Patents Examined by Jia X Pan
  • Patent number: 11630336
    Abstract: A privacy display comprises a polarised output spatial light modulator, reflective polariser, plural polar control retarders and a polariser. In a privacy mode of operation, on-axis light from the spatial light modulator is directed without loss, whereas off-axis light has reduced luminance. Further, display reflectivity is reduced for on-axis reflections of ambient light, while reflectivity is increased for off-axis light. The visibility of the display to off-axis snoopers is reduced by means of luminance reduction and increased frontal reflectivity to ambient light. In a public mode of operation, the liquid crystal retardance is adjusted so that off-axis luminance and reflectivity are unmodified.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: April 18, 2023
    Assignee: RealD Spark, LLC
    Inventors: Michael G. Robinson, Graham J. Woodgate, Jonathan Harrold, Robert A. Ramsey
  • Patent number: 11630338
    Abstract: According to one embodiment, a display device includes a display panel, a third transparent substrate, a light-emitting element, and a modulation element. The display panel includes a first transparent substrate, a second transparent substrate, a first liquid crystal layer of a polymer dispersed type held. The third transparent substrate has a first end portion. The light-emitting element is opposed to the first end portion. The modulation element includes a fourth transparent substrate and a fifth transparent substrate disposed between the light-emitting element and the first end portion, a second liquid crystal layer, and control electrodes for applying voltage to the second liquid crystal layer.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: April 18, 2023
    Assignee: Japan Display Inc.
    Inventors: Takayuki Imai, Takeo Koito
  • Patent number: 11630343
    Abstract: A display apparatus includes a light source emitting light; a light guide plate having a first surface and a second surface, and spreading light emitted from the light source therein to emit light through the first surface; and a local dimming unit configured to pass or scatter light emitted through the second surface of the light guide plate according to a position. The local dimming unit may include: an electro-optical layer configured to which optical properties change according to an electric field; and a plurality of electrodes positioned on the same plane to generate the electric field.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: April 18, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin Hyun Cho, Nam Seok Roh, Sang Hyun Sohn, Jong Hee Han
  • Patent number: 11619847
    Abstract: An electro-optical liquid crystal cell comprising a first substrate, a first layer of indium tin oxide (ITO) on the first substrate, a first layer of WSe2 on the first layer of ITO on the first substrate, and a layer of liquid crystal on the first layer of WSe2 on the first layer of ITO on the first substrate. Furthermore, the electro-optical liquid crystal cell can comprise a second layer of WSe2, a second layer of ITO, and a second substrate. This WSe2 cell exhibits the required electro-optic effect needed for a liquid crystal display. This WSe2 cell exhibits high optical transmission.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: April 4, 2023
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventor: Rajratan Basu
  • Patent number: 11614652
    Abstract: According to one embodiment, a display device comprises substrates, a liquid crystal layer containing stringy polymers, a display area with first and second pixels and a light source. In a spatial frequency spectrum obtained by performing FT on a pattern of the polymers which overlap the pixels with respect to first and second frequency components, when an outline in a plane defined by the components in an area having a value of 75% or more of the maximum value is defined as an evaluation circle, and a value obtained by dividing a length of a major axis of the circle by that of a minor axis is defined as an evaluation value, the evaluation value of the first pixel is greater than that of the second pixel.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: March 28, 2023
    Assignee: Japan Display Inc.
