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Anti-dazzle film, anti-dazzle polarizer and image display apparatus

An anti-glare polarizer and anti-glare film technology, which is applied in polarizing elements, nonlinear optics, electronic equipment, etc. The effect of lowering, excellent visibility and durability, and high anti-glare performance

Inactive Publication Date: 2010-06-09
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when such a conventional anti-glare film is arranged on the surface of an image display device, there are problems such as whitening of the entire display surface due to scattered light, displaying a cloudy color, and easy occurrence of cloudiness.
[0004] In addition, in the case of high-definition image display devices, the pixel of the image display device interferes with the surface unevenness of the anti-glare film. class questions
In order to eliminate the glare, it has also been tried to set a refractive index difference between the adhesive resin and the filler dispersed therein to scatter the light, but if such an anti-glare film is used at a high temperature, the adhesive resin and the filler will be damaged. Deformation or deterioration causes the surface shape of the anti-glare film to change, causing problems such as reflection
In addition, even if there is no sparkle at the beginning of use, if it continues to be used at a high temperature, the difference in refractive index between the binder resin and the filler will change, so that the scattering between the binder resin and the filler will decrease. and there is a problem with flashing

Method used

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  • Anti-dazzle film, anti-dazzle polarizer and image display apparatus
  • Anti-dazzle film, anti-dazzle polarizer and image display apparatus
  • Anti-dazzle film, anti-dazzle polarizer and image display apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] (Preparation of Coating Solution A)

[0073] Each of the following components was dissolved in ethyl acetate at a solid content concentration of 60%, to prepare an ultraviolet curable resin composition A having a refractive index of 1.53 after curing.

[0074] Pentaerythritol triacrylate 60 parts

[0075] Polyfunctional urethane acrylate (reaction product of hexamethylene diisocyanate and pentaerythritol triacrylate) 40 parts

[0076] Next, with respect to 100 parts by weight of the solid content of the ultraviolet curable resin composition A, methyl methacrylate / styrene copolymer resin beads (weight-average particle diameter 7.43 μm, refractive index 1.55, dipped at 23° C. Volume change rate in ethyl acetate for 48 hours: 11%) 40 parts by weight, "Lucirin TPO" (manufactured by BASF Corporation) as a photopolymerization initiator 5 parts by weight, dilute with ethyl acetate so that the solid content rate is 60 %, thereby preparing a coating liquid A.

[0077] (Produc...

Embodiment 2

[0082] With respect to 100 parts by weight of the solid content of the above-mentioned ultraviolet curable resin composition A, add methyl methacrylate / styrene copolymer resin beads (weight-average particle diameter: 7.74 μm, refractive index: 1.55, immersed in 40 parts by weight of "Lucirin TPO" (manufactured by BASF Corporation) as a photopolymerization initiator, diluted with ethyl acetate to make the solid content rate 60 %, to prepare coating solution B.

[0083] Except having used this coating liquid B, it carried out similarly to Example 1, and obtained the antiglare film B which consists of the laminated body of the hard-coat layer which has uneven|corrugated surface, and a TAC film.

Embodiment 3

[0085]With respect to 100 parts by weight of the solid content of the above-mentioned ultraviolet curable resin composition A, methyl methacrylate / styrene copolymer resin beads (weight average particle diameter 7.63 μm, refractive index 1.55, immersed in 40 parts by weight of "Lucirin TPO" (manufactured by BASF Corporation) as a photopolymerization initiator, diluted with ethyl acetate to make the solid content rate 60% %, to prepare coating solution C.

[0086] Except having used this coating liquid C, it carried out similarly to Example 1, and obtained the anti-glare film C which consists of the laminated body of the hard-coat layer which has uneven|corrugated surface, and a TAC film.

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Abstract

The invention provides an anti-dazzle which has a resin base material film and a hard coating layer laminated on the resin base material film surface and having micro concavo-convex shapes on the surface; the hard coating layer is made of a light transparent resin with at least one kind of resin particles dispersed therein; the hard coating layer has a surface haze of 1%-10% and an inside haze of 10%-20%; the volume change rate of the resin particles is above 10% when dipped in vinyl acetate for under 23 degrees centigrade for 48 hours. And the invention further provides an anti-dazzle polarizer and an image display apparatus using the anti-dazzle film.

Description

technical field [0001] The present invention relates to an antiglare (antiglare) film that exhibits excellent antiglare performance, does not cause white turbidity, does not cause glitter (glittering) when applied to an image display device, and has excellent durability, and an antiglare film using the antiglare film. Glare polarizer and image display device. Background technique [0002] In image display devices such as liquid crystal displays, plasma display panels, CRT displays, and organic electroluminescent (EL) displays, if external light is reflected on the display surface, the visibility is significantly impaired. In the past, in order to prevent the reflection of such external light, in terms of TVs, personal computers, video cameras used outdoors where the intensity of external light is strong, digital cameras, and mobile phones that use reflected light to display, image display devices The surface is provided with a film layer to prevent external light from being...

Claims

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Application Information

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IPC IPC(8): G02B1/11G02B5/30G02F1/1335
CPCB32B3/30B32B7/023B32B27/08B32B2457/202G02B5/02G02F1/1335
Inventor 古谷勉宫本浩史神野亨
Owner SUMITOMO CHEM CO LTD
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