IP Library Granted Patent US 12,740,238
Granted Patent B2
US 12,740,238 · App. 18/227,305 · Granted Sep 15, 2026

Display panel and electronic apparatus including the same

Inventors: Jongchan Lee (Yongin-si, KR); Yuri Oh (Yongin-si, KR); Kibok Yoo (Yongin-si, KR); Donghyeok Lee (Yongin-si, KR); Jinsuk Lee (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K59/121G09G3/3233H10K59/1201H10K59/65G09G2300/0819G09G2300/0852G09G2300/0861
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Quick Facts
Patent No.
US 12,740,238
App. No.
18/227,305
Granted
Sep 15, 2026
Kind
B2
Abstract

A display panel includes a substrate including an opening area, a display area surrounding at least a portion of the opening area, and an intermediate area disposed between the opening area and the display area, a light-emitting diode arranged in the display area and including a pixel electrode, an opposite electrode, and an intermediate layer disposed between the pixel electrode and the opposite electrode, an inorganic insulating layer arranged in the intermediate layer and defining a groove surrounding the opening area, and a separator arranged in the intermediate area and including a first metal layer arranged in the groove and a second metal layer arranged on the first metal layer and having a tip protruding in a direction crossing an upper surface of the inorganic insulating layer.

Claims (45)

1 . A display panel comprising:

a substrate comprising an opening area, a display area surrounding at least a portion of the opening area, and an intermediate area disposed between the opening area and the display area;

a light-emitting diode arranged in the display area and comprising a pixel electrode, an opposite electrode, and an intermediate layer disposed between the pixel electrode and the opposite electrode;

an inorganic insulating layer arranged in the intermediate area and defining a groove surrounding the opening area; and

a separator arranged in the intermediate area and comprising a first metal layer arranged in the groove and a second metal layer arranged on the first metal layer and having a tip protruding in a direction crossing an upper surface of the inorganic insulating layer.

2 . The display panel of claim 1 , wherein the intermediate layer comprises an emission layer arranged to correspond to the pixel electrode and a functional layer extending from the display area to the intermediate area, and

wherein a protrusion height of the tip protruding from an upper surface of the first metal layer is greater than a sum of a thickness of the functional layer and a thickness of the opposite electrode.

3 . The display panel of claim 2 , wherein the functional layer comprises a first portion overlapping the second metal layer and a second portion disconnected from the first portion.

4 . The display panel of claim 2 , wherein a thickness of the first metal layer is greater than the sum of the thickness of the functional layer and the thickness of the opposite electrode.

5 . The display panel of claim 1 , wherein the opposite electrode comprises: a first portion overlapping the second metal layer and a second portion disconnected from the first portion.

6 . The display panel of claim 1 , further comprising a sub-metal layer arranged between the inorganic insulating layer and the separator.

7 . The display panel of claim 6 , wherein the sub-metal layer covers at least a portion of the upper surface of the inorganic insulating layer, in the intermediate area.

8 . The display panel of claim 6 , wherein the sub-metal layer is arranged only on a side surface and a bottom surface of the groove.

9 . The display panel of claim 8 , further comprising an opening arranged along a central line of the groove and formed through the sub-metal layer, the first metal layer, and the second metal layer.

10 . The display panel of claim 1 , wherein the tip comprises a first tip and a second tip separated from the first tip when viewed in a direction perpendicular to the substrate.

11 . The display panel of claim 1 , wherein the tip forms a first angle with an upper surface of the substrate and the first angle is from 70 degrees to 90 degrees.

12 . The display panel of claim 1 , further comprising an etch stopper arranged between the substrate and the separator and forming a bottom surface of the groove.

13 . The display panel of claim 1 , wherein the groove and the separator are provided in plural,

wherein the intermediate area comprises a first sub-area and a second sub-area,

wherein the inorganic insulating layer comprises a first inorganic insulating layer arranged in the first sub-area and having a first groove and a second inorganic insulating layer arranged in the second sub-area and having a second groove, and

wherein a first height from an upper surface of the substrate to an upper surface of the first inorganic insulating layer is different from a second height from the upper surface of the substrate to an upper surface of the second inorganic insulating layer.

14 . The display panel of claim 13 , wherein a boundary of the second groove is arranged to overlap a boundary between the first sub-area and the second sub-area.

15 . An electronic apparatus comprising:

a display panel comprising an opening area, a display area surrounding at least a portion of the opening area, and an intermediate area disposed between the opening area and the display area; and

a component arranged to overlap the opening area of the display panel,

wherein the display panel comprises:

a substrate;

a light-emitting diode arranged on the substrate to overlap the display area and comprising a pixel electrode, an opposite electrode, and an intermediate layer disposed between the pixel electrode and the opposite electrode;

an inorganic insulating layer arranged on the substrate to overlap the intermediate area and defining a groove surrounding the opening area; and

a separator arranged on the substrate to overlap the intermediate area and comprising a first metal layer arranged in the groove and a second metal layer arranged on the first metal layer and having a tip protruding in a direction crossing an upper surface of the inorganic insulating layer.

16 . The electronic apparatus of claim 15 , wherein the intermediate layer comprises an emission layer arranged to correspond to the pixel electrode and a functional layer extending from the display area to the intermediate area, and

wherein a protrusion height of the tip protruding from an upper surface of the first metal layer is greater than a sum of a thickness of the functional layer and a thickness of the opposite electrode.

17 . The electronic apparatus of claim 16 , wherein a thickness of the first metal layer is greater than the sum of the thickness of the functional layer and the thickness of the opposite electrode.

18 . The electronic apparatus of claim 16 , wherein the functional layer comprises: a first portion overlapping the second metal layer and a second portion disconnected from the first portion.

19 . The electronic apparatus of claim 15 , further comprising a sub-metal layer arranged between the inorganic insulating layer and the separator.

20 . The electronic apparatus of claim 19 , wherein the sub-metal layer covers at least a portion of the upper surface of the inorganic insulating layer, in the intermediate area.

21 . The electronic apparatus of claim 19 , wherein the sub-metal layer is arranged only on a side surface and a bottom surface of the groove.

22 . The electronic apparatus of claim 19 , further comprising an opening arranged along a central line of the groove and formed through the sub-metal layer, the first metal layer, and the second metal layer.

23 . The electronic apparatus of claim 15 , wherein the tip comprises a first tip and a second tip separated from the first tip when viewed in a direction perpendicular to the substrate.

24 . The electronic apparatus of claim 15 , wherein the tip forms a first angle with an upper surface of the substrate and the first angle is from 70 degrees to 90 degrees.

25 . The electronic apparatus of claim 15 , further comprising an etch stopper arranged between the substrate and the separator and forming a bottom surface of the groove.

26 . The electronic apparatus of claim 15 , wherein the groove and the separator are provided in plural,

wherein the intermediate area comprises a first sub-area and a second sub-area,

wherein the inorganic insulating layer comprises a first inorganic insulating layer arranged in the first sub-area and having a first groove and a second inorganic insulating layer arranged in the second sub-area and having a second groove, and

wherein a first height from an upper surface of the substrate to an upper surface of the first inorganic insulating layer is different from a second height from the upper surface of the substrate to an upper surface of the second inorganic insulating layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 28, 2023
From: LEE, JONGCHAN; OH, YURI; YOO, KIBOK; LEE, DONGHYEOK; LEE, JINSUK
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 064412/0554 →
Priority Claims (1)
KR 10-2022-0186372 · Dec 27, 2022 · national
Continuity (1)
Related Publication 20240215307A1 · Jun 27, 2024
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