    Inventors: Tenfu Nakamura, Kojiro Ikeda, Kentaro Okuyama
  • Patent number: 11604379
    Abstract: Provided is a liquid crystal display device and a polarizing plate capable of improving the contrast ratio in the front direction. The polarizing plate includes a pair of polarizers including a first polarizer and a second polarizer whose transmission axes are parallel to each other; a retarder between the paired polarizers; and a diffusion layer in at least one of a region between the paired polarizers or a region on a side without the retarder of the first polarizer.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: March 14, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Yuichi Kawahira, Masahiro Hasegawa, Kiyoshi Minoura
  • Patent number: 11598902
    Abstract: An optical member includes a base material containing aluminum or aluminum alloy, a first layer including black porous aluminum oxide provided on the base material, and a second layer including aluminum oxide having a plurality of projection portions provided on the first layer.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: March 7, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Nakabayashi, Hiroyuki Tanaka, Masaya Hisamatsu, Manami Tomizuka
  • Patent number: 11586067
    Abstract: Processing methods may be performed to form a pixel material in a semiconductor substrate. The methods may include forming a lithographic mask overlying the semiconductor substrate. The lithographic mask may include a window. The method may include forming a via in the semiconductor substrate by a dry etch process through the window. The method may also include forming the pixel material by depositing a fill material in the via.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: February 21, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Lan Yu, Benjamin D. Briggs, Tyler Sherwood, Raghav Sreenivasan
  • Patent number: 11579483
    Abstract: A near-to-eye display device, includes: a display screen configured to display different images in a first time division mode, a polarization converter at a light-emitting side of the display screen and configured to convert emitted light of the different images displayed by the display screen into first circularly polarized light rays and second circularly polarized light rays in a second time division mode. Here the first circularly polarized light rays and the second circularly polarized light rays are opposite in rotation direction. The device further includes a polarization lens at a side facing away from the display screen of the polarization converter, and a focusing lens at a side facing away from the display screen of the polarization converter. The polarization lens and the focusing lens are configured to focus the first circularly polarized light rays and the second circularly polarized light rays at positions of different focal lengths.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: February 14, 2023
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ruijun Dong, Xue Dong, Hao Zhang, Wenhong Tian, Yulong Wu, Chenru Wang, Ke Li, Jiarong Bai, Na Han
  • Patent number: 11573452
    Abstract: Processing methods may be performed to forming a pixel material in a semiconductor structure. The methods may include forming a sacrificial hardmask overlying an uppermost layer of an optical stack of the semiconductor structure, the uppermost layer having a thickness. The methods may include forming a via through the sacrificial hardmask in the optical stack by a first etch process unselective to a metal layer of the semiconductor structure. The methods may include filling the via with a fill material, wherein a portion of the fill material extends over the sacrificial hardmask and contacts the metal layer. The methods may include removing a portion of the fill material external to the via by a removal process selective to the fill material. The methods may also include removing the sacrificial hardmask by a second etch process selective to the sacrificial hardmask while maintaining the thickness of the uppermost layer.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: February 7, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Lan Yu, Benjamin D. Briggs, Tyler Sherwood, Raghav Sreenivasan
  • Patent number: 11573460
    Abstract: A liquid crystal display device includes a plurality of pixels, each pixel includes a first electrode, a second electrode opposed to the first electrode, and a liquid crystal layer between the second electrode and the first electrode; a first region in each of the plurality of pixels having a first optical path length between the first electrode and the second electrode; a second region in each of the plurality of pixels having a second optical path length between the first electrode and the second electrode, the second optical path length being shorter than the first optical path length, the second region has the liquid crystal layer equal in thickness to the liquid crystal layer in the first region; and an optical path length adjusting layer between the liquid crystal layer and the first electrode in the first region.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 7, 2023
    Assignee: SONY CORPORATION
    Inventor: Tsuyoshi Okazaki
  • Patent number: 11567354
    Abstract: According to an embodiment, a display device comprises a frame defining an opening, a grip extending from the frame, and a display panel which is held by the frame and whose background is visually recognizable. Further, the opening includes a region surrounded by an inner edge of the frame and the display panel.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: January 31, 2023
    Assignee: Japan Display Inc.
    Inventors: Koji Hiramoto, Norika Ikeda, Ken Sugiyama
  • Patent number: 11567352
    Abstract: The present application discloses a display module, a preparation method thereof, and a display apparatus. In a non-display region of the display panel, the display panel and the optical adhesive have a first open pore and a second open pore penetrating through their thickness, respectively; and an orthographic projection of the first open pore falls in an orthographic projection of the second open pore on the cover plate. A light shading part in the light shading region has a third open pore surrounding the light transmitting region; and the light shading part includes a photochromic material in a light shading state, and an orthographic projection of the light shading part on the cover plate at least covers a region, which does not overlap with the orthographic projection of the first open pore on the cover plate, of the orthographic projection of the second open pore on the cover plate.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: January 31, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd,.
    Inventors: Chuandong Liao, Liqiang Chen, Mengyuan Pang, Yaming Wang, Yanxin Wang, Dongdong Zhao
  • Patent number: 11556027
    Abstract: According to one embodiment, a display device includes a first transparent substrate including a first end portion, a second transparent substrate including a second end portion and opposing the first transparent substrate and a plurality of light-emitting devices provided along the second end portion, and the first transparent substrate includes a first driver provided in a first region located between the first end portion and the second end portion and located without overlapping the second transparent substrate in planar view, the second end portion includes a concavity, and at least one first light-emitting device of the light emitting devices, provided along the concavity, oppose the first driver with a predetermined interval therebetween.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: January 17, 2023
    Assignee: Japan Display Inc.
