What is the working principle of LED display screen?

Arrange multiple light-emitting diodes into pixels, and they can be used to display text, pictures and videos. We think its working principle can be divided into 4 aspects:

1. Adjust the color
We know that the three colors of RGB can generate almost all colors visible to the naked eye, and the control system will adjust the brightness of each color to mix different colors, thereby realizing complex display

2. The composition of pixels
It can be understood that each LED lamp bead is a pixel. An LED display screen is composed of countless LED lamp beads. The higher the density of LED lamp beads, the clearer the display effect.

3. Driver module
To display different colors and brightness, the current size of LED lamp beads will be different, so a professional driver chip will be needed to manage and control the lamp bead power supply.

4. Display control system
This system can perfectly control the input and output content, convert the signal, and realize the display of pictures and videos.