Mitsubishi Chemical and Sumitomo Chemical are currently working together on two different versions of a "molecular soup" that can be applied to a surface creating either a solar cell and/or OLED screen 100nm thick. The solar charging properties of the compounds mean that the OLED screen could run under the power that it generates itself for an indefinite amount of time. The researchers believe that they can have a working prototype up and running within two years.
Source: Tech Radar
Please explain OLED?
OLEDs are organic light emitting diodes. In an OLED the light emitting layer of the diode is an organic polymer rather than an inorganic crystal.
They generally emit less light per area than traditional solid-state LEDs – so, OLEDs are better for area lighting and inorganic LEDs for point lights.
OLEDs do not need backlighting like LCDs, so they drawer much less power and can be much thinner.