Source: http://gizmodo.com/oled-wallpaper-could-be-the-future-of-lighting-1643373103
It's the Star Trek-inspired future we were promised—walls that glow and change color, perhaps with just a gentle voice command. And it's finally (almost) possible thanks to a series of advances in OLED sheets. This new lighting solution also uses half as much energy than existing fluorescent lights. It is, however, pretty expensive.