Galaxy S4 sudden hardware issue(?)

Hello!

My Samsung Galaxy S4 (i9505) suddenly crashed while I was playing a game and got into a boot loop. The screen goes all sorts of crazy on boot, so I think it's a hardware problem:




postimg.org/gallery/20d1m6su0/

There's also a sweet-spot on the screen just above the Samsung S which makes the screen kaleidoscope a bit more when pressed.

I was running a custom ROM (flashed via TWRP), rooted and running Xposed . The ROM was a custom build of vanilla Android 5.1.1 which I found in a ROM thread on here.

I assume some piece of hardware has toasted or come loose. Has anyone seen anything like this before? Might it be repairable?

I look forward to the good news :D

Thanks!