Asal ahaan 1960-meeyadii, saynisyahannadu waxay soo saareen LED oo ku saleysan mabda'a isku xirka semiconductor PN. Nalalka LED-ka ee wakhtigaas la sameeyay waxay ka samaysan yihiin GaASP midabkeeduna wuxuu ahaa casaan. Ka dib ku dhawaad 30 sano oo horumarin ah, waxaan aad u naqaannaa LED, oo soo saari kara casaan, oranji, jaalle, cagaar, buluug ...
Sii akhri