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Bismuth-based glass, manufacturing method of bismuth-based glass, and sealing material

A bismuth-based glass and sealing material technology, applied in the manufacturing method of bismuth-based glass and sealing materials, and in the field of bismuth-based glass, capable of solving problems such as thermal degradation of active components or organic light-emitting layers

Active Publication Date: 2021-11-02
NIPPON ELECTRIC GLASS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the softening temperature of glass powder is higher than that of organic resin-based adhesives, active elements or organic light-emitting layers may be thermally degraded during sealing.

Method used

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  • Bismuth-based glass, manufacturing method of bismuth-based glass, and sealing material

Examples

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Embodiment

[0066] Based on examples, the present invention will be described in detail. It should be noted that the following examples are merely examples. The present invention is not limited by the following examples.

[0067] Tables 1 and 2 show examples (sample Nos. 1 to 6) and comparative examples (sample Nos. 7 to 10) of the present invention.

[0068] [Table 1]

[0069]

[0070] The glass powders described in the table were prepared as follows. First, glass batches containing various raw materials were prepared so as to have the glass compositions in the table, which were put into platinum crucibles and melted at 1000° C. for 1 hour. During melting, stirring was performed using a platinum rod to homogenize the molten glass. It should be noted that, for Sample Nos. 3 to 5, Bi was introduced from a nitrate raw material. 2 o 3 10% of the content. Next, part of the obtained molten glass was flowed between water-cooled twin rolls and formed into a film, and the remaining molt...

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Abstract

The bismuth-based glass of the present invention is characterized by containing Bi in terms of the following mol % in terms of oxides: 2 o 3 25-45%, B 2 o 3 20-35%, 90-100% (excluding 90%) of Bi 2 o 3 +B 2 o 3 +BaO+ZnO+CuO+MnO+Fe 2 o 3 +TiO 2 +V 2 o 5 +Cr 2 o 3 +Co 3 o 4 +NiO as glass composition, molar ratio (Bi 2 o 3 +B 2 o 3 +BaO+ZnO) / (CuO+MnO+Fe 2 o 3 +TiO 2 +V 2 o 5 +Cr 2 o 3 +Co 3 o 4 +NiO) is 2.0 to 3.5.

Description

technical field [0001] The present invention relates to bismuth-based glass, a method for manufacturing bismuth-based glass, and a sealing material, and more particularly, to bismuth-based glass, a method for manufacturing bismuth-based glass, and a sealing material suitable for laser sealing (hereinafter referred to as laser sealing). Background technique [0002] In recent years, organic EL displays have attracted attention as flat display panels. Conventionally, an organic resin-based adhesive having low-temperature curability has been used as a bonding material for an organic EL display. However, organic resin-based adhesives cannot completely block the entry of gas or moisture, so active elements and organic light-emitting layers with low water resistance are easily degraded, resulting in the disadvantage that the display characteristics of organic EL displays deteriorate over time. [0003] On the other hand, a sealing material containing glass powder is less likely t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/14C03C8/24
CPCC03C3/14C03C8/24C03C3/122C03C3/15
Inventor 广濑将行
Owner NIPPON ELECTRIC GLASS CO LTD
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