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Anti-glare film, anti-glare polarizing plate, and image display device

An anti-glare film, polarizing plate technology, applied in polarizing elements, nonlinear optics, coatings, etc., can solve the problem of difficulty in achieving high contrast, and achieve the goal of preventing the reduction of visibility, excellent visibility, and excellent anti-glare. glare performance effect

Inactive Publication Date: 2010-09-15
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even with these anti-glare films, especially when applied to high-definition image display devices, it is difficult to achieve high contrast

Method used

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  • Anti-glare film, anti-glare polarizing plate, and image display device
  • Anti-glare film, anti-glare polarizing plate, and image display device
  • Anti-glare film, anti-glare polarizing plate, and image display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0186] (A) Production of metal molds for embossing

[0187] An iron roll having a diameter of 200 mm (STKM13A of JIS) on the surface of which Ballard copper plating (Ballard copper plating) was applied was prepared. Ballard copper plating consists of copper plating layer / thin silver plating layer / surface silver plating layer, and the overall thickness of the plating layer is about 200 μm. The surface of the copper-plated layer was mirror-polished, and further, using a sandblasting device (manufactured by Fuji Manufacturing Co., Ltd.), zirconia microbeads "TZ-B125" (trade name, average particle diameter) produced by Tosoh Corporation were 125μm), the amount of microbeads used is 6g / cm 2 (Roller surface area per 1cm 2 The amount used, hereinafter referred to as "blasting amount"), the blasting pressure is 0.05MPa (gauge pressure, the same below), the distance from the nozzle spraying microbeads to the metal surface is 600mm (hereinafter referred to as "blasting distance") ) c...

Embodiment 2～5

[0197] The refractive index and particle size (meaning the weight average particle size; the same below) of the methyl methacrylate / styrene copolymer resin beads dispersed in the light diffusion layer were changed as shown in Table 1, except that It carried out similarly to Example 1, and produced the antiglare film which consists of the laminated body of a hard-coat layer and a resin base film.

Embodiment 6 and 7

[0221] As the resin base film, a resin base film of a two-layer structure in which a light-diffusing layer (thickness 50 μm) containing fine particles and a transparent resin layer (thickness 30 μm) shown in Table 5 were laminated was used. It carried out similarly to Example 1, and produced the antiglare film which consists of the laminated body of a hard-coat layer and a resin base film. Here, the antiglare film is produced in the lamination order of transparent resin layer / light diffusion layer / hard coat layer.

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Abstract

Disclosed is an anti-glare film comprising a resin base film (101a, 101b) and a hard coat layer (102a, 102b) arranged on the surface of the resin base film (101a, 101b) and having a surface with a fine recessed and projected structure. The resin base film (101a, 101b) has a multilayer structure including at least one transparent resin layer (103a, 103b) composed of a transparent resin, and at least one light diffusion layer (104a, 104b) containing a transparent binder resin and a fine particle (105a, 105b) having a refractive index different from that of the transparent binder resin. Also disclosed are an anti-glare polarizing plate using such an anti-glare film, and an image display device. The resin base film (101a, 101b) has an internal haze value of not less than 5% but not more than 30%, and the hard coat layer (102a, 102b) has a surface haze value of not less than 0.5% but not more than 15% and an internal haze value of not more than 2%.

Description

technical field [0001] The present invention relates to an antiglare (antiglare) film which exhibits excellent antiglare performance without being whitish (Japanese original: 白ちやけ) and does not generate flare (Japanese original: ギラツキ) when applied to an image display device, Shows high contrast and imparts good sharpness. Moreover, this invention also relates to the antiglare polarizing plate and image display apparatus which used this antiglare film. Background technique [0002] Image display devices such as liquid crystal displays, plasma display panels, Braun tube (cathode ray tube: CRT) displays, organic electroluminescent (EL) displays, etc. Its visibility is significantly impaired. Conventionally, in order to prevent such external light projection, in TVs and personal computers that value image quality, video cameras and digital cameras used outdoors where the external light is strong, and mobile phones that use reflected light to display, image display devices The...

Claims

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Application Information

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IPC IPC(8): G02B5/02B32B27/30G02B1/10G02B1/11G02B5/30G02F1/1335
CPCG02B5/0278G02F1/133502G02B5/0242
Inventor 森美穗古谷勉一木直树齐藤贵雄赵成祐渡边康弘
Owner SUMITOMO CHEM CO LTD
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