Including Liquid Crystal Display (i.e., Lcd) Patents (Class 362/561)
  • Patent number: 10502891
    Abstract: A display device includes a display panel and an illumination section that illuminates the display panel. The illumination section includes: a light guide plate having a first surface and a second surface facing each other; a light source facing an end surface of the light guide plate; an adhesive layer formed adjacent to the first surface of the light guide plate and having substantially the same refractive index as a refractive index of the light guide plate; and a light reflection layer bonded to the first surface of the light guide plate with at least the adhesive layer in between.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 10, 2019
    Assignee: Sony Corporation
    Inventors: Soya Araki, Takao Sumida, Takeshi Yamamoto, Tomoyuki Yoshimatsu
  • Patent number: 10488582
    Abstract: A planar illumination apparatus according to an embodiment includes a light guide plate that emits light from an emission surface, the light being incident on a lateral surface of the light guide plate; a light source that is arranged on the lateral surface side and has a light emitting surface that emits light to be incident on the lateral surface; a substrate that has two principal surfaces, a surface opposite to the light emitting surface of the light source being mounted on one of the principal surfaces; a frame that has a lateral surface and a floor surface, and accommodates the light guide plate, the light source, and the substrate; and a first coupling member that is arranged between the light guide plate and the floor surface and between the light source and the floor surface, and couples the light guide plate and the light source.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: November 26, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Hideyuki Tokunaga, Makoto Furuta, Takashi Edamitsu
  • Patent number: 10488704
    Abstract: A backlight device includes LEDs, a light guide plate, a LED board, and a bonding member. The light guide plate has a light entrance edge surface that is a part of peripheral edge surfaces thereof and through which light from the LED enters, a light exiting plate surface that is one of plate surfaces thereof and through which light exits, and another one of the plate surfaces as an opposite plate surface. The LED board has a mounting surface on which the LEDs are mounted, and has a part overlapping a part of the light guide plate on an opposite plate surface side. The bonding member is bonded to the mounting surface of the part of the LED board and to the opposite plate surface of the part of the light guide plate and the bonding member includes a light absorbing bonding layer containing light absorbing material.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: November 26, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Ryuzo Yuki, Mitsuhiro Murata, Hisashi Watanabe, Hirotoshi Yasunaga
  • Patent number: 10473850
    Abstract: Embodiments described herein are directed to a lighting fixture including a lightguide that distributes light from a major surface, a light assembly including light sources arranged linearly, and a frame including a means for providing a force that urges the light assembly against an edge of the lightguide. A standoff or spacer can provide an air gap between a light source of the light assembly and the waveguide edge. In various embodiments, the lighting fixture may incorporate a spring, a spring finger, a spring clip, a screw, or other means for securing the light assembly against the edge of the lightguide. In this manner, substantially all light provided by the light assembly is emitted into the edge of the lightguide. The fixture is formed to accommodate tolerances among elements of the lighting fixture, while maintaining the light assembly securely against the edge of the lightguide.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: November 12, 2019
    Assignee: Eaton Intelligent Power Limited
    Inventors: James H. Blessitt, Russ Clements, Ellis W. Patrick
  • Patent number: 10459275
    Abstract: The embodiments of the present invention provide a polarizer, a manufacturing method thereof, a display panel and a display device, to avoid mura caused by the film peeling process of the polarizer, thereby reducing the probability of bad quality products, simplifying the assembly process, and preventing the omission of conductive attachment. The polarizer includes a main body layer, a protective film layer, a conductive layer and a release film. A first surface of the main body layer is attached with the protective film layer. A second surface of the main body layer is attached with the release film. A periphery of the main body layer is attached with the conductive layer.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: October 29, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Junwei Wang, Haifeng Yu, Haiqin Huang, Dongxi Li
  • Patent number: 10422518
    Abstract: The light fixture includes a frame, a substantially flat light emitting diode (LED) panel disposed within the frame, power circuitry disposed within at least one of a number of channels within the frame, and a central wire-way. The frame includes a bottom assembly and a top assembly coupled to the bottom assembly. The bottom assembly and the top assembly cooperate to form the channels within the frame. The bottom assembly has a back surface. The power circuitry is configured to electrically couple the substantially flat LED panel to an external AC power supply. The central wire-way is disposed adjacent the back surface of the bottom assembly and configured to route wiring to or from the power circuitry disposed within at least one of the channels within the frame.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: September 24, 2019
    Assignee: Unity Opto Technology Co., Ltd.
