WO2014136191A1 - 液晶組成物及びこれを用いた液晶表示素子 - Google Patents

液晶組成物及びこれを用いた液晶表示素子 Download PDF

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WO2014136191A1
WO2014136191A1 PCT/JP2013/055880 JP2013055880W WO2014136191A1 WO 2014136191 A1 WO2014136191 A1 WO 2014136191A1 JP 2013055880 W JP2013055880 W JP 2013055880W WO 2014136191 A1 WO2014136191 A1 WO 2014136191A1
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mass
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general formula
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English (en)
French (fr)
Japanese (ja)
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河村　丞治
根岸　真
芳典 岩下
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Dic株式会社
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Priority to CN201380061140.3A priority Critical patent/CN104812872B/zh
Priority to JP2013535159A priority patent/JP5565530B1/ja
Priority to PCT/JP2013/055880 priority patent/WO2014136191A1/ja
Publication of WO2014136191A1 publication Critical patent/WO2014136191A1/ja

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
    • C09K19/3066—Cyclohexane rings in which the rings are linked by a chain containing carbon and oxygen atoms, e.g. esters or ethers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
    • C09K2019/0466—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the linking chain being a -CF2O- chain
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
    • C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
    • C09K2019/123—Ph-Ph-Ph
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
    • C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
    • C09K2019/3004—Cy-Cy
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
    • C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
    • C09K2019/301—Cy-Cy-Ph

Definitions

  • the present invention relates to a nematic liquid crystal composition having a positive dielectric anisotropy ( ⁇ ) useful as a liquid crystal display material, and a liquid crystal display device using the same.
  • Liquid crystal display elements are used in various measuring instruments, automobile panels, word processors, electronic notebooks, printers, computers, televisions, watches, advertisement display boards, etc., including clocks and calculators.
  • Typical liquid crystal display methods include TN (twisted nematic) type, STN (super twisted nematic) type, vertical alignment type using TFT (thin film transistor), and IPS (in-plane switching) type.
  • the liquid crystal composition used in these liquid crystal display elements is stable against external stimuli such as moisture, air, heat, light, etc., and exhibits a liquid crystal phase in the widest possible temperature range centering on room temperature. And a low driving voltage is required. Further, the liquid crystal composition is composed of several to several tens of kinds of compounds in order to optimize the dielectric anisotropy ( ⁇ ), the refractive index anisotropy ( ⁇ n) and the like for each display element.
  • a liquid crystal composition having a negative ⁇ is used, and in a horizontal alignment type display such as a TN type, STN type, or IPS (in-plane switching) type, a liquid crystal composition having a positive ⁇ . Is used.
  • a driving method has been reported in which a liquid crystal composition having a positive ⁇ is vertically aligned when no voltage is applied and a horizontal electric field is applied to display the liquid crystal composition, and the necessity of a liquid crystal composition having a positive ⁇ is further increased. Yes.
  • low voltage driving, high-speed response, and a wide operating temperature range are required in all driving systems.
  • ⁇ is positive, the absolute value is large, the viscosity ( ⁇ ) is small, and a high nematic phase-isotropic liquid phase transition temperature (Tni) is required.
  • Tni nematic phase-isotropic liquid phase transition temperature
  • ⁇ n ⁇ d which is the product of ⁇ n and the cell gap (d)
  • ⁇ n of the liquid crystal composition it is necessary to adjust ⁇ n of the liquid crystal composition to an appropriate range according to the cell gap.
  • a liquid crystal composition having a low rotational viscosity ( ⁇ 1) is required.
  • Examples of the composition of the liquid crystal composition aimed at high-speed response include, for example, a compound represented by the formula (A-1) or (A-2) in which ⁇ is a positive liquid crystal compound, and a liquid crystal compound in which ⁇ is neutral.
  • a liquid crystal composition using a combination of (B) is disclosed.
  • As characteristics of these liquid crystal compositions it is widely known in the field of liquid crystal compositions that a liquid crystal compound having a positive ⁇ has a —CF 2 O— structure and that a liquid crystal compound having a negative ⁇ has an alkenyl group. (Patent Documents 1 to 4).
  • liquid crystal display elements using a liquid crystal composition are widely used, such as VA type and IPS type, and super large size display elements having a size of 50 type or more are practically used. Became.
  • the substrate size increased, the method of injecting the liquid crystal composition into the substrate also changed, and the drop injection (ODF: One Drop Fill) method became the main method of injection from the conventional vacuum injection method.
  • ODF Drop Fill
  • the liquid crystal composition is less affected by, for example, a sudden pressure change or impact in the dropping device that occurs when the liquid crystal is dropped, and can be stably dropped over a long period of time. There is a need to be able to continue.
  • the high-speed response performance required as the liquid crystal display element is taken into consideration while considering the manufacturing method of the liquid crystal display element.
  • the problem to be solved by the present invention is a liquid crystal composition having a positive ⁇ , a liquid crystal phase in a wide temperature range, low viscosity, good solubility at low temperature, specific resistance and voltage holding ratio.
  • a liquid crystal composition comprising a compound represented by the following formula (i) and formula (ii):
  • R L1 and R L2 each independently represent an alkyl group having 1 to 8 carbon atoms, and one or non-adjacent at least two —CH 2 in the alkyl group. Each — may be independently substituted by —CH ⁇ CH—, —C ⁇ C—, —O—, —CO—, —COO— or —OCO—, where OL is 0, 1, 2, or 3;
  • B L1 , B L2 and B L3 each independently represent (a) a 1,4-cyclohexylene group (one —CH 2 — present in this group or at least two not adjacent to each other).
  • liquid crystal composition according to (1) or (2) further including at least one compound represented by the following general formula (M).
  • R M1 represents an alkyl group having 1 to 8 carbon atoms, and one or non-adjacent at least two —CH 2 — in the alkyl group are each independently Optionally substituted by —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 (d) a 1,4-cyclohexylene group (one —CH 2 — present in the group or at least two —CH 2 — not adjacent to each other) And (e) a 1,4-phenylene group (one —CH ⁇ present in this group, or at least two —CH that are not adjacent to each other).
  • K M1 and K M2 are each independently 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—, where PM is 2 3 or 4 and a plurality of K M1 may be the same or different, and when PM is 2, 3 or 4 and a plurality of C M2 exists, they are 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, Trifluor
  • a liquid crystal display device using the liquid crystal composition according to any one of (1) to (3) uses the liquid crystal composition according to any one of (1) to (3).
  • a liquid crystal display element for IPS mode characterized in that the liquid crystal composition according to any one of (1) to (3) is used.
  • a liquid crystal display element for OCB mode wherein the liquid crystal composition according to any one of (1) to (3) is used.
  • a liquid crystal display element for ECB mode wherein the liquid crystal composition according to any one of (1) to (3) is used.
  • a liquid crystal display element for VA mode characterized in that the liquid crystal composition according to any one of (1) to (3) is used.
  • a liquid crystal display element for VA-IPS mode wherein the liquid crystal composition according to any one of (1) to (3) is used.
  • a liquid crystal display element for FFS mode characterized in that the liquid crystal composition according to any one of (1) to (3) is used.
  • the liquid crystal composition having a positive dielectric anisotropy of the present invention has significantly improved solubility at a lower temperature than the conventional one while maintaining low viscosity, high specific resistance, and high voltage holding ratio.
  • the liquid crystal display element manufacturing process based on the ODF method can stably continue dripping over a long period of time.
  • the liquid crystal composition of the present invention can produce a liquid crystal display element exhibiting excellent display quality with suppressed display defects due to the manufacturing process, and has high practicality (applicability) to liquid crystal products, A liquid crystal display element using this can achieve a high-speed response.
