Patents by Inventor Yongqian Li

Yongqian Li 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: 11393402
    Abstract: An OR logic operation circuit and a driving method, a shift register unit, a gate drive circuit, and a display device are provided. The OR logic operation circuit includes: a first inverter, a second inverter, a first control circuit, and a second control circuit. The first inverter is configured to invert a first control signal, which is received, to output a second control signal; the second inverter is configured to invert a third control signal received to output a fourth control signal; the first control circuit is configured to perform first control on a first node and the output terminal to achieve an OR operation and output a first level of an output signal at the output terminal; and the second control circuit is configured to perform second control on the first node and the output terminal to output a second level of the output signal at the output terminal.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: July 19, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan, Meng Li
  • Publication number: 20220223096
    Abstract: A shift register circuit includes:an input sub-circuit connected to a first node, and configured to receive a first control signal, and cause a potential of the first node to jump from an initial potential to a first potential greater than the initial potential; an output sub-circuit connected to the first node, and configured to receive a first clock signal, generate an output signal, cause the potential of the first node to jump from the first potential to a third potential greater than the first potential; and a chamfering sub-circuit connected to the first node, and configured to receive a second control signal, cause the potential of the first node to gradually decrease from the third potential to a fourth potential greater than the initial potential and less than the third potential, and cause the potential of the first node to jump from the fourth potential to the initial potential.
    Type: Application
    Filed: September 28, 2020
    Publication date: July 14, 2022
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20220208948
    Abstract: A display substrate has a display area including a plurality of sub-display areas. The display substrate includes a base, a plurality of columns of pixels, a plurality of first and second power lines disposed on the base. At least two columns of pixels are disposed in each sub-display area, and each column of pixels includes at least three columns of sub-pixels. At least one first power line is disposed in each sub-display area and configured to provide a first power signal to all sub-pixels in a sub-display area. The second power lines are configured to provide second power signals to all sub-pixels. A plurality of columns of sub-pixels are disposed between any two adjacent power lines, to and any first and second power lines are each arranged between two adjacent columns of sub-pixels emitting light of a first color and sub-pixels emitting light of a second color.
    Type: Application
    Filed: November 17, 2020
    Publication date: June 30, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pan XU, Yongqian LI, Dacheng ZHANG, Lang LIU
  • Patent number: 11373577
    Abstract: The present application discloses a shift-register unit. The shift-register unit includes a first sub-unit including a first input circuit coupled via a first node to a first output circuit. The first input circuit is configured to control a voltage level of the first node in response to a first input signal and the first output circuit is configured to output a shift-register signal and a first output signal in response to the voltage level of the first node. Additionally, the shift-register unit includes a second sub-unit including a second input circuit coupled via a second node to a second output circuit. The second input circuit is configured to control a voltage level of the second node in response to the first input signal and the second output circuit is configured to output a second output signal in response to the voltage level of the second node.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: June 28, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li, Xing Zhang
  • Publication number: 20220189406
    Abstract: The present disclosure provides a shift register unit, a gate driving circuitry and a method for driving the gate driving circuitry. The shift register unit includes an input circuitry, a first latch circuitry, a second latch circuitry and an output end. The input circuitry is configured to output an input control signal to the first latch circuitry in accordance with a first level signal, a second level signal and a first ON signal. The first latch circuitry is configured to output an output signal as a gate driving signal via the output end in accordance with a first clock signal and the input control signal, and latch the output signal. The second latch circuitry is configured to output a second ON signal in accordance with a second clock signal and the output signal, and latch the second ON signal.
    Type: Application
    Filed: June 20, 2021
    Publication date: June 16, 2022
    Inventors: Xuehuan FENG, Yongqian LI, Pan XU
  • Patent number: 11361696
    Abstract: A shift register includes an output sub-circuit, a cascade sub-circuit and at least one additional output sub-circuit. The output sub-circuit is configured to transmit a first clock signal received at the first clock signal terminal to the output signal terminal under control of a potential at the pull-up node, so as to scan a gate line coupled to the output signal terminal. The cascade sub-circuit is configured to transmit a second clock signal received at the second clock signal terminal to the cascade node under the control of the potential at the pull-up node. Each additional output sub-circuit is configured to transmit a clock signal received at a corresponding clock signal terminal to a corresponding additional output signal terminal under control of a potential at the cascade node, so as to scan a gate line coupled to the corresponding additional output signal terminal.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: June 14, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11361715
    Abstract: The present disclosure provides a shift register unit, a gate driving circuitry and a method for driving the gate driving circuitry. The shift register unit includes an input circuitry, a first latch circuitry, a second latch circuitry and an output end. The input circuitry is configured to output an input control signal to the first latch circuitry in accordance with a first level signal, a second level signal and a first ON signal. The first latch circuitry is configured to output an output signal as a gate driving signal via the output end in accordance with a first clock signal and the input control signal, and latch the output signal. The second latch circuitry is configured to output a second ON signal in accordance with a second clock signal and the output signal, and latch the second ON signal.
