The 2014 Nobel Prize in Physics goes to Isamu Akasaki, Hiroshi Amano and Shuji Nakamura for work on blue light emitting diodes (LEDs). This new LED can be used with a phosphor coated glass or can be combined with red and green LEDs to generate white light suitable for illumination.
Sir Colin Humphrey told the Guardian:
It 19s so well deserved. Based on this bright blue LED you can make white LEDs and those are becoming widespread all over the world for solid state lighting. This is going to save lots of energy...
About a quarter of the world 19s electricity is used for lighting
Although scientists were able to make red and green light, blue light was very hard to make due to the high energy level required. But only blue light can be converted into white light since it has the highest visible frequencies.
Watch the following video to understand how these three bright scientists managed to break the barrier and begin the new lighting evolution.