2021 LED Industry Development Research Report
LED lighting is light-emitting diode lighting, which is a semiconductor solid-state light-emitting device. It uses a solid semiconductor chip as a luminescent material, in the semiconductor, the excess energy is released by the recombination of carriers, causing photon emission, and directly emits red, yellow, blue, and green light. On this basis, using the principle of three primary colors, Add phosphors to emit light of any color.