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: 12039949
    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 input circuit, a blanking control circuit, a blanking coupling circuit, a display input circuit and an output circuit. The blanking input circuit is configured to charge a control node in response to a compensation selection control signal, and to maintain a level of the control node. The blanking control circuit is configured to charge a first node, by using a first clock signal, under control of the level of the control node and the first clock signal. The blanking coupling circuit is electrically connected to the control node, and is configured to control, by coupling, the level of the control node in response to the first clock signal.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: July 16, 2024
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 12040029
    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: Grant
    Filed: May 26, 2021
    Date of Patent: July 16, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Patent number: 12041828
    Abstract: A display substrate, manufacturing method thereof, and display device. The display substrate comprises: a substrate, gate line, data line, power connection line and multiple sub-pixels on the substrate, the display substrate has defective points formed by short-circuiting of the gate line and data line, and the gate line forming defective points is a defective gate line; the data line forming defective points is a defective data line; the power connection line is arranged on the same layer as gate electrodes of multiple transistors; the defective gate line and defective power connection line are disconnected, the display substrate further comprises: a repair line disposed on one side, away from the substrate, of the source drain electrode of multiple transistors, the repair line is respectively connected to the partially disconnected defective gate line and partially disconnected defective power connection line, and is used for transmitting scanning signals to repair the display substrate.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: July 16, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Publication number: 20240233644
    Abstract: A display substrate, including: a plurality of partition control signal lines disposed on a base substrate; and a plurality of sub-pixels disposed on the base substrate, at least one of the sub-pixels includes a pixel circuit and a light emitting device. The pixel circuit includes a switch transistor, a first partition control transistor, a drive transistor and a first initialization transistor. The first partition control transistor is electrically connected to the switch transistor, the first initialization transistor, the drive transistor and at least one partition control signal line. The first partition control transistor is configured to: in response to a partition control signal on the partition control signal line, selectively transmit a received first initialization signal to a gate electrode of the drive transistor in an initialization phase, and selectively transmit a received data signal to the gate electrode of the drive transistor in a data writing phase.
    Type: Application
    Filed: September 30, 2022
    Publication date: July 11, 2024
    Inventors: Liu Wu, Can Yuan, Zhidong Yuan, Cheng Xu, Luke Ding, Yongqian Li, Xiuting Liu
  • Publication number: 20240233650
    Abstract: A light-emitting control shift register includes an input circuit, a pulse width adjustment circuit, a pull-up circuit, a pull-down control circuit and a pull-down circuit. The input circuit is configured to output a signal of a first signal input terminal. The pulse width adjustment circuit is configured to transmit the signal output from the input circuit to a pull-up node, and is further configured to output a signal of a second clock signal terminal to the pull-up node. The pull-up circuit is configured to output a voltage of a first voltage terminal to a signal output terminal. The pull-down control circuit is configured to output the voltage of the first voltage terminal, and is further configured to output a voltage of a second voltage terminal. The pull-down circuit is configured to pull down a voltage of the signal output terminal to the voltage of the second voltage terminal.
    Type: Application
    Filed: November 8, 2021
    Publication date: July 11, 2024
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong YUAN, Yongqian LI, Pan XU, Can YUAN
  • Patent number: 12027099
    Abstract: A shift-register unit includes a first circuit including a first input circuit coupled via a first node to a first output circuit, and a second circuit including a second input circuit coupled via a second node to a second output circuit. The first input circuit is configured to control a voltage level of the first node in response to a first input signal. The first output circuit is configured to output a shift-register signal and a first output signal in response to the voltage level of the first node. The second input circuit is configured to control a voltage level of the second node in response to the first input signal. The second output circuit is configured to output a second output signal in response to the voltage level of the second node. The first input circuit and the second input circuit have a same circuit structure.
