发明名称 |
Gamma voltage output circuit of source driver |
摘要 |
A gamma voltage output circuit of a source driver includes a reference voltage generation unit configured to generate upper and lower reference voltages; and upper and lower gamma buffers configured to stabilize and output the reference voltages. The lower gamma buffers include a first gamma buffer having a first operational amplifier which operates as a rail amplifier in a region between a positive power supply voltage and a ground voltage to receive a first lower reference voltage of a positive voltage region and output a first gamma voltage of the positive voltage region, and the upper gamma buffers include a second gamma buffer having a second operational amplifier which operates as a rail amplifier in a region between the ground voltage and a negative power supply voltage to receive a first upper reference voltage of a negative voltage region and output a second gamma voltage of the negative voltage region. |
申请公布号 |
EP2355079(A1) |
申请公布日期 |
2011.08.10 |
申请号 |
EP20110151443 |
申请日期 |
2011.01.19 |
申请人 |
SILICON WORKS CO., LTD. |
发明人 |
AHN, YONG SUNG;CHOI, JUNG MIN |
分类号 |
G09G3/20 |
主分类号 |
G09G3/20 |
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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