Patents Examined by Mark W Regn
  • Patent number: 11747683
    Abstract: A display device includes a first substrate, a second substrate, a display functional layer, first electrodes, pixel electrodes, second electrodes, a drive circuit, and a conductive body. The second substrate faces the first substrate. The display functional layer is provided between the first substrate and the second substrate. The first electrodes are provided between the first substrate and the second substrate. The pixel electrodes face the first electrodes between the first substrate and the second substrate. The second electrodes overlap the first electrodes through the display functional layer. The drive circuit supplies drive signals to a pair of the first electrode, wherein the drive circuit supplies a first electric potential to one of the pair of first electrodes and supplies a drive signal having a second electric potential different from the first electric potential to the other of the pair of first electrodes simultaneously.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: September 5, 2023
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Hiroshi Mizuhashi
  • Patent number: 11741866
    Abstract: A display device includes a display panel, a main circuit board including a plurality of board pads arranged along a first direction, a connection circuit board electrically connected to the display panel and the main circuit board, and a driving chip disposed on the connection circuit board. The connection circuit board includes a plurality of board connection pads respectively connected to a plurality of board pads, a plurality of lines connecting the driving chip to the plurality of board connection pads to each other, and a test pattern disposed spaced part from the driving chip, where a first line and a second line among the lines are electrically connected to the test pattern, and a same voltage is applied to the first line and the second line.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wontae Kim, Myeongsu Kim, Boyeon Kim, Jae-Han Lee, Whee-Won Lee
  • Patent number: 11721296
    Abstract: There are provided methods for driving an electro-optic display A method for driving an electro-optic display having a plurality of display pixels, the method comprises receiving an input image, processing the input image to create color separation cumulate, and using a threshold array to process the color separation cumulate to generate colors for the electro-optic display.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: August 8, 2023
    Assignee: E Ink Corporation
    Inventor: Kenneth R. Crounse
  • Patent number: 11690262
    Abstract: A display apparatus includes: a display area; a peripheral area on an outer portion of the display area; a substrate; a thin film transistor on the substrate and comprising a semiconductor layer and a gate electrode overlapping at least a portion of the semiconductor layer; a plurality of data lines in the display area and extending in a first direction; a plurality of input lines in the peripheral area; a plurality of connecting lines in the display area that electrically connect the plurality of data lines to the plurality of input lines; a power voltage line on the substrate and extending in the first direction; and an initialization voltage line on the substrate and extending in a second direction intersecting the first direction, wherein a part of each of the plurality of connecting lines overlaps at least one of the power voltage line or the initialization voltage line.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: June 27, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beomsoo Park, Seungchan Lee, Wangjo Lee, Jaebum Cho
  • Patent number: 11657743
    Abstract: A display driver includes a segment display portion drive circuit, a dot matrix display portion drive circuit, a segment data storage portion, a dot matrix data storage portion, and a control circuit, in which the dot matrix data storage portion stores data for second icon display, which is data for displaying a second icon that is a substitute for the first icon on the dot matrix display portion, and when the control circuit detects a display abnormality of the first icon, the control circuit transfers the data for second icon display from the dot matrix data storage portion to the dot matrix display portion drive circuit.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: May 23, 2023
    Inventor: Kazuaki Tanaka
  • Patent number: 11636788
    Abstract: A display device inspection method includes: checking connection failures of light emitting elements included in a pixel and connected in series based on a first control signal, a second control signal, and a voltage of an initialization power source, wherein the pixel comprises: a pixel circuit controlling a current flowing from a first power source to a second node in response to a voltage of a first node; a first light emitting element connected to the second node; a first transistor controlling the voltage of the initialization power source supplied to the second node; a second light emitting element electrically connected between the first light emitting element and a second power source; and a second transistor having a first electrode connected to a third node between the first light emitting element and the second light emitting element, and a gate electrode connected to a first inspection control line.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Nyeng Kang, Min Joo Kim, Tae Hoon Yang, Sang Hoon Lee, Seon Beom Ji
  • Patent number: 11614626
    Abstract: An augmented reality display system includes a pair of variable focus lens elements that sandwich a waveguide stack. One of the lens elements is positioned between the waveguide stack and a user's eye to correct for refractive errors in the focusing of light projected from the waveguide stack to that eye. The lens elements may also be configured to provide appropriate optical power to place displayed virtual content on a desired depth plane. The other lens element is between the ambient environment and the waveguide stack, and is configured to provide optical power to compensate for aberrations in the transmission of ambient light through the waveguide stack and the lens element closest to the eye. In addition, an eye-tracking system monitors the vergence of the user's eyes and automatically and continuously adjusts the optical powers of the pair of lens elements based on the determined vergence of those eyes.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: March 28, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Samuel A. Miller, Paul M. Greco, Brian T. Schowengerdt
