Why is my display blured and have some lines on it?

My display on my Canon Powershot A2200 HD is blured and have some kind of purple lines on it, the pictures are good, when I transfer the pictures on the PC and look at them, they are all good, but only the display is kinda blured and purple a bit, I can't understand what's wrong with it. I did nothing wrong, please help me, thanks. :(