发明授权
- 专利标题: Active matrix circuit for liquid crystal displays
- 专利标题(中): 液晶显示器的有源矩阵电路
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申请号: US144787申请日: 1988-01-21
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公开(公告)号: US4890097A公开(公告)日: 1989-12-26
- 发明人: Ichiro Yamashita , Mamoru Takeda
- 申请人: Ichiro Yamashita , Mamoru Takeda
- 申请人地址: JPX Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX59-242876 19841116; JPX60-85241 19850419; JPX60-83622 19850420
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335 ; G02F1/1362 ; G09G3/36
摘要:
An active matrix circuit for liquid crystal displays includes a plurality of liquid crystal pixels arranged in a matrix, a plurality of scanning lines supplied with selection pulses to select rows of the pixel matrix, a plurality of signal lines supplied with signal voltages which are supplied to the pixels in a selected row, and a plurality of switching elements responsive to the respective selection pulses for supplying the signal voltages to the respective pixels. Each pixel is controlled by two switching elements responsive to selection pulses supplied adjaent to two scanning lines. If one of the two switching elements is defective due to a manufacturing process, it is later electrically isolated from the circuit. The other one can control the respective pixel to operate normally. The switching element may be a transistor or a non-linear device.