Patent ID: 7221339

Claim:
An electroluminescent apparatus comprising: a plurality of scanning line; a plurality of data lines intersecting said plurality of scanning lines; a plurality of common power supply lines; and a plurality of pixels, each pixel of the plurality of pixels comprising: a first transistor having a first gate electrode that is connected to one of the plurality of scanning lines; a holding capacitor holds a signal supplied through one of the plurality of data lines and the first transistor; a second transistor having a second gate electrode connected to the holding capacitor, the second transistor being of N channel type; and a luminescent element provided between a pixel electrode of the each pixel and an opposite electrode opposed to the pixel electrode, the luminescent element being disposed in series with the second transistor, and the luminescent element emitting light due to direct current that flows between the pixel electrode and the opposite electrode when the pixel electrode is electrically connected to one common power supply line of the plurality of common power supply lines through the second transistor, a potential of the one common power supply line being set at a lower level than a potential of the opposite electrode when the luminescent element emits light, and a potential of the pixel electrode is always lower than the potential of the opposite electrode whether the luminescent element emits light or not.