A display device includes an image display panel and a control unit that outputs an output signal to the image display panel and causes an image to be displayed. The control unit includes an input signal acquisition unit that acquires a correction input signal including a control input signal in which a part of data is input signal data including information of an input signal value for causing a pixel to display a predetermined color, and another part of data is a display control code, a processing content determination unit that determine processing content for processing the input signal data to generate an output signal value of the output signal based on the display control code, and an output signal generation unit that generates the output signal based on the processing content determined by the processing content determination unit and the input signal data.