Edge Lit Type Light Guide Behind Liquid Crystal Patents (Class 349/65)
  • Patent number: 10386568
    Abstract: Disclosed herein is a combined enhanced diffused reflector and back cover for a display stack. The back cover may be assembled proximate to a light guide panel layer of a display stack to receive light from a light guide panel and to reflect and diffuse light received from the light guide panel back to the light guide panel.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: August 20, 2019
    Assignee: INTEL CORPORATION
    Inventor: Arvind Sundaram
  • Patent number: 10386560
    Abstract: A wavelength conversion light guide assembly including a light guide plate, a holding element, and a wavelength conversion material is provided. The holding element is jointed with at least one side of the light guide plate, wherein the holding element and the light guide plate enclose a closed accommodating space. The wavelength conversion material is disposed in the accommodating space and includes a plurality of quantum dots. A light source module using the wavelength conversion light guide assembly is also provided.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: August 20, 2019
    Assignee: ChengFeng Optronics Corporation
    Inventor: Ching-Fang Wong
  • Patent number: 10386669
    Abstract: Provided is a display substrate and a manufacturing method thereof a display panel and a display device. The display substrate comprises: a base substrate, and black matrixes, color filters and a blocking layer provided above the base substrate, the blocking layer being provided above the black matrixes and the color filters and being configured to block diffusion of particles generated by the color filters and/or the black matrixes. In the solutions of the display substrate and a manufacturing method thereof and a display device provided in the present application, the blocking layer is provided above the black matrixes and the color filters, and can block the particles generated by the color filters and/or the black matrixes, preventing the generated particles from diffusing to the opposite substrate facing the display substrate, generation of the progressive Zara can be prevented.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: August 20, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Tingze Dong, Peiqiang Guan, Xing Qin, Jun Mo
  • Patent number: 10386674
    Abstract: The present application relates to a light-emitting film, an illumination device, and a display device. The present application may provide a light-emitting film and the use thereof, the light-emitting film being capable of effectively generating a desired light, such as white light, and stably maintaining the performance thereof for a long period of time.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: August 20, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Seong Min Lee, Su Young Ryu, Sun Kug Kim, Moon Soo Park, Hyuk Yoon, Tae Gyun Kwon
  • Patent number: 10386678
    Abstract: Disclosed is a mold frame including a first guide defining the position of a photoconversion layer and at least one of optical sheets disposed on the photoconversion layer, a backlight unit and a liquid crystal display including the same, and the like. The first guide includes a first surface facing the liquid crystal panel, a second surface opposite to the first surface, and a third surface extended from the edge of the first surface to the edge of second surface, wherein at least a portion of the second surface is provided with a strip, and wherein the strip is extended along the edge of the optical sheet or the photoconversion layer to overlap a region adjacent to the edge of the top surface of the optical sheet or adjacent to the edge of the top surface of the photoconversion layer.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: August 20, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Oul Cho, Hyun A Kang, Eun Joo Jang
  • Patent number: 10365422
    Abstract: A luminous mouse pad includes a base plate, a light source, and a light-guiding pipe. The light source is disposed in the fixing unit. The light-guiding pipe is fixed on a periphery of the base plate. At least one end of the light-guiding pipe is adjacent to the light source and guides a light from the light source into the light-guiding pipe. The light-guiding pipe is exposed outside the periphery of the base plate, so that the light from the light source irradiates from a surface of the light-guiding pipe.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: July 30, 2019
    Assignee: HADES-GAMING CORP.
