According to an aspect, a display device includes an image display panel in which pixels are arranged; and a signal processing unit that converts input values of input signals including color information of a certain color represented in a reference color gamut into extended values in an extended color space to generate output signals. The signal processing unit corrects the input values of the input signals into input values of corrected input signals including color information of a corrected color so as to correct the certain color into the corrected color that is a color positioned in a direction away from a white point, determines an expansion coefficient, and obtains the output signals for first to fourth sub-pixels based on at least the corrected input signals and the expansion coefficient.