| 摘要 |
PROBLEM TO BE SOLVED: To reduce sound leakage from a diaphragm which is vibrated by a piezoelectric element.SOLUTION: In an electronic apparatus 1 including a piezoelectric element 30 and a lid, and the lid is bent so that a part immediately above the piezoelectric element 30 is raised most, in the longitudinal direction, in comparison with the surrounding thereof, and a portion of human body in contact with the lid vibrates to transmit sound. The piezoelectric element 30 is vibrated using a signal from which the frequency components higher than a threshold is cut or attenuated at least partially. |
