Patents Examined by Alexander P Gross
  • Patent number: 11719987
    Abstract: A transistor substrate is provided. The transistor substrate includes a plurality of data lines and a plurality of scan lines. The scan lines intersect with the data lines to define a plurality of pixel units. One of the pixel units includes a first electrode, a second electrode and a switching transistor. The first electrode has a slit including a major axis portion and a curved portion connected to the major axis portion. One of the first electrode and the second electrode is used for receiving a pixel voltage signal, and the other is used for receiving a common voltage signal. The switching transistor includes a switching electrode. The switching electrode and the curved portion of the slit have an overlapping region, and an area of the overlapping region is 0.2 times to 0.8 times an area of the curved portion.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: August 8, 2023
    Assignee: INNOLUX CORPORATION
    Inventors: Yung-Shun Yang, Chun-Liang Lin, Yi-Ching Chen, Nai-Fang Hsu
  • Patent number: 11714302
    Abstract: An object is to provide an optical element in which a wavelength dependence of refraction of transmitted light is small, and a light guide element including the optical element.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: August 1, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Sato, Yukito Saitoh
  • Patent number: 11709404
    Abstract: A display device includes a base layer, a first pixel transistor, a first gate line, a first data line electrically connected to the first pixel transistor, a first pixel electrode electrically connected to the first pixel transistor and overlapping the first data line in a plan view, and a porous layer. The porous layer is disposed between the first data line and the first pixel electrode and includes a matrix including a polymer resin and a plurality of void portions defined in the matrix. The display device is capable of displaying a sharp image because the porous layer alleviates or prevents a crosstalk between the first data line and the first pixel electrode.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: July 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyelim Jang, Young Gu Kim, Jiyun Park, Jongho Son, Jongmin Ok, Sun-Young Chang, Baekkyun Jeon, Kyungseon Tak
  • Patent number: 11703721
    Abstract: Liquid crystal light beam control devices and their manufacture are described. Beneficial aspects of beam broadening devices employed for controlled illumination and architectural purposes are presented including improving beam divergence control, improving beam broadening dynamic range control, beam divergence preconditioning, improving projected beam intensity uniformity.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: July 18, 2023
    Inventors: Vladimir Presniakov, Karen Asatryan, Armen Zohrabyan, Tigran Galstian, Aram Bagramyan, Simon Careau
  • Patent number: 11698557
    Abstract: Disclosed are dimming assemblies and display systems for reducing artifacts produced by optically-transmissive displays. A system may include a substrate upon which a plurality of electronic components are disposed. The electronic components may include a plurality of pixels, a plurality of conductors, and a plurality of circuit modules. The plurality of pixels may be arranged in a two-dimensional array, with each pixel having a two-dimensional geometry corresponding to a shape with at least one curved side. The plurality of conductors may be arranged adjacent to the plurality of pixels. The system may also include control circuitry electrically coupled to the plurality of conductors. The control circuitry may be configured to apply electrical signals to the plurality of circuit modules by way of the plurality of conductors.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: July 11, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Andrew Ian Russell, Jahja I. Trisnadi, Vaibhav Mathur, David Manly, Michael Robert Johnson, Clinton Carlisle
  • Patent number: 11693287
    Abstract: A chip on film for a display device, the chip on film includes: a base substrate; a lead wire disposed on the base substrate; and a driving chip connected to the lead wire, wherein the lead wire includes: a first lead part having a first thickness; and a second lead part disposed between the first lead part and the driving chip and having a second thickness greater than the first thickness, the second lead part being connected to the driving chip. The first lead part and the second lead part include a same material.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: July 4, 2023
    Assignee: Samsung Display Co., LTD.
