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Transparent composite substrate and display element substrate

A composite substrate, transparent technology, used in textiles, fabrics, instruments, etc., can solve the problem of lack of optical properties, and achieve uniform, excellent optical properties, and high reliability.

Inactive Publication Date: 2014-07-30
SUMITOMO BAKELITE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, conventional glass fiber composite resin sheets have a problem that they are optimized only for printed circuit board applications, and therefore do not have optical properties suitable for the above-mentioned applications.

Method used

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  • Transparent composite substrate and display element substrate
  • Transparent composite substrate and display element substrate
  • Transparent composite substrate and display element substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1A

[0193] (1) Preparation of glass cloth

[0194] First, as a glass cloth, a 100 mm square NE glass-based glass cloth (average thickness 95 μm, average wire diameter 9 μm) was prepared. After immersing this in benzyl alcohol (refractive index: 1.54), acetoxyethoxyethane (refractive index: 1.406) was gradually added to this benzyl alcohol in small amounts. Then, each time the refractive index of benzyl alcohol was changed, a glass cloth was placed over the fluorescent lamp, and it was confirmed whether the glass cloth became substantially transparent. In addition, the refractive index of the mixed solution when a substantially transparent portion appeared on the glass cloth was measured.

[0195] The difference between the refractive index of the mixed liquid when a substantially transparent portion first appeared and the refractive index of the mixed liquid when a substantially transparent portion appeared last was defined as the difference in refractive index of the glass cloth...

Embodiment 2A～12A

[0211] (Examples 2A to 12A and Comparative Examples 1A to 4A)

[0212] Except having changed the manufacturing conditions as shown in Tables 1 and 2, it carried out similarly to Example 1A, respectively, and obtained the transparent composite board|substrate.

[0213] In addition, in Examples 2A, 3A, 4A, 8A, 12A and Comparative Examples 2A, 4A, the hydrogenated biphenyl type alicyclic epoxy resin (E-BP manufactured by Daicel Chemical Industry Co., Ltd.) used as a resin monomer , Tg:>250°C) has the structure of the above chemical formula (1). In addition, the refractive index of E-BP after crosslinking was 1.522.

[0214] In addition, in Examples 3A, 8A and Comparative Example 2A, T glass-based glass cloth (average thickness 95 μm, average wire diameter 9 μm) was used as the glass cloth; in Example 5A, S glass-based glass cloth was used as the glass cloth. Cloth (average thickness 95 μm, average wire diameter 9 μm); in Comparative Examples 3A and 4A, E-glass glass cloth (aver...

Embodiment 1B～12B、 comparative example 1B～5B

[0222] In Example 1B, except having made content of the glass cloth in a composite layer into 60 mass %, it carried out similarly to Example 1A, and obtained the transparent composite board|substrate. In addition, in Examples 2B to 12B and Comparative Examples 1B to 5B, except that the production conditions were changed as shown in Tables 3 and 4, transparent composite substrates were obtained in the same manner as in Example 1B, respectively.

[0223] In addition, the 5% weight reduction temperature of the alicyclic epoxy resin or alicyclic acrylic resin which is the main component contained in the resin material is calculated as Td [° C.], and the melting point of the inorganic material constituting the gas barrier layer as Td [° C.] Tables 3 and 4 show Tm-Td at Tm [°C].

[0224] In addition, in Examples 3B, 8B and Comparative Example 2B, T glass-based glass cloth (average thickness 95 μm, average wire diameter 9 μm) was used as the glass cloth; in Example 5B, S glass-based ...

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Abstract

This transparent composite substrate has a composite layer comprising a glass fabric configured by a glass fiber aggregate and a resin material with an Abbe number of no less than 45 impregnated in the glass fabric. Despite there being variability in the refractive index within the glass fiber aggregate itself, the difference between the maximum and minimum values of the refractive index is no greater than 0.01. Consequently, it is possible to provide a transparent composite substrate with excellent optical properties and a highly reliable display element substrate provided with the transparent composite substrate. Additionally, the resin material preferably has an alicyclic epoxy resin or alicyclic acrylic resin as a main component.

Description

technical field [0001] The present invention relates to a transparent composite substrate and a display element substrate. Background technique [0002] Glass plates are widely used in color filter substrates used in display elements such as liquid crystal display elements and organic EL display elements, display element substrates such as active matrix substrates, substrates for solar cells, and the like. However, glass plates are easily broken, cannot be bent, and are not suitable for weight reduction. In recent years, substrates (plastic substrates) made of plastic materials have been studied as alternative materials. [0003] Here, as a plastic substrate, a glass fiber composite resin sheet for printed circuit boards has been proposed (for example, refer to Patent Document 1). The glass fiber composite resin sheet is a composite resin sheet in which a glass cloth containing glass fibers is impregnated with a transparent resin material. In particular, the glass fiber co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/08B32B9/00G02F1/1333C03C25/285
CPCC08J5/043C08J2363/00G02F1/133305Y10T442/2992Y10T442/2041C08J5/244C03C25/285
Inventor 江口敏正楳田英雄内藤学大塚博之
Owner SUMITOMO BAKELITE CO LTD
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