TFT LCD device and driving method with a chopper amplifier that allows offset voltage polarity interlace within one frame
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United States of America Patent
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Feb 22, 2011
Grant Date -
Oct 18, 2007
app pub date -
Aug 10, 2006
filing date -
Apr 13, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A thin film transistor (TFT) liquid crystal display panel driving device and a method thereof are provided. The TFT liquid crystal display panel driving device is characterized by including a modulation signal generator for providing at least one modulation signal to at least one output buffer of a source driver of the TFT liquid crystal display panel. The output buffer(s) has chopper function. Each output buffer changes the offset voltages of the pixels of a same frame under the control of different modulation signals, thus eliminating the effect of the offset voltages of the output buffer(s) on the display quality.
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