  • Patent number: 11610521
    Abstract: The present disclosure relates to a technology for driving an LED, comprising sensing a forward-direction voltage of an LED and determining whether or not the LED is defective by comparing the forward-direction voltage with a comparative object voltage, wherein the comparative object voltage is continuously updated using a sensed forward-direction voltage so that the comparative object voltage may be set to be an unfixed value, that is, a value reflecting a current state of an LED. This allows a more accurate detection of a defect of an LED.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: March 21, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Ji Hwan Kim, Jong Min Lee
  • Patent number: 11586257
    Abstract: A mother substrate and a display panel including the mother substrate are disclosed. The mother substrate includes: an input pad located on an edge of the mother substrate; and a sub-substrate. A switch array and one or more signal lines connected to the switch array are arranged in a display area of the sub-substrate. One end of the signal line lead out a first test portion, and another end of the signal line is connected to the input pad and lead out a second test portion. The first test portion and the second test portion are located on different conductive layers and are insulated from each other. Partial orthographic overlapping of the first test portion is overlapped with partial orthographic overlapping of the second test portion in the non-display area.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: February 21, 2023
    Assignees: Beihai HKC Optoelectronics Technology Co., Ltd., HKC Corporation Limited
    Inventors: Cheng-Hung Chen, Haijiang Yuan
  • Patent number: 11587479
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes a border region, an optical component region, and a main display region. The border region is provided with multiple load compensation units. At least one first data line is electrically connected to M load compensation units, so as to compensate for a load of the first data line, making the compensated load on the first data line and a load on the second data line are basically the same or tend to be the same. In this way, any display difference across different regions of the display panel due to a difference of the load on the first data line and the load on the second data line may be avoided, which in turn improves the display uniformity of the display panel and improves the display effect of the display panel.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: February 21, 2023
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Peng Zhang
  • Patent number: 11587480
    Abstract: A display screen lighter and a display screen detection device are provided.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: February 21, 2023
    Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jianping Zhang, Jing Zhang, Zhiqiang Wang
  • Patent number: 11579709
    Abstract: Provided are embodiments of control devices capable of simultaneously measuring six degrees of freedom and electronic systems comprising the control devices. In some embodiments, the control devices are useful for controlling and/or directing movement of vehicles and virtual entities through operation of the control device with a computer processor, computer interface and, optionally a display.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: February 14, 2023
    Assignee: SUBLIGHT DYNAMICS INC.
    Inventors: Daniel Harrison Stack, Benjamin Allen Stack
  • Patent number: 11574167
    Abstract: An exemplary embodiment of a circuit for determining information about the position, attitude, or orientation of a magnet comprises an input interface configured to receive components of a magnetic field produced by the magnet. An evaluation logic unit corresponds to at least one trained neural network and is configured to determine the information about the position, attitude, or orientation of the magnet on the basis of the received components.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: February 7, 2023
    Assignee: Infineon Technologies AG
    Inventors: Richard Heinz, Andrea Hollenbach, Stephan Leisenheimer
  • Patent number: 11574567
    Abstract: A display panel includes a plurality of sub-pixels and a plurality of data lines, and a detection circuit. The data lines include at least one first data line. The detection circuit includes a first detection signal line, a detection control signal line, and at least one first switch. The first detection signal line and the detection control signal line detour along an edge of the active area. The first detection signal line is configured to transmit a detection signal, and the detection control signal line is configured to transmit a detection control signal. The first switch is electrically connected to the first detection signal line, the detection control signal line, and the at least one first data line, and is configured to close a line between the first detection signal line and the first data line, in response to the detection control signal.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: February 7, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yu Wang, Yi Zhang, Tingliang Liu, Shun Zhang, Tinghua Shang, Huijuan Yang, Pengfei Yu, Yang Zhou, Linhong Han, Xiaofeng Jiang, Hao Zhang, Huijun Li
  • Patent number: 11568786
    Abstract: There are provided methods for driving an electro-optic display having a plurality of display pixels, a such method includes detecting a white-to-white graytone transition on a first pixel; and determining whether a threshold number of cardinal neighbors of the first pixel are not making a graytone transition from white to white, or if the first pixel is a color pixel, and apply a first waveform.
