CORRECTION CIRCUIT FOR DAC(DIGITAL/ANALOG CONVERTER)

摘要

PROBLEM TO BE SOLVED: To provide a method by which the scale of circuits added to the conventional correction circuit can be suppressed so as to correct a linearity error in a digital/analog converter(DAC) thereby outputting a white color as a complete white color. SOLUTION: The DAC correction circuit adopts a connection configuration where one output signal from an OSD(On-Screen Display) circuit 101 is used by a plurality of inputs of a DAC 102 so as to apply correction control to a linearity output error of the DAC 102 resulting in finally nullifying the linearity output error. Thus, maximum output values between the DACs are made to the same value to output a complete white color.