Polymerizable compound-containing liquid crystal composition and liquid crystal display element using same

A polymerizable compound-containing liquid crystal composition, comprising:

• 0.01 mass % to 2 mass % of at least one kind of compound represented by General Formula (I):
• (R11lM11L11-M12mL12-M13Z)n (1)
• (in the general formula (I), Z represents —S1—R12, S1 is at least one linking group selected from the group consisting of an alkylene group having 1 to 5 carbon atoms and a single bond, and one —CH2— or non-adjacent two or more —CH2— in the alkylene group may be substituted with —O—, —COO—, —OCO—, or —OCOO—,
• R11 and R12 each independently represent any one of the following formulae (R-I) and (R-III) to (R-IX):
• in the formulae (R-I) and (R-III) to (R-IX), R21, R31, R41, R51 and R61 each independently are a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a halogenated alkyl group having 1 to 5 carbon atoms, W is a single bond, —O— or a methylene group, T is a single bond or —COO—, and p, t, and q each independently are 0, 1, or 2,
• L11 s a single bond, —OCH2—, —CH2O—, —C2H4—, —COO—, —OCO—, —OCOOCH2—, —CH2OCOO—, —OCH2CH2O—, —CH═CRa—COO—, —CH═CRa—OCO—, —COO—CRa═CH—, —OCO—CRa═CH—, —COO—CRa═CH—COO—, —COO—CRa═CH—OCO—, —OCO—CRa═CH—COO—, —OCO—CRa═CH—OCO—, —(CH2)z—C(═O)—O—, —(CH2)z—O—(C═O)—, —O—(C═O)—(CH2)z—, —(C═O)—O—(CH2)z—, —CH═CH—, —CF═CF—, —CF═CH—, —CH═CF—, —CF2O—, —OCF2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, or —C≡C— (in the formulae, Ras each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and z represents an integer of 2 or 4),
• L12 is —OCH2—, —CH2O—, —C2H4—, —COO—, —OCO—, —OCOOCH2—, —CH2OCOO—, —OCH2CH2O—, —CH═CRa—COO—, —CH═CRa—OCO—, —COO—CRa═CH—, —OCO—CRa═CH—, —COO—CRa═CH—COO—,—COO—CRa═CH—OCO—, —OCO—CRa═CH—COO—, —OCO—CRa═CH—OCO—, —(CH2)z—C(═O)—O—, —(CH2)z—O—(C═O)—, —O—(C═O)—(CH2)z—, —(C═O)—O—(CH2)z—, —CH═CH—, —CF═CF—, —CF═CH—, —CH═CF—, —CF2O—, —OCF2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, or —C≡C— (in the formulae, Ras each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and z represents an integer of 2 or 4),
• M12 represents a 1,4-phenylene group, a naphthalene-2,6-diyl group, or an indan-2,5-diyl group, but M12 each independently may be unsubstituted or may be substituted with an alkyl group having 1 to 12 carbon atoms, a halogenated alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a halogenated alkoxy group having 1 to 12 carbon atoms, a halogen, a cyano group, or a nitro group,
• M13 is each independently any one of the following formulae (i) to (ix):
• l is 1 or 2, m represents an integer of 1 to 3, n represents an integer of 1 to 3, when m represents 2 and 3, two or three L11 and M12 may be the same as or different from each other, provided that, at least one L11 represents a single bond,
• further, in the case of l=1, M11 represents a 1,4-phenylene group, or an indan-2,5-diyl group, but M11 each independently may be unsubstituted or may be substituted with an alkyl group having 1 to 12 carbon atoms, a halogenated alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a halogenated alkoxy group having 1 to 12 carbon atoms, a halogen, a cyano group, or a nitro group, and
• in the case of l=2, M11 is any one of the above formulae (iv) to (vi));
• 5 mass % to 80 mass % of at least one kind of compound represented by General Formula (II):
• R21-M21-L21-M22-(L22-M23)o-R22 (II)
• (in the general formula (II), R21 and R22 each independently represent an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, one —CH2— or two or more non-adjacent —CH2— present in these groups may be substituted with —O— or —S—, at least one hydrogen atom present in these groups may be substituted with a fluorine atom or a chlorine atom,
• M21, M22, and M23 each independently represent a group selected from the group consisting of:
• (a) a trans-1,4-cyclohexylene group (one —CH2— or two or more non-adjacent —CH2—present in this group may be substituted with —O— or —S—),
• (b) a 1,4-phenylene group (one —CH═ or two or more non-adjacent —CH═ present in this group may be substituted with —N═), a 2-fluoro-1,4-phenylene group, a 3-fluoro-1,4-phenylene group, and a 3,5-difluoro-1,4-phenylene group, and
• (c) a 1,4-cyclohexenylene group, a 1,4-bicyclo[2.2.2]octylene group, a piperidine-2,5-diyl group, a naphthalene-2,6-diyl group, a decahydronaphthalene-2,6-diyl group, and a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group,
• o represents 0, 1, or 2, and
