TOUCH SENSOR AND METHOD OF DRIVING THE SAME
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United States of America Patent
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Issued Date -
Jul 20, 2017
app pub date -
Sep 2, 2016
filing date -
Jan 18, 2016
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Abstract
A touch sensor including a touch sensing unit including drive electrodes and sensing electrodes, a drive signal generation unit that applies parallel drive signals to the drive electrodes, differential amplifiers that receive sensed output values output from the sensing electrodes according to the parallel drive signals and a reference output value, and a touch processing unit that determines an occurrence of a touch according to differential output values of the differential amplifiers.
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