发明授权
- 专利标题： Liquid crystal driving device
- 专利标题（中）： 液晶驱动装置
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申请号： US630991申请日： 1996-04-12
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公开(公告)号： US5801671A公开(公告)日： 1998-09-01
- 发明人: Masakazu Kobayashi , Tatsuya Nakai , Hiroyuki Hirashima , Masahiko Monomohshi , Yoshiki Sano
- 申请人： Masakazu Kobayashi , Tatsuya Nakai , Hiroyuki Hirashima , Masahiko Monomohshi , Yoshiki Sano
- 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： JPX7-087168 19950412
- 主分类号： G02F1/133
- IPC分类号： G02F1/133 ; G09G3/20 ; G09G3/36
摘要：
A liquid crystal display panel 51 of N rows.times.M columns is driven by a segment driver 52 with two different voltages VS1, VS2, and by a common driver 53 with three voltages VC1, VC2, VC3. An output voltage waveform of the segment driver 52 is modulated for gradation display. The two different voltages VS1, VS2 are selected to be low voltages so as not to require high withstand voltage process in the segment driver 52, which makes it easier to integrated to a large scale in the case of realizing the segment driver 52 as a semiconductor integrated circuit.