Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-08-23
2005-08-23
Wu, Xiao (Department: 2674)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S100000
Reexamination Certificate
active
06933917
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.
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Chung Te Cheng
Jen Tean Sen
Lee Seok Lyul
Lin Ming Tien
Hannstar Display Corporation
Morris Manning & Martin
Tingkang Xia, Esq. Tim
Wu Xiao
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