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).

  • Publication number: 20240155889
    Abstract: A display panel and a display device, wherein the display panel includes a display area and the display panel further includes: a base substrate, a third conductive layer, a pixel electrode layer, a common electrode layer, the third conductive layer is disposed at a side of the base substrate and includes a first conductive part in the display area. The pixel electrode layer is disposed at a side of the third conductive layer away from the base substrate, the common electrode layer is disposed at a side of the pixel electrode layer away from the base substrate, the common electrode layer includes at least a through-hole contacting part in the display area connected to the first conductive part via a first through hole.
    Type: Application
    Filed: May 26, 2021
    Publication date: May 9, 2024
    Inventors: Yongqian LI, Zhidong YUAN
  • Publication number: 20240153571
    Abstract: A shift register includes: an input circuit electrically connected to a first clock signal terminal, a first voltage signal terminal and a first node; a first output circuit electrically connected to the first node, a second clock signal terminal and a scanning signal terminal; a first control circuit electrically connected to a third clock signal terminal, a fourth clock signal terminal, a fifth clock signal terminal and the first node; a second control circuit electrically connected to a sixth clock signal terminal, a second voltage signal terminal, the first node, the first voltage signal terminal and a second node; a third control circuit electrically connected to the first node, the second voltage signal terminal, the third clock signal terminal and the second node; and a second output circuit electrically connected to the second node, the second voltage signal terminal and the scanning signal terminal.
    Type: Application
    Filed: May 26, 2021
    Publication date: May 9, 2024
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN
  • 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: 11972821
    Abstract: A shift register unit and a control method thereof, a gate driving circuit, and a display device are provided. The shift register unit comprises: a first control circuit (110) and an energy storage circuit (150), which directly control the potential of a first node (Q1); a pull-down control circuit (120), a second control circuit (130) and a first pull-down circuit (140), which indirectly control the potential of the first node (Q1); and an output circuit (160), which outputs, under the control of the potential of the first node (Q1), a first voltage signal provided by a first voltage end (VDD) to a signal output end. By means of the shift register unit, the control method thereof and the gate drive circuit, the pulse width of a gate scanning signal can be adjusted, thereby meeting various display requirements.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: April 30, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • Publication number: 20240135882
    Abstract: A voltage supply circuit, a voltage supply method, a voltage supply module and a display device are provided. The voltage supply circuit includes a first node control circuit, a first control node control circuit, a second node control circuit and a driving voltage output circuit. The first node control circuit controls a potential of the first node; the first control node control circuit controls the potential of the first control node; the second node control circuit controls a potential of the second node; the driving voltage output circuit is electrically connected to the second node, the driving voltage output terminal and the initial voltage terminal respectively, and is configured to control the driving voltage output terminal to output a driving voltage according to the initial voltage provided by the initial voltage terminal under the control of the potential of the second node.
    Type: Application
    Filed: January 27, 2022
    Publication date: April 25, 2024
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • Publication number: 20240138211
    Abstract: A display substrate and a display device are provided. The display substrate includes: a base substrate and a plurality of sub-pixels arranged on the base substrate, the plurality of the sub-pixels are arranged in an array, the sub-pixel includes: a reference signal line and a second scan line; and a sub-pixel driving circuit including a driving transistor and a second transistor, a gate electrode of the second transistor is coupled to the second scan line, a first electrode of the second transistor and the reference signal line form an integrated structure, a second electrode of the second transistor is coupled to a gate electrode of the driving transistor.
