IP Library › Granted Patent US 12,748,461
Granted Patent B2
US 12,748,461 · App. 18/781,521 · Granted Sep 29, 2026

Display device having bendable area

Inventors: Yunjae Kim (Cheonan-si, KR); Jinhyoung Kim (Seoul, KR); Jin Yong Sim (Seongnam-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G06F1/1652G02B1/11G02B1/14G06F1/181G09F9/301H10K59/87H10K59/8722H10K59/873H10K59/8794H10K59/8792
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Quick Facts
Patent No.
US 12,748,461
App. No.
18/781,521
Granted
Sep 29, 2026
Kind
B2
Abstract

Provided is a display device including a display panel including a first area, a second area, and a bendable area which is disposed between the first and second areas and is bent so that the second area is disposed below the first area, a driving IC disposed below the second area, a window disposed on the first area, a window protection layer disposed on the window, and a first panel protection layer disposed below the first area. When viewed on a plane, one side of the window protection layer and one side of the window are spaced apart from a first boundary between the first area and the bendable area, and the one side of the window protection layer is disposed between the first boundary and the one side of the window.

Claims (59)

1 . An electronic device comprising:

a pen; and

a display device that sense input of the pen,

wherein the display device comprises:

a display panel comprising a first area, a second area, and a bendable area between the first area and the second area, wherein the bendable area is bent so that the second area is disposed below the first area;

a driving integrated circuit disposed below the second area;

a window disposed on the first area; and

a window protection layer disposed on the window;

wherein, one side of the window protection layer and one side of the window are spaced apart from a first boundary between the first area and the bendable area in a horizontal direction, and

a gap between the one side of the window protection layer and the first boundary is smaller than a gap between the one side of the window protection layer and the one side of the window.

2 . The electronic device of claim 1 , further comprising:

a first panel protection layer disposed below the first area,

an impact absorption layer disposed between the window and the first area; and

an anti-reflection layer disposed between the impact absorption layer and the first area,

wherein the one side of the window protection layer protrudes closer to the first boundary than the one side of the window in the horizontal direction,

when viewed in plan, one side of the impact absorption layer overlaps with the one side of the window, and

one side of the anti-reflection layer is further spaced apart from the first boundary than the one side of the impact absorption layer.

3 . The electronic device of claim 2 , further comprising:

a first coating layer applied on a top surface of the window protection layer; and

a second coating layer applied on a bottom surface of the impact absorption layer.

4 . The electronic device of claim 2 , further comprising:

a first adhesion layer disposed between the window protection layer and the window;

a second adhesion layer disposed between the window and the impact absorption layer;

a third adhesion layer disposed between the impact absorption layer and the anti-reflection layer; and

a fourth adhesion layer disposed between the anti-reflection layer and the first area.

5 . The electronic device of claim 4 , wherein, when viewed in plan, one side of the first adhesion layer overlaps with the one side of the window protection layer,

one side of the second adhesion layer is disposed between the one side of the window and the one side of the anti-reflection layer,

one side of the third adhesion layer is further spaced apart from the first boundary than the one side of the anti-reflection layer, and

one side of the fourth adhesion layer overlaps with the one side of the anti-reflection layer.

6 . The electronic device of claim 2 , further comprising a protection layer spaced apart from the anti-reflection layer and disposed between the impact absorption layer and the first area and extending to the bendable area and a portion of the second area, which is adjacent to the bendable area.

7 . The electronic device of claim 6 , further comprising:

a first step compensation layer disposed between the protection layer and the driving IC; and

a second step compensation layer disposed below the first step compensation layer to extend below a portion of the protection layer, which is adjacent to the first step compensation layer,

wherein the second step compensation layer is spaced apart from a second boundary between the bendable area and the second area.

8 . The electronic device of claim 7 , wherein the first step compensation layer has the same thickness as the protection layer in a direction perpendicular to a plane of the first area.

9 . The electronic device of claim 7 , wherein the sum of thicknesses of the first and second step compensation layers is the same as that of the driving IC in a direction perpendicular to a plane of the first area.

10 . The electronic device of claim 7 , further comprising:

a first insulation tape disposed below the second step compensation layer to extend below the driving IC;

a conductive layer disposed below the first insulation tape; and

a second insulation tape disposed below the conductive layer.

11 . The electronic device of claim 10 , wherein, when viewed in plan, one side of the second step compensation layer, which is adjacent to the second boundary, one side of the first insulation tape, which is adjacent to the second boundary, and one side of the conductive layer, which is adjacent to the second boundary, are spaced apart from the second boundary to overlap with each other.

12 . The electronic device of claim 11 , wherein the second insulation tape does not overlap with a portion of the conductive layer, which is adjacent to the one side of the conductive layer.