• L21 and L22 each independently represent a single bond, —CH2CH2—, —(CH2)4—, —OCH2—, —CH2O—, —OCF2—, —CF2O—, —CH═CH—, —CH═N—N═CH—, or —C≡C—, when a plurality of L22 exist, they may be the same as or different from each other, and when a plurality of M23 exist, they may be the same as or different from each other);
• and
• 5 mass % to 80 mass % of at least one compound selected from the group consisting of compounds represented by General formulae (IIIa), (IIIb), (IIIc), (IVa), (IVb), and (IVc):
• (in the general formulae (IIIa), (IIIb), and (IIIc), R31, R32, and R33 each independently represent an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, one —CH2— or two or more non-adjacent —CH2— present in these groups may be substituted with —O— or —S—, at least one kind of hydrogen atom present in these groups may be substituted with a fluorine atom or a chlorine atom,
• M31, M32, M33, M34, M35, M36, M37, and M38 each independently represent a group selected from the group consisting of:
• (d) a trans-1,4-cyclohexylene group (one —CH2— or two or more non-adjacent —CH2—present in this group may be substituted with —O— or —S—),
• (e) a 1,4-phenylene group (one —CH═ or two or more non-adjacent —CH═ present in this group may be substituted with —N═), a 3-fluoro-1,4-phenylene group, and a 3,5-difluoro-1,4-phenylene group, and
• (f) a 1,4-cyclohexenylene group, a 1,4-bicyclo[2.2.2]octylene group, a piperidine-2,5-diyl group, a naphthalene-2,6-diyl group, a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, and a decahydronaphthalene-2,6-diyl group, and each hydrogen atom included in the group (d), the group (e), or the group (f) may be substituted with a cyano group, a fluorine atom, a trifluoromethyl group, a trifluoromethoxy group, or a chlorine atom,
• L31, L32, L33, L34, L35, L36, L37, and L38 each independently represent a single bond, —COO—, —OCO—, —CH2CH2—, —(CH2)4—, —OCH2—, —CH2O—, —OCF2—, —CF2O—, or —C≡C—, and when a plurality of M32, M34, M35, M37, M38, L31, L33, L35, L36, and/or L38 are present, they may be the same as or different from each other,
• X31, X32, X33, X34, X35, X36, and X37 each independently represent a hydrogen atom or a fluorine atom,
• Y31, Y32, and Y33 each independently represent a fluorine atom, a chlorine atom, a cyano group, a thiocyanate group, a trifluoromethoxy group, a trifluoromethyl group, a 2,2,2-trifluoroethyl group, or a difluoromethoxy group, and
• p, q, r, s, and t each independently represent 0, 1, or 2, provided that each of q+r and s+t is 2 or less);
• and
• (in the general formulae (IVa), (IVb), and (IVc), R41, R42, R43, R44, R45, and R46 each independently represent an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, and one —CH2— or two or more non-adjacent —CH2— present in these groups may be substituted with —O— or —S—, and at least hydrogen atom present in these groups may be substituted with a fluorine atom or a chlorine atom,
• M41, M42, M43, M44, M45, M46, M47, M48, and M49 each independently represent a group selected from the group consisting of:
• (g) a trans-1,4-cyclohexylene group (one —CH2— or two or more non-adjacent —CH2— present in this group may be substituted with —O— or —S—),
• (h) a 1,4-phenylene group (one —CH═ or two or more non-adjacent —CH═ present in this group may be substituted with —N═), and
• (i) a 1,4-cyclohexenylene group, a 1,4-bicyclo[2.2.2]octylene group, a piperidine-2,5-diyl group, a naphthalene-2,6-diyl group, a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, and a decahydronaphthalene-2,6-diyl group, and each hydrogen atom contained in the group (g), (h), or (i) may be substituted with a cyano group, a fluorine atom, a trifluoromethyl group, a trifluoromethoxy group, or a chlorine atom,
• L41, L42, L43, L44, L45, L46, L47, L48, and L49 each independently represent a single bond, —COO—, —OCO—, —CH2CH2—, —(CH2)4—, —OCH2—, —CH2O—, —OCF2—, —CF2O—, or —C≡C—, and when a plurality of M42, M43, M45, M46, M48, M49, L41, L43, L44, L46, L47, and/or L49 are present, they may be the same as or different from each other,
• X41, X42, X43, X44, X45, X46, X47, and X48 each independently represent a hydrogen atom, a trifluoromethyl group, a trifluoromethoxy group, a chlorine atom, or a fluorine atom, any one of X41 and X42 represents a fluorine atom, any one of X43, X44, and X45 represents a fluorine atom, any one of X46, X47, and X48 represents a fluorine atom, provided that X46 and X47 do not represent a fluorine atom at the same time and X46 and X48 do not represent a fluorine atom at the same time,
• G represents —CH2— or —O—, and
• u, v, w, x, y, and z each independently represent 0, 1, or 2, provided that u+v, w+x, and y+z are each 2 or less).