| 摘要 |
A fingerprint-sensing device of thin film transistor type that is capable of minimizing an insulation breakage between thin film transistor lines includes a sensor for sensing contact of a fingerprint to the sensor array and for generating a sensing signal when said fingerprint is in contact with the sensor array. In the device, a sensor array converts a light reflected from a fingerprint into a current quantity upon contact of the fingerprint. A driving voltage supply applies a driving voltage to the sensor array. A controller responds to the sensing signal from the sensor to generate control signals for controlling the driving voltage supply.
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