Dual voltage power supply apparatus

摘要

A dual voltage power apparatus comprises a dual voltage power supply portion for forward-biasing a positive voltage and/or reverse-biasing a negative voltage into a load including a plurality of paired or grouped LEDs; and a multi-colour LED driver for controlling the operating of the dual voltage power supply apparatus to supply the positive and/or negative voltages to the load, which is constructed as a single module, in which a plurality of modules facilitate the construction of an image display system to represent various images or motion pictures.