Control architecture of a virtual matrix LED display without current drivers

A new electronic design for virtual matrix LED based screens is presented using D-Type Flip-Flops registers (HC logic) instead of constant current drivers. This design reduces in a significant way the cost and the complexity of the current 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 multicolour and fullcolor displays.