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: 11328672
    Abstract: A shift register unit and a driving method thereof, a gate driving circuit, and a display device are provided. The shift register unit includes: a first input circuit, a second input circuit, an output circuit, and a compensation circuit, the first input circuit is configured to write a first input signal to the first node in response to a first control signal; the second input circuit is configured to input a second input signal to the second node in response to a detection control signal and configured to transmit a level of the second node to the first node in response to a second control signal; the compensation circuit is configured to compensate the level of the second node; and the output circuit is configured to output a composite output signal to the output terminal under control of a level of the first node.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: May 10, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • 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: 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: 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: 11315463
    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: April 26, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian 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: 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
  • 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: 20220122527
    Abstract: A gate driving unit, a circuit, a display substrate, a display panel, and a display device are provided. The gate driving unit includes an Nth stage of shift register unit and an (N+1)th stage of shift register unit, N is a positive integer. The Nth stage of shift register unit includes an Nth stage of pull-up node control circuit, and the (N+1)th stage of shift register unit includes an (N+1)th stage of pull-up node control circuit. The Nth stage of pull-up node control circuit is electrically connected to an Nth stage of pull-up node and a control line, respectively, is configured to control a potential of the Nth stage of pull-up node under the control of a control signal inputted by the control line. The (N+1)th stage of pull-up node control circuit is electrically connected to an (N+1)th stage of pull-up node and the control line, respectively, and is configured to control a potential of the (N+1)th stage of pull-up node under the control of the control signal inputted by the control line.
    Type: Application
    Filed: August 8, 2019
    Publication date: April 21, 2022
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan FENG, Yongqian LI
  • 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: 20220114970
    Abstract: Provided are a shift register unit circuit and drive method, and a gate driver and a display device. The shift register unit circuit includes a first sub-unit circuit, a second sub-unit circuit, a third sub-unit circuit, and a fourth sub-unit circuit. Responsive to providing a corresponding input pulse and clock signal, the shift register unit circuit is configured output first, second, third, and fourth output signals. The shift register unit circuit is configured such that a fifth node is in conduction with a second node at least while the reset pulse is active.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 14, 2022
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20220115486
    Abstract: A display substrate includes: a base substrate including a display area and a peripheral area pixel units in the display area, each including a pixel drive circuit and a light emitting device the light emitting device including a first electrode, a second electrode, and a light emitting layer; a first power trace located in the peripheral area and electrically connected to the first electrode; a second power trace located in the peripheral area and electrically connected to the second electrode; a planarization layer with at least a portion thereof being located in the peripheral area. An orthographic projection of the planarization layer on the base substrate at least partially overlaps an orthographic projection of each of the first and second power traces on the base substrate, the first and second power traces are located in different layers, and a portion of the planarization layer is located between the first and second power traces.
    Type: Application
    Filed: May 19, 2020
    Publication date: April 14, 2022
    Inventors: Zhidong Yuan, Dacheng Zhang, Yongqian Li, Lang Liu, Zhongyuan Wu, Can Yuan, Meng Li
  • Publication number: 20220115483
    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 display area and a transparent area. The display area includes a plurality of sub-pixels. In a direction perpendicular to the display substrate, the sub-pixel includes a first metal layer, a semiconductor layer, a second metal layer and a third metal layer which are arranged on a substrate. The first metal layer includes a first plate, the semiconductor layer includes a second plate, the second metal layer includes a first scanning line and a second scanning line, and the third metal layer includes a third plate, a first power supply line, a second power supply line, a compensation line and a data line.
    Type: Application
    Filed: May 15, 2020
    Publication date: April 14, 2022
    Inventors: Meng LI, Yongqian LI, Ying WANG
  • Publication number: 20220114938
    Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are provided. The shift register unit includes an input circuit, a first control circuit, a blanking control circuit, a first output circuit, and a second output circuit. The input circuit is configured to control a level of a first node in response to an input signal input; the first control circuit is configured to control a level of the second node; the blanking control circuit is configured to control the level of the first node and the level of the second node; the first output circuit is configured to output a first output signal at the first output terminal under control of the level of the first node; and the second output circuit is configured to output a second output signal at the second output terminal under control of the level of the second node.
