发明申请
US20100207963A1 GAMMA VOLATGE GENERATING APPARATUS AND GAMMA VOLTAGE GENERATOR THEREOF
有权
GAMMA电压发生器和GAMMA电压发生器
- 专利标题： GAMMA VOLATGE GENERATING APPARATUS AND GAMMA VOLTAGE GENERATOR THEREOF
- 专利标题（中）： GAMMA电压发生器和GAMMA电压发生器
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申请号： US12469660申请日： 2009-05-20
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公开(公告)号： US20100207963A1公开(公告)日： 2010-08-19
- 发明人: Tzung-Yuan Lee , Chung-Jian Li , Shang-I Liu , Hao-Jan Huang , Shir-Kuan Lin , Wing-Kai Tang
- 申请人： Tzung-Yuan Lee , Chung-Jian Li , Shang-I Liu , Hao-Jan Huang , Shir-Kuan Lin , Wing-Kai Tang
- 申请人地址： TW Hsinchu
- 专利权人： NOVATEK MICROELECTRONICS CORP.
- 当前专利权人： NOVATEK MICROELECTRONICS CORP.
- 当前专利权人地址： TW Hsinchu
- 优先权： TW98105256 20090219
- 主分类号： G09G5/10
- IPC分类号： G09G5/10
摘要：
A gamma voltage generator including an operation amplifier, a first reference impedance unit, a second reference impedance unit, a first variable impedance unit, a second variable impedance unit, and a select unit is provided. The operation amplifier generates an amplified output voltage. The first reference impedance unit receives a first gamma voltage, and the second reference impedance unit receives a second gamma voltage. The first variable impedance unit provides a first variable impedance, and the second variable impedance unit receives the first gamma voltage and provides a second variable impedance. The select unit selects the amplified output voltage or the first gamma voltage according to a control signal to generate an interpolated gamma output voltage.
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