Thin protective display film
US-2017165950-A1 · Jun 15, 2017 · US
Protective display film
US10090480B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10090480-B2 |
| Application number | US-201715690391-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 30, 2017 |
| Priority date | Dec 15, 2015 |
| Publication date | Oct 2, 2018 |
| Grant date | Oct 2, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
A display film includes a transparent polymeric substrate layer and a transparent aliphatic cross-linked polyurethane layer disposed on the transparent polymeric substrate layer. The transparent aliphatic cross-linked polyurethane layer has a glass transition temperature in a range from 11 to 27 degrees Celsius and a Tan Delta peak value in a range from 0.5 to 2.5. The display film has a haze value of 1% or less.
First claim
Opening claim text (preview).
What is claimed is: 1. An article, comprising: an optical display; a display film disposed on the optical display, the protective film comprising: a transparent polymeric substrate layer; a transparent aliphatic cross-linked polyurethane layer disposed on the transparent polymeric substrate layer, the transparent aliphatic cross-linked polyurethane layer having a glass transition temperature in a range from 11 to 27 degrees Celsius, a Tan Delta peak value in a range from 0.5 to 2.5, a cross-link density in a range from 0.34 to 0.65 mol/kg, and a NCO/OH ratio in a range from 0.8 to 1; the display film having a haze value of 1% or less; an optical adhesive layer fixing the transparent polymeric substrate layer to the optical display. 2. The article according to claim 1 , wherein the optical display comprises an OLED display panel. 3. The article according to claim 1 , wherein the optical display and the display film is foldable so that the optical display faces itself and at least a portion of the display film overlaps another portion of the display film. 4. The article according to claim 1 , wherein the display film maintains a haze value of 1% or less and remains intact after at least 100,000 folding cycles about a 3 mm or less radius.
Assignees
Inventors
Classifications
Electricity · mapped topic
Displays, e.g. liquid crystal displays, plasma displays · CPC title
comprising polyurethanes · CPC title
Transparent · CPC title
- H01L51/0097Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US10090480B2 cover?
- A display film includes a transparent polymeric substrate layer and a transparent aliphatic cross-linked polyurethane layer disposed on the transparent polymeric substrate layer. The transparent aliphatic cross-linked polyurethane layer has a glass transition temperature in a range from 11 to 27 degrees Celsius and a Tan Delta peak value in a range from 0.5 to 2.5. The display film has a haze v…
- Who is the assignee on this patent?
- 3M Innovative Properties Co
- What technology area does this patent fall under?
- Primary CPC classification H01L51/0097. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 02 2018 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).