These products are high performance, easy to use dot matrix displays driven by on-board CMOS IC. Each display can be directly interfaced with a microprocessor, thus eliminating the need for cumbersome interface components. The serial IC interface allows higher character count information displays with a minimum of data lines. The 5x7 pixel format allows the user great freedom to generate userdefined characters. These displays are stackable in the x- and y-directions, making them ideal for high character count displays