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Optical filter for display panel and method of manufacturing same

A display panel and optical filter technology, applied in the field of optical filters, can solve problems such as blurring and difficulty in achieving lifelike

Inactive Publication Date: 2010-12-15
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, use such as figure 1 The conventional mesh electromagnetic radiation shielding filter shown is too blurry to achieve a lifelike image

Method used

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  • Optical filter for display panel and method of manufacturing same
  • Optical filter for display panel and method of manufacturing same
  • Optical filter for display panel and method of manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] The slurry composition was prepared as follows:

[0067] Composed of methacrylic acid (MA), benzyl methacrylate (BM), 2-hydroxyethyl (meth)acrylate (2-HEMA) and methyl (meth)acrylate (MMA) by 30:20: 15wt% acrylate polymer resin (wherein the weight average molecular weight is 25,000) of 10:40 weight ratio composition; By M310 (MiwonCo., Korea), DPHA (Japan Chemical Co., Ltd.) and U 108A (Shin- NakamuraChemical, Co., Ltd,) 10wt% crosslinkable oligomer composed in a weight ratio of 1:2:1; 2wt% I-107 (Ciba Specialty Chemicals) as a photopolymerization initiator; 71wt% Silver powder as a metal powder; mixed with 2 wt % organic dispersant containing amine groups: DS-101 (San Nopco Korea, Ltd.) and stirred at room temperature, then milled in a 3-roll mill to obtain the obtained A desired slurry composition for printing, wherein wt% is based on the total weight of the composition.

[0068] The paste composition is gravure offset printed on the surface of the glass substrate t...

Embodiment 2

[0070] The electromagnetic radiation shielding layer was formed using the same procedure as in Example 1, except that the acrylate polymer and the crosslinkable oligomer were used in amounts of 10 and 15 wt%, respectively, based on the total weight of the composition.

Embodiment 3

[0074] Prepared as follows in figure 2 Filters shown schematically in .

[0075] First, a hard coat layer, a zirconia-based film having a high refractive index and a fluorosiloxane-based film having a low refractive index were sequentially laminated on a polyester film by a wet coating method to obtain an antireflection layer. On the other hand, 300 g of poly(methyl methacrylate) was completely dissolved in 1,000 ml of methyl ethyl ketone (MEK), and 100 mg of octaphenylporphyrazine and 150 mg of IFG022 (Japan Chemical Co., Ltd. ) dissolved in it. Then, a solution of 120 mg of acridine orange (Aldrich Chemical Co., Ltd.) in 50 ml of isopropyl alcohol was gradually added thereto, and then the resulting solution was coated on a biaxially stretched On the film, a NIR-blocking and selective light-absorbing layer (dry thickness: about 5 μm) is obtained.

[0076] Next, the acrylic transparent adhesive was continuously coated on the silicone release layer (silicone release layer) ...

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Abstract

The present invention discloses an electromagnetic radiation-shielding layer that included in an optical filter is formed by a printing process, thereby making it possible to manufacture an optical filter having good characteristics using a simple process.

Description

technical field [0001] The present invention relates to an optical filter for a display panel and a method for preparing the optical filter. More particularly, the present invention relates to an optical filter for a plasma display panel (PDP), in which an electromagnetic radiation shielding layer is directly formed on a glass substrate by a gravure offset method. Background technique [0002] Display panels are generally equipped with filters capable of blocking electromagnetic radiation and near-infrared rays (NIR) that adversely affect human health and cause malfunctions of electronic equipment, among other components. [0003] Filters currently available for plasma display panels (PDPs) for blocking harmful electromagnetic radiation can generally be divided into three categories: i) ) on a substrate film and patterning the copper film by etching, ii) fibers prepared by processing metal fibers or metal-coated organic fibers on the substrate film and patterning the fibers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20
CPCG02B5/208B32B27/08C08J2300/00C08L101/00G02B1/04G02B5/223G02F1/133512H01J11/44H01J2211/442H01J2211/446H01J2211/448
Inventor 赵诚槿姜熏求
Owner DONGJIN SEMICHEM CO LTD