Shenzhen Goodix Technology Co., Ltd.

Dayu Ding

Yi Liu

Chao Yuan

Zhichuan Liao

A method for capacitive fingerprint identification. The method is applied to an electronic device with a capacitive fingerprint identification apparatus which has a special-shaped surface. The method includes: obtaining a number of driving signals N(i) of an icolumn of pixel electrodes; and performing signal driving to the icolumn of pixel electrodes to obtain an output voltage according to the number of driving signals N(i), the output voltage corresponds to the capacitor, and the output voltage is configured for fingerprint identification. The present application can controls a column average output voltage of the pixel electrode at a similar level, so as to facilitate algorithmic processing, at the same time, a risk of data saturation with up and down fluctuations is reduced, and thereby the performance of fingerprint identification is improved.

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Shenzhen, China

Dayu Ding