Adjustment of liquid crystal display voltage
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United States of America Patent
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Aug 26, 2014
Grant Date -
Sep 22, 2011
app pub date -
May 27, 2011
filing date -
Apr 24, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Drive voltages of a liquid crystal display are adjusted based on one or more environmental conditions. The pixel drive voltages may be adjusted based on temperature. A pixel voltage may be varied such that it is a higher voltage at relatively lower temperatures and a lower voltage at relatively higher temperatures. The window voltage may be varied based on temperature. The window voltage may be stepped through different values within a display phase. The window voltage may be varied during a blanking period of the display phase such that the pixel sees a relatively larger voltage to obtain a desired initial state more quickly. Then, during a light modulating time period, the window voltage may be stepped such that there is a lower voltage field for holding the state of the pixel.
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