    Type: Grant
    Filed: June 20, 2021
    Date of Patent: June 14, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li, Pan Xu
  • Patent number: 11361693
    Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are provided. The shift register unit includes a first input circuit, an output control circuit, and an output circuit. The first input circuit is configured to output a first input signal to a first node in response to a first control signal; the output control circuit is configured to output an output control signal to a second node under control of a level of the first node; and the output circuit includes an output terminal, and the output circuit is configured to output an output signal to the output terminal under control of a level of the second node.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: June 14, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20220180795
    Abstract: The invention provides a shift register, a drive method thereof, a gate drive circuit, and a display panel. Wherein, the shift register comprises: a display control circuit connected to a pull-up node, a first power terminal and a first control terminal; a sensing control circuit connected to the pull-up node, a second control terminal and a third control terminal and configured to store a potential of the pull-up node in a display mode under the control of the second control terminal and write the stored potential into the pull-up node in a sensing mode under the control of the third control terminal; and a first output circuit connected to the pull-up node, a first clock terminal and a first output terminal.
    Type: Application
    Filed: August 25, 2020
    Publication date: June 9, 2022
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20220180816
    Abstract: Provided is a display substrate. The display substrate includes two pixels arranged along a first direction and adjacent to each other on a base substrate, and a pixel circuit in each of the two pixels includes a drive transistor, a first reset transistor, and a second reset transistor. A display device is also provided.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Inventors: Zhidong YUAN, Yongqian Li, Can Yuan, Pan Xu
  • Publication number: 20220181454
    Abstract: Embodiments of the present disclosure provide a thin film transistor, a method of manufacturing the same, and a display device. The thin film transistor includes a metal conductive pattern layer, an interlayer insulating layer, and a metal oxide layer; and the metal conductive pattern layer includes: a light shielding pattern, a source signal line, and/or a drain signal line; the metal oxide layer includes: a source electrode, a drain electrode, and an active layer. An orthographic projection of the active layer on the base substrate has an overlapping region with that of the light shielding pattern; the source electrode extends through the interlayer insulating layer to connect to the source signal line, and/or the drain electrode extends through the interlayer insulating layer to connect to the drain signal line.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 9, 2022
    Inventors: Pan Xu, Yicheng Lin, Cuili Gai, Ling Wang, Yongqian Li
  • Patent number: 11355068
    Abstract: A shift register unit, a gate drive circuit, and a drive method are provided. The shift register unit includes a first input circuit, a second input circuit, and an output circuit. The first input circuit is configured to charge a first node in response to a first input signal to control a level of the first node; the second input circuit is configured to charge a second node in response to a second input signal to control a level of the second node; and the output circuit is configured to output an output signal to an output terminal under common control of the level of the first node and the level of the second node.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: June 7, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11355070
    Abstract: Provided are a shift register unit and a control method thereof, a gate driving circuit and a control method thereof, and a display apparatus. The shift register unit may include: a first shift register coupled to an input signal terminal, a first clock signal terminal and a second clock signal terminal. The first shift register is configured to generate a first output signal based on the signal at the first clock signal terminal and generate a second output signal based on the signal at the second clock signal terminal; and a second shift register coupled to the input signal terminal and a third clock signal terminal, the second shift register is configured to generate a third output signal based on the signal at the third clock signal terminal; and a pull-up node of the first shift register is coupled to a pull-up node of the second shift register.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: June 7, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • Patent number: 11348531
    Abstract: The present disclosure provides a shift register unit, including a detection signal input sub-circuit, a display signal input sub-circuit, an output circuit, a pull-down control circuit and a signal output terminal, the output circuit includes a pull-up sub-circuit and a pull-down sub-circuit, the pull-down control circuit includes a selection sub-circuit and a plurality of pull-down control sub-circuits. The present disclosure further provides a gate driving circuit, a display panel and a driving method for driving the display panel. The shift register unit has a simple structure and a long service life.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: May 31, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20220165829
