LG G4 left half of screen gone black ???

I purchased an LG G4 H818P dual sim from Dubai. I've used the phone for about 2 weeks now and suddenly for absolutely no reason the left half of my screen has gone full black (split down the middle). The touch still works though. I have tried a hard reset which didn't work. On some forums people with the same problem said they removed the screen protector and it solved the problem. I did likewise but to no avail. Can anyone assist urgently please.