DOT CORRECTION METHOD AND SYSTEM FOR LED DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Jan 5, 2017
app pub date -
Apr 15, 2016
filing date -
Jul 3, 2015
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Abstract
The present disclosure provides a dot correction method for a LED display device. The LED display device has a plurality of LED units arranged in an array. The method comprises providing driving currents to the plurality of LED units in columns or rows of the LED display device to make the LED units emit light; obtaining non-uniform brightness information corresponding to the LED units in columns or rows of the LED display device; and adjusting the driving current provided to each LED unit according to the non-uniform brightness information, in order to make the brightness of each LED unit be the same.
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