A driving transistor for outputting a current for driving an organic
electroluminescent (EL) element is formed on a pixel circuit of an
organic EL display. A first capacitor is coupled between a power supply
voltage and a gate of the driving transistor, and a second capacitor is
coupled between the gate and a scan line. First a voltage matched with a
data current is stored in the first capacitor in response to a select
signal from the scan line. The voltage of the first capacitor is changed
by variation of the select signal's voltage level. A driving current is
output from the transistor because of the changed voltage of the first
capacitor, and the organic EL element emits light as a result of the
driving current.