    Type: Application
    Filed: November 29, 2021
    Publication date: April 25, 2024
    Inventors: Zhidong YUAN, Yongqian LI, Can YUAN, Jun LIU
  • Patent number: 11967620
    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: Grant
    Filed: February 28, 2022
    Date of Patent: April 23, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Pan Xu, Yicheng Lin, Cuili Gai, Ling Wang, Yongqian Li
  • Patent number: 11961466
    Abstract: A shift register unit and a driving method thereof, a gate driving circuit, and a display device. The shift register unit includes: an input circuit, a first capacitor circuit, an output circuit, an output pull-down circuit, a coupling circuit, and an inverter circuit. The inverter circuit is coupled to an input control terminal, a first node, a second node, and a first level signal input terminal, and a second level signal input terminal; and used to control to connect or disconnect the second node and the first level signal input under the control of the input control terminal and the first level signal input terminal; also used to control to connect or disconnect the second node and the second level signal input terminal under the control of the first node and the second level signal input terminal.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: April 16, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan, Pan Xu
  • 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: 11955089
    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: Grant
    Filed: February 25, 2022
    Date of Patent: April 9, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan, Pan Xu
  • 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: 11935483
    Abstract: Provided are a pixel circuit, a driving method thereof and a display panel. The pixel circuit includes: multiple sub-pixel circuits in an array; each sub-pixel circuit includes a first node control sub-circuit, a second node control sub-circuit, a driving sub-circuit, a storage sub-circuit, a reading sub-circuit and a light emitting device; at least reading sub-circuits of the sub-pixel circuits of some rows are controlled by a same sensing control line; the first node control sub-circuit charges the storage sub-circuit in response to a first scan signal; the second node control sub-circuit writes a reference voltage signal into a second node in response to a second scan signal; the reading sub-circuit reads a potential of the second node in response to a sensing control signal written by a sensing control line; the driving sub-circuit drives the light emitting device to emit light.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: March 19, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • 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: 11937480
    Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. At least one sub-pixel includes a first transistor, a second transistor and a storage capacitor. The display substrate further includes an extension portion protruding from the gate electrode of the first transistor, and the extension portion is extended from the gate electrode of the first transistor in the second direction; the extension portion is at least partially overlapped with the first electrode of the second transistor in a direction perpendicular to the base substrate and is electrically connected with the first electrode of the second transistor; in the first direction, the extension portion has a second side closest to the second capacitor electrode, and the second side is recessed in a direction away from the second capacitor electrode.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: March 19, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhongyuan Wu, Yongqian Li, Can Yuan, Zhidong Yuan, Meng Li, Dacheng Zhang, Lang Liu
  • Publication number: 20240087516
    Abstract: Provided is a display substrate, including: a base substrate; a plurality of sub-pixels arranged in an array on the base substrate, each of the sub-pixels including a light-emitting drive circuit, a reset circuit, a compensation circuit and a light-emitting element; wherein the light-emitting drive circuit and the reset circuit are connected to the light-emitting element, the light-emitting drive circuit is configured to provide a drive signal to the light-emitting element, and the reset circuit is configured to provide a reset signal to the light-emitting element; the compensation circuit is connected to the light-emitting drive circuit, and the compensation circuit is configured to provide a compensation signal to the light-emitting drive circuit; wherein at least two of the sub-pixels share a same target circuit, and the target circuit includes at least one of the reset circuit and the compensation circuit.
    Type: Application
    Filed: May 13, 2021
    Publication date: March 14, 2024
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN
  • Publication number: 20240087661
    Abstract: A shift register unit and a control method thereof, a gate driving circuit, and a display device are provided. The shift register unit comprises: a first control circuit (110) and an energy storage circuit (150), which directly control the potential of a first node (Q1); a pull-down control circuit (120), a second control circuit (130) and a first pull-down circuit (140), which indirectly control the potential of the first node (Q1); and an output circuit (160), which outputs, under the control of the potential of the first node (Q1), a first voltage signal provided by a first voltage end (VDD) to a signal output end. By means of the shift register unit, the control method thereof and the gate drive circuit, the pulse width of a gate scanning signal can be adjusted, thereby meeting various display requirements.
    Type: Application
    Filed: April 15, 2021
    Publication date: March 14, 2024
    Inventors: Zhidong YUAN, Yongqian LI, Can YUAN
  • Patent number: 11929022
    Abstract: The present disclosure provides a multiplexing circuitry, a multiplexing method, a multiplexing module, and a display device. The multiplexing circuitry includes N multiplexing unit circuitries, N energy storage unit circuitries and N control unit circuitries. An nth multiplexing unit circuitry is configured to enable an nth output data line to be electrically coupled to or electrically decoupled from an input data line under the control of a potential at an nth control end; an nth energy storage unit circuitry is configured to control a potential at the nth control end in accordance with an nth clock signal; and an nth control unit circuitry is configured to enable the nth control end to be electrically coupled to or electrically decoupled from an nth switch control line in accordance with a control voltage signal and an nth switch control signal.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: March 12, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • 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: 20240078978
    Abstract: A display substrate including a base substrate and a plurality of pixel units on the base substrate. Each pixel unit includes: a plurality of sub-pixels and at least one scanning line. The plurality of sub-pixels are arranged sequentially in a first direction, each sub-pixels includes a sub-pixel driving circuit and a light-emitting element, and the sub-pixel driving circuit is coupled to the light-emitting element. Each scanning line includes a first scanning conductive layer and a second scanning conductive layer arranged in a laminated manner, the first scanning conductive layer is coupled to the second scanning conductive layer, the first scanning conductive layer includes at least a portion extending in the first direction, and the first scanning conductive layer is coupled to a plurality of sub-pixel driving circuits in the plurality of sub-pixels.
    Type: Application
    Filed: August 5, 2022
    Publication date: March 7, 2024
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN, Luke DING