Display device
US-2021257582-A1 · Aug 19, 2021 · US
Display device
US12433133B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12433133-B2 |
| Application number | US-202117565298-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2021 |
| Priority date | Mar 23, 2021 |
| Publication date | Sep 30, 2025 |
| Grant date | Sep 30, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A protection film and a display device are provided. A protection film may include a base layer having a phase difference less than 100 nm, an inorganic layer on at least one of top and bottom surfaces of the base layer, and a surface coating layer on the base layer and including a hard coating material.
First claim
Opening claim text (preview).
What is claimed is: 1. A protection film, comprising: a base layer having a phase difference less than 100 nm; a first inorganic layer on a top surface of the base layer; and a surface coating layer on the base layer and comprising a material having a hardness higher than pencil hardness F, wherein the first inorganic layer is between the base layer and the surface coating layer. 2. The protection film of claim 1 , wherein the base layer comprises at least one of tri-acetyl cellulose, polycarbonate, cyclo-olefin polymer, or poly (methyl methacrylate). 3. The protection film of claim 1 , further comprising a second inorganic layer below a bottom surface of the base layer. 4. The protection film of claim 1 , wherein a water vapor permeability of the protection film is less than 180 g/m 2 ·day. 5. The protection film of claim 1 , wherein the first inorganic layer comprises at least one of Si, Al, or Nb. 6. The protection film of claim 1 , wherein the first inorganic layer is in contact with the top surface of the base layer. 7. The protection film of claim 1 , wherein the base layer is configured to be folded and unfolded along at least one folding axis. 8. The protection film of claim 1 , wherein a thickness of the base layer is from 10 μm to 60 μm. 9. The protection film of claim 1 , wherein a thickness of the first inorganic layer is from 1 nm to 40 nm. 10. The protection film of claim 1 , wherein the surface coating layer further comprises an anti-fingerprint material. 11. The protection film of claim 1 , wherein the base layer comprises an ultraviolet blocking material. 12. The protection film of claim 1 , wherein the material of the surface coating layer comprises at least one of a siloxane resin, an epoxy resin, or an acrylic resin.
Assignees
Inventors
Classifications
Encapsulations · CPC title
Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title
Encapsulations · CPC title
Flexible OLED · CPC title
OLEDs integrated with touch screens · CPC title
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Frequently asked questions
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- What does patent US12433133B2 cover?
- A protection film and a display device are provided. A protection film may include a base layer having a phase difference less than 100 nm, an inorganic layer on at least one of top and bottom surfaces of the base layer, and a surface coating layer on the base layer and including a hard coating material.
- Who is the assignee on this patent?
- Samsung Display Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02B1/14. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 30 2025 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).