Patents Examined by Michael J Jansen, II
  • Patent number: 11907458
    Abstract: A sensing device includes a substrate, a first insulating layer, a second insulating layer, a sensing part, a first transmission part, a first conductive connection structure, a second transmission part, a conducting layer, a second conductive connection structure and a third transmission part. The second insulating layer is disposed between the first insulating layer and the substrate. The sensing part is disposed above the first insulating layer. The first transmission part is disposed above the first insulating layer. The first transmission part is electrically connected to the sensing part. The second transmission part is disposed below the first transmission part. The first transmission part is electrically connected to the second transmission part via the first conductive connection structure. The conducting layer is disposed between the second insulating layer and the substrate.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: February 20, 2024
    Assignee: Innolux Corporation
    Inventors: Hsiao-Lang Lin, Jui-Jen Yueh
  • Patent number: 11907459
    Abstract: According to an aspect, a touch detection device includes: drive electrodes, a drive signal being input to each of the drive electrodes; and a first drive electrode included in the drive electrodes and divided into subdivided electrodes. An arrangement pitch of the subdivided electrodes is finer than an arrangement pitch of the drive electrodes, the drive electrodes are configured to perform a touch detection in a first sensing period and in a second sensing period, and the subdivided electrodes are driven collectively in the first sensing period and driven individually in the second sensing period.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: February 20, 2024
    Assignee: Japan Display Inc.
    Inventor: Koji Noguchi
  • Patent number: 11900892
    Abstract: Methods for driving an electrophoretic medium including two pairs of oppositely charged particles. The first pair including a first type of positive particles and a first type of negative particles and the second pair consists of a second type of positive particles and a second type of negative particles, wherein the first pair of particles and the second pair of particles have different charge magnitudes (identifiable as zeta potentials). In particular, the driving methods produce cleaner optical stakes of the lesser-charged particles with less contamination from the other particles and more consistent electro-optical performance when the intermediate driving voltages are modified.
    Type: Grant
    Filed: May 17, 2023
    Date of Patent: February 13, 2024
    Assignee: E INK CORPORATION
    Inventors: Craig Lin, Feng-Shou Lin
  • Patent number: 11893938
    Abstract: Provided are a pixel circuit, a display panel and a display apparatus. The pixel circuit includes: a first resetting switching transistor, a first data writing switching transistor, a storage capacitor, a first compensation capacitor, a second compensation capacitor, and a driving transistor; the first resetting switching transistor includes a first switching sub-transistor and a second switching sub-transistor connected in series, and the first data writing switching transistor includes a third switching sub-transistor and a fourth switching sub-transistor connected in series. The first compensation capacitor and the second compensation capacitor are used to enable a voltage Vn1? of the first node to be smaller than a voltage Vn3? of the third node and larger than a voltage Vn4? of the fourth node in a light-emitting stage.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: February 6, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Wang, Can Zheng
  • Patent number: 11887524
    Abstract: A driving method of a display device includes receiving a deterioration amount for a target pixel, calculating a first compensation amount for the target pixel based on the deterioration amount for the target pixel, receiving a gaze angle of a user with respect to the target pixel, selecting one of the first compensation amount and a second compensation amount based on the gaze angle, and calculating an output grayscale for the target pixel by applying the one of the first compensation amount and the second compensation amount to an input grayscale of the target pixel, where the second compensation amount is calculated based on the gaze angle, and the first compensation amount is calculated regardless of the gaze angle.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: January 30, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Gi Na Yoo
  • Patent number: 11887531
    Abstract: A display device includes: a display panel, which displays an image; a panel driver, which drives the display panel; and a driving controller, which controls a drive of the panel driver. The driving controller includes a compensation determination block and a data compensation block. The compensation determination block is activated after a still image is displayed for a predetermined time or more and generates a compensation value based on a final afterimage component calculated using an afterimage algorithm obtained by a combination of a first afterimage calculation equation and a second afterimage calculation equation. The data compensation block receives an image signal with respect to a target image and reflects the compensation value to the image signal to generate a compensation image signal.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: January 30, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jinpil Kim, Kanghee Lee, Joon-Chul Goh
  • Patent number: 11881189
    Abstract: The present invention provides a display device and a control method thereof. The display device includes a display panel and a voltage processing module. The display panel includes a common electrode and a plurality of data lines; wherein the voltage processing module is connected to the common electrode to determine a difference between a common voltage signal in an nth frame and a standard voltage, and is connected to at least one of the common electrode and the plurality of data lines, and controls a voltage of the at least one of the common electrode and the plurality of data lines in an (n+k)th frame, wherein both n and k are positive integers.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: January 23, 2024
