide plate comprising a light guide layer and a reflective layer; a lower surface of the light guide being a reflective surface; an upper surface of the light guide layer being a stepped surface and comprising an upper step surface, a lower step surface and an inclined surface connecting the upper step surface and the lower step surface; wherein the lower step surface is a light exiting surface and the reflective surface is coated on the inclined surface. Embodiments of the invention further provide a method for manufacturing the light guide plate, a backlight module provided with such a light guide plate, and a display device provided with such a backlight module..
Beijing Boe Optoelectronics Technology Co., Ltd.


05/21/15
20150138834 

Light source device and electronic apparatus


A light source device includes: a light source; a package that houses the light source and has an opening section configured to emit light from the light source; a light reduction unit provided on the opening section and configured to reduce the light emitted from the opening section; and a light guide plate having: an incidence surface configured such that the light reduced by the light reduction unit is incident on the incidence surface; a light guide section configured to guide the light which is incident on the incidence surface; and an emission surface configured to emit the light guided by the light guide section.. .
Nikon Corporation


05/21/15
20150138833 

Backlight module and liquid cyrstal display device including the same


The present disclosure relates to a backlight module and a liquid crystal display device including the backlight module. The backlight module includes a light guide plate and a planar reflecting sheet arranged below the light guide plate, wherein a plurality of lattice points are provided on the upper surface of the light guide plate so that the upper surface forms a light-emitting surface, and a plurality of cylindrical projections in contact with the planar reflecting sheet are formed on the lower surface of the light guide plate.
Shenzhen China Star Optoelectronics Technology Co., Ltd


05/21/15
20150138831 

Edge light-type surface light source device and illumination device


A surface light source device (10) includes: a light guide plate (120); and a plurality of led light source substrates (140) each emitting light into the light guide plate (120) through a side surface of the light guide plate (120), the led light source substrates (140) (i) being provided at a pair of sides of the light guide plate (120), the pair of sides facing each other and (ii) having a length shorter than a length of each of the pair of sides at which the plurality of led light source substrates (140) are provided.. .
Sharp Kabushiki Kaisha


05/21/15
20150138828 

Backlight source and display device


Embodiments of the invention provide a backlight source and a display device. An aperture is formed in a frame of the backlight source.
Tianma Micro-electronics Co., Ltd.


05/21/15
20150138750 

Keyboard


A keyboard includes a transparent board, keyswitches, and a backlight module. The keyswitches could move upward and downward relative to the transparent board.
Wistron Corporation


05/21/15
20150138647 

Light reflecting member, light beam extension device, image display device, and optical device


An image display device includes an image generating device, a light guide unit which includes a light guide plate and first and second deflection sections, and a light beam extension device which extends light incident from the image generating device, along a z direction when an incident direction of light incident on the light guide plate is set to be an x direction and a direction of propagation of light in the light guide plate is set to be a y direction, and emits the light to the light guide unit, wherein the light beam extension device includes a first reflecting mirror on which light from the image generating device is incident, and a second reflecting mirror which emits light incident from the first reflecting mirror to the light guide unit, and each of the first and second reflecting mirrors has a light reflecting surface having a sawtooth-shaped cross-sectional shape.. .
Sony Corporation


05/21/15
20150138646 

Optical element, image display device and manufacturing same


An optical element includes a light guide plate that has therein a light transmissive flat plate member on which a transflective layer is formed, and a layer of a light transmissive adhesive or a light transmissive resin layer that uniformly covers the light guide plate. The refractive index of the layer of the adhesive or the resin layer is set to a refractive index different from that of the light guide plate.
Seiko Epson Corporation


05/21/15
20150138472 

Backlight module and liquid crystal display module using same


The present invention provides a backlight module and a liquid crystal display module using the backlight module. The backlight module includes: a backplane (2), a backlight source (4) mounted in the backplane (2), and a light guide plate (6) mounted in the backplane (2).

05/21/15
20150138447 

Lighting device, display device, and television device


A liquid crystal display device 10 includes leds 17, a light guide plate 16, a mating portion 33, a positioning portion 34, a heat dissipation member 19 on which the leds 17 are mounted, and a restriction portion 35. The light guide plate 16 includes a peripheral surface facing the leds 17 and configured as a light entrance surface 16b through which light from the leds 17 enters and a plate surface configured as a light exit surface 16a through which light exits.
Sharp Kabushiki Kaisha


05/14/15
20150131323 

Illumination apparatus, manufaturing light guide plate, back light module and manufacturing the same


A method for manufacturing a light guide apparatus includes the following steps. A first mold and a second mold are provided.

