We also develop since 2.5 years a thin backlight LED lighting technology and do observe the market closely. I am in the same boat here with lots of skepticism at least comparing to the photoshop pictures and expectations set. As the articles says it is some ink combined with LED lights, which will require some thickness as there is a silicon, die attach, some sort of bonding and a base carrier. http://www.businessinsider.com/lightpaper-technology-prints-... With the thickness of the material thin as paper there is very limited optical scattering possible, which would require enormous amount of LEDs to compensate for. To me something does not add up here or it is truly a revolutionary technology, but I do know from our optical simulations ink printing alone won’t make that possible.