Invention Grant
- Patent Title: Method and circuit for LCD panel flicker reduction
- Patent Title (中): LCD面板闪烁方法和电路的减少
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Application No.: US10395595Application Date: 2003-03-25
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Publication No.: US06933917B2Publication Date: 2005-08-23
- Inventor: Te Cheng Chung , Seok Lyul Lee , Tean Sen Jen , Ming Tien Lin
- Applicant: Te Cheng Chung , Seok Lyul Lee , Tean Sen Jen , Ming Tien Lin
- Applicant Address: TW
- Assignee: Hannstar Display Corporation
- Current Assignee: Hannstar Display Corporation
- Current Assignee Address: TW
- Agency: Morris Manning & Martin
- Agent Tim Tingkang Xia, Esq.
- Priority: TW91112397A 20020607
- Main IPC: G02F1/133
- IPC: G02F1/133 ; G09G3/20 ; G09G3/36

Abstract:
A method and circuit for LCD panel flicker reduction. The invention relates to an adjustment circuit to reduce an LCD panel flicker, wherein the LCD panel has a plurality of scan lines and a plurality of data lines. In one embodiment, the adjustment circuit includes a variable resistor, and a plurality of impedance adjustment devices, each with impedance and having a control terminal to be coupled with a DC voltage source through the variable resistor, a power terminal to be coupled with a common voltage source, and a scan line terminal to be coupled with a scan line, wherein the impedance of each of the impedance adjustment devices can be varied when the resistance of the variable resistor is varied. Each of the impedance adjustment devices in one embodiment has a transistor. The impedance of each of the impedance adjustment devices is much higher than the impedance of the corresponding scan line to allow the LCD to be operated at higher frequencies.
Public/Granted literature
- US20030227431A1 Method and circuit for LCD panel flicker reduction Public/Granted day:2003-12-11
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