Display apparatus

Patent metadata

Field	Value
Publication number	US-10658452-B2
Application number	US-201916363145-A
Country	US
Kind code	B2
Filing date	Mar 25, 2019
Priority date	Apr 6, 2018
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A display apparatus includes a substrate including a display area and a peripheral area disposed outside of the display area, a plurality of wiring lines disposed in the peripheral area, and an interlayer insulating layer covering the plurality of wiring lines. The interlayer insulating layer includes an upper surface having a first concave-convex surface corresponding to the plurality of wiring lines. The display apparatus further includes a first conductive layer disposed on the interlayer insulating layer and including a second upper surface having a second concave-convex surface corresponding to the first concave-convex surface, a planarization layer disposed on the first conductive layer and having a flat upper surface, a second conductive layer disposed on the planarization layer and having a flat upper surface, and a polarization plate disposed on the second conductive layer.

First claim

What is claimed is:

1. A display apparatus, comprising:
a substrate comprising a display area and a peripheral area disposed outside of the display area;
a plurality of wiring lines disposed in the peripheral area;
an interlayer insulating layer covering the plurality of wiring lines, wherein the interlayer insulating layer comprises an upper surface having a first concave-convex surface corresponding to the plurality of wiring lines;
a first conductive layer disposed on the interlayer insulating layer and comprising a second upper surface having a second concave-convex surface corresponding to the first concave-convex surface;
a planarization layer disposed on the first conductive layer and having a flat upper surface;
a second conductive layer disposed on the planarization layer and having a flat upper surface; and
a polarization plate disposed on the second conductive layer.

2. The display apparatus of claim 1 , wherein the plurality of wiring lines comprises a plurality of first wiring lines and a plurality of second wiring lines.

3. The display apparatus of claim 2 , wherein the plurality of first wiring lines and the plurality of second wiring lines are alternately disposed.

4. The display apparatus of claim 2 , further comprising:
a first gate insulating layer disposed below the plurality of first wiring lines; and
a second gate insulating layer disposed below the interlayer insulating layer and covering the plurality of first wiring lines,
wherein the plurality of second wiring lines is disposed on the second gate insulating layer and corresponds to spaces between the plurality of first wiring lines.

5. The display apparatus of claim 1 , wherein the second conductive layer comprises a through hole disposed above the plurality of wiring lines.

6. The display apparatus of claim 5 , further comprising:
an additional insulating layer filling the through hole.

7. The display apparatus of claim 6 , wherein the additional insulating layer is disposed between the second conductive layer and the polarization plate.

8. The display apparatus of claim 6 , wherein the additional insulating layer exposes at least a portion of the upper surface of the second conductive layer.

9. The display apparatus of claim 8 , further comprising:
a light-emitting device disposed in the display area and comprising a pixel electrode, an intermediate layer comprising an emission layer, and an opposite electrode, wherein the pixel electrode, the intermediate layer, and the opposite electrode are sequentially stacked,
wherein the opposite electrode extends to the peripheral area and contacts the upper surface of the second conductive layer.

10. The display apparatus of claim 9 , wherein the second conductive layer is electrically connected to the first conductive layer.

11. The display apparatus of claim 1 , wherein the second conductive layer comprises a first portion and a second portion spaced apart from each other.

12. The display apparatus of claim 11 , wherein a space between the first portion and the second portion is aligned with one of the plurality of wiring lines.

13. The display apparatus of claim 11 , further comprising:
an additional insulating layer filling a space between the first portion and the second portion.

14. The display apparatus of claim 13 , wherein the additional insulating layer is disposed between the second conductive layer and the polarization plate.

15. The display apparatus of claim 13 , wherein the additional insulating layer exposes at least a portion of an upper surface of the first portion.

16. The display apparatus of claim 15 , further comprising:
a light-emitting device disposed in the display area and comprising a pixel electrode, an intermediate layer comprising an emission layer, and an opposite electrode, wherein the pixel electrode, the intermediate layer, and the opposite electrode are sequentially stacked,
wherein the opposite electrode extends to the peripheral area and contacts the upper surface of the first portion.

17. The display apparatus of claim 16 , wherein the first portion is electrically connected to the first conductive layer.

18. The display apparatus of claim 16 , wherein the second portion is electrically connected to the pixel electrode.

19. The display apparatus of claim 1 , wherein the second conductive layer comprises a plurality of interconnection lines.

20. The display apparatus of claim 19 , further comprising:
an additional insulating layer filling spaces between the plurality of interconnection lines.

21. The display apparatus of claim 20 , wherein the additional insulating layer is disposed between the second conductive layer and the polarization plate.

22. The display apparatus of claim 19 , further comprising:
a driving circuit disposed in the peripheral area, wherein the driving circuit generates an electrical signal to be applied to a plurality of display devices disposed in the display area,
wherein the plurality of interconnection lines is electrically connected to the driving circuit.

23. The display apparatus of claim 19 , further comprising:
an additional insulating layer disposed between the second conductive layer and the polarization plate and having a flat upper surface; and
a third conductive layer disposed between the additional insulating layer and the polarization plate and having a flat upper surface.

24. The display apparatus of claim 23 , wherein the third conductive layer comprises a plurality of additional wiring lines, and a plurality of spaces disposed between the plurality of additional wiring lines is disposed above the plurality of interconnection lines.

25. The display apparatus of claim 23 , wherein the third conductive layer comprises a first portion and a second portion spaced apart from each other.

26. The display apparatus of claim 25 , wherein a space between the first portion and the second portion is disposed above the plurality of interconnection lines.

27. The display apparatus of claim 25 , further comprising:
a light-emitting device disposed in the display area and comprising a pixel electrode, an intermediate layer comprising an emission layer, and an opposite electrode, wherein the pixel electrode, the intermediate layer, and the opposite electrode are sequentially stacked,
wherein the opposite electrode extends to the peripheral area and contacts an upper surface of the first portion.

28. The display apparatus of claim 27 , wherein the first portion is electrically connected to the first conductive layer.

29. The display apparatus of claim 27 , wherein the second portion is electrically connected to the pixel electrode.

30. The display apparatus of claim 1 , further comprising:
a light-emitting device disposed in the display area and comprising a pixel electrode, an intermediate layer comprising an emission layer, and an opposite electrode, wherein the pixel electrode, the intermediate layer, and the opposite electrode are sequentially stacked,
wherein the second conductive layer is disposed on a same layer as the pixel electrode.

31. The display apparatus of claim 1 , further comprising:
a light-emitting device disposed in the display area and comprising a pixel electrode, an intermediate layer comprising an emission layer, and an opposite electrode, wherein the pix

Assignees

• Samsung Display Co Ltd

Inventors

• CHOI Chulhyun
• Lhee Zail
• Lee Keunsoo
• Chae Kyungchan
• Kim Kwangmin
• Kwak Wonkyu
• Kim Kiwook
• Kim Yangwan
• Kim Hyunjoon
• Na Jisu
• Moon Joongsoo

Classifications

• H01L27/3276 Primary

  Electricity · mapped topic

• H01L51/5293

  Electricity · mapped topic

• H01L27/3248

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic

• H10K59/8793

  Arrangements for polarized light emission (H10K59/8791 takes precedence) · CPC title