Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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: 2014-11-12
SUMITOMO CHEM CO LTD
View PDF15 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for manufacturing mold and a method for manufacturing anti-dazzle membrane
  • A method for manufacturing mold and a method for manufacturing anti-dazzle membrane
  • 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 plate copper plating was performed on the surface of an aluminum roll (A5056 according to JIS) having a diameter of 200 mm was prepared. Ballard plate-making copper plating 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. This copper-plating surface is mirror-polished, the photosensitive resin is apply|coated to the grind|polished copper-plating surface, it dries, and a photosensitive resin film is formed. Next, use a laser to juxtapose the repetitions Figure 11 The pattern of the pattern shown by (a) is exposed to the photosensitive resin film, and it develops. Exposure and development with laser light were performed using Laser Stream FX (manufactured by Think Laboratory Co., Ltd.). The photosensitive resin film uses a positive-type photosensitive resin. Figure 11 In the pattern exposure shown in (a), the ratio of the project...

Embodiment A2

[0137] The photocurable resin composition GRANDIC 806T (manufactured by Dainippon Ink Chemical Industry Co., Ltd.) was dissolved in ethyl acetate to prepare a solution with a concentration of 50% by weight, and 5 parts by weight were added to 100 parts by weight of the curable resin component. A coating liquid was prepared using luciferin TPO (manufactured by BASF, chemical name: 2,4,6-trimethylbenzoyldiphenylphosphine oxide) as a photopolymerization initiator. The 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 was dried in a dryer set at 60° C. for 3 minutes. The film after drying was press-bonded with a rubber roll on the uneven surface of the mold obtained in Example A1 so that the photocurable resin composition layer was on the mold side, and the film was brought into close contact. In this state, from the TAC film side, the amount of light in terms of h-line is 200 mJ / cm ...

Embodiment B1

[0172] An object in which Ballard plate copper plating was performed on the surface of an aluminum roll (A5056 according to JIS) having a diameter of 200 mm was prepared. Ballard plate-making copper plating 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. This copper-plating surface is mirror-polished, the photosensitive resin is apply|coated to the grind|polished copper-plating surface, it dries, and a photosensitive resin film is formed. Next, use a laser to juxtapose the repetitions Figure 16 The pattern which the shown pattern consists of is exposed to the photosensitive resin film, and it develops. Exposure and development with laser light were performed using LaserStream FX (manufactured by Think Laboratory Co., Ltd.). The photosensitive resin film uses a positive-type photosensitive resin. Figure 16 In the pattern exposure shown, the ratio of the project...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
surface roughnessaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

PURPOSE: A manufacturing method of a mold and a manufacturing method of a glare-proof film are provided to prevent the degradation of contrast and the generation of glittering by forming a minute concavo-convex shape on the surface of a mold. CONSTITUTION: A copper electroplating or a nickel-plating is executed on the surface(2) of a material(1) for a mold. The surface plated is ground. A light resinous film(3) is formed by spreading a photosensitive resin on the ground side. A pattern is exposed to the light resinous film. The light resinous film exposing the pattern is developed. A concavo-convex is formed in the ground plating surface by etching using the developed film as the mask.

Description

technical field [0001] The present invention relates to a method for producing a mold having a fine concavo-convex shape on the 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] In image display devices such as liquid crystal displays, plasma display panels, Brown tube (cathode ray tube: CRT) displays, and organic electroluminescence (EL) displays, visibility is significantly impaired when external light is reflected on the display surface. In order to prevent the reflection of such external light, in televisions and / or personal computers where image quality is important, video cameras and / or digital cameras used outdoors where the ambient light is strong, mobile phones that display using reflected light, etc. The surface of the display device is provided with a film layer to prevent the reflection of external light. The film layer is ro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com