  • a board having 100 to 105 is called a “back plane”, and a board having 200 to 205 is called a “front plane”. It is a figure of the exposure process using the pattern for columnar spacer formation formed on a black matrix as a photomask pattern.
  • the liquid crystal composition of the present invention contains a compound represented by formula (i) and a compound represented by formula (ii).
  • the liquid crystal composition will be described below, but “%” not specifically indicated means “mass%”.
  • preferable content of each compound preferable content in case the said compound is mix
  • the content of the compound represented by formula (i) in the liquid crystal composition is not particularly limited, but is preferably 1% by mass or more with respect to the total mass of the liquid crystal composition, and is 5% by mass or more. 8 mass% or more is preferable, 10 mass% or more is preferable, 14 mass% or more is preferable, and 16 mass% or more is preferable.
  • the content of the compound represented by formula (i) in the liquid crystal composition is:
  • the total mass of the liquid crystal composition is preferably 30% by mass or less, preferably 25% by mass or less, preferably 22% by mass or less, and preferably 20% by mass or less.
  • the content of the compound represented by formula (i) in the liquid crystal composition is preferably 1 to 30% by mass with respect to the total mass of the liquid crystal composition of the present invention, It is preferably 1 to 25% by mass, preferably 1 to 19% by mass, preferably 1 to 5% by mass, and in another embodiment, preferably 5 to 15% by mass, It is preferably 7 to 12% by mass, and in another embodiment, it is preferably 8 to 20% by mass, preferably 10 to 19% by mass, and preferably 10 to 15% by mass.
  • the content of the compound represented by the formula (ii) in the liquid crystal composition is 1% by mass with respect to the total mass of the liquid crystal composition of the present invention, from the viewpoint of response speed, electrical and optical reliability. It is preferable to contain 3% by mass or more, preferably 5% by mass or more, preferably 8% by mass or more, preferably 10% by mass or more, preferably 13% by mass. The content is preferably 15% by mass or more, more preferably 18% by mass or more, and preferably 20% by mass or more. On the other hand, the content of the compound represented by formula (ii) in the liquid crystal composition is preferably 35% by mass or less, and preferably 30% by mass or less, based on the total mass of the liquid crystal composition of the present invention.
  • the content of the compound represented by formula (ii) in the liquid crystal composition is preferably 1 to 35% by mass with respect to the total mass of the liquid crystal composition of the present invention, It is preferably 1 to 30% by mass, preferably 1 to 25% by mass, preferably 1 to 20% by mass, preferably 1 to 5% by mass.
  • It is preferably 3 to 15% by mass, preferably 5 to 12% by mass, and in another embodiment, preferably 8 to 25% by mass, and preferably 10 to 20% by mass, It is preferably 13 to 19% by mass, more preferably 15 to 35% by mass, and in another embodiment, it is preferably 18 to 30% by mass, and preferably 20 to 26% by mass.
  • the total content of the compound represented by formula (i) and the compound represented by formula (ii) is preferably 5% by mass or more, and 8% by mass with respect to the total mass of the liquid crystal composition.
  • the above is preferable, 10 mass% or more is preferable, 50 mass% or less is preferable, 45 mass% or less is preferable, 40 mass% or less is preferable, and 35 mass% or less is preferable. .
  • 20 to 40% by mass is preferable, 25 to 35% by mass is preferable, 27 to 33% by mass is preferable, and in another embodiment, 10 to 30% by mass is preferable. It is preferably 15 to 28% by mass, preferably 17 to 25% by mass, preferably 5 to 25% by mass, and preferably 7 to 20% by mass, It is preferably 9 to 18% by mass.
  • the liquid crystal composition of the present invention may further contain at least one compound represented by the general formula (L).
  • R L1 and R L2 each independently represent an alkyl group having 1 to 8 carbon atoms, and one or non-adjacent at least two —CH 2 in the alkyl group. Each — may be independently substituted by —CH ⁇ CH—, —C ⁇ C—, —O—, —CO—, —COO— or —OCO—.
  • OL represents 0, 1, 2 or 3.
  • B L1 , B L2 and B L3 are each independently (A) 1,4-cyclohexylene group (this is present in the group one -CH 2 - or non-adjacent at least two -CH 2 - may be replaced by -O-), and , (B) a 1,4-phenylene group (one —CH ⁇ present in the group or at least two non-adjacent —CH ⁇ may be replaced by —N ⁇ ), Represents a group selected from the group consisting of At least one hydrogen atom in the groups (a) and (b) may be independently 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 ⁇ NN—CH—, —CH ⁇ CH—, —CF ⁇ CF— or —C ⁇ C— is represented.
  • OL is 2 or 3 and a plurality of L L2 are present, they may be the same or different.
  • OL is 2 or 3, and there are a plurality of BL3 , they may be the same or different.
  • the compound represented by the formula (ii) is excluded.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four types. Furthermore, in another embodiment of the present invention, there are five types. Furthermore, in another embodiment of the present invention, there are six types. Furthermore, in another embodiment of the present invention, there are seven types. Furthermore, in another embodiment of this invention, they are eight types. Furthermore, in another embodiment of the present invention, there are nine types. Furthermore, in another embodiment of this invention, it is ten or more types.
  • the content of the compound represented by the general formula (L) is low temperature solubility, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, It is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 95% by mass in one embodiment of the present invention.
  • the content is 10% to 95% by mass.
  • the content is 20% to 95% by mass.
  • the content is 30% to 95% by mass.
  • the content is 40% to 95% by mass.
  • the content is 50% to 95% by mass.
  • the content is 55% to 95% by mass.
  • the content is 60% to 95% by mass.
  • the content is 65% to 95% by mass. In still another embodiment of the present invention, the content is 70% to 95% by mass. In still another embodiment of the present invention, the content is 75% to 95% by mass. In still another embodiment of the present invention, the content is 80% to 95% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 95% by mass in one embodiment of the present invention.
  • the content is 1% to 85% by mass.
  • the content is 1% to 75% by mass.
  • the content is 1% to 65% by mass.
  • the content is 1% to 55% by mass.
  • the content is 1% to 45% by mass.
  • the content is 1% to 35% by mass.
  • the content is 1% to 25% by mass.
  • the above lower limit value is preferably high and the upper limit value is preferably high. Furthermore, when the liquid crystal composition of the present invention maintains a high Tni and a liquid crystal composition with good temperature stability is required, the above lower limit value is preferably high and the upper limit value is high. When it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the lower limit value is low and the upper limit value is low.
  • R L1 and R L2 are each a linear alkyl group having 1 to 5 carbon atoms or a linear alkyl group having 1 to 4 carbon atoms when the ring structure to which R L1 is bonded is a phenyl group (aromatic). (Or more) alkoxy groups or alkenyl groups having 4 to 5 carbon atoms are preferred, and when the ring structure to which they are bonded is a saturated ring structure such as cyclohexane, pyran, or dioxane, An alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 (or more) carbon atoms, or a linear alkenyl group having 2 to 5 carbon atoms is preferable.
  • the compound represented by the general formula (L) preferably has no chlorine atom in the molecule when chemical stability of the liquid crystal composition is required.
  • the compound represented by general formula (L) is preferably, for example, a compound selected from the group of compounds represented by general formula (I).
  • R 11 and R 12 are each independently an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms.
  • Each of A 11 and A 12 independently represents 1,4-cyclohexylene group, 1,4-phenylene group, 2-fluoro-1,4-phenylene group or 3-fluoro-1,4-phenylene. Represents a group. However, the compound represented by the formula (ii) is excluded.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four types. Furthermore, in another embodiment of the present invention, there are five types. Furthermore, in another embodiment of this invention, they are six or more types.
  • the content of the compound represented by the general formula (I) includes solubility at a low temperature, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, It is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound represented by the general formula (I) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 75% by mass in one embodiment of the present invention.
  • the content is 15% to 75% by mass.
