1. Monochrome means that the display screen has only one color of luminescent material, mostly single red.

2. Two-color screens are generally composed of red and green LED diodes.

3. Three-color (full-color) screen, consisting of red, green (wavelength 570nm), and blue; and true color, consisting of red, pure green (wavelength 525nm), and blue.

2. Divided by environment: indoor, outdoor and semi-outdoor LED transparent screens:

1. The semi-open air curtain is between indoor and outdoor. It has high brightness and can be used outdoors in the sun. The screen body is sealed, usually on the roof or window.

2. The area of indoor screens is generally very small (more than a dozen square meters) and the point density is high. Under direct sunlight or ambient lighting, the viewing distance is several meters away. Because it is indoors, it does not need to be open-air, and the screen body does not need to have Sealed and waterproof. Indoor display screen dot matrix modules are mainly used because the display brightness requirements for indoor use are not high;

3. The area of outdoor display screens is as small as tens of square meters, and as large as hundreds of square meters or even thousands of square meters. The dot density is relatively sparse (mostly 1000-4000 dots per square meter), and the luminous brightness is 3000-6000cd/square meter (facing Different, different brightness requirements), in direct sunlight conditions, the viewing distance is tens of meters, because it is outdoor, so a waterproof box must be used, and the screen has a good resistance to wind, rain and lightning protection.

With the economic growth, small-pitch LED transparent screens are often used in indoor advertising screens. Generally, the viewing distance of such small-pitch advertising screens is relatively close, and some are even made into special-shaped screens, such as cylindrical screens. Small-pitch LED transparent screens are widely welcomed by people because of their characteristics of easy splicing, convenient installation, and high resolution. At present, the production technology of China's small-pitch LED transparent screens has reached the international leading level, and the small-pitch LED transparent screens of major Chinese brands are well-known in overseas markets. Research data shows that small-pitch indoor LED transparent screens still have relatively high performance. Large potential market.