Patents by Inventor Zhiqiang Xu

Zhiqiang Xu 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: 11238788
    Abstract: The present disclosure provides an OLED panel, a driving method thereof and a display device. The OLED panel has pixel units arranged in rows and columns, and each including an OLED device. The OLED panel includes regions arranged in column direction, and each including at least one row of pixel units and a cathode layer, the OLED devices in each region share the cathode layer therein, and the cathode layer of each region is disconnected from the cathode layer of any other region. The OLED panel includes a cathode voltage supply circuit configured to output a cathode voltage including an operating level to the cathode layer. The cathode voltage supply circuit is configured to start outputting the operating level to the cathode layer of at least one region at a time at least later than a time when all pixel units in the region receive a scan signal.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: February 1, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Qin, Kuanjun Peng, Chengchung Yang, Xiaolong Li, Zhiqiang Xu
  • Patent number: 11238803
    Abstract: The present disclosure provides a pixel circuit and a method for driving the same, and a display panel. The pixel circuit includes a driving sub-circuit and a light-emitting control sub-circuit. The driving sub-circuit is configured to transmit a first power voltage at a first power signal terminal to a second node. The light-emitting control sub-circuit is configured to: transmit a voltage at the second node and a second power voltage at the second power signal terminal to the first electrode of the first light-emitting element and the second electrode of the first light-emitting element respectively in a first period, to the first electrode of the second light-emitting element and the second electrode of the second light-emitting element respectively in a second period, and to the first electrode of the third light-emitting element and the second electrode of the third light-emitting element respectively in a third period.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: February 1, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weixing Liu, Tieshi Wang, Zhiqiang Xu, Shengnan Li, Wanpeng Teng, Chunfang Zhang, Xiaolong Li, Wei Qin, Kai Guo, Kuanjun Peng
  • Publication number: 20220017615
    Abstract: An antibody targeting CD47, a preparation method therefor and uses thereof. A novel mouse or human-mouse chimeric antibody targeting CD47. A method for preparing the monoclonal antibody. The monoclonal antibody of the present invention can bind CD47 antigen with high specificity, has high affinity and significant activities, such as anti-tumor activity.
    Type: Application
    Filed: December 3, 2019
    Publication date: January 20, 2022
    Inventors: Lile LIU, Tatchi Teddy YANG, Shireen KHAN, Qing DUAN, Jing GAO, Jingyun YAO, Zhiqiang XU, Yali MENG, Liang WANG, Mingming PAN, Wenming ZHOU, Ke XIA, Cuicui GUO, Guozhen TONG, Lu WANG, Jiaxun ZHAO, Dongxu WANG, Chaohui DAI, Mengying WANG
  • Publication number: 20210407433
    Abstract: There are provided a pixel circuit and a method and apparatus for driving the same, an array substrate and a display apparatus. The pixel circuit includes: a driving sub-circuit and a switch sub-circuit coupled in series between a power signal terminal and a light emitting element, wherein the driving sub-circuit is configured to provide a driving signal to the light emitting element under control of a gate driving signal provided by a gate line, a data signal provided by a data line, and a power signal provided by a power signal terminal; and the switch sub-circuit is configured to control switch-on and switch-off of a signal path between the power signal terminal and the light emitting element under control of a switch signal provided by a switch signal terminal.
    Type: Application
    Filed: May 13, 2019
    Publication date: December 30, 2021
    Inventors: Tieshi Wang, Zhiqiang Xu, Xueling Gao, Chengchung Yang
  • Patent number: 11170701
    Abstract: An embodiment of the present disclosure provides a driving circuit, a driving method thereof, a display panel and a display device. The driving circuit includes a first transistor electrically connected between a signal input terminal and a light emitting device to be driven, a duration control circuit configured to provide a signal of a duration data signal terminal to a gate of the first transistor in response to a signal of a duration scanning signal terminal, and a latch circuit electrically connected with the gate of the first transistor and configured to latch the signal of the gate of the first transistor.
    Type: Grant
    Filed: October 12, 2019
    Date of Patent: November 9, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Wei Qin, Weixing Liu, Tieshi Wang, Kai Guo, Xiaolong Li, Kuanjun Peng, Zhiqiang Xu, Wanpeng Teng
  • Publication number: 20210327357
    Abstract: The present disclosure provides a pixel circuit and a method for driving the same, and a display panel. The pixel circuit includes a driving sub-circuit and a light-emitting control sub-circuit. The driving sub-circuit is configured to transmit a first power voltage at a first power signal terminal to a second node. The light-emitting control sub-circuit is configured to: transmit a voltage at the second node and a second power voltage at the second power signal terminal to the first electrode of the first light-emitting element and the second electrode of the first light-emitting element respectively in a first period, to the first electrode of the second light-emitting element and the second electrode of the second light-emitting element respectively in a second period, and to the first electrode of the third light-emitting element and the second electrode of the third light-emitting element respectively in a third period.
