发明授权
- 专利标题: Scanning circuit
- 专利标题(中): 扫描电路
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申请号: US453495申请日: 1995-05-30
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公开(公告)号: US5510805A公开(公告)日: 1996-04-23
- 发明人: Sywe N. Lee
- 申请人: Sywe N. Lee
- 申请人地址: TWX Hsinchu
- 专利权人: Prime View International Co.
- 当前专利权人: Prime View International Co.
- 当前专利权人地址: TWX Hsinchu
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
A row select driver circuit is used to energize each pixel row sequentially of a liquid crystal display. The output of each row select driver circuit is connected to a corresponding pixel row line and to a succeeding row select driver circuit as an activating input. All the row select driver circuits are integrated with thin-film transistors and deposited on the same glass substrate as the pixels. The number of leads connected to the assembly is much less than the number of pixel rows, including two sets of overlapping clock signals (three each for odd-numbered rows and even-numbered rows offset by one scanning line time) with different pulsewidths and periods twice as long as the scanning line time, a clock signal with a period as long as the scanning line time, a shift-in signal, a positive power supply terminal and at least one ground. These long clock periods precharge the following stage so as to effect a faster deselect time by overcoming the long time constant due to the high series of the thin-film transistors. In one example, the number of leads is reduced from 240 to 11.
公开/授权文献
- USD317251S Adjustable strap 公开/授权日:1991-06-04
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