Encapsulation of an organic optoelectronic component
US-2017141354-A1 · May 18, 2017 · US
Silicon oxide sealing layer for electroluminescent device
US10608203B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10608203-B2 |
| Application number | US-201615746005-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 15, 2016 |
| Priority date | Jul 23, 2015 |
| Publication date | Mar 31, 2020 |
| Grant date | Mar 31, 2020 |
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Abstract
Official abstract text for this publication.
An organic EL display device includes a substrate and an organic EL element (electroluminescent element) provided on the substrate. The organic El display device includes a sealing layer that seals the organic EL element. The sealing layer includes silicon oxide films. Moreover, the degree of oxidation of the silicon oxide films is set to 1.2 or more and 1.8 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electroluminescent device comprising: a flexible substrate; an electroluminescent element provided on the flexible substrate; and a sealing layer that seals the electroluminescent element, wherein the sealing layer includes a first silicon oxide film, a first organic film, and a second silicon oxide film that are provided in this order from a side of the flexible substrate, a degree of oxidation of the first silicon oxide film is 1.2 or more and 1.8 or less, the degree of oxidation of the first silicon oxide film is less than a degree of oxidation of the second oxide film, the sealing layer further includes a third organic film and a fifth silicon oxide film that are provided on the second silicon oxide film, and a degree of oxidation of the fifth silicon oxide film is greater than the degree of oxidation of the second silicon oxide film. 2. The electroluminescent device according to claim 1 , wherein the first silicon oxide film has a thickness that is less than a thickness of the second silicon oxide film. 3. The electroluminescent device according to claim 1 , wherein an underlying film is provided between the flexible substrate and the electroluminescent element, the underlying film includes a third silicon oxide film, a second organic film, and a fourth silicon oxide film that are provided in this order from the side of the flexible substrate, and a degree of oxidation of the third silicon oxide film is 1.2 or more and 1.8 or less. 4. The electroluminescent device according to claim 1 , further comprising: a counter substrate located on an opposite side of the electroluminescent element from the flexible substrate; and a frame-shaped sealing material provided between the flexible substrate and the counter substrate to seal the electroluminescent element. 5. The electroluminescent device according to claim 4 , wherein a filler layer is provided between the flexible substrate, the counter substrate, and the sealing material. 6. The electroluminescent device according to claim 1 , wherein an underlying film is provided between the flexible substrate and the electroluminescent element, the underlying film includes a third silicon oxide film, a second organic film, and a fourth silicon oxide film that are provided in this order from the side of the flexible substrate, and a degree of oxidation of the fourth silicon oxide film is less than a degree of oxidation of the third silicon oxide film. 7. The electroluminescent device according to claim 1 , wherein an underlying film is provided between the flexible substrate and the electroluminescent element, the underlying film includes a third silicon oxide film, a second organic film, and a fourth silicon oxide film that are provided in this order from the side of the flexible substrate, and the fourth silicon oxide film has a thickness that is less than a thickness of the third silicon oxide film. 8. An electroluminescent device comprising: a flexible substrate; an electroluminescent element provided on the flexible substrate; and a sealing layer that seals the electroluminescent element, wherein the sealing layer includes a first silicon oxide film, a first organic film, and a second silicon oxide film that are provided in this order from a side of the flexible substrate, a degree of oxidation of the first silicon oxide film is 1.2 or more and 1.8 or less, the first silicon oxide film has a thickness that is less than a thickness of the second silicon oxide film, the sealing layer further includes a third organic film and a fifth silicon oxide film that are provided on the second silicon oxide film, and a degree of oxidation of the fifth silicon oxide film is greater than the degree of oxidation of the second silicon oxide film. 9. The electroluminescent device according to claim 8 , wherein an underlying film is provided between the flexible substrate and the electroluminescent element, the underlying film includes a third silicon oxide film, a second organic film, and a fourth silicon oxide film that are provided in this order from the side of the flexible substrate, and a degree of oxidation of the third silicon oxide film is 1.2 or more and 1.8 or less. 10. The electroluminescent device according to claim 8 , further comprising: a counter substrate located on an opposite side of the electroluminescent element from the flexible substrate; and a frame-shaped sealing material provided between the flexible substrate and the counter substrate to seal the electroluminescent element. 11. The electroluminescent device according to claim 10 , wherein a filler layer is provided between the flexible substrate, the counter substrate, and the sealing material. 12. The electroluminescent device according to claim 8 , wherein an underlying film is provided between the flexible substrate and the electroluminescent element, the underlying film includes a third silicon oxide film, a second organic film, and a fourth silicon oxide film that are provided in this order from the side of the flexible substrate, and a degree of oxidation of the fourth silicon oxide film is less than a degree of oxidation of the third silicon oxide film. 13. The electroluminescent device according to claim 8 , wherein an underlying film is provided between the flexible substrate and the electroluminescent element, the underlying film includes a third silicon oxide film, a second organic film, and a fourth silicon oxide film that are provided in this order from the side of the flexible substrate, and the fourth silicon oxide film has a thickness that is less than a thickness of the third silicon oxide film.
Assignees
Inventors
Classifications
Electricity · mapped topic
- H05B33/04Primary
Sealing arrangements {, e.g. against humidity} · CPC title
Electricity · mapped topic
Electricity · mapped topic
- H01L51/5256Primary
Electricity · mapped topic
Patent family
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10608203B2 cover?
- An organic EL display device includes a substrate and an organic EL element (electroluminescent element) provided on the substrate. The organic El display device includes a sealing layer that seals the organic EL element. The sealing layer includes silicon oxide films. Moreover, the degree of oxidation of the silicon oxide films is set to 1.2 or more and 1.8 or less.
- Who is the assignee on this patent?
- Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification H05B33/04. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 2020 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).