My ipad wasn't into water or crashed or anything
  This morning, while I was playing, the screen suddenly changed to this white. I still can use it but the problem is negative color is on the white spot while the outline is fine (without white spot). I used to have this problem before and it returned back to normal. But today, it still got the white like this. Invert color is off. The screen is white, a few minutes later the outline will change back but the middle is still negative. I'm tired of this augh
  pic: http://imgur.com/TjWFTjI
  http://imgur.com/Y3gOyKn
  Read more: My ipad screen is white and has negative color?