Rohinni has created a way to print lighting and apply it to any surface. via FastCoLabs:
In its current state, Lightpaper is manufactured by mixing ink and tiny LEDs together and printing them out on a conductive layer. That object is then sandwiched between two other layers and sealed. The tiny diodes are about the size of a red blood cell, and randomly dispersed on the material. When current runs through the diodes, they light up.
The promise of thin lighting has been simmering for a while, thanks largely to breakthroughs in OLED technology. But nothing viable has come to market, and Lightpaper is much thinner than OLED—which has been able to get TVs down to a fraction of an inch thick—and is lower cost and has a life-span of around 20 years, like LEDs.