Patents Examined by Ryan Crockett
  • Patent number: 11327385
    Abstract: An optical device (20) includes an electro-optical layer, including a liquid crystal material (24) with a heliconical structure having a pitch that is less than 250 nm and is modifiable by an electric field. An array of excitation electrodes (28) extends over the electro-optical layer. Control circuitry (23) is coupled to apply control voltage waveforms to the excitation electrodes and is configured to modify the control voltage waveforms so as to locally modify a molecule director angle of the heliconical structure and thus to generate a specified phase modulation profile in the electro-optical layer.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 10, 2022
    Assignee: OPTICA AMUKA (A.A.) LTD.
    Inventors: Shamir Rosen, Yoav Yadin, Yariv Haddad
  • Patent number: 11327366
    Abstract: A method for manufacturing a liquid crystal display device includes a step (A) of preparing an active matrix substrate, a step (B) of preparing a counter substrate, and a step (C) of producing a liquid crystal display panel using the prepared active matrix substrate and counter substrate. The step (C) includes a step (C1) of bonding the active matrix substrate with the counter substrate with a predetermined gap interposed therebetween and a step (C2) of forming a liquid crystal layer before or after the step (C1). An alignment film is an alignment film having a specific resistance of 1×1014 ?·cm or greater when a backlight is illuminated. The step (C) further includes, after the steps (C1) and (C2), a step (C3) of irradiating the active matrix substrate, the liquid crystal layer, and the counter substrate with ultraviolet light.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 10, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kei Shinada, Taichi Sasaki, Masahiro Shimizu
  • Patent number: 11307464
    Abstract: The present disclosure provides an array substrate for a reflective display panel, a method for preparing the same, and a display panel, the array substrate including a base and a pixel electrode and a structure for reflecting light arranged on the base, in which the structure for reflecting light is configured to reflect light at a predetermined wavelength and allow light other than the light at the predetermined wavelength to transmit therethrough.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: April 19, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guanglei Yang, Zhixiang Fang
  • Patent number: 11307449
    Abstract: The present application discloses a display panel, a manufacturing method and a display device. The display panel comprises: a color photoresist layer, formed on the substrate, and comprising three types of parallelly disposed first color filter, second color filter and third color filter in different heights; a support pillar, disposed on the color photoresist layer, and comprising a main support pillar disposed on the first color filter; a first auxiliary support pillar, disposed on the second color filter; and a second auxiliary support pillar, disposed on the third color filter. A height difference between the main support pillar and the first auxiliary support pillar is a first section difference; and a height difference between the main support pillar and the second auxiliary support pillar is a second section difference, wherein the first section difference is the same as the second section difference.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: April 19, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Chunhui Yang
  • Patent number: 11300844
    Abstract: A wearable augmented reality head-mounted display system can be configured to pass light from the world forward a wearer wearing the head-mounted system into an eye of the wearer. The head-mounted display system can include an optical display that is configured to output light to form an image. The system may include one or more waveguides that are disposed to receiving the light from the display. A variable power reflector can be disposed on the forward side of the one or more waveguides. The reflector can be configured to have an optical power that is adjustable upon application of an electrical signal.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: April 12, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Brian T. Schowengerdt, John Graham Macnamara, Chulwoo Oh
  • Patent number: 11302222
    Abstract: A display device is provided and includes a supporting substrate, a first flexible substrate, an oxide layer, a first insulating layer, a light emitting unit, and a protective layer. The first flexible substrate is disposed on the supporting substrate, and the oxide layer is disposed on the first flexible substrate. The first insulating layer is disposed on the oxide layer, and in a cross-sectional view, the first insulating layer has at least one opening. The light emitting unit is disposed on the first insulating layer, the protective layer is disposed on the light emitting unit, and at least a portion of the protective layer is disposed in the at least one opening.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: April 12, 2022
    Assignee: InnoLux Corporation
    Inventors: Hsiao-Lang Lin, Tsung-Han Tsai
  • Patent number: 11300838
    Abstract: A transparent display device has a first substrate, a second substrate, and a display medium disposed between the first substrate and the second substrate. A pixel unit of the transparent display includes a transparent region and a display region. In the display region, a first reflective material is disposed between the first substrate and the display medium, and a second reflective material is disposed between the second substrate and the display medium.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: April 12, 2022
