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: 20230006023
    Abstract: Provided are a display substrate and a display device. The display substrate includes a base substrate, and gate lines extending in a first direction, data lines extending in a second direction and pixel units that are on the base substrate, the first direction intersecting the second direction; each pixel unit including sub-pixels, each sub-pixel including a pixel circuit; the pixel circuit including at least a switching transistor, a drive transistor, a sensing transistor, and a storage capacitor; for each pixel circuit, the switching transistor, the drive transistor, and the sensing transistor therein are all on a same side of the storage capacitor; the switching transistor is at an intersection of the gate line and the data line connected thereto, and the switching transistor is adjacent to the sensing transistor in the first direction and adjacent to the drive transistor in the second direction.
    Type: Application
    Filed: March 12, 2021
    Publication date: January 5, 2023
    Inventors: Can YUAN, Meng LI, Yongqian LI, Zhidong YUAN, Dacheng ZHANG
  • Patent number: 11545093
    Abstract: A shift register, a gate driving circuit and a gate driving method are provided. The shift register includes: a display pre-charging reset circuit, a display noise reduction circuit and an output circuit, the output circuit is provided with at least one signal output terminal, and includes at least one output sub-circuit; the display pre-charging reset circuit is configured to write a first scanning voltage into a pull-up node in response to a control of a first signal input terminal; and write a second scanning voltage into the pull-up node in response to a control of a second signal input terminal; the display noise reduction circuit is configured to write the second scanning voltage into a pull-down node in response to the control of the first signal input terminal; and write the first scanning voltage into the pull-down node in response to the control of the second signal input terminal.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: January 3, 2023
    Assignees: Hefei BOE Joint Technology Co., Ltd., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11545089
    Abstract: A pixel driving circuit, a display device and an electronic device are provided. The pixel driving circuit includes: a first sub-pixel driving circuit, a second sub-pixel driving circuit, a third sub-pixel driving circuit, and a fourth sub-pixel driving circuit sequentially arranged in a first direction; a detection line; a first power line extending in the second direction; and a second power line extending in the second direction, wherein one of the first power line and the second power line is provided on a side of the second sub-pixel driving circuit away from the third sub-pixel driving circuit, and the other of the first power line and the second power line is provided on a side of the third sub-pixel driving circuit away from the second sub-pixel driving circuit.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 3, 2023
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Meng Li, Yongqian Li, Chen Xu, Dacheng Zhang, Jingquan Wang, Shi Sun
  • Patent number: 11538416
    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: Grant
    Filed: April 7, 2020
    Date of Patent: December 27, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11539023
    Abstract: A display substrate and a manufacturing method thereof, and a display panel are provided. The display substrate includes a base substrate having a display region and a peripheral region adjacent to the display region, the peripheral region being provided therein with a gate driver-on-array circuit including a plurality of transistors and capacitors, all of the transistors are provided in a transistor region, at least a part of the plurality of capacitors are provided in a capacitor region, and the capacitor region is located on a side of the transistor region distal to the display region; and an encapsulation structure for encapsulating the display region and the transistor region together; the peripheral region further including a sealing region for arranging a sealing structure therein, the capacitor region is located in the sealing region, and the sealing region is provided on a side of the encapsulation structure distal to the display region.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: December 27, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan, Enming Xie
  • Publication number: 20220406253
    Abstract: A display apparatus, a display panel, and a driving method thereof, and a method of detecting a pixel circuit are described. The display panel of the present disclosure includes a pixel unit and a detection apparatus, and the pixel unit includes a pixel circuit and a light-emitting element. The pixel circuit includes a first transistor, a second transistor, a driving transistor, and a storage capacitor. The detection device is configured to: turn off the first transistor and the second transistor, and detect an amount of current leakage of the driving transistor leaked through the sensing line to obtain a first current leakage parameter; detect a first characteristic parameter of the driving transistor to obtain a first reference characteristic parameter; and determine a first target characteristic parameter according to the first current leakage parameter and the first reference characteristic parameter.