    Type: Application
    Filed: December 20, 2021
    Publication date: April 14, 2022
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 11302257
    Abstract: A shift register is provided, which includes a blanking input circuit, a blanking control circuit, a blanking pull-down circuit, and a shift register circuit. The blanking input circuit may provide a blanking input signal to a first control node according to a second clock signal. The blanking control circuit may provide a first clock signal to a second control node and maintain a voltage difference between the first control node and the second control node, according to a voltage of the first control node. The blanking pull-down circuit may provide a voltage of the second control node to a pull-down node according to the first clock signal. The shift register circuit may provide a shift signal via a shift signal output terminal and a first drive signal via a first drive signal output terminal according to a voltage of the pull-down node.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: April 12, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20220108657
    Abstract: A shift register circuit includes a first input sub-circuit, an output sub-circuit and an output control sub-circuit. The first input sub-circuit transmits a signal received at a second signal input terminal to a pull-up node. The output sub-circuit transmits a signal received at a first clock signal terminal to a shift signal output terminal, and transmits a signal received at an output signal transmission terminal to a first scan signal output terminal. The output control sub-circuit transmits a signal received at a chamfering signal terminal to the first scan signal output terminal in a predetermined time before the first scan signal output terminal stops outputting the signal from the output signal transmission terminal. The chamfering signal terminal transmits a signal with a voltage amplitude within a variation range of a voltage amplitude of a signal of the first scan signal output terminal.
    Type: Application
    Filed: April 7, 2020
    Publication date: April 7, 2022
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 11295827
    Abstract: The embodiments of the present disclosure propose a shift register and a method for driving the same, a gate driving circuit, and a display apparatus. The shift register includes: a scanning circuit configured to generate a first signal for causing a gate driving signal output by the shift register to have a row shift portion during a scanning period; a sensing circuit configured to generate a second signal for causing the gate driving signal to have a frame shift portion during a blanking period; and a random shift circuit electrically coupled to the scanning circuit and the sensing circuit respectively, and configured to generate the gate driving signal having the row shift portion and randomly having the frame shift portion based on the first signal and the second signal.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: April 5, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • Patent number: 11295667
    Abstract: Provided are a pixel structure, a display panel and a control method thereof. The pixel structure includes four sub-pixel units, wherein the i-th sub-pixel unit includes: an i-th element to be driven and an i-th drive circuit, 1?i?4, and the i-th drive circuit is respectively connected with an M-th data line and an N-th scanning line, and is configured to drive the i-th element to be driven according to a data signal of the M-th data line under control of the N-th scanning line, M = { 1 , 1 ? i ? 2 2 , 3 ? i ? 4 , N = { 1 , 2 ? i ? 3 2 , i ? ? is ? ? 1 ? ? or ? ? 4 .
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: April 5, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Song Meng, Can Yuan
  • Patent number: 11296162
    Abstract: An array substrate includes a base substrate (1); a driving transistor (2) on the base substrate (1); an insulating layer (3) on the driving transistor (2), the insulating layer (3) comprising a via hole above a first electrode (21) of the driving transistor (2); a conductive portion (4) on the insulating layer (3); and a light emitting device (6) on the conductive portion (4) and electrically connected to the conductive portion (4). The conductive portion (4) may be electrically connected to the first electrode (21) of the driving transistor (2) through the via hole. The light emitting device (6) may be above the via hole, and an orthographic projection of the light emitting device (6) on the base substrate (1) may cover an orthographic projection of the via hole on the base substrate (1).
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: April 5, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Patent number: 11296169
    Abstract: An array substrate, a display panel and a display device are provided. The array substrate includes a plurality of pixel units arranged in an array, each pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel, and each of the first, second and third sub-pixels includes a pixel circuit including a switching transistor, a driving transistor, a sensing transistor, a storage capacitor and a light-emitting device. The first sub-pixels, the second sub-pixels and the third sub-pixels included in each row of the array are controlled by four scanning lines, and at least one of the four scanning lines is shared by the row of the array and another row of the array adjacent to the row of the array. Each column of pixel units of the array are coupled to a same data line.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: April 5, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan