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US 9,070,355 B2Granted
Acoustic generator, acoustic generation device, and electronic device
AssigneeKYOCERA Corporation
InventorsMasaki Terazono, Shigenobu Nakamura
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Abstract
An object is to flatten a frequency characteristic. For achieving the object, an acoustic generator according to an embodiment includes a piezoelectric element (exciter) and a film (film-like vibrating body). The piezoelectric element receives input of an electric signal and vibrates. The piezoelectric element is bonded to the film through a bonding material and the film vibrates together with the piezoelectric element with the vibration of the piezoelectric element. Furthermore, the acoustic generator in the embodiment has voids in the bonding material.
Claims15
An acoustic generator comprising:
- an exciter that receives input of an electric signal and vibrates;
- and
- a film-like vibrating body to which the exciter is bonded through a bonding material and that vibrates together with the exciter with vibration of the exciter, wherein
- the bonding material has voids.
1 more element
Dependencies are inferred from the claim text.