    Inventors: Myong Soo Oh, Jun O Song, Seung Ho Choi
  • Patent number: 11668963
    Abstract: A switchable privacy display comprises a spatial light modulator (SLM), a first switchable liquid crystal (LC) retarder and first passive retarder between a first pair of polarisers and a second switchable LC retarder and second passive retarder between a second pair of polarisers. The first switchable LC retarder comprises two homeotropic alignment layers and the second switchable LC retarder comprises two homogeneous alignment layers. In privacy mode, on-axis light from the SLM is directed without loss, whereas off-axis light has reduced luminance to reduce visibility to off-axis snoopers. The display may achieve privacy operation in landscape and portrait orientations. Further, display reflectivity may be reduced for on-axis reflections of ambient light, while reflectivity may be increased for off-axis light to achieve increased visual security. In public mode, the LC retardance is adjusted so that off-axis luminance and reflectivity are unmodified.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: June 6, 2023
    Assignee: RealD Spark, LLC
    Inventors: Graham J. Woodgate, Michael G Robinson, Robert A Ramsey
  • Patent number: 11668993
    Abstract: A display apparatus can include a display panel; a first light path control layer including a plurality of lower slits, a first electrophoresis liquid having first light blocking particles injected into the plurality of lower slits, and a lower driving electrode pattern disposed to intersect a longitudinal direction of the plurality of lower slits; and a second light path control layer disposed on the first light path control layer, the second light path control layer including a plurality of upper slits, a second electrophoresis liquid having second light blocking particles injected into the plurality of upper slits, and an upper driving electrode pattern disposed to intersect a longitudinal direction of the plurality of upper slits.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: June 6, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sanghyun Lee, Minsoo Park
  • Patent number: 11656515
    Abstract: A liquid crystal on silicon (LCOS) device includes a silicon substrate and a pair of electrodes including an upper and a lower electrode. The lower electrode is mounted to the silicon substrate and includes a two dimensional array of pixels extending in both a first and second dimension. LCOS device also includes a liquid crystal layer disposed between the upper and lower electrodes and configured to be driveable into a plurality of electrical states by drive signals provided to the pixels of the lower electrode. The pixels are rectangular in profile having longer sides in the first dimension than in the second dimension. Further, the two dimensional array includes a pixel pitch that is greater in the first dimension than in the second dimension.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: May 23, 2023
    Assignee: II-VI DELAWARE, INC
    Inventors: Julian Armstrong, Luke Stewart, Glenn Wayne Baxter, Jonathan Plumridge
  • Patent number: 11656492
    Abstract: An electronic device includes: a first substrate; a second substrate opposite to the first substrate; a black matrix layer disposed between the first and second substrates and including a first pixel region and a first shielding region disposed along a first direction, wherein the first pixel region includes a first sub-pixel opening; a scan line disposed between the first and second substrates and extending along a second direction different from the first direction, wherein the first shielding region overlaps the scan line; and a first color resist and a second color resist disposed in the fielding region, having different colors and overlapping each other to form an overlapping region, wherein a width of the overlapping region at the second direction is greater than or equal to 0 and less than 50% of a width of the first sub-pixel opening at the second direction.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: May 23, 2023
    Assignee: INNOLUX CORPORATION
    Inventors: Wei-Chih Chen, Chih-Ming Liang
  • Patent number: 11644727
    Abstract: A display panel, a manufacturing method of the display panel, and a display device are disclosed. The display panel includes a first substrate and a second substrate. The first substrate includes a first base, a light-shielding layer disposed on the first base, and a color filter layer disposed on the first base, and a common electrode layer disposed on the light-shielding layer and the color filter layer. The common electrode layer is provided with an opening at a position opposite to the color filter layer.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: May 9, 2023
    Assignees: Beihai HKC Optoelectronics Technology Co., Ltd., HKC CORPORATION LIMITED
    Inventors: Yang Pu, WenChin Hung, Wei Li
  • Patent number: 11640083
    Abstract: An improvement in contrast is achieved by suitably offsetting a phase difference produced by oblique light in a liquid-crystal panel. An optical compensation apparatus includes a negative C-plate and two O-plates, an amount of a composite phase difference between the two O-plates and the negative C-plate in a tilt-direction cross section is substantially same as an amount of a phase difference produced by light having each of incident angles in a predetermined incident-angle range in the liquid-crystal panel, and a sign of the composite phase difference is opposite to a sign of the phase difference, the tilt-direction cross section being a cross section parallel to a tilt direction of the liquid crystal in a vertical-alignment-type liquid-crystal panel.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: May 2, 2023
    Assignee: SONY CORPORATION
    Inventors: Ryoko Horikoshi, Keigo Inoue
  • Patent number: 11635655
    Abstract: A display device is provided, including two substrates and a liquid crystal layer. Each of the substrates has two opposite surfaces and two opposite sides. The liquid crystal layer is sandwiched between the two substrates. At least one of the two substrates has an inclined portion on at least one of the two opposite sides which is connected to one of the two opposite surfaces, and has an included angle greater than 90 degrees and less than 180 degrees in association with the connected surface.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: April 25, 2023
    Assignee: Innolux Corporation
