Display device and method for bonding the same

Patent metadata

Field	Value
Publication number	US-11590748-B2
Application number	US-202016908819-A
Country	US
Kind code	B2
Filing date	Jun 23, 2020
Priority date	Aug 19, 2019
Publication date	Feb 28, 2023
Grant date	Feb 28, 2023

Abstract

A display device includes a window including a planar portion and a bending portion that is bent from the planar portion. A display module is disposed below the window. The display module includes a central portion overlapping the planar portion and an edge portion overlapping the bending portion. An adhesive member including an adhesive layer is disposed between the window and the display module. A lubrication layer overlaps at least a portion of the adhesive layer.

First claim

What is claimed is:

1. A display device, comprising:
a window comprising a planar portion and a bending portion that is bent from the planar portion;
a display module disposed below the window and comprising a central portion at least partially overlapping the planar portion, and an edge portion at least partially overlapping the bending portion;
an adhesive member disposed between the window and the display module; and
a lubrication layer disposed between the adhesive member and the window,
wherein an adhesion force of the adhesive member ranges of 1 gf/inch to 30 gf/inch at a first temperature, and the adhesion force of the adhesive member ranges of 300 to 3,000 gf/inch at a second temperature greater than the first temperature.

2. The display device of claim 1 , wherein the adhesive member is absorbed within the lubrication layer.

3. The display device of claim 1 , further comprising an auxiliary lubrication layer disposed on a rear surface of the window facing the adhesive member.

4. The display device of claim 1 , wherein the lubrication layer overlaps the window and the display module between the bending portion and the edge portion thereof.

5. The display device of claim 1 , wherein the bending portion comprises a first part and a second part, which are respectively bent from a first end and a second end of the planar portion in a first direction.

6. The display device of claim 5 , wherein the bending portion further comprises a third part and a fourth part, which are respectively bent from a third end and a fourth end of the planar portion in a second direction perpendicular to the first direction.

7. The display device of claim 6 , wherein the edge portion comprises:
first and second edge portions that are respectively bent from the first end and the second end of the central portion in the first direction; and
third and fourth edge portions that are respectively bent from the third end and the fourth end of the central portion in the second direction,
wherein the first to fourth edge portions overlap the first to fourth parts of the bending portion, respectively.

8. The display device of claim 1 , wherein the lubrication layer includes an oil.

9. The display device of claim 1 , wherein the window defines a display area configured to display an image, the display area comprises a first display area corresponding to the planar portion and a second display area corresponding to the bending portion, and the display module displays a first image through the first display area and displays a second image different from the first image through the second display area.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Tae Hyun
• Lee Seungmin
• Kim Minjoo
• Shim Donghwan
• Lee Jungkyu

Classifications

• B32B37/12 Primary

  characterised by using adhesives · CPC title

• G02F1/133308 Primary

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• B32B2457/20

  Displays, e.g. liquid crystal displays, plasma displays · CPC title

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/133325

  Assembling processes · CPC title