FINGERPRINT IDENTIFICATION PIXEL DRIVING CIRCUIT AND METHOD FOR DRIVING THE SAME, DISPLAY PANEL

    公开(公告)号:US20230101504A1

    公开(公告)日:2023-03-30

    申请号:US17043318

    申请日:2020-04-22

    Abstract: There is provided a fingerprint identification pixel driving circuit, including: a fingerprint signal identification element configured to transmit an ultrasonic wave and receive a reflected ultrasonic wave according to a voltage of a first node and a signal of a second signal terminal to generate a sensing signal; a drive reading element configured to drive a light emitting element according to the voltage of the first node and generate a sensing current according to the sensing signal; a fingerprint signal reading element configured to output the sensing current; a pixel charging element configured to write a signal of a data line terminal to a storage element; the storage element configured to store the sensing signal or the signal of the data line terminal; a light emitting control element configured to control light emitting of the light emitting element; and the light emitting element configured to emit light.

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