Protective film, electronic device having same, and method for attaching protection film

US11457536B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11457536-B2
Application numberUS-201916567847-A
CountryUS
Kind codeB2
Filing dateSep 11, 2019
Priority dateNov 20, 2018
Publication dateSep 27, 2022
Grant dateSep 27, 2022

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An electronic device includes a flexible display module, a window on the flexible display module, and a protective base film on the window, and having a first modulus at a first temperature and a second modulus lower than the first modulus at a second temperature 80° C. higher than the first temperature, wherein the difference between the first modulus and the second modulus may be no greater than about 985 MPa.

First claim

Opening claim text (preview).

What is claimed is: 1. An electronic device comprising: a flexible display module; a window on the flexible display module; and a protective base film on the window, and having a first modulus at a first temperature and a second modulus lower than the first modulus at a second temperature that is about 80° C. higher than the first temperature, wherein a difference between the first modulus and the second modulus is 985 MPa or less. 2. The electronic device of claim 1 , wherein the first temperature is about minus 20° C., and the second temperature is about 60° C. 3. The electronic device of claim 1 , wherein the first modulus is 1,000 MPa or less. 4. The electronic device of claim 1 , wherein the second modulus is 15 MPa or more. 5. The electronic device of claim 1 , further comprising a functional layer on the protective base film. 6. The electronic device of claim 5 , wherein a thickness of the functional layer is no greater than about one tenth of a thickness of the protective base film. 7. The electronic device of claim 1 , wherein a thickness of the protective base film is about 30 μm or more to about 300 μm or less. 8. The electronic device of claim 1 , further comprising an adhesive layer between the window and the protective base film. 9. The electronic device of claim 1 , wherein the flexible display module is a foldable display module. 10. The electronic device of claim 1 , wherein the flexible display module comprises: a display panel; a sensing unit on the display panel; and a reflection prevention layer on the sensing unit.

Assignees

Inventors

Classifications

  • H04M1/0268Primary

    including a flexible display panel · CPC title

  • the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

  • Plastics; Metallised plastics · CPC title

  • Displays, monitors, TV-sets, computer screens · CPC title

  • G09F9/301Primary

    flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title

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Frequently asked questions

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What does patent US11457536B2 cover?
An electronic device includes a flexible display module, a window on the flexible display module, and a protective base film on the window, and having a first modulus at a first temperature and a second modulus lower than the first modulus at a second temperature 80° C. higher than the first temperature, wherein the difference between the first modulus and the second modulus may be no greater t…
Who is the assignee on this patent?
Samsung Display Co Ltd
What technology area does this patent fall under?
Primary CPC classification H04M1/0268. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Sep 27 2022 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).