note 8

Samsung note 8. Is this a screen fault? As you can see. On the right edge near the top there is a light stripe. This does not appear if I rotate the phone and play a video. Is this normal or is it a fault. Thanks

Well, not too sure if this is the right place to post, but I need some opinions. There's currently a Note 8 selling for surprisingly cheap on eBay, 'apparently' in mint condition, but the phone has no service. Now, I haven't gone for it yet, and if I get into contact with the seller i'll ask...