    Inventors: J. Richard Myers, John Araki
  • Patent number: 10399482
    Abstract: A light module includes a light source configured for emitting an illumination beam, and an optical fiber guiding the illumination beam between a first end facing the light source and a second end opposite the light source. The light module further includes a reflector positioned at the second end of the optical fiber and reflecting the illumination beam back from the second end toward the first end of the optical fiber.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: September 3, 2019
    Assignee: Dura Operating, LLC
    Inventor: Thomas Farges
  • Patent number: 10354598
    Abstract: Methods and apparatuses are provided for controlling a display and transmitting video content. The method includes determining, by processing circuitry, a blinking frequency to be used during presentation of video content for a light source of a display. The processing circuitry sets the blinking frequency for the light source of the display based on the determined blinking frequency. Further, the processing circuitry controls the light source of the display to blink according to the set blinking frequency while the video content is presented on the display. The light source is configured to illuminate a separate display panel or to emit light that form images of the video content.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: July 16, 2019
    Assignee: SONY CORPORATION
    Inventor: Peter Shintani
  • Patent number: 10352527
    Abstract: Provided is a luminous, apparatus such as a display, having a function of preventing attraction of insects. A display apparatus 1 has a light emission surface 1 whose peripheral edge region is at least partially formed as a low-attraction region which is less capable of attracting bugs, wherein the low-attraction region is composed of an optical property gradient region whose at least one optical property gradually changes in a direction from an inward side to an outward side of the light emission surface.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: July 16, 2019
    Assignee: NATIONAL UNIVERSITY CORPORATION HAMAMATSU UNIVERSITY SCHOOL OF MEDICINE
    Inventors: Yoshihiro Uozu, Takahiko Hariyama, Mantaro Hironaka
  • Patent number: 10345509
    Abstract: An apparatus is disclosed including a light guide and a plurality of light emitting diodes (LEDs). The light guide includes a rear portion including a first edge, a second edge, and a rear edge. The first edge meets the rear edge at a first obtuse angle, and the second edge meets the rear edge at a second obtuse angle. The plurality of light emitting diodes (LEDs) disposed on the first edge, the second edge, and the rear edge, and it is arranged to produce an asymmetric light distribution pattern including a rear light emission and a forward light emission having a greater peak intensity than the rear light emission.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: July 9, 2019
    Assignee: Lumileds LLC
    Inventors: Jeroen Den Breejen, Frederic Stephane Diana
  • Patent number: 10317606
    Abstract: An etendue squeezing optic includes light guiding elements that are extruded sideways to guide light to a wide outlet surface for efficient injection into an edge face of a flat light guide such as a backlight panel for a visual display, in combination with a light source optically coupled to the light inlet through an air-gap, so that light entering the optic through the air-gap is confined to a cone of directions determined by a critical angle of refraction into the optic from air at the air-gap.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: June 11, 2019
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Julio C Chaves, Pablo Benitez, Juan Carlos Minano, Waqidi Falicoff
  • Patent number: 10281888
    Abstract: An electronic device with automatic screen-cleaning function includes a film attached to a flexible display screen. The film includes heat-sensitive projections, light detection units, and heating circuit. Each light detection unit can detect a brightness value of light under the flexible display screen. The detected brightness value is evaluated against a predefined brightness value. When the detected brightness value does not equal the predefined brightness value, at least one electrical resistance heater element is controlled to generate heat, causing one of projections to bulge from the film. The bulging projection pushes out the flexible display screen, thus making dust or other external contaminant fall from the flexible display screen.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 7, 2019
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Cheng-Gang Yang
  • Patent number: 10274782
    Abstract: Provided is a backlight unit, including: a light source allowing light having a light emission center wavelength of ? nm to exit; and a wavelength conversion member positioned on an optical path of the light exiting from the light source, in which the wavelength conversion member includes a wavelength conversion layer containing a fluorescent material which is excited by exciting light and emits fluorescent light, and a light scattering layer containing particles having a particle size of greater than or equal to 0.1 ?m in a matrix, an average refractive index n1 of the wavelength conversion layer satisfies a relationship of n1<n2 with respect to an average refractive index n2 of the matrix of the light scattering layer, and a light absorptivity of the light scattering layer at a wavelength of ? nm is less than or equal to 8.0%.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: April 30, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Yonemoto, Eijiro Iwase, Koichi Sato
