In 1897, German physicist Karl Ferdinand Braun invented the Cathode Ray Tube (CRT) and it has become an indispensable part of our lives ever since. It has remained ubiquitous till date inspite of being bulky, power hungry and expensive. Researchers came up with an alternative called Liquid Crystal Display (LCD). LCD had been projected as the saviour of the display industry and they have been quite a success in the computer applications industry. However, even today LCDs are far from pervasive. This is due to the fact that apart from being thinner than the CRT it has little advantage over it and hence, fail to meet the broad demands of the imaging appliance industry.

In 1989, researchers at the Cambridge University, U.K. found out that on passing electricity, certain polymers emitted light and in 1992 Cambridge Display Technology (CDT) Ltd. was developed in order to commercialise this technology known as...