Invention Grant
- Patent Title: Gamma voltage generator and control method thereof and liquid crystal display device utilizing the same
- Patent Title (中): 伽马电压发生器及其控制方法及使用其的液晶显示装置
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Application No.: US13370570Application Date: 2012-02-10
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Publication No.: US08232945B2Publication Date: 2012-07-31
- Inventor: Hung-Min Shih , Chung-Kuang Tsai
- Applicant: Hung-Min Shih , Chung-Kuang Tsai
- Applicant Address: TW Hsinchu
- Assignee: AU Optronics Corp.
- Current Assignee: AU Optronics Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Thomas|Kayden
- Priority: TW94108926A 20050323
- Main IPC: G09G3/36
- IPC: G09G3/36
Abstract:
A gamma voltage generator can control brightness of a first color pixel unit and a second color pixel unit. A first potential divider is coupled between a first node and a second node for generating a first main gamma voltage. At least one second potential divider is coupled between the second node and a third node for generating a first sub-gamma voltage and a second sub-gamma voltage. The brightness of the first color pixel unit is controlled by the first main gamma voltage and the first sub-gamma voltage. The brightness of the second color pixel unit is controlled by the first main gamma voltage and the second sub-gamma voltage.
Public/Granted literature
- US20120139971A1 GAMMA VOLTAGE GENERATOR AND CONTROL METHOD THEREOF AND LIQUID CRYSTAL DISPLAY DEVICE UTILIZING THE SAME Public/Granted day:2012-06-07
Information query
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