Patents by Inventor Xuehuan Feng

Xuehuan 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).

  • Publication number: 20250246136
    Abstract: A pixel circuit and its driving method, as well as a display device, are disclosed. The pixel circuit includes a driving circuit, a first compensation circuit, and a second compensation circuit. The first compensation circuit includes a first storage capacitor, with a first electrode of the first storage capacitor connected to the control terminal of the driving circuit, and a second electrode of the first storage capacitor connected to the first terminal of the driving circuit. The second compensation circuit includes a second storage capacitor and a first switching transistor. A first electrode of the second storage capacitor is connected to the first terminal of the driving circuit, a first electrode of the first switching transistor is connected to the second storage capacitor, and the gate electrode of the first switching transistor is configured to receive a second compensation control signal.
    Type: Application
    Filed: August 16, 2023
    Publication date: July 31, 2025
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 12374292
    Abstract: The present disclosure provides a shift register unit, including: a first sensing control input circuit and at least one first output circuit; the shift register unit further includes: a first voltage control circuit, a first sensing input leakage prevention circuit and a first current limiting circuit; the first sensing control input circuit is connected to a first pull-up node through the first sensing input leakage prevention circuit, the first sensing control input circuit is connected to the first sensing input leakage prevention circuit at a first sensing input leakage prevention node connected to a first voltage control node, the first sensing input leakage prevention circuit is connected to the clock control signal input terminal and is configured to control on/off between the first sensing input leakage prevention node and the first pull-up node; the first current limiting circuit is connected to the first voltage control node.
    Type: Grant
    Filed: October 27, 2022
    Date of Patent: July 29, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20250232732
    Abstract: Disclosed is a display panel including a base substrate (101), and a gate drive circuit (40), a plurality of clock signal lines, and a plurality of connecting lines (51) that are disposed on the base substrate (101). The plurality of clock signal lines are located on a side of the gate drive circuit (40) along a first direction (X) and are arranged in sequence. Each connecting line (51) is electrically connected with the gate drive circuit (40) and a clock signal line. At least one connecting line (51) includes a load adjusting portion (512) configured to compensate for a load difference between different clock signal lines. An orthographic projection of the load adjusting portion (512) of the at least one connecting line (51) on the base substrate (101) is at least partially overlapped with an orthographic projection of at least one clock signal line on the base substrate (101).
    Type: Application
    Filed: April 1, 2025
    Publication date: July 17, 2025
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20250232718
    Abstract: A shift register unit is provided to include a shift register circuit having a display input circuit and at least two driving output circuits for sequentially outputting display driving pulses; each driving output circuit is configured to write a signal from a driving clock signal input terminal to a driving signal output terminal under a control of an active-level signal at a pull-up node; the shift register circuit further includes a first and/or a second pull-up voltage-stabilizing circuit; the first pull-up voltage-stabilizing circuit is connected to the pull-up node and at least configured to maintain a voltage at the pull-up node unchanged during a first driving output circuit outputs the display driving pulse; and the second pull-up voltage-stabilizing circuit is connected to the pull-up node and at least configured to maintain the voltage at the pull-up node unchanged during a last driving output circuit outputs the display driving pulse.
    Type: Application
    Filed: March 20, 2023
    Publication date: July 17, 2025
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 12361897
    Abstract: A shift register unit, a driving method thereof, and a gate driving circuit are disclosed. The shift register unit includes: an input circuit configured to receive an input signal from an input signal terminal and output the input signal to a voltage stabilizer node; a voltage-stabilizing circuit configured to input potential of the voltage stabilizer node to a pull-up node and control potential of the voltage stabilizer node; an output circuit configured to receive a clock signal from a clock signal terminal and provide an output signal to an output signal terminal based on the clock signal received under control of the potential of the pull-up node; and a control circuit configured to control potential of the output signal terminal under control of the potential of the pull-up node.
    Type: Grant
    Filed: May 23, 2024
    Date of Patent: July 15, 2025
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Sixiang Wu
  • Publication number: 20250225940
    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 transmission circuit and a first input-output unit. The first transmission circuit is electrically connected to a blanking pull-up node and a 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: Application
    Filed: March 27, 2025
    Publication date: July 10, 2025
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 12354543
    Abstract: A pixel circuit includes: a driving sub-circuit, a sensing sub-circuit, a light-emitting control sub-circuit, a sensing control sub-circuit, a light-emitting device and a sensing terminal. The driving sub-circuit includes a first terminal and a second terminal coupled to the light-emitting device, and is configured to write a data signal into the driving sub-circuit in response to a first scan signal and control an electrical signal flowing through the driving sub-circuit according to the data signal. The sensing sub-circuit is configured to connect the second terminal to the sensing terminal in response to a second scan signal. The light-emitting control sub-circuit is configured to connect a first voltage terminal to the first terminal in response to a light-emitting control signal. The sensing control sub-circuit is configured to connect a second voltage terminal to the first terminal in response to a sensing control signal provided by a sensing control terminal.
