Drive circuit of display and method for calibrating brightness of display
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United States of America Patent
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Aug 20, 2013
Grant Date -
Jul 1, 2010
app pub date -
Nov 9, 2009
filing date -
Dec 31, 2008
priority date (Note) -
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Abstract
A drive circuit of a displayer for driving at least a pixel, including: an output stage coupled to the pixel and controlled by a pixel signal to switch an output voltage on the pixel; a calibration device coupled between the output stage and the pixel and including an input end controlled by a bias voltage further calibrating the brightness of the pixel; a stabilizing device coupled between the input end of the calibration device and the pixel signal for stabilizing the voltage on the input end of the calibration device to be at the level of the bias voltage after a variation; and a accelerating device coupled between the stabilizing device and a voltage source for generating the bias voltage and accelerating the speed stabilizing the voltage on the input end of the calibration device to be at the level of the bias voltage.
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