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Sealing agent for liquid crystal display elements, vertical conduction material, and liquid crystal display element

A liquid crystal display element and sealant technology, which is applied in the direction of adhesives, adhesive types, adhesive additives, etc., can solve the problems of poor storage stability of sealants, and achieve the effect of excellent and low pollution of liquid crystals

Pending Publication Date: 2021-12-31
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a highly reactive thermosetting agent is used to improve the curability and adhesiveness of the sealant, the storage stability of the obtained sealant may deteriorate

Method used

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  • Sealing agent for liquid crystal display elements, vertical conduction material, and liquid crystal display element
  • Sealing agent for liquid crystal display elements, vertical conduction material, and liquid crystal display element
  • Sealing agent for liquid crystal display elements, vertical conduction material, and liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10、 comparative example 1～3

[0191] According to the compounding ratios listed in Tables 1 and 2, each material was mixed using a planetary mixer (manufactured by Thinky Co., Ltd., defoaming Rentaro (Japanese: あわとり先太郎)), and then further mixed with a three-roll machine to prepare Examples 1-10, each sealing compound for liquid crystal display elements of Comparative Examples 1-3.

[0192]

[0193] The following evaluation was performed about each sealing compound for liquid crystal display elements obtained by the Example and the comparative example. The results are shown in Tables 1 and 2.

[0194] (storage stability)

[0195] About each sealing compound for liquid crystal display elements obtained in the Example and the comparative example, the initial stage viscosity immediately after manufacture, and the viscosity after manufacture and storage at 25 degreeC for 1 week were measured. Let (viscosity after storage) / (initial viscosity) be the thickening ratio, the case where the thickening ratio is le...

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Abstract

A purpose of the present invention is to provide a sealing agent for liquid crystal display elements, said sealing agent having excellent storage stability, adhesiveness and low liquid crystal contamination properties. Another purpose of the present invention is to provide a vertical conduction material and a liquid crystal display element, each of which is obtained using the sealing agent for liquid crystal display elements. The present invention is a sealing agent for liquid crystal display elements, said sealing agent containing a thermosetting resin and a thermal curing agent, wherein: the thermal curing agent contains a hydrazide compound; and the hydrazide compound has a structure represented by formula (1-1) and a structure represented by formula (1-2). In formula (1-1), Ar represents an aromatic ring; and in formula (1-2), R1 represents a hydrogen atom or a methyl group.

Description

technical field [0001] This invention relates to the sealing compound for liquid crystal display elements excellent in storage stability, adhesiveness, and low liquid crystal contamination property. Moreover, this invention relates to the vertical conduction material and liquid crystal display element which used this sealing compound for liquid crystal display elements. Background technique [0002] In recent years, as a method of manufacturing liquid crystal display elements such as liquid crystal display units, from the viewpoint of shortening the tact time and optimizing the amount of liquid crystal usage, a sealing agent as disclosed in Patent Document 1 and Patent Document 2 has been used. Liquid crystal dropping method called dropping method. [0003] In the dropping process, first, a frame-shaped seal pattern is formed on one of two substrates with electrodes by dispensing. Next, microdroplets of liquid crystal are dropped into the frame of the seal pattern while th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/10C09J163/00C09J11/08G02F1/1339
CPCC09J163/10C09J11/08G02F1/1339C08L2205/025C08L63/10C08L63/00C08L25/08C09K3/10C08L101/00
Inventor 高桥骏介林秀幸竹田幸平小林洋
Owner SEKISUI CHEM CO LTD