    Inventors: Ching-Tsun Hong, Hung-Jen Chou
  • Patent number: 10359667
    Abstract: Provided are a backlight unit and a liquid crystal display device. The backlight unit includes: one or plural LED light sources including N-colored LEDs; a photo-detecting section which measures light intensities of red, green and blue colors of received light and outputs corresponding signals; a driver section including N LED-drivers; and a control section including a drive-condition calculating section and a memory. The drive-condition calculating section calculates control signals for three colors among the N colors, on the basis of information stored in the memory and the signals outputted by the photo-detecting section, makes a pair of each remaining color and one of the three colors, outputs the control signals for three colors to the corresponding three LED drivers, and outputs a control signal determined by using the control signal for a color paired with each remaining color to the LED driver for the each remaining color.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: July 23, 2019
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Hiroki Sugaya
  • Patent number: 10352544
    Abstract: The light fixture includes a light emitting panel assembly including a frame and a substantially flat light emitting diode (LED) panel disposed within the frame. The substantially flat light emitting diode (LED) panel has an array of light emitting diodes (LEDs). The light fixture further includes a power circuitry module, with a power circuit. The power circuitry module is disposed within the frame adjacent an edge of the frame, and is releasably attachable to the light emitting panel assembly. A decouplable source electrical connector electrically couples the power circuit to an AC power supply external to the light fixture, and a decouplable driver electrical connector electrically couples the power circuit to the array of light emitting diodes (LEDs). The source electrical connector and driver electrical connector may be configured to be decoupled as the power circuitry module is detached and separated from the light emitting panel assembly.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: July 16, 2019
    Assignee: Unity Opto Technology Co., Ltd.
    Inventor: J. Richard Myers
  • Patent number: 10354616
    Abstract: A display device includes a display unit including a plurality of pixels to display a display image, a luminance detector to detect luminance of an image on the display unit, and a display driver. The display divider is to divide the display unit into image areas symmetrical to each other and to adjust a luminance of an image area having a relatively lower luminance value among the image areas symmetrical to each other based on a luminance detection result.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: July 16, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Su Mi Lee, Sang Ho Kim, Jong Ho Chong, Young Sang Ha
  • Patent number: 10338301
    Abstract: A lighting system including a lighting panel, wherein at least one light source, assigned to a narrow side of the lighting panel, is provided for coupling light into the lighting panel. The lighting system also includes a reflector facing a flat side of the lighting panel, wherein the flat side of the lighting panel facing the reflector and/or the reflector and/or an intermediate layer between the reflector and the lighting panel is provided with a surface structure. The surface structure is formed as a line grid made of continuous and intersecting grid lines. According to the lighting system, a high level of homogenization of the light emission from the lighting panel can be achieved in a simple manner. In this way, in particular, greater transmission losses in the edge regions of the lighting panel are prevented.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 2, 2019
    Assignee: Novomatic AG
    Inventor: Marek Gawel
  • Patent number: 10338306
    Abstract: The lighting device includes a cover with a receiving chamber defined between a top wall and a side wall extending downwards from the top wall; an insulation component located on an inner surface of the side wall and having a receiving groove; a light source assembly located in the receiving groove; a light guide assembly received in the receiving chamber with an end received in the receiving groove; and a metal frame fixed at a periphery of the cover.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: July 2, 2019
    Assignee: OPPLE LIGHTING CO., LTD.
    Inventors: Liangyin Gui, Guolong Ni, Guobao Zhang
  • Patent number: 10338292
    Abstract: A light guide plate, a backlight module and a display device are provided. The light guide plate includes a main body, plural first strip structures and second strip structures. The main body includes a light incident surface, an end portion and a light guide portion. The end portion has at least one inclined surface. The light guide portion is connected to the end portion. The light guide portion has a first optical surface and a second optical surface. At least one portion of each of the first strip structures is disposed on the first optical surface. At least one portion of each of the second strip structures is disposed on the second optical surface. An inherent type, an arrangement manner or an arrangement position of the first strip structures is different from an inherent type, an arrangement manner or an arrangement position of the second strip structures.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: July 2, 2019
    Assignees: Radiant Opto-Electronics (Suzhou) Co., Ltd., Radiant Opto-Electronics Corporation
    Inventors: Chia-Yin Chang, Shin-Bo Lin
  • Patent number: 10330848
    Abstract: A light source module including a light guide plate, a light source, and a quantum dot layer is provided. The light guide plate has a light emitting surface, a bottom surface, and a light incidence surface, wherein the bottom surface is opposite to the light emitting surface, and the light incidence surface connects the bottom surface and the light emitting surface. The light source is disposed beside the light incidence surface. The quantum dot layer is disposed on at least one of the light emitting surface and the bottom surface.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: June 25, 2019
    Assignee: ChengFeng Optronics Corporation
    Inventor: Ching-Fang Wong
  • Patent number: 10330854
    Abstract: A display apparatus includes a light source, a display panel and a light guide glue. The display panel includes a display surface and a sidewall extending downward from the display surface. The light guide glue is in contact with the display surface and the sidewall of the display panel to adhere to the display panel. A light travel path from the light source to the display panel passes through the light guide glue. The light travel path from the light source to the display panel is free from passing a light guide plate.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 25, 2019
    Assignee: E Ink Holdings Inc.