    Type: Grant
    Filed: May 30, 2023
    Date of Patent: July 2, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li, Xing Zhang
  • Publication number: 20240215422
    Abstract: A display panel, and a test method thereof, a display apparatus, each subpixel of the pixel array of the display panel includes a pixel circuit, a first signal line configured to provide a scanning signal to the pixel circuit, a scan driver circuit configured to provide the scanning signal to the pixel circuit and includes a shift register and a clock signal line in the display area; a test circuit board in the non-display area and including a test pad; and a test lead in the non-display area and electrically connected with the test pad. The first signal line includes a first part in the display area and a second part in the non-display area, the first part extends substantially along the first direction.
    Type: Application
    Filed: September 28, 2021
    Publication date: June 27, 2024
    Inventors: Zhidong YUAN, Pan XU, Yongqian LI, Can YUAN
  • Publication number: 20240212623
    Abstract: A scan driving circuit includes shift registers and clock signal lines. A shift register includes: an output circuit electrically connected to a scan input signal terminal and a pull-up node; a black frame insertion circuit electrically connected to a first clock signal terminal, a black frame insertion input signal terminal, a first voltage signal terminal, a second clock signal terminal and the pull-up node; and an output circuit electrically connected to the pull-up node, a third clock signal terminal, a shift signal terminal, a fourth clock signal terminal and a first output signal terminal. The shift registers include first shift registers and second shift registers. Third and fourth clock signal terminals of a first shift register are electrically connected to a same clock signal line. Third and fourth clock signal terminals of a second shift register are electrically connected to different clock signal lines.
    Type: Application
    Filed: November 9, 2021
    Publication date: June 27, 2024
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 12022713
    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 signal 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 signal line structure of the plurality of signal 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, and the signal 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: April 28, 2022
    Date of Patent: June 25, 2024
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan, Meng Li
  • Publication number: 20240203357
    Abstract: A display panel has a display area and a fan-out region. The display panel includes: a substrate; a scan driving circuit including shift registers and clock signal lines, sub-pixels and signal transmission lines that are located in the display area; and a power supply voltage bus and connection lines that are located in the fan-out region. The sub-pixels are arranged in rows and columns, sub-pixels in a column are arranged along a second direction. A signal transmission line is electrically connected to column(s) of sub-pixels. The connection lines include first connection sub-lines, second connection sub-lines and third connection sub-lines that extend along the second direction and are located away from the sub-pixels. A first connection sub-line, a second connection sub-line and a third connection sub-line are electrically connected to the signal transmission line, the power supply voltage bus, and a clock signal line, respectively.
    Type: Application
    Filed: April 1, 2021
    Publication date: June 20, 2024
    Inventors: Xuehuan FENG, Yongqian LI, Pan XU
  • Patent number: 12016219
    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: Grant
    Filed: May 19, 2020
    Date of Patent: June 18, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Dacheng Zhang, Yongqian Li, Lang Liu, Zhongyuan Wu, Can Yuan, Meng Li
  • Patent number: 12014668
    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; and the first input-output unit includes a first leakage preventing structure, the first leakage preventing structure is electrically connected to the first pull-up node and a first leakage preventing node respectively, and the leakage preventing structure is configured to control a level of the first leakage preventing node under the control of the level of the first pull-up node to prevent the first pull-up node from leaking.
