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).

  • 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: 11900885
    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: September 17, 2021
    Date of Patent: February 13, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Han, Xuehuan Feng, Yicheng Lin, Pan Xu, Guoying Wang, Xing Zhang, Zhan Gao, Mingi Chu
  • Patent number: 11869411
    Abstract: A display substrate includes: a base substrate; a first conductive pattern arranged on the base substrate; a first insulation layer arranged at a side of the first conductive pattern away from the base substrate; a second conductive pattern arranged at a side of the first insulation layer away from the base substrate; a second insulation layer arranged at a side of the second conductive pattern away from the base substrate; and a third conductive pattern arranged at a side of the second insulation layer away from the base substrate. The third conductive pattern and the first conductive pattern together serve as a first electrode plate of the capacitor, and the second conductive pattern serves as a second electrode plate of the capacitor.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 9, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li, Dacheng Zhang, Lang Liu
  • Patent number: 11869426
    Abstract: A pixel driving circuit includes: a data writing sub-circuit configured to write a data signal received at a data signal terminal into a first node under control of a first scanning signal received at a first scanning signal terminal; a driving sub-circuit configured to drive a light-emitting device coupled to a second node to work under control of a voltage of the first node and a first power supply voltage signal received at a first power supply voltage signal terminal; and a time control sub-circuit configured to transmit a control signal received at a control signal terminal to the first node under control of a second scanning signal received at a second scanning signal terminal after the light-emitting to device works for a preset time, so that the driving sub-circuit is turned off to control the light-emitting device to stop working.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: January 9, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqian Li, Xuehuan Feng
  • Publication number: 20240005875
    Abstract: A shift register, a gate drive circuit and a driving method therefor. The shift register includes a display pre-charge reset subcircuit, a sensing pre-charge reset subcircuit, a pull-down control subcircuit, an output subcircuit, a sensing cascade subcircuit and a black frame insertion cascade subcircuit. The display pre-charge reset subcircuit is configured to provide a signal of a first power supply end for a pull-up node under control of a first signal input end and provide a signal of a second power supply end to the pull-up node under control of a reset signal end; the sensing pre-charge reset subcircuit is configured to provide a signal of a first clock signal end to the pull-up node under control of the sensing cascade node and the first clock signal end, and provide a signal of the second power supply end to the pull-up node under control of a total reset end.
    Type: Application
    Filed: September 13, 2023
    Publication date: January 4, 2024
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 11862099
    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: April 27, 2022
    Date of Patent: January 2, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11848064
    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: in response to a first voltage signal received at a first voltage signal terminal, transmit the first voltage signal to a leakage prevention input node; and in response to a second voltage signal received at a second voltage signal terminal, transmit the second voltage signal to the leakage prevention input node. The first voltage signal and the second voltage signal are mutually inverted signals. 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: Grant
    Filed: December 26, 2020
    Date of Patent: December 19, 2023
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11844253
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes a gate driving circuit including a first transistor; a base substrate; a functional layer located on a side of the base substrate, a material of the functional layer is a thermal conductive material, and the functional layer includes a first functional portion; an active layer located on a side of the functional layer away from the base substrate, the active layer includes a first active portion including at least one first active sub-portion which is configured to form a channel region of the first transistor; a second conductive layer located on a side of the active layer away from the base substrate, the second conductive layer includes a first conductive portion connected to the first functional portion through a first via hole.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: December 12, 2023
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO. , LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11842689
    Abstract: A pixel circuit, a driving method of pixel circuit, and a display device are provided. The pixel circuit includes: a light emitting device, a driving sub-circuit, an energy storage sub-circuit, a data writing sub-circuit and a pull-down sub-circuit; the data writing sub-circuit is configured to control a voltage signal on a data line to be written into a control end of the driving sub-circuit in response to a data writing control signal; a first end of the driving sub-circuit is electrically connected to a target node, a second end of the driving sub-circuit is electrically connected to a power supply voltage, and the driving sub-circuit is configured to control a conduction of the driving sub-circuit under a control of a voltage on a control end of the driving sub-circuit.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: December 12, 2023
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqian Li, Xuehuan Feng
  • Publication number: 20230395010
    Abstract: A shift-register unit circuit includes a first input sub-circuit configured to have a display-input terminal to receive a display-input signal, and to provide a display output-control signal to a first node; a second input sub-circuit configured to have a blank-input terminal to receive a blank-input signal for charging a blank-control node, and to provide a blank output-control signal to the first node; an output sub-circuit configured to output signal under control of the first node; a first control sub-circuit, configured to control a voltage level of a second node under control of the first node; a second control sub-circuit configured to pull down voltage levels of the first node and the output terminal to turn-off voltage levels under control of the second node; and an anti-leak sub-circuit configured to provide a working voltage level to an anti-leak connection point.
    Type: Application
    Filed: August 20, 2023
    Publication date: December 7, 2023
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11830408
    Abstract: A shift register unit and a method of driving the shift register unit, a gate driving circuit, and a display device. The shift register unit includes: a first shift register configured to generate a first control output signal (CR1) and a second control output signal (CR2) based on a signal at a first clock signal terminal (CLKD); and a second shift register configured to generate a second output signal (OUT2) based on a signal at a third clock signal terminal (CLKE2), wherein a first pull-down node (PD1_1) of the first shift register is connected to a second pull-down node (PD2_2) of the second shift register, and a second pull-down node (PD1_2) of the first shift register is connected to a first pull-down node (PD2_1) of the second shift register.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: November 28, 2023
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11823629
    Abstract: A shift register unit includes a first input/output unit which includes a first pull-down control circuit and a first auxiliary input circuit, and a second input/output unit which includes a second pull-down control circuit and a second auxiliary input circuit. The first pull-down control circuit controls a level of a first pull-down node. The first auxiliary input circuit is coupled to the first pull-down control circuit and controls the first pull-down control circuit together with a level of a first pull-up node in response to a display control signal and a blanking control signal. The second pull-down control circuit controls a level of a second pull-down node. The second auxiliary input circuit is coupled to the second pull-to down control circuit and controls the second pull-down control circuit together with a level of a second pull-up node in response to the display control signal and the blanking control signal.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: November 21, 2023
    Assignees: Heifei Boe Joint Technology Co., LTD., Boe Technology Group Co., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11817028
    Abstract: The present disclosure relates to the field of display technology, and in particular, to a gate driving structure, an array substrate and a display device. The gate driving structure may include: a base substrate; a shift register, formed on the base substrate, and including a plurality of thin film transistors and at least one capacitor, the capacitor being coupled to the thin film transistor; and a signal wiring group, formed on the base substrate, and including a plurality of signal wirings spaced apart from each other, the signal wiring being coupled to the thin film transistor. An orthographic projection of the capacitor on the base substrate is at least partially overlapped with an orthographic projection of the signal wiring group on the base substrate.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: November 14, 2023
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Pan Xu
  • Patent number: 11817034
    Abstract: A display substrate includes: a base substrate; a first conductive pattern arranged on the base substrate; a first insulation layer arranged at a side of the first conductive pattern away from the base substrate; a second conductive pattern arranged at a side of the first insulation layer away from the base substrate; a second insulation layer arranged at a side of the second conductive pattern away from the base substrate; and a third conductive pattern arranged at a side of the second insulation layer away from the base substrate. The third conductive pattern and the first conductive pattern together serve as a first electrode plate of the capacitor, and the second conductive pattern serves as a second electrode plate of the capacitor.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 14, 2023
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li, Dacheng Zhang, Lang Liu
  • Publication number: 20230343264
    Abstract: Disclosed is a shift register, a gate driving circuit, a display apparatus and a driving method, the shift register including a first input sub-circuit, configured to receive a first input signal from a first input terminal and output an output blanking output control signal; a second input sub-circuit, configured to receive a second input signal from a second input terminal and output a display output control signal; a selection sub-circuit, having a first terminal connected to the second input sub-circuit, a second terminal connected to the first input sub-circuit, and a third terminal connected to a first node, configured to control a potential of the first node according to the display output control signal and the blanking output control signal; an output sub-circuit, configured to output a composite output signal via an output terminal under control of a first node.
    Type: Application
    Filed: June 28, 2023
    Publication date: October 26, 2023
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li