Imvelaphi Ngama-1960, izazinzulu zavelisa i-LED ngokusekelwe kumgaqo we-semiconductor PN junction. I-LED eyaphuhliswa ngelo xesha yenziwe nge-GaASP kwaye umbala wayo okhanyayo wawubomvu. Emva kweminyaka ephantse ibe yi-30 yophuhliso, siqhelene kakhulu ne-LED, enokuthi ikhuphe ibomvu, i-orenji, ityheli, eluhlaza, eluhlaza ...
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