An organic electroluminescent display device can compensate for voltage
drop of power supply voltage line by asymmetrically arranging a plurality
of contact hole for connecting cathode electrodes and cathode power
supply line. The organic electroluminescent display device may include
first power supply line for supplying power supply voltage to pixels, and
second power supply line for supplying voltage to an electrode on the
upper side of the pixel (the supply line can include a region superposed
on the electrode). The second power supply line may include a plurality
of contact holes through which the second power supply line is connected
to the electrode. The plurality of contact holes may be asymmetrically
arranged with respect to a bisector of the superposition region of the
second power supply line and electrode.