13 . The electronic device of claim 1 , wherein, one side of the first panel protection layer protrudes closer to the first boundary than the one side of the window protection layer in the horizontal direction.

14 . The electronic device of claim 13 , further comprising a cover layer disposed between the first panel protection layer and the second area and spaced apart from the bendable area.

15 . The electronic device of claim 14 , wherein, when viewed in plan, one side of the cover layer is further spaced apart from the first boundary than the one side of the first panel protection layer.

16 . The electronic device of claim 14 , wherein, one side of the cover layer protrudes closer to the one side of window protection layer than the one side of the window in the horizontal direction.

17 . The electronic device of claim 14 , further comprising:

a plate disposed between the cover layer and the second area;

a spacer disposed between the plate and the second area; and

a second panel protection layer disposed between the spacer and the second area.

18 . The electronic device of claim 17 , wherein, when viewed in plan, one side of the plate and one side of the spacer overlap with one side of the cover layer.

19 . The electronic device of claim 17 , wherein, when viewed in plan, one side of the second panel protection layer is disposed between the one side of the first panel protection layer and one side of the cover layer.

20 . The electronic device of claim 17 , further comprising a fifth adhesion layer disposed between the first area and the first panel protection layer, wherein the cover layer comprises:

a barrier layer disposed below the first panel protection layer;

a cushion layer disposed below the barrier layer;

a sixth adhesion layer disposed between the first panel protection layer and the barrier layer; and

a seventh adhesion layer disposed between the cushion layer and the plate,

wherein one side of the fifth adhesion layer overlaps with the one side of the first panel protection layer,

one side of the barrier layer, one side of the cushion layer, one side of the sixth adhesion layer, and one side of the seventh adhesion layer overlap with each other, and the cushion layer is disposed directly on a bottom surface of the barrier layer.

Priority Claims (2)
KR 10-2020-0018451 · Feb 14, 2020 · national
KR 10-2020-0026758 · Mar 3, 2020 · national
Continuity (3)
Continuation 18195356 · May 9, 2023
Continuation 17103788 · Nov 24, 2020
Related Publication 20240377558A1 · Nov 14, 2024
References Cited (38)
US 10048786B2 · Ahn et al. · 2018 [cited by applicant]
US 10197719B2 · Kang et al. · 2019 [cited by applicant]
US 10374191B2 · Jung et al. · 2019 [cited by applicant]
US 10388713B2 · Son et al. · 2019 [cited by applicant]
US 10698245B2 · Imazeki et al. · 2020 [cited by applicant]
US 10777101B2 · Park · 2020 [cited by applicant]
US 10845911B2 · Lim et al. · 2020 [cited by applicant]
US 11686883B2 · Kim · 2023 [cited by examiner]
US 20120280826A1 · Tanaka et al. · 2012 [cited by applicant]
US 20160070306A1 · Shin · 2016 [cited by examiner]
US 20160218305A1 · Kim et al. · 2016 [cited by applicant]
US 20170005083A1 · Choi et al. · 2017 [cited by applicant]
US 20170047547A1 · Son et al. · 2017 [cited by applicant]
US 20180090702A1 · Um et al. · 2018 [cited by applicant]
US 20190006615A1 · Jung et al. · 2019 [cited by applicant]
US 20190023860A1 · Kim et al. · 2019 [cited by applicant]
US 20190164487A1 · Lee et al. · 2019 [cited by applicant]
US 20190235299A1 · Imazeki et al. · 2019 [cited by applicant]
US 20190341443A1 · Son et al. · 2019 [cited by applicant]
US 20190377447A1 · Lee et al. · 2019 [cited by applicant]
US 20210280826A1 · Kim et al. · 2021 [cited by applicant]
CN 105976701A · 2016 [cited by applicant]
CN 106910425A · 2017 [cited by applicant]
CN 108288632A · 2018 [cited by applicant]
CN 108473703A · 2018 [cited by applicant]
CN 109216412A · 2019 [cited by applicant]
CN 110134270A · 2019 [cited by applicant]
CN 110444113A · 2019 [cited by applicant]
EP 3876079A1 · 2021 [cited by applicant]
JP 2010266777 · 2010 [cited by applicant]
KR 1020140118676 · 2014 [cited by applicant]
KR 1020180082717 · 2018 [cited by applicant]
KR 1020190135173 · 2019 [cited by applicant]
KR 1020190140129 · 2019 [cited by applicant]
KR 1020210113480 · 2021 [cited by applicant]
Extended European Search Report dated Jul. 8, 2021, issued in European Patent Application No. 21153664.4. [cited by applicant]
Non-Final Office Action issued Nov. 14, 2022, in U.S. Appl. No. 17/103,788. [cited by applicant]
Notice of Allowance issued Feb. 16, 2023, in U.S. Appl. No. 17/103,788. [cited by applicant]