Patent ID: 8638541

Claim:
An input device comprising: a resin film substrate, a plurality of lead electrodes being formed on the resin film substrate; a movable electrode that is provided on an upper side of the resin film substrate, and is formed of a conductive material; and at least one capacitance detection electrode that is provided on a lower side of the resin film substrate, the movable electrode including at least one moving section that moves when pressed, and at least one immobile section that is bonded to the upper side of the resin film substrate, the at least one immobile section being electrically connected to one lead electrode among the plurality of lead electrodes, the at least one moving section including a protrusion that protrudes toward the upper side of the resin film substrate, an end of the protrusion coming in contact with the upper side of the resin film substrate in an initial state, or being bonded to the upper side of the resin film substrate, the at least one capacitance detection electrode being disposed opposite to the at least one moving section, and being electrically connected to at least one other lead electrode among the plurality of lead electrodes, and the protrusion having a curved shape so that a side surface of the protrusion is depressed relative to a straight line that connects the end and a base of the protrusion having an approximately trapezoidal cross-sectional shape, or at least one step being formed on the side surface of the protrusion so that a width of the protrusion increases stepwise from the end to the base of the protrusion.