    Assignee: InnoLux Corporation
    Inventors: Masahiro Yoshiga, Satoru Takahashi, Toshiya Inada
  • Patent number: 11294225
    Abstract: Provided are liquid crystal glasses and display panel having light leakage elimination element.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: April 5, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Haiyan Wang
  • Patent number: 11281049
    Abstract: In order to provide a phase difference compensating element that has durability and that can improve contrast in a liquid crystal display with high precision while suppressing high costs and long lead times, the present invention is provided with, on a substrate, a first optical anisotropic layer that acts as a C-plate and a second optical anisotropic layer that includes a birefringent film formed by depositing an inorganic material, wherein the birefringent film included in the second optical anisotropic layer is fabricated using specific processes.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: March 22, 2022
    Assignee: Dexerials Corporation
    Inventor: Junichi Sugawara
  • Patent number: 11281050
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first alignment film covering a pixel electrode, a second substrate including a second alignment film covering a second common electrode, a sealant attaching the first substrate and the second substrate, and a liquid crystal layer held between the first alignment film and the second alignment film, wherein the first alignment film and the second alignment film are formed of a material in which a principal chain is composed of silica (SiO2), and extend at a position overlapping the sealant between an inner face and an outer face of the sealant.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: March 22, 2022
    Assignee: Japan Display Inc.
    Inventor: Keisuke Takano
  • Patent number: 11275279
    Abstract: The present application provides a liquid crystal display panel and a method of manufacturing the same. The liquid crystal display panel includes a pixel electrode and liquid crystals, wherein the pixel electrode includes a middle region and a peripheral region located at a periphery of the middle region, the liquid crystals disposed corresponding to the middle region have a first pretilt angle, the liquid crystals disposed corresponding to the peripheral region have a second pretilt angle, and the first pretilt angle is greater than the second pretilt angle.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: March 15, 2022
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yoonsung Um, Kaili Qu, Ziqi Liu, Chuwei Liang, Lintao Liu, Ting Li
  • Patent number: 11276929
    Abstract: A phase-shift unit includes: a first substrate and a second substrate provided opposite to each other; a medium layer provided between the first substrate and the second substrate; a microstrip line disposed at a side of the second substrate facing towards the first substrate; and a grounding layer provided at a side of the first substrate facing towards the second substrate and formed with a via hole; wherein a projection of the via hole onto the second substrate and a projection of the microstrip line onto the second substrate have an overlapped area therebetween; and wherein the via hole is configured to feed a phase-shifted microwave signal out of the phase-shift unit, or feed a microwave signal into the phase-shift unit such that the microwave signal is phase-shifted.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: March 15, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xue Cao, Junhui Wu, Ying Wang, Peizhi Cai, Zhifu Li, Lijun Mao, Jiaheng Wang
  • Patent number: 11271191
    Abstract: A display device includes: a display panel including a flat area and a bended area which extends bent from the flat area; and a cover panel comprises a heat dissipation member. The heat dissipation member includes: a flat portion corresponding to the flat area of the display panel, a bent portion corresponding to the bended area of the display panel, a first opening in the flat portion, and a second opening in the bent portion.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: March 8, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang-Woo Lee, Sun Hee Oh, Boo-Kan Ki, Dong Hyeon Lee, Jeong In Lee
  • Patent number: 11256146
    Abstract: The application relates to an electrode structure, an array substrate and a display device. The electrode structure has hollow portions, and electrode portions formed between adjacent hollow portions; the hollow portions have first and second hollow holes; projection planes of the first and second hollow holes in the first direction are completely overlapped; the electrode portions comprise: first electrode blocks located between the first hollow holes and second electrode blocks located between the second hollow holes; a sum of widths of each first hollow hole and the first electrode block adjacent to it in the first direction is different from a sum of widths of each second hollow hole and the second electrode block adjacent to it in the first direction; the width is a dimension in the first direction. In this solution, process fluctuations can be reduced and light transmittance can be improved.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: February 22, 2022
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xibin Shao, Yingying Qu, Zhihua Sun
  • Patent number: 11256129
