For general lighting, in terms of processing process structure, white light LEDs are generally produced in two ways. The first is to use "high -definition blue light technical" and luminous powder to produce white light; Way. These two methods have long been able to successfully cause white light components. The system software that causes white light lights as shown in Figure 1 icon. In the figure, LEDGAM integrated IC hair high -definition blue light (λp = 465nm), and it is encapsulated with YAG (钇 aluminum garnet) night light powder. After being aroused by high -definition blue light, light yellow light was out. As a result, the high -definition blue light and yellow light mixed with white light (the structure of the LED was shown in Figure 2 in Figure 2). The second method is packaged with different compound -color chips, which causes white light according to various light mixing.