In an exemplary embodiment of the present invention, there is provided a
pixel circuit for a luminescent display, in which plural pixel circuits
are formed in a plurality of pixels defined by a plurality of data lines
and a plurality of scan lines. The pixel circuit includes: a luminescent
element; a first capacitor; a first transistor having a gate electrode
coupled to the first capacitor, and a first main electrode coupled to a
power supply line; a first switch for diode-connecting the first
transistor in response to a selection signal to charge the first
capacitor with a voltage corresponding to a threshold voltage of the
first transistor; a second transistor for transferring the data signal
from the data lines in response to a selection signal; a second capacitor
for storing a voltage corresponding to the data signal; and a second
switch for isolating the second main electrode of the first transistor
from the luminescent element during voltage-charging of the first
capacitor in response to a control signal.