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: 20210358366
    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: Application
    Filed: June 28, 2019
    Publication date: November 18, 2021
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210358365
    Abstract: A shift register unit and a driving method thereof, a gate driving circuit, and a display device are provided. A shift register unit includes a blanking input circuit, a display input circuit, an output circuit; the blanking input circuit is configured to input a blanking control signal to a first node during a blanking period in response to a blanking input signal, the blanking input circuit includes a charging sub-circuit, the charging sub-circuit is configured to input the blanking control signal to a control node in response to a first compensation control signal and a second compensation control signal, the display input circuit is configured to input a display control signal to the first node during a display period in response to a display input signal; the output circuit is configured to output a composite output signal to an output end under control of a level of the first node.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 18, 2021
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11176871
    Abstract: A shift register unit, a driving method thereof, a gate driving circuit and a display device. The shift register unit includes a blanking input circuit, a display input circuit, an output circuit, a first control circuit and a second control circuit. The blanking input circuit inputs a blanking pull-up signal to a first node according to a blanking input signal; the display input circuit inputs a display pull-up signal to the first node in response to a display input signal; the output circuit outputs an composite output signal to an output terminal under the control of the first node; the first control circuit controls a level of a second node under the control of the first node; and the second control circuit controls the level of the second node in response to a blanking pull-down control signal.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: November 16, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210347665
    Abstract: A method and apparatus for direct drying of inorganic sludge with a drum drawing process, comprising the following steps: 1) drum mixed drying of slag and sludge: respectively conveying the slag and sludge into a drum (1) in proportion, completing mixing, heat exchange, dehydration, cooling and crushing of the slag and sludge under the rolling action of the drum (1) and a steel ball to achieve cooling, crushing and drying of the slag and sludge, and directly discharging the obtained mixture; 2) slag and sludge separation: separating the steel slag and dry sludge in a manner of combining screening and rotary separation; 3) tail gas treatment: treating dusts, sulfides and organic compounds in tail gas generated by the dry sludge by using wet alkali washing and activated carbon adsorption, and discharging the treated tail gas; and 4) tailing sludge treatment: generating steam and dusts in the drum treatment of the slag and sludge, allowing dusts to enter a tail gas treatment device (4) with steam, aggregating th
    Type: Application
    Filed: September 26, 2019
    Publication date: November 11, 2021
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Yingjie WANG, Yongli XIAO, Yongqian LI
  • Patent number: 11170677
    Abstract: The present application discloses a clock signal test circuit, a control method thereof, a display panel and a test device. The clock signal test circuit comprises: N clock control signal lines; M control sub-circuits, each of which includes at least two control branches, wherein each of the control branches is configured to output a signal input from the input signal line to the corresponding output signal line under the control of a signal input from the corresponding clock control signal line; and a pull-down sub-circuit including N pull-down branches, wherein each of the pull-down branches is configured to output the first power supply voltage to the corresponding output signal line under the control of the signal input from the corresponding clock control signal line.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 9, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Yongqian Li
  • Patent number: 11170707
    Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method. The shift register unit includes a blanking input circuit, a display input circuit, an output circuit, and a compensation selection circuit. The blanking input circuit inputs a blanking input signal to a control node, and a blanking signal to a first node in a blanking period of a frame; the display input circuit inputs a display signal to the first node in a display period of the frame in response to a display input signal; the output circuit outputs, under the control of a level of the first node, a composite output signal to an output terminal; the compensation selection circuit is electrically coupled to the output terminal, and charges, in response to a compensation selection control signal, the control node using the composite output signal.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: November 9, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210343357
    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: Application
    Filed: November 25, 2020
    Publication date: November 4, 2021
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN
  • Patent number: 11164516
    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 sub-circuit, a second sub-circuit, and a leakage prevention circuit. The first sub-circuit comprises a first input circuit and a first output circuit, the first input circuit is configured to control a level of a first node in response to a first input signal. The second sub-circuit comprises a second input circuit and the second output circuit. The leakage prevention circuit is connected to the first node, and is configured to control a level of the leakage prevention node under control of the level of the first node, so that a circuit connected between the first node and the leakage prevention node is turned off, and a circuit connected between the second node and the leakage prevention node is turned off.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: November 2, 2021
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li, Hao Liu
  • Publication number: 20210335269
    Abstract: The present disclosure relates to the field of display technology, and provides a shift register unit and a driving method thereof, a gate driving circuit, and a display panel. The shift register unit includes: an input circuit, a charging circuit, an inverter circuit, an output circuit, and a pull-down circuit. The input circuit is connected to a second clock signal terminal, a signal input terminal and a first node. The inverter circuit is connected to the signal input terminal, the second clock signal terminal, a first power supply terminal, a second power supply terminal and a pull-down node. The output circuit is connected to the pull-up node, the first power supply terminal and an output terminal. The pull-down circuit is connected to the pull-down node, the second power supply terminal, the pull-up node, and the output terminal.
    Type: Application
    Filed: March 19, 2021
    Publication date: October 28, 2021
    Inventors: Zhidong YUAN, Pan XU, Yongqian LI, Can YUAN
  • Publication number: 20210335202
    Abstract: A shift register unit and a drive method thereof, a gate drive circuit, and a display device are provided. A shift register unit includes a first noise reduction circuit, a first input circuit, and an output circuit; the first input circuit is coupled to a first node, and is configured to input a first control signal to the first node in response to a first input signal; the output circuit is coupled to the first node and an output terminal, and is configured to output a first output signal to the output terminal under control of a level of the first node; and the first noise reduction circuit is coupled to the output terminal, and is configured to perform noise reduction on the output terminal in response to a level of the output terminal.
