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Composition for antireflection film, antireflection film formed therefrom, polarizing plate comprising same, and optical display device comprising same

An anti-reflection film and composition technology, applied in optics, optical elements, nonlinear optics, etc., can solve the problems of reducing the reflectivity of the anti-reflection film, the complexity of the anti-reflection film, and the reduction of the reflectivity of the anti-reflection film.

Active Publication Date: 2019-06-21
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the antireflection film manufactured using this method is composed of three coating layers, leading to complexity in the manufacture of the antireflection film
In the anti-reflection film, the absence of the surface hardening layer leads to deterioration of hardness and impact resistance, and the absence of the high-refractive index layer limits the decrease in the reflectivity of the anti-reflection film
Increasing the proportion of inorganic hollow particles in the low-refractive index layer to reduce the reflectivity of the anti-reflection film, although the reflectivity is reduced, it is still difficult to apply due to the deterioration of mechanical properties

Method used

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  • Composition for antireflection film, antireflection film formed therefrom, polarizing plate comprising same, and optical display device comprising same
  • Composition for antireflection film, antireflection film formed therefrom, polarizing plate comprising same, and optical display device comprising same
  • Composition for antireflection film, antireflection film formed therefrom, polarizing plate comprising same, and optical display device comprising same

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0117] Preparation Example 1: Preparation of Formula 1a

[0118] (1) Prepare a solution by diluting 2.11g (10mmol) phenylenephosphonothiodichloride in 30mL tetrahydrofuran (THF), cool the solution to 0°C with an ice bath, and then add 1.14g (11mmol) triethyl Amine solution. Next, a solution was prepared by diluting 1.1 g (10 mmol) of thiophenol in 10 mL of THF, and this solution was slowly added to the resulting solution using a dropping funnel. Keep the resulting solution at 0°C, add 1.14 g (11 mmol) triethylamine to the resulting solution, and slowly add 1.25 g (10 mmol) of 4-aminobenzenethiol in 6 mL of THF using a dropping funnel Solutions prepared by dilution. After the addition was complete, the ice bath was removed and the resulting solution was stirred for about 2 hours. After the reaction was completed, the resulting solution was filtered to remove the amine salt, and then the excess solvent was distilled off under reduced pressure. Then, 100 mL of ethyl acetate (...

preparation Embodiment 2

[0124] Preparation Example 2: Preparation of Formula 1b

[0125] (1) A compound represented by formula B was prepared by the same method as in Preparation Example 1 except that 1.26 g (10 mmol) of 4-hydroxybenzenethiol was used instead of 4-aminobenzenethiol. by column chromatography (SiO 2 , ethyl acetate:hexane=1:4) isolated the final compound {colorless oil, yield: 72%, refractive index: 1.69, 1 H-NMR (300MHz, CDCl 3 ): δ7.99-7.91 (m, 2H), 7.52-7.35 (m, 6H), 7.31-7.23 (m, 5H), 6.74 (dd, J=1.5, 6.6Hz, 2H)}.

[0126] [Formula B]

[0127]

[0128] (2) The compound represented by Formula 1b was prepared by the same method as in Preparation Example 1 except that 2.19 g (5.8 mmol) of the compound represented by Formula B was used instead of the compound represented by Formula A. by column chromatography (SiO 2 , ethyl acetate: hexane = 1:5) isolated the final compound {colorless oil, yield: 78%, refractive index: 1.685, 1 H-NMR (300MHz, CDCl 3 ):δ8.00-7.92(m,2H),7.53-7....

preparation Embodiment 3

[0131] Preparation Example 3: Preparation of Formula 1c

[0132] A solution prepared by diluting 25.04 g (200 mmol) of 4-aminobenzenethiol in 400 mL of THF was cooled to 0° C. using an ice bath, and then 21.3 g (210 mmol) of triethylamine was added. The resulting solution was kept at 0° C., and 21.1 g (100 mmol) of phenylenephosphonothiodichloride was diluted in 200 mL of THF to prepare a solution, which was slowly added to the resulting solution using a dropping funnel. After the addition was complete, the ice bath was removed and the resulting solution was stirred for about 2 hours. After the reaction was completed, the resulting solution was filtered to remove the amine salt, and cooled to 0° C., and then 21.3 g (210 mmol) of triethylamine was added to the resulting solution. Then, a solution prepared by diluting 18.6 g (205 mmol) of acryloyl chloride in 100 mL of THF was slowly added to the resulting solution, followed by stirring at 0° C. for 1 hour. After the reaction ...

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Abstract

Provided are: a composition for an antireflection film, the composition comprising a compound of chemical formula 1, a UV curable compound, an antistatic agent, and an initiator; an antireflection film formed therefrom; a polarizing plate comprising the same; and an optical display device comprising the same.

Description

technical field [0001] The present invention relates to a composition for an antireflection film, an antireflection film formed from the composition, a polarizing plate comprising the same, and an optical display device comprising the same. Background technique [0002] Optical display devices are typically exposed to external light in use. The external light incident on the optical display device will cause the display quality of the screen of the optical display device to degrade. Therefore, optical display devices generally use anti-reflection films. [0003] Typically, an antireflection film has a structure in which low-refractive-index layers and high-refractive-index layers are alternately stacked on a base layer. Anti-reflection films generally reduce reflectance by lowering the refractive index of the low-refractive index layer. [0004] Since the antireflection film is placed on the outer edge of the optical display device, it is desired that the antireflection f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/5398C08F290/06C08F20/34C08F2/44C08J5/18G02F1/1335G02B1/11G02B5/30
CPCC08F2/44C08F20/34C08F290/06C08J5/18C08K5/5398G02B1/11G02B5/30G02F1/1335C08F290/067C08K2201/017G02B5/305
Inventor 朴世铉林亨泰赵成昕闵庆晙吴釜根
Owner SAMSUNG SDI CO LTD
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