The display device of the invention includes a display panel including a
plurality of pixels arranged in a matrix of rows and columns, and
switching elements each being connected to a corresponding one of the
plurality of pixels; row driving circuits to for each selecting a row in
the plurality of pixels by supplying a selection signal to the switching
elements; column driving circuits for each supplying a data signal to
pixels connected to the switching elements selected with the selection
signal; and a black display signal generation circuit for generating a
black display signal for causing the plurality of pixels to perform a
black display. The data signal and the black display signal are supplied
to each of the plurality of pixels during a period corresponding to one
vertical scanning period. The display device further includes a black
ratio control signal generation circuit for generating a black ratio
control signal defining a ratio between a first period of retaining the
data signal and a second period of retaining the black display signal.