ZTE has officially announced the world's first commercial phone with a behind-the-screen camera: the ZTE Axon 20 5G. Shrinking phone bezels have made locating the front camera a major design point of phones for the past few years. We've seen big camera notches, small camera notches, round camera cutouts, and pop-up cameras. Rather than any of those compromises, the under-display camera lets you just put the camera under the display, and by peering through the pixels, you can still take a picture. It's the holy grail of front-camera design.
As we've seen in explainers from Xiaomi, these under-display cameras work by thinning out the pixels above the display, either by reducing the number of pixels or by making the pixels smalRead More – Source