公开(公告)号：US20220165214A1

公开(公告)日：2022-05-26

申请号：US17669648

申请日：2022-02-11

申请人： Wuhan Tianma Microelectronics Co., Ltd. ,  Whuan Tianma Microelectronics Co., Ltd. Shanghai Branch

发明人： Zhi Liu ,  Yana Gao ,  Fei Wu ,  Yue Li ,  Xingyao Zhou ,  Xueqi Tian

IPC分类号： G09G3/3233

摘要： 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.

公开(公告)号：US11749193B2

公开(公告)日：2023-09-05

申请号：US17669648

申请日：2022-02-11

申请人： Wuhan Tianma Microelectronics Co., Ltd. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

发明人： Zhi Liu ,  Yana Gao ,  Fei Wu ,  Yue Li ,  Xingyao Zhou ,  Xueqi Tian

IPC分类号： G09G3/3233

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/061 ,  G09G2320/0214 ,  G09G2320/0233

摘要： 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.