  • the content is 18% to 75% by mass.
  • the content is 20% to 75% by mass.
  • the content is 29% to 75% by mass.
  • the content is 35% to 75% by mass.
  • the content is 42% to 75% by mass.
  • the content is 47% to 75% by mass.
  • the content is 53% to 75% by mass. In still another embodiment of the present invention, the content is 56% to 75% by mass. In still another embodiment of the present invention, the content is 60% to 75% by mass. In still another embodiment of the present invention, the content is 65% to 75% by mass.
  • the content of the compound represented by the general formula (I) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 65 mass% in one embodiment of the present invention.
  • the content is 3% to 55% by mass.
  • the content is 3% to 50% by mass.
  • the content is 3% to 45% by mass.
  • the content is 3% to 40% by mass.
  • the content is 3% to 35% by mass.
  • the content is 3% to 30% by mass.
  • the above lower limit value is preferably high and the upper limit value is preferably high. Furthermore, when the liquid crystal composition of the present invention maintains a high Tni and a liquid crystal composition with good temperature stability is required, it is preferable that the above lower limit value is medium and the upper limit value is medium. When it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the lower limit value is low and the upper limit value is low.
  • R 11 and R 12 are each a linear alkyl group having 1 to 5 carbon atoms or a linear carbon atom having 1 to 4 carbon atoms when the ring structure to which R 11 and R 12 are bonded is a phenyl group (aromatic). Or an alkenyl group having 4 to 5 carbon atoms, and when the ring structure to which it is bonded is a saturated ring structure such as cyclohexane, pyran or dioxane, a straight chain carbon atom having 1 to 5 carbon atoms Are preferably a linear alkyl group having 1 to 4 carbon atoms or a linear alkenyl group having 2 to 5 carbon atoms.
  • the compound represented by the general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-1).
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkenyl having 2 to 5 carbon atoms. Represents a group. However, the compound represented by the formula (ii) is excluded.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four types. Furthermore, in another embodiment of this invention, they are five or more types.
  • the content of the compound when a compound represented by the general formula (I-1) is blended, the content of the compound includes solubility at low temperature, transition temperature, electrical reliability, birefringence It is necessary to adjust appropriately according to performance required, such as a rate, process compatibility, dripping trace, image sticking, and dielectric anisotropy.
  • the content of the compound represented by the general formula (I-1) is 3 to 70% by mass based on the total mass of the liquid crystal composition of the present invention. It is. Alternatively, in another embodiment of the present invention, the content is 15% to 70% by mass. In still another embodiment of the present invention, the content is 18% to 70% by mass. In still another embodiment of the present invention, the content is 25% to 70% by mass. In still another embodiment of the present invention, the content is 29% to 70% by mass. In still another embodiment of the present invention, the content is 31% to 70% by mass. In still another embodiment of the present invention, the content is 35% to 70% by mass. In still another embodiment of the present invention, the content is 43% to 70% by mass.
  • the content is 47% to 70% by mass. In still another embodiment of the present invention, the content is 50% to 70% by mass. In still another embodiment of the present invention, the content is 53% to 70% by mass. In still another embodiment of the present invention, the content is 56% to 70% by mass.
  • the content of the compound represented by the general formula (I-1) is 3 to 60% by mass with respect to the total mass of the liquid crystal composition of the present invention. .
  • the content is 3% to 50% by mass.
  • the content is 3% to 45% by mass.
  • the content is 3% to 40% by mass.
  • the content is 3% to 35% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 26% by mass.
  • the above lower limit value is preferably high and the upper limit value is preferably high. Furthermore, when the liquid crystal composition of the present invention maintains a high Tni and a liquid crystal composition with good temperature stability is required, it is preferable that the above lower limit value is medium and the upper limit value is medium. When it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the lower limit value is low and the upper limit value is low.
  • the compound represented by the general formula (I-1) is preferably at least one compound selected from the group of compounds represented by the general formula (I-1-1).
  • R 12 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 5 carbon atoms. However, the compound represented by the formula (ii) is excluded.
  • the content of the compound represented by the general formula (I-1-1) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, and process suitability. In addition, it is necessary to appropriately adjust according to required performance such as dripping marks, image sticking, and dielectric anisotropy.
  • the content of the compound represented by the general formula (I-1-1) is 2 to 30% by mass with respect to the total mass of the liquid crystal composition of the present invention. .
  • the content is 4% to 30% by mass.
  • the content is 7% to 30% by mass.
  • the content is 9% to 30% by mass.
  • the content is 10% to 30% by mass.
  • the content is 13% to 30% by mass.
  • the content is 17% to 30% by mass.
  • the content of the compound represented by the general formula (I-1-1) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 25% by mass in one embodiment of the present invention. In another embodiment of the present invention, the content is 2% to 20% by mass. In still another embodiment of the present invention, the content is 2% to 15% by mass. In still another embodiment of the present invention, the content is 2% to 10% by mass.
  • the compound represented by the general formula (I-1-1) is preferably a compound represented by the formula (1.1) and / or the formula (1.2). .2) is more preferable.
  • the compound represented by the general formula (I-1) is preferably at least one compound selected from the group of compounds represented by the general formula (I-1-2).
  • R 12 represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types.
  • the content of the compound represented by the general formula (I-1-2) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, It is necessary to adjust appropriately according to required performance such as dripping marks, image sticking, and dielectric anisotropy.
  • the content of the compound represented by the general formula (I-1-2) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 5 to 60% by mass in one embodiment of the present invention. .
  • the content is 15% to 60% by mass.
  • the content is 20% to 60% by mass.
  • the content is 22% to 60% by mass.
  • the content is 24% to 60% by mass.
  • the content is 28% to 60% by mass.
  • the content is 30% to 60% by mass.
  • the content is 34% to 60% by mass.
  • the content is 37% to 60% by mass.
  • the content is 41% to 60% by mass.
  • the content is 43% to 60% by mass.
  • the content of the compound represented by the general formula (I-1-2) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 5 to 55 mass% in one embodiment of the present invention. .
  • the content is 5% to 47% by mass.
  • the content is 5% to 40% by mass.
  • the content is 5% to 37% by mass.
  • the content is 5% to 30% by mass.
  • the content is 5% to 26% by mass.
  • the content is 5% to 20% by mass.
  • the compound represented by the general formula (I-1-2) is preferably at least one compound selected from the group of compounds represented by the formulas (2.1) to (2.4). It is preferably at least one compound selected from the group of compounds represented by formulas (2.2) to (2.4).
  • the compound represented by the formula (2.2) is preferable because the response speed of the liquid crystal composition of the present invention is particularly improved.
  • the content of the compounds represented by formula (2.3) and formula (2.4) is not preferably 30% by mass or more in order to improve the solubility at low temperatures.
  • the content of the compound represented by the formula (2.2) is preferably 5% by mass or more and 55% by mass or less with respect to the total mass of the liquid crystal composition of the present invention. More preferable examples of the content include 10% by mass to 50% by mass, 14% by mass to 47% by mass, 17% by mass to 40% by mass, 19% by mass to 40% by mass, and 22% by mass to 40%. % By mass or less, 25% by mass to 40% by mass, 27% by mass to 40% by mass, 30% by mass to 40% by mass, 33% by mass to 40% by mass, and 36% by mass to 40% by mass. Can be mentioned.
  • the content of the compound represented by the formula (2.3) is preferably 5% by mass to 55% by mass with respect to the total mass of the liquid crystal composition of the present invention. It is preferably 6% by mass to 45% by mass, preferably 6% by mass to 35% by mass, more preferably 6% by mass to 30% by mass, and 6% by mass to 25% by mass. It is preferable that it is 6 mass% or more and 25 mass% or less, and it is preferable that it is 6 mass% or more and 15 mass% or less.
