Samsung patent for optical in-display fingerprint sensor published
A Samsung patent filed with WIPO for a ‘Biometric sensor and device including the same’ was published today and details the working of an optical in-screen fingerprint scanner.
Spotted by LetsGoDigital, the patent application explains how it is important to maintain a constant distance between an optical sensor and the display for it to work correctly.
Samsung describes a system in which the fingerprint sensor is etched to an opening on a printed circuit board to ensure that a safe distance from the display is maintained. It also describes how Samsung wants to place the sensor under the screen and how the region around the sensor is pressure-sensitive.