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A method for manufacturing mold and a method for manufacturing anti-dazzle membrane

A manufacturing method and a technology of molds, which are applied to the photoplate-making process of pattern surfaces, household appliances, and other household appliances, etc., can solve problems such as flickering, difficulty in precisely controlling concave-convex shapes, and overall whitening of the display surface, so as to prevent flickering Occurrence, good reproducibility, effect of suppressing cloudiness

Active Publication Date: 2010-05-26
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such an antiglare film produced by dispersing fillers has the following problems: Since the arrangement and shape of the unevenness are affected by the dispersion state of the filler in the resin solution, the coating state, etc., it is difficult to obtain the desired unevenness. Low film, can not get enough anti-glare effect
Furthermore, when such a conventional anti-glare film is arranged on the surface of an image display device, there is a problem that the entire display surface becomes whitish due to scattered light, and the so-called "white turbidity" in which the display becomes cloudy tends to occur.
In addition, with the recent improvement in the definition of image display devices, the pixel of the image display device interferes with the unevenness of the surface of the anti-glare film. As a result, there is a problem that the so-called "" Glittering” phenomenon
[0011] However, in such an embossing roller manufacturing method, since the hard chrome plating is sprayed and blasted, it is difficult to form irregularities, and it is difficult to precisely control the formed irregularities.
In addition, as described in Japanese Unexamined Patent Publication No. 2004-29672 (Patent Document 7), chromium plating depends on the material and shape of the base, and the surface is often rough. The fine cracks, so there is a design problem of what kind of concave and convex is feasible
Furthermore, since there are fine cracks generated by chrome plating, there is also a problem that the scattering characteristics of the finally obtained anti-glare film change in an undesired direction.
Furthermore, there is also the following problem: due to the combination of the material of the surface of the base material of the embossing roller and the type of plating, the surface of the completed roller has various changes, so in order to obtain the required surface unevenness with good accuracy, it is necessary to select Appropriate roller surface material and appropriate plating type
As a result, these large concavo-convex shapes interfere with the pixels of the image display device, and there is a problem that the so-called flicker, which becomes difficult to see due to the occurrence of grayscale distribution, tends to occur.

Method used

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  • A method for manufacturing mold and a method for manufacturing anti-dazzle membrane
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  • A method for manufacturing mold and a method for manufacturing anti-dazzle membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A1

[0130] An object in which Ballard copper plating (copper バラードチつき) was applied to the surface of an aluminum roll (A5056 according to JIS) with a diameter of 200 mm was prepared. Ballard plate copper plating consists of copper plating layer / thin silver plating layer / surface copper plating layer, and the overall thickness of the plating layer is set to about 200 μm. The copper-plated surface is mirror-polished, and a photosensitive resin is applied on the polished copper-plated surface and dried to form a photosensitive resin film. Next, the repeats are juxtaposed with a laser Figure 11 The pattern of the pattern shown in (a) is exposed on the photosensitive resin film, and it develops. Exposure and development by laser light were performed using Laser Stream FX (manufactured by Think Laboratory Co., Ltd.). The photosensitive resin film uses a positive-type photosensitive resin, and by adding Figure 11 In the pattern exposure shown in (a), the ratio of the projected area of...

Embodiment A2

[0137] The photocurable resin composition GRANDIC 806T (manufactured by Dainippon Ink Chemical Industry Co., Ltd.) was dissolved in ethyl acetate to make a solution with a concentration of 50% by weight, and then 5 wt. A coating solution was prepared using 1 part of luciferin TPO (manufactured by BASF Corporation, chemical name: 2,4,6-trimethylbenzoyldiphenylphosphine oxide) as a photopolymerization initiator. This coating liquid was applied on a triacetyl cellulose (TAC) film having a thickness of 80 μm so that the coating thickness after drying was 10 μm, and dried for 3 minutes in a dryer set at 60° C. The dried film was press-bonded with a rubber roller to the uneven surface of the mold obtained in Example A1 so that the photocurable resin composition layer was on the side of the mold, and brought into close contact. In this state, from the TAC film side, the amount of light converted from the h-line is 200mJ / cm 2 The way the irradiation intensity is 20mW / cm 2 The light ...

Embodiment B1

[0172] An object in which Ballard plated copper plating was provided on the surface of an aluminum roll with a diameter of 200 mm (A5056 according to JIS) was prepared. Ballard plate copper plating consists of copper plating layer / thin silver plating layer / surface copper plating layer, and the overall thickness of the plating layer is set to about 200 μm. The copper-plated surface is mirror-polished, and a photosensitive resin is applied on the polished copper-plated surface and dried to form a photosensitive resin film. Next, the repeats are juxtaposed with a laser Figure 16 The pattern formed by the shown pattern was exposed on the photosensitive resin film, and it developed. Exposure and development by laser light were performed using LaserStream FX (manufactured by Think Laboratory Co., Ltd.). The photosensitive resin film uses a positive-type photosensitive resin, and by adding Figure 16 In the pattern exposure shown, the ratio of the projected area of ​​the mask on ...

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Abstract

The invention relates to a method for manufacturing mold and a method for manufacturing anti-dazzle membrane. The method for manufacturing mold in the invention comprises the following procedures: a procedure of implementing copper or nickel plating on surface of base material for a mold; a procedure of grinding the plated surface; a procedure of performing filming by coating light-sensitive polymer; a procedure of exposing pattern on the light-sensitive polymer membrane; a procedure of developing the light-sensitive polymer membrane; a procedure of implementing etching treatment by taking the developed light-sensitive polymer membrane as mask, and forming concavo convex on grinded coated surface; a procedure of implementing chrome plating of the formed concavo convex surface; and in the procedure of etching treatment, whole surface of the base material for the mold is implemented etching treatment. The method for manufacturing anti-dazzle membrane in the invention used this mold.

Description

technical field [0001] The present invention relates to a method for producing a mold having fine unevenness on its surface, and a method for producing an anti-glare (Anti-Glare) film having low haze and excellent anti-glare properties using the mold obtained by the method. Background technique [0002] For image display devices such as liquid crystal displays, plasma display panels, Brown tube (cathode ray tube: CRT) displays, and organic electroluminescent (EL) displays, if external light shines on the display surface, visibility is significantly impaired. In order to prevent the reflection of such external light, in TVs and / or personal computers that value image quality, video cameras and / or digital cameras used outdoors where the external light is strong, and mobile phones that use reflected light for display, conventionally, image The surface of the display device is provided with a film layer to prevent external light from being reflected. The film layer is roughly di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C59/02B29C33/42B29C33/38G03F7/00G02F1/1335
CPCB29C33/3842B29C33/424B29C37/0017B29D11/00788G02B1/11
Inventor 古谷勉宫本浩史神野亨
Owner SUMITOMO CHEM CO LTD
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