The liquid crystal display device inverts the polarity of the data signal once in the first one of n iterations (n is an integer of 2 or more) of the horizontal blanking period. Then, in each of the remaining n−1 iterations of the horizontal blanking period, the polarity of the data signal is inverted twice. A plurality of data lines are short-circuited together when inverting the polarity of the data signal, and a scan line is selected in a write period during which the data signal is applied to a picture element forming portion. Moreover, a scan line is selected in synchronism with a timing for short-circuiting the data lines before the once-selected scan line is selected again in a write period.