    Inventor: Chun-Wei Chu
  • Patent number: 10330844
    Abstract: A backlight unit includes a waveguide layer and a light source component. The waveguide layer includes a light-entering surface located its side surface, a bottom surface located at its bottom, and a light-exiting surface located at its top. A first grating layer is arranged at the bottom surface. A refractive layer is arranged at the light-exiting surface. The light source component is located beside the light-entering surface. The refractive layer includes a refractive lens unit. The refractive lens unit converges the diffracted light dispersed by means of the diffraction caused by the first grating layer when the backlight unit is in operation.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 25, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiandong Meng, Xianqin Meng, Jifeng Tan, Wei Wang, Xiaochuan Chen, Yafeng Yang, Jian Gao
  • Patent number: 10317614
    Abstract: A disclosed lighting apparatus includes a flex-circuit, a frame, and a light-diffusive panel. The flex-circuit includes a power bus having first and second portion of opposite polarity disposed parallel to outer edges of the flex-circuit, and solid-state lighting (SSL) elements disposed and connected between the portions of the power bus. A first side of the frame includes a first surface to which a portion of the flex-circuit having the first portion of the power bus is attached, a second surface to which a portion of the flex-circuit having the SSL elements is attached, and a third surface to which a portion of the flex-circuit having the second portion of the power bus is attached. A face of the light-diffusive panel abuts the first surface of the frame, and side of the light-diffusive panel faces the second surface of the frame and light emitting portions of the SSL elements.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: June 11, 2019
    Assignee: Automatad Assembly Corporation
    Inventors: Scott Lindblad, David Neuman, Aaron M. Anderson, Alex Ampe
  • Patent number: 10317607
    Abstract: Provided are an optical member capable of implementing optical images having desired shapes through a pattern design, and a lighting device using the same, the optical member including: a three-dimensional effect forming portion provided on a first surface of a base substrate; and a multiple effect forming portion disposed in a lamination form with the three-dimensional effect forming portion, wherein the three-dimensional effect forming portion has multiple main patterns sequentially arranged in a first direction on the first surface and having respective inclined surfaces with an inclination angle with respect to the first surface, wherein the multiple main patterns implement a line shaped beam of a first path by guiding a first incident beam into a first surface direction through refraction or reflection from the inclined surfaces, wherein the multiple effect forming portion are sequentially arranged in a second direction crossing the first direction and has multiple optical patterns.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: June 11, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Dong Hyun Lee, Jin Su Kim, Seung Jong Baek, Jae Hyuk Jang
  • Patent number: 10317603
    Abstract: A light guide device is for a lighting apparatus of a motor vehicle. The light guide device includes: a light incident end to receive an incident light, the light incident end having at least one light incident face and each light incident face has a first edge and a second edge that are displaced from each other in a direction along an axis of the light guide device. The light guide device can improve the uniformity and efficiency of incident light coupling of the light guide device.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: June 11, 2019
    Assignee: Foshan Ichikoh Valeo Auto Lighting Systems Co. Ltd
    Inventors: Zebin Ni, Xianfei He
  • Patent number: 10310319
    Abstract: The present invention provides a display device, wherein the display device comprises a display panel and a light source, and the display panel comprises an array substrate, a color filter substrate and a display medium packaged between the array substrate and the color filter substrate, and the display medium comprises liquid crystal molecules and dichroic dye molecules, and the array substrate comprises a glass substrate, and the glass substrate is located at one side of the array substrate away from the display medium, and the glass substrate comprises an incident surface, and the light source is oppositely located with the incident surface of the glass substrate. The present invention further provides a display terminal.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: June 4, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Lixuan Chen, Weiwei Zheng, Yuchun Hsiao
  • Patent number: 10310157
    Abstract: An accessory device is disclosed. The accessory device may include a light guide assembly that directs light from a light source (or sources) through an opening of the accessory device, and in particular, in a base portion of the accessory device. The light guide assembly may be disposed in a compartment of the accessory device and include a light guide body as well as a light guide insert disposed in an opening of the light guide body. To form the opening, a single cutting operation may cut through the base portion and the light guide body so that the respective openings of the base portion and the light guide body are aligned. The light guide body may be designed to receive the light from the light source and direct or focus the light toward the light guide insert. The light guide insert may refract, scatter, and/or diffuse the light.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: June 4, 2019
    Assignee: APPLE INC.
