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Hard film, and polarized plate and image display device including same

A hard coating, hard coating technology, applied in optics, coatings, optical components, etc., can solve the problems of hard coating cracking, showing peeling, etc., to prevent interface reflection, prevent interference fringes, improve The effect of lightfast adhesion

Active Publication Date: 2014-01-15
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 film, and polarized plate and image display device including same
  • Hard film, and polarized plate and image display device including same
  • Hard film, and polarized plate and image display device including same

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

The invention relates to a hard film (10), and a polarized plate and an image display device including the hard film. The hard film (10) comprises a transparent substrate (200), and a hard coating (100). The hard coating is coated on at least a surface of the transparent substrate (200), and is provided with an interface (110). The interface is at the height that a distance away from a boundary between the hard coating (100) and the transparent substrate (200) is 5% to 50% of total thickness of the coating, thereby effectively preventing interface reflection and interference fringe, improving mechanical strength, visibility, light resistant adhesive force, and optical property. The polarized plate and image display device are provided with the hard film (10).

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 Applications(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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