Generally

the computer display code buffer memory is served to store the ASC Ⅱ codes of the information which would be appeared on the screen of the computer in cha racier method.And the character generator convert ASC Ⅱ codes which are put out from display code buffer memory to character dot matrice and display them on the appointed location of the screen while the display output is running.In the LEDs display application

the display code buffer memory is essential for us to realize the data transmission

which perform what brings the display information into correspondence with that of the remote subsystem of LEDs display panel simultaneously.While we utilize pc-1500 as the control computer

as its irregular display code buffer memory and the difference of dot matrix between the LEDs panel and control computer screen

so we have some problems in the job.This paper gives a method of Boolean transformation and inverse transformation for us to solve them

and the performance of the new method is very well.