OPERATING METHOD OF OPTICAL FINGERPRINT SENSOR, OPERATING METHOD OF ELECTRONIC DEVICE INCLUDING THE OPTICAL FINGERPRINT SENSOR, AND DISPLAY DEVICE INCLUDING THE OPTICAL FINGERPRINT SENSOR

摘要

An operating method of an optical fingerprint sensor, an operating method of an electronic device including the optical fingerprint sensor, and a display device including the optical fingerprint sensor are disclosed. The method of operating a fingerprint sensor, wherein the fingerprint sensor senses a fingerprint image based on light reflected from a fingerprint, may include transmitting a first signal indicating a first request to turn on light emission, to a display driving circuit which drives a display panel disposed on the fingerprint sensor, scanning an object on the display panel, based on light irradiated from the display panel, and transmitting, to the display driving circuit, a second signal indicating a second request to turn off the light emission.