Display module and display device

Patent metadata

Field	Value
Publication number	US-11805609-B2
Application number	US-202117538682-A
Country	US
Kind code	B2
Filing date	Nov 30, 2021
Priority date	Dec 24, 2020
Publication date	Oct 31, 2023
Grant date	Oct 31, 2023

Abstract

A display module and display device that may suppress a greenish defect and reduce a bezel area while improving a heat-dissipation performance and a shock absorption function include an integral cushion plate including at least one protrusion protruding from and extending along an edge portion of a body with the cushion plate placed on a lower surface of a display panel, and the protrusion brought into contact with a cover member. Further, the protrusion of the cushion plate is bent to have an inclined part so that the protrusion does not contact the side surface of the display panel and contacts the cover member.

First claim

The invention claimed is:

1. A display module comprising:
a cover member;
a display panel disposed under the cover member; and
a cushion plate disposed under the display panel, the cushion plate including a metal foam,
wherein the cushion plate includes a body and at least one protrusion,
wherein the at least one protrusion of the cushion plate is in contact with the cover member,
wherein the display panel includes a front portion, a bent portion, and a pad portion extending from the bent portion of the display panel, the pad portion of the display panel being disposed under the front portion of the display panel, and
wherein the at least one protrusion of the cushion plate is absent from an edge portion of the cushion plate corresponding to the bent portion of the display panel.

2. The display module of claim 1 , wherein the at least one protrusion of the cushion plate is in contact with an edge area of the cover member.

3. The display module of claim 1 , wherein the at least one protrusion of the cushion plate extends from the body of the cushion plate toward the cover member.

4. The display module of claim 1 , wherein the at least one protrusion of the cushion plate has an inclined part.

5. The display module of claim 1 , wherein the at least one protrusion of the cushion plate does not contact a side surface of the display panel.

6. The display module of claim 1 , wherein the cushion plate is connected to a ground.

7. The display module of claim 1 , further comprising a first connection member disposed between the cover member and the display panel,
wherein the first connection member and the at least one protrusion of the cushion plate contact a lower surface of the cover member, and the at least one protrusion of the cushion plate is spaced apart from the first connection member.

8. The display module of claim 1 , wherein the cushion plate further includes an embossed layer,
wherein the metal foam of the cushion plate is disposed under the embossed layer of the cushion plate.

9. The display module of claim 1 , wherein the metal foam of the cushion plate has a porous metal structure having a plurality of pores.

10. The display module of claim 1 , further comprising:
a metal foil disposed on a lower surface of the metal foam of the cushion plate.

11. The display module of claim 10 , wherein the metal foil is additionally disposed on a side surface of the metal foam of the cushion plate.

12. The display module of claim 1 , wherein the metal foam of the cushion plate includes:
a first metal foam layer;
a second metal foam layer; and
a metal foil disposed between the first metal foam layer and the second metal foam layer.

13. The display module of claim 1 , further comprising:
a metal paste disposed on a lower surface of the metal foam.

14. The display module of claim 1 , further comprising:
a heat-dissipation ink layer disposed on a lower surface and a side surfaces of the metal foam of the cushion plate.

15. A display device comprising:
a display module; and
a frame disposed under the display module, the frame being configured to support a cover member,
wherein the display module includes:
the cover member;
a display panel disposed under the cover member; and
a cushion plate disposed under the display panel, wherein the cushion plate includes a metal foam,
wherein the cushion plate includes a body and at least one protrusion,
wherein the at least one protrusion of the cushion plate is in contact with the cover member, and
wherein the display panel includes a front portion, a bent portion, and a pad portion extending from the bent portion of the display panel, the pad portion of the display panel being disposed under the front portion of the display panel,
wherein the at least one protrusion of the cushion plate is absent from an edge portion of the cushion plate corresponding to the bent portion of the display panel.

16. The display module of claim 15 , wherein the at least one protrusion of the cushion plate is in contact with an edge area of the cover member.

17. The display module of claim 15 , wherein the at least one protrusion of the cushion plate extends from the body of the cushion plate toward the cover member.

18. The display module of claim 15 , wherein the at least one protrusion of the cushion plate has an inclined part.

19. The display module of claim 15 , wherein the cushion plate is connected to a ground.

Assignees

• Lg Display Co Ltd

Inventors

• Park Chanhyeok
• Sung Chikyung

Classifications

• H04Q9/00

  Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/8794

  Arrangements for heating and cooling · CPC title

• H10K59/87

  Passivation; Containers; Encapsulations · CPC title

• H10K50/844 Primary

  Encapsulations · CPC title