    Abstract: A display substrate comprises a pixel driving circuit and a bottom-emission light-emitting device that are disposed on a base and located in each sub-pixel in a display area. The light-emitting device includes a first electrode electrically connected to the pixel driving circuit. The pixel driving circuit includes a first storage capacitor and a second storage capacitor connected in parallel. The first storage capacitor includes a first storage electrode and a second storage electrode that are disposed oppositely, and the first electrode serves as the first storage electrode. The second storage capacitor includes the second storage electrode and a third storage electrode that are disposed oppositely. The second storage electrode is located between the first storage electrode and the third storage electrode. The first storage electrode is electrically connected to the third storage electrode. The first electrode, the second storage electrode, and the third storage electrode are all transparent electrodes.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 26, 2022
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN
  • Patent number: 11342386
    Abstract: An array substrate and a display device are provided. The array substrate includes at least one data line and a plurality of sub-pixel groups arranged in an array along a first direction and a second direction. At least one sub-pixel group includes two rows of sub-pixels, one row of the two rows of sub-pixels includes a first color sub-pixel and a second color sub-pixel, and the other row of the two rows of sub-pixels includes a third color sub-pixel; the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in each sub-pixel group are connected to a same data line of the at least one data line.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: May 24, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Meng Li, Zhidong Yuan
  • Patent number: 11341923
    Abstract: The present disclosure relates to the field of display technology, and provides a shift register unit and a driving method thereof, a gate driving circuit, and a display panel. The shift register unit includes: an input circuit, a charging circuit, an inverter circuit, an output circuit, and a pull-down circuit. The input circuit is connected to a second clock signal terminal, a signal input terminal and a first node. The inverter circuit is connected to the signal input terminal, the second clock signal terminal, a first power supply terminal, a second power supply terminal and a pull-down node. The output circuit is connected to the pull-up node, the first power supply terminal and an output terminal. The pull-down circuit is connected to the pull-down node, the second power supply terminal, the pull-up node, and the output terminal.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: May 24, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Pan Xu, Yongqian Li, Can Yuan
  • Patent number: 11335263
    Abstract: Pixel driving method for driving pixel unit, display driving method and display substrate are provided. The pixel unit includes pixel driving circuit, including driving transistor, storage capacitor, and data writing circuit, the driving transistor has control electrode coupled to first terminal of the data writing circuit and the storage capacitor, and first electrode coupled to second terminal of the storage capacitor, and second terminal of the data writing circuit is coupled to data line. The pixel driving method includes: loading a data voltage into the data line, and controlling the first and second terminals of the data writing circuit to be connected; controlling the data line to be floating, and maintaining connection between the first and second terminals of the data writing circuit to reduce gate-source voltage of the driving transistor; and controlling the first and second terminals of the data writing circuit to be disconnected.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: May 17, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Pan Xu, Yongqian Li, Zhidong Yuan
  • Patent number: 11335264
    Abstract: A pixel circuit and a driving method thereof, and a display device, the pixel circuit being configured to drive a light-emitting element and including: a node control sub-circuit, which is configured to provide a first node with a signal of a data signal end and provide a second node with a signal of a control signal end under the control of a first scanning end; a driving sub-circuit, which is configured to provide the second node with a driving current under the control of the first node and the second node; a storage sub-circuit, which is configured to store electric charge between the first node and the second node; a reading sub-circuit, and the light-emitting element, which is electrically connected to the second node and a second power supply end, respectively.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: May 17, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Xuehuan Feng, Yongqian Li, Can Yuan, Meng Li, Dongxu Han
  • Patent number: 11328651
    Abstract: Embodiments of the present disclosure provide a shift register. The shift register includes a blank input circuit, N shift register circuits, and a compensation selection circuit. The blank input circuit is configured to store a blank input signal, and provide a blank pull-down signal to N pull-down nodes based on the blank input signal and a blank control signal. The N shift register circuits are respectively coupled to the blank input circuit via the N pull-down nodes, and are configured to output respective blank output signals based on the blank pull-down signal and respective clock signals during a blank period. The compensation selection circuit is configured to provide the blank input signal to the blank input circuit under the control of a compensation selection control signal. Herein N is a natural number greater than 1.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: May 10, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li