My Lumia screen turned pink

[tariqsaad16]

Hi my Lumia 640 xl screen turned pink and become unresponsive. I quickly pressed the power button but when I opened my mobile again the screen seems to be ok.

 

[anon(9226130)]

This is an Operating System bug in my opinion. Once my Lumia 520's screen's left side replaced with the right side and the right side with the left. That looked funny, and the power button helped.