IP Library Granted Patent US 12,684,939
Granted Patent B2
US 12,684,939 · App. 17/936,833 · Granted Jul 14, 2026

Display apparatus including a bending protection layer over a connection wire

Inventors: Jeongseok Lee (Yongin-si, KR); Ohjune Kwon (Yongin-si, KR); Wooyong Sung (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K50/844H10K50/868H10K59/122H10K59/131H10K2102/311
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 12,684,939
App. No.
17/936,833
Filed
Sep 29, 2022
Granted
Jul 14, 2026
Kind
B2
Art Unit
2892
USPC
257/40
Abstract

A display apparatus includes a substrate including a first area, a second area, and a bending area between the first area and the second area, a plurality of display devices arranged in the first area, a thin film encapsulation layer covering the plurality of display devices and including a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer, a connection wire extending from the first area to the second area across the bending area, and a bending protection layer covering the connection wire in the bending area and covering at least a portion of the thin film encapsulation layer, and the bending protection layer includes a light-blocking material.

Claims (53)

1 . A display apparatus comprising:

a substrate comprising a first area, a second area, and a bending area between the first area and the second area;

a plurality of display devices arranged in a display area of the first area;

a thin film encapsulation layer covering the plurality of display devices and comprising a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer;

a polarizing film over the thin film encapsulation layer in the first area;

an adhesive layer between the thin film encapsulation layer and the polarizing film in the first area;

a dam surrounding at least a portion of the display area;

a driving power line arranged between the display area and the dam;

a connection wire extending from the first area to the second area across the bending area; and

a bending protection layer covering the connection wire in the bending area, covering and contacting at least a portion of the thin film encapsulation layer, covering at least a portion of the dam, and covering the driving power line,

wherein the bending protection layer comprises a light-blocking material, and

wherein at least a portion of the bending protection layer is disposed under both the adhesive layer and the polarizing film, and overlaps with both the adhesive layer and the polarizing film.

2 . The display apparatus of claim 1 , wherein an optical density of the bending protection layer is greater than or equal to 1 and less than or equal to 5.

3 . The display apparatus of claim 1 , further comprising a common power line at least partially surrounding the display area,

wherein the dam covers an edge of the common power line.

4 . The display apparatus of claim 1 , wherein the dam comprises a first dam and a second dam spaced apart from each other,

wherein the bending protection layer overlaps the first dam and the second dam.

5 . The display apparatus of claim 1 , wherein the plurality of display devices comprises a common opposite electrode, and the bending protection layer covers an end of the common opposite electrode.

6 . The display apparatus of claim 1 , wherein emission areas of the plurality of display devices are defined by openings in a pixel-defining layer arranged in the first area, and the bending protection layer at least partially overlaps the pixel-defining layer.

7 . The display apparatus of claim 1 , further comprising:

an inorganic insulating layer arranged on the substrate and comprising an opening or a groove corresponding to the bending area; and

an organic material layer arranged between the inorganic insulating layer and the connection wire and filling the opening or the groove.

8 . The display apparatus of claim 1 , wherein at least a portion of the bending protection layer is between the substrate and the polarizing film.

9 . The display apparatus of claim 1 , further comprising an inorganic insulating layer arranged on the substrate and comprising an opening or a groove corresponding to the bending area,

wherein the inorganic insulating layer is between the substrate and the connection wire.

10 . The display apparatus of claim 9 , further comprising an organic material layer arranged between the inorganic insulating layer and the connection wire and filling the opening or the groove.

11 . The display apparatus of claim 10 , wherein at least a portion of an upper surface of the organic material layer comprises a corrugated surface.

12 . The display apparatus of claim 1 , further comprising a protection film on a lower surface of the substrate,

wherein the protection film comprises an opening portion corresponding to the bending area.

13 . A display apparatus comprising:

a substrate comprising a first area, a second area, and a bending area between the first area and the second area;

a plurality of display devices arranged in a display area of the first area;

a dam surrounding at least a portion of the display area;

a driving power line disposed between the display area and the dam and extending in a first direction;

a polarizing film arranged in the first area and located over the plurality of display devices;

an adhesive layer disposed under the polarizing film;

a connection wire extending from the first area to the second area in a second direction intersecting the first direction across the bending area; and

a bending protection layer covering the connection wire in the bending area,

wherein at least a portion of the bending protection layer overlaps the polarizing film and the driving power line, and the bending protection layer comprises a light-blocking material,

wherein, in the first area, a thickness of a portion of the bending protection layer overlapping the connection wire is greater than a thickness of another portion of the bending protection layer overlapping the dam, and

wherein at least a portion of the bending protection layer is disposed under both the adhesive layer and the polarizing film, and overlaps with both the adhesive layer and the polarizing film.

14 . The display apparatus of claim 13 , wherein an optical density of the bending protection layer is greater than or equal to 1 and less than or equal to 5.

15 . The display apparatus of claim 13 , further comprising:

a thin film encapsulation layer covering the plurality of display devices and comprising a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer,

wherein the plurality of display devices is arranged in the display area,

wherein the bending protection layer overlaps at least a portion of the dam.

16 . The display apparatus of claim 15 , further comprising a common power line at least partially surrounding the display area,

wherein the dam covers an edge of the common power line.

17 . The display apparatus of claim 13 , wherein the plurality of display devices comprises a common opposite electrode, and the bending protection layer covers an end of the common opposite electrode.

18 . The display apparatus of claim 13 , wherein emission areas of the plurality of display devices are defined by openings in a pixel-defining layer arranged in the first area, and the bending protection layer at least partially overlaps the pixel-defining layer.

19 . The display apparatus of claim 13 , further comprising:

an inorganic insulating layer arranged on the substrate and comprising an opening or a groove corresponding to the bending area; and

an organic material layer arranged between the inorganic insulating layer and the connection wire and filling the opening or the groove.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2022
From: LEE, JEONGSEOK; KWON, OHJUNE; SUNG, WOOYONG
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 061580/0355 →
Priority Claims (1)
KR 10-2021-0172261 · Dec 3, 2021 · national
Continuity (1)
Related Publication 20230180513A1 · Jun 8, 2023
References Cited (23)
US 9614168B2 · Zhang et al. · 2017 [cited by applicant]
US 10153457B2 · Son et al. · 2018 [cited by applicant]
US 10490755B2 · Jang et al. · 2019 [cited by applicant]
US 10897018B2 · Jeon et al. · 2021 [cited by applicant]
US 20170047547A1 · Son et al. · 2017 [cited by applicant]
US 20180047802A1 · Yoon · 2018 [cited by examiner]
US 20190095007A1 · Jeong · 2019 [cited by examiner]
US 20190267569A1 · Kim · 2019 [cited by examiner]
US 20200152707A1 · Won et al. · 2020 [cited by applicant]
US 20200411629A1 · Kim · 2020 [cited by examiner]
US 20210193972A1 · Noh · 2021 [cited by examiner]
US 20210265436A1 · Jeon et al. · 2021 [cited by applicant]
US 20220158139A1 · Kim · 2022 [cited by examiner]
US 20220181592A1 · Jeong · 2022 [cited by examiner]
US 20240206252A1 · Li · 2024 [cited by examiner]
KR 1020170020674A · 2017 [cited by applicant]
KR 1020180018966A · 2018 [cited by applicant]
KR 1020180033364A · 2018 [cited by applicant]
KR 101899831B1 · 2018 [cited by applicant]
KR 1020190100564A · 2019 [cited by applicant]
KR 1020200053991A · 2020 [cited by applicant]
KR 20210086318A · 2021 [cited by examiner]
KR 1020210107218A · 2021 [cited by applicant]