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Stacking film for optical application

A technology of laminated film and substrate film, applied in optics, optical components, nonlinear optics, etc., can solve the problem of low wear resistance

Active Publication Date: 2012-11-28
TORAY ADVANCED MATERIALS KOREA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, antireflective films produced by wet coating disadvantageously have a problem of lower abrasion resistance compared to antireflective films produced by dry coating

Method used

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  • Stacking film for optical application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Formation of high refractive index layer 110

[0083] Coating material containing tin-doped indium oxide (ITO) particles (35.7% solids, polyfunctional polyurethane (meth)acrylate / ITO particles (30nm primary average particle size) = 18 / 82) (E1- 3. It was purchased from Dai Nippon Paint Co.) and a fluorine-containing coating material (10% solids, LR-S6000, purchased from Toray Inc.) was mixed in a weight ratio of 100:2. Then, the mixture was applied to one side of a 188 μm thick polyester film (Lumirror, purchased from Toray Inc.) using a microgravure coater. Then dry the film at 80°C and pass 1.0J / cm 2 The applied layer was cured by the UV irradiation of 10 to form a high refractive index layer 110 about 100 nm thick and having a refractive index of 1.65.

[0084] Form a low refractive index hard coating 120

[0085] Coating material including multifunctional acrylic resin (50% solids) (KZ7528, purchased from JSR Co.) and coating including fluorine-containing copolymer (fl...

Embodiment 2

[0088] Formation of high refractive index layer 110

[0089] Coating material containing tin-doped indium oxide (ITO) particles (35.7% solids, multifunctional urethane (meth)acrylate / ITO particles (30nm primary average particle size) = 18 / 82) (E1- 3. It was purchased from Dai Nippon Paint Co.) and a fluorine-containing coating material (10% solids, LR-S6000, purchased from Toray Inc.) was mixed in a weight ratio of 100:10. Then, the mixture was coated on one side of a 188 μm thick polyester film (Lumirror, purchased from Toray Inc.) with a micro-gravure coater. Then dry the film at 80°C and pass 1.0J / cm 2 The UV irradiation of 1H cures the applied layer to form a high refractive index layer 110 about 100 nm thick and having a refractive index of 1.60.

[0090] Form a low refractive index hard coating 120

[0091] Coating material including multifunctional acrylic resin (50% solids) (KZ7528, purchased from JSR Co.) and coating including fluorine-containing copolymer (fluoroolefin...

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Abstract

The present invention relates to a stack membrane for optical application, in particular relates to a stack membrane for optical application with excellent antireflex ability, wear-resisting ability and capable of being manufactured with low cost. The stack membrane is characterized by comprising: a substrate membrane; a high refraction index layer provided on at least a side of the substrate membrane, the layer comprising resin containing fluorine compound, metal oxide and photo-polymerization initiator, the layer having a refraction index of 1.58-1.70 and thickness of 30-100; and a hard coating layer with low refraction index provided on the high refraction index layer, the hard coating layer comprising (meth)acrylic acid ester, fluorine-containing copolymer with vinyl ester structure on main chain and metal oxide, the hard coating layer also having a refraction index of 1.38-1.48 and thickness of 0.05-10.0[mu]m.

Description

Technical field [0001] The present invention relates to a laminated film for optical applications, and more particularly, to a laminated film for optical applications with excellent anti-reflection properties and abrasion resistance, which can be produced cost-effectively. Background technique [0002] Generally, in PDP, CRT, and LCD displays, the reflection of incident light on the screen makes it difficult to view the displayed image. Especially, when the flat panel display is large, solving the above-mentioned problems becomes a more important problem. [0003] In order to solve the above problems, anti-reflection treatment or glare reduction treatment has been applied, for example, anti-reflection films for displays are used. [0004] This anti-reflection film is produced in the following way, that is, by conventional dry coating methods, such as deposition, sputtering, etc., the low refractive index material (MgF 2 ) Is applied to the substrate film to become a film, or by alte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/11B32B27/06
CPCG02B1/111G02B1/14G02B1/16G02F1/1335G02F2201/38
Inventor 崔光辉李文馥徐基奉严相烈金相弼赵荣镐
Owner TORAY ADVANCED MATERIALS KOREA