Patents Examined by Edmond C Lau
  • Patent number: 11640080
    Abstract: A reflective display panel and a display device are provided. The reflective display includes: a first liquid crystal cell including a first substrate and a second substrate oppositely arranged to each other, and a first liquid crystal layer between the first substrate and the second substrate; a plurality of pixel units on the first substrate, where each pixel unit includes a first sub-pixel unit and a second sub-pixel unit; an optical structure, arranged at a light-emitting side of the first liquid crystal cell and covering the pixel units.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: May 2, 2023
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanni Liu, Hui Wang, Huijuan Yu, Yang Xue
  • Patent number: 11640043
    Abstract: An optical focus control and method use rotations of a set of shift-invariant optical elements (Risley elements) that are fairly tolerant to optical misalignments and wobble in control systems. The Risley elements can be Risley prisms, Risley gratings, or photonic crystals that impart a fixed angular offset. Aligning at least one pair of Risley elements that are individually rotated can achieve an angular correct to light received off-axis for better detection by an optical detector, improving focus control.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: May 2, 2023
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventor: Joshua Lentz
  • Patent number: 11630309
    Abstract: An image light generation module includes a first display element configured to emit first image light, a second display element configured to emit second image light, a third display element configured to emit third image light, a combining prism configured to emit combined image light combined from the first image light, the second image light, and the third image light, and a first gap defining member that defines a first gap between the first display element and the combining prism, a second gap defining member that defines a second gap between the second display element and the combining prism, and a third gap defining member that defines a third gap between the third display element and the combining prism, in which at least one of the first gap, the second gap, and the third gap is different in size from another of the gaps.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: April 18, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mitsutaka Ide, Masatoshi Yonekubo
  • Patent number: 11609447
    Abstract: According to one embodiment, a display device includes a liquid crystal display panel including a first substrate, a second substrate, a first liquid crystal layer, a first polarizer and a second polarizer, a dimming panel including a third substrate, a fourth substrate, a second liquid crystal layer, a third polarizer and a fourth polarizer, a first transparent conductive layer provided on the first substrate, a conductive tape connected to the first transparent conductive layer and a first metal frame formed of a metal material, and the conductive tape is connected to the first metal frame.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: March 21, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Shimon Itakura, Yuzo Ota
  • Patent number: 11609367
    Abstract: A light source module includes a light guide plate, a light source, a first color conversion film, at least one optical film and an ink coating. The light guide plate has a first light-emitting surface, a second light-emitting surface opposite to the first light-emitting surface, and a light-incident surface connected between the first light-emitting surface and the second light-emitting surface. The light source is disposed beside the light-incident surface. The first color conversion film is disposed beside the first light-emitting surface. The at least one optical film is disposed beside the light guide plate. The ink coating is disposed on a surface edge or an end surface of at least one of the light guide plate, the first color conversion film, and the at least one optical film, and is configured to allow light to pass therethrough. A display device of the invention is further provided.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: March 21, 2023
    Assignee: Coretronic Corporation
    Inventors: Hui-Chuan Chen, Yu-Fan Chen
  • Patent number: 11592862
    Abstract: An information handling system peripheral display monitor presents visual images at a liquid crystal display panel with illumination distributed across the display panel by a backlight. A light bar of plural light emitting diodes (LEDs) at a bottom side surface of the backlight directs illumination into the backlight from an upper surface and includes plural downlight LEDs on a bottom surface to direct illumination out a downlight opening formed in a housing of the display monitor.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: February 28, 2023
    Assignee: Dell Products L.P.
