Zenfone6 death screen diagonal problem

Judging from the front, a good sense of color Zenfone6 quite ready, but tried viewing angle. Mainly for the left to see a bluish, yellowish look to the right. If you are looking diagonally left or right along the diagonal of view, cast quite powerful.

This situation has affected the usual cast using the phone in the evening after lying in bed using a mobile phone when the phone is generally in the upper chest, look at the screen from the bottom up like sight, this time as long as the screen left or right a little biased, can obviously felt the screen cast.
 
Here are the pics (Zenfone 6 and Asus Padfone Infinity)