weird transparent glitches on my note 4 screen, how I can fix it?

I have sprint galaxy note 4 (sm-n910p) that works successfully, but with one problem. The problem in the screen that splits to normal part in the top and transparent glitch part in the bottom. I don't know the reason of this glitch and I need your help please to remove it..

I try the following solutions but they don't solve problem:

1- I added new original stock firmware... and the problem still same..

2- I did a hard reset... and no change..

Please anyone help me?