LG has shown off the world's first 77-inch flexible OLED display that is not only transparent, but has a native 4K resolution.
The impressive display is super-thin, with 40% transparency and flexible, so it can be rolled into a tube that is just 6 inches across. Considering the 77-inch display is close to 6.5-foot tall (diagonally), this is impressive. For marketing and display purposes, a tall 4K-capable flexible OLED is great - imagine walking past it in retail, it would catch your eyes no matter what.
For marketing on the go, people can roll it up and take them away with them easily. Shows like CES and Computex would be a boon for flexible, rollable displays - with E3, PAX, and other trades shows making perfect sense for these huge flexible displays.