A flat panel display consists of a small panel of LED modules. LED, light emitting diode. It is a kind of diode made of Ga and arsenic (As), phosphorus (P), nitrogen (N), indium (In) compounds by controlling the display mode of semiconductor light-emitting diodes. When electrons and holes recombine, it can emit visible light, so it can be used to make light-emitting diodes. In the circuit and instrument as an indicator light, or constitute a text or digital display. GaAs phosphor diodes emit red light, GaAs phosphor diodes emit green light, SiC diodes emit yellow light, Indium GaN diodes emit blue light. LED display screen is generally used to display text, image, video, video signal and other information.