    Inventors: Timothy J. Rasmussen, Ian P. Colahan, Darshan R. Kasar, Tian Shi Li
  • Patent number: 10295725
    Abstract: A light guide member includes a reflective surface with a diffusion groove array. The diffusion groove array includes diffusion grooves arranged in the reflective surface in a length direction of the light guide member. The diffusion groove array includes, as the diffusion grooves, at least two inspection grooves and a non-inspection diffusion groove. The two inspection grooves are spaced in the length direction of the light guide member. The non-inspection diffusion groove is between the two inspection grooves. An intermediate part, in a length direction, of each of the two inspection grooves is divided by an ungrooved portion with no groove.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: May 21, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideki Koizumi, Takeshi Ito, Tatsuji Ono, Yoshio Obata, Mamoru Ishizuka
  • Patent number: 10288929
    Abstract: The present disclosure relates to a display panel including a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The display panel also includes a first polarized film and a first frame glue, and the first polarized film adheres to a surface of the first substrate facing toward the second substrate. The first frame glue connects between the first substrate and the second substrate such that a closed cell is formed cooperatively by the first substrate and the second substrate. The first polarized film and the liquid crystal layer are received within the closed cell. The present disclosure also relates to a liquid crystal display device. The first polarized film is isolated from external environment so as to enhance the stability of the first polarized film.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: May 14, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Zhenxia Chen, Minghui Li, Lixuan Chen
  • Patent number: 10281645
    Abstract: Described is a liquid crystal display device including an edge light source array or a direct-type light source array and a group of optical sheets disposed over a light guide plate. The liquid crystal display device has at least one foot that extends towards the side of the bottom cover from one edge of a top sheet among the group of optical sheets. The at least one foot partially fixes the group of optical sheets to prevent movement in the vertical and horizontal directions in an upright display orientation, while allowing for expansion of the optical sheets during manufacturing.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: May 7, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyunsik Kong, Jingu Kim
  • Patent number: 10281643
    Abstract: A planar illumination apparatus according to an embodiment includes a light guide plate, a light source, a frame, a first support member, a first adhesive member, a second support member, and a second adhesive member. The light guide plate has a light extraction surface and a light entering side face. The light source is arranged on the light entering side-face side. The frame has a floor face, and houses the light guide plate and the light source. The first support member supports the light guide plate from the floor face side of the frame. The first adhesive member causes the light guide plate and the first support member to adhere to each other. The second support member supports the light source from the floor face side of the frame. The second adhesive member causes the light source and the second support members to adhere to each other.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: May 7, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Kazuki Ohto
  • Patent number: 10274665
    Abstract: Provided is a back light unit (BLU) for holographic display. The BLU includes a first diffraction grating attached to a waveguide, a second diffraction grating that supplies light to the first diffraction grating, a light source that supplies light to the second diffraction grating, and a light reflection element that reflects light towards the first diffraction grating. The back light unit may further include a lens that is disposed in front of the waveguide. The light reflection element may be disposed parallel to a rear surface of the waveguide. The light reflection element may be inclined with respect to the rear surface of the waveguide. The light reflection element may be a mirror or a prism array.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sunil Kim, Juwon Seo, Wontaek Seo, Chilsung Choi
  • Patent number: 10268073
    Abstract: A backlight, an assembly method thereof and a display device are disclosed. The backlight includes a light source configured to emit light having a first wavelength; a wavelength converter disposed on a light-emitting side of the light source and configured to convert the light having the first wavelength into light having a second wavelength upon passing through the wavelength converter, in which the second wavelength is different from the first wavelength; and a light guide plate disposed on one side of the wavelength converter away from the light source, and configured to receive and re-emit the light emitted from the wavelength converter.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: April 23, 2019
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zhongbao Wu, Ruoyu Ma
  • Patent number: 10268063