    Type: Grant
    Filed: May 30, 2022
    Date of Patent: July 8, 2025
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liu Wu, Xuehuan Feng, Yongqian Li
  • Patent number: 12354559
    Abstract: Embodiments of the present disclosure provide a shift register, a gate drive circuit and a display device. The shift register includes a light emitting drive output module configured to supply a first voltage of a first power supply terminal to a light emitting control drive signal output terminal in response to control of a voltage at a third node, to supply a second voltage of a second power supply terminal to the light emitting control drive signal output terminal in response to control of a voltage at a second node, and to supply a second voltage of a second power supply terminal to the light emitting control drive signal output terminal in response to control of the second voltage at the second power supply terminal.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: July 8, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 12340754
    Abstract: A shift register circuit includes an input sub-circuit, an output sub-circuit, a control sub-circuit and a compensation sub-circuit. The input sub-circuit is configured to, under control of a first input signal received at a first input signal terminal, transmit the first input signal to a pull-up node. The output sub-circuit is configured to transmit a first clock signal received at a first clock signal terminal to a first signal output terminal under control of a voltage at the pull-up node. The control sub-circuit is configured to transmit a voltage at a first reference node to the pull-up node under control of a first control signal received at a first control signal terminal. The compensation sub-circuit is configured to transmit a voltage at a seventh node to the pull-up node under control of a seventh clock signal received at a seventh clock signal terminal.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: June 24, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 12334022
    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 includes a first input circuit and a first output circuit; the second sub-circuit includes 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: March 27, 2024
    Date of Patent: June 17, 2025
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li, Hao Liu
  • Patent number: 12334020
    Abstract: The present disclosure provides shift register unit, including: sensing control circuit connected to sensing signal input terminal, random signal input terminal, and sensing control node, and configured to write signal provided by sensing signal input terminal to sensing control node in response to active level signal provided by random signal input terminal; first sensing input circuit connected to clock control signal input terminal, sensing control node, and first pull-up node, and configured to write signal provided by clock control signal input terminal to first pull-up node only in response to active level signal at sensing control node; and first driving output circuit connected to first pull-up node, first driving clock signal input terminal, and first driving signal output terminal, and configured to write signal provided by first driving clock signal input terminal to first driving signal output terminal in response to active level signal at first pull-up node.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: June 17, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Dacheng Zhang
  • Patent number: 12333976
    Abstract: The present disclosure provides a display device, a gate drive circuit, a shift register unit and a driving method thereof. The shift register unit includes an input subcircuit configured to control a voltage at the first node under voltage control of the input control end; a signal output subcircuit configured to control disconnection and conduction between the clock signal ends and respective signal output ends under voltage control of the first node; a first control subcircuit configured to control the voltage at the first node under voltage control of the first control signal end.
    Type: Grant
    Filed: May 16, 2023
    Date of Patent: June 17, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20250182698
    Abstract: Embodiments of the present disclosure provide a shift register, a gate drive circuit and a display device. The shift register includes a light emitting drive output module configured to supply a first voltage of a first power supply terminal to a light emitting control drive signal output terminal in response to control of a voltage at a third node, to supply a second voltage of a second power supply terminal to the light emitting control drive signal output terminal in response to control of a voltage at a second node, and to supply a second voltage of a second power supply terminal to the light emitting control drive signal output terminal in response to control of the second voltage at the second power supply terminal.
    Type: Application
    Filed: October 31, 2022
    Publication date: June 5, 2025
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 12315459
    Abstract: Disclosed is a display panel including a base substrate (101), and a gate drive circuit (40), a plurality of clock signal lines, and a plurality of connecting lines (51) that are disposed on the base substrate (101). The plurality of clock signal lines are located on a side of the gate drive circuit (40) along a first direction (X) and are arranged in sequence. Each connecting line (51) is electrically connected with the gate drive circuit (40) and a clock signal line. At least one connecting line (51) includes a load adjusting portion (512) configured to compensate for a load difference between different clock signal lines. An orthographic projection of the load adjusting portion (512) of the at least one connecting line (51) on the base substrate (101) is at least partially overlapped with an orthographic projection of at least one clock signal line on the base substrate (101).