  • Patent number: 10261230
    Abstract: LED lighting devices are provided that include two optical waveguides and at least one LED in an intermediate region between end faces of the optical waveguides so that radiation from the LED is coupled into the optical waveguides through the end faces. A de-coupler is on outer circumferential surface regions of each of the two separate optical waveguides. The de-coupler reflects the radiation guided in the optical waveguides so that the radiation passes through the optical waveguides and is coupled out of the optical waveguides laterally. The intermediate region has a length that is selected so that a brightness difference, measured perpendicular to an axis of the optical waveguides in the center of the intermediate region, at a distance of 10 mm perpendicular to the axis of the optical waveguides is at most 25% based on a maximum value of brightness along the axis of the optical waveguides.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: April 16, 2019
    Assignee: Schott AG
    Inventors: Ekkehard Gaydoul, Armin Plichta, Juergen Meinl, Bjoern Bleisinger, Martin Cramer, Thomas Reichert, Marc Timon Sprzagala, Sandra Mattheis
  • Patent number: 10228503
    Abstract: A light guide plate, a fabricating method thereof, a backlight source, and a display device. The light guide plate comprises a light guide plate main body, with the surface of the light guide plate main body being provided with a blue coating. The blue coating mixes with yellow light strengthened gradually from a light entrance end to a light remote end of the light guide plate main body to form white light. The fabricating method of the light guide plate comprises: providing a light guide plate main body; forming a blue coating on a surface of the light guide plate main body; and curing the light guide plate main body provided with the blue coating. The present disclosure further provides a backlight source and a display device. The backlight source comprises the above light guide plate, and the display device comprises the above backlight source.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: March 12, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Wentao Ying, Xiaoli Xie
  • Patent number: 10185072
    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.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: January 22, 2019
    Assignee: Radiant Opto-Electronics Corporation
    Inventors: Chia-Yin Chang, Chin-Ting Weng
  • Patent number: 10175419
    Abstract: A backlight module includes first and second backlight units. The first backlight unit includes a first cover, a first light guide plate, a first light source and at least one first optical film. The first cover has a first surface and a second surface opposite to each other. The first light guide plate is disposed on the first surface. The first light source is disposed on the first surface and located on a side of the first light guide plate. The first optical film is disposed between the first surface and the first light guide plate. The second backlight unit is detachably disposed with the first backlight unit and has a structure similar to the first backlight unit. A display device having the backlight module is also provided.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: January 8, 2019
    Assignee: YOUNG LIGHTING TECHNOLOGY INC.
    Inventors: Chih-Yang Wang, Chun-Chi Hsu, Bing-Han Tsai
  • Patent number: 10132989
    Abstract: The present disclosure provides a backlight module and a display device. The backlight module includes a back plate, a light guide plate (LGP) arranged on the back plate and including a central region and a peripheral region, and an optical sheet arranged on a light-exiting surface of the LGP. The LGP includes a supporting part arranged on the peripheral region and configured to support a display panel.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: November 20, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE CHATANI ELECTRONICS CO., LTD.
    Inventor: Peng Zhou
  • Patent number: 10126579
    Abstract: Exemplary embodiments disclosed herein provide a LCD assembly including an LED backlight, a liquid crystal display (LCD) placed in front of the LED backlight, a glass plate positioned between LED backlight and the LCD; and an optical film positioned between the glass plate and the LCD. In some embodiments, the glass plate is bonded to the rear side of the LCD, generally around the perimeter of the LCD. Preferred embodiments place a diffusing film within a cavity that is defined between the glass plate and the LCD. Some embodiments also bond the backlight cavity walls to the glass plate, on a side opposing the LCD.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: November 13, 2018
    Assignee: Manfuacturing Resources International, Inc.
