https://www.cnet.com/news/synaptics-in-display-fingerprint-sensor-samsung-rumor/

Forget fingerprint scanners that live on the home button or on the back of the phone, why not put one directly into the screen?

That's exactly what one company is trying to do. Fingerprint sensor manufacturer Synaptics just announced that it has begun mass production with a top five Original Equipment Manufacturer (OEM) to produce its new Clear ID FS9500 in-display fingerprint sensor. The announcement doesn't reveal which phone OEM Synaptics is partnering with, but our money is on Samsung.