A resetting period of organic EL elements is divided to a discharge period
for discharging residual charges of the organic EL elements and a
precharge period for pre-charging the organic EL elements to
predetermined potentials. First switch circuits provided for each of R
(red), G (green) and B (blue) display colors are turned ON in the
discharge period to discharge residual charges of the organic EL elements
and second switch circuits provided for each of R, G and B display colors
are turned ON in the precharge period to precharge the EL elements to a
precharge potential lower than a light emission voltage of the organic EL
elements. Values of finally set precharge voltages for R, G and B display
colors are made different from each other.