An active type display panel comprises a plurality of pixel sections each
having a series circuit constituted by a light emitting element and a
drive element for supplying a drive current to the light emitting
element, a pair of power supply lines which connect the series circuits
of the pixel sections in parallel, and a plurality of measurement lines.
Each of the pixel sections includes a switch element between a point
connecting the light emitting element and the drive element, and one line
of the measurement lines. A display device, in which the display panel is
used, detects the voltage across the terminals of the light emitting
element and controls the drive element such that the voltage across these
terminals is a predetermined voltage.