Blue LED diode, a discovery more important than you can imagine
In the 1960s, the first LED light-emitting diodes were developed. The red LED was first created by Nick Holonyak in 1962. Years later, in 1967, Georde Craford created the first green LED. But what few people know is that it is only when 1993 when, after much insistence, Shuji Nakamura created the first blue LED ...