    Type: Application
    Filed: July 22, 2020
    Publication date: October 21, 2021
    Inventors: Weixing Liu, Tieshi Wang, Zhiqiang Xu, Shengnan Li, Wanpeng Teng, Chunfang Zhang, Xiaolong Li, Wei Qin, Kai Guo, Kuanjun Peng
  • Patent number: 11114061
    Abstract: The present disclosure relates to a light-emission control signal generating device and a display device. The light-emission control signal generating device includes: a state detection circuit configured to detect whether a current frame is a static frame or a dynamic frame and output an indication signal indicating the static frame or the dynamic frame; and a plurality of light emission control signal generation circuits; wherein the plurality of light emission control signal generation circuits are divided into a plurality of blocks, and individual blocks are input with different light emission enable signals based on the indication signal to generate light emission control signals.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: September 7, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueling Gao, Kuanjun Peng, Chengchung Yang, Zhiqiang Xu, Wei Qin, Tieshi Wang, Xiaolong Li, Shengnan Li, Wanpeng Teng
  • Publication number: 20210241697
    Abstract: A method of driving a pixel includes providing a driving transistor having a first end connected to a first node, a control end connected to a second node, and a second connected to the third node end; a writing circuit connected a data signal end, a first scanning end and the first node; a first control circuit connected to a first power end, a light emitting control end and the first node; a reset circuit connected to a reference signal end, a second scanning end, and the second node; a compensation circuit connected between the second node and the third node; a second control circuit connected to the third node, a light emitting element, and the light emitting control end; and an energy storage circuit connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.
    Type: Application
    Filed: April 20, 2021
    Publication date: August 5, 2021
    Inventors: Tieshi WANG, Xueling GAO, Zhiqiang XU, Chengchung YANG, Haoran LIU
  • Publication number: 20210233966
    Abstract: A display substrate and a fabrication method thereof, and a display device. The display substrate includes a first pixel unit and a second pixel unit. The first pixel unit includes a first electrode and a first light-emitting layer that are stacked; the second pixel unit includes a second electrode and a second light-emitting layer that are stacked; an effective light-emitting area of the first light-emitting layer is unequal to an effective light-emitting area of the second light-emitting layer; and in a direction directly facing a display side of the display substrate, a light-reflecting area of the first electrode that is exposed in the first pixel unit is equal to a light-reflecting area of the second electrode that is exposed in the second pixel unit. The display substrate may suppress a color shift defect.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 29, 2021
    Inventors: Zhiqiang XU, Tieshi WANG, Wei QIN, Wanpeng TENG, Chuanxiang XU
  • Patent number: 11056059
    Abstract: The present application provides a display panel, a method of driving the same and a display apparatus. The display panel has pixel regions, each of which has pixel structures. Each of the pixel structures includes an anode, a cathode and a light emitting layer. The display panel further includes a controller and power signal lines coupled to the controller. Cathodes or anodes in a same pixel region are coupled to a same power signal line. The controller is configured to control a duty cycle of a control signal input to a power signal line coupled to a pixel region in response to a motion picture being displayed in the pixel region.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: July 6, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaolong Li, Wei Qin, Kuanjun Peng, Xueling Gao, Chengchung Yang, Zhiqiang Xu
  • Patent number: 11024232
    Abstract: A pixel driving circuit and a driving method thereof, and a display panel are provided. The pixel driving circuit includes a driving sub-circuit, a reset sub-circuit, a light-emitting control sub-circuit, and a first compensation sub-circuit, the reset sub-circuit, the light-emitting control sub-circuit, and the first compensation sub-circuit are configured to, in an initialization phase, under control of a first driving signal and a second driving signal, provide the first power supply voltage provided by the first power supply input terminal to the control terminal of the driving sub-circuit; the first terminal of the driving sub-circuit is connected to the second power supply input terminal to receive the second power supply voltage; and the first power supply voltage and the second power supply voltage are configured to cause the driving sub-circuit to be in an on-bias state in the initialization phase.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: June 1, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueling Gao, Kuanjun Peng, Wei Qin, Zhiqiang Xu, Tieshi Wang, Xiaolong Li, Jintao Peng
  • Publication number: 20210142764
    Abstract: The present disclosure relates to a light-emission control signal generating device and a display device. The light-emission control signal generating device includes: a state detection circuit configured to detect whether a current frame is a static frame or a dynamic frame and output an indication signal indicating the static frame or the dynamic frame; and a plurality of light emission control signal generation circuits; wherein the plurality of light emission control signal generation circuits are divided into a plurality of blocks, and individual blocks are input with different light emission enable signals based on the indication signal to generate light emission control signals.
    Type: Application
    Filed: May 24, 2019
    Publication date: May 13, 2021
    Inventors: Xueling GAO, Kuanjun PENG, Chengchung YANG, Zhiqiang XU, Wei QIN, Tieshi WANG, Xiaolong LI, Shengnan LI, Wanpeng TENG
  • Publication number: 20210142719
    Abstract: Embodiments of the present disclosure provide a pixel driving circuit and a driving method thereof, a display panel and a display device.
