The control circuit and the RGB chip are integrated in a 5050 packaged component to form a complete external control pixel. Intelligent reverse connection protection, power reverse connection not damage the IC. The IC control circuit shares a power supply with the LED point light source. The three of each pixel can achieve 256 levels of brightness display, complete the full display of 16,777,216 colors, and the scanning frequency is not less than 400Hz/s. Built-in signal shaping circuit, any pixel point receives the signal after waveform shaping and then output, to that waveform distortion not accumulate. Built-in power-on reset and power-down reset circuits. The serial cascade interface can receive and decode data through a signal line. When the transmission distance between any two points is less than 5 meters, there is no need to add any circuit.