A display device includes a pixel defined by a plurality of sub-pixels.
The plurality of sub-pixels include first, second, third and fourth
sub-pixels. A second hue of the second sub-pixel is closest to a first
hue of the first sub-pixel in the chromaticity diagram of the L*a*b*
color system, and a third hue of the third sub-pixel is closest to the
first hue on the opposite side to the second hue with respect to the
first hue in the chromaticity diagram of the L*a*b* color system among
the hues. The luminances of the plurality of sub-pixels are set such that
while a color displayed by the pixel changes from black via the first
color of the first sub-pixel to white, the luminance of the first
sub-pixel starts to be increased, and when the luminance of the first
sub-pixel reaches a predetermined luminance, the luminance of at least
one of the second sub-pixel and the third sub-pixel starts to be
increased.