Display device

Patent metadata

Field	Value
Publication number	US-2022013622-A1
Application number	US-202117237050-A
Country	US
Kind code	A1
Filing date	Apr 22, 2021
Priority date	Jul 10, 2020
Publication date	Jan 13, 2022
Grant date	—

Abstract

A display device includes: an array substrate including a pixel array in a display area; an encapsulation substrate facing the array substrate; and a sealing member in a sealing area and between the array substrate and the encapsulation substrate. The array substrate includes: an organic insulation layer in a peripheral area between the display area and the sealing area; a power bus line in the peripheral area and including a first wiring layer and a second wiring layer that overlap the organic insulation layer; and a compensation pattern disposed under the sealing member, extending along an outer edge of the sealing member, and including a first compensation layer and a second compensation layer. The first compensation layer is connected to the first wiring layer, and the second compensation layer is on the first compensation layer and connected to the second wiring layer.

First claim

What is claimed is:

1 . A display device comprising:
an array substrate comprising a pixel array disposed in a display area; an encapsulation substrate disposed to face the array substrate; and a sealing member disposed in a sealing area, the sealing member disposed between the array substrate and the encapsulation substrate to combine the array substrate with the encapsulation substrate, wherein the array substrate comprises: an organic insulation layer disposed in a first peripheral area between the display area and the sealing area; a power bus line disposed in the first peripheral area, the power bus line comprising a first wiring layer and a second wiring layer disposed on the first wiring layer, each of the first wiring layer and the second wiring layer overlapping the organic insulation layer; and a compensation pattern disposed under the sealing member and extending along an outer edge of the sealing member, the compensation pattern comprising a first compensation layer and a second compensation layer, wherein: the first compensation layer is connected to the first wiring layer, and the second compensation layer is disposed on the first compensation layer and connected to the second wiring layer.

2 . The display device of claim 1 , wherein each of the first compensation layer and the second compensation layer has a multi-layered structure comprising an aluminum layer.

3 . The display device of claim 1 , wherein a thickness of the compensation pattern is equal to or more than about 10,000 Å.

4 . The display device of claim 1 , wherein a distance between an outer edge of the compensation pattern and the outer edge of the sealing member is equal to or less than about 200 μm.

5 . The display device of claim 1 , wherein the compensation pattern further comprises a third compensation layer disposed under the first compensation layer.

6 . The display device of claim 5 , wherein the array substrate further comprises an inorganic insulation layer disposed between the first compensation layer and the third compensation layer.

7 . The display device of claim 6 , wherein the first compensation layer is electrically connected to the third compensation layer by passing through the inorganic insulation layer.

8 . The display device of claim 5 , wherein the third compensation layer comprises molybdenum.

9 . The display device of claim 5 , wherein the third compensation layer extends along the outer edge of the sealing member.

10 . The display device of claim 5 , wherein the compensation pattern further comprises a fourth compensation layer disposed under the third compensation layer.

11 . The display device of claim 10 , wherein the fourth compensation layer comprises a same material as the third compensation layer.

12 . The display device of claim 1 , wherein the array substrate further comprises an inorganic intermediate layer disposed between the first compensation layer and the second compensation layer and comprising an inorganic material.

13 . The display device of claim 1 , wherein the pixel array comprises an organic light-emitting diode.

14 . The display device of claim 13 , wherein the power bus line is configured to supply a power voltage to the organic light-emitting diode.

15 . A display device comprising:
an array substrate comprising a pixel array disposed in a display area; an encapsulation substrate disposed to face the array substrate; and a sealing member disposed in a sealing area, the sealing member disposed between the array substrate and the encapsulation substrate to combine the array substrate with the encapsulation substrate, wherein the array substrate comprises: a power bus line disposed in a first peripheral area between the display area and the sealing area; an upper compensation layer disposed under the sealing member and extending along an outer edge of the sealing member, wherein the upper compensation layer and at least a portion of the power bus line are disposed on a same layer; a lower compensation layer disposed under the upper compensation layer and extending along the upper compensation layer and comprising a different material from the upper compensation layer; and an inorganic insulation layer disposed between the upper compensation layer and the lower compensation layer.

16 . The display device of claim 15 , wherein the upper compensation layer comprises aluminum.

17 . The display device of claim 15 , wherein the lower compensation layer comprises molybdenum.

18 . The display device of claim 15 , wherein the upper compensation layer comprises a first upper compensation layer and a second upper compensation layer.

19 . The display device of claim 18 , wherein the power bus line comprises a first wiring layer connected to the first upper compensation layer and a second wiring layer connected to the second upper compensation layer.

20 . The display device of claim 15 , wherein the lower compensation layer comprises a first lower compensation layer and a second lower compensation layer disposed under the first lower compensation layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Junho
• Kim Min-Chang
• Yang Eunkyung

Classifications

• H10K59/873

  Encapsulations · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K50/8426 Primary

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title