With the rapid development of display technique

as a new digital image display device

LED display’s color is being more and more opulent. Now there is the full color LED display which displaying color is as good as CRT

but this display’s image data increases much. The increasing of data gives more pressure on the circuit of LED display

especially on the data transfer. Common solution is parallel transfer or increasing the transfer frequency. In this paper the application of data compression technoique in different LED displays was studied. Basde on the development of date compression technique and the features of LED display.