Patents by Inventor Yongqian Feng

Yongqian Feng 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: 11984085
    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-circuit, a second sub-circuit, a leakage prevention circuit and a blanking input sub-circuit, wherein the first sub-circuit comprises a first input circuit and a first output circuit; the second sub-circuit comprises a second input circuit and a second output circuit; the leakage prevention circuit is configured to control a level of a leakage prevention node under control of the level of the first node, so as to turn off a circuit connected between the first node and the leakage prevention node; and the blanking input sub-circuit is connected to the first node and the second node, and is configured to receive a selection control signal and a first clock signal, and control the level of the first node and the level of the second node.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: May 14, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li, Hao Liu
  • Patent number: 11974464
    Abstract: A driving backplane includes a base substrate, and data lines, a first gate line, a second gate line and pixel driving circuits that are disposed on the base substrate. The first gate line and the second gate line are adjacent. Each pixel driving circuit includes a first transistor including an active layer. The active layer includes an active portion, a first conductive portion and a second conductive portion. Active portions of first transistors further include first contact portions. The pixel driving circuits include a first pixel driving circuit and a second pixel driving circuit that are coupled to a data line and the first gate line. A first conductive portion in the first pixel driving circuit and a first conductive portion in the second pixel driving circuit are in contact through a first contact portion, and are coupled to the data line through the first contact portion.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: April 30, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO. LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11963397
    Abstract: A display region includes a plurality of pixel driving circuitry setting regions arranged sequentially in a first direction, and each pixel driving circuitry setting region extends in a second direction intersecting the first direction. Each display circuitry includes a plurality of subpixels in one-to-one correspondence with the pixel driving circuitry setting regions, each subpixel includes a subpixel driving circuitry and a light-emitting element coupled to each other, the subpixel driving circuitry is located in a corresponding pixel driving circuitry setting region, the light-emitting element is located at a side of the subpixel driving circuitry away from the substrate, a width of the light-emitting element is greater than a width of the corresponding pixel driving circuitry setting region in the first direction, and a length of the light-emitting element is smaller than a length of the corresponding pixel driving circuitry setting region in the second direction.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: April 16, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Meng Li, Yongqian Li, Jingquan Wang, Chen Xu, Dacheng Zhang, Zhidong Yuan, Can Yuan, Xuehuan Feng
  • Patent number: 11942041
    Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are disclosed. The shift register unit includes a blanking unit, a first transmission circuit, and a first input-output unit. The blanking unit is configured to charge a pull-up control node in response to a compensation selection control signal and input a blanking pull-up signal to a blanking pull-up node. The first transmission circuit is electrically connected to the blanking pull-up node and the first pull-up node. The first input-output unit includes an output circuit, a first pull-down control circuit, and a first pull-down auxiliary control circuit.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: March 26, 2024
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11935469
    Abstract: A pixel circuit array, a display panel, a method for driving a pixel circuit array, and a method for driving a display panel are provided. The pixel circuit array may include: a first signal sensing line (SENSE1) and a second signal sensing line (SENSE2); and N pixel circuits arranged in a column. All of the N pixel circuits are divided into a first group and a second group, each pixel circuit in the first group is coupled to the first signal sensing line (SENSE1), and each pixel circuit in the second group is coupled to the second signal sensing line (SENSE2) different from the first signal sensing line (SENSE1), where N is a positive integer greater than 1.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: March 19, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li, Pan Xu, Zhongyuan Wu
  • Patent number: 11935484
    Abstract: A display panel includes a plurality of rows of sub-pixels and at least one gate driver circuit that are disposed on a base substrate. Each sub-pixel includes a pixel driver circuit and a light-emitting device coupled to the pixel driver circuit, and a gate driver circuit includes a plurality of shift registers that are cascaded and a plurality of control signal lines. A shift register is coupled to a plurality of pixel driver circuits in at least one row of sub-pixels and at least a part of the plurality of control signal lines, and includes a plurality of first thin film transistors that are divided into a plurality of first thin film transistors. At least one thin film transistor group is located in the display region and distributed between adjacent sub-pixels in a same row of sub-pixels.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: March 19, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11929009
    Abstract: A shift register comprises a first shift register unit and a second shift register unit. The first shift register unit comprises a first input circuit connected to a first input terminal and a first pull-up node, a first output circuit connected to the first pull-up node, a first output terminal and a first clock terminal, and a first pull-down circuit. The second shift register unit comprises a second input circuit connected to a second input terminal and a second pull-up node, and a second output circuit connected to the second pull-up node, a second output terminal and a second clock signal.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: March 12, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20240071541
    Abstract: A shift register includes a first scan unit, a leakage prevention unit, and a leakage prevention input unit. The first scan unit includes a first input circuit configured to transmit an input signal to a first pull-up node. The leakage prevention input unit is configured to: transmit a first voltage signal to a leakage prevention input node; and transmit a second voltage signal to the leakage prevention input node. The first voltage signal and the second voltage signal are different. The leakage prevention unit is configured to transmit one of the first voltage signal and the second voltage signal from the leakage prevention input node to a first leakage prevention node.
    Type: Application
    Filed: November 7, 2023
    Publication date: February 29, 2024
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: D919482
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: May 18, 2021
    Assignee: SUPERSOCO INTELLIGENT TECHNOLOGY (SHANGHAI) CO., LTD
    Inventors: Jie Lin, Yongqian Feng