| 摘要 |
<p>A fingerprint image input device has a substrate, signal sensing electrodes arranged on one side of the substrate, and light-emitting elements arranged on the same side of the substrate. The capacitance between the signal sensing electrodes and a finger is measured, and according to the result of the measurement, the mode is switched between a fingerprint input mode for capturing a fingerprint image and a fingerprint image display mode for displaying the fingerprint image by causing the light-emitting elements to emit light depending on the capacitance.</p> |