  • the content of the compound represented by the formula (2.4) is preferably 1% by mass or more and 55% by mass or less with respect to the total mass of the liquid crystal composition of the present invention. It is preferably 3% by mass or less and 45% by mass or less, preferably 3% by mass or more and 35% by mass or less, preferably 3% by mass or more and 25% by mass or less, and preferably 3% by mass or more and 15% by mass or less. It is preferably 5% by mass or more and 15% by mass or less, preferably 5% by mass or more and 10% by mass or less, and more preferably 5% by mass or more and 8% by mass or less.
  • the liquid crystal composition of the present invention may further contain a compound represented by the formula (2.5) having a structure similar to that of the compound represented by the general formula (I-1-2).
  • the content of the compound represented by the formula (2.5) is preferable to adjust the content of the compound represented by the formula (2.5) according to required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. Is preferably 11% by mass or more based on the total mass of the liquid crystal composition of the present invention, preferably 15% by mass or more, preferably 23% by mass or more, and 26% by mass or more. It is preferable to contain 28% by mass or more.
  • the compound represented by the general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-2).
  • R 13 and R 14 each independently represents an alkyl group having 1 to 5 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types.
  • the content of the compound represented by the general formula (I-2) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping. It is necessary to adjust appropriately according to the required performance such as marks, image sticking, and dielectric anisotropy.
  • the content of the compound represented by the general formula (I-2) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 60% by mass in one embodiment of the present invention.
  • the content is 4% to 60% by mass.
  • the content is 15% to 60% by mass.
  • the content is 25% to 60% by mass.
  • the content is 30% to 60% by mass.
  • the content is 35% to 60% by mass.
  • the content is 38% to 60% by mass.
  • the content is 40% to 60% by mass.
  • the content is 42% to 60% by mass. In still another embodiment of the present invention, the content is 45% to 60% by mass. In still another embodiment of the present invention, the content is 47% to 60% by mass. In still another embodiment of the present invention, the content is 50% to 60% by mass.
  • the content of the compound represented by the general formula (I-2) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 60% by mass in one embodiment of the present invention.
  • the content is 3% to 55% by mass.
  • the content is 3% to 45% by mass.
  • the content is 3% to 40% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 20% by mass.
  • the content is 3% to 15% by mass.
  • the content is 3% to 5% by mass.
  • the compound represented by the general formula (I-2) is preferably at least one compound selected from the group of compounds represented by formulas (3.1) to (3.4), A compound represented by formula (3.1), formula (3.3) and / or formula (3.4) is preferable.
  • the compound represented by the formula (3.2) is preferable because the response speed of the liquid crystal composition of the present invention is particularly improved.
  • the content of the compounds represented by the formulas (3.3) and (3.4) is not preferably 20% by mass or more in order to improve the solubility at low temperatures.
  • the content of the compound represented by the formula (3.3) is preferably 2% by mass or more and 40% by mass or less based on the total mass of the liquid crystal composition of the present invention. . More preferable content is, for example, 3% to 40% by mass, 4% to 40% by mass, 10% to 40% by mass, 12% to 40% by mass, 14% to 40% by mass.
  • % By mass or less, 16% by mass to 40% by mass, 20% by mass to 40% by mass, 23% by mass to 40% by mass, 26% by mass to 40% by mass, 30% by mass to 40% by mass, 34 % By mass to 40% by mass, 37% by mass to 40% by mass, or 3% by mass to 4% by mass, 3% by mass to 10% by mass, 3% by mass to 12% by mass, 3% by mass or more 14 mass% or less, 3 mass% or more and 16 mass% or less, 3 mass% or more and 20 mass% or less, 3 mass% or more and 23 mass% or less, 3 mass% or more and 26 mass% or less, 3 mass% or more and 30 mass% or less, 3% by mass or more 34
  • the amount percent include 37 wt% or less 3 wt% or more.
  • the compound represented by the general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-3).
  • R 13 represents an alkyl group having 1 to 5 carbon atoms
  • R 15 represents an alkoxy group having 1 to 4 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types.
  • the content of the compound represented by the general formula (I-3) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping It is necessary to adjust appropriately according to the required performance such as marks, image sticking, and dielectric anisotropy.
  • the content of the compound represented by the general formula (I-3) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 60% by mass in one embodiment of the present invention.
  • the content is 4% to 60% by mass.
  • the content is 15% to 60% by mass.
  • the content is 25% to 60% by mass.
  • the content is 30% to 60% by mass.
  • the content is 35% to 60% by mass.
  • the content is 38% to 60% by mass.
  • the content is 40% to 60% by mass.
  • the content is 42% to 60% by mass. In still another embodiment of the present invention, the content is 45% to 60% by mass. In still another embodiment of the present invention, the content is 47% to 60% by mass. In still another embodiment of the present invention, the content is 50% to 60% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 55 mass% in one embodiment of the present invention.
  • the content is 3% to 45% by mass.
  • the content is 3% to 40% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 20% by mass.
  • the content is 3% to 15% by mass.
  • the content is 3% to 5% by mass.
  • the compound represented by the general formula (I-3) is preferably at least one compound selected from the group of compounds represented by formulas (4.1) to (4.3), It is preferable that it is a compound represented by Formula (4.3).
  • the content of the compound represented by the formula (4.3) is preferably 2% by mass or more and 30% by mass or less, and preferably 4% by mass or more and 30% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • % Or less preferably 6% by mass or more and 30% by mass or less, preferably 8% by mass or more and 30% by mass or less, and preferably 10% by mass or more and 30% by mass or less, It is preferably 12% by mass to 30% by mass, preferably 14% by mass to 30% by mass, more preferably 16% by mass to 30% by mass, and 18% by mass to 25% by mass. It is preferable that it is 20 mass% or more and 24 mass% or less, and it is preferable that it is 22 mass% or more and 23 mass% or less.
  • the compound represented by the general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-4).
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy having 1 to 4 carbon atoms. Represents a group.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types.
  • the content of the compound represented by the general formula (I-4) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping It is necessary to adjust appropriately according to the required performance such as marks, image sticking, and dielectric anisotropy.
  • the content of the compound represented by the general formula (I-4) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 50% by mass in one embodiment of the present invention.
  • the content is 5% to 50% by mass.
  • the content is 6% to 50% by mass.
  • the content is 8% to 50% by mass.
  • the content is 10% to 50% by mass.
  • the content is 12% to 50% by mass.
  • the content is 15% to 50% by mass.
  • the content is 20% to 50% by mass.
  • the content is 25% to 50% by mass. In still another embodiment of the present invention, the content is 30% to 50% by mass. In still another embodiment of the present invention, the content is 35% to 50% by mass. In still another embodiment of the present invention, the content is 40% to 50% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, in the form of the present invention, the content is 2 to 40% by mass. In still another embodiment of the present invention, the content is 2% to 35% by mass. In still another embodiment of the present invention, the content is 2% to 30% by mass. In still another embodiment of the present invention, the content is 2% to 20% by mass. In still another embodiment of the present invention, the content is 2% to 15% by mass. In still another embodiment of the present invention, the content is 2% to 10% by mass. In still another embodiment of the present invention, the content is 2% to 5% by mass.
  • the effect is high when the content is set to be large.
  • the effect is high when the content is set low.
  • the compound represented by the general formula (I-4) is preferably at least one compound selected from the group of compounds represented by the formulas (5.1) to (5.4). It is preferably at least one compound selected from the group of compounds represented by formula (5.2) to formula (5.4).
  • the content of the compound represented by the formula (5.4) is preferably 2% by mass or more and 30% by mass or less with respect to the total mass of the liquid crystal composition of the present invention. More preferable content is, for example, 4% by mass to 30% by mass, 6% by mass to 30% by mass, 8% by mass to 30% by mass, 10% by mass to 30% by mass, 12% by mass to 30% by mass.
