This is what
@advexure posted:
A warning to all folks unboxing their SC units. As you will see in this picture below, the screen comes with a screen protector installed on it already but it has a tab (seen in upper left of display) to pull away a film on the screen protector. We pulled the tab a bit too fast as we were excited and ended up bringing the screen protector up from the screen surface along with the film. We then sat it back down and of course now have bubbles, dust and fuzzies under the screen protector on half the screen.
Take it slow and make sure you are pulling up just the protective film!