Encapsulation method of display panel, display panel, and display device
US-2021359253-A1 · Nov 18, 2021 · US
Organic light emitting display apparatus
US11588133B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11588133-B2 |
| Application number | US-202016905285-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 18, 2020 |
| Priority date | Dec 6, 2019 |
| Publication date | Feb 21, 2023 |
| Grant date | Feb 21, 2023 |
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Abstract
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An organic light-emitting display apparatus includes: a pixel electrode, an intermediate layer on the pixel electrode and including an emission layer, an opposite electrode on the pixel electrode such that the intermediate layer is therebetween, an inorganic encapsulation layer on the opposite electrode, an organic encapsulation layer on the inorganic encapsulation layer, and a protection layer on the organic encapsulation layer and including a first protection layer including silicon nitride and a second protection layer including silicon oxynitride.
First claim
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What is claimed is: 1. An organic light-emitting display apparatus comprising: a pixel electrode; an intermediate layer on the pixel electrode, the intermediate layer comprising an emission layer; an opposite electrode on the pixel electrode such that the intermediate layer is therebetween; an inorganic encapsulation layer on the opposite electrode; an organic encapsulation layer on the inorganic encapsulation layer; a protection layer on the organic encapsulation layer, the protection layer comprising: a first protection layer on the organic encapsulation layer, comprising silicon nitride, and having a set refractive index; and a second protection layer on the first protection layer, comprising silicon oxynitride, and having a set refractive index; and another protection layer on the second protection layer, comprising silicon nitride, and having a set refractive index, wherein the set refractive index of the second protection layer is 1.62 or more, wherein the protection layer comprises a plurality of pairs of the first protection layer and the second protection layer, wherein, in each of the plurality of pairs of the first protection layer and the second protection layer, the first protection layer is closer to the organic encapsulation layer than the second protection layer is to the organic encapsulation layer, and wherein the another protection layer is the first protection layer of one of the plurality of pairs. 2. The organic light-emitting display apparatus of claim 1 , wherein the first protection layer of any one pair of the plurality of pairs in the protection layer disposed on another pair of the plurality of pairs in the protection layer is on the second protection layer of the another pair below the one pair. 3. The organic light-emitting display apparatus of claim 1 , wherein the protection layer comprises five or more and seven or less pairs of the first protection layer and the second protection layer. 4. The organic light-emitting display apparatus of claim 1 , further comprising an additional protection layer on the protection layer, the additional protection layer comprising silicon nitride. 5. The organic light-emitting display apparatus of claim 1 , wherein the set refractive index of the first protection layer is greater than the set refractive index of the second protection layer. 6. The organic light-emitting display apparatus of claim 5 , wherein the set refractive index of the first protection layer is 1.79 or more and 2.10 or less, and the set refractive index of the second protection layer is 1.70 or less. 7. The organic light-emitting display apparatus of claim 5 , wherein a difference between the set refractive index of the first protection layer and the set refractive index of the second protection layer is 0.09 or more and 0.48 or less. 8. The organic light-emitting display apparatus of claim 5 , wherein a thickness of the first protection layer is 350 Å or more and 500 Å or less, and a thickness of the second protection layer is 600 Å or more and 700 Å or less.
Assignees
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Classifications
comprising refractive means, e.g. lenses · CPC title
- H10K59/8731Primary
multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title
Encapsulations · CPC title
Thickness · CPC title
Constructional details relating to the organic devices covered by this subclass · CPC title
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- What does patent US11588133B2 cover?
- An organic light-emitting display apparatus includes: a pixel electrode, an intermediate layer on the pixel electrode and including an emission layer, an opposite electrode on the pixel electrode such that the intermediate layer is therebetween, an inorganic encapsulation layer on the opposite electrode, an organic encapsulation layer on the inorganic encapsulation layer, and a protection layer…
- Who is the assignee on this patent?
- Samsung Display Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H10K59/8731. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 21 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).