OLED??

OLED is a light emitting diode with Electroluminescent layer of organic compound film which emits light in response to electric current.
It is differntiated based on polymers.These are of two types, Active Matrix LED (AMLED) and Passive Matrix LED (PMLED).
These are also used as advanced solar panels.
OLED technology provides for higher efficiency than today’s standard lighting. With no mercury and low power consumption OLED is the next evolution in lighting for a greener planet.

# Suitable for thin, lightweight, printable displays
#Broad color range
# Good contrast
# High resolution(
# Fast switching (1-10 μs)
# Wide viewing angle
# Low cost of materials
SMALL MOLECULAR OLED
# Made by vacuum evaporating small molecules to the substrate
  similar to that used in semiconductor manufacturing
# Well proven on fabrication of up to about 15 inches in diameter
  (shadow mask)
# Crystallization due to low glass transition temperature shortens
   lifetime and reliability
POLYMER OLED
# Made by depositing the polymer materials on substrates through an
  inkjet printing process or other solution processing methods under
  ambient conditions
# Fabrication of large screen sizes
#Oxidation of carbon-carbon bonds between the aromatic rings
  reduce the conjugation length of the polymer

So, this is a Extra Ordinary source outlet.
Therefore ,in future you can carry a rolling TV, Laptops and Paper plated mobiles phones.