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Sealing agent for liquid crystal display elements, vertically conducting material and liquid crystal display element

A liquid crystal display element and sealant technology, which is applied in liquid crystal materials, optics, instruments, etc., can solve problems such as poor display, and achieve the effects of excellent adhesion, low liquid crystal pollution, and sufficient adhesion

Active Publication Date: 2017-02-15
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in recent years, curved displays obtained by bending panels have attracted attention, but conventional sealants have a problem that the sealant cannot follow the substrate when the substrate is bent, resulting in poor display.

Method used

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  • Sealing agent for liquid crystal display elements, vertically conducting material and liquid crystal display element
  • Sealing agent for liquid crystal display elements, vertically conducting material and liquid crystal display element
  • Sealing agent for liquid crystal display elements, vertically conducting material and liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0143] 2-Hydroxy-3-phenoxypropyl acrylate (manufactured by Kyoeisha Chemical Co., Ltd.) , "EPOXY ESTER M-600A") 20 parts by weight, caprolactone-modified bisphenol A type epoxy acrylate (manufactured by DICEL-ALLNEX, "EBECRYL3708") as a polymerizable compound (b) 50 parts by weight, as 30 parts by weight of partially acrylic-modified bisphenol E-type epoxy resin (manufactured by DICEL-ALLNEX, "KRM8287") of the polymerizable compound (c), 1-(4-(phenylthio) as a photoradical polymerization initiator )phenyl)-1,2-octanedione 2-(O-benzoyl oxime) (manufactured by BASF, "IRGACURE OXE01") 2 parts by weight, malonate dihydrazide (Otsuka Chemical Co., Ltd. 10 parts by weight manufactured by the company, "MDH"), 20 parts by weight of silica (manufactured by Admatechs Corporation, "Admafine SO-C2") as a filler, 3-glycidoxypropyl trimethyl as a silane coupling agent Mix 2 parts by weight of oxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., "KBM-403") and 15 parts by weight of core...

Embodiment 2～14 and comparative example 1～3

[0145] Each material of the compounding ratio described in Tables 1 and 2 was stirred and mixed similarly to Example 1, and the sealing compound for liquid crystal display elements of Examples 2-14 and Comparative Examples 1-3 were prepared.

[0146]

[0147] The following evaluation was performed about the sealing compound for liquid crystal display elements obtained in the Example and the comparative example. The results are shown in Tables 1 and 2.

[0148] (storage stability)

[0149] For each sealant for a liquid crystal display element obtained in Examples and Comparative Examples, the initial viscosity immediately after manufacture and the viscosity when stored at 25° C. for one week were measured, and (viscosity after one week of storage at 25° C.) / (initial Viscosity) is defined as the viscosity change rate, and the case where the viscosity change rate is less than 1.1 is set as "○", the case where the viscosity change rate is 1.1 or more and less than 2.0 is set as...

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PUM

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Abstract

One purpose of the present invention is to provide a sealing agent for liquid crystal display elements, which has excellent adhesion to conventional glass substrates and flexible substrates and does not cause display failure by retaining sufficient adhesive power even if a substrate is bent for curved display applications, while having a low possibility of contaminating liquid crystals. Another purpose of the present invention is to provide: a vertically conducting material which is obtained using the sealing agent for liquid crystal display elements; and a liquid crystal display element. The present invention is a sealing agent for liquid crystal display elements, which contains: a monofunctional polymerizable compound having one polymerizable functional group and one or more hydrogen-bonding functional groups in each molecule; a polymerizable compound having one or more polymerizable functional groups, a lactone ring-opened structure and / or an acrylonitrile-butadiene structure in each molecule; and a polymerization initiator and / or a thermal curing agent.

Description

technical field [0001] The present invention relates to a sealant for liquid crystal display elements, which has excellent adhesiveness to conventional glass substrates and flexible substrates, and maintains sufficient adhesive force even when the substrate is bent for use in curved displays without causing display problems. Bad, low liquid crystal contamination. Moreover, this invention relates to the vertical conduction material and the liquid crystal display element which used this sealing compound for liquid crystal display elements. Background technique [0002] In recent years, in terms of manufacturing methods of liquid crystal display devices such as liquid crystal display units, from the viewpoint of shortening tact time and optimizing the amount of liquid crystals used, for example, the method disclosed in Patent Document 1 and Patent Document 2 is used. ) Liquid crystals that are sealed by a combination of photocurable resins such as acrylic resins and photopolym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1339
CPCG02F1/1339C09K19/544
Inventor 林秀幸
Owner SEKISUI CHEM CO LTD