A black conductive paste composition, an anti-electromagnetic wave filter comprising the composition and a display

A technology of anti-electromagnetic wave and composition, which is applied in the direction of conductive materials, conductive materials, conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problems of partial open circuit or short circuit, stained line width, decrease of appearance characteristics of plasma display, etc.

Inactive Publication Date: 2009-10-21
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when patterns are formed with conventional paste compositions, blemishes or reduced line widths, partia

Method used

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  • A black conductive paste composition, an anti-electromagnetic wave filter comprising the composition and a display
  • A black conductive paste composition, an anti-electromagnetic wave filter comprising the composition and a display
  • A black conductive paste composition, an anti-electromagnetic wave filter comprising the composition and a display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4 and comparative example 1-2

[0122] According to the components and contents shown in Table 1 below, mix the acrylate polymer resin with monomer or oligomer, solvent, glass powder, conductive metal, black pigment and dispersant, stir at room temperature, and finally use three rollers to (3-roll) mill (mill), to manufacture the required black conductive paste composition for gravure offset printing.

[0123] [Table 1]

[0124]

[0125]In Table 1, the weight-average molecular weight of acrylate polymer resin is 15000, which is composed of methyl acrylate (methyl acrylate, MA), butyl methacrylate (butyl methacrylate, BM), hydroxyethyl methacrylate (hydroxyl ethyl methacrylate (HEMA) and methylmethacrylate (methylmethacrylate, MMA) are formed by copolymerization in parts by weight of 30:40:10:20, respectively.

[0126] Also, A is urethane acrylate, B is trimethylolpropane triacrylate modified ethylene oxide, C is trimethylolpropane triacrylate modified propylene oxide, and D is bisphenol A ethoxylated Di...

experiment example

[0129] Form anti-electromagnetic wave filter

[0130] By using the paste compositions prepared in Examples 1 to 4 and Comparative Examples 1 and 2, gravure offset printing was performed according to the pattern specification for the electromagnetic wave shielding filter.

[0131] i.e. by and as image 3 The same offset printing apparatus as shown, prints the paste composition onto a glass substrate to form a screen-like pattern. At this time, the line width of the mesh-like patterns is 30 μm, and the standard average pitch of the patterns is 300 μm.

[0132] Then, in the firing process, the paste composition is kept on the glass substrate for 20 minutes at a temperature of 500-540° C. to form a mesh pattern for an electromagnetic wave filter.

[0133] Characteristic evaluation of anti-electromagnetic wave filter

[0134] The dispersibility, printability and dryness of the anti-electromagnetic wave filter prepared using the paste compositions provided in Examples 1-4 and...

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Abstract

The invention relates to a black conductive paste composition, an anti-electromagnetic wave filter using the composition and a display with the filter; wherein the black conductive paste composition comprises: a) acrylic ester high-molecular resin; b) monomer or oligomer; c) solvent; d) glass powder; e) conductive metal; f) black pigment; with respective to the amount of the acrylic ester high-molecular resin and the monomer or the oligomer, the content of the monomer or the oligomer is 10-90 weight parts. The composition can be applied to a plasma display panel and the manufacture of the anti-electromagnetic wave filter to prevent electromagnetic wave and can be particularly applicable to the manufacturing process of anti-electromagnetic wave filter based on the intaglio offset method.

Description

Technical field: [0001] The present invention relates to an anti-electromagnetic wave filter suitable for use on displays such as plasma display panels, which can be used to prevent drying, improve the quality of patterns and printability, improve the efficiency of continuous processes, and prevent the decline in the appearance characteristics of plasma displays. Black conductive paste composition. The invention also relates to an anti-electromagnetic wave filter prepared by using the composition and a display with the anti-electromagnetic wave filter. Background technique: [0002] Recently, various displays have been developed. For example, a plasma display device (PDP), a liquid crystal display device (LCD) and an organic light emission display device (OLED) have been developed. Due to their thinness and light weight, these displays are widely used in many products that need to display images. [0003] On the other hand, various electronic components in the display emi...

Claims

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Application Information

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IPC IPC(8): C08F265/04C08F265/06C08F299/00C08K3/40C08K3/08C08K3/10H05K9/00H01J17/49B32B7/02B32B17/04G09F9/00H01B1/22
CPCC08K3/013C08K3/10H01B1/02H01B1/124H01B1/22H01J11/44H05K9/00
Inventor 田承勋卞景绿白娜英李宗旭郑粲潣朴赞硕
Owner DONGJIN SEMICHEM CO LTD
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