Driving method for reducing response time of twisted nematic liquid crystal displays and super twisted nematic liquid crystal displays
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United States of America Patent
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Issued Date -
Aug 21, 2008
app pub date -
Feb 20, 2007
filing date -
Feb 20, 2007
priority date (Note) -
Abandoned
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Abstract
The present invention discloses a driving method for reducing the response time of TN LCD and STN LCD, wherein a dynamic picture judgment mechanism is arranged behind the RGB data bus and used to compare the current picture with the previous picture; if the pictures are different, an over-driving compensation voltage is output N times within each refresh time of the data bus, and the over-driving compensation voltage is flexibly higher or lower than the original output voltage. Thereby, the liquid crystal can twist to attain the target brightness within a shorter time. Therefore, the present invention can solve the problem of the blurring phenomenon resulting from a too long response time of PM-LCD (such as TN LCD and STN LCD).
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