According to an aspect, a display device includes: an image display unit in which pixels are arranged, each of the pixels including a fourth sub-pixel and surrounding sub-pixels arranged around the fourth sub-pixel, the fourth sub-pixels of the respective pixels being arranged in a two-dimensional matrix and displaying a white color component as a fourth color, each of the pixels sharing at least one of the surrounding sub-pixels with an adjacent pixel adjacent to the pixel; and a signal processing unit that, based on a first input video signal for a specific pixel and a second input video signal for an adjacent pixel adjacent to the specific pixel, generates an output signal for the surrounding sub-pixels belonging to the specific pixel and outputs the generated output signal to the image display unit.