    Inventors: William Dunn, Michael LeCave
  • Patent number: 10018766
    Abstract: The present invention discloses a light guide plate, a backlight module and a display device. In the light guide plate, a plurality of triangular pyramid dots are provided; two of four surfaces of each of the triangular pyramid dots are light receiving surfaces facing a backlight source, and are reflective mirror surfaces, so that incident light reaching the two light receiving surfaces from the backlight source is converted into emergent light exiting in two different directions, and then the emergent light is emitted out from the upper surface of the light guide plate. In the solution, as the triangular pyramid dots capable of converting incident light from a backlight source into emergent light exiting in two specific directions are provided in a light guide plate, the effect of dual-view backlight can be realized while providing a light guide plate or dual-view backlight module with simpler structure and lower cost.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: July 10, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shang Wang, Qiuxiang Li
  • Patent number: 9949334
    Abstract: A lighting assembly including a circuit is disclosed. The circuit is configured to be disposed in a panel defining a cavity forming an opening. The circuit includes a light source in communication with a controller and an exposed conductive portion conductively connected to an isolation terminal. The exposed conductive portion is oriented proximate the opening and provides a path for an electrical discharge to protect the light source from the electrical discharge.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: April 17, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Stuart C. Salter, James J. Surman, Cornel Lewis Gardner, Steven J. Antilla, Daniel Weckstein
  • Patent number: 9904004
    Abstract: A liquid crystal display device includes a plurality of light source packages each having a light-emitting portion for emitting light, a light guide plate which light emitted from the light source packages enters through the incidence surface, having a height and a width, and from which the light exits through the exit surface, and a liquid crystal display panel for controlling, for each pixel, the orientation of a liquid crystal material to control the transmission of the light exiting through the exit surface. Each light source package has two opposing long sides and two opposing short sides when viewed from the direction of the light emitted by the light-emitting portion. The plurality of light source packages are arranged long side to long side in the direction along the width.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: February 27, 2018
    Assignee: Japan Display Inc.
    Inventor: Norihiro Nakamura
  • Patent number: 9879836
    Abstract: The present invention is directed toward a lighting device in a motor vehicle that includes a first light conductor and at least one second light conductor. The first light conductor propagates light by total internal reflection which impacts on a light coupling-out area of light conductor and is at least partially reflected toward and emits from an opposite light output area. The at least one second light conductor propagates light by total internal reflection which is coupled into the first light conductor by a midway coupling-in. The light that emits out of the second light conductor via a light output area enters into the first light conductor via the light coupling-out area. An air gap is formed between the light coupling-out area of the first light conductor and the light output area of the second light conductor.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: January 30, 2018
    Assignee: Automotive Lighting Reutlingen GmbH
    Inventor: Thomas Kleiner
  • Patent number: 9880502
    Abstract: A light emitting device includes a light source, a light guide plate, a diffusion sheet, and a lens. The light source is configured to perform partial light emission. The light guide plate is configured to guide light from the light source. The diffusion sheet is stacked over the light guide plate with a gap defined between the light guide plate and the diffusion sheet, and is configured to diffuse the light guided by the light guide plate. The lens is stacked on the diffusion sheet and has an upper surface serving as a light emitting surface.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 30, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takumi Michibata
  • Patent number: 9824612
    Abstract: The disclosure provides a display panel, a method for driving the display panel and a 3D display device including the display panel, and relates to the technical field of display. The display panel comprises a display unit and at least one timing control units, wherein the display unit comprises a plurality of display regions and the plurality of display regions are simultaneously scanned. With the present invention, wire impedance in the display panel is reduced, charging time for a single row of pixels can be reduced and charging rate of the pixels can be improved.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: November 21, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Weihao Hu, Yoon Dae Keun, Yanping Liao, Yufan Du, Zongze He, Yangbing Yu
  • Patent number: 9772437
    Abstract: A display includes a display panel, an image compensating portion, and a backlight module. The display panel includes a main display region and a periphery display region outside the main display region. The image compensating portion corresponding to the periphery display region includes a plurality of light guiding channels. The backlight module provides lights to the display panel. The backlight module comprises a plurality of first light collecting module. The first light collecting module focuses lights emitted from a first direction on a first light collecting axis parallel with an axis of the light guiding channel. The first direction is perpendicular to a first plane parallel with the display panel.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: September 26, 2017
