Display apparatus

Patent metadata

Field	Value
Publication number	US-12349560-B2
Application number	US-202016914575-A
Country	US
Kind code	B2
Filing date	Jun 29, 2020
Priority date	Jul 5, 2019
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

Provided is a display apparatus including a substrate having an island and a plurality of connection parts extending in different directions from an end of the island and connected to different islands; a display region disposed on the island and including a display element connected to a common electrode; a common voltage power line disposed on the island and on at least one first connection part of the plurality of connection parts extending from the island; and at least one contact portion disposed on the at least one first connection part, wherein the at least contact portion is connected to the common electrode and the common voltage line.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate comprising an island and a plurality of connection parts extending from respective ends of the island and connected to different islands;
a display region disposed on the island and comprising a display element;
a common voltage power line disposed on the island and on at least one first connection part of the plurality of connection parts extending from the island;
a planarization layer disposed on the common voltage power line; and
at least one contact portion (CNT) disposed on the at least one first connection part and passed through the planarization layer,
wherein a contact electrode comprised of a conductive oxide is disposed in the at least one contact portion to be connected to a common electrode of the display element and the common voltage power line, and to be completely covered by the common electrode,
wherein the common electrode is continuously disposed on the at least one contact portion, and the common electrode and the common voltage power line overlap the at least one contact portion, and
wherein the contact electrode is a separate layer from that of the common electrode and the common voltage power line.

2. The display apparatus of claim 1 , further comprising:
a driving voltage power line disposed on at least one of the islands, wherein the driving voltage power line is disposed on a layer different from a layer where the common voltage power line is disposed.

3. The display apparatus of claim 2 , wherein the driving voltage power line is disposed on the at least one first connection part and is arranged to overlap the common voltage power line.

4. The display apparatus of claim 2 , wherein a width of the common voltage power line is greater than a width of the driving voltage power line.

5. The display apparatus of claim 1 , further comprising:
a thin film transistor disposed on the island and connected to the display element; and
an inorganic protection layer disposed between the thin film transistor and the display element, wherein the inorganic protection layer directly contacts the common electrode in an inorganic contact area, and the inorganic contact area is disposed to surround the display region.

6. The display apparatus of claim 5 , wherein the at least one contact portion is disposed outside the inorganic contact area.

7. The display apparatus of claim 5 , further comprising:
an encapsulation layer comprising an organic encapsulation layer, a first inorganic encapsulation layer disposed under the organic encapsulation layer, and a second inorganic encapsulation layer disposed on the organic encapsulation layer, wherein the organic encapsulation layer overlaps the display region, and the first inorganic encapsulation layer and the second inorganic encapsulation layer contact each other in the inorganic contact area.

8. The display apparatus of claim 7 , wherein the first inorganic encapsulation layer and the second inorganic encapsulation layer are disposed on the substrate, and the first inorganic encapsulation layer and the second inorganic encapsulation layer contact each other on the plurality of connection parts.

9. The display apparatus of claim 7 , wherein the substrate comprises a plurality of through holes penetrating the substrate around the island, and the first inorganic encapsulation layer and the second inorganic encapsulation layer are disposed at least partially on a side surface of the plurality of through holes.

10. The display apparatus of claim 1 , further comprising:
at least one inorganic insulating layer disposed under the display element, wherein the at least one inorganic insulating layer comprises an opening area corresponding to at least a part of each of the plurality of connection parts, and the opening area is filled by at least one organic material layer.

11. The display apparatus of claim 10 , wherein the at least one contact portion is disposed on the at least one inorganic insulating layer.

12. The display apparatus of claim 1 , further comprising:
a driving voltage power line disposed on at least one of the island and the plurality of connection parts, wherein the driving voltage power line is disposed on a same layer as a layer where the common voltage power line is disposed.

13. The display apparatus of claim 12 , wherein a width of the common voltage power line is greater than a width of the driving voltage power line.

14. The display apparatus of claim 1 , further comprising:
a driving voltage power line disposed on the island and on at least one second connection part of the plurality of connection parts extending in a direction different from a direction in which the at least one first connection part extends, wherein the common voltage power line crosses the driving voltage power line in the display region.

15. The display apparatus of claim 1 , further comprising:
an upper scan line disposed on at least one second connection part of the plurality of connection parts extending in a direction different from a direction in which the at least one first connection part extends; and a lower scan line disposed on the island, wherein the upper scan line and the lower scan line are disposed in layers different from each other and are connected to each other via a contact hole disposed in the at least one second connection part.

16. The display apparatus of claim 15 , further comprising:
a plurality of data lines disposed on the at least one first connection part, wherein the plurality of data lines and the upper scan lines are disposed on a same layer.

17. A display apparatus comprising:
a substrate comprising a plurality of islands spaced apart from each other, a plurality of connection parts connecting the plurality of islands, and a plurality of through holes penetrating the substrate between the plurality of connection parts;
a plurality of display regions respectively disposed on the plurality of islands, each display region comprising an organic light-emitting diode;
an encapsulation layer hermetically sealing each of the plurality of display regions, wherein one of the connection parts comprises a common voltage power line and a contact portion connected to a common electrode of the organic light-emitting diode of one of the display regions of one of the islands and the common voltage power line; and
a contact electrode disposed in the contact portion between the common electrode and the common voltage power line such that the common electrode completely covers the contact electrode, and the common electrode and the common voltage power line overlap at the at least one contact portion,
wherein the common voltage power line provides a voltage to the common electrode via the at least one contact portion,
wherein the contact electrode comprises a conductive oxide, and
wherein the contact electrode is a separate layer from that of the common electrode and the common voltage power line.

18. The display apparatus of claim 17 , wherein the contact electrode includes a same material as a material of a pixel electrode of the organic light-emitting diode.

19. The display apparatus of claim 17 , further comprising:
a driving voltage power line disposed on the one island and on part of the plurality of connection parts, wherein the driving voltage power line is disposed on a layer different from a layer where the common voltage power line is disposed.

20. The display apparatus of claim 19 , wherein the driving voltage power line is disposed to overlap at least

Assignees

• Samsung Display Co Ltd

Inventors

• Park Junhyeong
• Shin Jaemin
• Kim Sangwoo
• Joo Hyejin

Classifications

• H10K50/844

  Encapsulations · CPC title

• H10K59/8731

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

• H10K2102/00

  Constructional details relating to the organic devices covered by this subclass · CPC title

• H10K59/124

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

• H10K59/353

  characterised by the geometrical arrangement of the RGB subpixels · CPC title