 aspect of a device is an active matrix device for operating light function devices disposed one or two dimensionally by mechanically-conductive switches which are operated by static electric force, the active matrix device comprising: a plurality of parallel first scanning-signal electrodes in the form of stripes formed on a substrate; a plurality of parallel data-signal electrodes in the form of stripes disposed perpendicular to the first scanning-signal electrodes and formed at least at intersections with the first scanning-signal electrodes through insulating layers; 