1 lamp bead structure

One of the most important light-emitting structures of LED (Light Emitting Diode) lamps is the mung bean-sized lamp beads in the lamp. Although it is small in size, it has a universe inside

After enlarging the LED lamp bead structure, you will find a chip shaped like a sesame seed.

LED lamp bead microstructure diagram

The structure of this wafer is extremely complex and is divided into several layers: the top layer is called the P-type semiconductor layer, the middle layer is the light-emitting layer, and the bottom layer is called the N-type semiconductor layer.