Anti-reflective film, anti-reflective film production method, polarization plate and image display device

一种防反射膜、反应性的技术，应用在偏振元件、化学仪器和方法、仪器等方向，能够解决低折射率层硬度不充分等问题

Active Publication Date: 2013-09-11
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, even in such a low-refractive-index layer containing a fluoropolymer and hollow silica particles, when the content of the fluoropolymer is high enough to sufficiently reduce refraction, the hardness of the low-refractive index layer may not be sufficient. question

Method used

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  • Anti-reflective film, anti-reflective film production method, polarization plate and image display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0177] Wet weight 30g / m on one side of cellulose triacetate film (thickness 80μm) 2 (dry weight 15g / m 2 ) to apply a hard coat composition having the following composition to form a coating film. Next, the formed coating film was dried at 50°C for 30 seconds and irradiated with 50mJ / cm 2 UV rays form a hard coating.

[0178] (composition for hard coat)

[0179] urethane acrylate

[0180] (BS371, product made by Arakawa Chemical Co., Ltd., solid content 70%) 4.0 parts by mass

[0181] (UV1700B, manufactured by Nippon Gosei Co., solid content 70%) 12.0 parts by mass

[0182] 0.6 parts by mass of a polymerization initiator (Irgacure 184; manufactured by Ciba Seika Co., Ltd.)

[0183] 5.6 parts by mass of methyl ethyl ketone

[0184] 0.2 parts by mass of leveling agent (Defensa MCF350-5, manufactured by DIC Corporation, solid content 5%)

[0185] Next, a coating liquid for a low-refractive index layer having the following composition was coated on the formed hard coat laye...

Embodiment 2

[0196] An antireflection film was obtained in the same manner as in Example 1 except that dipentaerythritol hexaacrylate (DPHA) was used instead of PETA for the coating liquid for a low refractive index layer.

Embodiment 3

[0198] An antireflection film was obtained in the same manner as in Example 1 except that the amount of hollow silica fine particles mixed in the coating liquid for a low refractive index layer was 500.0 parts by mass.

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Abstract

An anti-reflective film has a hard-coated layer and a low-refractive index layer on a light-transmissive substrate, and is characterized in that the low-refractive index layer consists of (metha)acrylic resin, hollow silica microparticles, reactive silica microparticles and two anti-fouling agents, the hollow silica microparticles have an average particle size of 40-80nm, the compounding ratio to the (metha)acrylic resin (hollow silica microparticle content / (metha)acrylic resin content) is 0.9-1.4, the reactive silica microparticle content is 5-60 parts by weight with respect to 100 parts by weight of the (metha)acrylic resin, and the anti-fouling agents consist an anti-fouling agent comprising a fluorine-based compound and an anti-fouling agent comprising a fluorine-silicone-based compound.

Description

【Technical field】 [0001] The present invention relates to an antireflection film, a method for producing the antireflection film, a polarizer and an image display device. 【Background technique】 [0002] In image display devices such as cathode line tube display (CRT), liquid crystal display (LCD), plasma display (PDP), electroluminescence display (ELD), field emission display (FED), etc., for image display On the surface, it is required to reduce the reflection and improve the visibility due to the light irradiated from the external light source. On the other hand, it is generally used to reduce the reflection on the image display surface of the image display device and improve the visibility by using an antireflection film in which an antireflection layer is formed on a translucent base material. [0003] Conventionally, as an antireflection film, there is known a structure in which a low-refractive-index layer having a refractive index lower than that of a light-transmitt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/11B32B7/02B32B27/18B32B27/20B32B27/30G02B1/10G02B5/30G02F1/1335
CPCG02B5/3033G02B27/0006G02F1/1335G02F1/133502C08K5/523G02B1/111C03C21/002C08J5/18C08L1/10G02B1/04G02B5/305C08J5/249C08L2205/02C08L63/00C08J2300/20C08J2333/08
Inventor 林真理子堀尾智之西村佳泰猪俣裕哉中村启志用木麻友
Owner DAI NIPPON PRINTING CO LTD
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