Patent ID: 7129645

Claim:
An electro-optical device comprising: a plurality of pixel driving signal lines arranged in an image display region on a substrate, a plurality of first electrodes each of which is formed on each pixel in the image display region and electrically connected to the pixel driving signal line, a second electrode formed so as to face the plurality of first electrodes and be extended from the pixel display region onto a peripheral region located around the pixel display region, a luminescent layer interposed between the first electrodes and the second electrode, for each pixel, a plurality of input/output signal lines arranged in the peripheral region, one ends of which are electrically connected to the pixel driving signal lines and the other ends of which are electrically connected to external circuits for driving the pixel driving signal lines, and a wiring line for the second electrode arranged in the peripheral region and electrically connected to the second electrode, wherein, at least a part of the plurality of input/output signal is collectively arranged in the peripheral region in the direction from the one end to the other end to form a contact area on which no input/output signal lines exist, and the wiring line for the second electrode includes a contact which is positioned on the contact area so as to electrically connect the wiring line for the second electrode to the second electrode.