PIEZOELECTRIC ELEMENT AND ELECTRONIC APPARATUS COMPRISING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a piezoelectric element capable of being utilized as at least one of a piezoelectric acoustic element and a piezoelectric vibration element.SOLUTION: A piezoelectric element includes at least two piezoelectric plates having at least two contact points. The at least two piezoelectric plates have at least two resonance frequencies. The piezoelectric element serves as at least one of a piezoelectric acoustic element and a piezoelectric vibration element in a wearable device.SELECTED DRAWING: Figure 1