APPLE INSIDER
Apple is continuing to refine its work on light sensors that could work through a display, likely for use in a future version of Face ID or Touch ID on an iPhone.
Credit: AppleInsiderCurrent iPhone models, like the iPhone 12 and iPhone 12 Pro series, house their Face ID system and sensor suite in a notch at the top of the display. Apple, however, is working on a system that could ultimately allow it to minimize or nix the notch entirely.
Source: APPLE INSIDER