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: I-Wei Wu
  • Patent number: 9753213
    Abstract: A planar light source device 200 includes a light source 10 and a reflection member 30. The light source 10 emits a light beam 10a having directivity. The reflection member 30 has a box shape including a single bottom-plate part 30e, side-plate parts 30a, 30b, 30c and 30d connected to the bottom-plate part 30e, and an opening part 30f facing the bottom-plate part 30e. The box shape has inner surfaces which are reflection surfaces. The bottom-plate part 30e has a quadrilateral shape including two facing short sides and two facing long sides. The light beam 10a enters an inside of the box shape of the reflection member 30 through a side of the side-plate part 30a connected to the short side of the bottom-plate part 30e, travels in a direction of the long side of the bottom-plate part 30e while being reflected at the side-plate parts 30c and 30d connected to the long sides of the bottom-plate part 30e, and is emitted through the opening part 30f.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: September 5, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Rena Nishitani, Nami Nakano, Tomohiro Sasagawa, Nobutaka Kobayashi
  • Patent number: 9703033
    Abstract: A light guide plate includes a light exit surface, a reflection surface opposite to the light exit surface, and at least one light incidence surface connecting to the light exit surface and the reflection surface. The reflection surface includes a plurality of minute projection structures projecting toward interior of the light guide plate. Each of the minute projection structures includes at least two side faces coated with a high reflectivity material. The at least two high reflectivity material coated side faces form at least one included angle pointing toward the at least one light incidence surface. With the distance of the minute projection structure from the closest light source getting shorter, the at least one included angle formed thereby is getting smaller.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: July 11, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Gege Zhou
  • Patent number: 9645298
    Abstract: Embodiments of the present invention provide a backlight module and a liquid crystal display device. The backlight module comprises a light bar, a light guide plate and a reflector sheet. The light guide plate and the reflector sheet are adhered to each other. An anti-reflection structure is provided on at least one side of the light guide plate and/or the reflector sheet. The anti-reflection structure is used for reducing light reflected by the reflector sheet which is emitted from the light sources. The anti-reflection structure includes anti-reflection structures. A first anti-reflection structure is located on one side of the light guide plate and/or the reflector sheet close to the light bar, while a second anti-reflection structure is located on other sides of the light guide plate and/or the reflector sheet. The present invention may improve the luminescence uniformity of the backlight module.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: May 9, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE VISION-ELECTRONIC TECHNOLOGY CO., LTD.
    Inventor: Changjia Fu
  • Patent number: 9589984
    Abstract: A pixel structure located on a periphery of a display module includes a substrate, a flexible circuit board and a plurality of LED chips. The substrate has at least one scribing tolerance reserving zone and a display unit mounting zone. The flexible circuit board is disposed on the display unit mounting zone of the substrate. The LED chips are mounted on the flexible circuit board.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: March 7, 2017
    Assignee: E Ink Holdings Inc.
    Inventors: Yung-Sheng Chang, Chia-Chun Yeh
  • Patent number: 9575362
    Abstract: A backlight assembly and a display device including the same are provided. A backlight assembly includes a light source portion including a plurality of light sources having a first light source and a second light source, the second light source emits light of a color that is different from a color of light emitted from the first light source, and a reflective member that is adjacent to an edge portion of the light source portion, wherein the reflective member includes a base layer including a first region that faces the first light source and a second region that faces the second light source, and a plurality of color patterns including a plurality of first color patterns that are positioned on the first region of the base layer and a plurality of second color patterns that are positioned on the second region of the base layer, wherein the plurality of first color patterns and the plurality of second color patterns have different colors.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: February 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Won Lee, Ju Hee Song, Min Young Song, Ji Won Lee
  • Patent number: 9575239
    Abstract: Light that enters from an incident light surface of a light guide plate includes not only light which is guided toward the forward direction in front but also light whose optical path is modified by optical elements while progressing through the inside of the light guide plate, and thus wasteful emission from an emitting surface is inhibited. Lights are guided in a longitudinal direction of the optical elements. Light is diffused in the course over which the lights are guided and the region to which they are guided. The lights are guided by the optical elements in the longitudinal direction of the optical elements, and thereby light diffusivity is exhibited in the region in which the optical elements are provided while controlling the directivity of the light.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: February 21, 2017
    Assignee: MINEBEA CO., LTD.
