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The Origin Of The LED Lights
Jul 26, 2017

In the 1960s, technology workers developed LED light-emitting diodes using the principle of semiconductor PN junction luminescence. The LED used at the time was GaASP, and its luminous color was red. After nearly 30 years of development, people are very familiar with the LED, and can make red, orange, yellow, green, blue and other colors. However, the white leds needed for lighting only developed after 2000.