I've recently repaired a similar Samsung phone (a galaxy S9+ edge if I remember correctly).

It has been extremely difficult to source a replacement screen. I first procured some from China from sellers that promised exact same tech. Although their screen looked when displaying stationary images it fell apart during such simple tasks as scrolling a Web page quickly (it became blurry). Considering that the phone was being repaired to use GearVR this was unacceptable (blurry screen every time you move your head).

Then I finally found a non-burned-out old screen. I fitted that and it works fine, but it puts artificial limit on the lifetime of these phones. They are really nice devices that are destined to a landfill, because they don't want to sell few screens.