Coating composition for antireflection, antireflection film and method for preparing the same

An anti-reflection film, composition technology, applied in anti-reflection coatings, nanotechnology for materials and surface science, coatings, etc., can solve the problems of difficult to obtain wear resistance, poor wear resistance, resolution deterioration, etc. , to achieve the effect of reducing production cost, improving processing efficiency, excellent wear resistance and low refraction characteristics

Active Publication Date: 2010-10-06
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are problems in deteriorating resolution in high-resolution displays and degrading sharpness of images due to diffuse reflection
However, there is still the problem of increased manufacturing cost due to multi-layer coating
However, since the shape and size of the ultrafine particles should be uniform, and these particles should be uniformly dispersed on the substrate, it is difficult to implem

Method used

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  • Coating composition for antireflection, antireflection film and method for preparing the same
  • Coating composition for antireflection, antireflection film and method for preparing the same
  • Coating composition for antireflection, antireflection film and method for preparing the same

Examples

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Example Embodiment

[0095] The method for preparing an anti-reflection film according to the present invention includes the following steps:

[0096] a) Preparation of the above coating composition for anti-reflection;

[0097] b) coating the coating composition on the substrate to form a coating;

[0098] c) drying the coating to separate the low-refractive material and the high-refractive material; and

[0099] d) Curing the dried coating.

[0100] In step b), the substrate can be glass, plastic sheet and film, and its thickness is not limited. Examples of the plastic film may include cellulose triacetate film, norbornene cycloolefin polymer film, polyester film, polymethacrylate film, and polycarbonate film, but are not limited thereto.

[0101] In step b), the method for coating the coating composition can be, for example, bar coating, two-roll or three-roll reverse coating, gravure coating, die coating, microgravure coating There are various methods of comma coating and comma coating. The coating met...

Example Embodiment

[0111] Best practice

[0112] In the following, preferred embodiments are provided for a better understanding of the present invention. However, these examples are for illustrative purposes only, and are not intended to limit the present invention by these examples.

Example Embodiment

[0131] Example 1

[0132] 30 parts by weight of low-refraction-thermosetting material A and 70 parts by weight of high-refraction-UV curing material E were uniformly mixed to prepare a coating composition for antireflection.

[0133] A wire bar (No. 5) was used to coat the obtained composition on a cellulose triacetate film having a thickness of 80 μm. Dry the film in an oven at 60℃ for 2 minutes, and irradiate 1J / cm 2 Cured with a dose of UV, followed by thermal curing in an oven at 120°C for 1 day. The final coating thickness is 1μm, and the cross section is observed under a transmission electron microscope, which is shown in figure 1 in.

[0134] Reference figure 1 It was found that a high-refractive material layer and a low-refractive material layer were formed in a layer structure on the substrate. Compared with a single layer structure, when the layer structure is formed of materials having different refractive indexes, more effective reflectivity can be obtained.

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Abstract

The present invention provides a coating composition for ant iref lection that includes a low refractive material having a refractive index of 1.2 to 1.45 and a high refractive resin having a refractive index of 1.46 to 2, in which the difference in the surface energy between two materials is 5 mN/m or more; an ant iref lection film manufactured using the coating composition for ant iref lection; and a method of manufacturing the ant iref lect ion film. According to the present invention, the ant iref lect ion film having excellent abrasion resistance and antiref lection characteristic can be manufactured using a single composition by one coating process, thereby reducing manufacturing cost.

Description

technical field [0001] The invention relates to a coating composition for antireflection, an antireflection film prepared by using the coating composition for antireflection and a method for preparing the antireflection film. More specifically, the present invention relates to a coating composition for antireflection in which although a single-layer coating is formed by a one-step coating method using a coating composition containing resins having different refractive indices from each other, in the A single-layer coating also exhibits phase separation to simultaneously provide anti-reflection properties and abrasion resistance; an anti-reflection film prepared using the coating composition for anti-reflection; and a method for preparing the anti-reflection film. [0002] This application claims Korean Patent Application No. 10-2007-0115348 and No. 10-2007-0115329 filed on November 13, 2007 at the Korean Intellectual Property Office, Korean Patent Application No. 10-2007-0115...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/20C09D5/00C09D183/04C09D7/61C09D7/65
CPCC09D7/125G02B1/11G02B5/3033C08K3/16C08K7/22C09D5/006C09D183/04C09D183/08G02B1/111C09D7/42C09D7/61C09D7/65C09D7/67C09D7/68C09D5/00C09D133/08B82B3/00B82Y30/00
Inventor 尹汉植金惠珉金芙敬张影来
Owner LG CHEM LTD
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