  • % Or less 14% to 30% by mass, 16% to 30% by mass, 18% to 30% by mass, 20% to 30% by mass, 22% to 30% by mass, 23% % To 30% by mass, 24% to 30% by mass, 25% to 30% by mass, 2% to 6% by mass, 2% to 8% by mass, 2% to 10% 2 mass% or less, 2 mass% or more, 12 mass% or less, 2 mass% or more, 14 mass% or less, 2 mass% or more, 16 mass% or less, 2 mass% or more, 18 mass% or less, 2 mass% or more, 20 mass% or less, 2 22% by mass or more
  • the compound represented by the general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-5).
  • R 11 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
  • R 12 represents a carbon atom.
  • An alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms is represented.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types.
  • the content of the compound represented by the general formula (I-5) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping It is necessary to adjust appropriately according to the required performance such as marks, image sticking, and dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 50% by mass in one embodiment of the present invention.
  • the content is 5% to 50% by mass.
  • the content is 8% to 50% by mass.
  • the content is 11% to 50% by mass.
  • the content is 13% to 50% by mass.
  • the content is 15% to 50% by mass.
  • the content is 17% to 50% by mass.
  • the content is 20% to 50% by mass.
  • the content is 25% to 50% by mass.
  • the content is 30% to 50% by mass.
  • the content is 35% to 50% by mass.
  • the content is 40% to 50% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 40% in one embodiment of the present invention. In still another embodiment of the present invention, the content is 1% to 35%. In still another embodiment of the present invention, the content is 1% to 30%. In still another embodiment of the present invention, the content is 1% to 20%. In still another embodiment of the present invention, the content is 1% to 15%. In still another embodiment of the present invention, the content is 1% to 10%. In still another embodiment of the present invention, the content is 1% to 8%.
  • the compound represented by the general formula (I-5) is preferably at least one compound selected from the group of compounds represented by formulas (6.1) to (6.6), A compound represented by Formula (6.3), Formula (6.4), and / or Formula (6.6) is preferable.
  • the content of the compound represented by the formula (6.6) is preferably 2% by mass or more and 30% by mass or less, and preferably 4% by mass or more and 30% by mass with respect to the total mass of the liquid crystal composition of the present invention. It is preferably 5% by mass or less, preferably 5% by mass or more and 30% by mass or less, preferably 6% by mass or more and 30% by mass or less, and more preferably 9% by mass or more and 30% by mass or less. 12 mass% to 30 mass%, preferably 14 mass% to 30 mass%, preferably 16 mass% to 30 mass%, 18 mass% to 25 mass% The content is preferably 20% by mass or more and 24% by mass or less, and more preferably 22% by mass or more and 23% by mass or less.
  • the liquid crystal composition of the present invention may further contain a compound represented by formula (6.7) and / or a compound represented by formula (6.8) as the compound represented by general formula (I-5). it can.
  • the content of the compound represented by the formula (6.7) is preferable to adjust the content of the compound represented by the formula (6.7) according to required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the compound represented by the general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-6).
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • X 11 and X 12 each independently represent a fluorine atom or a hydrogen atom, and either X 11 or X 12 is a fluorine atom.
  • the content of the compound represented by the general formula (I-6) is preferably 2% by mass or more and 30% by mass or less with respect to the total mass of the liquid crystal composition of the present invention, and is 4% by mass or more and 30% by mass. % Or less, preferably 5% by mass or more and 30% by mass or less, preferably 6% by mass or more and 30% by mass or less, and preferably 9% by mass or more and 30% by mass or less, It is preferably 12% by mass to 30% by mass, preferably 14% by mass to 30% by mass, more preferably 16% by mass to 30% by mass, and 18% by mass to 25% by mass. It is preferable that it is 20 mass% or more and 24 mass% or less, and it is preferable that it is 22 mass% or more and 23 mass% or less.
  • the compound represented by the general formula (I-6) is preferably a compound represented by the formula (7.1).
  • the compound represented by the general formula (I) is preferably a compound selected from the group of compounds represented by the general formula (I-7).
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy having 1 to 4 carbon atoms. Represents a group, and X 12 represents a fluorine atom or a chlorine atom.
  • the content of the compound represented by the general formula (I-7) is preferably 1% by mass or more and 30% by mass or less, and preferably 1% by mass or more and 25% by mass with respect to the total mass of the liquid crystal composition of the present invention. % Or less, preferably 1% by mass or more and 24% by mass or less, and more preferably 1% by mass or more and 22% by mass or less.
  • the compound represented by the general formula (I-7) is preferably a compound represented by the formula (8.1).
  • the compound represented by the general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-8).
  • R 16 and R 17 each independently represents an alkenyl group having 2 to 5 carbon atoms.
  • the content of the compound represented by the general formula (I-8) is low temperature solubility, transition temperature, electrical reliability, birefringence index, process suitability, drop mark, image sticking, anisotropic dielectric constant. Depending on the required performance such as properties, it is preferably 5% by mass or more and 65% by mass or less, and preferably 7% by mass or more and 65% by mass or less, based on the total mass of the liquid crystal composition of the present invention. It is preferably 5% by mass or more and 55% by mass or less, preferably 5% by mass or more and 45% by mass or less, preferably 5% by mass or more and 30% by mass or less, and more preferably 5% by mass or more and 25% by mass or less. It is preferable that it is 5 mass% or more and 15 mass% or less.
  • the compound represented by the general formula (I-8) is preferably at least one compound selected from the group of compounds represented by formulas (9.1) to (9.10), It is preferable that it is a compound represented by Formula (9.2), Formula (9.4), and / or Formula (9.7).
  • the compound represented by the general formula (L) is preferably at least one compound selected from, for example, compounds represented by the general formula (II).
  • R 21 and R 22 each independently represents an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • a 2 represents a 1,4-cyclohexylene group or 1,4-phenylene group
  • Q 2 is a single bond, -COO -, - CH 2 -CH 2 - or an -CF 2 O-.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In still another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four or more types.
  • the content of the compound represented by the general formula (II) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, It is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound represented by the general formula (II) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 50% by mass in one embodiment of the present invention.
  • the content is 5% to 50% by mass.
  • the content is 7% to 50% by mass.
  • the content is 10% to 50% by mass.
  • the content is 14% to 50% by mass.
  • the content is 16% to 50% by mass.
  • the content is 20% to 50% by mass.
  • the content is 23% to 50% by mass.
  • the content is 26% to 50% by mass. In still another embodiment of the present invention, the content is 30% to 50% by mass. In still another embodiment of the present invention, the content is 35% to 50% by mass. In still another embodiment of the present invention, the content is 40% to 50% by mass.
  • the content of the compound represented by the general formula (II) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 40% by mass in one embodiment of the present invention.
  • the content is 3% to 35% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 20% by mass.
  • the content is 3% to 15% by mass.
  • the content is 3% to 10% by mass.
  • the content is 3% to 5% by mass.
  • the compound represented by the general formula (II) is preferably at least one compound selected from the group of compounds represented by the general formula (II-1), for example.
  • R 21 and R 22 each independently represents an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy having 1 to 4 carbon atoms. Represents a group.
  • the content of the compound represented by the general formula (II-1) is preferably adjusted according to required performance such as solubility at low temperature, transition temperature, electrical reliability, birefringence, 4 mass% or more and 24 mass% or less are preferable, it is preferable that they are 8 mass% or more and 18 mass% or less, and it is still more preferable that they are 12 mass% or more and 14 mass% or less.
  • the compound represented by the general formula (II-1) is preferably a compound represented by the formula (10.1) and / or the formula (10.2), for example.
  • the compound represented by the general formula (II) is preferably at least one compound selected from the group of compounds represented by the general formula (II-2), for example.