    Inventor: Daisuke Nakayama
  • Patent number: 9436037
    Abstract: A double-sided LCD includes a first liquid crystal panel, a second liquid crystal panel arranged opposite to the first liquid crystal panel, and a backlight module arranged therebetween. The backlight module includes: a middle frame being arranged and assembled between the first liquid crystal panel and the second liquid crystal panel; and a light emitting assembly comprises a first lamp board facing toward the first liquid crystal panel, a second lamp board facing toward the second liquid crystal panel, and at least two middle plate being arranged between the first lamp board1 and the second lamp board, a gap is formed between two adjacent middle plates, and the first lamp board and the second lamp board respectively comprises a plurality of light sources. In addition, a backlight module for double-sided LCDs is also disclosed.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: September 6, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Chao Ning
  • Patent number: 9423553
    Abstract: A backlight device includes a prism film having a top face on a display panel side and a bottom face opposing the top face, and a reflector plate having a reflection face opposing the bottom face. A prism-like pattern is formed on the top face of the prism film and a scattering pattern is formed on the reflection face of the reflector plate. When a first normal line axis of a slope forming the prism-like pattern and a second normal line axis of one slope forming the scattering pattern are projected on an imaginary plane parallel to the display panel, the projected first and second normal line axes form an acute angle.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: August 23, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Yuji Saito
  • Patent number: 9417373
    Abstract: A display device includes a light guide unit, a light source, a display panel and a protective member. The light guide unit includes a first surface, a second surface facing the first surface, and a plurality of connecting surfaces connecting the first surface and the second surface to each other, and guides a light which is incident to a connecting surface to the first surface. The light source provides light to the connecting surface. The display panel displays an image using the light provided from the first surface of the light guide unit. The protective member includes a plurality of reflective patterns facing another connecting surface among the plurality connecting surfaces, provides the light leaked from the light guide unit to the another connecting surface, and accommodates the light guide unit, the light source and the display panel therein.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: August 16, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seul-Gi Kim, Donghyeon Lee
  • Patent number: 9329425
    Abstract: A transparent display apparatus including a backlight module, a display panel, and a switching panel is provided. The backlight module includes a light source and a light guide plate (LGP). The display panel is located on a light emitting surface of the LGP. The switching panel and the backlight module are located at the same side of the display panel. The switching panel includes a first substrate, a second substrate opposite to the first substrate, a polymer-dispersed liquid crystal layer located between the first substrate and the second substrate, a first electrode layer located between the first substrate and the polymer-dispersed liquid crystal layer, and a second electrode layer located between the polymer-dispersed liquid crystal layer and the second substrate. The first electrode layer is divided into first electrode patterns that are separated from and electrically independent from one another. Another transparent display apparatus is also provided.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: May 3, 2016
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventors: Chien-Hua Chen, Ji-Nian Lin, Chun-Wei Su
  • Patent number: 9307609
    Abstract: A light-emitting module includes at least one first light-emitting component, at least one second light-emitting component, a first driving component, a second driving component, and a control component. The first light-emitting component is configured to emit a white light having a first predetermined color temperature according to a first power of a first driving signal. The second light-emitting component is configured to emit another white light having a second predetermined color temperature according to a second power of a second driving signal. The control component is configured to separately output the first and second driving signals, and to separately adjust the first and second powers of the first and second driving signals, so as to mix the white lights having the first and second predetermined color temperatures to output a white light having an output color temperature.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: April 5, 2016
    Assignee: E Ink Holdings Inc.