    Inventors: Guentaek Oh, Yong Gu Kang
  • Patent number: 11586045
    Abstract: The present disclosure discloses a near-eye display apparatus including: a first display screen and a second display screen; and a first collimating lens, a second collimating lens, a first polarization converter which converts emitted light of the first display screen into first circularly polarized light, a second polarization converter which converts emitted light of the second display screen into second circularly polarized light, a waveguide plate configured to conduct the first circularly polarized light and the second circularly polarized light, and a super lens which is located in a light emitting region of the waveguide plate.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: February 21, 2023
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Na Han, Chenru Wang, Ruijun Dong, Yulong Wu, Ke Li, Jiarong Bai, Hao Zhang
  • Patent number: 11573429
    Abstract: A polarized light irradiation apparatus includes: a light source unit including a light source, and emitting parallel light derived from the light source; a polarizing plate for polarizing the parallel light emitted from the light source unit to output polarized light; a polarizing plate holder for holding the polarizing plate; a mask holder for holding a mask having a light transmissive part and a light shielding part; a work stage for holding a work that is irradiated with light that has been polarized by the polarizing plate and has passed the mask; a polarization direction changer for changing a direction of a polarization axis of light for irradiating the work held by the work stage; and an irradiation location changer for changing a location of the polarized light that irradiates the work.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: February 7, 2023
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventor: Kazumasa Ishii
  • Patent number: 11573447
    Abstract: A display device is provided and includes first display area including first pixel; second display area including second pixels and provided next to first display area; light shield surrounding first and second display areas separately, first slit provided in light shield, first sealant surrounding first and second display areas; and second sealant located between first and second display areas, wherein second sealant comprises at least one opening which communicates first and second display areas to each other, and first slit is provided along outer circumference of first display area and outer circumference of second display area, and overlaps base end of second sealant which is connected with first sealant.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: February 7, 2023
    Assignee: Japan Display Inc.
    Inventor: Koichiro Adachi
  • Patent number: 11573443
    Abstract: A liquid crystal display panel, including a liquid crystal cell, a liquid crystal, a light-transmitting cover plate and a light-transmitting support structure; where the liquid crystal is located in the liquid crystal cell, the cover plate covers a side where a target surface for emitting light is located of the liquid crystal cell, and the support structure is located between the cover plate and the liquid crystal cell; and an orthogonal projection region of the support structure on the target surface is a partial region of the target surface, and the partial region comprises at least part of an active display region of the target surface.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: February 7, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qian Jia, Xinxing Wang, Yingtao Wang, Xuefei Sun, Xiaona Xu
  • Patent number: 11567361
    Abstract: The present disclosure relates to the field of display technology, and provides a display module and a display device. The display module includes a first display sub-panel, where the first display sub-panel includes: a first display sub-panel including a plurality of first pixel units; and a second display sub-panel arranged at a light-entering side of the first display sub-panel and including a plurality of second pixel units. Each second pixel unit corresponds to at least one first pixel unit, an orthogonal projection of each second pixel unit onto the first display sub-panel coincides with the corresponding first pixel unit, and the second display sub-panel is a vertical-electric-field-type liquid crystal display panel.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: January 31, 2023
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zuquan Hu, Peng Jiang, Ke Dai, Yue Du, Rongcheng Liu
  • Patent number: 11570338
    Abstract: A light-concentrating device, a light-concentrating display screen, and an electric product are provided. The light-concentrating device includes a light-concentrating plate. The light-concentrating plate includes dimming units, each dimming unit including a house, the house being filled with first light-transmissive liquid and second light-transmissive liquid insoluble with each other. Light may be refracted when passing through the interface between the first light-transmissive liquid and the second light-transmissive liquid. Adjustment electrodes are provided on sides of the house, and a common electrode layer is provided at an end of the house. The voltages may be applied between the common electrode layer and the adjustment electrodes on the sides of the house.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: January 31, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Yuhu Jia
  • Patent number: 11567357
    Abstract: A display device may include a display panel including an active area displaying an image and a peripheral area surrounding the active area, pad parts disposed on a side surface of the display panel, a light blocking layer disposed on a portion of the peripheral area adjacent to the side surface of the display panel, and circuit units electrically connected to the pad parts.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myong-Soo Oh, Minsung Kim, Heejong Shin, Juno Song