    Type: Application
    Filed: December 23, 2020
    Publication date: December 22, 2022
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN
  • Publication number: 20220406252
    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: Application
    Filed: December 23, 2020
    Publication date: December 22, 2022
    Inventors: Xuehuan FENG, Yongqian LI, Pan XU, Zhongyuan WU
  • Patent number: 11532278
    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: Grant
    Filed: October 27, 2021
    Date of Patent: December 20, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20220398982
    Abstract: An array substrate includes: a substrate, at least one gate driving circuit and at least one clock signal line that are located on a same side of the substrate. The gate driving circuit includes a plurality of cascaded shift registers located in different rows, the plurality of shift registers are divided into at least two groups of shift registers, each group of shift registers includes at least one shift register, located in a same column. A gate driving circuit in the at least one gate driving circuit corresponds to at least one clock signal line. The clock signal line includes a main body transmission section configured to transmit a clock signal, and at least two branch transmission sections connected to the main body transmission section. Each branch transmission section is connected to a clock signal input terminal of each shift register in a respective group of shift registers.
    Type: Application
    Filed: December 26, 2020
    Publication date: December 15, 2022
    Inventors: Zhidong YUAN, Pan XU, Can YUAN, Yongqian LI, Zhongyuan WU
  • Publication number: 20220398976
    Abstract: A 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, controls 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 controls 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 17, 2022
    Publication date: December 15, 2022
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 11519043
    Abstract: A roller treatment process and a treatment device suitable for a total-amount steel slag treatment. The treatment process is: firstly, a slag tank (2) with the molten slag is tightly held by a slag tank tilting mechanism and moved to a slag inlet position, the slag tank (2) is tilted to pour the molten slag with good fluidity into a rotary roller device (5) through a feeding chute (51), so that a roller treatment is achieved; secondly, when the steel slag (3) without fluidity in the slag tank (2) cannot flow out, a slag removal machine (4) is used for pushing the high-viscosity slag or the solid slag into the roller device (5); and thirdly, the slag tank (2) is reversed by a large angle tilting to make the slag at the bottom of the tank drop into the roller device (5), so that the total-amount steel slag treatment of the same roller device (5) is achieved.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: December 6, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Yongqian Li, Yongli Xiao, Yin Liu, Youping Zhang, Mengqin Xie
  • Publication number: 20220384558
    Abstract: The present disclosure provides a display substrate and a display apparatus. The display substrate has a display region, and the display substrate includes a base substrate and a plurality of gate lines and a plurality of data lines on the base substrate; the plurality of gate lines and the plurality of data lines are arranged to cross each other to define a plurality of pixel regions, and a pixel unit is arranged in a pixel region of the plurality of pixel regions; each pixel unit includes a thin-film transistor and a light-emitting device in the display region; the display substrate further comprises a plurality of fan-out traces in the display region, wherein each fan-out trace of the plurality of fan-out traces is electrically connected to a data line corresponding to the fan-out trace, and is arranged in a different layer from the date lines and the gate lines.
    Type: Application
    Filed: June 15, 2021
    Publication date: December 1, 2022
    Inventors: Pan XU, Dacheng ZHANG, Yicheng LIN, Yongqian LI
  • Publication number: 20220383792
    Abstract: The present application discloses a shift-register unit circuit including a first input sub-circuit configured to receive a display-input signal from a display-input terminal and input a display output-control signal to a first node based on the display-input signal during a display period of one cycle of displaying one frame of image. The shift-register unit circuit also includes a second input sub-circuit configured to receive a blank-input signal for charging a blank-control node, and configured to input a blank-output-control signal to the first node based on the blank-input signal during a blank period of the one cycle. The shift-register unit circuit further includes an output sub-circuit configured to output a hybrid signal controlled by the first node. The second input sub-circuit is also configured, before an end of the blank period, to receive a first blank-reset signal to reset the blank-control node.
