Buffer circuit having an amplifier offset compensation and source driving circuit including the same

The output buffer circuit having an amplifier offset compensation function and the source driving circuit including the same are disclosed. An output buffer circuit amplifier offsets, including a plurality of channel amplifiers, and controlling the amount of current flowing through a current path connected to one input terminal of the noninverting input terminal and inverting input terminal of each of the differential input section of the channel amplifier ( compensating the offset), and buffering the input voltage signal to generate a source signal. Thus, the source driver circuit comprising an output buffer circuit can be small, the deviation of the output voltage, applied to the high resolution display device.