发明名称 |
Drive circuit with reduced kickback voltage for liquid crystal display |
摘要 |
A drive circuit and method for driving a thin film transistor liquid crystal display which reduce kickback voltage by generating a gate drive signal that has a reduced on voltage during a drop portion of the horizontal scanning time. The circuit includes a voltage signal generating circuit for receiving both a common electrode signal and an inverting common electrode signal and generating voltage signals, a drop signal generating circuit for generating drop signals, and a signal mixer circuit for combining the voltage signals and the drop signals and generating a composite output signal. The voltage signal generating circuit and the drop signal generating circuits both include a series of boost stages comprised of diode voltage multipliers. The signal mixing circuit includes a series of switches that are controlled by the drop signals. The length of the drop portion of the horizontal scan time can be controlled by a period control signal.
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申请公布号 |
US5896117(A) |
申请公布日期 |
1999.04.20 |
申请号 |
US19960671414 |
申请日期 |
1996.06.27 |
申请人 |
SAMSUNG ELECTRONICS, CO., LTD. |
发明人 |
MOON, SEUNG-HWAN |
分类号 |
G09G3/36;(IPC1-7):G09G3/36 |
主分类号 |
G09G3/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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