Patents by Inventor Xueqi Tian

Xueqi Tian 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).

  • Pixel circuit, method for driving a pixel circuit, display panel, and display apparatus
    Patent number: 11749193
    Abstract: Provided a pixel circuit, a method for driving a pixel circuit, a display panel, and a display apparatus. The pixel circuit applied in a display panel includes a data writing module, a drive transistor, a leakage current alleviation module, a first power supply terminal, and a data signal terminal. The data writing module configured to write data signal of the data signal terminal to gate of the drive transistor in data writing stage; the leakage current alleviation module configured to transmit leakage current generated by the data writing module to first power supply terminal in leakage current alleviation stage; and the drive transistor configured to drive a light-emitting element to emit light in light emission stage. The leakage current alleviation stage located at least between the data writing stage and the light emission stage, enhancing the luminance accuracy of the light-emitting element and the display uniformity of the display panel.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: September 5, 2023
    Assignees: Wuhan Tianma Microelectronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Zhi Liu, Yana Gao, Fei Wu, Yue Li, Xingyao Zhou, Xueqi Tian
  • PIXEL CIRCUIT, METHOD FOR DRIVING A PIXEL CIRCUIT, DISPLAY PANEL, AND DISPLAY APPARATUS
    Publication number: 20220165214
    Abstract: Provided a pixel circuit, a method for driving a pixel circuit, a display panel, and a display apparatus. The pixel circuit applied in a display panel includes a data writing module, a drive transistor, a leakage current alleviation module, a first power supply terminal, and a data signal terminal. The data writing module configured to write data signal of the data signal terminal to gate of the drive transistor in data writing stage; the leakage current alleviation module configured to transmit leakage current generated by the data writing module to first power supply terminal in leakage current alleviation stage; and the drive transistor configured to drive a light-emitting element to emit light in light emission stage. The leakage current alleviation stage located at least between the data writing stage and the light emission stage, enhancing the luminance accuracy of the light-emitting element and the display uniformity of the display panel.
    Type: Application
    Filed: February 11, 2022
    Publication date: May 26, 2022
    Applicants: Wuhan Tianma Microelectronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Zhi Liu, Yana Gao, Fei Wu, Yue Li, Xingyao Zhou, Xueqi Tian