    Inventor: Hsin-Tao Huang
  • Patent number: 9168864
    Abstract: A lighting assembly for a vehicle, and in particular, an interior lighting assembly having a reduced profile using solid state illuminators is provided along with a method of construction thereof. The assembly includes a housing; a lens attached to the housing; a printed circuit board disposed between the housing and the lens; at least one light source attached in operable electrical communication to the printed circuit board; and a light blade. The light blade has opposite sides disposed between the printed circuit board and the lens. One of the sides has a first configuration of optics and the other of the sides has a second configuration of optics, wherein the first and second configurations of optics are different from one another.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: October 27, 2015
    Assignee: Federal-Mogul Ignition Company
    Inventors: James B. Anderson, Stephen A. Bynum
  • Patent number: 9116321
    Abstract: An optical fiber cord includes an optical fiber cord main body with a round sectional form, the optical fiber cord main body including a core which has an optical fiber ribbon in which N (N is an even number of 4 or larger) coated optical fibers are arranged in parallel, and a sheath which covers the core. In the optical fiber ribbon, connected parts and non-connected parts are intermittently formed in a longitudinal direction between the adjacent coated optical fibers.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: August 25, 2015
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Fumiaki Sato, Naomichi Osada, Hiroshi Miyano, Keisuke Okada
  • Patent number: 9091797
    Abstract: A light guide panel includes: a light guide layer having a light incident surface; a polarization separation layer configured to select a desired polarization among light emitted from the light guide layer and to emit light having the polarization; and a light homogenization layer including a plurality of fibers and a supporting medium of the fibers, the light homogenization layer configured to diffuse and scatter light incident on the light guide layer into the light guide layer. The polarization separation layer includes: a plurality of first fibers having birefringence; and a first supporting medium that is isotropic and configured to support the first fibers. The refractive index of the first supporting medium corresponds to at least one of two different refractive indices of the first fibers. The light homogenization layer includes: a plurality of second fibers having birefringence; and a second supporting medium that is isotropic and configured to support the second fibers.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: July 28, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tadao Yagi, Atsushi Sato, Nobuji Sakai, Yoshihiro Yokote, Shigeto Kobori, Hideki Imamura
  • Patent number: 9086512
    Abstract: A lighting device includes: light-emitting diodes (light sources) (4); an LED substrate (light source substrate) (5) that has a mounting surface (5a) on which the light-emitting diodes (4) are mounted; a light-guiding plate (6) that has a light incident surface (6b1) from which light from the light-emitting diodes (4) enters, and a light emitting surface (6c) that emits the light having entered from the light incident surface (6b1) toward a liquid crystal panel (object to be irradiated) (2); and a reflection plate (7) that is provided on a side of an opposite surface (6d) of the light-guiding plate (6) that is opposite to the light emitting surface (6c), and reflects light. The reflection plate (7) includes a bent portion (7b) formed by bending an end portion of the reflection plate (7) so that the bent portion surrounds the light-emitting diodes (4) while being in close contact with the mounting surface (5a) of the LED substrate (5).
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: July 21, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kenji Takase
  • Patent number: 9074749
    Abstract: A display apparatus is provided. The display apparatus includes a transparent display panel, a reflector disposed in the display apparatus and configured to reflect light and provide the reflected light to the transparent display panel, a light emitter configured to emit the light and project the emitted light to the reflector, and a control circuit configured to control the transparent display panel and the light emitter.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: July 7, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong-ryeol Seo, Young-kook Kim, Hyun-ah Kim, Ji-eun Park, Jin-ho Son, Seung-hun Lee, Ki-seok Choi, Won-yong Choi, Yun-suk Choi
  • Patent number: 9071800
    Abstract: A display unit includes: a liquid crystal display section displaying a series of original frame images and a series of interpolated frame images in a time-divisional manner, the interpolated frame images being generated based on the original frame images; a backlight emitting light intermittently; and a backlight control section controlling a first light-emission amount and a second light-emission amount of the backlight independently of each other, the first light-emission amount being an amount during a first period corresponding to a period for displaying the original frame images, and the second light-emission amount being an amount during a second period corresponding to a period for displaying the interpolated frame images.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: June 30, 2015
    Assignee: Sony Corporation
    Inventor: Naoki Ikawa
  • Patent number: 9039268
    Abstract: Embodiments of the invention disclose a backlight unit, including: a light guide plate, a light source member, a reflection film, wherein: the light guide plate (LGP) includes a light incident side, a light emission side and a bottom side opposite to the light emission side, the light guide plate is for emitting light entered from the light incident side through the light emission side; the light source member is disposed on the light incident side of the LGP and light emitted by the light source member enters the LGP through the light incident side of the LGP; the reflection film is at least disposed on the bottom side of the LGP and is for reflecting light back into the LGP; wherein a reflection structure is disposed on the bottom side of the LGP and a microstructure is disposed on the light emission side of the LGP.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: May 26, 2015
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Ruoyu Ma
  • Patent number: 9022598
    Abstract: One embodiment of the invention is directed to a light mixing illuminator for illuminating an object, comprising an array of light emitting elements wherein at least some of the elements emit light of different wavelengths. An optical device is employed that focuses the light from the elements to a Fourier plane of the device, wherein the light emitting elements are arranged so that at least the zero spatial frequency components of light of the different wavelengths from the elements substantially overlap in a region at the Fourier plane. An objective is used to project the region onto the object. A mask is used that selectively blocks some of spatial frequency components of light from the elements without blocking the zero spatial frequency components of light from reaching the object.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: May 5, 2015
    Assignee: DiCon Fiberoptics Inc.
