Device and method for driving a TFT-LCD
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United States of America Patent
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Apr 16, 2002
Grant Date -
N/A
app pub date -
Jun 3, 1999
filing date -
Jun 3, 1998
priority date (Note) -
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Abstract
A device and method for driving a liquid crystal display (LCD). The device includes a mixer for temporarily storing digital picture signals of a plurality of channels and outputting the digital picture signals according to a predetermined order of polarity based on polarity control data, a latch unit for latching the digital picture signals output from the mixer based on predetermined pulse signals, a digital-to-analog (D/A) conversion unit for converting the digital picture signals output from the latch unit based on predetermined reference voltage signals, a storage unit for adding a predetermined value to the output signal of the D/A conversion unit when processing positive polarity signals, and a switching unit generating first and second polarity signals in a predetermined order based on the output signals of the storage unit.
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