My iPhone 5c screen turns purple if I put brightness up
Hello, I'm having trouble with my iPhone 5c, these days I've noticed that when I'm using my iphone and I have white color on the screen, it leaves white lines that cross the screen and after some minutes the touchscreen would not respond and I was forced to block it yo fix the problem. Then I had to put more brightness on the screen and suddenly it turned purple and I couldn't do anything, was forced to put the brightness on minimal to use the phone without issues, what's going on?