Systems, methods, and devices for defect detection in capacitive touch panels
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United States of America Patent
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Mar 12, 2024
Grant Date -
Sep 14, 2023
app pub date -
Mar 10, 2022
filing date -
Mar 10, 2022
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Abstract
Systems, methods, and devices detect defects in touch panels. Methods include scanning, using a designated integration window, a plurality of electrodes of a sensing device to obtain a plurality of measurements and determining a plurality of variance values for the plurality of electrodes based on the plurality of measurements, the plurality of variance values identifying variances in the plurality of measurements between adjacent sense locations of the sensing device. Methods also include determining if a defect is present in the sensing device based, at least in part, on a comparison of the plurality of difference values with the plurality of threshold values.
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