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Detail
Registered PIEZOELECTRIC SPEAKER
- Inventors
- Hye Jin Kim, Yang Woo Seok, Kim Jongdae
- Application No.
- 13289225 (2011.11.04)
- Publication No.
- 20120148073 (2012.06.14)
- Registration No.
- 8873776 (2014.10.28)
- Country
- UNITED STATES
- Project Code
- 10MB3300, Development of self-powered smart sensor node platform for smart&green building, Kim Jongdae
- Abstract
- Disclosed is a piezoelectric speaker including: a piezoelectric layer that converts electrical signals into oscillation and outputs sound; an electrode that is formed on a top or a bottom of the piezoelectric layer to apply the electrical signals to the piezoelectric layer; an acoustic diaphragm that is made of a hetero material including a first acoustic diaphragm and a second acoustic diaphragm and is attached to the bottom of the piezoelectric layer on which the electrode is formed; and a frame attached in a form enclosing a side of the acoustic diaphragm.
- KSP Keywords
- Electrical signal, Piezoelectric speaker, piezoelectric layer