Invention Grant
- Patent Title: Common voltage adjusting circuit for liquid crystal display
- Patent Title (中): 用于液晶显示的公共电压调节电路
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Application No.: US11644307Application Date: 2006-12-21
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Publication No.: US07663595B2Publication Date: 2010-02-16
- Inventor: Chien-Fan Tung
- Applicant: Chien-Fan Tung
- Applicant Address: TW Miao-Li County
- Assignee: Innolux Display Corp.
- Current Assignee: Innolux Display Corp.
- Current Assignee Address: TW Miao-Li County
- Agent Wei Te Chung
- Priority: CN200510121010 20051222
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A common voltage adjusting circuit (200) includes a delta adder (21), a sigma adder (22), a sigma latch (23), and a quantization circuit (24). The delta adder includes a first input terminal configured for receiving a binary signal, a second input terminal, and an output terminal. The sigma adder includes a first input terminal connected to the output terminal of the delta adder, a second input terminal, and an output terminal. The sigma latch includes a first input terminal connected to the output terminal of the sigma adder, and an output terminal connected to the second input terminal of the delta adder and the second input terminal of the sigma adder. The quantization circuit includes a first input terminal connected to the output of the sigma latch, and an output terminal connected to a common electrode of a TFT-LCD.
Public/Granted literature
- US20070146263A1 Common voltage adjusting circuit for liquid crystal display Public/Granted day:2007-06-28
Information query
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