1. He aha ke LED, LCD? ʻO ke kukui LED no ka Light-Emitting Diode, kahi mea semiconductor i hana ʻia mai nā pūhui i loaʻa nā mea e like me Gallium (Ga), Arsenic (As), Phosphorus (P), a me Nitrogen (N). Ke hui hou nā electrons me nā puka, hoʻopuka lākou i ka mālamalama ʻike ʻia, e hana maikaʻi loa i nā LED i ka hoʻohuli ʻana i nā ele ...
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