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Adhesive film functionalizing color compensation and near infrared ray (nir) blocking and plasma display panel filter using the same

A display panel, near-infrared technology, applied in film/sheet adhesive, optical/shielding coating applications, instruments, etc., can solve unsatisfactory durability, dye reduction, and no near-infrared absorption Membrane near-infrared blocking efficacy and other issues

Active Publication Date: 2006-05-10
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, Korean Laid-Open Patent No. 2002-0055410 makes no mention of the adhesive structure and composition, and Korean Laid-Open Patent No. 2004-0049280 makes no mention of the near-infrared blocking effect of the near-infrared absorbing film.
And Japanese Laid-Open Patent No. 2001-207142 does not propose cyanine-based NIR dyes and cyanine-based neon-cutting dyes, but poor heat resistance and light resistance occur when cyanine dyes are used alone
[0013] Also, the color compensation film and the near-infrared ray blocking film prepared according to conventional methods show differences in durability at high temperature and high humidity depending on the kind of adhesive, coating conditions, etc.
In addition, it is expensive and inefficient to laminate such films to make PDP filters
Therefore, attempts have been made to develop multifunctional adhesive layers such as an adhesive layer including a neon-cutting layer and an adhesive layer including a near-infrared ray blocking layer, but the durability exhibited under high temperature and high humidity is not satisfactory

Method used

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  • Adhesive film functionalizing color compensation and near infrared ray (nir) blocking and plasma display panel filter using the same
  • Adhesive film functionalizing color compensation and near infrared ray (nir) blocking and plasma display panel filter using the same
  • Adhesive film functionalizing color compensation and near infrared ray (nir) blocking and plasma display panel filter using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Membrane Preparation Including Near Infrared Blocking Dyes

[0077] The butyl acrylate (BA) / hydroxyethyl methacrylate (HEMA) copolymer solution of 100 parts by weight (15.5wt%) is dissolved in the ethyl acetate of 84.5ml, and 0.05 parts by weight of chemical formula 4 is represented as nearly Diimonium dye (CIR1081, JapanCarlit Co.) of infrared ray retarding dye, 0.05 parts by weight of T-39M as an isocyanate crosslinking agent, and 0.07 parts by weight of T-789J as a silane coupling agent were added to 45 parts by weight of methyl ethyl ketone (MEK), and then mixed to obtain a coating solution. The coating solution was applied onto the base film to a thickness of 23 μm, thereby obtaining a multifunctional adhesive film.

[0078] Durability was tested as above. The results are given in Table 1 below.

[0079] Visible area transmittance (%)

[0080] As can be seen from Table 1, the adhesive film exhibited excellent transmittance maintenance in the visible ...

Embodiment 2

[0082] An adhesive film was prepared in the same manner as in Example 1, except that a phthalocyanine dye represented by Chemical Formula 5 (IP12, Japan catalyst Co.) was used as a near-infrared ray retarding dye.

Embodiment 3

[0084] Prepared in the same manner as in Example 1, except that butyl acrylate / acrylic acid copolymer solution was used instead of butyl acrylate (BA) / hydroxyethyl methacrylate (HEMA) copolymer solution as the acryl-based adhesive sticky film.

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PUM

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Abstract

The present invention relates to an adhesive film functionalizing color compensation and near infrared ray blocking and a plasma display panel filter employing the same. The present invention provides a multifunctional adhesive film for a plasma display panel comprising an acryl-based adhesive and a near infrared ray blocking dye. The present invention also provides a multifunctional adhesive film for a plasma display panel comprising an acryl-based adhesive and a neon-cut dye. The adhesive film may further comprise a near infrared ray blocking dye. The multifunctional adhesive film of the present invention has superior durability at high temperature and humidity with little transmittance change and superior thermal stability. When further comprising a near infrared ray blocking dye, it exerts both color compensation and near infrared ray blocking performances. Because the film has superior adhesivity in itself, an additional adhesive layer is unnecessary, which simplifies the manufacturing process of a plasma display panel filter and a plasma display panel.

Description

[0001] Refer to related patents [0002] This application claims priority to Korean Patent Application No. 10-2004-0011798 filed on February 23, 2004 with the Korean Intellectual Property Office and Korean Patent Application No. 10-2005-0014754 filed on February 23, 2005, and is hereby Use it as a reference. technical field [0003] The present invention relates to an adhesive film having color compensation such as neon-cut and near-infrared blocking functions and a plasma display filter comprising the adhesive film, and more particularly to Adhesive film having superior durability, thermal stability, and adhesiveness with little change in transmittance, and plasma display filter using the film. Background technique [0004] Recently, a liquid crystal display panel (PDP) has been recognized as a main flat display panel providing a wide screen. [0005] So far, a liquid crystal display panel capable of providing a screen with a width of about 70 inches has been developed. ...

Claims

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Application Information

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IPC IPC(8): C08F220/00C09J7/02C09J11/06C09J133/00C09J133/04G02B5/00G03F7/00G09F9/00
CPCH01J11/44G02B5/223G02B5/208H01J9/205H01J2211/448H01J2211/444
Inventor 崔玹硕朴相炫李渊权黄仁皙金正斗赵显珠李东郁
Owner LG CHEM LTD
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