Abstract: Articulated display matrix apparatus for providing moving or flashing variable messages is disclosed. The apparatus is highly adaptable and portable. Because the linear arrays of display cells are durably enclosed, as well as articulated, they can shipped and stored compactly. Because of their light weight and their highly-flexible structure they can be mounted in a variety of configurations and on a variety display panel shapes, without tools. The display matrix arrays can provide a continuous combined display matrix that is extensible in two dimensions.