Title:
VIBRATION MODULE FOR PIEZOELECTRIC SPEAKER AND PANEL SPEAKER
Document Type and Number:
WIPO Patent Application WO/2022/030956
Kind Code:
A1
Abstract:
The present invention relates to a vibration module for a piezoelectric speaker and a panel speaker, and, more specifically, provides a vibration module for a piezoelectric speaker and a panel speaker, the vibration module comprising a diaphragm, and at least three piezoelectric vibrators attached to one surface of the diaphragm and formed independently of each other. According to the present invention, acoustic characteristics of a piezoelectric speaker, which has an advantage as a thin speaker, can be improved. In particular, the disadvantage of the lack of sound pressure characteristics in a low-frequency range is remedied and the smoothness of sound pressure level (SPL) is improved so that sound pressure is sufficiently generated and, simultaneously, stable bass sound can be played back, and thus a panel speaker for a large-screen television and a piezoelectric speaker required for a mobile device and the like can be provided.
Inventors:
LEE HYEUNG GYU (KR)
Application Number:
PCT/KR2021/010156
Publication Date:
February 10, 2022
Filing Date:
August 03, 2021
Export Citation:
Assignee:
SPT CO LTD (KR)
International Classes:
H04R17/00; H04R1/40
Foreign References:
| JPH07105988B2 | 1995-11-13 | |||
| KR20120080882A | 2012-07-18 | |||
| KR20190009188A | 2019-01-28 | |||
| KR20120056020A | 2012-06-01 | |||
| KR20190116898A | 2019-10-15 |
Attorney, Agent or Firm:
SU INTELLECTUAL PROPERTY (KR)
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