Title:
AUDIO OUTPUT DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/074674
Kind Code:
A1
Abstract:
In order to solve problems with an audio device that is difficult to machine and has an increased amount of wiring, the present invention provides an audio output device comprising: a first electrode layer including a plurality of rows of electrodes arranged in a first direction; a second electrode layer disposed on the back surface of the first electrode layer and including a plurality of rows of electrodes arranged in a second direction; a driving layer including a piezoelectric layer disposed between the first electrode layer and the second electrode layer and a support layer coupled to one of the front surface and the back surface of the piezoelectric layer; and a support plate coupled to the back surface of the driving layer and having a hollow portion formed in a region corresponding to each of intersections between the plurality of rows of electrodes in the first electrode layer and the plurality of rows of electrodes in the second electrode layer intersect.
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Inventors:
FUKUYAMA YUTAKA (JP)
HIRATSUKA YUKIO (JP)
RYU HEEBURM (JP)
HORIUCHI KOUSEI (JP)
HIRATSUKA YUKIO (JP)
RYU HEEBURM (JP)
HORIUCHI KOUSEI (JP)
Application Number:
PCT/KR2017/001070
Publication Date:
April 26, 2018
Filing Date:
February 01, 2017
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
KYOCERA CORP (JP)
KYOCERA CORP (JP)
International Classes:
H04R19/02; H04R1/00; H04R3/00
Foreign References:
| KR20110016667A | 2011-02-18 | |||
| US20100274138A1 | 2010-10-28 | |||
| KR101151844B1 | 2012-06-01 | |||
| KR20160015348A | 2016-02-12 | |||
| KR101520070B1 | 2015-05-14 | |||
| JP2009066290W | 2009-09-17 | |||
| JP2013005889A | 2013-01-10 |
Other References:
See also references of EP 3528512A4
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
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