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Optical laminates, polarizing paltes and image display devices

一种图像显示装置、光学叠层体的技术，应用在光学、光学元件、辨认装置等方向，能够解决防炫层光学特性低、分散稳定性降低等问题

Active Publication Date: 2009-06-17
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the case of forming an optical laminate with a resin composition for forming an anti-glare layer containing silica particles as an anti-dazzling agent, there is a reduction in the dispersion stability of the silica particles in the resin composition for forming an anti-glare layer. And agglutination, the problem of low optical properties of the formed anti-glare layer

Method used

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  • Optical laminates, polarizing paltes and image display devices

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0148] Preparation of resin composition 1 for anti-glare layer formation

[0149] UV curable resin:

[0150] Pentaerythritol triacrylate (PETA) (refractive index 1.51) 20 parts by mass

[0151] Cellulose acetate propionate (molecular weight 50000) 0.25 parts by mass

[0152] Photocuring Initiator:

[0153] Ilgakyyua 184 (manufactured by Chiba Specialty Chemicals Co., Ltd.) 1.2 parts by mass

[0154] Irugakuyua 907 (manufactured by Chiba Specialty Chemical Co., Ltd.) 0.2 parts by mass

[0155] Amorphous silica particles (dielectric constant 2.5) 1.24 parts by mass

[0156] (average particle size 1.0μm, surface hydrophobic treatment with silane coupling agent)

[0157] Silicone leveling agent 0.013 parts by mass

[0158] 34.0 parts by mass of toluene

[0159] 8.5 parts by mass of methyl isobutyl ketone

[0160] Mix the above materials thoroughly to make a composition. This composition was filtered through a filter made of polypropylene with a pore size of 30 μm to prep...

preparation example 2

[0162] Preparation of resin composition 2 for anti-glare layer formation

[0163] UV curable resin

[0164] Pentaerythritol triacrylate (PETA) (refractive index 1.51) 38 parts by mass

[0165] Cellulose acetate propionate (molecular weight 50000) 0.76 parts by mass

[0166] Photocuring Initiator:

[0167] Irugakuyua 184 (manufactured by Chiba Specialty Chemical Co., Ltd.) 2.3 parts by mass

[0168] Irugakuyua 907 (manufactured by Chiba Specialty Chemicals Co., Ltd.) 0.4 parts by mass

[0169] Amorphous silica particles (average particle diameter 1.5 μm, dielectric constant 2.5) 1.16 parts by mass

[0170] Amorphous silica particles (average particle diameter 1.0 μm, dielectric constant 3.0) 7.27 parts by mass

[0171] Silicone leveling agent 0.079 parts by mass

[0172] 60.2 parts by mass of toluene

[0173] 14.1 parts by mass of methyl isobutyl ketone

[0174] Mix the above materials thoroughly to make a composition. This composition was filtered through a filter m...

preparation example 3

[0176] Preparation of resin composition 3 for anti-glare layer formation

[0177] UV curable resin

[0178] Pentaerythritol triacrylate (PETA) (refractive index 1.51) 2.20 parts by mass

[0179] Isocyanuric acid-modified diacrylate M215 (manufactured by Nippon Kayaku Co., Ltd., refractive index 1.51)

[0180] 1.21 parts by mass

[0181] Polymethyl methacrylate (molecular weight 75000) 0.34 parts by mass

[0182] Photocuring Initiator:

[0183] Irugakuya 184 (manufactured by Chiba Specialty Chemicals Co., Ltd.) 0.22 parts by mass

[0184] Irugakuyua 907 (manufactured by Chiba Specialty Chemical Co., Ltd.) 0.04 parts by mass

[0185] Translucent first particle:

[0186] Monodisperse acrylic beads (particle size 9.5 μm, refractive index 1.535) 0.82 parts by mass

[0187] Translucent second particle: 1.73 parts by mass

[0188] Amorphous Silica Ink (Amorphous Silica Ink)

[0189] (average particle size 1.5μm, sol...

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Abstract

The invention relates to an optical lamination body, a polarization plate and an image displaying device. Even thought an anti-glaring layer contains silicon dioxide particles, the optical lamination body has good optical character with reasonable agglutinated silicon dioxide particles. The optical lamination body comprises a transparent substrate and the anti-glaring layer containing the silicondioxide particles, wherein the dielectric constant of the silicon dioxide particles is less than 4.0.

Description

technical field [0001] The present invention relates to an optical laminate, a method for producing the same, a polarizing plate (polarizing plate) having the aforementioned optical laminate, and an image display device having any one of the optical laminate and the polarizing plate. Background technique [0002] On the surface of image display devices such as cathode ray tube display (CRT), liquid crystal display (LCD), plasma display (PDP), electroluminescence display (ELD), etc., an optical stack including functional layers with various functions is provided. layers. As such an optical laminated body, there is known a laminated structure in which functional layers such as an anti-glare layer and a low-refractive index layer are sequentially provided on a substrate, and an optical laminated body containing fine particles as an anti-glare agent in these functional layers (For example, refer to Patent Documents 1 and 2). It has excellent anti-glare properties. [0003] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/10G02B1/11G02B5/30G02F1/1335G09F9/30
CPCG02B5/3008G02F1/133528G02F2202/22G02B5/3033B32B5/16G02F2201/38Y10T428/27G02B5/02G02F1/1335
Inventor 山本佳奈伊藤洁
Owner DAI NIPPON PRINTING CO LTD
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