发明名称 |
Data line drivers with column initialization transistor |
摘要 |
<p>A video display driver applies a video signal to column electrodes of a liquid crystal display. The display driver includes a reference ramp generator and column data line drivers. A reference ramp signal is combined with the video signal and applied to an input of a comparator. The comparator controls a first transistor that couples a data ramp signal to a given column of pixels. The first transistor at least partially initializes a voltage developed in the given column of pixels prior to an instant when the data ramp signal begins upramping. A second transistor that is coupled in parallel with the first transistor insures that the column voltage is fully initialized. <IMAGE></p> |
申请公布号 |
EP0731444(A1) |
申请公布日期 |
1996.09.11 |
申请号 |
EP19960400403 |
申请日期 |
1996.02.26 |
申请人 |
THOMSON MULTIMEDIA S.A. |
发明人 |
WEISBROD, SHERMAN |
分类号 |
G02F1/133;G09G3/20;G09G3/36;(IPC1-7):G09G3/36 |
主分类号 |
G02F1/133 |
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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