If light was available on a flexible sheet as thin as paper, how could you use it ? Lightpaper, developed by Rohinni, enables this possibility.
Examples using this technology are expected to appear in consumer products around the mid 2015.
More information can be found at
Further reading:
http://www.fastcolabs.com/3038890/rohinnis-lightpaper-is-incredibly-thin-and-printable
http://uk.businessinsider.com/lightpaper-technology-prints-light-like-paper-2014-11