ELECTRONIC DEVICE Russian patent published in 2016 - IPC H04R1/00 

Abstract RU 2582893 C2

FIELD: electronic devices.

SUBSTANCE: invention relates to electronic devices, particularly, to mobile telephones. Disclosed is a mobile phone comprising: a piezoelectric element; a vibration plate which is attached to piezoelectric element to vibrate; and a housing to which is attached vibrating plate, wherein sound vibration which is transmitted user's ear vibration created by vibrating plate and vibrating plate includes, in its plan view, first region comprising a connectable portion to piezoelectric element, and a second region disposed farther from connected portion than first region, and stiffness in first region is lower than rigidity of second region.

EFFECT: technical result is increased size of vibration plates used in mobile telephone.

16 cl, 6 dwg

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RU 2 582 893 C2

Authors

Nabata Tosikhisa

Midzuta Satosi

Mijano Tomoaki

Sato Kijokadzu

Kikhara Akio

Kadzama Sun

Katajama Jasukhiro

Dates

2016-04-27Published

2013-03-28Filed