LAS VEGAS—LG's rollable OLED display is one of the most talked-about products at CES this year, but if you visit the Korean tech giant's massive booth inside the Las Vegas Convention Center hoping to get a peek at the thing, you'll be let down.

It's not on display at LG's booth, and the company is being seriously selective about who gets to see the futuristic panel. I snagged an invite, and it turned out to be one of the coolest things I've seen in the three years I've covered CES.

This thing was hidden away like Area 51. I entered through a door that read "No Photos," thinking "crap, I was told to take photos and videos of this."

And then it was in front of me. Two of them actually.

A woman quickly demoed how you can hold either side of the 18-inch display and move it like a wave.

If I didn't know any better, I might have mistaken the thing for a piece of shiny craft paper – something to cut out and mount behind photos in a scrapbook. It's that thin and malleable. She then completely rolled the display into a cylinder before grabbing one end and letting it free, returning it to its original flat shape.

A second unit was already set up on some sort of base, rolled up and displaying images of city skylines.

Despite what the sign on the door said, the team let me snap a couple photos and shoot a short video before ushering me out.

According to LG Display, the rollable OLED has a HD resolution of 1,200 by 810 with almost 1 million megapixels. It can be rolled up to a radius of 3cm without affecting the function of the display.

"This proves that LG Display can bring rollable TVs of more than 50 inches to the market in the near future," according to the company. Check it out in action below.