  • R 23 represents an alkenyl group having 2 to 5 carbon atoms
  • R 24 represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, it is two or more types.
  • the content of the compound represented by the general formula (II-2) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping. It is necessary to adjust appropriately according to the required performance such as marks, image sticking, and dielectric anisotropy.
  • the content of the compound represented by the general formula (II-2) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 50% by mass in one embodiment of the present invention.
  • the content is 5% to 50% by mass.
  • the content is 8% to 50% by mass.
  • the content is 10% to 50% by mass.
  • the content is 12% to 50% by mass.
  • the content is 16% to 50% by mass.
  • the content is 20% to 50% by mass.
  • the content is 24% to 50% by mass.
  • the content is 26% to 50% by mass.
  • the content of the compound represented by the general formula (II-2) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 40% by mass in one embodiment of the present invention.
  • the content is 3% to 35% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 20% by mass.
  • the content is 3% to 15% by mass.
  • the content is 3% to 10% by mass.
  • the content is 3% to 5% by mass.
  • the compound represented by the general formula (II-2) is preferably at least one compound selected from the group of compounds represented by the formulas (11.1) to (11.3), for example. .
  • the content of the compound represented by the formula (11.1) is preferably 2% by mass or more and 40% by mass or less, and preferably 2% by mass or more and 35% by mass with respect to the total mass of the liquid crystal composition of the present invention. It is preferably 2% by mass or more and 30% by mass or less, preferably 2% by mass or more and 25% by mass or less, and more preferably 2% by mass or more and 20% by mass or less.
  • 2 mass% to 16 mass%, 4 mass% to 16 mass%, 6 mass% to 16 mass%, 8 mass% to 16 mass%, 2 mass% to 14 mass% 2 mass% or more and 12 mass% or less, 2 mass% or more and 10 mass% or less, 2 mass% or more and 8 mass% or less are preferable.
  • the content of the compound represented by the formula (11.2) is preferably 2% by mass or more and 40% by mass or less with respect to the total mass of the liquid crystal composition of the present invention, and 2% by mass or more and 35% by mass. It is preferably at most 2 mass%, preferably at least 2 mass% and at most 30 mass%, preferably at least 2 mass% and at most 25 mass%, preferably at least 2 mass% and at most 20 mass%. It is preferable that they are 2 mass% or more and 15 mass% or less. Among these, for example, 3% by mass to 12% by mass, 3% by mass to 10% by mass, 3% by mass to 8% by mass, 3% by mass to 6% by mass, and 6% by mass to 15% by mass. 8 mass% or more and 15 mass% or less, 10 mass% or more and 15 mass% or less, and 12 mass% or more and 15 mass% or less are preferable.
  • the total mass of both compounds is the total mass of the liquid crystal composition of the present invention. 3 mass% or more and 45 mass% or less is preferable, 3 mass% or more and 40 mass% or less are preferable, and 3 mass% or more and 30 mass% or less are still more preferable.
  • the compound represented by the general formula (II) is preferably at least one compound selected from the group of compounds represented by the general formula (II-3), for example.
  • R 25 represents an alkyl group having 1 to 5 carbon atoms
  • R 24 represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (II-3) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, image sticking, and anisotropic dielectric constant. It is necessary to adjust appropriately according to the required performance such as property.
  • a preferable content of the compound represented by the general formula (II-3) is, for example, 2 to 45% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • More preferable content is, for example, 5 to 45% by mass, 8 to 45% by mass, 11 to 45% by mass, 14 to 45% by mass, 17 to 45% by mass, 20 to 45% by mass, 23 to 45% by mass, 26 to 45%, 29 to 45%, or 2 to 45%, 2 to 40%, 2 to 35%, 2 to 30%, 2 to 25%, 2 to 20%, 2 To 15% by mass and 2 to 10% by mass.
  • the compound represented by the general formula (II-3) is preferably at least one compound selected from the group of compounds represented by formula (12.1) to formula (12.3), for example. .
  • the content of the compound represented by the formula (12.1) is preferably 3% by mass or more and 40% by mass or less, and preferably 5% by mass or more and 40% by mass or less with respect to the total mass of the liquid crystal composition of the present invention. It is preferably 7 mass% or more and 40 mass% or less, preferably 9 mass% or more and 40 mass% or less, preferably 11 mass% or more and 40 mass% or less, and 12 mass%.
  • % To 40% by mass preferably 13% to 40% by mass, preferably 18% to 30% by mass, and 21% to 25% by mass. It is preferable.
  • the content of the compound represented by the formula (12.2) is preferably 3% by mass or more and 40% by mass or less with respect to the total mass of the liquid crystal composition of the present invention, and 5% by mass or more and 40% by mass. % Or less, preferably 8% to 40% by weight, preferably 10% to 40% by weight, preferably 12% to 40% by weight, It is preferably 15% by mass or more and 40% by mass or less, preferably 17% by mass or more and 30% by mass or less, and more preferably 19% by mass or more and 25% by mass or less.
  • the total mass of both compounds is with respect to the total mass of the liquid crystal composition of the present invention. It is preferably 15% by mass or more and 45% by mass or less, preferably 19% by mass or more and 45% by mass or less, more preferably 24% by mass or more and 40% by mass or less, and 30% by mass or more and 35% by mass or less. The following is preferable.
  • the content of the compound represented by the formula (12.3) is preferably 0.05% by mass or more and 2% by mass or less with respect to the total mass of the liquid crystal composition of the present invention, and 0.1% by mass. % To 1% by mass, and preferably 0.2% to 0.5% by mass.
  • the compound represented by the formula (12.3) may be an optically active compound.
  • the compound represented by the general formula (II-3) is preferably at least one compound selected from the compound group represented by the general formula (II-3-1), for example.
  • R 25 represents an alkyl group having 1 to 5 carbon atoms
  • R 26 represents an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (II-3-1) can be adjusted according to required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. It is preferably 1% by mass or more and 24% by mass or less, preferably 4% by mass or more and 18% by mass or less, and more preferably 6% by mass or more and 14% by mass or less.
  • the compound represented by the general formula (II-3-1) is, for example, at least one compound selected from the group of compounds represented by the formulas (13.1) to (13.4). Particularly preferred is a compound represented by formula (13.3).
  • the compound represented by the general formula (II) is preferably at least one compound selected from the group of compounds represented by the general formula (II-4), for example.
  • R 21 and R 22 are each independently an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkyl group having 1 to 4 carbon atoms. Represents an alkoxy group.
  • These compounds may contain only one kind or two or more kinds, but it is preferable to combine them appropriately according to the required performance.
  • the content of the compound represented by the general formula (II-4) is preferably 1% by mass or more and 15% by mass or less with respect to the total mass of the liquid crystal composition of the present invention, and is 2% by mass or more and 15% by mass. It is preferably 3% by mass or more and 15% by mass or less, preferably 4% by mass or more and 12% by mass or less, and more preferably 5% by mass or more and 7% by mass or less.
  • the compound represented by the general formula (II-4) is preferably at least one compound selected from the group of compounds represented by the formula (14.1) to the formula (14.5), In particular, a compound represented by formula (14.2) and / or formula (14.5) is preferable.
  • the compound represented by the general formula (L) is preferably at least one compound selected from the group of compounds represented by the general formula (III).
  • R 31 and R 32 each independently represent an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. Represents.
  • the content of the compound represented by the general formula (III) is 2% by mass or more and 25% by mass or less with respect to the total mass of the liquid crystal composition of the present invention in consideration of required solubility and birefringence. It is preferable to contain, it is preferable to contain 2 to 20 mass%, and it is preferable to contain 2 to 15 mass%.
  • the compound represented by the general formula (III) is preferably, for example, a compound represented by the formula (15.1) and / or the formula (15.2), and particularly the formula (15. It is preferable that it is a compound represented by 1).
