Abstract text

A piezoelectric driving device including a laminated body having a base that is capable of being deformed by applying force, a first piezoelectric body that is formed on a first face of the base directly or via another layer, and a second piezoelectric body that is formed on a second face of the base substantially parallel to the first face directly or via another layer, a driving voltage generating section that generates a driving voltage according to a displacement amount of the laminated body, a compensating voltage generating section that generates a compensating voltage compensating for hysteresis caused by the displacement of the laminated body by the driving voltage, and a voltage applying section that applies each of the driving voltage and the compensating voltage to each of the first piezoelectric body and the second piezoelectric body.