Circuit and driving method for correcting tone output of a pixel
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United States of America Patent
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Jun 3, 2014
Grant Date -
Mar 3, 2011
app pub date -
Aug 3, 2010
filing date -
Aug 26, 2009
priority date (Note) -
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Abstract
A display device capable of correcting display of deteriorated pixels without causing a nonconstant tonality or improper color balance is provided. The display device includes a display section with plural pixels; signal lines; a data generation circuit; a D/A converter for sequentially converting a tone data to an analog voltage and outputting the analog voltage to the signal lines; a switch circuit for outputting a signal corresponding to the pixel state by switching the signal lines; an A/D converter for sequentially detecting the signal; and a detection circuit for estimating the state of the pixel from the signal. The D/A converter includes an output range setting means for setting an allowed output range of the analog voltage. The display device includes an output correction circuit that controls the output range setting means in accordance with the state of the pixel detected by the detection circuit.
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