This is a guest post by Dr. Guillaume Chansin, founder and principal consultant at Irimitech Consulting
New sensor technologies are being developed specifically for the integration of fingerprint scanning functionalities with OLED displays. The recent announcements indicate that the industry is moving away from capacitive sensors to focus their efforts on optical or ultrasonic detection. For display manufacturers, this could even present opportunities to innovate and offer their own solutions.
Once a premium feature, fingerprint sensors have become almost standard on smartphones. However, the latest design trend is to remove the bezels around the display, leaving no room for the fingerprint sensor. Some OEMs made the choice to move the sensor to the back of the device, which is not always convenient (for instance when mounted on a car dash).