Diamino compounds, useful as raw materials for polyimide compounds for an aligning film in a liquid crystal display element, (and precursors for such diamino compounds) have the formula:
in which R₁, R₂, R₃, R₄, R₅ and R₆ are the
same or are different and each is a hydrogen atom or C₁₂-C₂₂ alkyl group; R₇, R₈, R₉, R₁₀, R₁₁,
R₁₂, R₁₃ and R₁₄ are the same or are different and each is a hydrogen atom or a C₁-C₃ alkyl group; and Y is an amino, nitro or hydroxyl group.
POLYMERIZABLE POLAR COMPOUND, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY ELEMENT
申请人:JNC Corporation
公开号:EP3257839A1
公开(公告)日:2017-12-20
Provided is a polar compound having high chemical stability, high ability to align liquid crystal molecules, and high solubility in a liquid crystal composition, and which has a large voltage holding ratio when used in a liquid crystal display element. A compound represented by formula (1). For example, R2 represents a C1-15 alkyl, MES represents a mesogenic group having at least one ring, Sp1 represents a single bond or a C1-10 alkylene, M1 and M2 represent hydrogen, R2 represents a group represented by formulas (1a) through (1c) , Sp2 and Sp3 are single bonds or C1-10 alkylenes, S1 represents >CH-, S2 represents >C<, and X1 represents -OH.
To provide a polymerizable compound having a high solubility in a liquid crystal composition, and laterally having a ring structure; a liquid crystal composition containing the compound, and a liquid crystal display device using the composition; and the polymerizable compound includes a compound represented by formula (1):
wherein, for example,
R
1
is hydrogen or alkyl having 1 to 20 carbons, R
2
and R
3
are each independently hydrogen or methyl;
A
1
and A
2
are a single bond, 1,4-phenylene or 1,4-cyclohexylene;
Z
1
is a single bond or alkylene having 1 to 3 carbons, Z
2
is —O—, —COO—, —OCO— or alkylene having 1 to 6 carbons, Z
3
is a single bond or —O—, Z
4
is a single bond or alkylene having 2 to 20 carbons;
X
1
is hydrogen, halogen or alkyl having 1 to 3 carbons; and
a is 0 or 1.