Display Apparatus

Patent metadata

Field	Value
Publication number	US-2018317011-A1
Application number	US-201815964822-A
Country	US
Kind code	A1
Filing date	Apr 27, 2018
Priority date	Apr 29, 2017
Publication date	Nov 1, 2018
Grant date	—

Abstract

A display apparatus includes a display panel configured to display an image by emitting light, and a sound generating device on a rear surface of the display panel. The sound generating device includes a bobbin, and a protection member on the bobbin.

First claim

What is claimed is:

1 . A display apparatus, comprising:
a display panel configured to display an image by emitting light; and a sound generating device on a rear surface of the display panel and configured to vibrate the display panel to generate sound, wherein the sound generating device includes:
a bobbin; and
a protection member on the bobbin.

2 . The display apparatus according to claim 1 , wherein the protection member is formed of at least one among fiber reinforced materials, complex resin having fiber reinforced materials, and metal.

3 . The display apparatus according to claim 1 , wherein a first adhesion member is between the bobbin and the protection member.

4 . The display apparatus according to claim 3 , wherein the first adhesion member is formed of epoxy resin or acryl resin.

5 . The display apparatus according to claim 3 , wherein a second adhesion member is between the protection member and the display panel.

6 . The display apparatus according to claim 5 , wherein the second adhesion member is formed of a double-sided tape.

7 . The display apparatus according to claim 1 , further comprising a heat-dissipation member between the display panel and the sound generating device.

8 . The display apparatus according to claim 1 , further comprising a supporting member on the rear surface of the display panel that is configured to support the sound generating device, wherein the supporting member is formed of at least one among metal, glass, and plastic materials.

9 . A display apparatus, comprising:
a display panel configured to display an image by emitting light, the display panel having a first area and a second area; at least one sound generator including a sound generating device configured to vibrate the display panel to generate sound and a protection member on the sound generating device; and at least one partition between the first and second areas, wherein a first of the at least one sound generator is in one of the first and second areas of the display panel.

10 . The display apparatus according to claim 9 , wherein the sound generating device includes a magnet, a center pole, a bobbin, and a coil, and the protection member is on the bobbin.

11 . The display apparatus according to claim 9 , wherein a second of the at least one sound generator is disposed in the other of the first and second areas.

12 . The display apparatus according to claim 11 , wherein the sound generating device in each of the first area and the second area includes a pair of sub sound generating devices.

13 . The display apparatus according to claim 9 , further comprising at least one low sound generating device at an outer portion of the display panel.

14 . The display apparatus according to claim 9 , further comprising a low sound generating device at an outer portion of the display panel in each of the first and second areas.

15 . The display apparatus according to claim 9 , further comprising a heat-dissipation member between the display panel and the protection member of the at least one sound generator.

16 . The display apparatus according to claim 9 , further comprising:
a third partition in a periphery of the display panel, at least a first side among four sides of the third partition having a bent portion that is bent toward the first of the at least one sound generator.

17 . The display apparatus according to claim 16 , further comprising:
one or more protrusions disposed toward the first of the at least one sound generator from at least one side among the four sides of the third partition that is perpendicular to the first side.

18 . The display apparatus according to claim 9 , wherein the sound generating device is configured to vibrate the display panel to generate a middle-high-pitched sound band in the first and second areas.

19 . A display apparatus, comprising:
a display panel configured to display an image by emitting light, the display panel having first, second, and third areas; a sound generating device in each of the first and second areas of the display panel and configured to vibrate the display panel to generate sound; a protection member on the sound generating device; at least one first partition between the first area and the third area; and at least one second partition between the second area and the third area.

20 . The display apparatus according to claim 19 , wherein the sound generating device includes a magnet, a center pole, a bobbin, and a coil, and the protection member is on the bobbin.

21 . The display apparatus according to claim 19 , further comprising a third partition in a periphery of the display panel, at least a first side among four sides of the third partition having a bent portion that is bent toward the sound generating device.

22 . The display apparatus according to claim 21 , further comprising:
one or more protrusions disposed toward the sound generating device from at least one side among the four sides of the third partition that is perpendicular to the first side.

23 . The display apparatus according to claim 19 , wherein:
each of the first and second partitions includes a first side and a second side that is perpendicular to the first side, and one or more protrusions protrude toward the sound generating device from at least one of the second side of the first partition and the second side of the second partition.

24 . The display apparatus according to claim 19 , further comprising: a sound generating device in the third area.

25 . The display apparatus according to claim 24 , wherein the sound generating device is in the third area includes a pair of sub sound generating devices.

26 . The display apparatus according to claim 19 , further comprising:
another sound generating device in at least one of the first and second areas.

27 . The display apparatus according to claim 26 ,
wherein the sound generating device and the another sound generating device are respectively configured to generate a high-pitched sound band and a middle-pitched sound band.

28 . The display apparatus according to claim 27 , further comprising a sound generating device in the third area,
wherein the sound generating device in the third area is configured to generate a low-pitched sound band.

29 . The display apparatus according to claim 26 , wherein the another sound generating device in at least one of the first area and the second area includes a pair of sub sound generating devices.

30 . The display apparatus according to claim 26 , further comprising:
a third partition in a periphery of the display panel; and a fourth partition between the sound generating device and the another sound generating device in at least one of the first area and the second area.

Assignees

• Lg Display Co Ltd

Inventors

• CHOI YeongRak
• Park Kwanho
• Lee Sungtae

Classifications

• H04R9/06 Primary

  Loudspeakers · CPC title

• H04R2499/15

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

• H04R2400/03

  Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones · CPC title

• H04R7/04 Primary

  Plane diaphragms · CPC title

• H04R9/025

  Magnetic circuit · CPC title