发明名称 |
Circuit for driving a liquid crystal display panel |
摘要 |
A circuit for driving an active matrix liquid crystal display having M rows and N columns by video digital data of K bits is provided. The rows and columns intersect at a plurality of thin film transistors which form at least in part a pixel at each intersection of a column and row. An analog switch capable of ON and OFF state receives a video voltage and a control signal and selectively outputs the video voltage to each column in response to a control signal. The video voltage varies in level sequentially increasing from the OFF state at least once each horizontal scanning period. A control receives the K bit digital input data and produces a control signal for controlling the time of the ON state of the analog switch in response to the input data. K is an integer at least equal to 1.
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申请公布号 |
US5157386(A) |
申请公布日期 |
1992.10.20 |
申请号 |
US19900500445 |
申请日期 |
1990.03.28 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
UCHIDA, MASAHIDE;SHIDA, FUMIO |
分类号 |
G09G3/20;G09G3/36;H04N3/12;H04N5/74 |
主分类号 |
G09G3/20 |
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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