BIOMETRIC IDENTIFICATION DEVICE HAVING SENSOR ELECTRODES WITH MASKING FUNCTION
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United States of America Patent
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Issued Date -
Feb 4, 2016
app pub date -
Jul 30, 2015
filing date -
Aug 1, 2014
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Abstract
A biometric identification device includes a substrate, plural sensor electrodes; plural selectors, plural selection traces, plural sensing signal readout lines, and a control unit. The sensor electrodes disposed on the substrate. Each selector corresponds to one sensor electrode and has a first terminal, a second terminal and a third terminal. The first terminal is connected to a corresponding sensor electrode. Each selection trace is connected to the second terminal of at least one selector. Each sensing signal readout line is connected to the third terminal of at least one selector. The control unit is connected to the selectors through the selection traces and the sensing signal readout lines, so as to read sensed signals of the sensor electrodes. The selectors, the selection traces, and the sensing signal readout lines are disposed below and masked by the sensor electrodes.
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