Nematic liquid crystal composition and liquid crystal display device using the same
There is provided a liquid crystal composition having a positive dielectric anisotropy including: a dielectrically positive component (A) containing a dielectrically positive compound represented by Formula (1), and a dielectrically neutral component (B) having a dielectric anisotropy larger than −2 and smaller than +2 and containing at least one of dielectrically neutral compounds represented by Formulae (2.1) and (2.2).
1. A liquid crystal composition having a positive dielectric anisotropy comprising a dielectrically positive component (A) and a dielectrically neutral component (B),
wherein the dielectrically positive component (A) comprises:
a dielectrically positive compound represented by Formula (1)
a dielectrically positive compound represented by Formula (6.1)
and
a compound represented by Formula (13.3)
and
wherein the dielectrically neutral component (B) has a dielectric anisotropy larger than −2 and smaller than +2 and comprises:
a compound represented by Formula (2.1)
and
a compound represented by Formula (5.4)
2. The liquid crystal composition according to claim 1 , wherein the dielectrically positive component (A) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (6.3), (6.4), (11.7), (14.1), (14.2), and (18.3)
3. The liquid crystal composition according to claim 1 , wherein the dielectrically neutral component (B) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (3.1), (3.2), and (3.4)
4. The liquid crystal composition according claim 1 , wherein the dielectrically positive component (A) further comprises at least one of compounds represented by Formulae (4.1) and (4.2)
5. The liquid crystal composition according claim 1 , wherein the dielectrically neutral component (B) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (5.1) to (5.3)
where R 1 and R 2 each independently represent a linear alkyl group or linear alkenyl group having 1 to 10 carbon atoms.
6. The liquid crystal composition according to claim 1 , wherein the dielectrically positive component (A) further comprises at least one of compounds represented by Formula (6.2)
7. The liquid crystal composition according to claim 1 , wherein the dielectrically positive component (A) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (7.1) to (7.3)
8. The liquid crystal composition according to claim 1 , wherein the dielectrically neutral component (B) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (8.1) and (8.2)
9. The liquid crystal composition according to claim 1 , wherein the dielectrically neutral component (B) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (9.1) to (9.5)
10. The liquid crystal composition according claim 1 , wherein the dielectrically neutral component (B) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (10.1) and (10.2),
11. The liquid crystal composition according to claim 1 , wherein the dielectrically positive component (A) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (11.1) to (11.3), (11.5), and (11.6)
12. The liquid crystal composition according claim 1 , wherein the dielectrically neutral component (B) further comprises a compound represented by Formula (12.1) or (12.2)
13. The liquid crystal composition according to claim 1 , wherein the dielectrically positive component (A) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (13.1), (13.2), and (13.4)
14. The liquid crystal composition according to claim 1 , wherein the dielectrically positive component (A) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (15.1) to (15.3)
15. The liquid crystal composition according to claim 1 , wherein the dielectrically neutral component (B) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (16.1) to (16.3)
where R 1 and R 2 each independently represent a linear alkyl group or linear alkenyl group having 1 to 10 carbon atoms.
16. The liquid crystal composition according to claim 1 , wherein the dielectrically neutral component (B) further comprises at least one of compounds represented by Formulae (17.1) and (17.2)
17. The liquid crystal composition according claim 1 , wherein the dielectrically positive component (A) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (18.1), (18.2), (18.4), and (18.5)
18. The liquid crystal composition according to claim 1 , wherein the dielectrically positive component (A) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (19.1) to (19.5)
19. The liquid crystal composition according to claim 1 , wherein the dielectrically positive component (A) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (20.1) to (20.3)
20. The liquid crystal composition according to claim 1 , wherein the dielectrically neutral component (B) further comprises at least one compound selected from the group consisting of compounds represented by Formulae (21.1) to (21.3)
21. An active-matrix-driving liquid crystal display device comprising the liquid crystal composition according to claim 1 .