Oh I see. I thought you meant you stop for a minute and then it does it.
If that is the case, first I have to ask if it is still under warranty, as if it is, I would then contact the manufacturer about it first.
If it isn't, then you yourself (or take it to someone) to open it up and check the ribbon cable that connects the display. Make sure it isn't damaged, bent, torn, pinched, etc. And also disconnect it (both ends) and then carefully reconnect it. That may well fix the issue.