history of the LED

Robert Biard and Gary Pittman invented an infrared LED light in 1961 while working at Texas Instruments. 

The next year, in 1962, Nick Holonyak, Jr. (the “Father of the Light-Emitting Diode”) invented the first LED that produced visible, red light while working at General Electric.

in the 1960s, researchers and engineers continued experimenting with semiconductors with the reason to make more efficient LEDs. They experimented with different chemicals, and then bright red and orange LEDs came into production.

Then, in 1972, M. George Craford, while working at Monsanto, used one red and one green diode to create a pale yellow light. Crawford also invented an LED that was about ten times brighter than Holonyak’s. Monsanto became the first company to mass-produce LED lights.

Now they are used to making many displays and now leads have become smaller and smaller TVs, and Phones are already using less than a fraction of the size of the original.