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Method for producing laminate, laminate, polarizing plate, image display device, and method for improving readability of image display device

A technology of an image display device and a manufacturing method, which can be used in the manufacture of semiconductor/solid-state devices, identification devices, polarizing elements, etc., and can solve the problems of poor coatability of a composition for forming an anti-glare layer, etc.

Active Publication Date: 2016-10-12
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the method described in Patent Document 5, since a large amount of inorganic fine particles are added, there is a problem that the coatability of the composition for forming an antiglare layer is deteriorated, and coating defects in the form of spots or stripes are likely to occur.

Method used

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  • Method for producing laminate, laminate, polarizing plate, image display device, and method for improving readability of image display device
  • Method for producing laminate, laminate, polarizing plate, image display device, and method for improving readability of image display device
  • Method for producing laminate, laminate, polarizing plate, image display device, and method for improving readability of image display device

Examples

Experimental program
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Effect test

preparation example Construction

[0227] (Preparation of Composition 1 for Antiglare Layer)

[0228] The blends shown below were dispersed using a bead mill to obtain an intermediate composition.

[0229] Next, the blends shown below were dispersed using a bead mill to obtain an inorganic fine particle dispersion.

[0230] Then, while stirring the intermediate composition with a disperser, the inorganic fine particle dispersion was gradually added to obtain a composition 1 for an antiglare layer.

[0231] (intermediate composition)

[0232] Organic fine particles (non-hydrophilized acrylic-styrene copolymer particles, average particle diameter 3.5 μm, refractive index 1.55, manufactured by Sekisui Chemical Co., Ltd.) 14 parts by mass

[0233] 65 parts by mass of pentaerythritol tetraacrylate (PETTA) (product name: PETA, manufactured by Daicel SciTech Co., Ltd.)

[0234] 35 parts by mass of urethane acrylate (product name "V-4000BA", manufactured by DIC Corporation)

[0235] Irgacure 184 (manufactured by BA...

Embodiment 1

[0264] The antiglare layer composition 1 was applied to one side of a translucent substrate (triacetyl cellulose resin film with a thickness of 60 μm, manufactured by Fujifilm Corporation, TD60UL) to form a coating film. Next, for the formed coating film, dry air at 70° C. was passed through at a flow rate of 0.2 m / s for 15 seconds, and then dried at a flow rate of 10 m / s at 70° C. for 30 seconds to dry the coated film. The solvent in the film is evaporated, and ultraviolet rays are irradiated so that the accumulated light amount becomes 100mJ / cm 2 , the coating film was cured to form an anti-glare layer with a thickness of 6 μm (when cured), and the laminate of Example 1 was produced.

Embodiment 2～4

[0266] The laminates of Examples 2-4 were produced in the same manner as in Example 1 except that the compositions 2 to 4 for an antiglare layer were used instead of the composition 1 for an antiglare layer.

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Abstract

Provided is a method for producing a laminate, having excellent production stability, and with which it is possible to obtain a display device with good anti-glare properties, while suppressing the occurrence of glare at an extremely high level, and having excellent contrast. Provided is a method for producing a laminate comprising an anti-glare layer having surface irregularities, on one surface of a light-transmitting substrate. The method has a step in which an anti-glare layer composition containing organic fine particles, inorganic fine particles, a binder resin and a solvent is applied to one surface of the light-transmitting substrate, and the applied film is dried and then cured, to form the anti-glare layer. The anti-glare layer composition is prepared by mixing and stirring the binder resin and organic fine particles into the solvent to prepare an intermediate composition, and subsequently mixing and dispersing the inorganic fine particles in the intermediate composition to form the anti-glare layer composition.

Description

technical field [0001] The present invention relates to a method for producing a laminate, a laminate, a polarizing plate, an image display device, and a method for improving the visibility of the 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, tablet computer, touch screen and other image display devices, the outermost surface is usually set There are optical layered bodies for antireflection. [0003] Such an optical layered body for antireflection suppresses reflection of an image or lowers reflectance by scattering and interference of light. [0004] As one of the optical layered bodies for antireflection, there is known an antiglare film in which an antiglare layer having an uneven shape is formed on the surface of a transparent substrate. The anti-glare film scatters external light by utilizing t...

Claims

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Application Information

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IPC IPC(8): G02B5/02B32B3/30B32B7/02G02B5/30G02F1/1335G09F9/00H01L51/50H05B33/02H05B33/14
CPCB32B3/30G02F1/1335G02B5/02G02B5/30G09F9/00H05B33/02H05B33/14B32B7/02
Inventor 皆越清馨辻本淳内藤亚矢大木贤治户部伸之古井玄
Owner DAI NIPPON PRINTING CO LTD
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