I have an HTC one max that i got about a year ago. I've always kept it in a case and taken good care of it. Recently i noticed a spot on the lower right of the screen. You can only see it when the screen is turned off. When i wipe the screen a certain way it goes away but it always comes back. Also when the screen is on and i go to a white colored page, at certain angles i can see a kind of rippled array of colors. Sorry i can't word it better as it is very hard to describe but it just looks kind of "trippy" where the spot is on my phone screen. If there are any other details i can give to provide better help I'd be happy to oblige