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Optical filter for display panel and method of manufacturing same

A technology of display panels and filters, applied in the field of filters, can solve the problems of blurring and difficult to achieve lifelike images, etc.

Inactive Publication Date: 2011-01-26
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

[0068] The slurry composition was prepared as follows:

[0069] methacrylic acid (MA), benzyl methacrylate (BM), 2-hydroxyethyl (meth)acrylate (2-HEMA) and methyl (meth)acrylate ( MMA) 15 parts by weight of acrylate polymer resin formed in a weight ratio of 30:20:10:40; 10 parts by weight of terpineol (alpha-, beta-, gamma-terpineol mixture) as high boiling Solvent; The propylene glycol monomethyl ether propionate (PGMEP) of 10 weight parts is as low-boiling point solvent; The silver powder of 63 weight parts is as metal powder; With the organic dispersant of 2 weight parts comprising amino groups, DS-101 (San Nopco Korea, Ltd.) mixed and stirred at room temperature, and milled in a 3-roll mill to obtain the desired paste composition for printing.

[0070] The paste composition is gravure offset printed on the surface of the glass substrate to form an electromagnetic radiation shielding layer. Specifically, the above-prepared slurry composition was coated on a gravure flat p...

Embodiment 2 and comparative Embodiment 1 and 2

[0072] Using the components as listed in Table 1, an electromagnetic radiation shielding layer was formed by repeating Example 1.

[0073] Table 1

[0074]

Embodiment 3

[0076] As described below, prepare the figure 2 Filters schematically described in:

[0077] 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.

[0078] Next, the acrylic transparent adhesive is continuously coated on the silicone release layer (silicone rele...

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Abstract

An electromagnetic radiation-shielding layer 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 printing 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 t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20G02B1/11G02B1/111G02B1/14G02B5/22G09F9/00H05K9/00
CPCH01J11/10C03C2218/119H05K9/0096C03C17/007H01J2211/446C03C17/3676C03C2217/445H01J11/44G02B5/208G02B5/223H01J2211/448
Inventor 赵诚槿曹圭中
Owner DONGJIN SEMICHEM CO LTD