Piezoelectric speaker and method of manufacturing the same
US8712079B2 · kind B2 · utility
21Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2009 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Apr 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A piezoelectric speaker and a method of manufacturing the same that can obtain a high sound pressure using a piezoelectric thin film are provided. The piezoelectric speaker includes a piezoelectric thin film, electrodes formed on an upper surface or upper and lower surfaces of the piezoelectric thin film, a damping material layer formed on the lower surface of the piezoelectric thin film, and a frame attached around at least one of the piezoelectric thin film and the damping material layer using an adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.