Patents by Inventor Zhidong Yuan

Zhidong Yuan 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: 11437440
    Abstract: An array substrate includes an array of a plurality of subpixels including a plurality of columns of subpixels respectively spaced apart by a plurality of inter-subpixel regions; a plurality of pixel driving circuits respectively driving light emission of the plurality of subpixels; and a plurality of detection and compensation lead lines respectively configured to respectively detect signals in the plurality of subpixels and respectively compensate signals in the plurality of subpixels. A respective one of a plurality of detection and compensation lead lines is disposed in a first inter-subpixel region between two directly adjacent columns of subpixels. The respective one of the plurality of detection and compensation lead lines is spaced apart by at least one columns of subpixels from a signal line configured to transmit an alternating current and arranged along a direction parallel to the respective one of the plurality of detection and compensation lead lines.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: September 6, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Can Yuan, Yongqian Li, Pan Xu, Zhidong Yuan, Meng Li, Xuehuan Feng, Zehua Ding
  • Publication number: 20220278182
    Abstract: The present disclose is related to an array substrate. The array substrate may include a base substrate; a driving transistor on the base substrate; an insulating layer on the driving transistor, the insulating layer comprising a via hole above a first electrode of the driving transistor; a conductive portion on the insulating layer; and a light emitting device on the conductive portion and electrically connected to the conductive portion. The conductive portion may be electrically connected to the first electrode of the driving transistor through the via hole. The light emitting device may be above the via hole, and an orthographic projection of the light emitting device on the base substrate may cover an orthographic projection of the via hole on the base substrate.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 1, 2022
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN
  • Patent number: 11424294
    Abstract: A display panel and a display device are disclosed. The display panel includes a plurality of sub-pixel units arranged in an array which includes N rows and 4M columns, sub-pixel units in each row is divided into a plurality of sub-pixel unit groups, and each sub-pixel unit group includes a first sub-pixel unit, a second sub-pixel unit, a third sub-pixel unit and a fourth sub-pixel unit which are sequentially in four adjacent columns along a first direction.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: August 23, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Publication number: 20220262886
    Abstract: Provided are a display substrate and a preparation method therefor, and a display apparatus, which can not only avoid jumpers generated when a light-emitting device in a sub-pixel is electrically connected to a storage capacitor, in order to avoid the risk of crosstalk, but can also increase the pixel aperture ratio of the display substrate and increase the capacitance of the storage capacitor in a pixel driving circuit.
    Type: Application
    Filed: November 6, 2020
    Publication date: August 18, 2022
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN, Meng LI, Xuelian CHENG
  • Patent number: 11398179
    Abstract: A shift register unit, a gate drive circuit, a display device and a driving method are provided. The shift register unit includes a sub-shift register, a second sub-shift register and an output control circuit. The first sub-shift register includes a first output terminal and a first control node, and is configured to output a first clock signal under control of a level of the first control node. The second sub-shift register include a second output terminal and a second control node, and the second output terminal outputs a display output signal in a display phase and a random output signal in a blank phase under control of a level of the second control node. The output control circuit is connected to the first sub-shift register and the second control node, and is configured to control the level of the second control node under control of an output control signal.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: July 26, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Xuehuan Feng, Can Yuan
  • 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: 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
  • 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
  • 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: 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: 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: 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: 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: 11328675
    Abstract: A shift register unit, a driving method, a gate driving circuit, and a display device are disclosed. The shift register unit includes: a shift circuit, used to output, to a first output end during a first time period, a power control signal, and output the power control signal to a second output end during a second time period; and a signal integrated circuit, used to output the power control signal to a third output end in response to the power control signal and a first output signal, output the power control signal to the third output end in response to the power control signal and a second output signal, and output, to the third output end at times other than the first and second time period in response to the power control signal, the first output signal and the second output signal, a first pull-down power signal.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: May 10, 2022
    Assignees: Hefei BOE Joint Technology Co., LTD., BOE Technology Group Co., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan, Min He, Haixia Xu
  • Patent number: 11328785
    Abstract: Shift register includes signal writing circuit, voltage control circuit and output circuit. The signal writing circuit is configured to write inverted signal of input signal provided by signal input terminal into second node responsive to control of second clock signal provided by second clock signal terminal. The voltage control circuit is configured to write first operating voltage into first node and write second clock signal into third node in voltage control circuit in response to control of voltage at first node, write second operating voltage into third node in response to control of second clock signal and write first clock signal provided by first clock signal terminal into first node in response to control of voltage at third node and first clock signal. The output circuit is configured to write second or first operating voltage into signal output terminal in response to control of voltage at first or second node.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: May 10, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Patent number: 11322550
    Abstract: An array substrate and a detection method thereof, and a display panel are disclosed. The array substrate includes a plurality of subpixels and a plurality of detection line structures. The plurality of subpixels are arranged in an array of a plurality of rows and a plurality of columns along a first direction and a second direction. Each of the plurality of detection line structures includes at least one first detection line extending along the first direction; adjacent (n)th row and (n+1)th row of subpixels in the array form a subpixel row group, one detection line structure is provided between the (n)th row and (n+1)th row of subpixels in each subpixel row group, and the detection line structure is configured to be connected to the (n)th row and (n+1)th row of subpixels and detect electrical characteristics of first transistors or light-emitting elements in the subpixels.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: May 3, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan, Meng Li
  • Patent number: 11315960
    Abstract: A thin film transistor structure and a manufacturing method thereof, a circuit structure, a display substrate and a display device are provided. The thin film transistor structure includes: a base plate, and a first thin film transistor and a second thin film transistor stacked on the base plate. The first thin film transistor and the second thin film transistor share a same active layer.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 26, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Can Yuan, Zhenfei Cai, Yongqian Li, Pan Xu, Zhidong Yuan, Meng Li, Xuehuan Feng
  • Publication number: 20220122533
    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 terminals 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: Application
    Filed: May 13, 2020
    Publication date: April 21, 2022
    Inventors: Can YUAN, Pan XU, Yongqian LI, Zhidong YUAN
  • Publication number: 20220123073
    Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a plurality of display units; the display unit includes a driving structure layer, a light emitting structure layer and a color filter layer which are located in the display area and sequentially arranged on the substrate; the light emitting structure layer comprises a plurality of light emitting structures each including a pixel define layer and an organic light emitting layer; the organic light emitting layer is located in an opening area of the pixel define layer and on the pixel define layer; the color filter layer includes a plurality of light filters; the display substrate includes a spacing area located in the display area, the spacing area being located between opening areas of pixel define layers of adjacent light emitting structures.
    Type: Application
    Filed: May 15, 2020
    Publication date: April 21, 2022
    Inventors: Meng LI, Yongqian LI, Chen XU, Dacheng ZHANG, Jingquan WANG, Zhidong YUAN, Haixia XU
  • Publication number: 20220123056
    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: Application
    Filed: May 15, 2020
    Publication date: April 21, 2022
    Applicants: 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