    Type: Application
    Filed: May 8, 2019
    Publication date: October 28, 2021
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210335199
    Abstract: A shift register unit, a gate drive circuit, a display device and a driving method are provided. The shift register unit includes a sub-shift register, a second sub-shift register and an output control circuit. The first sub-shift register includes a first output terminal and a first control node, and is configured to output a first clock signal under control of a level of the first control node. The second sub-shift register include a second output terminal and a second control node, and the second output terminal outputs a display output signal in a display phase and a random output signal in a blank phase under control of a level of the second control node. The output control circuit is connected to the first sub-shift register and the second control node, and is configured to control the level of the second control node under control of an output control signal.
    Type: Application
    Filed: February 27, 2019
    Publication date: October 28, 2021
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Xuehuan Feng, Can Yuan
  • Publication number: 20210335177
    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: December 21, 2018
    Publication date: October 28, 2021
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210335203
    Abstract: The present application discloses a shift-register unit. The shift-register unit includes a first sub-unit including a first input circuit coupled via a first node to a first output circuit. The first input circuit is configured to control a voltage level of the first node in response to a first input signal and 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. Additionally, the shift-register unit includes a second sub-unit including a second input circuit coupled via a second node to a second output circuit. The second input circuit is configured to control a voltage level of the second node in response to the first input signal and the second output circuit is configured to output a second output signal in response to the voltage level of the second node.
    Type: Application
    Filed: July 2, 2019
    Publication date: October 28, 2021
    Applicants: Hefei BOE Joint Technology Co.,Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li, Xing Zhang
  • Publication number: 20210335197
    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: December 21, 2018
    Publication date: October 28, 2021
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210335266
    Abstract: A shift register unit, a driving method thereof, a gate driver and a display device are provided. The shift register unit includes a first input circuit, an output circuit and a charging enhancement circuit. The first input circuit is configured to charge a first node in response to a first input signal; the output circuit is configured to output, under control of a level of the first node, a shift signal for a row-by-row shift of scanning and a first output signal for driving one row of sub-pixel units in a display panel to perform display scanning; and the charging enhancement circuit is configured to further enhance the level of the first node in response to a charging enhancement signal. The shift register unit may enhance the level of the first node and the reliability of the gate driver and the display device consisted of the shift register unit.
    Type: Application
    Filed: May 23, 2019
    Publication date: October 28, 2021
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan FENG, Yongqian LI
  • Publication number: 20210335960
    Abstract: A double-sided display panel and a method for manufacturing the same are provided. The double-sided display panel includes: a first substrate; a second substrate opposite to first substrate; a first display unit between the first substrate and the second substrate, the first display unit including a first luminescent layer and a first reflective layer which is closer to the second substrate than the first luminescent layer, wherein at least a part of light emitted from the first luminescent layer is reflected by the first reflective layer and emitted out through the first substrate; and a second display unit between the first substrate and the second substrate, including a second luminescent layer, wherein light emitted from the second luminescent layer is emitted out through the second substrate. The first display unit includes a transparent electrode and a conductive contact layer which electrically connects the transparent electrode with the first reflective layer.
    Type: Application
    Filed: October 31, 2018
    Publication date: October 28, 2021
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210335200
    Abstract: An OR logic operation circuit and a driving method, a shift register unit, a gate drive circuit, and a display device are provided. The OR logic operation circuit includes: a first inverter, a second inverter, a first control circuit, and a second control circuit. The first inverter is configured to invert a first control signal, which is received, to output a second control signal; the second inverter is configured to invert a third control signal received to output a fourth control signal; the first control circuit is configured to perform first control on a first node and the output terminal to achieve an OR operation and output a first level of an output signal at the output terminal; and the second control circuit is configured to perform second control on the first node and the output terminal to output a second level of the output signal at the output terminal.
    Type: Application
    Filed: January 16, 2019
    Publication date: October 28, 2021
    Inventors: Zhidong YUAN, Yongqian LI, Can YUAN, Meng LI
  • Patent number: 11158226
    Abstract: The present disclosure provides a gate driving unit and method, a gate driving module and circuit, and a display device. The gate driving unit includes: an external compensation control signal output terminal, a gate driving signal output terminal, an external compensation control signal output circuit, a gate driving signal output circuit, a pull-up control circuit and a pull-down node control circuit.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: October 26, 2021
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Publication number: 20210327343
    Abstract: Brightness compensation method and apparatus for pixel point are provided. The compensation method includes measurement processes of N times, N?2.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 21, 2021
    Inventors: Dongxu HAN, Tieshi WANG, Zhongyuan WU, Yongqian LI, Pan XU, Jinxia HU
  • Publication number: 20210327339
    Abstract: A shift register includes a first reset circuit having a first transistor and a second transistor, and a selection control circuit connected to a pull-down node, and control electrodes of the first and second transistors. First electrodes of the first and second transistors are connected to a first voltage terminal, and second electrodes of the first and second transistors are connected to a signal output terminal. The selection control circuit is configured to: control a line between the pull-down node and the control electrode of the first transistor, and a line between the pull-down node and the control electrode of the second transistor to be alternately closed. The first reset circuit is configured to output a voltage of the first voltage terminal to the signal output terminal under control of a potential at the pull-down node transmitted by the selection control circuit.
    Type: Application
    Filed: July 29, 2020
    Publication date: October 21, 2021
    Inventors: Xuehuan Feng, Yongqian LI