Samsung tablet black line all the way down the screen on one side

Hello,
Hi can someone help me when I put my samsung tablet on i noticed that qtr of my screen has a black line all the way down the screen on one side, it shivers and i am getting double vision yet on the other side of the screen its perfectly ok
.ICan still can use it on both sides it seems just the icons etc are distorted on one side only !IHave tried different ways to get rid of the line etc but to no avail even looked on the net but found nothing so can any one suggest anything or shall I take it to the shop to be repaired? Its a 10 inch samsung tablet thanks janet