    Abstract: A liquid crystal display module includes first and second polarizing plates, and a liquid crystal panel between the polarizing plates. The second polarizing plate comprises an optical film on a polarizer. The optical film comprises a high refractive index pattern layer having at least one engraved pattern, and a low refractive index pattern layer having a filling pattern that fills at least a portion of the engraved pattern. A difference in refractive index between the high refractive index pattern layer and the low refractive index pattern layer may be about 0.1 to about 0.2. The optical film may be disposed such that light emitted from the liquid crystal panel will enter the low refractive index pattern layer and then be emitted through the high refractive index pattern layer.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: April 23, 2019
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Young Hyun Ju, Young Min Kim, Young Oh
  • Patent number: 10267959
    Abstract: A light scattering film includes a light transmissive base having a plurality of holes, wherein each of the plurality of holes has a diameter ranging from about 100 nm to about 5 ?m, and wherein a gap among adjacent ones of the plurality of holes is about two times to about five times of an average of the diameters of the plurality of holes.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: April 23, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Geebum Kim, Minwoo Kim, Soomin Baek
  • Patent number: 10268071
    Abstract: A light guide plate which includes a light incident surface, a light conversion element, an accommodation through hole and a diffusion element, the accommodation through hole is formed in the light guide plate and is adjacent to the light incident surface, the light conversion element is accommodated in the accommodation through hole, and the diffusion element is disposed on the light incident surface. Also disclosed is a light having a backlight module and a liquid crystal display having the light guide plate. A light conversion element is accommodated in the light guide plate, so as to avoid over-heating the light conversion element to further avoid reducing the color gamut of the product.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: April 23, 2019
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yanxue Zhang
  • Patent number: 10261235
    Abstract: A display apparatus which is not subject to light leakage from a cut edge of a quantum dot layer includes a display panel and a backlighting module. The backlight module includes light source, light guide plate, and quantum dot enhancement layer. The quantum dot enhancement layer has functional and invalidation portions. The functional portion converts light from the light guide plate into predetermined wavelengths. The invalidation portion is formed in the non-display region, and is unable to convert light from the light guide plate into predetermined wavelengths. A distance between a side surface of the invalidation portion and a side surface of the main display region is larger than or equal to a predetermined distance. The effect of the predetermined distance is to prevent the light leaking or transmitted from the invalidation portion from entering the display region at normal viewing angles.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: April 16, 2019
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wen-Chin Lo, Chun-Yun Pan, Sin-Tung Huang, Chien-Yu Wei
  • Patent number: 10255842
    Abstract: A displaying system having a function of sensing displaying properties includes a displaying panel, a controlling module, and an optical sensor. The displaying panel has a displaying surface which includes a presentation area and a function area. The function area is at a side of the displaying panel. The function area has a length in pixels longer than that of the presentation area. The controlling module is electrically connected to the displaying panel and the optical sensor and controls the displaying panel to display a presentation image displayed on the displaying area and an image for inspection on the function area. The optical sensor is disposed corresponding to the function area and senses the image for inspection to generate an inspection signal relative to the image for inspection. Thereby, the controlling module can further adjust displaying parameters of the displaying panel.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: April 9, 2019
    Assignee: Qisda Corporation
    Inventor: Chung-Ting Yen
  • Patent number: 10254463
    Abstract: A liquid crystal display device includes: a liquid crystal display panel; a light guide plate having adjacent first and second light incidence surfaces below the liquid crystal display panel; a reflection plate disposed under the light guide plate; and first and second light-emitting diodes (LEDs) facing the first and second light incidence surfaces, respectively, wherein the light guide plate comprises: a first prism pattern configured on a lower surface of the light guide plate and extending in a first direction parallel to the first light incidence surface; and a second prism pattern configured on an upper surface of the light guide plate and extending in a second direction parallel to the second light incidence surface.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: April 9, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Jung Han, Eun-Hee Choi
