The display device includes an image display unit including pixels each including first to third sub-pixels and a fourth sub-pixel for displaying an additional color component according to an amount of lighting of a self-emitting element; a conversion processing unit that performs, for all of pixels, an image analysis on first color information for display at a predetermined pixel, and if a predicted value of power consumption as a total amount of lighting of self-emitting elements is above a limit, outputs a second input signal through a color conversion process on a first input signal including the first color information at a color conversion rate associated with the predicted value; and a fourth sub-pixel signal processing unit that outputs, to the image display unit, a third input signal including third color information with converted red, green, blue, and additional color components.