LED: Light emitting diode, is a piece of electroluminescent semiconductor material. Its internal structure is a PN junction with unidirectional conductivity.
Structure of LED
LED is mainly composed of the following parts:
Chip (role: light source emitting)
Stands: including substrate and heat sink base, pins, etc. (Role: heat dissipation, conductive)
Gold wire (role: conductive)
Transparent resin (role: to protect the grain, light transmission)
High-power integrated packaging chip
Existing LED packaging technology has developed from a single crystal chip LED light source polycrystalline package products (other words called integrated chip). Multi-crystalline packaged LED light source per lumen output of up to 2000Lm.