发明名称 |
Operational amplifier and display panel driving device |
摘要 |
An operational amplifier includes an output circuit and a differential circuit. The output circuit outputs a voltage in a voltage range determined either from a highest voltage that is an upper limit of a predetermined power source range, or from a lowest voltage that is a lower limit of the predetermined power source range, to an intermediate voltage that is a voltage between the highest voltage and the lowest voltage. The differential circuit includes a first MOS transistor to which a driving signal for driving a display panel is input and a second MOS transistor to which a given input signal is input. The first MOS transistor and the second MOS transistor are connected in parallel, and a differential input-permissible-range of the differential circuit is wider than the voltage range of the output circuit. |
申请公布号 |
US8605070(B2) |
申请公布日期 |
2013.12.10 |
申请号 |
US20090620380 |
申请日期 |
2009.11.17 |
申请人 |
NISHIMIZU MANABU;HIRAMA ATSUSHI;HIGUCHI KOJI;OKI SEMICONDUCTOR CO., LTD. |
发明人 |
NISHIMIZU MANABU;HIRAMA ATSUSHI;HIGUCHI KOJI |
分类号 |
G09G5/00 |
主分类号 |
G09G5/00 |
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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