Curing resin composition, sealing material for liquid crystal display device and liquid crystal display device

A technology of liquid crystal display elements and curable resins, which is applied in nonlinear optics, instruments, optics, etc., and can solve problems such as liquid crystal pollution

Active Publication Date: 2006-07-05
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the first present invention solves the problem of liquid crystal contamination caused by curable resins, the second present invention solves the problem of liquid crystal contaminat

Method used

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  • Curing resin composition, sealing material for liquid crystal display device and liquid crystal display device
  • Curing resin composition, sealing material for liquid crystal display device and liquid crystal display device
  • Curing resin composition, sealing material for liquid crystal display device and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0207] 1000 parts by weight of a crystalline epoxy resin represented by the following general formula (10) (manufactured by Shinichi Chemical Co., Ltd.: YSLV-80XY, melting point 78° C.), 2 parts by weight of p-methoxyphenol as a polymerization inhibitor, 2 parts by weight of triethylamine and 200 parts by weight of acrylic acid as a reaction catalyst were stirred and refluxed at 90° C. for 5 hours while transporting air to obtain non-crystalline (meth)acrylic acid modified epoxy resin (50% part acryloyl).

[0208] [chemical formula 4]

[0209]

[0210] In the formula, G represents a glycidyl group.

[0211] Add 134 parts by weight of trimethylolpropane, 0.2 parts by weight of BHT as a polymerization initiator, 0.01 parts by weight of dibutyltin dilaurate as a reaction catalyst, and 666 parts by weight of isophorone diisocyanate, and stir and reflux at 60°C Under the conditions of reaction for 2 hours. Then, 25.5 parts by weight of 2-hydroxyethyl acrylate and 111 parts by...

Embodiment 2

[0216] 1000 parts by weight of a crystalline epoxy resin represented by the following general formula (11) (manufactured by Shinichi Chemical Co., Ltd.: YSLV-80DE, melting point 79° C.), 2 parts by weight of p-methoxyphenol as a polymerization inhibitor, 2 parts by weight of triethylamine of the reaction catalyst, 200 parts by weight of acrylic acid were stirred and refluxed at 90° C. while conveying air and made to react for 5 hours to obtain crystalline (meth)acrylic acid modified epoxy resin (50% part propylene acylate).

[0217] In addition to replacing the non-crystalline (meth)acrylic modified epoxy resin (50% partially acrylated) with this crystalline (meth)acrylic modified epoxy resin (50% partially acrylated), the adoption and implementation A curable resin composition was prepared in the same manner as in Example 1, and a liquid crystal display device was fabricated using this as a sealant.

[0218] [chemical formula 5]

[0219]

[0220] In the formula, G repres...

Embodiment 3

[0233] The curable resin composition obtained in the same manner as in Example 1 was thoroughly mixed with a three-roll mixer until a uniform liquid was formed, and then, a metal plated with gold as conductive fine particles was mixed with respect to 100 parts by weight of the curable resin composition. 2 parts by weight of plating fine particles (Micropal AU-206 manufactured by Sekisui Chemical Co., Ltd.) were mixed with a vacuum planetary mixer to prepare a vertical conduction material for liquid crystal display elements.

[0234] A liquid crystal display device was produced in the same manner as in Example 1, except that the obtained vertical conduction material was coated on the vertical conduction electrode through a dispenser to form a vertical conduction pattern on the transparent substrate.

[0235] The obtained liquid crystal display device was left in an environment of 60° C. and 95% RH for 500 hours, and the conductivity was good at this time.

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Abstract

It is the object of the invention to provide a curable resin composition which causes no liquid crystal contamination, which are excellent in the adhesive property to a glass, and which causes no cell gap inequality in the case it is used as a sealant for a liquid crystal display element to produce a liquid crystal display element by a one drop fill process, a sealant for a liquid crystal displayelement, and a liquid crystal display element. The invention is a curable resin composition, which contains a curable resin to be cured by light and/or heat and a polymerization initiator, the curable resin being a crystalline (meth)acrylic acid-modified epoxy resin comprising a (meth)acrylic group and an epoxy group in one molecule.

Description

technical field [0001] The present invention relates to a sealant for liquid crystal display elements that, when used as a sealant for liquid crystal display elements, is used in the process of manufacturing liquid crystal display elements by a liquid crystal drop fill process (drop fill process), with little contamination of liquid crystals, good adhesion to substrates, and no generation of cells Curable resin composition with uneven cell gap, sealing compound for liquid crystal display elements, and liquid crystal display elements. Background technique [0002] In the past, liquid crystal display elements such as liquid crystal display units were produced by making two transparent substrates with electrodes facing each other at a predetermined interval, sealing their surroundings with a sealant composed of a curable resin composition, and making the seal The liquid crystal is solidified to form a unit, and then the liquid crystal is injected into the unit from the liquid c...

Claims

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Application Information

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IPC IPC(8): C08G59/17C08F299/02G02F1/1339
Inventor 谷川满渡边贵志尾山雄一山本拓也宇和川决
Owner SEKISUI CHEM CO LTD
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