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Anti-glare film, manufacturing method of same, polarizing plate and image dislay device

An anti-glare film and a technology for its manufacturing method, which are applied in polarizing elements, nonlinear optics, optics, etc., can solve the problems of insufficient impact resistance of the anti-glare layer, and achieve a high level of anti-glare effect.

Active Publication Date: 2012-12-12
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, in an antiglare film provided with an antiglare layer formed by using resin beads swollen in a solvent in advance, the interface adhesion between the swollen resin beads in the antiglare layer and the binder resin The improvement only depends on the anchor effect (anka-effect) generated at the interface, so there is room for further improvement in adhesion, etc.
[0015] Therefore, for the conventional anti-glare film, the impact resistance as the whole anti-glare layer is not enough, and it is not possible to sufficiently prevent the damage caused by the anti-glare in the above-mentioned polarizing plate manufacturing process, etc., or when it is applied to a liquid crystal display. layer cracks

Method used

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  • Anti-glare film, manufacturing method of same, polarizing plate and image dislay device
  • Anti-glare film, manufacturing method of same, polarizing plate and image dislay device
  • Anti-glare film, manufacturing method of same, polarizing plate and image dislay device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0165] First, triacetyl cellulose (manufactured by Fujifilm Co., Ltd., thickness 80 μm) was prepared as a translucent substrate.

[0166] Next, as a radiation-curable adhesive, a mixture of pentaerythritol triacrylate (PETA), dipentaerythritol hexaacrylate (DPHA) and acetic acid-cellulose propionate (SAP) was used (mass ratio; PETA / DPHA / SAP =82 / 7 / 11) (refractive index 1.51); As a photopolymerization initiator, use 1-hydroxyl-cyclohexyl-phenyl-ketone: Irgacure 184 (manufactured by BASF) (100 parts by mass relative to the solid content of the adhesive 3 parts by mass); making it contain 6.0 parts by mass of low-crosslinked acrylic particles (refractive index 1.49, average particle diameter 5.0 μm) as organic fine particles (A) relative to 100 parts by mass of the radiation-curable adhesive, 5.0 parts by mass of polystyrene particles (refractive index 1.59, average particle diameter 3.5 μm) as microparticles (B) relative to 100 parts by mass of the radiation-curable adhesive, 100...

Embodiment 2～11、 comparative example 1～5

[0170] The type of organic microparticles (A) and microparticles (B) added to the coating liquid, the type and content of layered inorganic compounds, the presence or absence of surfactants, and the ratio of (coating liquid supply amount / coating amount) for example As shown in Table 1, except the above, it carried out similarly to Example 1, and produced the antiglare film.

[0171] Table 1

[0172]

[0173] Details of symbols shown in the organic fine particles (A), fine particles (B), layered inorganic compounds, and solvents shown in Table 1 are as follows. In addition, in Table 1, content of a layered inorganic compound shows content (mass part) with respect to 100 mass parts of radiation-curable adhesives.

[0174] (organic particle A)

[0175] A: Highly cross-linked acrylic particles (refractive index 1.49, average particle diameter 5.0 μm, manufactured by Soken Chemical Co., Ltd.)

[0176] B: Low-crosslinked acrylic particles (refractive index 1.49, average partic...

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Abstract

Disclosed is an anti-glare film having excellent shock-durability, and that suitably suppresses generation of a crack even when applied in a sheet-shaped display. The anti-glare film includes a light-transmitting substrate, and a diffusion layer formed on at least one surface of the light-transmitting substrate, wherein the diffusion layer is composed of a film formed by coating and drying on at least one surface of the light-transmitting substrate a coating liquid containing a radiation-curing type binder including as an essential component a layered inorganic compound, an organic fine particle (A), and a (meth) acrylate monomer, and curing the film. A content of the layered inorganic compound in the coating liquid is 2-40 parts by mass to 100 parts by mass of the radiation-curing type binder; and the layered inorganic compound is contained in a randomly oriented state.

Description

technical field [0001] The present invention relates to an antiglare film, a method for producing the antiglare film, a polarizing plate, and an image display device. Background technique [0002] In image display devices such as cathode ray tube display (CRT), liquid crystal display (LCD), plasma display (PDP), electroluminescence display (ELD), electronic paper, etc., the outermost surface is usually set for Optical layered body that prevents reflection. Such an optical layered body for antireflection suppresses reflection of an image or lowers reflectance by diffusion or interference of light. [0003] As one of the optical layered bodies for antireflection, there is known an antiglare film in which an antiglare layer having a concavo-convex shape is formed on the surface of a transparent substrate. The anti-glare film diffuses external light by utilizing the uneven shape of the surface, thereby preventing a decrease in visibility. [0004] As a conventional antiglare ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02G02B5/30G02F1/1335
CPCG02F1/133502G02B1/118G02B1/10G02B1/111G02B5/3025G02B5/0221
Inventor 儿玉崇本田诚铃木裕子
Owner DAI NIPPON PRINTING CO LTD
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