Oneplus ONE screen problem (Part of screen not working)

Hello,

After i bought the Oneplus ONE, i experienced some screen issues
As you see in the screenshot, a part of my screen isn't working,
there aren't any marks on the screen and the screen isn't cracked.

link is:
h ttp:/ /imgur. com/a/YdQ28
i added a space because i cant add links

I hope there is a solution.

thanks

Kyllian