发明授权
- 专利标题: Active matrix liquid crystal display device and method of driving the same
- 专利标题(中): 有源矩阵液晶显示装置及其驱动方法
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申请号: US11922491申请日: 2006-07-11
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公开(公告)号: US08736534B2公开(公告)日: 2014-05-27
- 发明人: Etsuo Yamamoto , Yuhichiroh Murakami , Yasushi Sasaki , Seijirou Gyouten
- 申请人: Etsuo Yamamoto , Yuhichiroh Murakami , Yasushi Sasaki , Seijirou Gyouten
- 申请人地址: JP Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JP Osaka
- 代理机构: Harnes, Dickey & Pierce, P.L.C.
- 优先权: JP2005-206105 20050714; JP2005-362193 20051215
- 国际申请: PCT/JP2006/313795 WO 20060711
- 国际公布: WO2007/007768 WO 20070118
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
In one embodiment of the present invention, on each source bus line, an electric charge escaping transistor is provided having the same polarity as a pixel transistor and having a gate to which a turn-off voltage signal of the pixel transistor is supplied. When an active matrix liquid crystal display device is powered off, the turn-off voltage signal is made to reach the GND level before a turn-on voltage signal of the pixel transistor reaches the GND level, so that the pixel transistor and the electric charge escaping transistor are made half-open. This lets electric charges accumulated in the pixel escape to a common electrode TCOM.
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