液晶滴下工法用封止剤、これを用いた液晶表示パネル、およびその製造方法

Title:

液晶滴下工法用封止剤、これを用いた液晶表示パネル、およびその製造方法

Document Type and Number:

Japanese Patent JP7145329

Kind Code:

B2

Abstract:

The present invention addresses the problem of providing a sealing agent for liquid crystal dropping methods, which is not likely to dissolve into liquid crystals during the production of a liquid crystal display panel, and which exhibits high adhesion to a substrate of the liquid crystal display panel after curing.　A sealing agent for liquid crystal dropping methods according to the present invention, which solves the above-described problem, contains (A) an epoxy resin, (B) a curable resin that contains at least one (meth)acryloyl group in each molecule, (C) a photopolymerization initiator, and (D) a thermal curing agent. The epoxy resin (A) has an epoxy equivalent weight of 350 or more; a cured product of the epoxy resin (A) has a glass transition temperature of 100°C or less; in the ultraviolet-visible absorption spectrum as determined by dissolving only the photopolymerization initiator (C) in tetrahydrofuran, the wavelength at which the absorbance is 0.1 or more when affirmed from the long wavelength side is 400 nm or more; and the content of the epoxy resin (A) is 5% by mass or more but less than 20% by mass.

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Inventors:

Yuji Mizobe

Application Number:

JP2021520701A

Publication Date:

September 30, 2022

Filing Date:

May 08, 2020

Export Citation:

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