Pseudo-color and full-color LED screen
Pseudo-color LED large screen means that each pixel array by the red and green light emitting diodes arranged in dot-matrix color screen, red, green and gray for 256, then it can show 65,536 colors.
Full-color LED large screen means that each pixel array by the red, green and blue light-emitting diodes arranged in dot-matrix color screen, red, green and blue for 256 gray, it was the performance of 16,777,216 colors.

Ping-ping Sync and asynchronous
Synchronization is the LED screen shows the contents of large-screen computer monitors changes in the content of the show synchronous changes. Can be used to broadcast two-dimensional, three-dimensional animation and television, the video signal.
Asynchronous screen while the other hand, can not play animation and television signals, generally used to broadcast text.

The external color screen with indoor room
Indoor highlighted by light-emitting diode screen pose.
The external color display room highlighted by the ultra-light-emitting diodes constitute, rain, wind, weather, such as anti-corrosion requirements.

Synchronization refers to the LED display is the work of the same as the basic means of a computer monitor, which at least 30 / s refresh rate slightly map correspond to real-time images on computer monitors usually have more gray color display capabilities, Up to the multi-media advertising effect.

Asynchronous mode is the LED screen with automatic storage and the ability to play in the PC machine on a good text editor and no gray-scale image through the serial port or other network interface into LED screen, and then by the automatic play off-line LED screen, the general did not Gray showed more ability to display text messages used to screen more than networking.