When ZTE talked about the Axon 20 and how its selfie camera works, it skipped over a few important details. This is the first production phone to have an under-display camera, in case you missed that.
The first hands-on images offer a better look at what goes on behind the curtain. There’s a small square area over the selfie camera, which has a lower pixel density – similar to that of a 720p display instead of 1080p like the rest of the panel.
It also changes up the sub-pixel arrangement to make it easier for the camera to see through. The end result is not quite perfect as you can see where the square is on a flat background.
This area usually shows an empty part of the status bar, so it's hardly noticeable most of the time. Also, a busier background will likely make the square blend in more succesfully.
Leakster Digital Chat Station promises to post more details on what the Axon 20 display is like in person. For now the leakster says that the square area has a separate display driver to make it work.