Vibration module for piezoelectric speaker and panel speaker
US12207051B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2021 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Apr 5, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a piezoelectric speaker and a vibration module for a panel speaker including a piezoelectric speaker and a vibration module for a panel speaker including one speaker unit being configured by including a diaphragm, and at least 3 piezoelectric resonators each being independently configured and attached to one surface of the diaphragm. As described above, according to the present invention, the acoustic properties of a piezoelectric speaker having the advantages of a thin speaker may be enhanced. Most particularly, the present invention may provide a piezoelectric speaker that is required in panel speakers of large-sized TVs, mobile devices, and so on, that can generate sufficient sound pressure and produce stable bass sound (or low frequency sound) at the same time, by resolving the disadvantages of insufficient sound pressure properties in the low frequency band, and by enhancing the smoothness of the sound pressure level (SPL).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.