Display device unit

Patent metadata

Field	Value
Publication number	US-9436320-B2
Application number	US-201313969993-A
Country	US
Kind code	B2
Filing date	Aug 19, 2013
Priority date	Dec 12, 2012
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

A display device unit includes: a display device; and a sound element disposed at a side surface or a rear surface of the display device, where the sound element includes a vibration material layer which provides a sound based on an electric field applied therein, and a pair of electrodes which generates the electric field in the vibration material layer.

First claim

What is claimed is:

1. A display device unit comprising:
a display device;
a sound element disposed at a side surface or a rear surface of the display device;
a vibration plate disposed between the display device and the sound element; and
a back chassis disposed at a rear surface of the display device, and comprising a fixing protrusion which protrudes toward the rear surface of the display device,
wherein the sound element comprises:
a vibration material layer which generates a sound based on an electric field applied therein, and
a pair of electrodes which generate the electric field in the vibration material layer, and
wherein the fixing protrusion is formed integrally with the back chassis and of the same material as that of the back chassis, and
wherein the sound element is disposed between the fixing protrusion and the vibration plate and the fixing protrusion overlaps a center of the sound element and contacts one of the electrodes of the sound element such that the fixing protrusion effectively prevents the sound element from being displaced by vibration.

2. The display device unit of claim 1 , further comprising:
a first spacer disposed between the sound element and the vibration plate.

3. The display device unit of claim 2 , further comprising:
a second spacer attached between the sound element and the back chassis.

4. The display device unit of claim 2 , wherein
the sound element is provided as a pair.

5. The display device unit of claim 1 , further comprising:
a window disposed on a front surface of the display device.

6. The display device unit of claim 1 , further comprising:
a receiver disposed at the side surface of the display device and an inner surface of the window,
wherein the receiver comprises the sound element and generates the sound.

7. The display device unit of claim 6 , wherein
an opening exposing the receiver is not defined in the window.

8. The display device unit of claim 1 , wherein
the vibration material layer of the sound element generates a vibration of a frequency outside an audible frequency, and
a haptic function the display device unit uses a change of the frequency of the vibration of the vibration material layer by a touch of a user.

Assignees

• Samsung Display Co Ltd

Inventors

• Kang Ha-Yun
• Oh Joon Hak
• Lee Jong Seo

Classifications

• H04R2499/15

  Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops · CPC title

• G06F3/043 Primary

  using propagating acoustic waves · CPC title

• H04R2400/00

  Loudspeakers · CPC title

• G06F3/016

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title

• H04R2499/11

  Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's · CPC title