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: June 18, 2024
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20240194149
    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: February 19, 2024
    Publication date: June 13, 2024
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 12008974
    Abstract: A shift register circuit includes an input sub-circuit, an output sub-circuit and a control sub-circuit. The input sub-circuit is coupled to a first input signal terminal and a pull-up node, and configured to, under control of a first input signal, transmit the first input signal to the pull-up node. The output sub-circuit is at least coupled to the pull-up node, a first clock signal terminal and a first signal output terminal, and configured to transmit a first clock signal to the first signal output terminal under control of a voltage at the pull-up node. The control sub-circuit is coupled to at least one first reference node, at least one first control signal terminal and the pull-up node, and configured to transmit a voltage at a first reference node to the pull-up node under control of a first control signal.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: June 11, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20240188349
    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: August 25, 2021
    Publication date: June 6, 2024
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqian LI, Can YUAN, Xuehuan FENG
  • Publication number: 20240185793
    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: November 18, 2022
    Publication date: June 6, 2024
    Inventors: Xuehuan FENG, Dacheng ZHANG, Yongqian LI, Mingming XIE
  • Publication number: 20240185795
    Abstract: A display substrate and a display device are provided. The display substrate includes: a base substrate; a plurality of pixels; and a light emitting control line and a first power supply line which are electrically connected to a light emitting control circuit of the pixel. The light emitting control circuits of pixels located in two adjacent rows share the same light emitting control line. The light emitting control circuit includes a light emitting control transistor, the gate of the light-emitting control transistor is electrically connected to the light emitting control line, one of the first electrode and the second electrode of the light emitting control transistor is connected to the first power supply line, and the first power supply line extends in parallel to the light emitting control line.
    Type: Application
    Filed: July 8, 2021
    Publication date: June 6, 2024
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqian Li, Can Yuan
  • Publication number: 20240177663
    Abstract: A display substrate and a display panel are provided. The display substrate includes: a base substrate; and a plurality of sub-pixels. Each sub-pixel includes a light-emitting element and a pixel circuit; the pixel circuit includes a driving circuit, a data writing circuit, a first control circuit, a second control circuit, and a light-emitting control circuit; the driving circuit is configured to control the driving current flowing through the light-emitting element; the light-emitting control circuit is configured to apply the driving current to the light-emitting element; the first control circuit is configured to write a reference voltage into the driving circuit; the second control circuit is configured to write an initial voltage into the first electrode of the light-emitting element; and orthographic projections of at least part of pixel circuits of every two adjacent sub-pixels in a same row of sub-pixels on the base substrate are mirror-symmetrical.
    Type: Application
    Filed: July 9, 2021
    Publication date: May 30, 2024
    Inventors: Yongqian LI, Can YUAN, Zhongyuan WU
  • Publication number: 20240179968
    Abstract: A display substrate includes: a substrate and a plurality of subpixels arranged on the substrate, the plurality of subpixels are arranged in an array; the subpixel includes a subpixel driving circuit and a light emitting element, and the subpixel driving circuit includes a driving sub-circuit and a light emitting control sub-circuit coupled to each other; the light emitting element includes an anode pattern; the plurality of subpixels are divided into a plurality of groups of subpixels, each group of subpixels includes two subpixels arranged along a first direction, and two subpixel driving circuits included in the two subpixels share a same light emitting control sub-circuit, the light emitting control sub-circuit is configured to respectively control the driving sub-circuits in the two subpixels to write a driving signal to the anode pattern; the subpixel further includes a data line including a part extending along the first direction.
    Type: Application
    Filed: July 9, 2021
    Publication date: May 30, 2024
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can YUAN, Yongqian LI, Pan XU, Zhidong YUAN, Dacheng ZHANG
  • Publication number: 20240172480
    Abstract: Provided is a display substrate and a manufacturing method therefor, and a display apparatus. The display substrate includes multiple sub-pixels, at least one sub-pixel includes a drive circuit layer disposed on the substrate, the drive circuit layer includes a ring storage capacitor constituting a pixel drive circuit; the ring storage capacitor includes a first electrode plate and a second electrode plate, wherein, the first electrode plate includes a first housing surrounding at least one first opening and the second electrode plate includes a second housing surrounding at least one second opening; an orthographic projection of the first housing on the substrate at least partially overlaps an orthographic projection of the second housing on the substrate, and the first housing and the second housing form a capacitor housing around at least one capacitor opening.
    Type: Application
    Filed: July 12, 2021
    Publication date: May 23, 2024
    Inventors: Can YUAN, Yongqian LI, Maoning ZHANG, Chao JIAO, Zhidong YUAN, Dacheng ZHANG