  • Patent number: 11561401
    Abstract: Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: January 24, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Vaibhav Mathur, Joshua Naaman Haddock, Ted Diehl, Chulwoo Oh, Clinton Carlisle
  • Patent number: 11556024
    Abstract: A display assembly of an electronic device, the electronic device, and a method for manufacturing the display assembly are provided. The electronic device includes a display assembly and a camera module. The display assembly includes a cover plate, a display panel, and a backlight module that are sequentially stacked together. The cover plate has a light transmitting region, and the light transmitting region corresponds to a display region of the display panel. The display region of the display panel defines a first mounting through hole. The first mounting through hole is provided with a light blocking layer on a hole wall of the first mounting through hole, and an end of the light blocking layer close to the cover plate is attached to the light transmitting region.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: January 17, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Yimei Tang, Jiao Cheng
  • Patent number: 11550188
    Abstract: The purpose of the present invention is to realize the photo alignment film which has good alignment ability and good adhesive strength with the seal material. The structure of the invention is: A liquid crystal display device including a first substrate, having pixel electrodes and a first alignment film, and a second substrate adhere to each other by seal material, and the liquid crystal being sealed inside, in which the first alignment film is formed from a first polyimide, which receives a photo alignment treatment, and a second polyimide, which does not receive the photo alignment treatment, the first polyimide exists 75 to 98 weight % at a surface of the first alignment film on the pixel electrode and at an interface with the seal material, the second polyimide increases gradually in going to depth direction from the surface of the first alignment film in a cross sectional view.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: January 10, 2023
    Assignee: Japan Display Inc.
    Inventors: Ayaka Higuchi, Koichi Igeta
  • Patent number: 11543580
    Abstract: According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate, a liquid crystal layer, light-emitting elements disposed in a first direction, a third transparent substrate including a main surface and a side surface opposed to the light-emitting elements, and a transparent layer disposed on the main surface and having a lower refractive index than the third transparent substrate. The third transparent substrate is bonded to the first transparent substrate or the second transparent substrate with the transparent layer sandwiched in between. The transparent layer includes strip portions disposed in the first direction and extended along a second direction.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: January 3, 2023
    Assignee: Japan Display Inc.
    Inventors: Yudai Numata, Kentaro Okuyama
  • Patent number: 11536992
    Abstract: According to one embodiment, a display system includes an external light sensor, a display panel, a viewing angle control panel including a liquid crystal layer containing liquid crystal molecules twist-aligned, configured such that a drive voltage applied to the liquid crystal layer is controlled based on an external light intensity detected by the external light sensor, and a polarization axis rotation element disposed between the viewing angle control panel and the display panel. The drive voltage when the external light intensity is less than a threshold value is greater than the drive voltage when the external light intensity is greater or equal to than the threshold value.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: December 27, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventor: Toshiharu Matsushima
  • Patent number: 11537001
    Abstract: The purpose of the present invention is to realize a lighting device of thin, low power consumption and small light distribution angle. The present invention takes the following structure to realize the above task: A lighting device comprising: a disc shaped light guide, having a main surface and a rear surface, including a first hole at a center, a disc shaped reflection sheet, disposed at the rear surface side of the light guide, including a second hole at a center, a prism sheet, disposed at the main surface side of the light guide, including a concentric first prism array, wherein a reflection mirror is set in the first hole of the light guide at the side near to the prism sheet, an LED is set opposing to the reflection mirror.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: December 27, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventors: Makoto Hasegawa, Nobuyuki Suzuki, Masafumi Okada
  • Patent number: 11536962
    Abstract: The present disclosure provides an optical system and a near-eye display device. The optical system includes an optical waveguide and an eyepiece system. The eyepiece system is on a light incident side of the optical waveguide, and a light exit side of the eyepiece system is opposite to the light incident side of the optical waveguide so that light exited from the eyepiece system is incident on the optical waveguide. The eyepiece system includes a lens group which includes a first lens, a second lens and a third lens which are sequentially arranged in a direction parallel to the optical axis of the lens group; a side of the first lens away from the second lens is the light exit side of the eyepiece system, each of the first lens and the third lens has a positive focal power; and the second lens has a negative focal power.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: December 27, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Yali Liu, Chenru Wang, Zhiyu Sun, Ruijun Dong, Ke Li, Hao Zhang, Lili Chen