    Abstract: An in-cell type liquid crystal panel is disclosed including an in-cell type liquid crystal cell provided with a liquid crystal layer, a first transparent substrate and a second transparent substrate sandwiching the liquid crystal layer, and a touch sensing electrode unit related to a touch sensor and a touch-driven function between the first transparent substrate and the second transparent substrate and a pressure-sensitive adhesive layer attached polarizing film disposed, via a first adhesive layer and without interposing a conductive layer, to the first transparent substrate side on a viewing side of the in-cell type liquid crystal cell. The pressure-sensitive adhesive layer attached polarizing film comprises a surface treatment layer, a first polarizing film, and a first pressure-sensitive adhesive layer in this order, or comprises the surface treatment layer, the first polarizing film, an anchor layer, and the first pressure-sensitive adhesive layer in this order.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: February 22, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Masakuni Fujita, Satoshi Yamamoto, Yusuke Toyama
  • Patent number: 11256140
    Abstract: An optical system is downsized by reducing a tilt angle of an optical compensating plate including a medium having a small refractive index in the thickness direction, in achieving a predetermined contrast. A liquid crystal display apparatus according to the present technology includes a vertical alignment liquid crystal panel, a first optical compensation unit including a medium having a small refractive index in a thickness direction, and being arranged with being tilted from a state parallel to the liquid crystal panel, at a position at which light having passed through the liquid crystal panel or not having passed through the liquid crystal panel enters, and a second optical compensation unit having refractive index aeolotropy at least in an in-plane direction, and being arranged at a position at which light having passed through the liquid crystal panel or not having passed through the liquid crystal panel enters.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: February 22, 2022
    Assignee: SONY CORPORATION
    Inventors: Ryoko Horikoshi, Keigo Inoue
  • Patent number: 11249349
    Abstract: A liquid crystal (LC) device comprising a stack of at least first and second LC cells in optical series, each of the first and second LC cells comprising two half-cells and LC material contained in a space at least partially defined by spacer structures forming an integral part of one or both half-cells; wherein the arrangement within an active area of the device of the spacer structures in one of the first and second LC cells is different to the arrangement within the active area of the device of the spacer structures in the other of the first and second LC cells; and wherein the difference between the two arrangements comprises an ordered aspect.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: February 15, 2022
    Assignee: Flexenable Limited
    Inventors: Barry Wild, William Reeves
  • Patent number: 11249229
    Abstract: A display device may include a display unit disposed on a substrate and a mirror substrate facing the substrate with respect to the display unit. The mirror substrate may include a first minor layer extending continuously on a surface of a transparent substrate and a plurality of minor patterns on the first mirror layer. The first minor layer is formed on both a region in which the plurality of minor patterns are formed and a region in which the plurality of minor patterns are not formed. External light is incident to and reflected by the first minor layer, thus reducing an image haze and enhancing a display quality of the display device. In addition, the first mirror layer and the plurality of mirror patterns may be formed by using a single halftone mask to simplify the manufacturing process and increase a productivity of the mirror substrate.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: February 15, 2022
    Inventors: Dae-Woo Lee, Byoung-Ki Kim, Ho-Jin Yoon, Yun-Mo Chung
  • Patent number: 11243445
    Abstract: A display device according to an exemplary embodiment of the present invention includes: a substrate; a gate line that is disposed on the substrate in a first direction; a data line that is disposed in a second direction, while crossing the gate line; a semiconductor layer that is disposed between the gate line and the data line, a transistor formed by the semiconductor, a part of the gate line, and a part of the data line; a pixel electrode connected with the transistor; and a light blocking member that is disposed on the pixel electrode, wherein the light blocking member is disposed in the second direction while overlapping the data line, the light blocking member includes a first region and a second region, each having a different width in the first direction, and a width of the second region is narrower than a width of the first region.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: February 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Hwan Hong, Jae Bok Chang, Jun Woo Lee
  • Patent number: 11237415
    Abstract: A method of repairing a display panel comprising: determining a pixel where a bright spot defect resides and a position of the bright spot in the pixel; setting a repair region, the repair region being a region in the pixel including the bright spot defect and having an area smaller than that of a single pixel region; forming a black material layer in the repair region, the black material layer being used for preventing light emitted from a directly-below portion thereof from leaving a display surface of the display panel.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: February 1, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Haiping Wang, Xu Yan, Pingping Jia, Ying Xi, Dong Guo