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: 11468810
    Abstract: A shift-register unit circuit (100) includes a first input sub-circuit (120) configured to receive a display-input signal from a display-input terminal (STU2, VDD, VGH) and input a display output-control signal to a first node (Q) based on the display-input signal during a display period of one cycle of displaying one frame of image. The shift-register unit circuit (100) also includes a second input sub-circuit (110) configured to receive a blank-input signal for charging a blank-control node (H), and configured to input a blank-output-control signal to the first node (Q) based on the blank-input signal during a blank period of the one cycle. The shift-register unit circuit (100) further includes an output sub-circuit (130) configured to output a hybrid signal controlled by the first node (Q). The second input sub-circuit (110) is also configured, before an end of the blank period, to receive a first blank-reset signal to reset the blank-control node (H).
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: October 11, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20220319393
    Abstract: Disclosed is a shift register including a first input sub-circuit, configured to receive a first input signal from a first input terminal and output a blanking output control signal to a first node in a blanking period of time of a frame; a second input sub-circuit, configured to receive a second input signal from a second input terminal and output a display output control signal to the first node in a display period of time of the frame; an output sub-circuit, configured to output a composite output signal via an output terminal under control of the first node, the composite output signal including a display output signal outputted in a display period of time and a blanking output signal outputted in a blanking period of time which are independent of each other.
    Type: Application
    Filed: June 21, 2022
    Publication date: October 6, 2022
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20220319433
    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: Application
    Filed: December 29, 2020
    Publication date: October 6, 2022
    Inventors: Zhidong YUAN, Yongqian LI, Can YUAN
  • Publication number: 20220320195
    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: Application
    Filed: April 28, 2022
    Publication date: October 6, 2022
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan, Meng Li
  • Publication number: 20220319392
    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: Application
    Filed: June 16, 2022
    Publication date: October 6, 2022
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20220310020
    Abstract: A shift register driving method includes: in a black insertion driving period, the black insertion input circuit, in response to a black insertion control signal, causing the output circuit to first output a first sense driving signal and a second sense driving signal, so that the control electrode of the switching transistor receives the first sense driving signal to turn on the switching transistor, the first electrode of the switching transistor receives a sensing data signal, and the control electrode of the sensing transistor receives the second sense driving signal to turn on the sensing transistor, and a second electrode of the sensing transistor outputs a pixel compensation signal, at the same time the sub-pixel stops emitting light; the output circuit outputs a black insertion driving signal, and the pixel circuit receives the black insertion driving signal to turn off the driving transistor, and the sub-pixel keeps not emitting light.
    Type: Application
    Filed: October 27, 2021
    Publication date: September 29, 2022
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20220309978
    Abstract: The present disclosure provides display apparatuses, gate drive circuits, shift register units and driving methods thereof. The shift register unit includes: an outputting module, configured to output a composite output signal under a control of a potential of a pull-up node; a pull-up module, configured to charge the pull-up node under a control of a display control signal terminal and charge the pull-up node under a control of a potential of a black insertion node; a first reset circuit configured to, under a control of the reset signal terminal and the potential of the black insertion node, control a voltage control node to communicate with the pull-up node; a current-limiting circuit, connected between the voltage control node and a first voltage terminal; and a charging module, configured to charge the voltage control node under the control of the potential of the pull-up node.
    Type: Application
    Filed: December 20, 2021
    Publication date: September 29, 2022
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20220310021
    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: Application
    Filed: June 13, 2022
    Publication date: September 29, 2022
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11455936
    Abstract: A shift register and a drive method therefor, and a gate drive circuit. The shift register includes: an input sub-circuit, a detection control sub-circuit, an output sub-circuit, a first reset sub-circuit, and a pull-down sub-circuit. The detection control sub-circuit is respectively connected to a random detection signal end (OE), a signal input end (INPUT), a first clock signal end (CLKA), a first reset end (RST1), and a pull-up node (PU), and is configured to provide a signal of the first clock signal end (CLKA) for the pull-up node (PU) under the control of the signal input end (INPUT), the random detection signal end (OE), the first clock signal end (CLKA), and the first reset end (RST1).
