Title:
SEALING AGENT FOR LIQUID CRYSTAL DROPPING METHODS AND METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY PANEL
Document Type and Number:
WIPO Patent Application WO/2021/177111
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a sealing agent for liquid crystal dropping methods, said sealing agent being able to be suited to frame narrowing of a liquid crystal display panel and being capable of forming a sealing member that exhibits high bonding strength to a substrate, while being not likely to be dissolved in liquid crystals; and a method for producing a liquid crystal display panel. A sealing agent for liquid crystal dropping methods, by which the above-described problem is solved, contains an epoxy compound that does not have a polymerizable functional group other than an epoxy group, a (meth)acryl/epoxy-containing compound that has both a (meth)acryl group and an epoxy group in each molecule, a (meth)acrylic compound that does not have an epoxy group, a thermal curing agent and a photopolymerization initiator; and the content of the epoxy compound is from 22 to 38% by mass. The residual DC value as measured in 30 seconds after heating a mixture, in which the sealing agent for liquid crystal dropping methods and liquid crystals are mixed at a mass ratio of 1:10, at 120°C for one hour, applying a voltage thereto at 5V for one second, and short-circuiting for 0.1 second is 200% or less of the residual DC value as measured using only the liquid crystals.
Inventors:
MIYAO HIROSHI
Application Number:
PCT/JP2021/006896
Publication Date:
September 10, 2021
Filing Date:
February 24, 2021
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
G02F1/1339; C09K3/10
Domestic Patent References:
| WO2016080278A1 | 2016-05-26 | |||
| WO2017199905A1 | 2017-11-23 |
Foreign References:
| JP2006106385A | 2006-04-20 | |||
| JP2017223828A | 2017-12-21 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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