An active matrix electroluminescent display device comprises an array of display pixels (
) which each include a current-driven electroluminescent display element (
) connected to a driving device (
) controlling the current flowing through the display element in a drive period according to a voltage stored on a capacitance (
) and determined by a data signal applied in a preceding address period. In order to compensate for ageing effects in the display element, electro-optic devices (
) are included in the pixel for adjusting the voltage stored on the capacitance in dependence on the light output of its display element during the address period.