  • the compound represented by the general formula (III) is preferably at least one compound selected from the group of compounds represented by the general formula (III-1).
  • R 33 represents an alkenyl group having 2 to 5 carbon atoms
  • R 32 represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (III-1) is preferably adjusted according to required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. From 4% by weight to 23% by weight, preferably from 6% by weight to 18% by weight, and preferably from 10% by weight to 13% by weight, based on the total weight of the liquid crystal composition of the present invention. Is preferred.
  • the compound represented by the general formula (III-1) is preferably, for example, a compound represented by the formula (16.1) and / or the formula (16.2).
  • the compound represented by the general formula (III) is preferably at least one compound selected from the group of compounds represented by the general formula (III-2).
  • R 31 represents an alkyl group having 1 to 5 carbon atoms
  • R 34 represents an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (III-2) is preferably adjusted according to required performance such as solubility at low temperature, transition temperature, electrical reliability, birefringence, 4 mass% or more and 23 mass% or less are preferable with respect to the total mass of the liquid-crystal composition of this invention, 6 mass% or more and 18 mass% or less are preferable, and it is 10 mass% or more and 13 mass% or less. preferable.
  • the compound represented by the general formula (III-2) is preferably at least one compound selected from the group of compounds represented by the formulas (17.1) to (17.3), for example, Particularly preferred is a compound represented by formula (17.3).
  • the compound represented by the general formula (L) is preferably at least one compound selected from the group of compounds represented by the general formula (IV).
  • R 41 and R 42 each independently represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms
  • X 41 and X 42 each represent Independently, it represents a hydrogen atom or a fluorine atom.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four types. Furthermore, in another embodiment of the present invention, there are five types. Furthermore, in another embodiment of this invention, they are six or more types.
  • the compound represented by the general formula (IV) is preferably at least one compound selected from the group of compounds represented by the general formula (IV-1), for example.
  • R 43 and R 44 each independently represents an alkyl group having 1 to 5 carbon atoms.
  • the content of the compound represented by the general formula (IV-1) is low temperature solubility, transition temperature, electrical reliability, birefringence index, process suitability, drop mark, image sticking, anisotropic dielectric constant. It is necessary to adjust appropriately according to the required performance such as property.
  • the content of the compound represented by the general formula (IV-1) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 40% by mass in one embodiment. In still another embodiment of the present invention, the content is 2% to 40% by mass. In still another embodiment of the present invention, the content is 3% to 40% by mass. In still another embodiment of the present invention, the content is 6% to 40% by mass. In still another embodiment of the present invention, the content is 8% to 40% by mass. In still another embodiment of the present invention, the content is 10% to 40% by mass. In still another embodiment of the present invention, the content is 12% to 40% by mass. In still another embodiment of the present invention, the content is 15% to 40% by mass.
  • the content of the compound represented by the general formula (IV-1) is 1 to 30% by mass with respect to the total mass of the liquid crystal composition of the present invention. is there.
  • the content is 1% to 25% by mass.
  • the content is 1% to 20% by mass.
  • the content is 1% to 17% by mass.
  • the content is 3% to 17% by mass.
  • the content is 3% to 10% by mass.
  • the content is 3% to 6% by mass.
  • the compound represented by the general formula (IV-1) is preferably at least one compound selected from the group of compounds represented by the formulas (18.1) to (18.9), for example. .
  • the compound represented by the general formula (IV) is preferably at least one compound selected from the group of compounds represented by the general formula (IV-2), for example.
  • R 45 and R 46 each independently represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, at least one of which is carbon Represents an alkenyl group having 2 to 5 atoms
  • X 41 and X 42 each independently represents a hydrogen atom or a fluorine atom.
  • the content of the compound represented by the general formula (IV-2) is low temperature solubility, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, image sticking, dielectric constant anisotropic It is necessary to adjust appropriately according to the required performance such as property.
  • the content of the compound represented by the general formula (IV-2) is preferably 0.5 to 40% by mass with respect to the total mass of the liquid crystal composition of the present invention. More preferable contents are, for example, 1 to 40% by mass, 2 to 40% by mass, 3 to 40% by mass, 5 to 40% by mass, 7 to 40% by mass, 9 to 40% by mass, and 12 to 40% by mass. 15-40% by mass, 20-40% by mass, or 1-40% by mass, 1-30% by mass, 1-25% by mass, 1-20% by mass, 1-15% by mass, 1-10% by mass 1 to 5% by mass, and 1 to 4% by mass.
  • the compound represented by the general formula (IV-2) is preferably at least one compound selected from the group of compounds represented by the formulas (19.1) to (19.8), Among these, it is preferable that it is a compound represented by Formula (19.2).
  • the wide molecular weight distribution of the compound selected as a component of the liquid crystal composition is also effective for the solubility, for example, from the viewpoint of improving the solubility of the liquid crystal composition, for example, the formula (19.1) or (19.2) 1 type from the compound represented by formula, 1 type from the compound represented by formula (19.3) or (19.4), 1 from the compound represented by formula (19.5) or formula (19.6) It is preferable to select one kind of compound from the kind and the compound represented by the formula (19.7) or (19.8), and to combine them appropriately.
  • the content of the compound represented by the formula (19.4) is determined in consideration of solubility at low temperatures, transition temperature, electrical reliability, and the like. It is preferably 3% by mass or more and 25% by mass or less, preferably 1% by mass or more and 20% by mass or less, more preferably 3% by mass or more and 15% by mass or less, and preferably 4% by mass or more and 12% by mass with respect to the total mass of the product. The following is preferred.
  • the compound represented by the general formula (L) is preferably at least one compound selected from the group of compounds represented by the general formula (V).
  • R 51 and R 52 each independently 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.
  • a 51 and A 52 each independently represents a 1,4-cyclohexylene group or a 1,4-phenylene group,
  • Q 5 represents a single bond or —COO—, and
  • X 51 and X 52 represent Each independently represents a fluorine atom or a hydrogen atom.
  • the kind of compound to be used is, for example, one kind in one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four types.
  • the content of the compound represented by the general formula (V) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 40% by mass in one embodiment. In still another embodiment of the present invention, the content is 4% to 40% by mass. In still another embodiment of the present invention, the content is 7% to 40% by mass. In still another embodiment of the present invention, the content is 10% to 40% by mass. In still another embodiment of the present invention, the content is 12% to 40% by mass. In still another embodiment of the present invention, the content is 15% to 40% by mass. In still another embodiment of the present invention, the content is 17% to 40% by mass. In still another embodiment of the present invention, the content is 18% to 40% by mass. In still another embodiment of the present invention, the content is 20% to 40% by mass. In still another embodiment of the present invention, the content is 22% to 40% by mass.
  • the content of the compound is 2 to 30% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content of the compound is 2% to 25% by mass.
  • the content of the compound is 2% to 20% by mass.
  • the content of the compound is 2% to 15% by mass.
  • the content of the compound is 2% to 10% by mass.
  • the content of the compound is 2% to 5% by mass.
  • the content of the compound is 2% to 4% by mass.
  • the compound represented by the general formula (V) is preferably a compound represented by the general formula (V-1).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy having 1 to 4 carbon atoms.
  • X 51 and X 52 each independently represent a fluorine atom or a hydrogen atom.
  • the compound represented by the general formula (V-1) is preferably a compound represented by the general formula (V-1-1).
  • R 51 and R 52 are each independently an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 carbon atoms. Represents an alkoxy group.
  • the compound represented by the general formula (V-1-1) is preferably contained in an amount of 1% by mass to 15% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is more preferably 3% by mass or more and 10% by mass or less, still more preferably 4% by mass or more and 8% by mass or less.
  • the compound represented by the general formula (V-1-1) is at least one compound selected from the group of compounds represented by the formulas (20.1) to (20.4). Preferably, it is a compound represented by Formula (20.2).
