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The composition of LED lights

2021/12/09

The components of LED lights: semiconductor material chip, white glue, circuit board, epoxy resin, core wire, shell. The LED lamp is an electroluminescent semiconductor material chip, which is cured on the bracket with silver glue or white glue, and then connects the chip and the circuit board with a silver wire or gold wire. The surrounding is sealed with epoxy resin to protect the inner core wire. Function, finally install the shell, so the LED lamp has good seismic performance.

The LED light-emitting diode is a solid-state semiconductor device that can convert electrical energy into visible light. It can directly convert electricity into light. The heart of the LED is a semiconductor chip, one end of the chip is attached to a support, one end is the negative pole, and the other end is connected to the positive pole of the power supply, so that the entire chip is encapsulated by epoxy resin.

The light-emitting principle of LED lights

When the current passes through the wafer, the electrons in the N-type semiconductor and the holes in the P-type semiconductor violently collide and recombine in the light-emitting layer to produce photons, which emit energy in the form of photons (that is, the light that everyone sees). Semiconductors of different materials will produce different colors of light, such as red light, green light, blue light and so on.

Between the two layers of semiconductors, electrons and holes collide and recombine and produce blue photons in the light-emitting layer. Part of the blue light generated will be directly emitted through the fluorescent coating; the remaining part will hit the fluorescent coating and interact with it to produce yellow photons. The blue photon and the yellow photon work together (mixed) to produce white light

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