IP Library Granted Patent US 12,279,495
Granted Patent B2
US 12,279,495 · App. 17/895,662 · Granted Apr 15, 2025

Display device

Inventors: Jong Ho Hong (Yongin-si, KR); Jun Hyeong Park (Yongin-si, KR); Jae Min Shin (Yongin-si, KR); Hye Jin Joo (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H10K59/131H10K50/81H10K50/844H10K59/1213H10K59/122H10K59/124H10K59/352H10K59/353H01L27/124H01L27/1248H10K2102/311
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Quick Facts
Patent No.
US 12,279,495
App. No.
17/895,662
Granted
Apr 15, 2025
Kind
B2
Abstract

A display device includes: a substrate on which a plurality of islands and a plurality of bridges connecting the plurality of islands to each other are defined; a plurality of pixels disposed in each of the plurality of islands; and a wire disposed in each of the plurality of bridges and connected to the plurality of pixels, where the plurality of islands and the plurality of bridges are defined based on cutout portions of the substrate, and a vertex of a cutout portion between one of the plurality of islands and a bridge connected to the one of the plurality of islands is an intersection of a straight line and a curved line.

Claims (45)

1. A display device comprising:

a substrate including a plurality of islands and a plurality of bridges connecting the plurality of islands;

a plurality of pixels disposed on the plurality of islands;

wires disposed on the plurality of bridges and connected to the plurality of pixels for supplying a first power and a second power;

a plurality of inorganic insulating layers stacked on the plurality of islands;

a first organic insulating layer covering a part of the plurality of islands and the plurality of bridges, and

an encapsulation layer disposed on the substrate,

wherein the first organic insulating layer includes an opening, and

wherein the encapsulation layer contacts one of the plurality of inorganic insulating layers through the opening and is disposed over both opposing sides of the opening of the first organic layer, and

wherein a portion of the encapsulation layer overlaps the plurality of bridges, and the portion of the encapsulation layer covers the wires.

2. The display device of claim 1 , wherein each of the plurality of pixels includes a light emitting element and emits light corresponding to a current flowing from the first power via the light emitting element to the second power.

3. The display device of claim 1 , wherein the wires are disposed on each of the plurality of bridges.

4. The display device of claim 1 , wherein the wires are provided on the plurality of bridges side by side in a plan view.

5. The display device of claim 1 , further comprising a second organic insulating layer disposed on the plurality of bridges,

wherein the wires are disposed between the first organic insulating layer and the second organic insulating layer.

6. The display device of claim 5 , wherein a most part of the inorganic insulating layers are disposed on the plurality of islands, and

wherein the second organic insulating layer covers the plurality of bridges exposed by the inorganic insulating layers.

7. The display device of claim 6 , wherein the second organic insulating layer covers an edge of at least one of remaining inorganic insulating layers except the one of the plurality of inorganic insulating layers.

8. The display device of claim 5 , wherein, in a plan view, the second organic insulating layer is spaced apart from the opening of the first organic insulating layer.

9. The display device of claim 5 , wherein, in a plan view, the second organic insulating layer is spaced apart from the plurality of islands.

10. The display device of claim 1 , wherein the first organic insulating layer includes a plurality of organic insulating layers disposed on the plurality of bridges,

wherein at least one of the wires is disposed on each of the organic insulating layers.

11. The display device of claim 1 , wherein the wires extend to the plurality of islands, and

wherein the one of the plurality of inorganic insulating layers is disposed on the wires.

12. The display device of claim 1 , wherein the opening is defined by opposing facing edges of the first organic insulating layer.

13. The display device of claim 1 , wherein each of the plurality of pixels includes a light emitting element, and the light emitting element comprises:

a first pixel electrode on the first organic insulating layer;

an emission layer on the first pixel electrode; and

a second pixel electrode on the emission layer, and

wherein the second pixel electrode is electrically connected to one of the wires.

14. The display device of claim 13 , further comprising:

a pixel definition layer which defines a light emitting region of each of the plurality of pixels; and

a spacer on the pixel definition layer,

wherein the pixel definition layer is disposed on the first organic insulating layer, and

wherein the second pixel electrode is disposed on the pixel definition layer and the spacer.

15. The display device of claim 14 , wherein each of the plurality of islands is divided into a first area, an edge area surrounding the first area, a second area located outside of the edge area,

wherein the opening of the first organic insulating layer overlaps the edge area, and

wherein the spacer is located in the second area.

16. The display device of claim 13 , further comprising:

a contact electrode disposed on the first organic insulating layer and spaced apart from the first pixel electrode,

wherein the contact electrode contacts the one of the wires through a contact hole penetrating the first organic insulating layer and the one of the plurality of inorganic insulating layers, and

wherein the second pixel electrode directly contacts the contact electrode.

17. The display device of claim 16 , wherein each of the plurality of islands is divided into a first area, an edge area surrounding the first area, a second area located outside of the edge area,

wherein the opening of the first organic insulating layer overlaps the edge area, and

wherein the contact electrode is located outside of the edge area.

Priority Claims (1)
KR 10-2018-0034642 · Mar 26, 2018 · national
Continuity (3)
Continuation 16793348 · Feb 18, 2020
Continuation 16149513 · Oct 2, 2018
Related Publication 20220416002A1 · Dec 29, 2022
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