  • Patent number: 10243025
    Abstract: A display device includes: a first substrate including a display area and a pad area; a second substrate facing the first substrate; a touch unit on the second substrate; a window on the touch unit, the window covering the display area and the pad area; an adhesive layer between the window and the touch unit and under the window at the pad area; and a first light source unit under the window at the pad area.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: March 26, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Se-In Chang
  • Patent number: 10234093
    Abstract: An optical waveguide for the propagation of a light beam adapted to travel by successive total reflections off the faces of the waveguide to an output face where the light beam is refracted. One of the faces of the waveguide forms, facing towards the output face, a support face for a pattern extending across the main direction of the beam to divert same towards the output face. According to a characterizing feature of the invention, the pattern is a bifunctional reflective pattern that is integral with the support face, having three portions including end portions formed by cone portions between which there is interposed an intermediate portion that comprises two facets that meet at a top edge, which is not parallel to the support face for the patterns.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: March 19, 2019
    Assignee: VALEO VISION
    Inventors: Francois Germon, Jean-Francois Doha, Boubacar Sagna
  • Patent number: 10234735
    Abstract: A display device is provided. The display device includes a display panel, an electronic element, a flexible circuit board, a frame and a roller. The electronic element is located outside the display panel; the flexible circuit board connects the display panel to the electronic element; the frame includes a protrusion portion extending out of the display panel, the protrusion portion overlaps with a portion of the flexible circuit board located between the display panel and the electronic element; and at a position where the flexible circuit board overlaps with the protrusion portion of the frame, the roller is disposed between the flexible circuit board and the protrusion portion.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: March 19, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE DISPLAY LIGHTING CO., LTD.
    Inventors: Wenbo Sun, Qiping Zhang, Jitai Xia
  • Patent number: 10216054
    Abstract: According to one embodiment, a display device includes a liquid crystal display panel and a backlight device. The backlight device includes a light guide plate opposed to the back surface of the liquid crystal display panel, and light sources opposed to a light incident surface of the light guide plate. The light guide plate includes divided light guide plates, each having a first main surface, a second main surface, the light incident surface, and side surfaces cross to the main surface and the light incident surface, and an adhesive member connecting the side surfaces of the divided light guide plates to each other and having optical properties different from optical properties of the divided light guide plates.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 26, 2019
    Assignee: Japan Display Inc.
    Inventor: Takashi Ota
  • Patent number: 10215366
    Abstract: A display device has a backlight unit and a display panel on the backlight unit. The backlight unit has a bottom cover, a light guide plate on the bottom cover, a reflective sheet under the light guide plate, a printed circuit board disposed at one lateral side of the light guide plate, a plurality of light emitting diodes mounted on the printed circuit board, and two or more optical sheets including a wavelength conversion sheet, wherein the wavelength conversion sheet has a lower substrate, an upper substrate on the lower substrate, a wavelength conversion layer between the lower substrate and the upper substrate, a lower anti-reflective layer under the wavelength conversion layer, a lower impact absorbing layer under the lower substrate, and an upper impact absorbing layer on the upper substrate.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: February 26, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Jeong Taek Oh
  • Patent number: 10209561
    Abstract: A backlight module and a display device. The backlight module comprises a plurality of light strips arranged along a first direction on a same plane, where each of the light strips extends along a second direction on the plane and comprises: a printed circuit board and a plurality of light sources. The printed circuit board comprises a first mounting surface and a second mounting surface which are opposite to each other and not parallel to the plane; the plurality of light sources is electrically connected with the printed circuit board and comprises a plurality of first light sources and a plurality of second light sources, where the first light sources are disposed on the first mounting surface of the printed circuit board, and the second light sources are disposed on the second mounting surface of the printed circuit board. The backlight module has relatively high brightness.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 19, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE CHATANI ELECTRONICS CO., LTD.
