Patents Examined by Mariam Qureshi
  • Patent number: 12007663
    Abstract: A display apparatus including a display panel, a camera module, and a diffraction suppression device is provided. The display panel is provided with multiple signal lines and multiple display pixels. The signal lines and the display pixels are alternately arranged along at least one direction. The camera module has a light receiving surface facing the display panel. The light receiving surface is overlapped with the display panel. The diffraction suppression device is disposed between the display panel and the camera module, and has multiple first light-transmitting regions and multiple second light-transmitting regions alternately arranged along the at least one direction. The first light-transmitting regions are respectively overlapped with the display pixels. The second light-transmitting regions are respectively overlapped with the signal lines.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: June 11, 2024
    Assignee: Acer Incorporated
    Inventors: Jui-Chieh Hsiang, Chih-Chiang Chen
  • Patent number: 12007638
    Abstract: Embodiments of the present application disclose a display panel and a preparation method thereof, and a display device. The display panel comprises a polymer liquid crystal cell and a light source. The polymer liquid crystal cell comprises a first region close to the light source and a second region away from the light source, and the second region has a higher haze than the first region, thereby reducing the light emitting intensity close to the light source region and increasing the light emitting intensity away from the light source region, so that light guide and light emitting in each region of the polymer liquid crystal cell uniform.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: June 11, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qian Deng, Rui He, Wei Cheng
  • Patent number: 12007662
    Abstract: A liquid crystal grating and a holographic display device are provided. The liquid crystal grating includes grating electrode groups. The grating electrode group includes grating electrodes. Operation states of the liquid crystal grating include a first mode and a second mode. In the first mode, a first voltage of a first polarity is provided to the grating electrode, and an average voltage value of the first voltage is |V1|. In the second mode, a second voltage of a second polarity is provided to the grating electrode, and an average voltage value of the second voltage is |V2|, with |V1|<|V2|. In an operation period, light is modulated by the liquid crystal grating to obtain deflected light, the liquid crystal grating is switched between the first mode and the second mode, a quantity of the first mode is N1, and a quantity of the second mode is N2, with N1>N2.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: June 11, 2024
    Assignee: Shanghai Tianma Micro-electronics Co., Ltd.
    Inventors: Yang Zeng, Feng Lu
  • Patent number: 12001035
    Abstract: A display substrate and a display device are provided. The display substrate includes a plurality of repeat units. Each of the plurality of repeat units includes one first-color sub-pixel, one second-color sub-pixel pair and one third-color sub-pixel which are arranged in a first direction, the second-color sub-pixel pair includes two second-color sub-pixels arranging in a second direction. In three sub-pixels of different colors which are adjacent to each other, orthographic projections of light-emitting layers of at least two sub-pixels adjacent to each other on the base substrate are overlapped or connected, and a spacing is disposed between at least part of the light-emitting layers of two sub-pixels which are adjacent to each other.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: June 4, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fengli Ji, Chang Luo, Jianpeng Wu, Lujiang Huangfu
  • Patent number: 12001091
    Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems. A diffraction grating includes a plurality of different diffracting zones having a periodically repeating lateral dimension corresponding to a grating period adapted for light diffraction. The diffraction grating additionally includes a plurality of different liquid crystal layers corresponding to the different diffracting zones. The different liquid crystal layers have liquid crystal molecules that are aligned differently, such that the different diffracting zones have different optical properties associated with light diffraction.
    Type: Grant
    Filed: January 15, 2023
    Date of Patent: June 4, 2024
    Assignee: Magic Leap, Inc.
    Inventor: Chulwoo Oh
  • Patent number: 11994784
    Abstract: Resistive bridges can connect many ring electrodes in an electro-active lens with a relatively small number of buss lines. These resistors are usually large to prevent excessive current consumption. Conventionally, they are disposed in the same plane as the ring electrodes, which means that the ring electrodes are spaced farther apart or made discontinuous to accommodate the resistors. But spacing the ring electrodes farther apart or making them discontinuous degrades the lens's optical quality. Placing the ring electrodes and resistors on layers separated by an insulator makes it possible for the ring electrodes to be closer together and continuous with resistance high enough to limit current consumption. It also relaxes constraints on feature sizes and placement during the process used to make the lens. And because the resistors and electrodes are on different planes, they can be formed of materials with different resistivities.
    Type: Grant
    Filed: May 8, 2023
    Date of Patent: May 28, 2024
    Assignee: e-Vision Smart Optics, Inc.
