发明名称 |
Driving circuit for driving liquid crystal display device |
摘要 |
In a sampling circuit for a driving circuit for driving an active matrix circuit having signal lines in an active matrix type liquid crystal display device, two switches are connected with each other in series. Further a connection point between two switches is connected with a constant voltage input terminal through another switch or a resistor, to reduce a voltage applied to the TFTs constructing two switches and to perform at high speed operation in the TFTs. When sampling is not performed, the two switches are turned off and a constant voltage is applied from the constant voltage input terminal to the connection point.
|
申请公布号 |
US5570105(A) |
申请公布日期 |
1996.10.29 |
申请号 |
US19940361034 |
申请日期 |
1994.12.21 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
KOYAMA, JUN |
分类号 |
G09G3/20;G09G3/36;(IPC1-7):G09G3/36 |
主分类号 |
G09G3/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|