发明授权
- 专利标题: Row electrode driving circuit for a display apparatus
- 专利标题(中): 用于显示装置的行电极驱动电路
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申请号: US783890申请日: 1991-10-29
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公开(公告)号: US5253093A公开(公告)日: 1993-10-12
- 发明人: Shiro Takeda , Takafumi Kawaguchi , Makoto Takeda
- 申请人: Shiro Takeda , Takafumi Kawaguchi , Makoto Takeda
- 申请人地址: JPX Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JPX Osaka
- 优先权: JPX2-296164 19901031
- 主分类号: G02F1/133
- IPC分类号: G02F1/133 ; G09G3/20 ; G09G3/36 ; G02F1/13 ; G09G1/10
摘要:
An improved row electrode driving circuit can drive a matrix type display apparatus without necessitating digital signals transmitted between partial row electrode driving circuits. Each of the partial row electrode driving circuits is allocated with a number. In each of the partial row electrode driving circuits, shift register shifts a pulse signal to sequentially output it from a plurality of outputs. At each time when a predetermined number of clock pulses have been counted, a count signal is produced. When the shift direction is set to the upper direction, a signal indicating the allocated number is produced. When the shift direction is set to the lower direction, a signal indicating a number which is obtained by subtracting the allocated number from a specified number is produced. When this number and the clock pulse count number satisfy a predetermined relationship, the pulse signal is output.
公开/授权文献
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