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yong Sun, Huangzheng Liu, Weijie Chen, Jinmei Zhou
  • Patent number: 11881152
    Abstract: A display device includes a power supply generating a first power voltage, a second power voltage, and a third power voltage. The display device further includes a first power line to which the first power voltage is applied, a second power line to which the second power voltage is applied, and a readout line to which the third power voltage is applied. The display device further includes a display panel, which includes a pixel. The pixel includes a light emitting element connected between the first power line and the second power line, and a switching transistor connected between one electrode of the light emitting element and the readout line. The power supply changes a voltage level of the third power voltage based on a total current flowing from the power supply to the display panel according to the first and second power voltages.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: January 23, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Hyun Pyun, Jang Mi Lee
  • Patent number: 11869436
    Abstract: A subpixel circuit, a display panel, and a display device are disclosed. A subpixel circuit for operating a subpixel of a display panel may include: a light emitting circuit including an light emitting element to receive a high-potential voltage, the light emitting circuit being configured to control the light emitting element according to a driving voltage and to output a control voltage; a reference circuit configured to receive the control voltage and a low-potential voltage and to control a driving current flowing through the light emitting element; an amplification circuit configured to compare the control voltage and a data voltage to generate the driving voltage for controlling the light emitting circuit; and an input circuit configured to receive the data voltage and a first scan signal and to control a timing of applying the data voltage to the amplification circuit based on the first scan signal.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: January 9, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventor: CheolSe Kim
  • Patent number: 11869415
    Abstract: A sweep signal driver includes: a kth stage to output a kth emission signal to a kth emission line, and a kth sweep signal to a kth sweep signal line, the kth stage including: first, second, and third pull-up nodes; a node connection circuit between the first pull-up node and the second pull-up node, and between the first pull-up node and the third pull-up node; a first output circuit to output a sweep clock signal of a sweep clock terminal to a first output terminal connected to the kth sweep signal line when the third pull-up node has a gate-on voltage; and a second output circuit to output a gate-on voltage to a second output terminal connected to the kth emission line when the second pull-up node has a gate-on voltage. A pulse of the kth sweep signal linearly changes from a gate-off voltage to the gate-on voltage.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Joon Kim, Jung Hwan Hwang, Kyung Hoon Chung, Jun Ki Jeong
  • Patent number: 11869420
    Abstract: Provided is a driving device for a display panel. The driving device includes a temperature sensor, a timing controller, and a source driving circuit. The temperature sensor is connected to the timing controller, and is configured to sense a target temperature and output the target temperature to the timing controller, the target temperature including an operating temperature of the display panel; and the timing controller is further connected to the source driving circuit, the source driving circuit is further connected to a pixel in the display panel, and the timing controller is configured to control, based on the target temperature, the source driving circuit to output a drive signal with a target parameter to the pixel to drive the pixel to emit light; wherein target temperatures within different temperature ranges correspond to drive signals with different target parameters.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: January 9, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Xin Mou
  • Patent number: 11862089
    Abstract: A subpixel circuit, a display panel, and a display device are disclosed. A subpixel circuit for operating a subpixel of a display panel may include: a reference circuit configured to receive a high-potential voltage and to output a control voltage for controlling a driving current flowing through a light emitting element; a light emitting circuit including the light emitting element, the light emitting circuit being configured to receive the control voltage and a low-potential voltage and to control the light emitting element based on a driving voltage; an amplification circuit configured to compare the control voltage and a data voltage to generate the driving voltage for controlling the light emitting circuit; and an input circuit configured to receive the data voltage and a first scan signal and to control a timing of applying the data voltage to the amplification circuit based on the first scan signal.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: January 2, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventor: CheolSe Kim
  • Patent number: 11854477
    Abstract: A pixel circuit includes a capacitor, a light emitting control transistors, a driving transistor, and multiple light emitting transistors. The light emitting control transistor includes a gate electrode coupled to a light emitting control signal, a source electrode coupled to a supply voltage, and a drain electrode. The driving transistor includes a gate electrode coupled to the capacitor, a source electrode coupled to the drain electrode of the light emitting control transistor, and a drain electrode. Each light emitting transistor includes a gate electrode coupled to a respective light emitting signal, a source electrode coupled to the drain electrode of the driving transistor, and a drain electrode coupled to a respective light emitting element. Each light emitting signal turns on the respective light emitting transistor during a respective light emitting period within a frame period to cause the respective light emitting element to emit a light.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: December 26, 2023
    Assignee: VIEWTRIX TECHNOLOGY CO., LTD.
