Does it doe this if you move the screen backwards and forwards? Is it old? Could be the cable ribbon to the screen.
It is not old. This is it http://www.bestbuy.com/site/asus-vivobook-13-3-touch-screen-laptop-intel-core-i5-6gb-memory-500gb-hard-drive-silver/2990013.p?id=1219085427753&skuId=2990013&st=asus%20vivobook&cp=1&lp=1
I would try to return it to Best Buy or send it to asus and see what they can do. Good luck with that, though. I haven't heard great stories from ASUS support.