<img src="https://techcrunch.com/wp-content/uploads/2007/01/Brick.
The screen uses Samsung's Amorphous Silicon Gate, and makes the 400ppi display even better than a 40-inch HDTV, which has only 40ppi. These will have a viewing angle of 75 degrees and a contrast ratio of 300:1. However, having such a high resolution on a phone screen will probably mean text messages are even harder to read.