A display device includes a display panel, display drivers, an inspection signal output, judgement signal outputs included in the respective display drivers and through which judgement signals generated by the display drivers are output, signal inputs included in at least the display drivers except a most upstream one of the display drivers and through which the judgement signals and the inspection signals are input, switches located between the adjacent display drivers in an upstream and downstream direction to cascade the display drivers and each configured to switch points connected to the signal input of one of the display drivers on a downstream side between the judgement signal output of one of the display drivers on an upstream side and the inspection signal output, and a judgement unit connected at least to the judgment signal output of a most downstream one of the display drivers to receive the judgement signal.