| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic apparatus, vibrating a vibration part by a piezoelectric element to generate an air conduction sound and a vibration sound, in consideration of the thickness of the piezoelectric element.SOLUTION: The electronic apparatus includes: the vibration part for vibrating a part of a human body contacting or pressing thereto to generate a transmitted vibration sound; and a plurality of laminate piezoelectric elements attached in lamination to the vibration part to vibrate the vibration part and having mutually different thickness in the laminate direction. Thus, the possibility of piezoelectric element breakage caused by the vibration of the vibration part is reduced with secured sound pressure, or the sound pressure is improved with suppressed possibility of piezoelectric element breakage. |