    Inventor: Jeffrey Lee
  • Patent number: 9020315
    Abstract: Provided is an optical sheet capable of exhibiting superior optical function, and a high-quality backlight unit using the same. The optical sheet includes a transparent substrate layer, and an optical function layer having a plurality of fibers protruding from one surface side of the substrate layer. The optical function layer preferably includes an adhesive portion joining the plurality of fibers to the substrate layer. The adhesive portion is preferably laminated entirely on the one surface side of the substrate layer. The adhesive portion is preferably formed from acryl emulsion adhesives. The refractive index of the fiber is preferably no less than 1.3 and no greater than 1.8. The density of the fiber per unit area in the plane direction of the substrate layer is preferably no less than 100 fibers/cm2 and no greater than 5000 fibers/cm2.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: April 28, 2015
    Assignee: Keiwa Inc.
    Inventor: Takahiro Tsuji
  • Patent number: 8985796
    Abstract: The present invention provides a backlight system, which includes an LED light source, which includes an LED lamp and an LED substrate carrying the LED lamp; a back frame, which is disposed below the LED substrate and includes at least two primary assembling pieces, the at least two primary assembling pieces being joined to form a main frame structure of the back frame; and a PCB, which is disposed below the back frame and fixed to the LED substrate. The backlight system of the present invention saves the material and space of the back frame, and lowers down the cost of the backlight system.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: March 24, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Quan Li, Yi-Cheng Kuo, Yu-Chun Hsiao
  • Patent number: 8979294
    Abstract: A curved display device is provided including a display panel having a constant curvature and displaying an image, a backlight unit having the same curvature as that of the display panel, disposed at a rear surface of the display panel, and emitting light to the display panel, and a control unit locally controlling light emission of the backlight unit such that luminance of a light leakage region of the display panel is adjusted. Occurrence of light leakage in the curved display device is prevented, and thus, luminance of the curved display device is kept constant.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: March 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Seok An, Chan Hong Park, Kun Ho Cho
  • Patent number: 8979346
    Abstract: The present invention provides a backlight module and a display apparatus. The display apparatus comprises the backlight module and a display panel. The backlight module comprises a light collector, at least one optical fiber, a fiber arrangement substrate and a light guide plate. The optical fiber is connected between the light collector and the fiber arrangement substrate. The light guide plate is disposed at one side of the fiber arrangement substrate. The present invention can use ambient light rays to form a backlight source.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: March 17, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Chechang Hu, Li-Yi Chen, Kuangyao Chang, Yong Fan, Chao Ning
  • Patent number: 8974103
    Abstract: A light-emitting device includes a light source, a panel and a light guiding structure. The light guiding structure includes a first light guiding tunnel and a second light guiding tunnel. The first light guiding tunnel includes a first end and a second end. A first opening is formed at the first end and close to the light source. The second light guiding tunnel includes a first end and a second end. The first end of the second light guiding tunnel communicates with the second end of the first light guiding tunnel. A diameter of the second end of the second light guiding tunnel is greater than a diameter of the first end of the second light guiding tunnel. A second opening is formed at the second end of the second light guiding tunnel. A diameter of the second opening is greater than a diameter of the first opening.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 10, 2015
    Assignee: Wistron Corporation
    Inventors: Kuang-Wen Chen, Yu-Hsin Huang, Fu-Chien Chen, Chun-Chiang Lai