Sensing circuit of display device for sensing pixel current
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United States of America Patent
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May 19, 2020
Grant Date -
Mar 1, 2018
app pub date -
Aug 11, 2017
filing date -
Aug 25, 2016
priority date (Note) -
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Abstract
Disclosed is a sensing circuit of a display device for external compensation of an OLED. The sensing circuit includes a current receiving unit configured to receive a pixel current containing a leakage current, convert the pixel current at a preset current ratio, and output the converted pixel current; a current source unit; a current sinking unit; a current detection unit; and a detection signal output unit configured to sample an offset voltage corresponding to the leakage current using the detected current.
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