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Sealing material and paste material using same

A sealing material and paste technology, applied in photovoltaic power generation, electrical components, circuits, etc., can solve problems such as lack of heat resistance of organic light-emitting materials, heat damage, and deterioration of display characteristics of organic EL displays

Inactive Publication Date: 2012-12-12
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the active elements used in organic EL displays only have a heat resistance of about 120 to 130°C. Therefore, if the glass substrates are sealed by this method, the active elements will be damaged by heat, and the display of the organic EL display will be damaged. Deterioration of characteristics
In addition, organic light-emitting materials also lack heat resistance. If the glass substrates are sealed by this method, the organic light-emitting materials will be damaged by heat, and the display characteristics of the organic EL display will deteriorate.

Method used

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  • Sealing material and paste material using same
  • Sealing material and paste material using same
  • Sealing material and paste material using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0171] Examples of the first embodiment will be described in detail below. In addition, the following Examples are just illustrations. The present invention is not limited by the following examples.

[0172] Table 2 shows SnO-containing glass powders (sample Nos. 1 to 7) related to Examples.

[0173] [Table 2]

[0174]

[0175] Each glass powder was prepared as described below. First, according to the glass composition shown in Table 2, after preparing the raw materials, the prepared raw materials were put into an alumina crucible, and melted at the melting temperature shown in the table under nitrogen atmosphere for 1 to 2 hours. Next, the obtained molten glass is molded into a film form with a water-cooled roll. Next, the glass film is crushed and classified by a ball mill to obtain an average particle size D 50 2.5μm, maximum particle size D 99 7μm glass powder.

[0176] About sample No. 1-7, glass transition temperature, softening point, and thermal expansion coe...

Embodiment 2

[0196] Examples of the second embodiment will be described in detail below. In addition, the following Examples are just illustrations. The present invention is not limited by the following examples.

[0197] Table 4 shows SnO-containing glass powders (sample Nos. 8 to 14) related to Examples.

[0198] [Table 4]

[0199]

[0200] Each glass powder was prepared as described below. Firstly, according to the glass composition shown in Table 4, after preparing raw materials, the prepared raw materials were put into alumina crucibles, and melted at the melting temperatures shown in the table under a nitrogen atmosphere for 1 to 2 hours. Next, the obtained molten glass was molded into a film form by water-cooled rolls. Next, the glass film is crushed by a ball mill and then classified to obtain the average particle size D 50 2.5μm, maximum particle size D 99 10μm glass powder.

[0201] Regarding sample Nos. 8 to 14, glass transition temperature, softening point, and therma...

Embodiment 3

[0214] For sample H in Table 5, only the average particle diameter D of the primary particle of the pigment was changed and adjusted 50 , making sealing materials (sample O ~ U). Using this sealing material, investigate the average particle diameter D of primary particles of the pigment 50 Effect on softening flow characteristics. The results are shown in Table 6.

[0215] [Table 6]

[0216]

[0217] The softening flow properties were evaluated as described below. That is, for the softening flow characteristics, by irradiating a laser beam under the same conditions as the laser sealing characteristics of Example 2 to the glass substrate with a glaze film produced under the same conditions as the laser sealing characteristics of Example 2, and finally observing In the joined portion, the evaluation of moderately softened flow was "O", the evaluation of a position where a small amount of unsoftened flow was confirmed was "Δ", and the evaluation of a position where much un...

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Abstract

Disclosed is a sealing material suitable for laser sealing whereby long-term reliability of devices such as organic EL displays is increased. This sealing material contains 80 - 99.7% by mass of an inorganic powder containing glass powder that contains SnO and 0.3 - 20% by mass of a pigment and is characterized by being used for laser sealing.

Description

technical field [0001] The present invention relates to a sealing material and a paste material using the same. More specifically, the present invention relates to a sealing material used for sealing treatment by laser (hereinafter, laser sealing) and a paste material using the same. Background technique [0002] In recent years, organic EL displays have attracted attention as flat display panels. Organic EL displays can be driven by DC voltage, so the driving circuit can be simplified, and there is no viewing angle dependence like liquid crystal displays, and it also has the advantages of being bright due to self-illumination, and has a fast response speed. Currently, organic EL displays are mainly used in small portable devices such as mobile phones, but application to ultra-thin TVs is expected in the future. In addition, organic EL displays, like liquid crystal displays, are mainly driven by arranging active elements such as thin film transistors (TFTs) in each pixel. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/24C03C27/06H01L51/50H05B33/04
CPCY02E10/542C03C8/14C03C8/08C03C8/24H01L51/5246H10K50/8426
Inventor 益田纪彰白神彻荒川浩士大下浩之
Owner NIPPON ELECTRIC GLASS CO LTD
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