    Inventors: Anthony Van Heugten, Harry Milton
  • Patent number: 11982914
    Abstract: The present application relates to an array substrate and a display panel. In the present application, a first common line and a first sharing line are respectively disposed on two sides of a scan line, thereby preventing a situation in the prior art that the first sharing line penetrates a main pixel region and a sub-pixel region vertically, thereby improving an aperture ratio and a transmittance of the array substrate. The first common line, the first sharing line, and the scan line are disposed in a same layer, thereby further improving the transmittance of the array substrate.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 14, 2024
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Juncheng Xiao, Ji Li, Fen Long, Yingchun Zhao, Ru Ge
  • Patent number: 11985849
    Abstract: A polarizer and a manufacturing method thereof, a display panel, and a display device are provided. The polarizer includes a polarizing layer, and the polarizing layer includes a first polarizing region and a second polarizing region. A light transmittance of the first polarizing region is greater than a light transmittance of the second polarizing region, and a ratio of the light transmittance of the first polarizing region to the light transmittance of the second polarizing region is 1.1:1 to 2.6:1.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: May 14, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chi Yu, Yu Zhang, Weiyun Huang, Zhenli Zhou
  • Patent number: 11977289
    Abstract: Provided are a wide-viewing-angle optical film, a manufacturing method of the wide-viewing-angle optical film, and a liquid crystal display device. The manufacturing method includes: providing a substrate and forming a first light-transmissive layer at one side of the substrate; performing light treatment on the first light-transmissive layer to form protrusions on a surface of the first light-transmissive layer; and forming a second light-transmissive layer on one side of the first light-transmissive layer away from the substrate, in which a refractive index of a material of the second light-transmissive layer is greater than a refractive index of a material of the first light-transmissive layer to obtain a wide-viewing-angle film including the first light-transmissive layer and the second light-transmissive layer stacked on each other.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: May 7, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yue Wang, Ji Li
  • Patent number: 11977301
    Abstract: A liquid crystal display panel is provided. The liquid crystal display panel includes: a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer and a plurality of strip-shaped spacers disposed between the first substrate and the second substrate. In the liquid crystal display panel, there is an overlapping area between an orthographic projection of a first signal line on a target base and an orthographic projection of a second signal line on the target base, and an orthographic projection of the strip-shaped spacer on the target base is not overlapped with the overlapping area.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: May 7, 2024
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jinshuai Duan, Xiaojuan Wu, Hongliang Yuan, Wei Zhao, Yao Bi, Jiaxing Wang, Hao Yan, Li Tian, Liping Lei
  • Patent number: 11977308
    Abstract: An electrically controlled birefringence liquid crystal display device performs a normally black display. The display device includes a liquid crystal display panel including a liquid crystal layer and a reflective portion to reflect light that is incident through a display surface of the liquid crystal display panel and that passes through the liquid crystal layer, a first polarizing plate on the display surface, and a half-wavelength plate between the liquid crystal display panel and the first polarizing plate. A phase difference ?nd?1 of the liquid crystal layer is less than a half of a phase difference ?nd?2 of the half-wavelength plate. The phase difference ?nd?2 of the half-wavelength plate indicates a positively dispersive wavelength, and a low axis of the half-wavelength plate intersects with an orientation axis of liquid crystal molecules in the liquid crystal layer under no electric field being applied.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: May 7, 2024
    Assignee: Kyocera Corporation
    Inventor: Yuji Soda
  • Patent number: 11971626
    Abstract: Provided are a barrier film having superior close adhesion to a phosphor layer when used for a wavelength conversion sheet, a wavelength conversion sheet having the barrier film, and a backlight and a display device including the wavelength conversion sheet. A barrier film for a wavelength conversion sheet, comprising: a barrier layer; and a primer layer, wherein the primer layer comprises a cured product of a polyurethane-based resin composition, and when a surface of an opposite side of the primer layer from the barrier layer is subjected to X-ray photoelectron spectroscopy to obtain a C1s spectrum, P2/P1 is 0.55 or more, where P1 is an area of a peak assigned to a C—C bond in the C1s spectrum and P2 is an area of a peak assigned to a C—O bond in the C1s spectrum.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: April 30, 2024
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Tatsuji Nakajima, Shuichi Tamura, Takeshi Sakamoto, Ryutaro Harada
  • Patent number: 11963394
    Abstract: A display device includes: a substrate; a display element layer disposed on the substrate, where the display element layer includes a light emitting element which emits light; a polarizing film disposed on the display element layer, where the polarizing film includes a first polarizer having a first absorption axis extending to a first direction and a first transmission axis extending to a second direction orthogonal to the first direction; and a first layer disposed on one surface of the polarizing film, where the first layer has a first phase difference. Light emitted from the display element layer has a polarizing axis, and an angle between the polarizing axis and one of the first absorption axis and the first transmission axis is in a range of about 25 degrees to about 65 degrees.
