An electro-optical device comprising, a first board and a second board superposed
on each other; a seal 6 for bonding the first board and the second board
at the periphery of a display area; a plurality of connection terminals 71 provided
on an overhang of the first board which extends from the second board; and a plurality
of connection wires 70 provided on the first board and interconnecting the
display area and the plurality of connection terminals 71. The distance
between adjacent connection wires 119b is set to be smaller inside
the seal 6 than outside the seal 6. This prevents the occurrence
of corrosion in the connection wires 70 lying outside the seal 6,
and shortens the distance between adjacent connection wires 70 lying inside
the seal 6, thereby reducing the overall size of the liquid crystal device.