A driving apparatus of a display device, comprises a signal controller which receives an image signal and an input control signal from an outside, a signal error judgment unit which judges an error of the input control signal, and a data driver and a gate driver which receive a signal output from the signal controller, wherein the signal error judgment unit does not judge an error of the input control signal during a predetermined error judgment holding time after the error of the input control signal is generated and judges the error of the input control signal at the substantially a same time as when the error judgment holding time is terminated when the error of the input control signal is continued after the predetermined error judgment holding time.