Antiglare film, antireflection film, polarizing plate and image display device

An anti-reflection film, anti-glare film technology, applied in the field of anti-glare film, polarizer and image display device, anti-reflection film, can not bring optimal light interference, can not obtain uniform thickness, low reflection and anti-glare issues of sex

Inactive Publication Date: 2010-03-31
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when trying to coat the anti-reflection layer on the uneven surface of the anti-glare layer, uneven coating due to unevenness or repulsion due to coarse particles occurs, so that a uniform thickness cannot be obtained, and the optimum design cannot be achieved. Excellent light interference, as a result, the reflectivity may not decrease
For this reason, it is difficult to satisfy both low reflection and anti-glare properties

Method used

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  • Antiglare film, antireflection film, polarizing plate and image display device
  • Antiglare film, antireflection film, polarizing plate and image display device
  • Antiglare film, antireflection film, polarizing plate and image display device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0094]

[0095] Examples of the production method of the light-transmitting fine particles used in the present invention include a suspension polymerization method, an emulsion polymerization method, a soap-free emulsion polymerization method, a dispersion polymerization method, and a seed polymerization method, and any of these production methods may be used. It can be described by reference, for example, in Takayuki Ohtsu and Masaetsu Kinoshita, Kobunshi Gosei no Jikken Ho (Experimental Technique for the Synthesis of Polymer) , pp. 130 and pp. 146-147, Kagaku Dojin Sha, Gosei Kobunshi (Synthetic Polymer) , Vol.1, pp. 246-290, ibid. , Vol.3, pp. 1-108, Japanese Patents 2,543,503, 3,508,304, 2,746,275, 3,521,560 and 3,580,320, JP-A-10-1561, JP-A-7-2908, JP-A-5-297506 and JP-A -2002-145919 to carry out these methods.

[0096]

[0097] The binder polymer forming the matrix constituting the antiglare layer is not particularly limited, but is preferably a light-transm...

Embodiment 1

[0204] (Preparation of coating solution for anti-glare layer)

[0205] The coating liquid for the anti-glare layer used in this example is as follows.

[0206] Composition of coating solution 1 for anti-glare layer:

[0207] PET-30 30.0 parts by weight

[0208] DPHA 12.9 parts by weight

[0209] MX-150H 0.9 parts by weight

[0210] IRGACURE 127 1.0 parts by weight

[0211] SP-13 0.08 parts by weight

[0212] 40.0 parts by weight of methyl isobutyl ketone

[0213] Cyclohexanone 15.0 parts by weight

[0214] Composition of the coating solution 2 for the antiglare layer:

[0215] PET-30 48.4 parts by weight

[0216] MX-600 1.03 parts by weight

[0217] IRGACURE 127 1.5 parts by weight

[0218] SP-13 0.1 parts by weight

[0219] 30.0 parts by weight of methyl isobutyl ketone

[0220] 20.0 parts by weight of methyl ethyl ketone

[0221] Composition of the coating solution 3 for the antiglare layer:

[0222] PET-30 48.4 parts by weight

[0223] MX-300 1.03 parts by we...

Embodiment 2

[0343] (Coating of medium, high and low refractive index layers)

[0344] (Coating solution A for preparing the middle refractive index layer)

[0345] 3.0 parts by weight of a mixture of dipentaerythritol pentaacrylate and dipentaerythritol hexaacrylate (DPHA), 0.1 parts by weight of a photopolymerization initiator (IRGACURE 184, manufactured by Ciba Specialty Chemicals Corp.), 86.9 parts by weight of methyl isobutyl Ketone and 0.1 parts by weight of SP-13 were added to 10.0 parts by weight of ZrO-containing 2 Hard coating agent of fine particles (DESOLITE Z7404 [refractive index: 1.72, solid content concentration: 60% by weight, zirconia fine particle content: 70% by weight (calculated by solid content), the average particle diameter of zirconia fine particle: about 20nm , solvent composition: MIBK / MEK=9 / 1, manufactured by JSRCorp.]), and the resulting mixture was stirred. After sufficient stirring, the resulting solution was filtered through a filter made of polypropylene...

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Abstract

An antiglare film is provided and includes: a transparent support; and an antiglare layer containing a binder and a light-transmitting fine particle. The light-transmitting fine particle has an average particle diameter of 3 to 15 [mu]m, the antiglare layer has an average thickness smaller than the average particle diameter of the light-transmitting fine particle by 0.1 to 2.0 [mu]m, the antiglarelayer contains the light-transmitting fine particle in an amount of 1.0 to 3.0 weight % based on all solid contents of the antiglare layer. The antiglare layer has a surface having a [theta](1) of 60to 98.5%, wherein the [theta](1) is a ratio of a surface region of 0 DEG <=[theta]<=1 DEG in the surface when [theta] represents a tilt angle of an irregularity on the surface.

Description

[0001] This application is based on and claims priority from Japanese Patent Application No. 2008-249262 filed on September 26, 2008, the entire contents of which are hereby incorporated by reference. technical field [0002] The invention relates to an antiglare film, an antireflection film, a polarizer and an image display device. Background technique [0003] In various image display devices such as liquid crystal display (LCD), plasma display panel (PDP), electroluminescence display (ELD) and cathode ray tube display (CRT), antiglare film or antiglare antireflection The film is used on the display surface to prevent a decrease in contrast due to reflection of external light or disturbing reflection of an image. As image display devices are widely used in office or home environments, anti-glare properties need to be enhanced to prevent disturbing reflections of indoor fluorescent lamps or observers on display surfaces, and further improvement in display contrast in bright...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/11G02B5/30G02F1/1335B32B7/02G02B1/111G02B1/16G02B5/02G09F9/00
CPCG02B5/0226G02F1/133502G02B5/0294G02B1/111G02B5/0268G02B5/0278
Inventor 朝仓彻也胁阪大树
Owner FUJIFILM CORP
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