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: September 27, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11455956
    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 a banking output control signal to a first node in a blanking period of time of a frame; a second input sub-circuit, configured to receive a second input signal from a second input terminal and output a display output control signal to the first node in a display period of time of the frame; an output sub-circuit, configured to output a composite output signal via an output terminal under control of a first node, wherein the composite output signal includes a display output signal outputted in a display period of time and a blanking output signal outputted in a blanking period of time which are independent of each other.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: September 27, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20220302244
    Abstract: A display substrate, a manufacturing method thereof and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. The sub-pixels are arranged in a sub-pixel array in a first direction and a second direction, the first direction intersecting with the second direction. The display substrate further includes data lines extended in the first direction, and the data lines are connected in one-to-one correspondence with the sub-pixels in columns in each row of sub-pixels, so as to provide data signals respectively; the display substrate further includes auxiliary electrode lines extended in the first direction which are configured to be electrically connected with a second electrode of the light emitting element to provide a second power voltage; each of the auxiliary electrode lines is spaced from any one of the plurality of data lines by at least one column of sub-pixels.
    Type: Application
    Filed: November 29, 2019
    Publication date: September 22, 2022
    Inventors: Can YUAN, Yongqian LI, Meng LI, Zhidong YUAN, Dacheng ZHANG, Lang LIU
  • Patent number: 11450252
    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: Grant
    Filed: December 21, 2018
    Date of Patent: September 20, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11450267
    Abstract: Brightness compensation method and apparatus for pixel point are provided. The compensation method includes measurement processes of N times, N?2.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: September 20, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongxu Han, Tieshi Wang, Zhongyuan Wu, Yongqian Li, Pan Xu, Jinxia Hu
  • Patent number: 11444132
    Abstract: A display substrate, a manufacturing method thereof 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, a third 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: November 29, 2019
    Date of Patent: September 13, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Zhongyuan Wu, Yongqian Li, Can Yuan, Zhidong Yuan, Meng Li, Dacheng Zhang, Lang Liu
  • Patent number: 11443677
    Abstract: The present disclosure relates to a display method of a display panel. The display method may include obtaining original luminance of three single color subpixels in each of the pixel units based on an image to be displayed; obtaining luminance compensation values of the three single color subpixels that need to be color compensated at a time of obtaining the luminance of the mixed color subpixel as the first substitute luminance; calculating luminance of the mixed color produced by the three single color subpixels in the pixel unit respectively based on each of the luminance of the three single color subpixels after color compensation; and setting input luminance of the single color subpixel having the smallest luminance of the mixed color as 0, and obtaining actual luminance of the other single color subpixels and the mixed color subpixel.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: September 13, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Dongxu Han, Chi Zhang, Tieshi Wang, Zhongyuan Wu, Yongqian Li, Jinxia Hu
  • Publication number: 20220285476
    Abstract: Provided in the present disclosure are a display substrate and a preparation method therefor, and a display apparatus. The display substrate comprises a plurality of display units, each display unit comprising a display area and a transparent area, and the display area comprising a plurality of sub-pixels; each sub-pixel comprises a second metal layer and a third metal layer, the second metal layer comprising a first scanning line and a second scanning line defining a display row, the third metal layer comprising a first power source line, a second power source line, a compensation line, and a data line defining the plurality of sub-pixels; the first power source line, the second power source line, the compensation line, and the data line all comprise a vertical linear section and a horizontal polyline section.
    Type: Application
    Filed: April 12, 2021
    Publication date: September 8, 2022
    Inventors: Yongqian LI, Zhenhua QIU, Ying WANG, Meng LI, Dongxu HAN, Dacheng ZHANG, Shi SUN
  • Publication number: 20220284863
    Abstract: A shift register unit and a control method thereof, a gate driving circuit and a control method thereof, and a display apparatus are provided. The shift register unit includes: 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. The first shift register includes a first control circuit, a first output circuit and a second output circuit.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • 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
  • Patent number: 11436961
    Abstract: A shift register and a method of driving the same, a gate driving circuit, and a display panel are disclosed. The shift register includes a display control circuit coupled to a pull-up node, a first power supply and a first control terminal respectively; a cascade output circuit coupled to a second clock terminal, the pull-up node and a cascade output terminal; a sensing control circuit coupled to the pull-up node, the cascade output terminal, a second control terminal and a third control terminal respectively; and a signal output circuit coupled to the pull-up node, a first clock terminal and a signal output terminal.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: September 6, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • 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