Electronic apparatus

Patent metadata

Field	Value
Publication number	US-2016100255-A1
Application number	US-201514970886-A
Country	US
Kind code	A1
Filing date	Dec 16, 2015
Priority date	Jun 26, 2013
Publication date	Apr 7, 2016
Grant date	—

Abstract

An electronic apparatus comprises a cover panel, a piezoelectric vibration element located on a rear surface being opposite to an exposed surface of the cover panel, and a drive module driving the piezoelectric vibration element based on a sound signal. The rear surface comprises a first region where the piezoelectric vibration element is disposed. The first region is located closer to a side of the exposed surface than a second region in the rear surface.

First claim

1 . An electronic apparatus comprising:
a cover panel; a piezoelectric vibration element configured to be located on a rear surface being opposite to an exposed surface of the cover panel; and a drive module configured to vibrate the piezoelectric vibration element based on a sound signal, wherein the rear surface comprises a first region where the piezoelectric vibration element is disposed, and the first region is located closer to a side of the exposed surface than a second region in the rear surface.

2 . An electronic apparatus according to claim 1 ,
wherein occupancy ratio of the first region to the whole rear surface is smaller than occupancy ratio of the second region to the whole rear surface.

3 . An electronic apparatus according to claim 1 ,
wherein the cover panel is made of sapphire crystal.

4 . An electronic apparatus according to claim 1 ,
wherein the cover panel is formed by bonding a sapphire board and a glass board, the exposed surface is a surface of the sapphire board, and the sapphire board is exposed from the first region of the rear surface.

5 . An electronic apparatus according to claim 1 ,
wherein the electronic apparatus further comprises a display member.

6 . An electronic apparatus according to claim 5 ,
wherein the piezoelectric vibration element is transparent, and the display member and the piezoelectric vibration element overlap with each other in a plan view when viewed from a side of the rear surface of the cover panel.

7 . An electronic apparatus according to claim 1 ,
wherein the exposed surface of the cover panel comprises a third region indicating a state of the electronic apparatus, and the third region and the piezoelectric vibration element overlap with each other in a plan view when viewed from the exposed surface side of the cover panel.

8 . An electronic apparatus according to claim 1 ,
wherein the electronic apparatus further comprises a reinforcing member located in a region facing the first region on the exposed surface to reinforce the cover panel from the exposed surface side.

9 . An electronic apparatus according to claim 1 ,
wherein the electronic apparatus further comprises a blindfold member located in a region facing the first region on the exposed surface to conceal the piezoelectric vibration element from the exposed surface side.

Assignees

• Kyocera Corp

Inventors

• Kanemaki Yasuhito
• Nagoshi Keiichi

Classifications

• H04R2460/13

  Hearing devices using bone conduction transducers · CPC title

• H04R7/045

  using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion · CPC title

• H04M1/03

  Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets · CPC title

• H04R1/021

  incorporating only one transducer · CPC title

• H04R17/00 Primary

  Piezoelectric transducers; Electrostrictive transducers (piezoelectric or electrostrictive elements in general H10N30/00; details of piezoelectric or electrostrictive motors, generators or positioners {H10N30/00}) · CPC title