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The very start
A British inventor known as Henry Round announces light emission from crystal detector. -
Making progress
twenty years later “Oleg Losev notes that silicon carbide crystals diodes used dios glowed when when excited by an electrical current” -
Lots of time passes
A man called William Shockley, also the co-inventor of the transistor “files a patent for an infrared LED” -
The start of public use
The first practical "visible-spectrum” LED is created -
Make it brighter!
“the first high-brightness, high-efficiency LED's for fiber optical telecommunications” is created -
Additions to cars!
the Audi was the first car to completely use LED headlights
