Composition and liquid crystal display element using same
Provided is a composition which has a liquid phase over a wide temperature range, a low viscosity, an excellent solubility at low temperature, high specific resistance, high voltage retention rate, and stability against heat or light, and further a liquid crystal display element of, for example, such as an IPS type or a TN type, which has excellent display qualities by using the composition, and in which display defects such as burn-in or drip marks are hardly caused, at a high yield. Provided is a composition including one or more compounds represented by General Formula (i), one or more compounds represented by General Formula (M-1), and one or more compounds represented by General Formula (M-4), and a liquid crystal display element using the composition.
1. A composition comprising:
one or more compounds represented by General Formula (i);
one or more compounds represented by General Formula (M-1);
one or more compounds represented by General Formula (M-4); and
one or more compounds represented by General Formula (M-3),
wherein R i1 , R M11 , and R M41 each independently represent an alkyl group having 1 to 8 carbon atoms,
X M11 to X M15 and X M41 to X M48 each independently represent a hydrogen atom, a fluorine atom, or a chlorine atom,
Y M11 and Y M41 each independently represent a fluorine atom or —OCF 3 ,
R M31 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms,
X M31 to X M36 each independently represent a hydrogen atom, or a fluorine atom, and
Y M31 represents a fluorine atom, a chlorine atom, or OCF 3 .
2. The composition according to claim 1 ,
wherein R i1 , R M11 , and R M41 represent a propyl group.
3. The composition according to claim 1 , further comprising one or more compounds represented by General Formula (L):
wherein R L1 and R L2 each independently represent an alkyl group having 1 to 8 carbon atoms, and one —CH 2 — or two or more non-adjacent —CH 2 —'s in the alkyl group each independently may be substituted with —CH═CH—, —C≡C—, —O—, —CO—, —COO—, or —OCO—,
OL represents 0, 1, 2, or 3,
B L1 , B L2 , and B L3 each independently represent a group selected from the group consisting of (a) a 1,4-cyclohexylene group (one —CH 2 — or two or more non-adjacent —CH 2 —'s existing in this group may be substituted with —O—) and (b) a 1,4-phenylene group (one —CH═ or two or more non-adjacent —CH═'s existing in this group may be substituted with —N═), and the group (a) and the group (b) each independently may be substituted with a cyano group, a fluorine atom, or a chlorine atom,
L L1 and L L2 each independently represent a single bond, —CH 2 CH 2 —, —(CH 2 ) 4 —, —OCH 2 —, —CH 2 O—, —COO—, —OCO—, —OCF 2 —, —CF 2 O—, —CH═N—N═CH—, —CH═CH—, —CF═CF—, or —C≡C—, and
when OL is 2 or 3 and a plurality of L L2 's exist, the plurality of L L2 's may be the same as or different from each other, and when OL is 2 or 3 and a plurality of B L3 's exist, the plurality of B L3 's may be the same as or different from each other.
4. The composition according to claim 1 , further comprising one or more compounds represented by General Formula (M):
wherein R M1 represents an alkyl group having 1 to 8 carbon atoms, and one —CH 2 — or two or more non-adjacent —CH 2 —'s in the alkyl group each independently may be substituted with —CH═CH—, —C≡C—, —O—, —CO—, —COO—, or —OCO—,
PM represents 0, 1, 2, 3, or 4,
C M1 and C M2 each independently represent a group selected from the group consisting of (d) a 1,4-cyclohexylene group (one —CH 2 — or two or more non-adjacent —CH 2 —'s existing in this group may be substituted with —O— or —S—) and (e) a 1,4-phenylene group (one —CH═ or two or more non-adjacent —CH═'s existing in this group may be substituted with —N═), and the group (d) and the group (e) each independently may be substituted with a cyano group, a fluorine atom, or a chlorine atom,
K M1 and K M2 each independently represent a single bond, —CH 2 CH 2 —, —(CH 2 ) 4 —, —OCH 2 —, —CH 2 O—, —OCF 2 —, —CF 2 O—, —COO—, —OCO—, or —C≡C—,
when PM is 2, 3, or 4 and a plurality of K M1 's exist, the plurality of K M1 's may be the same as or different from each other, and when PM is 2, 3, or 4 and a plurality of C M2 's exist, the plurality of C M2 's may be the same as or different from each other,
X M1 and X M3 each independently represent a hydrogen atom, a chlorine atom, or a fluorine atom, and
X M2 represents a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a fluoromethoxy group, a difluoromethoxy group, a trifluoromethoxy group, or a 2,2,2-trifluoroethyl group, provided that the compound represented by General Formula (i), the compound represented by General Formula (M-1), the compound represented by General Formula (M-4), and the compound represented by General Formula (M-3) are excluded.
5. A liquid crystal display element comprising the composition according to claim 1 .
6. An IPS element or an FFS element comprising the composition according to claim 1 .
7. The composition according to claim 1 , wherein an unsaturated bond of the alkenyl group of any compound included in the composition does not directly bond to a benzene ring.
8. The composition according to claim 1 , wherein in a case where a compound included in the composition has an alkenyl group as a side chain, when the alkenyl group bonds to benzene, an unsaturated bond of the alkenyl group does not directly bond to the benzene.
9. The composition according to claim 1 , wherein the compound has a number of carbon atoms of the alkenyl group is 4 or 5.