发明名称 |
Common voltage generation circuit, power supply circuit, display driver, and common voltage generation method |
摘要 |
A common voltage generation circuit includes a first operational amplifier which outputs an amplitude voltage of a common voltage based on a first power supply voltage, a second operational amplifier which outputs a high-potential-side voltage of the common voltage based on the first power supply voltage, and a low-potential-side voltage generation circuit which generates a low-potential-side voltage of the common voltage which is lower in potential than the high-potential-side voltage for the amplitude voltage by a charge-pump operation. The common voltage generation circuit supplies the high-potential-side voltage or the low-potential-side voltage to a common electrode which faces a pixel electrode specified by a scan line and a data line of an electro-optical device through an electro-optical substance. |
申请公布号 |
US2005195149(A1) |
申请公布日期 |
2005.09.08 |
申请号 |
US20050060623 |
申请日期 |
2005.02.17 |
申请人 |
ITO SATORU |
发明人 |
ITO SATORU |
分类号 |
G05F3/24;G09G3/36;(IPC1-7):G09G3/36 |
主分类号 |
G05F3/24 |
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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