Display device

Patent metadata

Field	Value
Publication number	US-12133452-B2
Application number	US-202217653084-A
Country	US
Kind code	B2
Filing date	Mar 1, 2022
Priority date	Feb 12, 2016
Publication date	Oct 29, 2024
Grant date	Oct 29, 2024

Abstract

A display device is disclosed. The display device includes a substrate including a first area, a second area, and a first bending area located between the first and second areas. The first bending area is bent about a first bending axis extending in a first direction. The display device also includes a first inorganic insulating layer arranged over the substrate and having a first opening or a first groove at least in the first bending area, an organic material layer filling at least a part of the first opening or the first groove, and a first conductive layer extending from the first area to the second area across the first bending area and located over the organic material layer.

First claim

What is claimed is:

1. A display device comprising:
a substrate;
a first inorganic insulating layer over the substrate and having a first opening or groove;
a first conductive layer on the first inorganic insulating layer;
a second inorganic insulating layer having contact holes and a second opening or groove on the first conductive layer;
a first organic material layer over the first opening or groove and the second opening or groove, the first organic material layer is continuously disposed within the first opening or groove from directly contacting a first sidewall of the first inorganic insulating layer to directly contacting a second sidewall of the first inorganic insulating layer and is continuously disposed within the second opening or groove from directly contacting a first sidewall of the second inorganic insulating layer to directly contacting a second sidewall of the second inorganic insulating laver;
a second conductive layer on the first organic material layer; and
a second organic material layer on the second conductive layer,
wherein the second conductive layer extends over the first opening or groove and the second opening or groove and electrically contacts to the first conductive layer through the contact holes.

2. The display device of claim 1 , wherein the display device is bent at the first opening or groove.

3. The display device of claim 2 , further comprising:
a third organic material layer on the second organic material layer over the first opening or groove.

4. The display device of claim 3 , further comprising:
a thin film transistor arranged over the substrate,
wherein the thin film transistor comprises a semiconductor layer, a source electrode, a drain electrode, and a gate electrode, and
wherein the first inorganic insulating layer is arranged between the substrate and the gate electrode.

5. The display device of claim 4 , wherein the second inorganic insulating layer is arranged over the gate electrode.

6. The display device of claim 4 , further comprising:
an encapsulation layer comprising an inorganic encapsulation layer and an organic encapsulation layer, wherein the encapsulation layer covers the thin film transistor.

7. The display device of claim 6 , further comprising:
a touch electrode on the encapsulation layer.

8. The display device of claim 1 , wherein a width of the second opening or groove is wider than a width of the first opening or groove.

9. The display device of claim 8 , further comprising:
a third organic material layer on the second organic material layer over the first opening or groove.

10. The display device of claim 9 , further comprising:
a thin film transistor arranged over the substrate,
wherein the thin film transistor comprises a semiconductor layer, a source electrode, a drain electrode, and a gate electrode, and
wherein the first inorganic insulating layer is arranged between the substrate and the gate electrode.

11. The display device of claim 10 , wherein the second inorganic insulating layer is arranged over the gate electrode.

12. The display device of claim 11 , further comprising:
an encapsulation layer comprising an inorganic encapsulation layer and an organic encapsulation layer, wherein the encapsulation layer covers the thin film transistor.

13. The display device of claim 12 , further comprising:
a touch electrode on the encapsulation layer.

14. A display device comprising:
a substrate;
a first inorganic insulating layer over the substrate and having a first opening or groove;
a first conductive layer on the first inorganic insulating layer;
a second inorganic insulating layer having contact holes and a second opening or groove on the first conductive layer, wherein a width of the second opening or groove is wider than a width of the first opening or groove;
a first organic material layer continuously disposed within the first opening or groove from directly contacting a first sidewall of the first inorganic insulating layer to directly contacting a second sidewall of the first inorganic insulating layer and continuously disposed within the second opening or groove from directly contacting a first sidewall of the second inorganic insulating layer to directly contacting a second sidewall of the second inorganic insulating laver; and
a second conductive layer directly on the first organic material layer,
wherein the second conductive layer extends over the first opening or groove and the second opening or groove and electrically contacts to the first conductive layer through the contact holes.

15. The display device of claim 14 , wherein the display device is bent at the first opening or groove.

16. The display device of claim 14 , further comprising:
a second organic material layer on the first organic material layer over the first opening or groove.

17. The display device of claim 14 , further comprising:
a thin film transistor arranged over the substrate,
wherein the thin film transistor comprises a semiconductor layer, a source electrode, a drain electrode, and a gate electrode, and
wherein the first inorganic insulating layer is arranged between the substrate and the gate electrode.

18. The display device of claim 17 , wherein the second inorganic insulating layer is arranged over the gate electrode.

19. The display device of claim 17 , further comprising:
an encapsulation layer comprising an inorganic encapsulation layer and an organic encapsulation layer, wherein the encapsulation layer covers the thin film transistor.

20. The display device of claim 19 , further comprising:
a touch electrode on the encapsulation layer.

21. The display device of claim 14 , further comprising:
a third organic material layer over the first opening or groove and the second opening or groove, wherein the third organic material layer is arranged between the substrate and the second conductive layer.

22. The display device of claim 17 , further comprising:
a third inorganic insulating layer under the semiconductor layer.

23. The display device of claim 22 , wherein the third inorganic insulating layer has a third opening or groove exposing a portion of the substrate.

24. The display device of claim 22 , wherein the third opening or groove has a same shape as the first opening or groove.

25. The display device of claim 24 , wherein the third organic material layer directly contact the portion of the substrate and the second conductive layer.

26. The display device of claim 25 , further comprising:
an encapsulation layer comprising an inorganic encapsulation layer and an organic encapsulation layer, wherein the encapsulation layer covers the thin film transistor.

27. The display device of claim 26 , further comprising:
a touch electrode on the encapsulation layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Yoonsun
• Choi Wonsuk
• Kim Cheolsu
• Lee Sangjo

Classifications

• H10K59/131 Primary

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

• H10K59/8731

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

• H10K77/111 Primary

  Flexible substrates · CPC title

• H10K59/124 Primary

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

• H10K2102/311

  Flexible OLED · CPC title