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Antidazzle film and its production method, method for producing metal mould used therefore, and display device

A technology of metal molds and anti-glare films, which can be used in optics, instruments, optical components, etc., and can solve problems such as insufficient durability

Inactive Publication Date: 2007-07-25
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, even if a suitable surface concave-convex shape is obtained, durability in use becomes insufficient in some cases depending on the kind of plating

Method used

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  • Antidazzle film and its production method, method for producing metal mould used therefore, and display device
  • Antidazzle film and its production method, method for producing metal mould used therefore, and display device
  • Antidazzle film and its production method, method for producing metal mould used therefore, and display device

Examples

Experimental program
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Effect test

Embodiment 1

[0119] The surface of an aluminum coil (A5056 based on JIS) having a diameter of 200 mm subjected to copper ballard plating was prepared. Copper Ballard plating consists of copper plating / thin silver plating / surface copper plating, and the thickness of the entire plating is about 200μm. The surface of the copper electroplating is mirror-polished. In addition, when the injection pressure is 0.1MPa (gauge pressure, the same below), the injection pressure is 8g / cm 2 The amount of beads used (per 1cm 2 The amount used on the surface of the coil, the same below), by using a blasting device (manufactured by FUJI MANUFACTURING CO., LTD.), zirconium beads "TZ-SX-17" (trade name, average particle diameter) manufactured by Tosoh Corporation 20 μm) onto the polished surface to form concave-convex portions on the surface. Chromium plating was performed on the copper-plated aluminum coil having the thus-obtained concave-convex portions, and thus a metal mold was manufactured. At this ti...

Embodiment 2 and 3 and comparative example 1 and 2

[0129] In the same manner as in Example 1, a metal mold having concave-convex portions on the surface was prepared except that the conditions for producing the metal mold were changed as shown in Table 1. In the same manner as in Example 1, a corresponding metal mold was used to manufacture a transparent antiglare film having concave-convex portions on the surface and consisting of a laminated product of a cured resin and a TAC film . The surface shape, optical characteristics, and antiglare performance of the antiglare film thus obtained are shown in Table 1 together with the conditions for producing the metal mold. In Table 1, (A) illustrates the conditions for producing the metal mold and the surface shape of the antiglare film, and (B) illustrates the optical characteristics and antiglare performance of the antiglare film. In the table, ">99.5%" in the column of inclination angle "≤6°" means that the ratio of planes with an inclination angle equal to or less than 6 degree...

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Abstract

One object of the present invention is to provide an antidazzle film which has excellent antidazzle function and vision confirm performance, a method for manufacturing the antidazzle film and a method for manufacturing metal die used for obtaining the antidazzle film, and apply the antidazzle film to image display device. In the antidazzle film, a transparent substrate is formed with refined dent-convex part, the average length PSm of the section curve on the dent-convex surface is less than 12 mum, the rate Pa / PSm between the arithmetic average height Pa and the average length PSm in the section curve is 0.005-0.012, the rate of the plane of the dent-convex surface with an incline angle equals to or smaller than 2 degrees is less than 50%, and the rate of the plane of the dent-convex surface with an incline angle equals to or smaller than 6 degrees is more than 90%.

Description

technical field [0001] The present invention relates to an antiglare film having low haze and excellent antiglare properties, a method of producing the antiglare film, a method of producing a metal mold for producing the antiglare film, and an image display device including the antiglare film. Background technique [0002] In an image display device such as a liquid crystal display, a plasma display panel, a cathode ray tube (CRT) display, or an organic electroluminescence (EL) display, when external light is projected into its display plane, visual recognition is significantly deteriorated. In order to prevent the projection of external light, conventionally, on the display surfaces of televisions and personal computers whose image quality is considered important, video cameras and digital cameras used outdoors under strong sunlight, and cellular phones having displays that display images by reflecting light , has provided a film that prevents the projection of external lig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/10G02B1/11
CPCG02B1/11G02B5/0221G02B5/0226G02B5/0231G02B5/0278
Inventor 古谷勉桑原真人
Owner SUMITOMO CHEM CO LTD
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