    Inventors: Jinze Li, Zhendong Zhou, Dongsheng Yang
  • Patent number: 10209428
    Abstract: A lighting device includes an annular light source including light sources arranged in a circular pattern, a light guide plate having a round shape in a plan view, and a case holding the annular light source and the light guide plate. The light guide plate is disposed inside the annular light source. The light guide plate includes light entering portions, circumferentially aligned portions, and a light emitting portion. The light entering portions are opposed to the light sources. Each circumferentially aligned portion is between the adjacent light entering portions. A dimension of the circumferentially aligned portion in the radial direction is larger than a dimension of the light entering portion in the radial direction. The circumferentially aligned portions are aligned with the light sources in the circumferential direction and configured to contact the light sources when the light guide plate is rotated in the circumferential direction.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 19, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Ryuzo Yuki, Hisashi Watanabe, Takeshi Masuda, Mitsuhiro Murata, Shinya Kadowaki, Takeshi Ishida
  • Patent number: 10210814
    Abstract: A display device is disclosed. The display device includes a display panel, a frame positioned in the rear of the display panel, a backlight unit positioned between the display panel and the frame and providing light for the display panel, and a heat dissipation protrusion formed on the frame and contacted with the backlight unit.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: February 19, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangmin Baek, Hyongil Kil, Jaehyung Jeon, Juyoung Joung
  • Patent number: 10197851
    Abstract: The present disclosure discloses a backlight module and a method for assembling the same, and a display device. The backlight module includes a backplate and a light strip, wherein, on the backplate is provided a fixing structure, the fixing structure including a resilient press tab provided with a protrusion thereon projecting toward the surface of the backplate, and on the light strip is provided a hole which can be matched with the protrusion on the resilient press tab.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: February 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE DISPLAY LIGHTING CO., LTD.
    Inventors: Jitai Xia, Wenbo Sun
  • Patent number: 10197849
    Abstract: An illumination apparatus includes a pair of substrates arranged oppositely to each other with a distance, and a light source disposed on a side surface of one of the pair of substrates. The illumination apparatus further includes an electrode that is provided on a surface of each of the pair of substrates and generates an electric field in a direction intersecting perpendicularly to the surface of the substrate. The illumination apparatus further includes a light modulation layer that is disposed at a clearance between the pair of substrates and is configured to exhibit scattering property or transparency to light from the light source, based on magnitude of the electric field generated by the electrode. The electrode includes a plurality of first electrode blocks on a surface of one of the pair of substrates.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: February 5, 2019
    Assignee: Sony Corporation
    Inventors: Shogo Shinkai, Akira Ebisui
  • Patent number: 10191203
    Abstract: A stacking-type optical sheet module includes an upper optical sheet having a first structural pattern with first unit light-condensing bodies successively repeated and cross-sectional areas gradually decreasing towards the top. A lower optical sheet has a second structural pattern and is below the upper optical sheet in a stack. Second and third unit light-condensing bodies are successively disposed in the second structural pattern. The second unit bodies have a gradually decreasing cross-sectional area toward the top and are joined with the upper optical sheet, and the third unit bodies have a gradually decreasing cross-sectional area toward the top, a vertical distance from a lowest to a highest portion thereof being relatively shorter than a corresponding vertical distance of the second unit bodies. A vertical angle of the highest portion of the second unit bodies is relatively smaller than a vertical angle of the highest portion of the third unit bodies.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: January 29, 2019
    Assignee: LMS CO., LTD
    Inventors: Sung Sik Cho, Dong Cheol Lee, Tae Jun Lee, Hee Jeong Kim
  • Patent number: 10191207
    Abstract: A light emitting module adapted to a mainboard is provided. The mainboard includes a side edge. The light emitting module comprises a circuit board and a light guide bar. The circuit board is detachably attached to the mainboard and adjacent to the side edge of the mainboard. A plurality of light emitting elements are disposed at the circuit board. The light guide bar is disposed at the circuit board, when the light emitting module is assembled to the mainboard, the light guide bar uniformly guides light from the light emitting elements. An electronic device including the light emitting device is also provided.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: January 29, 2019
    Assignee: ASUSTeK COMPUTER INC.
