An electrode driving apparatus includes first and second substrates 11
and 12, first and second electrode patterns 21 and 22 arranged
in a quadrilateral region 20, first and second wiring patterns 31
and 32, a first electronic component 40 that is electrically connected
to the first wiring pattern 31, and a second electronic component 50
that is electrically connected to the second wiring pattern 32. The first
and second electronic components 40 and 50 are disposed outside and
on the side of a first side 24 of the quadrilateral region 20.