Anti-glare film and polarizing plate provided with the anti-glare film

An anti-glare film and anti-glare layer technology, applied in optics, optical elements, polarizing elements, etc., can solve problems such as image degradation that cannot be clearly reflected, and surface roughness that cannot clearly reflect external light reflection. Anti-glare performance, improvement of image deterioration, excellent black effect

Active Publication Date: 2017-07-11
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in actual display devices, since the haze cannot clearly reflect the image degradation phenomenon caused by the reflection of external light, and the numerical value of the surface roughness cannot clearly reflect the reflection phenomenon of external light, these parameters are used in the evaluation The optical properties of the anti-glare film have limitations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of composition that is used to form antiglare layer mixes the urethane acrylate (Miwon business company, product: PU620) of 20 weight parts, the pentaerythritol triacrylate (Miwon business company, product: M340) of 20 weight parts by using stirring bar , 2 parts by weight of light-transmitting particles (acrylic-styrene copolymer, manufactured by SekisuiTech Polymer Co., Ltd., refractive index: 1.51, average particle diameter: 4.5 μm), 20 parts by weight of methyl ethyl ketone (Daejung Chemical and Metal Co., Ltd. ), 27 parts by weight of propylene glycol monomethyl ether (Daejung chemical and metal company), 2.5 parts by weight of photoinitiator (Siba company, product: I-184) and leveling agent (BYK chemical company, product: I-184) of 0.5 part by weight : BYK3550) and then filtered through a PP material filter.

[0047] The diffusible hard coating composition prepared above was coated on a 60 μm thick triacetate cellulose film to have a 3.8 μm thick resin, fol...

Embodiment 2

[0049] An antiglare film was produced by the same method as in Example 1 except that the resin thickness was 4.3 μm.

Embodiment 3

[0051] An antiglare film was produced by the same method as in Example 1 except that the resin thickness was 4.0 μm.

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PUM

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Abstract

The present invention relates to an antiglare film, and more specifically, to an antiglare film wherein the reflectance parameter (X) defined by (A / B)×100 is 5 to 20, wherein , A is defined as making light incident on the surface of the anti-glare film and using an integrating sphere to measure the light reflected in all directions except for the light reflected in the direction 8° from the normal to the surface of the anti-glare film B is defined as a value obtained by making light incident on the surface of the anti-glare film and measuring the reflectance (%) of light reflected in all directions using an integrating sphere.

Description

technical field [0001] The present invention relates to an antiglare film and a polarizing plate provided with the antiglare film. Background technique [0002] Image display devices include liquid crystal displays (LCDs), electroluminescence displays (ELs), plasma display panels (PDPs), field emission displays (FEDs), and the like. [0003] When these different types of image display devices are exposed to external light such as natural light or illumination light, the light incident on the surface of the image display device will be reflected and the contrast will be reduced, and the visibility will be reduced due to image reflection. . In addition, the flickering of the screen makes it difficult to recognize characters, which easily increases eye fatigue or induces headaches. [0004] In order to solve these problems, an antiglare film having a function of guiding diffuse reflection of light by surface protrusions to reduce reflection of light is mainly used, and the an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/30
CPCG02B5/0242G02B5/30
Inventor 林巨山金孝东李晟澈
Owner DONGWOO FINE CHEM CO LTD
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