Display device

Patent metadata

Field	Value
Publication number	US-12075645-B2
Application number	US-201817050817-A
Country	US
Kind code	B2
Filing date	Nov 21, 2018
Priority date	Jun 28, 2018
Publication date	Aug 27, 2024
Grant date	Aug 27, 2024

Abstract

A display device includes: a substrate defining an opening and including a display area and a non-display area between the opening and display area, a pixel array including a plurality of pixels in the display area, each of the pixels having a pixel electrode, an opposite electrode facing the pixel electrode, and an intermediate layer between the pixel electrode and opposite electrode, a plurality of data lines bypassing the opening in the non-display area, first and second insulating layers, which cover the plurality of data lines, a conductive layer between the first and second insulating layers, and a thin film encapsulation layer covering the pixel array, the thin film encapsulation layer including at least one organic encapsulation layer and at least one inorganic encapsulation layer, and wherein, in the non-display area, a first groove is defined by the first insulating layer, the conductive layer, and the second insulating layer.

First claim

The invention claimed is:

1. A display device comprising:
a substrate defining an opening and comprising a display area and a non-display area between the opening and the display area;
a pixel array comprising a plurality of pixels in the display area, each of the plurality of pixels including a pixel electrode, an opposite electrode facing the pixel electrode, and an intermediate layer between the pixel electrode and the opposite electrode;
a plurality of data lines bypassing the opening in the non-display area;
a first insulating layer and a second insulating layer, which cover the plurality of data lines;
a conductive layer between the first insulating layer and the second insulating layer; and
a thin film encapsulation layer covering the pixel array, the thin film encapsulation layer including at least one organic encapsulation layer and at least one inorganic encapsulation layer,
wherein, in the non-display area, a first groove is defined by the first insulating layer, the conductive layer, and the second insulating layer,
wherein, in a cross-sectional view, top, bottom and end surfaces of the conductive layer extend further toward a central axis of the first groove relative to adjacent surfaces of the first insulating layer and the second insulating layer defining the first groove; and
wherein at least one sublayer of the intermediate layer extends toward the opening and comprises a first portion and a second portion which are separated from each other, the first portion being around the first groove and the second portion being in the first groove.

2. The display device of claim 1 , wherein the first groove overlaps the plurality of data lines.

3. The display device of claim 1 , wherein a width of the first groove at the conductive layer is less than a width of the first groove at the first insulating layer.

4. The display device of claim 1 , wherein the opposite electrode extends toward the opening and comprises a first portion and a second portion which are separated from each other, the first portion being around the first groove and the second portion being in the first groove.

5. The display device of claim 1 , wherein a portion of the at least one organic encapsulation layer is in the first groove.

6. The display device of claim 1 , wherein the at least one inorganic encapsulation layer entirely covers an inner surface of the first groove.

7. The display device of claim 1 , wherein the first groove surrounds the opening.

8. The display device of claim 1 , further comprising:
a multi-insulating layer arranged on the substrate and under the first insulating layer; and
a second groove defined by the multi-insulating layer and the substrate.

9. The display device of claim 8 , wherein the second groove is between the opening and the first groove, and surrounds the opening.

10. The display device of claim 8 , wherein the at least one organic encapsulation layer extends toward the opening and is disconnected around the second groove.

11. The display device of claim 1 , wherein the second insulating layer covers an edge of the pixel electrode.

12. The display device of claim 1 , wherein the first groove has an anchor shape in the cross-sectional view.

13. A display device comprising:
a substrate defining an opening;
a pixel array comprising a plurality of pixels on the substrate and surrounding the opening, each of the plurality of pixels comprising a display element comprising a pixel electrode, an intermediate layer on the pixel electrode, and an opposite electrode on the intermediate layer;
a plurality of data lines between the opening and the pixel array, the plurality of data lines bypassing the opening along an edge of the opening;
a multi-layer on the plurality of data lines, the multi-layer defining a first groove;
a multi-insulating layer between the substrate and the multi-layer, the multi-insulating layer defining a second groove extending through the multi-insulating layer and through a portion of the substrate; and
wherein at least one sublayer of the intermediate layer comprises a first portion and a second portion which are separated from each other, the first portion being around the first groove and the second portion being in the first groove.

14. The display device of claim 13 , wherein the opposite electrode comprises a first portion and a second portion which are separated from each other, the first portion being around the first groove and the second portion being in the first groove.

15. The display device of claim 13 , wherein the multi-layer comprises:
a first layer defining a first open area;
a second layer under the first layer, the second layer defining a second open area; and
a third layer on the first layer, the third layer defining a third open area,
wherein a width of the first open area is less than a width of the second open area.

16. The display device of claim 15 , wherein the first layer comprises a same material as the pixel electrode, and
the second layer and the third layer comprise an insulating material.

17. The display device of claim 14 , further comprising a thin film encapsulation layer covering the pixel array, the thin film encapsulation layer comprising at least one organic encapsulation layer and at least one inorganic encapsulation layer.

18. The display device of claim 17 , wherein a portion of the at least one organic encapsulation layer is in the first groove.

19. The display device of claim 17 , wherein the at least one organic encapsulation layer extends toward the opening and is disconnected in an area between the opening and the first groove.

20. The display device of claim 13 , wherein the second groove is between the opening and the first groove and surrounds the opening.

Assignees

• Samsung Display Co Ltd

Inventors

• Sung Wooyong
• Kim Sooyoun
• Kim Seunghun
• Seo Junghan
• Lee Hyoungsub
• Chang Moonwon
• Chae Seunggun
• Choi Wonwoo

Classifications

• H10K59/124 Primary

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K77/00

  Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80 · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title