Multicolor Virtual Matrix LED Display Controlled by D-Type Flip-Flop Drivers

Light-emitting diode (LED) displays are currently experiencing a growing interest in many applications such as publicity, mass shows, etc., because of their high performance in terms of component reliability, brightness, power efficacy, modularity and scalability. However, the complexity of the control architecture of the present designs, based on current drivers, is the biggest obstacle to a significant cost reduction and massive spreading of this technology. In this paper, a new control architecture based on D-type flip-flops registers (HC logic) is presented. This design reduces in a significant way the cost and complexity of the large LEDs displays. It works as a write only memory on the basis “it is seen what is saved”. This design is adequate for variable brightness screens on multicolor displays.