Organic light emitting display and sensing method therefor
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United States of America Patent
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Oct 2, 2018
Grant Date -
Feb 1, 2018
app pub date -
Jul 20, 2017
filing date -
Jul 29, 2016
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Abstract
The sensing method for an organic light-emitting display comprises: defining a pixel group comprising a reference pixel and two or more valid pixels, among a plurality of pixels arranged on a horizontal line; obtaining a black level current sensing value by applying a black level data voltage to the reference pixel; obtaining a current sensing value for a given gray level by applying a data voltage for the given gray level higher than the black level to each of the valid pixels; and obtaining a pixel current sensing value by subtracting the black level current sensing value from the current sensing value for the given gray level to eliminate common noise.
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