An output circuit of a display driving device may include: an output buffer unit configured to buffer a pair of input signals having different polarities and output a pair of output signals; and a switching unit configured to transmit the pair of output signals to a pair of output terminals through a direct path or a cross path during an output period, and charge-share the pair of output terminals using a middle voltage of a pull-up voltage and a pull-down voltage of the output buffer unit during a charge-sharing period.