I cant see part of my screen

[Android Central Question]

the top left of my samsung galaxy j2 screen has turned black like a pressing mark you get when you press too hard, and around the mark for about 1/6 of the screen there is a dark yellowish tint to it. I just charged my phone normally the night before without this and when i checked in the morning it had the mark already. I can still press normally on the screen on the area but when anything inside the area it turns white abit before entering the dark spot and when it is near the dark spot it is not visible. pls tell me a way of how to fix this problem or at least what is the problem.

 

[B. Diddy]

Welcome to Android Central! The screen is failing, and that dark spot will probably start spreading fill the whole screen. Back up or sync all important data now, then get the screen replaced (or get a new phone). If the phone is still under warranty, contact Samsung.