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Fingerprint-resistant anti-reflection film

An anti-reflection film, anti-fingerprint technology, used in optics, instruments, layered products, etc., can solve the problem of not completely preventing the adhesion of sebum and dirt, and achieve full anti-reflection, improved erasability, and small appearance changes.

Active Publication Date: 2015-09-09
HIGASHIYAMA FILM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this method, a certain degree of anti-fingerprint effect is obtained without increasing the number of processes, but this does not completely prevent the adhesion of sebum dirt

Method used

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  • Fingerprint-resistant anti-reflection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0141] On a transparent substrate film formed of a triacetylcellulose (TAC) film having a thickness of 80 μm, a roll coater was used to apply a composition for forming a hard coat layer (manufactured by TOYO INK ( Co., Ltd., Lioduras LAS1303NL), dried at 80° C. for 2 minutes. Then, in a nitrogen atmosphere, irradiate ultraviolet rays with a 120W high-pressure mercury lamp (manufactured by Nippon Battery Co., Ltd.) (cumulative light intensity: 300mJ / cm 2 ) to cure the composition for forming a hard coat layer to form a hard coat layer. The refractive index of this hard coat layer was 1.53.

[0142] Next, the composition H-1 for forming a high refractive index layer was coated on the hard coat layer so that the thickness at the time of drying was 155 nm, and then an ultraviolet irradiation device (manufactured by EYE GRAPHICS Co., Ltd., 120 W high pressure) was used under a nitrogen atmosphere. Mercury lamp) was irradiated with 300 mJ of ultraviolet rays to cure the compositio...

Embodiment 1-2

[0145] Except using the composition H-2 for forming a high refractive index layer, setting the film thickness of the high refractive index layer to 150 nm, and setting the film thickness of the low refractive index layer to 100 nm, it was produced in the same manner as in Example 1-1. Films of Examples 1-2.

Embodiment 1-3

[0147] The film of Example 1-3 was produced in the same manner as in Example 1-2 except that the film thickness of the high refractive index layer was 155 nm and the film thickness of the low refractive index layer was 80 nm.

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Abstract

　A fingerprint-resistant anti-reflection film having a hard coat layer, a high-refractive-index layer, and a low-refractive-index layer laminated in the stated order on one side of a transparent base film. The refractive index of the high-refractive-index layer is 1.50-1.65, and the film thickness thereof is 130-180 nm. The refractive index of the low-refractive-index layer is 1.36-1.42, and the film thickness thereof is 70-100 nm. The minimum reflectance wavelength (λ(min)) in a wavelength range of 350-850 nm is 350-530 nm, and the wavelength (λ(bend)) at the bending point in the wavelength range of 350-850 nm satisfies the relationship λ(min) < λ(bend). Furthermore, the luminous reflectance of the fingerprint-resistant anti-reflection film is 2.0% or lower, the reflection chroma (C) is less than 6.0, and the reflection color difference (△Ｅ) before and after adhesion of sebum soil is less than 7.0.

Description

technical field [0001] The present application relates to a fingerprint-resistant antireflection film attached to the surface of a touch panel display, glass or the like used in building materials, vehicles, or art fields. Background technique [0002] Display products such as TVs, personal computers, and mobile phones are usually equipped with anti-reflection films to reduce or even prevent reflection of external light in order to improve image quality. However, recently, with the continuous development of touch screens in these display products, even when anti-reflection films are installed, there is still a problem of image quality degradation due to sebum dirt such as fingerprints adhering to the surface of the anti-reflection film. In addition, in the field of building materials, vehicles, or art, there are opportunities to attach anti-reflective films to windows or glass cabinets in order to improve visibility. The problem of reduced visibility caused by dirt. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/11B32B7/02G02B1/10G02B1/14
CPCG02B1/11G02B1/10G02B27/0006G02B1/111
Inventor 内田圭祐村濑将幸野岛孝之
Owner HIGASHIYAMA FILM CO LTD
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