Invention Grant
- Patent Title: Gamma voltage generating apparatus for generating interpolated gamma voltage and gamma voltage generator thereof
- Patent Title (中): 用于产生内插伽马电压的γ电压产生装置及其γ电压发生器
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Application No.: US12469660Application Date: 2009-05-20
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Publication No.: US08284139B2Publication Date: 2012-10-09
- Inventor: Tzung-Yuan Lee , Chung-Jian Li , Shang-I Liu , Hao-Jan Huang , Shir-Kuan Lin , Wing-Kai Tang
- Applicant: Tzung-Yuan Lee , Chung-Jian Li , Shang-I Liu , Hao-Jan Huang , Shir-Kuan Lin , Wing-Kai Tang
- Applicant Address: TW Hsinchu
- Assignee: Novatek Microelectronics Corp.
- Current Assignee: Novatek Microelectronics Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Jianq Chyun IP Office
- Priority: TW98105256A 20090219
- Main IPC: G09G3/36
- IPC: G09G3/36
Abstract:
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.
Public/Granted literature
- US20100207963A1 GAMMA VOLATGE GENERATING APPARATUS AND GAMMA VOLTAGE GENERATOR THEREOF Public/Granted day:2010-08-19
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