Patent ID: 10546175

Abstract:
An optical fingerprint module comprises: an optical fingerprint sensor, the optical fingerprint sensor having a non-opaque substrate and a device layer located on a surface of the non-opaque substrate, the device layer having a pixel area, the pixel area having a plurality of pixels, each pixel having a non-opaque area and a light blocking area, the light blocking area having a photosensitive element, the non-opaque area enabling lights to transmit through the pixel area of the device layer; a protection layer located above the entire optical fingerprint sensor; and a backlight source located right under the pixel area, the backlight source and the optical fingerprint sensor being disposed with an interval, an included angle formed between light emitted from the backlight source and an upper surface of the protection layer being mainly a right angle or a near-right angle. The optical fingerprint module has an improved structure and enhanced performance.