Organic light-emitting display device

Patent metadata

Field	Value
Publication number	US-2019341439-A1
Application number	US-201916377255-A
Country	US
Kind code	A1
Filing date	Apr 8, 2019
Priority date	May 4, 2018
Publication date	Nov 7, 2019
Grant date	—

Abstract

An organic light-emitting display device includes a base substrate, a pixel array, a first power voltage wiring and a second power voltage wiring. The base substrate includes a pixel area and a peripheral area that surrounds the pixel area. The pixel array is disposed in the pixel area. The first power voltage wiring is disposed in the peripheral area and includes a first lower power voltage line and a first upper power voltage line. The first upper power voltage line is disposed on the first lower power voltage line and contacts the first lower power voltage line. The second power voltage wiring is disposed in the peripheral area and includes a second lower power voltage line and a second upper power voltage line. The second upper power voltage line is disposed on the second lower power voltage line and contacts the second lower power voltage line. The first upper power voltage line overlaps the second lower power voltage line in a plan view.

First claim

What is claimed is:

1 . An organic light-emitting display device comprising:
a base substrate including a pixel area and a peripheral area that surrounds the pixel area; a pixel array disposed in the pixel area; a first power voltage wiring disposed in the peripheral area and including a first lower power voltage line and a first upper power voltage line, wherein the first upper power voltage line is disposed on the first lower power voltage line and contacts the first lower power voltage line; and a second power voltage wiring disposed in the peripheral area and including a second lower power voltage line and a second upper power voltage line, wherein the second upper power voltage line is disposed on the second lower power voltage line and contacts the second lower power voltage line, wherein the first upper power voltage line overlaps the second lower power voltage line in a plan view.

2 . The organic light-emitting display device of claim 1 , wherein the second power voltage wiring is disposed between the first power voltage wiring and the pixel area.

3 . The organic light-emitting display device of claim 2 , wherein the first lower power voltage line is spaced apart from the second lower power voltage line, and the first upper power voltage line is spaced apart from the second upper power voltage line.

4 . The organic light-emitting display device of claim 3 , wherein a width of the first upper power voltage line is greater than a width of the first lower power voltage line, and a width of the second upper power voltage line is smaller than a width of the second lower power voltage line.

5 . The organic light-emitting display device of claim 3 , wherein the first upper power voltage line covers a gap between the first lower power voltage line and the second lower power voltage line in a plan view.

6 . The organic light-emitting display device of claim 1 , wherein the pixel array includes an organic light-emitting diode that includes a first electrode and a second electrode, wherein the second electrode of the organic light-emitting diode extends from the pixel area to the peripheral area and contacts the first upper power voltage line.

7 . The organic light-emitting display device of claim 1 , further comprising a fan-out wiring overlapping the first power voltage wiring and the second power voltage wiring.

8 . The organic light-emitting display device of claim 7 , wherein the fan-out wiring is disposed under the first power voltage wiring and the second power voltage wiring.

9 . The organic light-emitting display device of claim 8 , wherein the fan-out wiring includes a plurality of lines spaced apart from each other, wherein at least a portion of the fan-out wiring overlaps a gap between the first lower power voltage line and the second lower power voltage line in a plan view.

10 . The organic light-emitting display device of claim 7 , further comprising a touch screen structure disposed in the pixel area and the peripheral area to overlap the fan-out wiring.

11 . The organic light-emitting display device of claim 1 , wherein the fan-out wiring is configured to transfer a data signal to the pixel array.

12 . The organic light-emitting display device of claim 1 , further comprising a first via insulation layer partially covering the first lower power voltage line and the second lower power voltage line.

13 . The organic light-emitting display device of claim 12 , wherein the first via insulation layer includes one or more contact holes, and the first upper power voltage line is connected to the first lower power voltage line through the one or more contact holes of the first via insulation layer.

14 . The organic light-emitting display device of claim 12 , wherein the first via insulation layer includes one or more contact holes, and the second upper power voltage line is connected to the second lower power voltage line through one or more contact holes of the first via insulation layer.

15 . The organic light-emitting display device of claim 1 , further comprising a thin film encapsulation layer covering the pixel array and extending to the peripheral area.

16 . The organic light-emitting display device of claim 15 , wherein the thin film encapsulation layer includes at least one organic layer and at least one inorganic layer.

17 . The organic light-emitting display device of claim 16 , further comprising at least one dam structure disposed in the peripheral area.

18 . The organic light-emitting display device of claim 17 , further comprising at least one valley structure disposed between the at least one dam structure and the pixel area.

19 . The organic light-emitting display device of claim 18 , wherein the pixel array includes an organic light-emitting diode that includes a first electrode and a second electrode, wherein the second electrode of the organic light-emitting diode is disposed in the pixel area and the peripheral area, extends along a side surface and an upper surface of the at least one valley structure in the peripheral area, and contacts the first upper power voltage line.

20 . The organic light-emitting display device of claim 18 , wherein the at least one valley structure is disposed on the first upper power voltage line and is connected to a first via insulation layer that is disposed under the first upper power voltage line through a contact hole of the first upper power voltage line.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Yoonsun
• Lee Seong Ryong
• Kim Hyun Chul
• Lee Seongjun
• Jung Eunae

Classifications

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/3291

  in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements · CPC title

• G09G2300/0439

  Pixel structures · CPC title

• H01L51/5256

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic