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Low refractive layer and anti-reflection film comprising same

A low-refraction and satisfying technology, applied in coatings, optics, instruments, etc., can solve the problems of interlayer adhesion (weakened interface adhesion, high production cost, and reduced alkali resistance of polymer films, etc., to achieve excellent optics and Mechanical properties, anti-glare effect

Active Publication Date: 2017-08-29
LG CHEM LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the method of forming a plurality of layers as described above has disadvantages that since the steps of forming the respective layers are performed separately, the interlayer adhesion (interfacial adhesion) is weakened, and thus the scratch resistance is poor and the production cost is high
However, according to this known method, since the alkali resistance of the polymer film is greatly lowered, there is a limitation of incompatibility with processes for producing polarizing plates and the like

Method used

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  • Low refractive layer and anti-reflection film comprising same
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  • Low refractive layer and anti-reflection film comprising same

Examples

Experimental program
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preparation example 1

[0132] Preparation Example 1: Preparation of Hard Coating Film 1 (HD1)

[0133] A salt-type antistatic hard coating solution (manufactured by KYOEISHA Chemical Co., Ltd., solid content: 50% by weight, trade name: LJD-1000) was coated on a triacetylcellulose film with a #10mayer rod and placed on the Dry at 90°C for 1 minute, then use 150mJ / cm 2 A hard coating film (HD1) with a thickness of 5 μm was prepared by irradiating with ultraviolet light.

preparation example 2

[0134] Preparation Example 2: Preparation of Hard Coat 2 (HD2)

[0135] 30 g of pentaerythritol triacrylate, 2.5 g of a high molecular weight copolymer (BEAMSET 371, Arakawa Corporation, epoxy acrylate, molecular weight: 40,000), 20 g of methyl ethyl ketone, and 0.5 g of a leveling agent (Tego wet270) were uniformly mixed. Then, 2 g of an acrylic-styrene copolymer having a refractive index of 1.525 (volume average particle diameter: 2 μm, manufactured by Sekisui Plastic) was added as fine particles to the mixture to prepare a hard coating composition. The hardcoat composition thus obtained was coated onto a triacetylcellulose film with a #10 mayer rod and dried at 90°C for 1 minute. Use 150mJ / cm 2 The dried product was irradiated with ultraviolet light to prepare a hard coating film (HD2) with a thickness of 5 μm.

preparation example 3

[0136] Preparation Example 3: Preparation of Polysilsesquioxane 1

[0137] Add 36.57 g (0.156 mol) of isooctyltrimethoxysilane, 23.34 g (0.094 mol) of 3-methacryloxypropyltrimethoxysilane, and 500 mL of methanol to a tank equipped with a nitrogen inlet tube, condenser, and stirring in a 1 L reactor and stirred at room temperature for 10 min. Then, tetramethylammonium hydroxide (280 g, 0.77 mol, 25% by weight in methanol) was added thereto, and a reaction was performed for 8 hours by raising the reactor temperature to 60° C. under a nitrogen atmosphere. After the reaction was completed, 15 g of polyhedral oligomeric silsesquioxane (POSS) substituted with isooctyl and methacryloxypropyl groups were obtained by column chromatography and recrystallization. Validation results of GP chromatography showed that the molar ratio of methacryloxypropyl to isooctyl substituted at the silicon of polysilsesquioxane (moles of methacryloxypropyl / isooctyl The number of moles) is about 0.6 to ...

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Abstract

The present invention relates to a low refractive layer and an anti-reflection film comprising same. The low refractive layer can exhibit both excellent optical properties, i.e. low reflectance and high light transmittance, and excellent mechanical properties, such as high abrasion resistance and scratch resistance, while having no adverse effect on the color of a polymer resin forming the low refractive layer. In particular, the low refractive layer can maintain said excellent physical properties, even after alkali treatment, due to excellent alkali resistance. Accordingly, in the case of being introduced to a display device, the low refractive layer can simplify the production process and is expected to significantly increase the production rate and output.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2015-0116260 filed on August 18, 2015 and Korean Patent Application No. 10-2016-0104409 filed on August 17, 2016 with the Korean Intellectual Property Office, The disclosure thereof is incorporated herein by reference in its entirety. [0003] The present invention relates to a low-refractive layer and an antireflection film comprising the low-refractive layer and a hard coat layer. Background technique [0004] Generally, a flat panel display device such as a PDP or LCD is equipped with an anti-reflection film to minimize reflection of light incident from the outside. [0005] As a method of minimizing the reflection of light, the following methods are known: a method of dispersing a filler such as inorganic fine particles to a resin and coating the filler on a base film to impart irregularities (anti-glare: AG coating); A meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/11G02B1/111
CPCG02B1/11G02B1/111G02B1/14C09D5/00C08G65/007
Inventor 金芙敬张影来张锡勋许殷奎边真锡
Owner LG CHEM LTD
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