The structure of LED fill light
LED is the abbreviation of English Light Emitting Diode (LED). The core of LED is a light-emitting chip composed of P-type semiconductor and N-type semiconductor. The pn junction and forward coupling of LED are used. Voltage, when the forward current acts on the LED chip through the conductor, electrons will be pushed into the P-type semiconductor area, in this area, the electrons combine with the holes in the P area, and then emitted in the form of photons, that is, the LED emits light principle.
Energy can be directly converted into light energy, which is a cold source, also known as a semiconductor solid-state light source.
