Patents by Inventor Xuehuan Feng

Xuehuan Feng 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: 10998067
    Abstract: The embodiments of the present disclosure provide a shift register, a driving method thereof, a gate driving circuit, and a display panel. The shift register includes a plurality of shift register units and a first pulling-down circuit. Each shift register unit includes a first outputting circuit and a second outputting circuit. The first outputting circuit is coupled to a first outputting terminal of the shift register unit, and the second outputting circuit is coupled to a second outputting terminal of the shift register unit. The first outputting terminal of the shift register unit is coupled to the first pulling-down circuit via a first unidirectional isolating circuit, and the second outputting terminal of each shift register unit is coupled to the first pulling-down circuit via a second unidirectional isolating circuit, so that the first outputting terminal and the second outputting terminal of each shift register unit are isolated from each other.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: May 4, 2021
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 10998446
    Abstract: An array substrate, a manufacturing method thereof and a display panel are provided. The array substrate includes a base substrate, a plurality of thin film transistors and a first light shielding layer. The base substrate includes a first surface and a second surface respectively located on opposite sides of the base substrate. The plurality of thin film transistors are disposed on the first surface of the base substrate, and each of the plurality of thin film transistors includes an active layer. The first light shielding layer is disposed on the second surface of the base substrate. The first light shielding layer has at least one opening that overlaps with at least one thin film transistor in a direction perpendicular to the second surface of the base substrate to allow light to irradiate at least the active layer of at least one thin film transistor.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: May 4, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210082328
    Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are provided. The shift register unit includes a first input circuit, an output control circuit, and an output circuit. The first input circuit is configured to output a first input signal to a first node in response to a first control signal; the output control circuit is configured to output an output control signal to a second node under control of a level of the first node; and the output circuit includes an output terminal, and the output circuit is configured to output an output signal to the output terminal under control of a level of the second node.
    Type: Application
    Filed: July 10, 2019
    Publication date: March 18, 2021
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210074196
    Abstract: The present disclosure relates to the field of display technology and, in particular, to a gate driving structure, an array substrate, and a display device. The gate driving structure may include: a base substrate; a shift register formed on the base substrate, and including a plurality of thin film transistors and at least one capacitor, the capacitor being coupled to the thin film transistor; and a signal wiring group formed on the base substrate, and including a plurality of signal wirings spaced apart from each other, the signal wiring being coupled to the thin film transistor. An orthographic projection of the capacitor on the base substrate is at least partially overlapped with an orthographic projection of the signal wiring group on the base substrate.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 11, 2021
    Inventors: Xuehuan FENG, Pan XU
  • Publication number: 20210074210
    Abstract: A pixel driving circuit, array substrate, display device and method for driving the pixel driving circuit are provided, the circuit includes: a control terminal and a first terminal of a driving switch circuit are respectively coupled to a first terminal of a data input switch circuit and an anode of a light-emitting device, and two terminals of a storage capacitor are respectively coupled to the control terminal of the driving switch circuit and the anode of the light-emitting device, two terminals of an intrinsic capacitor are respectively coupled to a cathode and the anode of the light-emitting device, a first terminal and a second terminal of a reset switch circuit are respectively coupled to the anode and the cathode of the light-emitting device, a capacitance of the intrinsic capacitor is greater than or equal to a preset multiple of a capacitance of the storage capacitor.
    Type: Application
    Filed: April 3, 2020
    Publication date: March 11, 2021
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong YUAN, Taejin KIM, Yongqian LI, Lin SUN, Chao JIAO, Can YUAN, Zehua DING, Xuehuan FENG, Meng LI
  • Publication number: 20210065630
    Abstract: The present application provides a shift register, a gate driving circuit, a display device and a gate driving method. The shift register includes an input circuit, an inverter circuit and an output circuit. The input circuit, the inverter circuit and the output circuit are coupled to a pull-up node, and the output circuit and the inverter circuit are coupled to a pull-down node. The input circuit is configured to control a voltage at the pull-up node in response to an input signal. The inverter circuit is configured to invert the voltage at the pull-up node and output the inverted voltage to the pull-down node. The output circuit is configured to output a multi-pulse signal within a duration of one frame under control of the voltage at the pull-up node and a voltage at the pull-down node.
