- 专利标题: Pixel driving circuit, display panel and display apparatus
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申请号: US17837996申请日: 2022-06-10
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公开(公告)号: US11676537B2公开(公告)日: 2023-06-13
- 发明人: Mengmeng Zhang , Xingyao Zhou , Yue Li , Jian Kuang , Yuantao Wu
- 申请人: WUHAN TIANMA MICROELECTRONICS CO., LTD. , Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
- 申请人地址: CN Wuhan
- 专利权人: WUHAN TIANMA MICROELECTRONICS CO., LTD.,Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
- 当前专利权人: WUHAN TIANMA MICROELECTRONICS CO., LTD.,Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
- 当前专利权人地址: CN Wuhan; CN Shanghai
- 代理机构: Christensen O'Connor Johnson Kindness PLLC
- 优先权: CN 2111498291.8 2021.12.09
- 主分类号: G09G3/3233
- IPC分类号: G09G3/3233
摘要:
Provided is a pixel driving circuit, a display panel and a display apparatus. The pixel driving circuit includes: driving transistor having gate electrode connected to first node, first electrode connected to second node, and second electrode electrically connected to third node coupled to light emitting element; storage capacitor connected to the first node; and M first transistors having M first and second electrodes connected to the first node M functional signal terminals, respectively, M≥1. A driving cycle of the pixel driving circuit includes light-emitting stage and N non-light-emitting stages, N≥M. The M first transistors are respectively turned on in the N non-light-emitting stages, and the M first transistors are all turned off in the light-emitting stage. One of the N non-light-emitting stages includes first non-light-emitting stage adjacent to the light-emitting stage. Channel length L and width W of the first transistor satisfy:
W
×
L
W
×
L
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