This week the electronics giant showed off their new Sensor OLED Display at a recent electronics expo.

They say the type of sensors like the ones used in smartphones are currently added to displays via a separate module, whereas this one is integrated directly into the screen, allowing for sensing anywhere on the panel, with multi finger tracking for things like blood pressure measurements, heart monitors, and fingerprint sensing.

https://www.youtube.com/watch?v=4lyh_x8elXU
https://news.samsungdisplay.com/34036