发明授权
- 专利标题: Gate driving circuit and display apparatus having the same
- 专利标题(中): 栅极驱动电路及其显示装置
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申请号: US11761149申请日: 2007-06-11
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公开(公告)号: US07932887B2公开(公告)日: 2011-04-26
- 发明人: Sung-Man Kim , Myung-Koo Hur , Jong-Hwan Lee , Hong-Woo Lee
- 申请人: Sung-Man Kim , Myung-Koo Hur , Jong-Hwan Lee , Hong-Woo Lee
- 申请人地址: KR Suwon-si
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Suwon-si
- 代理机构: H.C. Park & Associates, PLC
- 优先权: KR10-2006-0052612 20060612
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
A gate driving circuit includes stages connected in series. In a stage, a pull-up part pulls up a present gate signal to a level of a first clock signal, and a pull-down part receives a next gate signal from a next stage to discharge the present gate signal to an off-voltage. A pull-up driving part turns on or turns off the pull-up part and the carry part. A holding part holds the present gate signal at the off-voltage and a present inverter turns on or turns off the holding part in response to the first clock signal. A ripple preventing capacitor is connected between a present node and an output terminal of a previous stage's inverter to prevent a ripple at the present Q-node in response to an output signal from the previous inverter.
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