公开(公告)号：US20100097365A1

公开(公告)日：2010-04-22

申请号：US12354844

申请日：2009-01-16

申请人： Wen-Chen FANG ,  Chun-Chin Tseng ,  Wen-Zhe Lin ,  Pei-Chi Tsai

发明人： Wen-Chen FANG ,  Chun-Chin Tseng ,  Wen-Zhe Lin ,  Pei-Chi Tsai

IPC分类号： G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3648 ,  G09G3/3696 ,  G09G2310/0245 ,  G09G2320/0257 ,  G09G2330/022 ,  G09G2330/027

摘要： The present invention discloses a liquid crystal display device and a control method thereof. In the present invention, a clock controller detects an external clock signal and outputs a switching signal according to the external clock signal. According the information carried by the switching signal, a shutoff switching circuit controls a gamma voltage generator and a common voltage circuit to output voltages making a pixel electrode and a common electrode have a zero voltage difference. Thereby, the pixel charges are completely released after system shutoff, and the shutoff retained images are instantly eliminated.

摘要翻译： 本发明公开了一种液晶显示装置及其控制方法。 在本发明中，时钟控制器检测外部时钟信号，并根据外部时钟信号输出开关信号。 根据开关信号所携带的信息，切断开关电路控制伽马电压发生器和公共电压电路以输出使像素电极和公共电极具有零电压差的电压。 因此，在系统关闭之后，像素电荷被完全释放，并且立即消除关闭保持的图像。