    Type: Application
    Filed: March 31, 2020
    Publication date: May 13, 2021
    Inventors: Wei Qin, Xiaolong Li, Kuanjun Peng, Chunfang Zhang, Zhiqiang Xu, Yanan Niu
  • Patent number: 10991306
    Abstract: A circuit of driving pixel includes a driving transistor, having a first end connected to a first node, a control end connected to a second node, and a second connected to the third node end; a writing circuit, connected a data signal end, a first scanning end and the first node; a first control circuit, connected to a first power end, a light emitting control end and the first node; a reset circuit, connected to a reference signal end, a second scanning end and the second node; a compensation circuit, connected between the second node and the third node; a second control circuit, connected to the third node, a light emitting element and the light emitting control end; and an energy storage circuit, connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 27, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tieshi Wang, Xueling Gao, Zhiqiang Xu, Chengchung Yang, Haoran Liu
  • Publication number: 20210110759
    Abstract: An embodiment of the present disclosure provides a driving circuit, a driving method thereof, a display panel and a display device. The driving circuit includes a first transistor electrically connected between a signal input terminal and a light emitting device to be driven, a duration control circuit configured to provide a signal of a duration data signal terminal to a gate of the first transistor in response to a signal of a duration scanning signal terminal, and a latch circuit electrically connected with the gate of the first transistor and configured to latch the signal of the gate of the first transistor.
    Type: Application
    Filed: October 12, 2019
    Publication date: April 15, 2021
    Inventors: Wei QIN, Weixing LIU, Tieshi WANG, Kai GUO, Xiaolong LI, Kuanjun PENG, Zhiqiang XU, Wanpeng TENG
  • Patent number: 10971069
    Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: April 6, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tieshi Wang, Kuanjun Peng, Wei Qin, Chengchung Yang, Xueling Gao, Xiaolong Li, Zhiqiang Xu, Yan Wei, Shengnan Li
  • Patent number: 10971060
    Abstract: A method of adjusting display brightness, a light-emission control circuit and a display device are provided. A method of adjusting display brightness is applied to an light-emission control circuit, where the light-emission control circuit is configured to generate an light-emission control signal configured to control a light-emission of a display device. The method includes: adjusting, in the case that a display brightness of the display device is not within a predetermined brightness range, a duty ratio of the light-emission control signal, to enable the display brightness of the display device to fall into the predetermined brightness range.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: April 6, 2021
    Assignee: Boe Technology Group Co., Ltd.
    Inventors: Kuanjun Peng, Chengchung Yang, Zhiqiang Xu
  • Patent number: 10937368
    Abstract: A voltage compensation method, a voltage compensation device, a display device and a computer-readable storage medium are provided. The voltage compensation method includes: determining a first voltage of a target pixel in a first image; determining a second voltage of the target pixel in a second image, where the second image is switched from the first image; determining a voltage compensation value based on the first voltage and the second voltage; an determining a transition voltage based on the voltage compensation value and the second voltage, and compensating the second voltage by the transition voltage; where a gray-level of the target pixel in the first image is greater than a gray-level of the target pixel in the second image, the transition voltage is a driving voltage of the target pixel between the first voltage and the second voltage.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: March 2, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jintao Peng, Kuanjun Peng, Wei Qin, Chengchung Yang, Wanpeng Teng, Zhiqiang Xu, Xueling Gao
  • Publication number: 20210027711
    Abstract: A pixel circuit includes a sensing circuit, a gray-scale control circuit and a light-emitting switch circuit; the sensing circuit is configured to charge and discharge a sensing capacitor when a sensing capacitor is formed by a touch object and an anode layer of OLED; the gray-scale control circuit is configured to control the light-emitting intensity of the OLED; the light-emitting switch circuit is configured to control the OLED to emit light.
    Type: Application
    Filed: March 25, 2020
    Publication date: January 28, 2021
    Inventors: Wei QIN, Zhiqiang XU, Xiaolong LI, Tieshi WANG, Weixing LIU, Kai GUO, Jintao PENG, Yanan NIU, Kuanjun PENG
  • Publication number: 20200388222
    Abstract: A voltage compensation method, a voltage compensation device, a display device and a computer-readable storage medium are provided. The voltage compensation method includes: determining a first voltage of a target pixel in a first image; determining a second voltage of the target pixel in a second image, where the second image is switched from the first image; determining a voltage compensation value based on the first voltage and the second voltage; an determining a transition voltage based on the voltage compensation value and the second voltage, and compensating the second voltage by the transition voltage; where a gray-level of the target pixel in the first image is greater than a gray-level of the target pixel in the second image, the transition voltage is a driving voltage of the target pixel between the first voltage and the second voltage.
    Type: Application
    Filed: March 21, 2019
    Publication date: December 10, 2020
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jintao PENG, Kuanjun PENG, Wei QIN, Chengchung YANG, Wanpeng TENG, Zhiqiang XU, Xueling GAO