How to make a dot-matrix LED display
By Conrad Quilty-Harper 
posted October 9th 2006 5:26AM
posted October 9th 2006 5:26AM
Instructables has posted a step-by-step guide to creating your very own dot-matrix display out of not much more than a collection of LEDs, a few wires, some resistors, and a microcontroller. The guy behind the project is hoping to sell a few pre-made kits, which will probably be the best option for those that feel a little lost staring at the board layouts and the lines of code required to get the display to show the letter "b". For some reason we feel a sense of empowerment after glancing at the guide -- then again, that feeling could just as easily be our inner child, urging us to build one and send rude messages to people across the room.
Good One
http://lcdinterfacing.googlepages.com/dotmatrix
It looks ok. More comments pls visit led display-led screen-led signs
manufacturer http://www.ledscreenchina.com or http://www.led-
screen.org
Another one
http://www.lcdinterfacing.info/Dot-Matrix-Display.php
Hmmmm..."Temporarily Unavailable". Nuts.
doesn't that suck.. there goes my side project. I guess consoles aren't the only things in short supply these days.
am a student of physics with electronics in a university in nigeria,i need your help in operational principle of a dot matrix display board.How it works,and major driving force in the system.i will be looking forward to your assistance.thank you.