    Inventors: Luca Hung, Joe Huang
  • Patent number: 11630359
    Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a common electrode. The common electrode includes an electrode unit array. The electrode unit array includes a plurality of electrode units. Each of the electrode units corresponds to two adjacent sub-pixels. Each of the electrode units includes a boundary electrode line and an inner region defined by the boundary electrode line. The inner region includes a first region and a second region. The first region includes a plurality of first strip electrode lines having a same longitudinal direction. Two adjacent first strip electrode lines are not connected inside the first region. The second region includes a plurality of second strip electrode lines having a same longitudinal direction. Two adjacent second strip electrode lines are not connected inside the second region.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: April 18, 2023
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ruifang Du, Fengzhen Lyu, Hui Li, Xiaoye Ma
  • Patent number: 11630362
    Abstract: A one-way glass with switching modes includes an absorbing layer located on a weak light side, a reflecting layer located on an intense light side, and a converting layer stacked between the absorbing layer and the reflecting layer. The absorbing layer absorbs first polarized light and allows second polarized light to pass through. The reflecting layer reflects the first polarized light and allows the second polarized light to pass through. Unpolarized light incident from the weak light side or from the intense light side is respectively converted into the polarized light. During the process of gradually adjusting the converting layer from a twisted state to a vertical state, rotated angles of polarization directions of the first polarized light and the second polarized light gradually decrease.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: April 18, 2023
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Tsung-Hsien Lin, Chun-Ta Wang, Heng-Yi Tseng, Cheng-Chang Li, Li-Min Chang, Kuan-Wu Lin, Hung-Chang Jau
  • Patent number: 11624944
    Abstract: A switchable backlight for a switchable privacy display apparatus comprises a collimated waveguide and an optical turning film comprising first and second arrays of elongate prismatic elements. High image luminance and image visibility is provided for off-axis viewers in a public mode of operation while in a privacy mode of operation visual security level above a perceived privacy threshold may be achieved for off-axis snoopers.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: April 11, 2023
    Assignee: RealD Spark, LLC
    Inventors: Michael G Robinson, Graham J Woodgate, Jonathan Harrold
  • Patent number: 11609460
    Abstract: A flat panel display having an improved picture quality is disclosed. In one embodiment, a first pixel electrode and a second pixel electrode are formed in each subpixel area. The electrodes enclose an open space (gap) such that their outer boundary has a substantially rectangular shape. The flat panel display may also include a capacitance electrode coupled to the second pixel electrode to form a coupling capacitor. In use, the coupling capacitor operates such that a magnitude of a voltage applied to the first pixel electrode is lower than an applied data voltage, and a magnitude of a voltage applied to the second pixel electrode is higher than an applied voltage. The different voltages operate such that a tilt direction of LC molecules disposed above the first pixel electrode differs from a tilt direction of LC molecules disposed above the second pixel electrode.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: March 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jang-Kun Song
  • Patent number: 11600672
    Abstract: A display device includes a viewing angle control layer including a liquid crystal layer disposed on a second electrode of an organic light-emitting element and the control electrode disposed on the liquid crystal layer, the control electrode includes a plate electrode and a plurality of tip electrodes protruding from the plate electrode toward the second electrode, wherein the plurality of tip electrodes are arranged within a light-emitting area of the organic light-emitting element, and the liquid crystal layer includes positive c-plate liquid crystal molecules aligned vertically.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: March 7, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Hyunseung Kim
  • Patent number: 11600101
    Abstract: Provided is a liquid-crystal display device including a display panel, a backlight module, and a fingerprint identification module. The display panel includes a display region. The display region includes a first display region and a second display region. The second display region also serves as a light sensing element region. The backlight module is configured to provide a backlight for the display panel and is provided with a via penetrating through the backlight module. The fingerprint identification module is disposed inside the via and includes a fingerprint identification sensor, a light plate, and a quantum dot film. The light plate is disposed between the fingerprint identification sensor and the quantum dot film. The quantum dot film is disposed between the light plate and the display panel. The quantum dot film includes at least one quantum dot set. The at least one quantum dot set includes infrared quantum dots.
    Type: Grant
    Filed: September 26, 2021
    Date of Patent: March 7, 2023
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Tianzhu Shi, Zhiqi Chen, Chao Dai
  • Patent number: 11573456
    Abstract: This application relates to a liquid crystal display which comprises: an upper polarizer; a lower polarizer; and a liquid crystal panel provided between the upper polarizer and the lower polarizer, in which the upper polarizer and the lower polarizer are provided so that absorption axes of the upper and lower polarizers are parallel to each other, a first half wave plate, a positive C plate, and a second half wave plate are sequentially comprised between the upper polarizer and the liquid crystal panel, and the liquid crystal panel is a vertical alignment liquid crystal mode.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: February 7, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Nayoung Shin, Junwon Chang, Moon Soo Park, Kyun Il Rah