Taketake I te tekau tau atu i 1960, i whakawhanakehia e nga kaiputaiao te LED i runga i te kaupapa o te hononga PN semiconductor. Ko te LED i whakawhanakehia i tera wa i hangaia mai i te GaASP me tona tae kanapa he whero. I muri tata ki te 30 tau o te whakawhanaketanga, kua tino mohio matou ki te LED, ka taea te whakaputa whero, karaka, kowhai, matomato, puru ...
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