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Antiglare film and process for producing the same

An anti-glare film and anti-glare technology, applied in chemical instruments and methods, thin material processing, nonlinear optics, etc., can solve the problems of increasing the blackness of black display images, unable to form concave and convex shapes, and reducing reflected light, etc. Achieve the effect of inhibiting colorful, high anti-glare, and inhibiting whitening phenomenon

Inactive Publication Date: 2011-02-23
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in this method, the phase separation of the two components is strong, and the anti-glare film obtained by convection is dense because the interval between domains is narrow and there are few planar parts (sea parts (sea parts)). structure, therefore, the low-refractive index layer coated on the anti-glare film for the purpose of reducing reflected light cannot be formed along the concave-convex shape of the surface of the anti-glare film (or cannot be formed in a follow-up (tracking) manner), and It is difficult to further improve the blackness (black taste) of black display images (or images)

Method used

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  • Antiglare film and process for producing the same
  • Antiglare film and process for producing the same
  • Antiglare film and process for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0153] Acrylic resin [weight-average molecular weight: 25,000] having a polymerizable unsaturated group on the side chain, 3,4-epoxy ring added to some carboxyl groups of (meth)acrylic acid-(meth)acrylate copolymer A compound of hexenyl methacrylate; manufactured by Daicel Chemical Industry Co., Ltd., CYCLOMER-P (ACA) 320M, solid content 49.6% by weight, solvent: 1-methoxy-2-propanol (MMPG) (boiling point 119° C.)] 5.65 parts by weight, polymethyl methacrylate (PMMA) (weight average molecular weight 480000, manufactured by Mitsubishi Rayon (KK), BR88) 0.9 parts by weight, multifunctional acrylic UV curing monomer (dipentaerythritol hexaacrylate , Daicel-UCB (strain) manufacture, DPHA) 6.3 weight parts, and photoinitiator (Ciba Specialty Chemicals company manufacture, Irgacure184) 0.5 weight parts are dissolved in the following solvent: the methyl ethyl ketone (MEK) of 20.1 weight parts (boiling point 80° C.), 5.4 parts by weight of 1-butanol (BuOH) (boiling point 113° C.), 1.8...

Embodiment 2

[0155] A thermosetting fluorine-containing compound coating liquid (manufactured by Nissan Chemical Co., Ltd., LR204-6, solid content 1% by weight) was applied as a low refractive index layer on the antiglare film of Example 1 using a wire-wound paint scraper #5. ), after drying, it was thermally cured at 90° C. for 5 minutes to prepare a low-reflection anti-glare film.

Embodiment 3

[0157] An acrylic resin having a polymerizable unsaturated group on the side chain [3,4-epoxycyclohexenyl methacrylic acid added to some carboxyl groups of (meth)acrylic acid-(meth)acrylate copolymer Ester compound; manufactured by Daicel Chemical Industry Co., Ltd., CYCLOMER-P (ACA) 320M, solid content 49.6% by weight, solvent: 1-methoxy-2-propanol (boiling point 119° C.)] 5.24 parts by weight, poly Methyl methacrylate (PMMA) (weight average molecular weight 480000, manufactured by Mitsubishi Rayon Co., Ltd., BR88) 0.9 parts by weight, polyfunctional acrylic UV curing monomer (manufactured by Daicel-UCB Co., Ltd., DPHA) 6.5 parts by weight, And 0.5 parts by weight of a photoinitiator (manufactured by Ciba Specialty Chemicals, Irgacure 184) was dissolved in the following solvents: 36.8 parts by weight of MEK (boiling point 80° C.), and 7.73 parts by weight of 1-butanol (boiling point 113° C.). Incidentally, PMMA and the acrylic resin having a polymerizable unsaturated group do...

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Abstract

An antiglare film with which a display can be prevented from suffering reflection and inhibited from having a white blur in black images and can display high-contrast images including clear black areas. A solution which comprises a non-reactive (meth)acrylic resin having a weight-average molecular weight of 30,000-1,000,000, a (meth)acrylic resin having a weight-average molecular weight of 1,000-100,000 and having a polymerizable group, a polyfunctional (meth)acrylate, and a solvent having a boiling point of 100 DEG C or higher is applied. The solvent is volatilized to cause convection and thereby form stringy protrusions dispersedly in the surface in random directions. Thus, an antiglare film is obtained in which the areal proportion of the stringy protrusions in the whole surface is 50% or lower. The stringy protrusions may have an average height of 0.05-10 [mu]m and an average width of 0.1-30 [mu]m. The stringy protrusions may have a recessed part extending in the lengthwise direction.

Description

technical field [0001] The present invention relates to an anti-glare film and a preparation method thereof. The anti-glare film is used for displays for various high-definition images, and the display for high-definition images is used for image display of computers, word processors, televisions and the like. Background technique [0002] In recent years, for displays such as cathode ray tube display (CRT) display, liquid crystal display, plasma display, touch panel type input device, organic or inorganic EL (electroluminescent) display, FED (field emission display), When external light sources such as fluorescent lamps and sunlight are reflected on the display surface, the image becomes difficult to see due to the interference of the reflected light. That is, visibility (visibility) is remarkably deteriorated due to such reflection, and therefore, an antiglare layer for diffusing reflected light to a certain extent is provided on the display surface of various displays. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30G09F9/00G02F1/1335C08F290/12G02B5/02
CPCG02F1/133504G02B5/0294G02B5/0268C08L51/003C08J5/18C08F290/06C08F265/04G02B5/0221C08L33/04C08L33/08C08F265/06C08J2333/08C08F290/12C08L2205/02Y10T428/24355C09K2323/035C08L2666/04C08L2666/02
Inventor 林正树
Owner DAICEL CHEM IND LTD