Blue LED Inventors Awarded Nobel Prize For Creating White LED Lighting Revolution
As you probably know, we’ve had red and green light-emitting diodes (LEDs) for a long, long time — but blue LEDs, for a variety of reasons, had evaded our scientists until fairly recently. This is why all of your old gadgets — TVs, VCRs, modems — were adorned with red and green LEDs… until out of nowhere, at the end of the ’90s, blue LEDs were suddenly everywhere.
