A display device includes a plurality of light emitting elements arranged
in a matrix. A scan signal is made to flow into a gate signal line and a
data signal is made to flow into a source signal line so that the data
signal is applied to a source electrode and the scan signal is supplied
to a gate electrode of a control TFT arranged at a portion where the both
signal lines intersect when viewed from above. Thus, when the control TFT
is turned ON, a drive TFT having a gate electrode connected to the drain
electrode is turned ON, so that current is supplied from a power supply
line via the source electrode and the drain electrode of the drive TFT to
an organic EL element and the organic EL element emits light. A holding
capacity is present between the control TFT and the drive TFT. Even when
the scan signal becomes LOW level and the control TFT turns OFF, the gate
potential of the drive TFT is held for a predetermined period of time by
the holding capacity and the organic EL element continues to emit light.