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Hard coating film, polarizing plate and image display device including the hard coating film

A hard coating and hard coating technology, applied in the direction of optics, coatings, optical components, etc., can solve problems such as display peeling, hard coating cracking, etc., to prevent interference fringes, prevent interface reflection, improve Effect of Lightfast Adhesion

Active Publication Date: 2015-07-29
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this case, the hardcoat may crack or show peeling over time, however, improved hardcoats that overcome these problems have yet to be disclosed

Method used

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  • Hard coating film, polarizing plate and image display device including the hard coating film
  • Hard coating film, polarizing plate and image display device including the hard coating film
  • Hard coating film, polarizing plate and image display device including the hard coating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6 and comparative example 1-4

[0060] A composition for forming a hard coat layer was prepared using the components given in Table 1 below.

[0061] Table 1

[0062]

[0063] After stirring the various hard coating compositions prepared in the above Examples and Comparative Examples for 1 hour, the compositions were applied on a transparent base film (80 μm, TAC) up to 7 μm using a Mayor bar (a gravure coater) thickness, then, dried at 70°C for 2 minutes, followed by passing at 520mJ / cm 2 Cured under ultraviolet light to prepare a hard coating with a hard coating.

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide a hard coating film which effectively prevents interfacial reflection and interference fringes and has enhanced visibility and mechanical strength by forming an interface by corrosion inside a light-transmitting substrate and a hard coating layer.SOLUTION: A hard coating film, and a polarizing plate and an image display device comprising the hard coating film are provided. The hard coating film comprises a transparent substrate and a hard coating layer which is formed on at least one surface of the transparent substrate and in which an interface is formed at a height corresponding to 5 to 50% of the total thickness of the coating layer from the boundary with the transparent substrate. The hard coating film effectively prevents interfacial reflection and generation of interference fringes and is improved in mechanical strength and visibility as well as in light-resistant adhesiveness and optical characteristics.

Description

technical field [0001] The invention relates to a hard coating film, a polarizing plate comprising the hard coating film, and an image display device, in particular to a hard coating film which prevents interface reflection and interference fringes and has excellent light-resistant adhesion, and a hard coating film comprising the hard coating film. Polarizing plate and image display device with quality coating film. Background technique [0002] For image display devices such as liquid crystal displays (LCDs), cathode ray tubes (CRTs), etc., it is necessary to reduce reflection of light radiated from external light sources while improving the display quality (ie, visibility) of the image display surface of the devices. On the other hand, disposing an optical laminate with a light-shielding film or an anti-reflection film (eg, an anti-reflection laminate) on a transparent substrate is generally used to improve visibility while reducing reflection of an image display surface o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/10G02B5/30G02F1/1335B32B7/02C09D5/00C09D201/00G02B1/14
CPCB32B7/02G02B1/11G02B1/14G02B5/3033G02F1/133528
Inventor 林巨山郑炳琁
Owner DONGWOO FINE CHEM CO LTD
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