Display apparatus

Patent metadata

Field	Value
Publication number	US-12328546-B2
Application number	US-202418414300-A
Country	US
Kind code	B2
Filing date	Jan 16, 2024
Priority date	Apr 29, 2020
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

A display apparatus includes a display module including a display panel configured to display an image, a structure at a rear surface of the display module, and a vibration generator at the structure. The structure may include a nonlinear portion covering a periphery of the rear surface of the display module and a sound emission port spaced apart from the rear surface of the display module.

First claim

What is claimed is:

1. A display apparatus, comprising:
a display module including a display panel configured to display an image at a front surface;
a structure at a rear surface of the display module; and
a vibration generator at the structure,
wherein the structure includes:
a nonlinear portion to cover a periphery of the rear surface of the display module along a first direction;
a sound emission port spaced apart from the rear surface of the display module;
a supporting portion configured to support the vibration generator; and
a sound guide portion extending from the supporting portion to one side of the display module and including the nonlinear portion,
wherein the supporting portion includes an inclined surface inclined with respect to the rear surface of the display module,
wherein the vibration generator is disposed on the inclined surface of the supporting portion so as to be nonparallel with the rear surface of the display module,
wherein the vibration generator is in nonparallel with the rear surface of the display module,
wherein a distance between the rear surface of the display module and the vibration generator increases progressively toward one side of the display module in a direction from a center region of the display module to a periphery region of the display module, and
wherein a distance between the rear surface of the display module and the nonlinear portion of the structure decreases progressively toward one side of the display module adjacent to the structure along the first direction.

2. The display apparatus of claim 1 ,
wherein the sound emission port is between one side of the nonlinear portion and the rear surface of the display module.

3. The display apparatus of claim 1 , wherein the nonlinear portion includes a cross-sectional structure having a curved shape.

4. The display apparatus of claim 1 , wherein:
the structure provides a first gap space between the rear surface of the display module and the vibration generator, and a second gap space between the nonlinear portion and the rear surface of the display module; and
the first gap space and the second gap space are connected to the sound emission port.

5. The display apparatus of claim 1 , wherein:
the structure further comprises a sound emission portion protruding from one side of the nonlinear portion; and
the sound emission port is between the sound emission portion and a side surface of the display module.

6. The display apparatus of claim 1 , wherein:
a thickness of the supporting portion is thickened progressively from a center of the display module toward the one side of the display module along the first direction.

7. The display apparatus of claim 1 , wherein the nonlinear portion of the structure comprises a plurality of curved portions having different curvature radiuses.

8. The display apparatus of claim 1 , wherein:
the nonlinear portion of the structure comprises a plurality of curved portions; and
a curvature radius of each of the plurality of curved portions decreases progressively toward the one side of the display module adjacent to the structure.

9. The display apparatus of claim 2 , wherein a length of the sound guide portion is longer than half of a length of the vibration generator and shorter than a total length of the vibration generator, with respect to the first direction.

10. The display apparatus of claim 9 , wherein:
the sound guide portion further comprises a linear portion between the supporting portion and the nonlinear portion; and
a length of the nonlinear portion and a length of the linear portion are the same or different with respect to the first direction.

11. The display apparatus of claim 2 , wherein the supporting portion comprises:
a first supporting portion disposed along the first direction and configured to support a first side of the vibration generator;
a second supporting portion disposed in parallel with the first supporting portion and configured to support a second side of the vibration generator;
a third supporting portion disposed between one side of the first supporting portion and one side of the second supporting portion and configured to support a third side of the vibration generator; and
an opening portion surrounded by the first to third supporting portions.

12. The display apparatus of claim 11 , wherein each of the first supporting portion and the second supporting portion comprises:
a first surface adjacent to and/or in parallel with the rear surface of the display module; and
a second surface nonparallel to the rear surface of the display module.

13. The display apparatus of claim 12 , wherein, in each of the first supporting portion and the second supporting portion, a distance between the first surface and the second surface increases progressively from the third supporting portion to the sound guide portion along the first direction.

14. The display apparatus of claim 11 , wherein the sound guide portion comprises:
a first extension portion extending from the first supporting portion to the one side of the display module along the first direction;
a second extension portion extending from the second supporting portion to the one side of the display module; and
a cover portion covering a space between the first extension portion and the second extension portion.

15. The display apparatus of claim 1 , wherein:
the display module further comprises a supporting member on the rear surface of the display panel, and the structure is disposed at a rear surface of the supporting member; and
the supporting member comprises a first hole, and the first hole overlaps the vibration generator.

16. The display apparatus of claim 15 , further comprising a plate between the supporting member and the structure and configured to cover at least a portion of the first hole of the supporting member.

17. The display apparatus of claim 1 , wherein the vibration generator comprises:
a module frame in the structure;
a bobbin on the module frame;
a magnet inside or outside the bobbin;
a coil wound around the bobbin; and
a damper connected between the module frame and the bobbin.

18. The display apparatus of claim 17 , wherein:
the display module further comprises a supporting member on a rear surface of the display panel, and the structure is disposed at a rear surface of the supporting member; and
the supporting member comprises a first hole, and the first hole overlaps the bobbin.

19. The display apparatus of claim 1 , wherein:
the structure is configured to support the vibration generator and to guide a sound generated by the vibration generator to the sound emission port;
the sound emission port is at an edge of the structure;
the structure does not overlap with at least a half of a thickness of the display module along a thickness direction of the display module; and
the structure is not a part of an outermost product cover.

20. The display apparatus of claim 1 , wherein:
the vibration generator comprises an electrical or magnetic component; and
the supporting portion comprises an opening portion that overlaps with the electrical or magnetic component of the vibration generator.

21. A display apparatus, comprising:
a display module including a display panel configured to display an image at a front surface;
a first vibration generating module at a first region of a rear surface of the display module; and
a second vibration generating module at a second region of the rear surface o

Assignees

• Lg Display Co Ltd

Inventors

• Rhim Jusang
• Lee Minjin
• Kim Daeyong
• Choi Eunhee

Classifications

• H04R3/12

  for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} · CPC title

• H04R2499/15

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

• H04R9/043

  Inner suspension or damper, e.g. spider (outer suspension or surround H04R7/16) · CPC title

• H04R9/025

  Magnetic circuit · CPC title

• H04R9/06

  Loudspeakers · CPC title