Curved screen protection film and preparation method thereof

A technology of curved screen and protective film, applied in the direction of pressure-sensitive film/sheet, film/sheet release liner, film/sheet release coating, etc., can solve the problem that the bending property of the protective film cannot meet the requirements, warping and so on , to achieve the effect of improving fixation, improving flexibility, and improving impact resistance

Active Publication Date: 2019-08-09
佛山固泰明科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is softer than 100 micron PET monolayer, so it has good thermoformability, however, the warping phenomenon on 3D products with large curvature is serious
[0006] Chinese Patent Publication No. CN107187128B provides a curved surface protective film, which includes a first PET release film, a first hardening layer, a substrate layer, a second hardening layer, a silica gel layer and a fluorinated organic silicon release film laminated sequentially from top to bottom. Type layer; by setting two hardened layers, a PET release layer is set on the first hardened layer, and a silicone layer is set on the second hardened layer, which can improve the final bonding stability and hardness of the product, but the protective film The bendability still cannot meet the requirements, and edge warping still occurs when attached to 3D and folding electronic products with large screen curvature
[0007] Therefore, the existing technology has a large room for improvement

Method used

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  • Curved screen protection film and preparation method thereof
  • Curved screen protection film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A curved screen protective film, comprising a scratch-resistant layer, a PET base material, an elastomer layer, a silica gel layer, and a fluorine release film arranged in sequence; the thickness of the PET base material is 25 microns, and the thickness of the elastomer layer is 60 microns, the thickness of the silica gel layer is 20 microns, the thickness of the scratch-resistant layer is 3 microns, and the thickness of the fluorine release film is 75 microns; the silica gel layer is a silicone pressure-sensitive adhesive layer; the fluorine The plain release film is a PET substrate coated with a fluorine release agent; the elastomer layer includes a hydrogenated styrene-butadiene block copolymer.

[0032] The anti-scratch layer mainly adopts ultraviolet curable coatings, and the raw material components of the coatings are: 50 parts of hexafunctional aliphatic urethane acrylate, 20 parts of dipentaerythritol hexaacrylate, 3 parts of anti-fingerprint coating additives, p...

Embodiment 2

[0041] A curved screen protective film, comprising a scratch-resistant layer, a PET base material, an elastomer layer, a silica gel layer, and a fluorine release film arranged in sequence; the thickness of the PET base material is 38 microns, and the thickness of the elastomer layer is 50 microns, the thickness of the silica gel layer is 40 microns, the thickness of the scratch-resistant layer is 3 microns, and the thickness of the fluorine release film is 75 microns; the silica gel layer is a silicone pressure-sensitive adhesive layer; the fluorine The plain release film is a PET substrate coated with a fluorine release agent; the elastomer layer includes thermoplastic polyurethane elastomer.

[0042] The anti-scratch layer mainly adopts ultraviolet curable coatings, and the raw material components of the coatings are: 60 parts of hexafunctional aliphatic urethane acrylate, 30 parts of dipentaerythritol hexaacrylate, 5 parts of anti-fingerprint coating additives, photoinitiate...

Embodiment 3

[0051] A curved screen protective film, comprising a scratch-resistant layer, a PET substrate, an elastomer layer, a silica gel layer, and a fluorine release film that are sequentially structured; the thickness of the PET substrate is 50 microns, and the thickness of the elastomer layer is The thickness of the silica gel layer is 50 microns, the thickness of the scratch-resistant layer is 3 microns, and the thickness of the fluorine release film is 75 microns; the silica gel layer is a silicone pressure-sensitive adhesive layer; the The fluorine release film is a PET substrate coated with a fluorine release agent; the elastomer layer includes acrylic resin.

[0052] The anti-scratch layer mainly adopts ultraviolet curable coatings, and the raw material components of the coatings are: 70 parts of hexafunctional aliphatic urethane acrylate, 40 parts of dipentaerythritol hexaacrylate, 8 parts of anti-fingerprint coating additives, photoinitiated 10 parts of solvent and 30 parts o...

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Abstract

The invention relates to the technical field of curved screen protection films, in particular to a screen protection film for protecting curved liquid crystal screens and a manufacturing method of thescreen protection film. The curved screen protection film structurally comprises an anti-scratching layer, a PET base material, an elastomer layer, a silica gel layer and a fluorine release film which are sequentially arranged. According to the protection film, the arranged elastomer layer is beneficial to improving the bending property and drop resistance of the protection film, and under cooperation with the silica gel layer arranged on a protection film body, improvement of the fixing and fitting property of the protection film is facilitated, so that the problem of edge warping is effectively solved, and the protection film is suitable for the design of large angles and radians of the edge positions of mobile phone screens. Through the reasonable arrangement of the structure and thickness of each layer, the protection film has the basic performance of a PET screen protection film, and meanwhile, the flexibility, drop resistance and edge warping resistance of the protection film are further improved.

Description

technical field [0001] The invention relates to the technical field of curved screen protection films, and more specifically relates to a screen protection film for protecting curved screens and folding screens and a manufacturing method thereof. Background technique [0002] With the vigorous development of electronic technology, electronic products such as mobile phones, tablet computers, and notebook computers are being introduced from old to new. At present, the combination of screen and touch, and products with large screen and large curvature have gradually become the mainstream, so the requirements for screen protection films are also getting higher and higher. If the screen protective film is only required to have a transparent appearance, scratch resistance, good wear resistance, and antifouling functions during use, the single-layer PET-based scratch-resistant screen protective film widely used in the market can meet the requirements. However, most of today's high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38C09J7/50C09J7/40C09J7/20C09J7/25C09D175/14C08F220/18C08F220/06C08F220/20C08F222/14C08F2/48
CPCC09J7/38C09J7/50C09J7/40C09J7/20C09J7/255C09D175/14C08F220/18C08F2/48C09J2203/318C09J2467/006C08F220/1808C09J2301/122C09J2301/302C08F220/1811C08F220/06C08F222/103C08F220/20
Inventor 郑锺泽
Owner 佛山固泰明科技有限公司
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