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Anti-reflection film and production method therefor

A technology of anti-reflection film and amplitude reflectance map, which can be applied to other household appliances, electronic equipment, applications, etc., can solve the problems of reducing visual reflectivity, reflection hue and easy coloring, etc., and achieve excellent reflection characteristics, low reflectivity, Easy reflection characteristics and the effect of reflection hue

Active Publication Date: 2015-10-07
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the visual reflectance is to be reduced, there is a problem that the reflective hue is easy to produce coloring

Method used

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  • Anti-reflection film and production method therefor
  • Anti-reflection film and production method therefor
  • Anti-reflection film and production method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] The optical design of the reflection characteristics of the antireflection film having the composition of substrate / middle refractive index layer / high refractive index layer / low refractive index layer was performed using the complex number plane of the amplitude reflectance diagram at a wavelength of 580 nm. At this time, as shown in FIG. 2, the base material, the medium refractive index layer, and the high The refractive index and thickness of the refractive index layer and the low refractive index layer are set. Specifically, an antireflection film was produced in the following procedure.

[0097] A triacetyl cellulose (TAC) film with a hard coat layer (refractive index: 1.53) was used as a substrate. On the other hand, a coating liquid (composition for forming a medium refractive index layer) was prepared by mixing zirconia particles (average particle A diameter of 40 nm, a resin composition having a refractive index of 2.19) (manufactured by JSR Corporation, trade...

Embodiment 2～5 and comparative example 1～2

[0099] An antireflection film was prepared with the configuration shown in Table 1. The obtained antireflection film was used for the evaluation of the above-mentioned optical characteristics. The results are shown in Table 1.

[0100] [Table 1]

[0101]

Embodiment 6

[0103]Antireflection in the form of a layered structure of an additional high refractive index layer / an additional low refractive index layer for the medium refractive index layer, that is, having a base material / an additional high refractive index layer / an additional low refractive index layer / high refractive index The optical design of the antireflection film having the composition of layer / low refractive index layer was carried out in the same manner as in Example 1. At this time, according to FIG. 2, the base material, another high refractive index layer, and another The refractive index and thickness of the low refractive index layer, high refractive index layer and low refractive index layer are set. Specifically, an antireflection film was produced in the following procedure.

[0104] A triacetyl cellulose (TAC) film with a hard coat layer (refractive index: 1.53) was used as a substrate. Next, by sputtering Nb 2 o 5 , thereby forming an additional high-refractive i...

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Abstract

Provided is an anti-reflection film that has excellent reflection properties (i.e., low reflectivity) over a wide spectrum, and that has no coloring even with regard to the reflection hues of incident light from a front direction as well as an oblique direction. This anti-reflection film comprises a substrate, and, in order from the substrate side, a medium refractive index layer, a high refractive index layer, and a low refractive index layer. In the present invention, when optical design of the reflection properties of the anti-reflection film is carried out using the complex plane of a reflectance amplitude diagram at a wavelength of 580 nm, the refractive index and / or thickness of the substrate, medium refractive index layer, high refractive index layer and low refractive index layer are designed in such a manner that a line (AB) connecting a starting point (A) and an ending point (B) of the lamination path of the high refractive index layer intersects the real axis of the reflectance amplitude diagram.

Description

technical field [0001] The invention relates to an anti-reflection film and a manufacturing method thereof. More specifically, the present invention relates to a method for manufacturing an anti-reflection film including a dry process and a wet process, and the anti-reflection film obtained by the method. Background technique [0002] Conventionally, in order to prevent outside light from being reflected on the display screens of CRT (Cathode-Ray Tube, cathode ray tube), liquid crystal display devices, plasma display panels, etc., anti-reflection films arranged on the surface of display screens have been widely used. As an antireflection film, for example, a multilayer film having a layer made of a material with a medium refractive index, a layer made of a material with a high refractive index, and a layer made of a material with a low refractive index is known. It is known that high antireflection performance (low reflectance in a wide band) can be obtained by using the ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/11B32B7/02
CPCB32B7/02B32B2307/418B32B2457/20G02B1/11B32B2264/10B32B2255/10B32B2255/205G02B5/30G02B1/113Y10T428/24942
Inventor 岸敦史上野友德仓本浩贵
Owner NITTO DENKO CORP