IP Library › Granted Patent US 12710791
Granted Patent B2
US 12710791 · App. 18/152,411 · Granted Aug 18, 2026

Display apparatus and method of manufacturing the display apparatus

Inventors: Junhyeong Kim (Yongin-si, KR); Youngmin Cho (Yongin-si, KR); Woosuk Jang (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G06F1/1656G06F1/1616G06F1/1652
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12710791
App. No.
18/152,411
Granted
Aug 18, 2026
Kind
B2
Abstract

A display apparatus includes a display panel including a display area and a peripheral area surrounding the display area, where the peripheral area includes a bending area extending from one side thereof, a cover window arranged on the display area of the display panel, an adhesive layer between the display panel and the cover window, and a protective layer covering the bending area and in contact with the adhesive layer, where a modulus of the adhesive layer is less than a modulus of the protective layer.

Claims (41)

1 . A display apparatus comprising:

a display panel including a display area and a peripheral area surrounding the display area, wherein the peripheral area includes a bending area extending from one side thereof, wherein the display panel comprises a substrate, a pixel circuit layer, a display element layer and a thin-film encapsulation layer;

a cover window arranged on the display area of the display panel;

an adhesive layer between the thin-film encapsulation layer of the display panel and the cover window, wherein the cover window is in contact with the adhesive layer and attached to the display panel via the adhesive layer; and

a protective layer covering the bending area and in contact with the adhesive layer,

wherein a modulus of the adhesive layer is less than a modulus of the protective layer.

2 . The display apparatus of claim 1 , wherein the protective layer includes a convex portion in an area adjacent to a contact point where the protective layer and the adhesive layer are in contact with each other.

3 . The display apparatus of claim 2 , wherein a height of the protective layer at the contact point is greater than a height of the adhesive layer at the contact point.

4 . The display apparatus of claim 3 , wherein one end of the cover window is spaced apart from the contact point in a direction away from the protective layer.

5 . The display apparatus of claim 4 , wherein the cover window exposes the adhesive layer between the one end of the cover window and the contact point.

6 . The display apparatus of claim 1 , wherein the protective layer includes a concave portion in an area adjacent to a contact point where the protective layer and the adhesive layer are in contact with each other.

7 . The display apparatus of claim 6 , wherein a height of the protective layer at the contact point is less than a height of the adhesive layer at the contact point.

8 . The display apparatus of claim 6 , wherein

the cover window covers the contact point, and

one end of the cover window overlaps the concave portion on a plane.

9 . The display apparatus of claim 6 , wherein one surface of the cover window is spaced apart from a concave surface of the concave portion in a height direction.

10 . The display apparatus of claim 1 , wherein the protective layer and the adhesive layer are in contact with each other and do not overlap each other on a plane.

11 . The display apparatus of claim 1 , wherein the display apparatus is folded with respect to a folding axis extending in one direction.

12 . A method of manufacturing a display apparatus, the method comprising:

preparing a display panel including a display area and a peripheral area surrounding the display area, wherein the peripheral area includes a bending area extending from one side thereof, wherein the display panel comprises a substrate, a pixel circuit layer, a display element layer and a thin-film encapsulation layer;

providing an adhesive layer on the thin-film encapsulation layer of the display panel;

providing a protective layer to cover the bending area and to be in contact with the adhesive layer, wherein the protective layer has a modulus greater than a modulus of the adhesive layer; and

providing a cover window on the adhesive layer, wherein the cover window is in contact with the adhesive layer and attached to the display panel via the adhesive layer.

13 . The method of claim 12 , wherein the providing protective layer comprises applying the protective layer not to overlap the adhesive layer on a plane, by using the adhesive layer as a dam.

14 . The method of claim 13 , wherein the providing the protective layer further comprises forming a convex portion in the protective layer in an area adjacent to a contact point where the protective layer and the adhesive layer are in contact with each other.

15 . The method of claim 14 , wherein the providing the cover window comprises providing the cover window in a way such that one end of the cover window is spaced apart from the contact point in a direction away from the protective layer.

16 . The method of claim 14 , further comprising:

removing the convex portion and forming a concave portion in the protective layer, in the area adjacent to the contact point where the protective layer and the adhesive layer are in contact with each other.

17 . The method of claim 16 , wherein the providing the cover window comprises providing the cover window in a way such that the cover window covers the contact point and one end of the cover window overlaps the concave portion on a plane.

18 . The method of claim 17 , wherein one surface of the cover window is spaced apart from a concave surface of the concave portion not to be in contact with the concave surface of the concave portion.

19 . The method of claim 12 , wherein the providing the adhesive layer comprises providing the adhesive layer with a release film attached to an upper portion of the adhesive layer, and

the providing the protective layer comprises applying the protective layer not to overlap the adhesive layer and the release film on a plane, by using the adhesive layer and the release film as a dam,

wherein, after the providing protective layer, the release film is removed before the providing the cover window on the adhesive layer.

20 . The method of claim 19 , wherein a height of the protective layer a contact point where the protective layer and the adhesive layer are in contact with each other is greater than a height of the adhesive layer at the contact point.

21 . An electronic apparatus comprising a display apparatus,

wherein the display apparatus comprises:

a display panel including a display area and a peripheral area surrounding the display area, wherein the peripheral area includes a bending area extending from one side thereof, wherein the display panel comprises a substrate, a pixel circuit layer, a display element layer and a thin-film encapsulation layer;

a cover window arranged on the display area of the display panel;

an adhesive layer between the thin-film encapsulation layer of the display panel and the cover window, wherein the cover window is in contact with the adhesive layer and attached to the display panel via the adhesive layer; and

a protective layer covering the bending area and in contact with the adhesive layer,

wherein a modulus of the adhesive layer is less than a modulus of the protective layer.