    Inventors: Jing Gu, Po-Yi Shih
  • Patent number: 11847951
    Abstract: A gamma voltage generator within a display device includes a plurality of gamma generation circuits that respectively generate a plurality of gamma voltages. At least one gamma generation circuit includes an input circuit configured to receive a first reference voltage and a second reference voltage, a reference voltage select circuit configured to select a reference voltage among the first reference voltage and the second reference voltage by comparing a gamma voltage generated by the at least one gamma generation circuit with the first reference voltage and the second reference voltage, a digital-to-analog conversion circuit configured to generate an analog voltage corresponding to a gamma code based on the reference voltage selected by the reference voltage select circuit, and an output circuit configured to output the gamma voltage based on the analog voltage.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: December 19, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sanghyun Lee, Dae-Sik Lee, Keunoh Kang, Siduk Sung, Songyi Han
  • Patent number: 11847988
    Abstract: The present invention relates to a driving method for flicker suppression of a display panel and a driving circuit thereof. The driving circuit includes a source driving circuit and a common voltage generating circuit. The driving method includes driving the source driving circuit to generate at least one first source signal and at least one second source signal, the first source signal corresponds to at least one first pixel on a first scanning line; the second source signal corresponds to at least one second pixel on a second scanning line. The common voltage generating circuit generates at least one common voltage. While driving the first pixel and the second pixel to display the same gray scale image, the first source signal is not equal to the second source signal, or a first common voltage and a second common voltage generated by the common voltage generating circuit are different.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: December 19, 2023
    Assignee: Sitronix Technology Corporation
    Inventors: Hung-Yu Lu, Rong-Fong Chen
  • Patent number: 11847944
    Abstract: A system and for distributing data for 3D light field projection and a method thereof. The system comprises input terminals and output terminals that are connectable to pixel elements of a display. Data paths are established between input terminals and output terminals, and are controlled by data switches. The system also comprises a control plane adapted for applying control variables to the data switches. Control switches of the control plane select the control variables which are applied to the data switches. Sequences of control variables and enable variables propagate along at least one first delay line and along at least one second delay line, respectively. Delay units of the at least one first delay line and of the at least one second delay line have a synchronous relationship. During system run-time patterns contained in the stream of input data are detected for determining the sequences of control variables.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: December 19, 2023
    Assignee: IMEC VZW
    Inventors: Francky Catthoor, Jan Genoe, Xavier Rottenberg
  • Patent number: 11847986
    Abstract: The present disclosure discloses a backlight apparatus for a display and a current control integrated circuit thereof. The backlight apparatus includes a backlight panel including light-emitting diode (LED) channels having a matrix structure and divided into a plurality of control units, a column driver configured to provide, in a horizontal period unit, column signals corresponding to columns of the LED channels, a row driver configured to provide, in a frame unit, row signals corresponding to rows of the LED channels and to sequentially provide the row signals in the horizontal period included in the frame, and current control integrated circuits disposed in the backlight panel in a way to correspond to the control units, respectively, and each configured to receive the column signal and the row signals corresponding to LED channels of the control unit and to control emission of the LED channels of the control unit.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: December 19, 2023
    Assignee: GLOBAL TECHNOLOGIES CO., LTD.
    Inventors: Min Seon Kim, Yong Geun Kim
  • Patent number: 11847280
    Abstract: The present invention provides a touch panel and the touch detection circuit thereof, which comprise a gate driving circuit, a source driving circuit, and a detection circuit. The gate driving circuit is coupled to a plurality of gate lines of a display panel, outputs a plurality of gate signals to the plurality of gate lines, and controls state transition of the plurality of gate signals. The source driving circuit is coupled to a plurality of source lines of the display panel. The detection circuit is coupled to the plurality of source lines or to a portion of the plurality of source lines. The detection circuit detects the levels of the plurality of signals on the coupled source lines when the gate signals change states and generates a plurality of detection signals.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: December 19, 2023
    Assignee: Sitronix Technology Corp
    Inventor: Min-Nan Liao
  • Patent number: 11847975
    Abstract: A display device includes a display panel configured to display an image, a gate driver connected to gate lines of the display panel, and a data driver connected to data lines of the display panel, and the data driver provides duplicates of red, green and blue data signals, except for a white data signal, in a digital data signal having a 4:2:0 format externally input thereto, and converts the white data signal, the red, green and blue data signals, and the duplicated red, green and blue data signals, thereby outputting an analog data voltage having a 4:4:4 format.
    Type: Grant
    Filed: October 29, 2022
    Date of Patent: December 19, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyung Rok Kim, Min Kim, Hyuck Jun Kim
  • Patent number: 11836873
    Abstract: There is provided a computer implemented method comprising: displaying, via a display of an augmented reality, AR, device, a view of image data obtained by a camera of the AR device; tracking a position of a target object within the displayed view; determining a visibility of the tracked target object and/or a virtual object to be superimposed on the tracked target object on the display, wherein the position of the virtual object is dependent on the position of the target object; and generating a trigger signal depending on the visibility.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: December 5, 2023
    Assignee: RE'FLEKT GmbH
    Inventor: Jan Heitger