    Type: Grant
    Filed: May 30, 2021
    Date of Patent: January 31, 2023
    Assignee: E Ink Corporation
    Inventor: Kenneth R. Crounse
  • Patent number: 11561657
    Abstract: A touch panel and a manufacturing method thereof and a touch display device are disclosed. The touch panel includes: a base substrate; and a first touch electrode on the base substrate, the first touch electrode including a plurality of first touch electrode lines intersecting with one another, wherein in a direction perpendicular to the base substrate, each of the first touch electrode lines include at least two laminated transparent conductive layers, which include a laminate of a first metal oxide layer and a first metal layer, or a laminate of the first metal oxide layer and a first graphene layer.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: January 24, 2023
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Taofeng Xie, Xiaoyue He
  • Patent number: 11527206
    Abstract: A display device includes: a display unit including a first display area, and a second display area; a scan driver configured to provide a scan signal to each scan line connected to the plurality of first pixels and the plurality of second pixels; and an emission controller configured to provide an emission control signal to each emission control line connected to the plurality of first pixels and the plurality of second pixels, wherein the plurality of first pixels have a first density in the first display area, the plurality of second pixels have a second density less than the first density in the second display area, and the plurality of second pixels include at least one sub pixel including one boosting capacitor.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: December 13, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Hwan Kim, Won Kyu Kwak, Jung Hoon Shim, Yun Kyeong In
  • Patent number: 11520202
    Abstract: There are provided methods for driving an electro-optic display having a plurality of display pixels, a such method includes applying a first waveform chosen from a first set of waveforms for black-to-white and white-to-white transitions if a pixel is determined to display color, and applying a second waveform chosen from a second set of waveforms for black-to-white and white-to-white transitions if a pixel is determined to display a grayscale image.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: December 6, 2022
    Assignee: E Ink Corporation
    Inventors: Sarah Paydavosi, Yuval Ben-Dov
  • Patent number: 11514829
    Abstract: A display device includes a display panel, a display controller configured to output a video data signal, a gate driver, and a plurality of source drivers which are arranged in an extension direction of gate lines and generate a gradation voltage signal to be supplied to each of a plurality of pixel units based on the video data signal supplied from the display controller. Each of the plurality of source drivers includes a data processing unit configured to share an abnormal state sharing signal indicating whether an abnormality has occurred in communication with the display controller with other source drivers, and when the abnormal state sharing signal indicates that an abnormality has occurred in communication with the display controller, supply a gradation voltage signal corresponding to predetermined gradation data different from a gradation voltage signal based on the video data signal to each of the plurality of pixel units.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: November 29, 2022
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventor: Hiroaki Ishii
  • Patent number: 11516630
    Abstract: Techniques for adjusting operation of an electronic device are described. In an example, while the electronic device is operating in a first operating mode according to a first parameter, a set of signals indicating an object in a room, and based on received reflected radar signals, are transmitted by a radar transceiver of the electronic device to one or more processors of the electronic device. By analyzing the set of signals to identify the object as a person, the one or more processors determine that the room is occupied. In accordance with determining that the room is occupied by the person, the electronic device is adjusted to operate in a second operating mode according to a second parameter suitable for sensing objects at a closer distance than the first parameter.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: November 29, 2022
    Assignee: Google LLC
    Inventors: Brian Silverstein, Eden Sherry