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: May 27, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20250166572
    Abstract: A shift register is provided to include a voltage control circuit coupled to an output control node; at least one driving output circuit, each including an output transistor and a capacitor structure sequentially arranged along a first direction; a first conductive line therebetween and extending along a second direction and coupled to a signal output line configured for the driving output circuit; the output transistor includes a gate electrode coupled to the output control node and a first voltage writing electrode of the capacitor structure, a first electrode coupled to a clock signal line configured for the driving output circuit and a second electrode coupled to the first conductive line; a second conductive line is disposed between the first conductive line and the capacitor structure, and the first conductive line is coupled to a second voltage writing electrode of the capacitor structure through the second conductive line.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Inventors: Xuehuan FENG, Dacheng ZHANG, Yongqian LI, Mingming XIE
  • Publication number: 20250151540
    Abstract: A display substrate and a display device. The display substrate includes a base substrate, and a plurality of pixel units and a plurality of scanning lines on the base substrate. Each pixel unit includes a plurality of sub-pixels and a light shielding layer, the plurality of sub-pixels is arranged in sequence in a first direction, each sub-pixel includes a sub-pixel driving circuitry and a light-emitting element coupled to each other, and the sub-pixel driving circuitry is configured to provide a driving signal to the light-emitting element. At least a part of the light shielding layer is arranged between the sub-pixel driving circuitry and the base substrate. Each scanning line includes at least a part extending in the first direction, is coupled to a corresponding sub-pixel driving circuitry, and is arranged at a same layer as the light shielding layer.
    Type: Application
    Filed: January 8, 2025
    Publication date: May 8, 2025
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqian LI, Can YUAN, Xuehuan FENG
  • Patent number: 12293723
    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 transmission circuit and a first input-output unit. The first transmission circuit is electrically connected to a blanking pull-up node and a 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: February 19, 2024
    Date of Patent: May 6, 2025
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 12288527
    Abstract: A display panel includes: a substrate, sub-pixels and a gate drive circuit. The sub-pixel includes a pixel drive circuit. The gate drive circuit includes cascaded shift registers, and a shift register is electrically connected to pixel drive circuits in a row of sub-pixels. The gate drive circuit further includes cascade input signal lines and cascade display reset signal lines. The cascade input signal line is configured to connect a shift signal terminal and an input signal terminal of two different shift register; and the cascade display reset signal line is configured to connect a shift signal terminal and a display reset signal terminal of two different shift register. The display panel has sub-pixel regions for arranging the sub-pixels and first gap regions each located between two adjacent columns of sub-pixel regions; the cascade display reset signal lines and the cascade input signal lines are disposed in different first gap regions.
    Type: Grant
    Filed: January 24, 2024
    Date of Patent: April 29, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Ying Han, Xuehuan Feng, Yicheng Lin, Pan Xu, Guoying Wang, Xing Zhang, Zhan Gao, Mingi Chu
  • Publication number: 20250131879
    Abstract: Provided are a display panel, a driving method therefor and a display device. The display panel includes pixel driving circuits and a first gate driving circuit. The pixel driving circuit includes a driving circuit connected to first to third nodes for inputting a driving current to the third node through the second node, and a first switching unit having a first terminal connected to the third node and a second terminal connected to a sensing signal terminal for electrically connecting, in response to a signal at a control terminal thereof, the third node and sensing signal terminal. The first gate driving circuit includes a first output terminal corresponding to the pixel driving circuit and connected to the control terminal. The first output terminal outputs an active level pulse during data writing stage and black frame insertion stage of a driving cycle of the pixel driving circuit corresponding thereto.
    Type: Application
    Filed: March 29, 2022
    Publication date: April 24, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yongqian LI, Xuehuan FENG
  • Publication number: 20250124877
    Abstract: A shift register is provided and includes a display input reset circuit, an inverter circuit, at least one output circuit and a first detection circuit; the display input reset circuit, the inverter circuit and the output circuit are connected to a pull-up node; the inverter circuit and the at least one output circuit are connected to a pull-down node; the first detection circuit is connected to a signal acquisition point, an acquisition control terminal, and a first signal detection line, and configured to acquire a voltage at the signal acquisition point in response to a signal from the acquisition control terminal and output a detection voltage corresponding to the acquired voltage to the first signal detection line, an external first chip adjusts an active level voltage from the third power supply terminal according to the detection voltage; the signal acquisition point includes the pull-down node and/or a signal output terminal.
    Type: Application
    Filed: April 28, 2023
    Publication date: April 17, 2025
    Inventors: Xuehuan FENG, Yongqian LI, Xing YAO