Patents by Inventor Zehua DING

Zehua DING has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11437440
    Abstract: An array substrate includes an array of a plurality of subpixels including a plurality of columns of subpixels respectively spaced apart by a plurality of inter-subpixel regions; a plurality of pixel driving circuits respectively driving light emission of the plurality of subpixels; and a plurality of detection and compensation lead lines respectively configured to respectively detect signals in the plurality of subpixels and respectively compensate signals in the plurality of subpixels. A respective one of a plurality of detection and compensation lead lines is disposed in a first inter-subpixel region between two directly adjacent columns of subpixels. The respective one of the plurality of detection and compensation lead lines is spaced apart by at least one columns of subpixels from a signal line configured to transmit an alternating current and arranged along a direction parallel to the respective one of the plurality of detection and compensation lead lines.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: September 6, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Can Yuan, Yongqian Li, Pan Xu, Zhidong Yuan, Meng Li, Xuehuan Feng, Zehua Ding
  • Patent number: 11238805
    Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are disclosed. The shift register unit includes a first sub-unit and a leakage prevention circuit; the first sub-unit includes a first input circuit and a first output circuit. The first input circuit controls a level of a first node in response to a first input signal, the first output circuit provides an output signal at an output terminal under control of the level of the first node, the leakage prevention circuit is connected to the first node and a first voltage terminal, and controls a level of a leakage prevention node under control of the level of the first node, whereby a conductive path is formed between the leakage prevention node and the first voltage terminal, and a circuit connected between the first node and the leakage prevention node is turned off.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: February 1, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li, Can Yuan, Meng Li, Zehua Ding, Zhidong Yuan
  • Publication number: 20210408160
    Abstract: An array substrate includes an array of a plurality of subpixels including a plurality of columns of subpixels respectively spaced apart by a plurality of inter-subpixel regions; a plurality of pixel driving circuits respectively driving light emission of the plurality of subpixels; and a plurality of detection and compensation lead lines respectively configured to respectively detect signals in the plurality of subpixels and respectively compensate signals in the plurality of subpixels. A respective one of a plurality of detection and compensation lead lines is disposed in a first inter-subpixel region between two directly adjacent columns of subpixels. The respective one of the plurality of detection and compensation lead lines is spaced apart by at least one columns of subpixels from a signal line configured to transmit an alternating current and arranged along a direction parallel to the respective one of the plurality of detection and compensation lead lines.
    Type: Application
    Filed: September 27, 2019
    Publication date: December 30, 2021
    Applicants: Hefei BOE Joint Technology Co.,Ltd., BOE Technology Group Co., Ltd.
    Inventors: Can Yuan, Yongqian Li, Pan Xu, Zhidong Yuan, Meng Li, Xuehuan Feng, Zehua Ding
  • Patent number: 11094253
    Abstract: A pixel driving circuit, array substrate, display device and method for driving the pixel driving circuit are provided, the circuit includes: a control terminal and a first terminal of a driving switch circuit are respectively coupled to a first terminal of a data input switch circuit and an anode of a light-emitting device, and two terminals of a storage capacitor are respectively coupled to the control terminal of the driving switch circuit and the anode of the light-emitting device, two terminals of an intrinsic capacitor are respectively coupled to a cathode and the anode of the light-emitting device, a first terminal and a second terminal of a reset switch circuit are respectively coupled to the anode and the cathode of the light-emitting device, a capacitance of the intrinsic capacitor is greater than or equal to a preset multiple of a capacitance of the storage capacitor.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: August 17, 2021
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Taejin Kim, Yongqian Li, Lin Sun, Chao Jiao, Can Yuan, Zehua Ding, Xuehuan Feng, Meng Li
  • Publication number: 20210201807
    Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are disclosed. The shift register unit includes a first sub-unit and a leakage prevention circuit; the first sub-unit includes a first input circuit and a first output circuit. The first input circuit controls a level of a first node in response to a first input signal, the first output circuit provides an output signal at an output terminal under control of the level of the first node, the leakage prevention circuit is connected to the first node and a first voltage terminal, and controls a level of a leakage prevention node under control of the level of the first node, whereby a conductive path is formed between the leakage prevention node and the first voltage terminal, and a circuit connected between the first node and the leakage prevention node is turned off.
    Type: Application
    Filed: November 4, 2019
    Publication date: July 1, 2021
    Inventors: Xuehuan FENG, Yongqian LI, Can YUAN, Meng LI, Zehua DING, Zhidong YUAN
  • Publication number: 20210074210
    Abstract: A pixel driving circuit, array substrate, display device and method for driving the pixel driving circuit are provided, the circuit includes: a control terminal and a first terminal of a driving switch circuit are respectively coupled to a first terminal of a data input switch circuit and an anode of a light-emitting device, and two terminals of a storage capacitor are respectively coupled to the control terminal of the driving switch circuit and the anode of the light-emitting device, two terminals of an intrinsic capacitor are respectively coupled to a cathode and the anode of the light-emitting device, a first terminal and a second terminal of a reset switch circuit are respectively coupled to the anode and the cathode of the light-emitting device, a capacitance of the intrinsic capacitor is greater than or equal to a preset multiple of a capacitance of the storage capacitor.
    Type: Application
    Filed: April 3, 2020
    Publication date: March 11, 2021
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong YUAN, Taejin KIM, Yongqian LI, Lin SUN, Chao JIAO, Can YUAN, Zehua DING, Xuehuan FENG, Meng LI