    Type: Application
    Filed: July 31, 2019
    Publication date: March 4, 2021
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20210065599
    Abstract: A shift register unit, a method for driving a shift register unit, a gate drive circuit, and a display device are provided. The shift register unit includes a display circuit, and the display circuit is configured to provide a drive scanning signal to a corresponding gate line in a display phase, and the display circuit includes a first control circuit and a first bias control circuit. The first control circuit is configured to perform noise reduction on an output terminal of the display circuit under control of a level of the first node. The first bias control circuit is configured to transmit a first reference voltage signal provided by the first reference voltage signal terminal to the first node under control of a first clock signal provided by the first clock signal terminal, thereby turning off the first control circuit by controlling the level of the first node in a non-display phase.
    Type: Application
    Filed: August 20, 2019
    Publication date: March 4, 2021
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Xuehuan Feng
  • Publication number: 20210065829
    Abstract: The embodiments of the present disclosure provide a shift register, a driving method thereof, a gate driving circuit, and a display panel. The shift register includes a plurality of shift register units and a first pulling-down circuit. Each shift register unit includes a first outputting circuit and a second outputting circuit. The first outputting circuit is coupled to a first outputting terminal of the shift register unit, and the second outputting circuit is coupled to a second outputting terminal of the shift register unit. The first outputting terminal of the shift register unit is coupled to the first pulling-down circuit via a first unidirectional isolating circuit, and the second outputting terminal of each shift register unit is coupled to the first pulling-down circuit via a second unidirectional isolating circuit, so that the first outputting terminal and the second outputting terminal of each shift register unit are isolated from each other.
    Type: Application
    Filed: March 6, 2020
    Publication date: March 4, 2021
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210065603
    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: Application
    Filed: August 28, 2020
    Publication date: March 4, 2021
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 10923208
    Abstract: The present disclosure relates to the field of display technologies and, more particularly, to a shift register unit, a shift register circuit, and a display device. The shift register unit includes a detection input circuit, a display input circuit, an inverter circuit, a pull-down circuit, a reset circuit, and a first output circuit. In a working process of the shift register unit, the display input circuit and the detection input circuit share the inverter circuit, the pull-down circuit, the reset circuit, and the first output circuit.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: February 16, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 10923008
    Abstract: A shift register includes a pull-up control circuit, at least two output circuits, a pull-down control circuit, at least two pull-down circuits, and at least two output signal terminals. The pull-up control circuit, the at least two output circuits, and the pull-down control circuit are respectively coupled to the pull-up node; the pull-down control circuit, the at least two pull-down circuits, and the pull-up control circuit are respectively coupled to the pull-down node. Each of the at least two output circuits is coupled to a corresponding one of the at least two output signal terminals; each of the at least two pull-down circuits is coupled to a corresponding one of the at least two output signal terminals; and each of the at least two output signal terminals is coupled to a corresponding one of at least two gate lines.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: February 16, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210043137
    Abstract: Disclosed is a display substrate and a display apparatus, the display substrate includes a display area and a peripheral area, wherein the display substrate includes M groups of shift registers and N groups of clock signal lines in the peripheral area, M is greater than or equal to N, M and N are positive integers, each group of shift registers is connected with a group of gate lines positioned in the display area, and adjacent N groups of shift registers are connected with N groups of clock signal lines one by one correspondingly. The N groups of clock signal lines are disposed side by side along a first direction, and configured to make, through an adjustment of a wiring sequence, an impedance difference between two groups of clock signal lines connected to any two adjacent groups of shift registers be less than or equal to an impedance threshold value.
    Type: Application
    Filed: June 29, 2020
    Publication date: February 11, 2021
    Inventors: Xuehuan FENG, Yongqian LI, Yubao KONG
  • Publication number: 20210035501
    Abstract: A display panel includes a plurality of pixel driving circuits and a plurality of sense lines. The pixel driving circuits are capable of being divided into a plurality of rows of pixel driving circuits each arranged in a first direction and divided into a plurality of columns of pixel driving circuit each arranged in a second direction intersected with the first direction. Each pixel driving circuit includes a detection transistor. The sense lines are arranged at intervals and extending along the second direction, and are configured to provide reference voltage signals to the plurality of pixel driving circuits. Each detection transistor is electrically connected to one of the plurality of sense lines, and in pixel driving circuits in a same column, detection transistors in any two adjacent rows are electrically connected to different sense lines.
