560 LED matrix display - top view

Wow, this is the biggest LED matrix display i ever seen made in a DIY project. Seven 74ABT574s provide the row drive and 10 column transistors with the whole display refreshed 100 times a second. If you consider starting this project, you have to have some experience, its not suitable for beginners because of it’s complexity and lack of information about building it

560 LED matrix display: [Via] [Link]