Au Optronics Corporation

Yu-Jing Chen

Yi-Hsin Lin

Chun-Ku Kuo

Po-Yuan Liu

Hung-Wen Chou

Teng-Fu Tung

Tsun-Chien Cheng

Chia-Ching Chen

A fingerprint recognition device with a wake-up function is provided, which includes a signal wiring, a sensing array at least partially surrounded by the signal wiring, a first electrode, and a control circuit. The control circuit is coupled with the signal wiring, the first electrode, and the sensing array. The control circuit detects capacitance between the signal wiring and the first electrode in a first operation mode to generate a sensing result, and determines whether an object is on or near the sensing array according to the sensing result. If the control circuit determines that the object is on or near the sensing array, the control circuit switches from the first operation mode to a second operation mode. The control circuit drives the sensing array by the signal wiring to generate multiple sensing signals in the second operation mode, and calculates a sensed image according to the multiple sensing signals.

Fingerprint recognition device with wake-up function and driving method thereof

A touch electrode layer includes a plurality of touch electrodes, a plurality of first bridges, a plurality of second bridges, and an insulation layer disposed between the first bridges and the second bridges. The touch electrodes are arranged in rows and columns. The first bridges electrically connect the touch electrodes located in the same row to form a plurality of first touch series. The second bridges electrically connect the touch electrodes located in the same column to form a plurality of second touch series. Each touch electrode includes a top electrode pattern and a bottom electrode pattern stacked with each other. A normal projection in a XY plane of an edge of a top surface of the top electrode pattern and a normal projection in the XY plane of an edge of a top surface of the bottom electrode pattern are not completely overlapped.

Touch electrode layer

Growing community of inventors

Hsin-Chu, Taiwan

Yu-Jing Chen