Graphene has great mechanical and electronic properties (it is basically an atom-thick strong carbon nanotube), but up until now it's been very difficult to make in a large size. Now scientists say they can make a centimetre-scale samples of the stuff.

If/When this technique actually works, it could lead to create films that are transparent and flexible - which could be used in displays (also in solar cells).One of the problems with flexible OLEDs is the backplane. Some work on metal-foil, and some on plastic, but Graphene could prove to be the ideal material. 

Atomic Force Microscopy for next-gen OLED processesAtomic Force Microscopy for next-gen OLED processes