IP Library Granted Patent US 12,363,468
Granted Patent B2
US 12,363,468 · App. 18/762,636 · Granted Jul 15, 2025

Display apparatus including a vibration module

Inventors: JaeMin Shin (Daegu, KR); ChanHeon Lee (Daegu, KR); Minji Kim (Ulsan, KR); Wangeon Sim (Gyeongsangbuk-do, KR); HyunWook Jang (Daegu, KR)
Assignee: LG DISPLAY CO., LTD.
H04R1/028G06F1/1605G06F1/1616G06F1/1626G06F1/1688H04R7/045H04R17/00H04R2499/15
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Quick Facts
Patent No.
US 12,363,468
App. No.
18/762,636
Granted
Jul 15, 2025
Kind
B2
Abstract

A display apparatus and a computing apparatus including the same are disclosed. A display apparatus includes: a display module including a display panel configured to display an image; a vibration plate at a rear surface of the display module, the vibration plate including a communication part; and a vibration module connected to the vibration plate and configured to vibrate the display module to generate sound. The communication part may include a plurality of first holes at a periphery of the vibration plate and a plurality of second holes adjacent to the vibration module. A shape of the plurality of first holes may be same as or different from a shape of the plurality of second holes.

Claims (71)

1. A display apparatus, comprising:

a display module comprising a display panel configured to display an image;

a vibration plate at a rear surface of the display module, the vibration plate including a communication part;

a vibration module connected to the vibration plate and configured to vibrate the display module to generate sound;

a first air gap between the vibration plate and the rear surface of the display module;

a rear cover at a rear surface of the vibration plate; and

a second air gap between the rear cover and the vibration plate,

wherein the communication part comprises:

a plurality of first holes at a periphery of the vibration plate, and

a plurality of second holes adjacent to the vibration module,

wherein a shape of the plurality of first holes is same as or different from a shape of the plurality of second holes,

wherein the first air gap and the second air gap are connected to each other through the plurality of first holes and the plurality of second holes, and

wherein the rear cover comprises:

a bottom structure at the rear surface of the vibration plate;

a sidewall structure at a lateral surface of the display module; and

a border gap between the sidewall structure and the lateral surface of the display module, the border gap being configured to output sound.

2. The display apparatus of claim 1 , wherein the plurality of first holes are disposed to surround the vibration module.

3. The display apparatus of claim 1 , wherein the plurality of first holes are disposed at certain intervals along the periphery of the vibration plate to surround the vibration module.

4. The display apparatus of claim 1 , wherein:

each of the plurality of first holes has one of a rectangular shape including a short side and a long side, a tetragonal shape including rounded corners, a circular shape, an oval shape, and a polygonal shape; and/or

each of the plurality of second holes has a circular shape or a tetragonal shape.

5. The display apparatus of claim 1 , wherein the plurality of second holes are at a center of the vibration plate.

6. The display apparatus of claim 1 , wherein the plurality of second holes are at a periphery of four lateral sides of the vibration module.

7. The display apparatus of claim 6 , wherein the communication part further comprises a plurality of middle communication holes at a center of the vibration plate.

8. The display apparatus of claim 1 , wherein:

the display module comprises:

a first rear region; and

a second rear region, and

the vibration module comprises:

a first vibration element at the first rear region of the display module; and

a second vibration element at the second rear region of the display module.

9. The display apparatus of claim 8 , wherein the plurality of second holes are between the first vibration element and the second vibration element.

10. The display apparatus of claim 8 , wherein the plurality of second holes are at a periphery of four lateral sides of the vibration module.

11. The display apparatus of claim 10 , wherein the communication part further comprises a plurality of middle communication holes at a center of the vibration plate.

12. The display apparatus of claim 1 , further comprising a plate securing member configured to provide the first air gap between a rear surface of the display panel and the vibration plate.

13. The display apparatus of claim 1 , further comprising a front cover on a periphery of the display module and the border gap,

wherein the front cover comprises at least one sound output part overlapping the border gap.

14. The display apparatus of claim 1 , further comprising a buffering member near the vibration module,

wherein the buffering member is spaced apart from each of the rear surface of the display module and the vibration module.

15. The display apparatus of claim 14 , wherein a height of the buffering member is greater than a height of each of the vibration module with respect to a surface of the vibration plate.

16. The display apparatus of claim 1 , wherein the vibration module comprises a piezoelectric material layer.

17. A computing apparatus, comprising:

a system body;

a display apparatus; and

a hinge part between the system body and the display apparatus, the hinge part being configured to rotatably support the display apparatus,

wherein the display apparatus comprises:

a display module comprising a display panel configured to display an image;

a vibration plate at a rear surface of the display module, the vibration plate including a communication part;

a vibration module connected to the vibration plate and configured to vibrate the display module to generate sound;

a first air gap between the vibration plate and the rear surface of the display module;

a rear cover at a rear surface of the vibration plate; and

a second air gap between the rear cover and the vibration plate,

wherein the communication part comprises:

a plurality of first holes at a periphery of the vibration plate; and

a plurality of second holes adjacent to the vibration module,

wherein a shape of the plurality of first holes is same as or different from a shape of the plurality of second holes,

wherein the first air gap and the second air gap are connected to each other through the plurality of first holes and the plurality of second holes, and

wherein the rear cover comprises:

a bottom structure at the rear surface of the vibration plate;

a sidewall structure at a lateral surface of the display module; and

a border gap between the sidewall structure and the lateral surface of the display module, the border gap being configured to output sound.

18. The computing apparatus of claim 17 , wherein:

each of the plurality of first holes has one of a rectangular shape including a short side and a long side, a tetragonal shape including rounded corners, a circular shape, an oval shape, and a polygonal shape; and/or

each of the plurality of second holes has a circular shape or a tetragonal shape.

19. The computing apparatus of claim 17 , wherein the display module further comprises:

a printed circuit board connected to the display panel;

a user connector on the printed circuit board, the user connector being configured to receive a sound signal input from the system body;

a sound output connector on the printed circuit board, the sound output connector being connected to the vibration module; and

an audio amplifier on the printed circuit board, the audio amplifier being configured to:

amplify the sound signal input through the user connector to generate a sound driving signal; and

output the generated sound driving signal to the sound output connector.

Priority Claims (1)
KR 10-2017-0171211 · Dec 13, 2017 · national
Continuity (5)
Continuation 18202946 · May 28, 2023
Continuation 17377490 · Jul 16, 2021
Continuation 16779573 · Jan 31, 2020
Continuation 16127660 · Sep 11, 2018
Related Publication 20240357269A1 · Oct 24, 2024
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