Mmalite Na 1960s, ndị ọkà mmụta sayensị mepụtara LED dabere na ụkpụrụ nke semiconductor PN junction. Igwe ọkụ ahụ mepụtara n'oge ahụ bụ nke GaASP na agba ya na-acha uhie uhie. Mgbe ihe fọrọ nke nta ka ọ bụrụ afọ 30 nke mmepe, anyị maara nke ọma na LED, nke nwere ike ịmịpụta ọbara ọbara, oroma, odo, green, blue ...
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