The development of ultra thin speakers for mobile phones

Yasuharu Onishi; Jun Kuroda; Yukio Murata; Motoyoshi Komoda; Nozomi Toki; Yasuhiro Sasaki; Yasuhiro Oikawa; Yoshio Yamasaki

The development of ultra thin speakers for mobile phones

Yasuharu Onishi^*, Jun Kuroda, Yukio Murata, Motoyoshi Komoda, Nozomi Toki, Yasuhiro Sasaki, Yasuhiro Oikawa, Yoshio Yamasaki

^*Corresponding author for this work

School of Fundamental Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

In this paper we describe the design of novel, ultra-thin piezoelectric speakers for mobile phones. Due to the expansion of the slim mobile phone market, ultra-thin speakers providing high-quality sound are in strong demand. Piezoelectric speakers are much thinner than the electrodynamic speakers generally used in mobile phones. However, to achieve high-quality sound, the rigid structure and low internal friction of piezoelectric speakers must be improved. In this study, we have successfully developed highly reliable 0.9-mm-thick piezoelectric speakers that consist of a piezoelectric bimorph transducer and an elastic support structure and that provide high-quality sound. We have also successfully used these ultra thin speakers in a slim mobile phone. Copyright

Original language	English
Title of host publication	20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
Pages	1258-1265
Number of pages	8
Publication status	Published - 2010 Dec 1
Event	20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society - Sydney, NSW, Australia Duration: 2010 Aug 23 → 2010 Aug 27

Publication series

Name	20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
Volume	2

Other

Other	20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society
Country/Territory	Australia
City	Sydney, NSW
Period	10/8/23 → 10/8/27

ASJC Scopus subject areas

Acoustics and Ultrasonics

Cite this

Onishi, Y., Kuroda, J., Murata, Y., Komoda, M., Toki, N., Sasaki, Y., Oikawa, Y., & Yamasaki, Y. (2010). The development of ultra thin speakers for mobile phones. In 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society (pp. 1258-1265). (20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society; Vol. 2).

The development of ultra thin speakers for mobile phones. / Onishi, Yasuharu; Kuroda, Jun; Murata, Yukio et al.
20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society. 2010. p. 1258-1265 (20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Onishi, Y, Kuroda, J, Murata, Y, Komoda, M, Toki, N, Sasaki, Y, Oikawa, Y & Yamasaki, Y 2010, The development of ultra thin speakers for mobile phones. in 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society. 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society, vol. 2, pp. 1258-1265, 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society, Sydney, NSW, Australia, 10/8/23.

Onishi Y, Kuroda J, Murata Y, Komoda M, Toki N, Sasaki Y et al. The development of ultra thin speakers for mobile phones. In 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society. 2010. p. 1258-1265. (20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society).

Onishi, Yasuharu ; Kuroda, Jun ; Murata, Yukio et al. / The development of ultra thin speakers for mobile phones. 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society. 2010. pp. 1258-1265 (20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society).

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The development of ultra thin speakers for mobile phones

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