IP Library Granted Patent US 12663888
Granted Patent B2
US 12663888 · App. 18/105,731 · Granted Jun 23, 2026

Display device having folding area

Inventors: Seung Hwa Ha (Cheongju-si, KR); Do Youb Kim (Suwon-si, KR); Seung-Ho Jung (Hwaseong-si, KR)
Assignee: Samsung Display Co., Ltd.
G06F3/041G06F1/1652G06F1/1641
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Quick Facts
Patent No.
US 12663888
App. No.
18/105,731
Granted
Jun 23, 2026
Kind
B2
Abstract

A display device includes: a display module; a plate on one surface of the display module; and an adhesive layer between the display module and the plate, wherein the plate includes a folding area and a folding peripheral area, the folding area of the plate includes a plurality of grooves, and the adhesive layer overlaps a portion of the folding area.

Claims (46)

1 . A display device comprising:

a display module;

a plate on one surface of the display module; and

an adhesive layer between the display module and the plate,

wherein the plate includes a folding area and a folding peripheral area,

the folding area of the plate includes a plurality of grooves, and

the adhesive layer extends continuously across at least a first one of the plurality of grooves between the display module and the plate to overlap a first portion of the folding area and does not overlap at least a second one of the plurality of grooves at a second portion of the folding area in a plan view,

the plurality of grooves are positioned along a first direction,

the display device is folded in a second direction perpendicular to the first direction, and

a ratio of a length in the second direction of the folding area overlapping the adhesive layer to a length in the second direction of the folding area is in a range of 30% to 60%.

2 . The display device of claim 1 , wherein

the adhesive layer includes areas spaced apart from each other in the second direction, and

the areas spaced apart from each other overlap the folding area.

3 . The display device of claim 2 , wherein

a length in the second direction of the adhesive layer including the areas spaced apart from each other is shorter than a length in the second direction of an area where a groove is formed.

4 . The display device of claim 1 , wherein

the plate further includes a groove in a non-folding area.

5 . The display device of claim 1 , further comprising

a protective member between the display module and the adhesive layer.

6 . The display device of claim 1 , wherein the plurality of grooves are spaced apart from each other in the first direction and the second direction.

7 . The display device of claim 1 , further comprising

a digitizer on an other surface of the plate.

8 . A display device comprising:

a display module;

a plate on one surface of the display module; and

an adhesive layer between the display module and the plate,

wherein the plate includes a folding area and a folding peripheral area,

the folding area of the plate includes a plurality of grooves,

the adhesive layer extends continuously across at least a first one of the plurality of grooves between the display module and the plate to overlap a first portion of the plurality of grooves in the folding area and does not overlap at least a second one of the plurality of grooves at a second portion of the plurality of grooves in the folding area in a plan view, and

the adhesive layer includes a plurality of grooves overlapping the folding area,

the plurality of grooves are positioned along a first direction,

the display device is folded in a second direction perpendicular to the first direction, and

a ratio of a length in the second direction of the folding area overlapping the adhesive layer to a length in the second direction of the folding area is in a range of 30% to 60%.

9 . The display device of claim 8 , wherein

a groove of the adhesive layer overlaps a groove of the plate.

10 . The display device of claim 8 , wherein

a groove of the adhesive layer includes an area that does not overlap a groove of the plate.

11 . The display device of claim 8 , wherein the plurality of grooves of the adhesive layer are positioned along the first direction, and the display device is folded in a second direction perpendicular to the first direction.

12 . The display device of claim 8 , wherein the plurality of grooves of the plate are spaced apart from each other in the first direction and the second direction.

13 . The display device of claim 8 , wherein the plurality of grooves of the adhesive layer are spaced apart from each other in the first direction and the second direction.

14 . The display device of claim 8 , further comprising

a protective member between the display module and the adhesive layer.

15 . The display device of claim 8 , further comprising

a digitizer on an other surface of the plate.

16 . The display device of claim 8 , wherein

the plate further includes a groove in a non-folding area.