    Type: Application
    Filed: August 11, 2022
    Publication date: December 1, 2022
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11514838
    Abstract: The present disclosure relates to a gate drive circuit. The gate drive circuit includes: cascaded GOA units, first clock signal lines, second clock signal lines, connecting lines and electrostatic protection sub-circuits. The first clock signal lines are used to provide various clock signals to the GOA units. The second clock signal lines are used to, when any of the clock signal lines is broken, replace the broken clock signal line to transmit a corresponding clock signal. The electrostatic protection sub-circuits are electrically connected to corresponding first clock signal lines or corresponding second clock signal lines through the connecting lines. Orthographic projections of the connecting lines on a plane where corresponding first clock signal lines or corresponding second clock signal lines are located intersect with the corresponding first clock signal lines and the corresponding second clock signal lines, respectively.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: November 29, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20220375383
    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: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11508297
    Abstract: A shift register circuit is provided. The shift register circuit includes an input sub-circuit, an output sub-circuit, a first control sub-circuit and a second control sub-circuit. The input sub-circuit is connected to a first signal input terminal, a second signal input terminal and a first node. The output sub-circuit is connected to the first node, a first clock signal terminal and a first output terminal. The first control sub-circuit is connected to a first power supply voltage terminal, a second power supply voltage terminal, the first node and a second node. The second control sub-circuit is connected to the second power supply voltage terminal, a third power supply voltage terminal, the second node and a third node, and the third node is further connected to the input sub-circuit.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: November 22, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11507122
    Abstract: There is provided a digital voltage regulator, which includes a first comparator, a circuit switching circuit, a voltage regulation control circuit, a first transistor array and a second transistor array; a width-to-length ratio of any one of transistors in the first transistor array is larger than that of any one of transistors in the second transistor array; the first comparator outputs a comparison result between a first reference voltage and an output voltage; the voltage regulation control circuit generates a voltage regulating signal according to the comparison result under control of a clock signal; the circuit switching circuit controls one of the first transistor array and the second transistor array according to a comparison result between the output voltage and a second reference voltage and a comparison result between the output voltage and a third reference voltage to regulate the output voltage based on the voltage regulating signal.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: November 22, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11508295
    Abstract: An array substrate and a manufacturing method thereof, and a display device are provided. The array substrate includes: a base substrate, and a GOA circuit, a source electrode IC and PLG wires arranged on the base substrate, and the PLG wires connect the GOA circuit with the source electrode IC. The GOA circuit transmits a GOA signal, and the GOA signal comprises a cascade signal and a non-cascade signal. The PLG wires comprise a first PLG wire group and at least one second PLG wire group, the first PLG wire group transmits the cascade signal, the second PLG wire group transmits the non-cascade signal, a line width of the first PLG wire group is smaller than that of the second PLG wire group, and the first PLG wire group is located at a side of the second PLG wire group distal to an active area of the base substrate.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: November 22, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Zhongyuan Wu, Yongqian Li, Can Yuan, Xuehuan Feng, Zhidong Yuan
  • Publication number: 20220359623
    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: Application
    Filed: July 20, 2022
    Publication date: November 10, 2022
    Inventors: Zhongyuan WU, Yongqian LI, Can YUAN, Zhidong YUAN, Meng LI, Dacheng ZHANG, Lang LIU
  • Publication number: 20220359847
    Abstract: The present disclosure provides a display substrate, a manufacturing method thereof, and a display device. The display substrate includes a substrate, and a compensation electrode, an auxiliary electrode, a light-emitting functional layer, and a cathode layer arranged on one side of the substrate. The auxiliary electrode is arranged on one side of the compensation electrode away from the substrate, and coupled to the compensation electrode. A first notch is formed in a side surface of the auxiliary electrode, and at least a part of the first notch extends in a direction parallel to the substrate. The light-emitting functional layer is arranged on one side of the auxiliary electrode away from the substrate, and interrupted at the first notch. The cathode layer is arranged on one side of the light-emitting functional layer away from the substrate, and coupled to the auxiliary electrode at the first notch.
    Type: Application
    Filed: April 21, 2021
    Publication date: November 10, 2022
    Inventors: Can YUAN, Yongqian LI, Bin ZHOU, Ning LIU, Zhidong YUAN