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Electromagnetic wave-shielding film having near infrared shielding function and transparency function, optical filter and plasma display panel comprising the same

An electromagnetic wave and shielding film technology, which is applied in the direction of optical/shielding devices, magnetic/electric field shielding, electrical components, etc., can solve problems such as insufficient adhesion, difficulty in handling, and increased preparation costs, so as to reduce production costs and improve the preparation process. Effects of simplification and productivity improvement

Inactive Publication Date: 2009-09-09
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] If another functional film such as any one of an antireflection film, a near-infrared absorbing film, and a color compensation film is attached to the electromagnetic wave shielding film having a conductive pattern on its upper portion, since the conductive pattern, the electromagnetic wave shielding film and the other Insufficient adhesion of functional films to each other
[0007] In addition, since a thin air layer is formed due to the grooves of the electromagnetic wave shielding film and light is scattered due to the thin air layer, there is a problem that it is difficult to obtain a clear image
[0010] In addition, the known optical filter has problems in that since the functional film is prepared separately and then integrated by layering with an adhesive, it is difficult to perform the process, the production cost increases, and it is difficult to produce a thin PDP

Method used

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  • Electromagnetic wave-shielding film having near infrared shielding function and transparency function, optical filter and plasma display panel comprising the same
  • Electromagnetic wave-shielding film having near infrared shielding function and transparency function, optical filter and plasma display panel comprising the same
  • Electromagnetic wave-shielding film having near infrared shielding function and transparency function, optical filter and plasma display panel comprising the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0177] 69 g of a copolymer solution containing butyl acrylate (BA) / hydroxyethyl methacrylate (HEMA) dissolved in ethyl acetate, 0.06 g of V-63 (Epolin, INC) based on metal complexes, 0.14 g of Phthalocyanine-based 906B (Nippon Catalyst), 0.037 g of an isocyanate crosslinking agent, and 0.048 g of a silane coupling agent were added to 31 g of methyl ethyl ketone (MEK), followed by mixing with each other to prepare a coating solution.

[0178] The coating solution was applied onto the release substrate film to a thickness of 25 μm, and the release substrate was laminated with the other side of the release substrate to prepare a near infrared ray absorbing adhesive film.

[0179] The prepared film was applied on the electromagnetic wave shielding film to carry out the transparent treatment, and stored for 500 hours under the conditions of high temperature (80° C.) and high temperature and humidity (65° C., relative humidity: 96%), and then measured the permeability luminosity. r...

Embodiment 2

[0181] 69 g of a copolymer solution containing butyl acrylate (BA) / hydroxyethyl methacrylate (HEMA) dissolved in ethyl acetate, 0.06 g of V-63 (Epolin, INC) based on metal complexes, 0.14 g of Phthalocyanine-based 906B (Japan Catalyst), 0.014 g of porphyrin PD-319 (Mitsui Corporation), 0.037 g of isocyanate crosslinking agent and 0.048 g of silane coupling agent were added to 31 g of methyl ethyl ketone (MEK), and then mixed with each other to prepare coating stain solution.

[0182] The coating solution was applied onto the release substrate film to a thickness of 25 μm, and the release substrate was laminated with the other side of the release substrate to prepare a near infrared ray absorbing adhesive film.

[0183] The prepared film was applied on the electromagnetic wave shielding film to carry out the transparent treatment, and stored at high temperature (80° C.) and high temperature and humidity (65° C., relative humidity: 96%) for 500 hours, and then measured the light...

Embodiment 3

[0185] 69 g of a copolymer solution containing butyl acrylate (BA) / acrylic acid (AA) dissolved in ethyl acetate, 0.06 g of EP4445 (Epolin, INC) based on metal complexes, 0.14 g of phthalocyanine-based 910B (Japan catalyst), 0.137 g of an isocyanate crosslinking agent, and 0.021 g of a silane coupling agent were added to 31 g of methyl ethyl ketone (MEK), and then mixed with each other to prepare a coating solution.

[0186] The coating solution was applied onto the release substrate film to a thickness of 25 μm, and the release substrate was laminated with the other side of the release substrate to prepare a near infrared ray absorbing adhesive film.

[0187] The prepared film was applied on the electromagnetic wave shielding film to carry out the transparent treatment, and stored at high temperature (80° C.) and high temperature and humidity (65° C., relative humidity: 96%) for 500 hours, and then measured the light transmittance Spend. result in Figure 20 described in. E...

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Abstract

The present invention provides an electromagnetic wave-shielding film which includes a transparent substrate, an electromagnetic wave-shielding layer which includes a conductive pattern formed in at least a portion of the transparent substrate, and an adhesive transparency layer which is formed on the electromagnetic wave-shielding layer to fill a groove of the conductive pattern and contains a near infrared-absorbing dye, and an optical filter and a plasma display panel including the electromagnetic wave-shielding film.

Description

technical field [0001] The present invention relates to an electromagnetic wave shielding film, an optical filter and a plasma display panel including the electromagnetic wave shielding film, the electromagnetic wave shielding film including an adhesive transparent layer formed on the electromagnetic wave shielding layer to fill electromagnetic waves The trenches of the shielding layer are conductive patterns and contain near-infrared absorbing dyes. Background technique [0002] In general, a display is a common name for TVs and computer monitors, and includes a display assembly having a display panel for forming an image and a case supporting the display assembly. [0003] The display module includes a CRT (cathode ray tube) for forming images, a display panel such as an LCD (liquid crystal display) and a plasma display panel (plasma display panel, hereinafter referred to as "PDP"), and a drive circuit for driving the display panel substrate. The PDP may further include ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00
CPCH05K9/0096H01J11/44H05K9/00
Inventor 李修林朴相炫金正斗李渊权崔玹硕
Owner LG CHEM LTD
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