Led Diode Diagram. Bicycle led pov persistence of vision display led display. In the above diagram we can see that there two terminals that are known as anode and cathode.
Thus the p region becomes the device surface. When it is activated by applying the suitable voltages across its leads then it emits the light energy in the form of photons and the color of this light was determined by the band gap of. A light emitting diode led is a semiconductor light source that emits light when current flows through it.
Light emitting diode led light emitting diodes leds and lamps produce light when a current flows through them in the forward direction.
Led construction all the semiconductors listed above can be used. The constructional diagram of a led is shown below. Diode symbol a standard diode symbol is represented as above. This diagram summarizes what happens.