so graphene emits white light at varying strengths from the mouth of the strip. The strip is oled technology and there is 3 strips per pixel. This enables more resting time in the pixel and the graphene tech also mitigattes against burn out.
a 17 " 7 watt 720p OLED screen with this technology could be done cheap after research and would last a long time with good natural colouring.
Things around the 7 watt and below range (lower being easier) have the potential to build charge from the earth emf field energy.
This could include 7" nettops, calculators, $5 free universal sms and banking devices, mp3 players and watches.
This could help lead to much reduction and elimination of lithium based batteries over the coming decade.