    Type: Grant
    Filed: September 18, 2023
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Young Lee, Eun Mi Seo, Gil Yeong Park, Min Ju Oh
  • Patent number: 11960158
    Abstract: A semiconductor device including a large display portion with improved portability is provided. The display device includes a first display panel, a second display panel, and an adhesive layer. The area of the second display panel is larger than the area of the first display panel. The first display panel includes a first substrate, a second substrate, and a reflective liquid crystal element and a first transistor each positioned between the first substrate and the second substrate. The second display panel includes a first resin layer having flexibility, a second resin layer having flexibility, and a light-emitting element and a second transistor each positioned between the first resin layer and the second resin layer. The liquid crystal element has a function of reflecting light toward the second substrate side. The light-emitting element has a function of emitting light toward the second resin layer side.
    Type: Grant
    Filed: April 13, 2023
    Date of Patent: April 16, 2024
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shingo Eguchi, Hideaki Kuwabara, Kazune Yokomizo
  • Patent number: 11953796
    Abstract: A device is provided. The device includes a first Pancharatnam-Berry phase (“PBP”) lens, and a second PBP lens stacked with the first PBP lens. Each of the first PBP lens and the second PBP lens includes a liquid crystal (“LC”) layer. Each side of the LC layer is provided with a continuous electrode and a plurality of patterned electrodes. The patterned electrodes in the first PBP lens are arranged non-parallel to the patterned electrodes in the second PBP lens.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: April 9, 2024
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Lu Lu, Xiayu Feng, Hsien-Hui Cheng
  • Patent number: 11947213
    Abstract: A liquid crystal display panel and a vehicle-mounted liquid crystal display device are provided. In the liquid crystal display panel, in an array substrate and/or a color filter substrate, a number of reflective interfaces in a functional area is greater than a number of reflective interfaces in a display area. Under the condition that an infrared optical transmittance is not affected, a reflectivity of light in the functional area is improved compared to the display area. This reduces or even eliminates a brightness difference between the functional area and the display area when a display is completely black.
    Type: Grant
    Filed: November 25, 2021
    Date of Patent: April 2, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Li Xu, Yang Yu, Song Li
  • Patent number: 11940639
    Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: March 26, 2024
    Assignee: Magic leap, Inc.
    Inventors: Chulwoo Oh, Ravi Kumar Komanduri, David Kleinman, Vaibhav Mathur, David Manly
  • Patent number: 11940686
    Abstract: A spatial light modulator (100) comprises a liquid crystal material (104), first and second electrodes (106, 108) disposed on opposing sides of the liquid crystal material (104), and a diffractive optical element (120) disposed between the electrodes (106, 108) and extending laterally across the modulator (100). The diffractive optical element (120) comprises an array of diffracting formations (122) formed from sub-wavelength structures. The array of diffracting formations (122) defines a phase profile adapted to modify the incident wavefront of light reflected off the second electrode and to apply a position-dependent wavefront correction to the incident wavefront of light.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: March 26, 2024
    Assignee: II-VI DELAWARE, INC.
    Inventors: Luke Stewart, Glen W Baxter, Jeremy Bolger
  • Patent number: 11934074
    Abstract: A display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer includes a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer includes a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: March 19, 2024
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Kentaro Okuyama, Tenfu Nakamura
  • Patent number: 11927840
    Abstract: An electronic device includes a display panel and a viewing angle control unit disposed opposite to the display panel. The viewing angle control unit includes a first substrate; a second substrate disposed opposite to the first substrate; a plurality of protrusions disposed between the first substrate and the second substrate; and a plurality of shielding units disposed between the first substrate and the second substrate and disposed corresponding to the plurality of protrusions. One of the shielding units forms a first projection on the first substrate, one of the protrusions forms a second projection on the first substrate, and the second projection falls within the first projection.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: March 12, 2024
    Assignee: INNOLUX CORPORATION
    Inventors: I-Kai Pan, Su-Chen Yen, Ying-Chieh Tsai