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Manufacturing method of optical film, polarizing plate and image display device

A manufacturing method and optical film technology, applied to the surface coating liquid device, optics, optical components, etc., can solve the problems of high cost, insufficient effect, limited width of optical film, etc., and achieve the effect of high productivity

Active Publication Date: 2016-07-06
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this method, it is considered that there is some effect on the above-mentioned problem of "residue of resin" remaining on the surface of the mold, but the effect on the problem of peeling and falling of the cured resin from the both end regions of the cured coating layer is not sufficient.
[0008] In addition, according to the method described in JP2007-203678-A, since smooth surfaces are provided at both ends of the mold, the width of the desired shape in the laminated body of the cured resin and the base film becomes constant, and the manufactured optical Membrane width is limited
In addition, when it is desired to change the width to form a desired shape, there is a problem that a new mold is required and the cost increases

Method used

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  • Manufacturing method of optical film, polarizing plate and image display device
  • Manufacturing method of optical film, polarizing plate and image display device
  • Manufacturing method of optical film, polarizing plate and image display device

Examples

Experimental program
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Effect test

Embodiment 1

[0094] (1) Production of roll casting

[0095] The surface of an aluminum roller with a diameter of 200 mm (according to JIS A5056) was prepared by applying ballard copper plating. The Ballard copper plating layer is composed of copper plating layer / thin silver plating layer / surface copper plating layer, and the thickness of the entire plating layer is set to about 200 μm. The copper-plated surface was mirror-polished, and a photosensitive resin was applied to the polished copper-plated surface and dried to form a photosensitive resin film. Next, use a laser to align the photosensitive resin film image 3 The pattern in which the pattern shown in is repeatedly arranged is exposed and developed. Exposure and development with a laser were performed using LaserStreamFX (manufactured by ThinkLaboratory, Inc.).

[0096] Again, as image 3 The image data of the pattern shown in is a random arrangement of dots with a diameter of 16 μm, and is created with a size of 20.9 mm×20.9 mm at ...

Embodiment 2

[0106] Except that the cumulative amount of light in the UVA area of ​​the first curing step is 30mJ / cm 2 Except this, an optical film was produced in the same manner as in Example 1.

Embodiment 3

[0108] Except that the cumulative amount of light in the UVA area of ​​the first curing step is 10mJ / cm 2 Except this, an optical film was produced in the same manner as in Example 1.

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Abstract

PURPOSE: A method for manufacturing an optical film, a polarizing plate, and an image display device are provided to improve quality and to prevent deformity. CONSTITUTION: A ceramic solution which contains active energy ray hardening resin is spread on a base film(11) and a coating layer is formed. Active energy rays are radiated in a both ends region of a direction which is at right angle to a feeding direction of the base film. The width of the both ends region is a range of 100micrometers to 5cm. The active energy rays are radiated on the coating layer from the base film while pressing the surface of a mold onto the surface of the coating layer.

Description

Technical field [0001] This invention relates to the manufacturing method of the optical film which apply|coated and hardened the coating liquid containing active energy ray curable resin on a base film. In addition, the present invention also relates to a polarizing plate and an image display device using the optical film. Background technique [0002] An optical film in which a resin layer having a predetermined optical function is formed by coating on a base film is used as an anti-glare film, light diffusion film, hard coat film, etc., in various image displays such as liquid crystal display devices. Device. [0003] Generally, the said resin layer which an optical film has is formed by apply|coating a coating liquid containing an active energy ray curable resin on a base film, and irradiating an active energy ray to the obtained coating layer, and it is formed by hardening. According to the optical properties required for the optical film, in order to give a desired shape to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/10G02B5/30G02F1/1335B05D7/24B05D3/06B29C39/18B29C59/04B29L9/00B29L11/00G02B1/14
CPCB29C39/18B29C59/04B29D11/00644G02B1/10G02B5/3041
Inventor 神野亨神崎昌金玉馨金云基
Owner SUMITOMO CHEM CO LTD