Coating composition for forming low-refractive-index layer, antireflective film using the same, and image display device including the antireflective film

A coating composition, low refractive index layer technology, applied in anti-reflection coatings, coatings, instruments, etc., can solve problems such as other processes, coating solution problems, etc.

Active Publication Date: 2009-08-19
CHEIL IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods make it possible to form a coating film with high antifouling properties and scratch resistance, they have disadvantages in that an additional process is required after preparing the coating solution, and in addition, the coating solution causes problems when stored for a long period of time

Method used

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  • Coating composition for forming low-refractive-index layer, antireflective film using the same, and image display device including the antireflective film
  • Coating composition for forming low-refractive-index layer, antireflective film using the same, and image display device including the antireflective film
  • Coating composition for forming low-refractive-index layer, antireflective film using the same, and image display device including the antireflective film

Examples

Experimental program
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Effect test

preparation Embodiment 1 to 18

[0088] Preparation Examples 1 to 18: Preparation of Coating Solution for Formation of Low Refractive Index Layer

[0089] As the fluorine compound of Chemical Formula 1, R represented by (a) in Chemical Formula 2 is used f and have R represented by (e) in Chemical Formula 2 f (Preparation Examples 1-6), the fluorine compound of Chemical Formula 1 and the fluorine compound of Chemical Formula 3 (Preparation Examples 7-18) were used. As shown in Table 1 below, reactive silicon compounds and (meth)acrylate compounds were used, an example of which is urethane acrylate oligomer (Ebecryl 5129, available from SK-UCB). The various components were dissolved in a methyl ethyl ketone solvent and then mixed, after which the solid content of the composition was controlled to 5 parts by weight using a solvent mixture of methyl ethyl ketone and methyl isobutyl ketone. A photoinitiator, Irgacure 127 (commercially available from Ciba-geigy), was added in an amount of 5 parts by weight base...

Embodiment 1 to 12

[0090] Embodiment 1 to 12: the making of anti-reflection film

[0091] 1) Substrate

[0092] As a substrate, a PET film (A4300, available from Toyobo) having a thickness of 100 mm was used.

[0093] 2) Formation of hard coating

[0094] 30 parts by weight of urethane acrylate oligomer (Ebecryl 5129, available from SK-UCB) and 20 parts by weight of dipentaerythritol acrylate (A-400, available from Nippon Kayaku) with 25 parts by weight of each of Mix methyl ethyl ketone and toluene. A photoinitiator, Irgacure 184 (available from Ciba-geigy), was added in an amount of 1 part by weight based on the total weight of the solid content of the composition.

[0095] Use a #12 bar as a bar applicator to form a coating film, dry at 80°C for 2 min to remove the solvent, and then irradiate at 300mJ / cm 2 Cured by UV light.

[0096] 3) Formation of high refractive index layer

[0097] A dispersion of tin oxide (available from Catalysts & Chemicals Ind Co. Ltd.), wherein tin oxide par...

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Abstract

Disclosed are a coating composition for forming a low-refractive-index layer, an antireflective film using the same, and an image display device including the antireflective film. In detail, the invention provides a coating composition including a fluorine compound, a reactive silicon compound, a (meth)acrylate compound, a polymerization initiator, and a solvent, an an not tireflective film using the same, and an image display device including the antireflective film. Using the coating composition, an antireflective film having low reflectance and high transmittance and exhibiting a sufficient antifouling property and high durability, can be provided, along with an image display device including the film.

Description

technical field [0001] The present invention generally relates to a coating composition for forming a low-refractive index layer, an antireflection film using the same, and an image display device including the antireflection film, and more particularly, to a coating for forming a low-refractive index layer Composition comprising a fluorine compound, an active silicon compound, a (meth)acrylate compound, a polymerization initiator, and a solvent, an antireflection film using the above coating composition, and an image display device comprising the antireflection film . Background technique [0002] Today, the use of display devices is widespread, and generally representative display devices are LCD (Liquid Crystal Display), PDP (Plasma Display Panel), CRT (Cathode Ray Tube) or ELD (Electro Luminescence Display). Therefore, the display device should have abrasion resistance and antifouling properties on its surface, and furthermore, should have such properties as to prevent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D4/02C09D133/10C09D183/04C08L27/12C08L33/10C08L83/04G02B1/10G02B1/11C08F20/22
CPCC01B33/14C08J5/18C08L83/06C09D4/00C09D5/006C09D7/40G02F1/13
Inventor 成允贞姜景求林亨泰李莹哲
Owner CHEIL IND INC
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