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Self-compensating gate driving circuit

机译:自补偿栅极驱动电路

摘要

The present invention provides a self-compensating gate driving circuit, comprising: a plurality of GOA units which are cascade connected, and a Nth GOA unit controls charge to a Nth horizontal scanning line G(n) in a display area, and the Nth GOA unit controls charge to a Nth horizontal scanning line G(n) in a display area, and the Nth GOA unit comprises a pull-up controlling part, a pull-up part, a transmission part, a first pull-down part, a bootstrap capacitor part and a pull-down holding part; the pull-up part, the first pull-down part, the bootstrap capacitor part and the pull-down holding circuit are respectively coupled to a Nth gate signal point Q(N) and the Nth horizontal scanning line G(n), and the pull-up controlling part and the transmission part are respectively coupled to the Nth gate signal point Q(N), and the pull-down holding part is inputted with a DC low voltage VSS; the pull-down holding part comprises a first pull-down holding part and a second pull-down holding part to alternately work. The present invention is designed to have the pull-down holding part with self-compensating function to promote the reliability of the long term operation for the gate driving circuit. The influence of the threshold voltage drift to the operation of the gate driving circuit is diminished.
机译:本发明提供一种自补偿栅极驱动电路,包括:级联连接的多个GOA单元,控制显示区域中对第N条水平扫描线G(n)的电荷的第N GOA单元,单元控制到显示区域中第N条水平扫描线G(n)的电荷,第N GOA单元包括上拉控制部分,上拉部分,传输部分,第一下拉部分,引导程序电容器部和下拉保持部。上拉部分,第一下拉部分,自举电容器部分和下拉保持电路分别耦合到第N栅极信号点Q(N)和第N水平扫描线G(n),并且上拉控制部和发送部分别耦接至第N栅极信号点Q(N),并且向下拉保持部输入直流低压VSS。下拉保持部件包括第一下拉保持部件和第二下拉保持部件以交替地工作。本发明被设计为具有具有自补偿功能的下拉保持部件,以提高栅极驱动电路的长期操作的可靠性。阈值电压漂移对栅极驱动电路的操作的影响被减小。

著录项

  • 公开/公告号GB2542314B

    专利类型

  • 公开/公告日2020-09-09

    原文格式PDF

  • 申请/专利号GB20170000524

  • 发明设计人 CHAO DAI;

    申请日2014-08-14

  • 分类号G09G3/36;G11C19/18;G11C19/28;

  • 国家 GB

  • 入库时间 2022-08-21 10:59:51

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