Patent ID: 10331935

Abstract:
An optical fingerprint module includes: an optical fingerprint sensor, wherein the optical fingerprint sensor includes at least one pixel region where photosensitive pixels are disposed; each of the photosensitive pixels includes an optical fingerprint sensing device, a non-opaque region and an opaque region, wherein the optical fingerprint sensing device is disposed in the opaque region, and all the optical fingerprint devices are arranged in rows and columns; and at least one point-shaped backlight source, wherein each of the at least one pixel region corresponds to one of the at least one point-shaped backlight source; in the pixel region, a largest square region whose center is closest to the corresponding point-shaped backlight source is selected, and optical fingerprint sensing devices are divided into different device groups, and optical fingerprint sensing devices in different device groups are set differently, which improves performance of the optical fingerprint module.