Display apparatus

Patent metadata

Field	Value
Publication number	US-2025248254-A1
Application number	US-202519181637-A
Country	US
Kind code	A1
Filing date	Apr 17, 2025
Priority date	Jul 5, 2019
Publication date	Jul 31, 2025
Grant date	—

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 element disposed on the island and comprising a pixel electrode, a light emitting layer, and a common electrode;; a common voltage power line disposed on the island and on a first connection part of the plurality of connection parts; a contact portion connecting the common voltage power line and the common electrode; a contact electrode disposed at the contact portion and arranged between the common voltage power line and the common electrode; wherein the common electrode is continuously disposed on the contact portion, 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 , wherein the contact portion disposed on the first connection part.

3 . The display apparatus of claim 1 , further comprising a first insulating layer disposed on the common voltage power line, wherein the contact portion passed through the first insulating layer.

4 . 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.

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 element.

6 . The display apparatus of claim 5 , wherein the 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 element, 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 . An electronic apparatus including a display apparatus,
the 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 element disposed on the island and comprising a pixel electrode, a light emitting layer, and a common electrode;; a common voltage power line disposed on the island and on a first connection part of the plurality of connection parts; a contact portion connecting the common voltage power line and the common electrode; a contact electrode disposed at the contact portion and arranged between the common voltage power line and the common electrode; wherein the common electrode is continuously disposed on the contact portion, wherein the contact electrode is a separate layer from that of the common electrode and the common voltage power line.

12 . The electronic apparatus of claim 11 , wherein the contact portion disposed on the first connection part.

13 . The electronic apparatus of claim 11 , further comprising a first insulating layer disposed on the common voltage power line, wherein the contact portion passed through the first insulating layer.

14 . The electronic apparatus of claim 11 , 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.

15 . The electronic apparatus of claim 11 , 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 element.

16 . The electronic apparatus of claim 15 , wherein the contact portion is disposed outside the inorganic contact area.

17 . The electronic apparatus of claim 15 , 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 element, and the first inorganic encapsulation layer and the second inorganic encapsulation layer contact each other in the inorganic contact area.

18 . The electronic apparatus of claim 17 , 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.

19 . The electronic apparatus of claim 17 , 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.

20 . The electronic apparatus of claim 11 , 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.

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