LCD screen repair

You'll have a better idea than me, but it looked like the underlying glass in the LCD panel was cracked, though that might have been dust smudges. If it's just the overlying plastic coating that's scuffed, it's possible to replace it, but quite tricky. I'm not overly familiar with the panel in question, but often there's several layers of plastic. One is likely a matte effect coating, and the one underneath is probably the polariser sheet. If it's the polariser that's gone (you can tell, because the damaged area where the polariser has gone won't have any colour, will be solid white), you'll need to very carefully replace that (in the right orientation!) without causing air bubbles or other artefacts in the process If it's just the matte coating, just remove it, again very carefully.