IP Library › Granted Patent US 11,678,124
Granted Patent B2
US 11,678,124 · App. 17/532,487 · Granted Jun 13, 2023

Vibration apparatus and apparatus including the same

Inventors: Minji Kim (Paju-si, KR); Sungwook Ko (Paju-si, KR); Seunghyun Sung (Paju-si, KR); SeungRyull Park (Paju-si, KR); YoungWook Ha (Paju-si, KR)
Assignee: LG DISPLAY CO., LTD.
H04R17/00H04R1/028H04R2499/15
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Quick Facts
Patent No.
US 11,678,124
App. No.
17/532,487
Granted
Jun 13, 2023
Kind
B2
Abstract

Discussed is an apparatus including a display panel configured to display an image, a vibration apparatus disposed at a rear surface of the display panel to vibrate the display panel and to generate sound via the display panel, and an adhesive member and a connection member between the display panel and the vibration apparatus.

Claims (79)

1. An apparatus, comprising:

a display panel configured to display an image;

a vibration apparatus disposed at a rear surface of the display panel to vibrate the display panel and to generate sound via the display panel; and

an adhesive member and a connection member between the display panel and the vibration apparatus,

wherein the vibration apparatus comprises two or more vibration structures, and

wherein each of the two or more vibration structures comprises first portions including an inorganic material and a second portion between adjacent first portions, the second portion including an organic material.

2. The apparatus of claim 1 , further comprising a plate disposed at the rear surface of the display panel,

wherein the adhesive member is between the plate and the vibration apparatus, and

wherein the connection member is between the adhesive member and the vibration apparatus.

3. The apparatus of claim 2 , wherein:

the plate comprises one or more of a single nonmetal material, a composite nonmetal material, and a metal material, and

the single nonmetal material or the composite nonmetal material comprises one or more of wood, plastic, glass, cloth, paper, and leather.

4. The apparatus of claim 1 , wherein the vibration apparatus comprises:

a vibration portion;

a first protection member disposed at a first surface of the vibration portion;

a second protection member disposed at a second surface different from the first surface of the vibration portion;

a first electrode layer between the vibration portion and the first protection member; and

a second electrode layer between the vibration portion and the second protection member, and

wherein the connection member is between the first protection member and the adhesive member.

5. The apparatus of claim 4 , wherein the first protection member comprises:

a base member; and

an adhesive layer disposed at a first surface of the base member,

wherein the adhesive layer contacts the vibration portion.

6. The apparatus of claim 1 , further comprising a plate, wherein:

the plate comprises a metal material, and

the connection member comprises a metal material oxidized from the plate.

7. The apparatus of claim 1 , wherein an arrangement direction of the first portions and an arrangement direction of the second portion are the same as a widthwise direction of the display panel or a lengthwise direction of the display panel, or are configured by a combination thereof.

8. The apparatus of claim 7 ,

wherein the first portions have a piezoelectric characteristic, and

wherein the second portion has a ductile characteristic.

9. The apparatus of claim 1 , wherein:

the display panel comprises a first region and a second region,

the vibration apparatus comprises a first vibration device to vibrate the first region and a second vibration device to vibrate the second region, and

each of the first vibration device and the second vibration device comprises the connection member and the adhesive member.

10. The apparatus of claim 1 , wherein the connection member is hardened by a reaction with the adhesive member at a curing temperature of 80° C. or more to 100° C. or less, and

wherein a cross-linking reaction of the adhesive member is induced by the connection member.

11. An apparatus, comprising:

a vibration member;

a vibration apparatus disposed at the vibration member to generate sound via the vibration member; and

a first adhesive member and a connection member between the vibration member and the vibration apparatus,

wherein the vibration apparatus comprises a plurality of vibration generators,

wherein each of the plurality of vibration generators comprises a plurality of vibration structures, and

wherein each of the plurality of vibration generators is stacked to be displaced in the same direction.

12. The apparatus of claim 11 , wherein:

the vibration member comprises a plate,

the plate comprises one or more of a single nonmetal material, a composite nonmetal material, and a metal material,

the single nonmetal material or the composite nonmetal material comprises one or more of wood, plastic, glass, cloth; paper; and leather,

the first adhesive member is between the connection member and the plate, and

the connection member comprises a metal oxide.

13. The apparatus of claim 11 , wherein:

the vibration member comprises a plate having a metal material, and

the connection member comprises a metal material oxidized from the plate.

14. The apparatus of claim 11 , wherein the vibration member comprises one or more of a vehicle interior material, a vehicle glass window, a building ceiling, a building interior material, a building glass window, an aircraft interior material, and an aircraft glass window, a light emitting diode lighting panel, an organic light emitting lighting panel, an inorganic light emitting lighting panel, and a display panel including a plurality of pixels configured to display an image.

15. The apparatus of claim 11 , wherein the plurality of vibration generators comprises:

a first vibration generator;

a second vibration generator overlapped with the first vibration generator; and

a second adhesive member between the first vibration generator and the second vibration generator,

wherein each of the first vibration generator and the second vibration generator comprises a first portion including an inorganic material and a second portion between adjacent first portions, the second portion including an organic material.

16. The apparatus of claim 15 , further comprising a second connection member between the second adhesive member and the second vibration generator,

wherein the second connection member comprises a metal oxide.

17. A vibration apparatus, comprising:

a vibration portion;

a first protection member disposed at a first surface of the vibration portion;

a second protection member disposed at a second surface different from the first surface of the vibration portion;

a connection member disposed over the first protection member;

an adhesive member disposed over the connection member;

a vibration member;

a first vibration generator disposed at the vibration member, the first vibration generator including the vibration portion;

a second vibration generator disposed under the first vibration generator;

another adhesive member between the first vibration generator and the second vibration generator; and

another connection member between the second vibration generator and the another adhesive member,

wherein the adhesive member is between the vibration member and the first vibration generator.

18. The vibration apparatus of claim 17 , wherein the connection member comprises a metal oxide.

19. The vibration apparatus of claim 17 , further comprising a plate disposed at the vibration portion,

wherein the connection member is between the plate and the adhesive member.

20. The vibration apparatus of claim 17 , wherein the another connection member comprises a metal oxide.

21. The vibration apparatus of claim 17 , further comprising:

a plate disposed at the vibration member,

wherein the connection member is between the plate and the adhesive member.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 29, 2021
From: KIM, MINJI; KO, SUNGWOOK; SUNG, SEUNGHYUN; PARK, SEUNGRYULL; HA, YOUNGWOOK
To: LG DISPLAY CO., LTD.
Reel/Frame 058226/0218 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 29, 2021
From: KIM, MINJI; KO, SUNGWOOK; SUNG, SEUNGHYUN; PARK, SEUNGRYULL; HA, YOUNGWOOK
To: LG DISPLAY CO., LTD.
Reel/Frame 058229/0945 →
Priority Claims (1)
KR 10-2020-0181061 · Dec 22, 2020 · national
Continuity (1)
Related Publication 20220201399A1 · Jun 23, 2022
Cited By (1)
US 12,395,784