Curable resin composition, sealant for display element, sealant for liquid crystal display element, vertical conduction material, display element, adhesive for electronic components, and electronic component

Abstract

The purpose of the present invention is to provide a curable resin composition having excellent visible light curability and adhesiveness, and also having excellent low liquid crystal contamination properties when used as a sealing agent for liquid crystal display elements. Another purpose of the present invention is to provide: a sealing agent for display elements, a sealing agent for liquid crystal display elements, and a vertically conducting material, each of which contains the curable resin composition; and a display element having a cured product of the sealing agent for display elements, a cured product of the sealing agent for liquid crystal display elements, or a cured product of the vertically conducting material. Another purpose of the present invention is to provide: an adhesive for electronic components, which contains the curable resin composition; and an electronic component that is bonded with a cured product of the adhesive for electronic components. The present invention is a curable resin composition containing a curable resin and a photopolymerization initiator, wherein the photopolymerization initiator contains a compound represented by formula (1). In formula (1), each R1 independently represents an alkyl group having 1-20 carbon atoms, a cycloalkyl group, an aralkyl group, or a heterocyclic group which may have an ether bond or an amide bond, or an aryl group which may have an ether bond or an amide bond, and the alkyl group having 1-20 carbon atoms, the cycloalkyl group, the aralkyl group, the heterocyclic group, and the aryl group may have a polar group. In formula (1), each R2 independently represents an alkyl group having 1-20 carbon atoms, a cycloalkyl group, an aralkyl group, or a heterocyclic group which may have an ether bond or an amide bond, or an aryl group which may have an ether bond or an amide bond, and the alkyl group having 1-20 carbon atoms, the cycloalkyl group, the aralkyl group, the heterocyclic group, and the aryl group may have a polar group. In formula (1), each R3 independently represents an alkyl group having 1-20 carbon atoms, a cycloalkyl group, an aralkyl group, or a heterocyclic group which may have an ether bond or an amide bond, or an aryl group which may have an ether bond or an amide bond, and the alkyl group having 1-20 carbon atoms, the cycloalkyl group, the aralkyl group, the heterocyclic group, and the aryl group may have a polar group. In formula (1), R4 represents a bond, a structure having an arylene group, or a structure having a heteroarylene group.

Description

technical field [0001] The present invention relates to a curable resin composition, and a sealing compound for display elements, a sealing compound for liquid crystal display elements, a vertical conduction material, a display element, an adhesive for electronic components, and electronic components using the curable resin composition . Background technique [0002] In recent years, liquid crystal display elements, organic EL display elements, and the like have been widely used as display elements having characteristics such as thinness, light weight, and low power consumption. In such display elements and other electronic devices, curable resin compositions are generally used for sealing of liquid crystals and light-emitting layers, bonding of various electronic components, and the like. [0003] For example, in the manufacture of a liquid crystal display element, from the viewpoints of shortening the tact time and optimizing the amount of liquid crystal to be used, those...

AI Technical Summary

Problems solved by technology

[0011] However, in the narrow bezel design, since the sealant is placed directly under the black matrix, if the dripping process is performed, there will be the following problems: the light irradiated when the sealant is photocured is blocked, and the light cannot reach the inside of the sealant. curing becomes insufficient

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