Strange yellow line show up on my laptop's screen

First of all , my Studio15 arrived last two month ago,there was some bluetooth problem but i solved it.This is something great.But now another new problem appearred.When i switch on my laptop,there is a vertical yellow straight line appear on the right side of my laptop screen.This line is really annoying me.The questions i wanna ask is what cause the vertical yellow straight line appear and how do I solve it?