05/14/15
20150131322 

Backlight frame and backlight module


The present disclosure relates to a backlight frame including a frame body, which has a first and a second side wall opposite to each other, and a third and a fourth side wall opposite to each other, wherein at least one first protrusion is arranged in the frame body close to the first side wall, at least one second protrusion is arranged wall in the frame body close to the second side, at least one third protrusion is arranged in the frame body close to the third side wall, and at least one fourth protrusion is arranged in the frame body close to the fourth side wall. The first, second, third and fourth protrusions together define a placement area for disposing a light guide plate.

05/14/15
20150131320 

Backlight module


A backlight module including a light guide plate is disclosed. The light guide plate has a light emitting plane, a bottom plane opposite to the light emitting plane and a light incident plane connecting the light emitting plane and the bottom plane, a plurality of arc protrusions disposed on the first light incident plane; and a transparent layer disposed upon each of the arc-protrusions.

05/14/15
20150131315 

Direct type backlight module


A backlight module includes a light guide assembly and a light source assembly. The light guide assembly includes a back cover, a reflective sheet, a light guide plate, and an optical film.

05/14/15
20150131309 

Illumination device and display device


Provided are an illumination device capable of improving the uniformity in brightness of the illumination light, and a display device using the same. An illumination device is provided with: a plurality of light sources arranged in a row in one direction; and a light guide plate which has, along a side edge face, a light receiving face facing the light source, guides light entering through the light receiving face, and outputs illumination light from a light emitting surface disposed on the front surface; the light guide plate having a plurality of prisms and a plurality of prisms provided in an indented manner on the front or rear surface and arranged in a row along the longitudinal direction of the light receiving face; the prisms being formed spanning between the light receiving face and the opposing face opposite the light receiving face; and the prisms being formed, between adjacent prisms, deeper than the prisms within a predetermined range in the vicinity of the light receiving face..

05/14/15
20150131308 

Backlight module


A backlight module includes a light guide plate and a supporting assembly. The light guide plate has a light input surface, a light output surface and a back surface.

05/14/15
20150131307 

Backlight module


A backlight module is provided and includes a back plate, a light guide plate, a light source, a frame, at least one first positioning member and at least one second positioning member. The back plate includes at least one first limiting hole.

05/14/15
20150131028 

Backlight unit and display device including the same


A backlight unit includes a light source providing a blue light; a light guide plate of glass at a side of the light source; an optical sheet on the light guide plate; a reflective sheet under the light guide plate; and an optic change part including a yellow fluorescent material, wherein the blue light is changed into a white light by the optical change part.. .

05/14/15
20150131027 

Backlight module and display apparatus thereof


A backlight module includes a light guide plate, alight emitting diode, a limiting block, an elastic member, and a bezel having a containing structure. The light guide plate is disposed in the containing structure and has a side surface and a light entrance surface opposite to the side surface.

05/07/15
20150124482 

Light source device and display device


Provided are a light source device and a display device capable of preventing the user from recognizing unevenness in luminance due to reflection, by a reflection sheet, of the unevenness in luminance occurring at a cut-out part of a light guide plate. For cut-out parts formed on a light guide plate and a reflection sheet, respectively, to correspond to a positioning part which is located in a housing accommodating, in a stacked manner, the light guide plate and the reflection sheet for reflecting light entering the light guide plate to one surface side, the reflection sheet being located on another surface side of the light guide plate, and which determines a position of the light guide plate and the reflection sheet in the housing, the cut-out part of the light guide plate is configured to be included in the cut-out part of the reflection sheet in the direction of stack, thereby preventing unevenness in luminance occurring at the cut-out part of the light guide plate from being reflected to the side of one surface of the light guide plate..
Sakai Display Products Corporation


05/07/15
20150124197 

Backlighting assembly combined with lcd assembly and combining the same using a double-sided adhesive member


The high intensity light output of edge lighting point light sources such as leds may generate undesired leakage light that is optically conducted by way of a continuum of the material of a components affixing adhesive member. In accordance with present disclosure, air filled grooves or other such discontinuities are formed in the adhesive member along respective light output pathways of the respective point light sources.
Samsung Display Co., Ltd.


