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Black pasty composition and plasma display panel of black pattern formed therewith

A technology of plasma and composition, applied in the field of black paste composition, can solve the problems of unsatisfactory characteristics, increased yellowness, easy yellowing and the like

Inactive Publication Date: 2009-01-21
TAIYO INK MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the black matrix is ​​not made on ITO, which is difficult to turn yellow, but on glass that is easy to turn yellow, even if there is a small amount of silver in the black paste, the glass substrate and dielectric are easily turned yellow by the diffusion of silver. , which tends to greatly increase the overall yellowness of the screen
Therefore, the black paste containing silver powder cannot satisfy the characteristics required as a black matrix material

Method used

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  • Black pasty composition and plasma display panel of black pattern formed therewith
  • Black pasty composition and plasma display panel of black pattern formed therewith
  • Black pasty composition and plasma display panel of black pattern formed therewith

Examples

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Embodiment

[0068] The present invention is specifically described below in conjunction with the examples, but the present invention is not limited to the following examples. "Parts" in the following descriptions are all parts by weight unless otherwise specified.

Synthetic example 1

[0070] In a flask equipped with a thermometer, a stirrer, a dropping funnel, and a reflux cooler, fill methyl methacrylate and methacrylic acid in a molar ratio of 0.87:0.13, add solvent dipropylene glycol monomethyl ether, catalyst azobis Isobutyronitrile was stirred at 80° C. for 2 to 6 hours under a nitrogen atmosphere to prepare the organic binder-A as a resin solution. The copolymer resin in the organic binder-A has a weight average molecular weight of about 10,000 and an acid value of 74 mgKOH / g.

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Abstract

PURPOSE: To provide a black paste component having low contact resistance between a white layer part of a bus electrode, having a dual layer structure of white layer and black layer, and a transparent electrode (ITO layer) after calcination, and high degree of blackness of a panel, capable of forming a calcinated layer without yellowing. CONSTITUTION: A fundamental first mode of a photo-curing component is a black paste component used for a black pattern of a plasma display panel containing (A) heat resistant black pigment, (B) conductive powder except silver, and (C) organic binder. The second mode contains (D) photopolymerizing monomer and (E) start of photopolymerization in addition to the above components. Further, the third mode contains (E) inorganic fine particles in addition to the above components.

Description

technical field [0001] The present invention relates to a black paste composition useful for forming fine electrode circuits and black matrices on the front substrate of a plasma display panel (hereinafter abbreviated as PDP). A paste composition, and a black layer (lower layer) for forming bus electrodes having a white and black two-layer structure, and a PDP equipped with a front substrate forming a black matrix. Background technique [0002] PDP is a flat display panel that displays images and information by using luminescence generated by plasma discharge, and can be divided into DC type and AC type according to the structure and driving method of the display panel. The principle of color display in PDP is: plasma discharge is generated in the chamber space (discharge space) between the two opposing electrodes formed in the front glass substrate and the back glass substrate separated by the partition wall (rib), and is used by passing Ultraviolet rays generated by the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/02H01J9/20H01J17/49C09D17/00H01J11/12H01J11/22H01J11/24H01J11/26H01J11/34H01J11/44
CPCC09D17/002C09D17/007
Inventor 东海裕之铃木信之
Owner TAIYO INK MFG CO LTD
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