1. A driving circuit for an active matrix organic light emitting diode, comprising: a gamma voltage generation unit for generating differentiated gamma reference voltages having values corresponding to light emitting diodes capable of emitting red, green, and blue colors; a power supply unit for applying power voltage and a common ground voltage; a control unit for outputting a control signal and image data; and a driving unit for outputting a video data signal of a frame by receiving the differentiated gamma reference voltages from the gamma voltage generation unit, the power voltage and common ground voltage from the power supply unit and the control signal and image data from the control unit.