05/07/15
20150124196 

Backlight unit and liquid crystal display device using the same


The backlight unit whose luminance life can be extended without increasing the cost and the power consumption includes: a light source unit to which a light source is mounted; a light guide plate which converts light from the light source to a surface light beam and emits the beam; and supporting members provided between the light source unit and the light guide plate, wherein each of the supporting members is a member having a function of shortening the distance between the light source unit and the light guide plate by the changes generated over time.. .
Nlt Technologies, Ltd.


05/07/15
20150124177 

Lighting device, display device and television device


A backlight device (a lighting device) 12 includes leds (a light source) 17, a light guide plate 16, a chassis 14, led boards 18, and heat dissipation members 19. The light guide plate 16 includes an end surface that is opposite the leds 17 and configured as a light entrance surface 16b through which light from the leds 17 enters.
Sharp Kabushiki Kaisha


04/30/15
20150117059 

Multidirectional lighting module for implementing multiple colors and electronic device having the same


A multidirectional lighting module for implementing multiple colors and an electronic device having the same are provided. The multidirectional lighting module includes light emitting diodes (leds), a circuit board on which the leds are mounted, and a light guide plate that emits light incident from the leds in at least two directions.
Samsung Electronics Co., Ltd.


04/30/15
20150117055 

Display apparatus


A display apparatus is provided. A display unit has a display region.
E Ink Holdings Inc.


04/30/15
20150117054 

Display device


A display device includes a display panel, a light guide plate (lgp), a light source, and a positioning component. The lgp is disposed on a display surface of the display panel and has an upper surface and a lower surface opposite to each other, a light-incident surface, a first light-guiding block, and a second light-guiding block.
E Ink Holdings Inc.


04/30/15
20150117053 

Light guide plate


A light guide plate including a plate body and a plurality of microstructures formed thereon is provided. The plate body has a light entrance surface, a light exit surface orthogonal to the light entrance surface, and at least one side surface neighboring the light exit surface and the light entrance surface.
Wistron Corporation


04/30/15
20150117052 

Backlight module and display panel using the same


A backlight module includes a frame, a light source, a light guide plate, a wavelength conversion layer, and an optical film group. The light source is disposed in the frame.
Au Optronics Corporation


04/30/15
20150117051 

Display device and backlight module


A backlight module includes a bottom frame, a light guide plate, a lighting bar and a supporting bar. The light guide plate is disposed on the bottom plate of the bottom frame.
Wistron Corporation


04/30/15
20150116628 

Light assembly, backlight module and liquid crystal display


A light assembly, a backlight module and a liquid crystal display are described. The light assembly includes a carrier, a light guide plate, a light source, a constraining member and a securing unit.
Radiant Opto-electronics Corporation


04/30/15
20150116627 

Backlight module and liquid crystal display device using same


The present invention provides a backlight module and a liquid crystal display device using the backlight module. The backlight module includes: a backplane (2), a light guide plate (4) arranged in the backplane (2), a backlight source (6) arranged in the backplane (2), and an optic film assembly (8) arranged on the light guide plate (4).
Shenzhen China Star Optoelectronics Technology Co., Ltd.


04/30/15
20150116626 

Backlight module and liquid crystal display device using same


The present invention provides a backlight module and a liquid crystal display device using the backlight module. The backlight module includes: a backplane (2), a light guide plate (4) arranged in the backplane (2), a backlight source (6) arranged in the backplane (2), an optic film assembly (8) arranged above the light guide plate (4), and a reflection plate (9) arranged between the backplane (2) and the light guide plate (4).
Shenzhen China Star Optoelectronics Technology Co., Ltd.


04/30/15
20150116598 

Display device and television receiver


A liquid crystal display device (display device) is provided with: leds (light source); a liquid crystal panel (display panel); a light guide plate; a chassis that is disposed on the opposite side of the light guide plate from the liquid crystal panel, is formed in a plate shape, and has a chassis side recessed and protruding part formed from recessed parts and protruding parts arranged along the plate surface direction of the chassis on a plate surface on the light guide plate side; and a frame (frame member) that is arranged on a display surface side of the liquid crystal panel, accommodates the leds, liquid crystal panel, and light guide plate within the chassis, has the leds attached thereto, has a frame side recessed and protruding part that can mate with the chassis side recessed and protruding part, and also has the frame side recessed and protruding part mated with the chassis side recessed and protruding part.. .
Sharp Kabushiki Kaisha




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Light Guide Plate topics: Light Guide Plate, Light Guide, Liquid Crystal, Liquid Crystal Display, Display Panel, Control Unit, Terminal Equipment, Led Substrate, Partitioning, Prism Sheet, Irradiation

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