Liquid crystal composition containing nitrogen-containing cyclic compound and liquid crystal display device

Patent metadata

Field	Value
Publication number	US-9676686-B2
Application number	US-201614994150-A
Country	US
Kind code	B2
Filing date	Jan 13, 2016
Priority date	Jan 15, 2015
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

The disclosure shows a liquid crystal composition that contains a compound having an effect of preventing photolysis of the liquid crystal composition and having high solubility in the liquid crystal composition, and that satisfies at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large positive or negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light or heat, and a suitable elastic constant, etc. and so on.
The disclosure shows a liquid crystal composition that contains a compound having the following azolidine ring (Q-1) or azepane ring (Q-2), a liquid crystal display device and so on.

First claim

What is claimed is:

1. A liquid crystal composition, containing at least one compound selected from the group consisting of compounds represented by formulae (1-1) to (1-4) and at least one compound selected from the group consisting of compounds represented by formulae (2) to (4),

wherein in formulae (1-1) to (1-4),
M is a tetravalent aliphatic hydrocarbon group having 1 to 20 carbons or a tetravalent aromatic hydrocarbon group having 1 to 20 carbons, wherein at least one —CH 2 — in these groups is optionally replaced with —O— or —S—, one or two —CH═CH— in these groups are optionally replaced with —CH═N—, and at least one hydrogen in these groups is optionally replaced with fluorine or chlorine;
Z is a single bond, —O—, —COO—, or —OCO—;
Q is a monovalent group represented by formula (Q-1) or (Q-2), wherein R a is hydrogen, —O., —OH, or —R 1 ;

R b is hydrogen, fluorine, or —R 2 ; and
R 1 and R 2 are independently alkyl having 1 to 20 carbons, arylalkyl having 1 to 20 carbons, or aryl having 1 to 20 carbons, wherein at least one —CH 2 — in the alkyl is optionally replaced with —O—, —CO—, —COO—, or —OCO—, and —CH 3 located at a terminal of the alkyl is optionally replaced with —NHR 3 or —NR 4 R 5 , wherein R 3 , R 4 and R 5 are independently alkyl having 1 to 10 carbons;

wherein in formulae (2) to (4),
R 11 and R 12 are independently alkyl having 1 to 10 carbons or alkenyl having 2 to 10 carbons, wherein at least one —CH 2 — in the alkyl or alkenyl is optionally replaced with —O—, and at least one hydrogen in the alkyl or alkenyl is optionally replaced with fluorine;
ring B 1 , ring B 2 , ring B 3 , and ring B 4 are independently 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 2,5-difluoro-1,4-phenylene, or pyrimidine-2,5-diyl; and
Z 11 , Z 12 , and Z 13 are independently a single bond, —CH 2 CH 2 —, —CH═CH—, or —COO—.

2. The liquid crystal composition according to claim 1 , wherein in formulae (1-1) to (1-4) of claim 1 , at least one Q is a monovalent group represented by formula (Q-2),

wherein in formula (Q-2), R a is hydrogen, —O., —OH, or —R 1 ; and
R 1 is alkyl having 1 to 20 carbons, arylalkyl having 1 to 20 carbons, or aryl having 1 to 20 carbons, wherein at least one —CH 2 — in the alkyl is optionally replaced with —O—, —CO—, —COO—, or —OCO—, and —CH 3 located at a terminal of the alkyl is optionally replaced with —NHR 3 or —NR 4 R 5 , wherein R 3 , R 4 and R 5 are independently alkyl having 1 to 10 carbons.

3. The liquid crystal composition according to claim 1 , wherein the at least one compound selected from the group consisting of compounds represented by formulae (1-1) to (1-4) is a compound represented by any one of formulae (1-1a) to (1-4a),

wherein in formulae (1-1a) to (1-4a),

are divalent, trivalent or tetravalent groups, formed by removing hydrogen from alkane having 1 to 15 carbons, alkane having 1 to 15 carbons in which at least one —CH 2 — is replaced with —O—, cyclohexane, bicyclohexane, decahydronaphthalene, tetrahydropyran, dioxane, benzene, benzene in which at least one hydrogen is replaced with fluorine, biphenyl, naphthalene, pyridine, or pyrimidine;
Z is a single bond, —O—, —COO—, or —OCO—;
Q is a monovalent group represented by formula (Q-1) or (Q-2), wherein R a is hydrogen, —O., —OH, or —R 1 ,

R b is hydrogen, fluorine, or —R 2 ; and
R 1 and R 2 are independently alkyl having 1 to 20 carbons, arylalkyl having 1 to 20 carbons, or aryl having 1 to 20 carbons, wherein at least one —CH 2 — in the alkyl is optionally replaced with —O—, and —CH 3 located at a terminal of the alkyl is optionally replaced with —NHR 3 or —NR 4 R 5 , wherein R 3 , R 4 and R 5 are independently alkyl having 1 to 10 carbons.

4. The liquid crystal composition according to claim 3 , wherein in formulae (1-1a) to (1-4a) of claim 3 ,

are independently any one of a divalent group represented by formulae (M-1) to (M-7), a trivalent group represented by formulae (M-8) to (M-23), and a tetravalent group represented by formulae (M-24) to (M-42), wherein c is an integer of 0 to 16

5. The liquid crystal composition according to claim 1 , wherein the at least one compound selected from the group consisting of compounds represented by formulae (1-1) to (1-4) is a compound represented by any one of formulae (1a) to (1s),

wherein in formulae (1a) to (1s),
d is an integer of 1 to 14;
e is an integer of 0 to 13;
Q is a monovalent group represented by formula (Q-1) or (Q-2), wherein R a is hydrogen, —O., —OH, or —R′;

R b is hydrogen or —R 2 ;
R 1 and R 2 are independently alkyl having 1 to 20 carbons, arylalkyl having 1 to 20 carbons, or aryl having 1 to 20 carbons, wherein at least one —CH 2 — in the alkyl is optionally replaced with —O—; and R 4 and R 5 are independently alkyl having 1 to 10 carbons.

6. The liquid crystal composition according to claim 5 , wherein in formulae (Q-1) and (Q-2) of claim 5 , R a is hydrogen, —O., —OH, alkyl having 1 to 10 carbons, or alkoxy having 1 to 10 carbons.

7. The liquid crystal composition according to claim 1 , wherein the at least one compound selected from the group consisting of compounds represented by formulae (1-1) to (1-4) is a compound represented by any one of formulae (1a-1), (1f), (1h), and (1n),

wherein in formulae (1a-1), (1f), (1h), and (1n),
f is an integer of 1 to 12; and
Q is a monovalent group represented by formula (Q-1) or (Q-2), wherein R a is hydrogen or alkyl having 1 to 15 carbons:

8. The liquid crystal composition according to claim 1 , further containing at least one compound selected from the group consisting of compounds represented by formulae (5) to (7),

w

Assignees

• Jnc Corp
• Jnc Petrochemical Corp

Inventors

• Gotoh Yasuyuki
• Okumura Kazuo

Classifications

• C09K2019/3083

  Cy-Ph-COO-Ph · CPC title

• C07D207/12

  Oxygen or sulfur atoms · CPC title

• C07D403/12

  linked by a chain containing hetero atoms as chain links · CPC title

• C09K2019/3425

  Six-membered ring with oxygen(s) in fused, bridged or spiro ring systems · CPC title

• C07D223/12

  Nitrogen atoms not forming part of a nitro radical · CPC title