    Inventors: Ho-Jui Kao, Yu-Sheng Wang
  • Patent number: 10185076
    Abstract: A light emitting diode package for a directional display may comprise light emitting diodes and a protection diode. The protection diode may be arranged in a well that is at a different location to the well that the light emitting diodes are arranged. The directional display may include a waveguide. The waveguide may include light extraction features arranged to direct light from an array of light sources by total internal reflection to an array of viewing windows and a reflector arranged to direct light from the waveguide by transmission through extraction features of the waveguide to the same array of viewing windows. The brightness of the directional display can be increased. An efficient and bright directional display system can be achieved. Efficient light baffling for light escaping from the edge of the waveguide is achieved through light deflecting extraction films.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: January 22, 2019
    Assignee: RealD Spark, LLC
    Inventors: Graham J. Woodgate, Michael G. Robinson, Jonathan Harrold
  • Patent number: 10186688
    Abstract: An exemplary embodiment of the present disclosure provides a display device including: a substrate configured to include a display area and a peripheral area positioned at an outer circumference of the display area; a display member configured to be positioned on the substrate; an anti-reflective layer configured to be positioned on the display member; and a passivation layer configured to be positioned in a peripheral area of the substrate and to be adjacent to one end portion of the anti-reflective layer, wherein the anti-reflective layer may include a plurality of first lateral surfaces, and an area of one of the plurality of first lateral surfaces contacting the passivation layer may be larger than that of the anti-reflective layer cut in a direction parallel to one end portion of the anti-reflective layer.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: January 22, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jun Namkung
  • Patent number: 10185074
    Abstract: The present invention provides a backlight module used in liquid crystal displays. The backlight module includes a quantum dots film, a light guide plate and a light source module. A light is emitted from the light source module enter into the quantum dots film through the light guide plate. The quantum dots film comprises an active region and an inactive region. The light source module includes a blue light source and a green light source. The blue light source is corresponding to the active region, and the green light source is corresponding to the inactive region. The present invention further provides a backlight module used in liquid crystal displays. The present invention provides a backlight module and quantum dots film of liquid crystal display which can resolve a defect of quantum dots film fails in the cutting position, and the quantum dots film has high color gamut conversion.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: January 22, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yan Cheng, Shih-hsiang Chen, Mei Han
  • Patent number: 10185079
    Abstract: Disclosed herein is a display apparatus having a quantum dot sheet to change color by converting the wavelength of blue lights, a middle mold having a middle supporting unit to support a front edge unit of a light guide plate, and a supplement member coupled to the middle supporting unit and configured to reflect the light radiated from the a source to prevent the light that is radiated from the light source from exiting through the gap between the light guide plate and the middle supporting unit, and thus the generation of bright line may be minimized and heat radiation performance may be enhanced.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: January 22, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Gyu Yoon, Heong Seog Lee
  • Patent number: 10173131
    Abstract: A display device has a display panel including an image display area in which an image is displayable, a light guide plate arranged at a back of the display panel, the light guide plate comprising a transparent material and having a first incident surface and a second incident surface, a first light source facing the first incident surface, a second light source facing the second incident surface, and a controller configured to control turning on and turning off of the first light source and the second light source and to control an image displayed on the display panel. The light guide plate includes an emission surface facing the display panel, and a plurality of first prisms arranged in an area in correspondence with the image display area on a surface opposite to the emission surface.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: January 8, 2019
    Assignee: OMRON Corporation
    Inventors: Junya Fujita, Jun Kishimoto, Yuji Hirose
  • Patent number: RE47196
    Abstract: A liquid crystal panel assembly includes a liquid crystal panel, a backlight module having at least one light emitting diode (LED) light source to irradiate light to the liquid crystal panel, and a housing which surrounds the liquid crystal panel and the backlight module. At least a portion of the housing adjacent to the at least one LED light source is formed of a thermal-conductive material.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: January 8, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-hyun Cho, Joon Kang