IPhone 6s screen turned purple, faded to black and now unresponsive?

I walked away for two seconds, came back and my iPhone 6s screen has turned a funny purple colour with vertical lines up and down the home screen. It slowly faded to black and is now completely unresponsive.

I tried resetting it n iTunes etc but it keeps coming up with errors… Help?

You have a hardware problem, nothing you or we can do to help, take it to an apple store, take plenty of money if it is out of warranty

It has failed. Buy a new one.