    Inventor: Yuuichi Kanesaka
  • Patent number: 11556022
    Abstract: The embodiments of the present disclosure provide a liquid crystal display device. The liquid crystal display device includes: a display panel, including a display region and a non-display region surrounding the display region; a back plate, arranged opposite to the display panel, where the back plate comprises a bottom wall and a side wall extending from the bottom wall to one side of the display panel; a backlight source, arranged between the display panel and the back plate, where the backlight source comprises a light source arranged on the bottom wall of the back plate and a diffusion plate arranged on a light emitting side of the light source; and a middle frame, where the middle frame comprises a first support part, and a second support part connected with one side, deviating from the display panel, of the first support part.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: January 17, 2023
    Assignees: Hefei BOE Display Technology Co., Ltd., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Wenbo Dong, Jianming Liu, Wei Kang, Chaoyue Wang
  • Patent number: 11550139
    Abstract: A night-vision optical device is provided, including a main body, a lens module, and a display module. The lens module includes an aperture element, a lens element, an electromagnetic driving assembly, an image sensor, and a digital signal processor. In response to an ambient light level around the night-vision optical device satisfying a predetermined condition, the digital signal processor (DSP) controls the night-vision optical device to enter a first mode, and controls the electromagnetic driving assembly to drive a first portion of a filter member to a first position to align an optical axis of the lens element. In response to the ambient light level not satisfying a predetermined condition, the DSP controls the night-vision optical device to enter a second mode, and controls the electromagnetic driving assembly to drive the second portion of the filter member to the first position.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 10, 2023
    Assignee: CHANGING INTERNATIONAL COMPANY LIMITED
    Inventor: Han-Che Chen
  • Patent number: 11543695
    Abstract: The present disclosure provides a light-adjusting glass and a manufacturing method thereof, and a glass assembly, and belongs to the field of display glass technology. The light-adjusting glass of the present disclosure includes at least one light-adjusting module; the light-adjusting module includes a first substrate and a second substrate opposite to each other, and a dye liquid crystal layer between the first substrate and the second substrate; wherein liquid crystal molecules in the dye liquid crystal layer deflect under a control of an electric field between the first substrate and the second substrate, to control a transmittance of light; wherein the dye liquid crystal layer includes a polymer network, which is configured such that when the electric field between the first substrate and the second substrate changes, twisting degrees of the liquid crystal molecules are identical, and twisting degrees of dye molecules are identical.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: January 3, 2023
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Xiaojuan Wu, Xiaoqiang Zhang, Zhiqiang Zhao, Wei Zhao, Chunlei Wang, Hongliang Yuan, Jian Wang, Jing Yu
  • Patent number: 11537011
    Abstract: A display device includes a first substrate including a display area including pixels, a non-display area disposed around the display area, and a base substrate, a second substrate facing the first substrate, and a printed circuit board attached to side surfaces of the first substrate and the second substrate, wherein the first substrate includes a plurality of connection wirings connected to the pixels, arranged on the base substrate, extending along a first direction, and spaced apart from each other along a second direction intersecting the first direction, and a plurality of connection pads arranged on the side surface of the first substrate and the side surface of the second substrate, connected to the connection wirings, extending along a thickness direction, and spaced apart from each other along the second direction, the first substrate further includes a coupling member disposed between the printed circuit board and the side surface of the first substrate and between the printed circuit board and the
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: December 27, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Byoung Yong Kim
  • Patent number: 11526046
    Abstract: According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate having a first side surface and a second side surface, and a liquid crystal layer including a stripe-shaped polymer and liquid crystal molecules. The liquid crystal layer has a first region and a second region. When no voltage is applied to the liquid crystal layer, a first intersection angle of a first director of a first liquid crystal molecule and a first extension axis of the polymer included in the first region is different from a second intersection angle of a second director of a second liquid crystal molecule and a second extension axis of the polymer included in the second region.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: December 13, 2022
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Tenfu Nakamura, Kentaro Okuyama
  • Patent number: 11526056
    Abstract: A display device is described that includes an optical member such as a camera. According to an exemplary embodiment, the display device includes: a substrate that overlaps a light transmission area, a display area that surrounds the light transmission area, and a boundary area that is disposed between the light transmission area and the display area; a first light blocking member that is disposed on the substrate and overlaps the boundary area; a window that overlaps the substrate; and a second light blocking member that is disposed between the first light blocking member and the window, and overlaps the boundary area, wherein the first light blocking member includes a first opening that overlaps the light transmission area, the second light blocking member includes a second opening that overlaps the light transmission area, and a diameter of the first opening is larger than a diameter of the second opening.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: December 13, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jung Hyun Kim