Cushion plate, display apparatus including the same, and method for manufacturing the cushion plate

Patent metadata

Field	Value
Publication number	US-12459233-B2
Application number	US-202217992456-A
Country	US
Kind code	B2
Filing date	Nov 22, 2022
Priority date	Dec 24, 2021
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

A display apparatus includes a display panel to display an image and a cushion plate disposed under the display panel. The cushion plate has an adhesive member and a porous member including a body portion area and a side portion area disposed along a side face of the body portion area. A thickness of the side portion area is smaller than a thickness of the body portion area. A porosity of the side portion area is lower than a porosity of the body portion area.

First claim

What is claimed is:

1 . A display apparatus, comprising:
a display panel to display an image; and a cushion plate disposed under the display panel, the cushion plate having:
an adhesive member, and
a porous member including a body portion area and a side portion area disposed along a side face of the body portion area,
wherein a thickness of the side portion area is smaller than a thickness of the body portion area, and wherein a porosity of the side portion area is lower than a porosity of the body portion area.

2 . The display apparatus of claim 1 , wherein the porous member includes a conductive metal and a plurality of pores disposed inside the conductive metal.

3 . The display apparatus of claim 2 , wherein at least a portion of the adhesive member is present in at least some of the plurality of pores.

4 . The display apparatus of claim 2 , wherein the porous member includes a metal foam.

5 . The display apparatus of claim 4 , wherein the thickness of the side portion area decreases from an inner side of the side portion area to an outer side of the side portion area.

6 . The display apparatus of claim 4 , wherein the side portion area has a constant thickness from an inner side of the side portion area to an outer side of the side portion area.

7 . The display apparatus of claim 4 , wherein the porous member further includes a step area located directly below the side portion area and having a thickness corresponding to a difference between the thicknesses of the body portion area and the side portion area.

8 . The display apparatus of claim 4 , wherein the cushion plate further includes a conductive member surrounding the adhesive member and at least a portion of the porous member.

9 . The display apparatus of claim 8 , wherein the conductive member surrounds the adhesive member and the side portion area.

10 . The display apparatus of claim 9 , further comprising:
a cover member disposed on a top face of the display panel; and a middle frame disposed under the cushion plate, wherein one end of the middle frame is fixed to the cover member, and wherein the other end of the middle frame is fixed to the conductive member.

11 . A cushion plate, comprising:
an adhesive member; and a porous member disposed on the adhesive member, the porous member:
including a conductive metal and a plurality of pores disposed inside the conductive metal, and
having a body portion area and a side portion area disposed along a side face of the body portion area,
wherein a thickness of the side portion area is smaller than a thickness of the body portion area, and wherein a porosity of the side portion area is lower than a porosity of the body portion area.

12 . The cushion plate of claim 11 , wherein at least a portion of the adhesive member is present in at least some of the plurality of pores of the porous member.

13 . The cushion plate of claim 11 , wherein the porous member includes a metal foam.

14 . The cushion plate of claim 13 , wherein the thickness of the side portion area decreases from an inner side of the side portion area to an outer side of the side portion area.

15 . The cushion plate of claim 13 , wherein the cushion plate further includes a conductive member surrounding the adhesive member and the side portion area.

Assignees

• Lg Display Co Ltd

Inventors

• Park Chanhyeok

Classifications

• B32B2266/045

  Metal · CPC title

• B32B15/046

  of foam · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K77/111

  Flexible substrates · CPC title