1. According to the use environment, it is divided into indoor, outdoor and semi-outdoor
2. According to the color, it is divided into single color, double primary color and three primary color (full color)
3. Divided by pixel density or pixel diameter
Because the LED dot matrix module specifications used in indoor screens are relatively uniform, it is usually divided according to the pixel diameter of the module: ∮ 3.0mm 62500 pixels / square meter ∮ 3.75mm 44321 pixels / square meter ∮ 5.0mm 17222 pixels / square meter