    Type: Application
    Filed: April 24, 2020
    Publication date: February 4, 2021
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 10902932
    Abstract: A gate drive circuit, a method of driving a gate drive circuit, a display device, and a method of manufacturing an array substrate are provided. The gate drive circuit includes a repair signal line, a plurality of output signal lines, and a plurality of shift register units that are cascaded. The repair signal line is configured to transmit the repair signal to the first output signal line. The plurality of shift register units include a first shift register unit and a plurality of second shift register units, and the plurality of second shift register units are correspondingly connected to the second output signal lines. The first output signal line corresponds to but is in a state of being disconnected to the first shift register unit, and the first output signal line and the plurality of second output signal lines are configured to output a set of shift pulse signals.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: January 26, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li, Meng Li
  • Patent number: 10872568
    Abstract: A pixel circuit, a driving method and a display device. The pixel circuit includes a light emitting unit; a drive transistor configured to drive the light emitting unit to emit light to display an image frame; and a control circuit configured to control the drive transistor according to signals on control lines. The method of controlling includes: resetting, in a reset stage of an image frame, a voltage of the first electrode of the drive transistor by applying a reset voltage, and sensing, in a sense stage, a threshold voltage of the drive transistor by applying a reference voltage. The control circuit is further configured to control, in an offset elimination stage at the beginning of the image frame and prior to the reset stage, the drive transistor to be switched off, which was in an ON state at the end of a previous image frame.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: December 22, 2020
    Assignees: HEFIE XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Meng Li, Can Yuan, Haixia Xu, Jun Wang, Xuehuan Feng
  • Publication number: 20200357342
    Abstract: Provided is shift register including signal input circuits, reset circuits and control and output circuit. Operation cycle of shift register is divided into phases non-overlapping in time, each phase includes at least first and second sub-phases. Signal input circuits are each configured to apply signal provided by respective signal input terminal to pull-up control terminal in first sub-phase of respective phase in response to signal of respective input control terminal. The reset circuits are each configured to apply first power supply signal provided by first power supply terminal to the pull-up control terminal in second sub-phase of respective phase in response to signal of respective reset control terminal. The input circuits and the reset circuits share the control and output circuit outputting a signal based on signal of the pull-up control terminal, the waveform of the signal being superposition of waveforms corresponding to signals provided by the signal input circuits.
    Type: Application
    Filed: November 27, 2019
    Publication date: November 12, 2020
    Inventors: Xuehuan FENG, Yongqian LI
  • Patent number: 10825539
    Abstract: Disclosed are a shift register unit, a gate driving circuit, a display apparatus and a driving method. The shift register unit includes: 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 in a display period of one frame according to the display input signal; a second input sub-circuit, configured to receive a random input signal in the display period of one frame, and input a blanking output control signal to the first node in a blanking period of one frame according to the random input signal; and an output sub-circuit, configured to output a composite output signal via an output terminal under the control of the first node.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: November 3, 2020
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 10777128
    Abstract: The present disclosure discloses a pixel circuit, a display apparatus and a dual-gate driving transistor. The pixel circuit comprises a dual-gate driving transistor having a drain electrically connected to a first power supply terminal; a threshold voltage compensation unit electrically connected to a data terminal, a first control terminal, a first gate of the dual-gate driving transistor, and a source of the dual-gate driving transistor respectively; a mobility compensation unit electrically connected to a sensing signal terminal, a second control terminal, and the source of the dual-gate driving transistor respectively; and a light emitting control unit electrically connected to the data terminal, a third control terminal, a second gate of the dual-gate driving transistor, the source of the dual-gate driving transistor, and a light emitting device respectively.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 15, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xuehuan Feng, Zhidong Yuan, Zhenfei Cai, Meng Li, Can Yuan
  • Patent number: 10734613
    Abstract: A method for manufacturing an organic light-emitting diode substrate is provided and includes: on a base substrate with a black matrix pattern, forming a conductive layer covering the black matrix pattern and a photoresist pattern that partially stacks on the conductive layer, through one patterning process by taking the black matrix pattern as a mask plate; and removing the photoresist pattern and portions of the conductive layer that stack on the photoresist pattern, thereby forming a patterned conductive layer.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: August 4, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xing Zhang, Wei Li, Quanhu Li, Xuehuan Feng, Jianye Zhang
  • Patent number: 10714931
    Abstract: The present disclosure relates to an electrostatic protection circuit, an array substrate and a display device, comprising: a first electrostatic discharge circuit and a second electrostatic discharge circuit; wherein the first electrostatic discharge circuit is configured to, in case that an electrostatic voltage formed on the first signal wire is greater than or equal to a first preset turn-on voltage, transmit the electrostatic voltage on the first signal wire to the second signal wire. In case that the electrostatic voltage formed on the first signal wire is greater than or equal to a second preset turn-on voltage, the first electrostatic discharge circuit couples the voltage on the first signal wire to a first node, so that the second electrostatic discharge circuit transmits the electrostatic voltage on the first signal wire to the second signal wire.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: July 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhidong Yuan, Can Yuan, Yongqian Li, Xuehuan Feng