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Antiscraping optical film and use thereof

A technology of optical film and anti-scratch layer, applied in the field of optical film, can solve the problems of bead shedding, film warpage, poor resin coating, etc., and achieve good antistatic properties, protection of contact components, and high hardness characteristics. Effect

Inactive Publication Date: 2008-10-15
长兴光学材料(苏州)有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regrettably, the resin coating selected for this type of protective diffusion film in the prior art is not good, which is easy to cause the beads to fall off, and some of the film is warped, which affects its optical properties. Reduced the effect of using the light-concentrating film

Method used

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  • Antiscraping optical film and use thereof
  • Antiscraping optical film and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0074] 1. The first hard mask layer (diffusion layer)

[0075] Take a 250 ml glass bottle, and add solvent: 20 grams of toluene and 6 grams of methyl ethyl ketone into the glass bottle. Under high-speed stirring, add 3 grams of acrylic microparticles [MB30X-8, Japan Sekisui Chemical Co., Ltd.] with an average particle size of 8 μm, UV-curable resin: 2-hydroxyethyl methacrylate, methyl methacrylate, A total of 12 grams of monomer mixture of butyl acrylate and pentaerythritol triacrylate, thermosetting resin: 10 grams of acrylate resin [Eterac 7363-ts-50, Eternal company] (solid content about 50%), then add 1.0 grams of hardener [ Desmodur 3390, Bayer Company] (about 75% in solid content), 2.0 g of antistatic agent [GMB-36M-AS, Marubishi oilChem.Co., Ltd] (about 20% in solid content), photoinitiator: diphenylbenzene A total of 0.6 grams of the mixture of ketone and 1-hydroxycyclohexyl phenyl ketone was finally soaked into a coating with a solid content of about 40% and a total ...

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Abstract

The invention provides an anti-scratching optical membrane and its use. And it comprises a three-layered structure, where a transparent substrate is in the middle, and two hard cover layers are on and under the transparent substrate, respectively, the first hard cover layer on the substrate is a diffusion layer and the second on under the substrate is an anti-scratching layer, the top surface of the diffusion layer has a concave-convex structure, the bottom surface of the anti-scratching layer is a smooth surface, and its characters: selecting novel hard cover liquid to form hard cover layers on the substrate surfaces, and after curing, intensifying its hardness; the surface resistivities of the two hard cover layers are between 10<8> and 10<12> Ohm / sq, and according to the measurement with JIS K5400 standard method, the two hard cover layers both have hardness of pencil of 3H or above. And it has high hardness and can prevent being scratched in operation, and when used as a protective diffusion membrane for the backlight module of a display, can not damage the prism structure of a light gathering membrane.

Description

technical field [0001] The present invention relates to optical films, and more particularly to a scratch-resistant optical film with a hardened coating, especially a protective diffuser film applicable to liquid crystal displays. Background technique [0002] The liquid crystal panel itself does not emit light, so the backlight module as a source of brightness is an important component of the LCD display function, and the backlight module is very important for improving the brightness of the liquid crystal display. At present, the most economical and simple solution is to install various optical films in the backlight module. This method does not need to change any component design or consume extra energy, but it can improve the brightness of the LCD panel and make the light source the best. be utilized efficiently. figure 1 It is a simple schematic diagram of various optical films contained in the backlight module. Such as figure 1 As shown, the optical film contained i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/00G02B1/00
Inventor 许龙麟
Owner 长兴光学材料(苏州)有限公司
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