A transparent overlay input device includes a transparent non-conductive
substrate, a plurality of transparent conductive electrode pairs and a
transparent non-conductive cover. The plurality of transparent conductive
electrode pairs are formed on the substrate and each form a proximity
sensitive region and include a first electrode that receives an input
signal and a second electrode that provides an output signal. The first
and second electrodes are capacitively coupled and the capacitance of the
electrode pair changes when a conductive member, e.g., a user's finger,
is located near the electrode pair. The transparent non-conductive cover
is formed on the substrate over the electrode pairs.