  • the compound represented by the general formula (V-1) is preferably a compound represented by the general formula (V-1-2).
  • R 51 and R 52 are each independently an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 carbon atoms. Represents an alkoxy group.
  • the compound represented by the general formula (V-1-2) is preferably contained in an amount of 1% by mass to 15% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is preferably 3% by mass or more and 10% by mass or less, and more preferably 4% by mass or more and 8% by mass or less.
  • the compound represented by the general formula (V-1-2) is preferably at least one compound selected from the group of compounds represented by the formulas (21.1) to (21.3).
  • a compound represented by formula (21.1) is preferable.
  • the compound represented by the general formula (V-1) is preferably a compound represented by the general formula (V-1-3).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 carbon atoms. Represents an alkoxy group.
  • the compound represented by the general formula (V-1-3) is preferably contained in an amount of 1% by mass to 15% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is preferably 3% by mass or more and 10% by mass or less, and more preferably 4% by mass or more and 8% by mass or less.
  • the compound represented by the general formula (V-1-3) is preferably at least one compound selected from the group of compounds represented by the formulas (22.1) to (22.3). More preferably, it is a compound represented by the formula (22.1).
  • the compound represented by the general formula (V) is preferably a compound represented by the general formula (V-2).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy having 1 to 4 carbon atoms.
  • X 51 and X 52 each independently represent a fluorine atom or a hydrogen atom.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, it is two or more types.
  • the content of the compound represented by the general formula (V-2) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 40% by mass in one embodiment.
  • the content of the compound is 4% to 40% by mass.
  • the content of the compound is 7% to 40% by mass.
  • the content of the compound is 10% to 40% by mass.
  • the content of the compound is 12% to 40% by mass.
  • the content of the compound is 15% to 40% by mass.
  • the content of the compound is 17% to 40% by mass.
  • the content of the compound is 18% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 20% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 22% to 40% by mass.
  • the content of the compound represented by the general formula (V-2) is 2 to 30% by mass with respect to the total mass of the liquid crystal composition of the present invention. .
  • the content of the compound is 2% to 25% by mass.
  • the content of the compound is 2% to 20% by mass.
  • the content of the compound is 2% to 15% by mass.
  • the content of the compound is 2% to 10% by mass.
  • the content of the compound is 2% to 5% by mass.
  • the content of the compound is 2% to 4% by mass.
  • the compound represented by the general formula (V-2) is preferably a compound represented by the general formula (V-2-1).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 carbon atoms. Represents an alkoxy group.
  • the compound represented by the general formula (V-2-1) is preferably contained in an amount of 2% by mass to 16% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is preferably 4% by mass or more and 10% by mass or less.
  • the compound represented by the general formula (V-2-1) is at least one compound selected from the group of compounds represented by the formulas (23.1) to (23.4). Preferably, it is a compound represented by Formula (23.1) and / or Formula (23.2).
  • the compound represented by the general formula (V-2) is preferably a compound represented by the general formula (V-2-2).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 carbon atoms. Represents an alkoxy group.
  • the compound represented by the general formula (V-2-2) is at least one compound selected from the group of compounds represented by the formulas (24.1) to (24.4).
  • a compound represented by formula (24.1) and / or formula (24.2) is preferable.
  • the compound represented by the general formula (V) is preferably a compound represented by the general formula (V-3).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy having 1 to 4 carbon atoms. Represents a group.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of this invention, they are three or more types.
  • the compound represented by the general formula (V-3) is preferably contained in an amount of 2% by mass to 16% by mass with respect to the total mass of the liquid crystal composition of the present invention. It is preferable to contain 7% by mass or more and 13% by mass or less, and preferably 8% by mass or more and 11% by mass or less.
  • the compound represented by the general formula (V-3) is preferably at least one compound selected from the group of compounds represented by the formulas (25.1) to (25.3).
  • the compound represented by the general formula (V) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (V-4).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy having 1 to 4 carbon atoms. Represents a group.
  • the compound represented by the general formula (V-4) is preferably contained in an amount of 1% by mass to 15% by mass with respect to the total mass of the liquid crystal composition of the present invention, and preferably 2% by mass or more and 15% by mass or less. It is preferable to contain 3 mass% or more and 10 mass% or less, and it is preferable to contain 4 mass% or more and 8 mass% or less.
  • the compound represented by the general formula (V-4) is preferably at least one compound selected from the group of compounds represented by the formulas (25.11) to (25.13).
  • the compound represented by (25.13) is more preferable.
  • the compound represented by the general formula (L) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (V′-5).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkyl group having 1 to 4 carbon atoms. Represents an alkoxy group.
  • the compound represented by the general formula (V′-5) is preferably contained in an amount of 1% by mass to 15% by mass with respect to the total mass of the liquid crystal composition of the present invention. It is preferable to contain, and it is preferable to contain 2 to 13 mass%.
  • the compound represented by the general formula (V′-5) is preferably at least one compound selected from the compound group represented by the formulas (25.21) to (25.23), A compound represented by formula (25.21) and / or formula (25.23) is more preferable.
  • the liquid crystal composition of the present invention may further contain at least one compound represented by the general formula (VI).
  • R 61 and R 62 are each independently a linear alkyl group having 1 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms, or 2 to 10 carbon atoms. Represents a straight-chain alkenyl group.
  • the types of compounds that can be combined there are no particular restrictions on the types of compounds that can be combined, but 1 to 3 of these compounds can be selected depending on the required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. It is preferable to blend the types, more preferably 1 to 4 types, more preferably 1 to 5 types or more.
  • the content of the compound represented by the general formula (VI) is preferably 0 to 35% by mass, and preferably 0 to 25% by mass with respect to the total mass of the liquid crystal composition of the present invention. 0 to 15% by mass is preferable.
  • the liquid crystal composition of the present invention can further contain at least one compound represented by the general formula (VII).
  • R 71 and R 72 are each independently a linear alkyl group having 1 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms, or 4 to 10 carbon atoms. Represents a straight-chain alkenyl group.
  • the content of the compound represented by the general formula (VII) is preferably 0 to 35% by mass, more preferably 0 to 25% by mass, and more preferably 0 to 15% by mass with respect to the total mass of the liquid crystal composition of the present invention. % Is preferred.
  • the liquid crystal composition of the present invention preferably further contains at least one compound represented by the following general formula (M).
  • R M1 represents an alkyl group having 1 to 8 carbon atoms, and one or two or more non-adjacent —CH 2 — in the alkyl group are each independently — Optionally substituted by CH ⁇ CH—, —C ⁇ C—, —O—, —CO—, —COO— or —OCO—, PM represents 0, 1, 2, 3 or 4;
  • C M1 and C M2 are each independently (D) 1,4-cyclohexylene group (this is present in the group one -CH 2 - or nonadjacent two or more -CH 2 - may be replaced by -O- or -S- And (e) a 1,4-phenylene group (one —CH ⁇ present in the group or two or more non-adjacent —CH ⁇ may be replaced by —N ⁇ ).
  • 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-
  • K M1 and K M3 each independently represent a hydrogen atom, a chlorine atom or a fluorine atom
  • X M2 represents a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a fluorome
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four types. Furthermore, in another embodiment of the present invention, there are five types. Furthermore, in another embodiment of the present invention, there are six types. Furthermore, in another embodiment of this invention, they are seven or more types.
  • the content of the compound represented by the general formula (M) is low temperature solubility, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, It is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound represented by the general formula (M) is 1 to 95% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content of the compound is 10% to 95% by mass.
  • the content of the compound is 20% to 95% by mass.
  • the content of the compound is 30% to 95% by mass.
  • the content of the compound is 40% to 95% by mass.
  • the content of the compound is 45% to 95% by mass.
  • the content of the compound is 50% to 95% by mass.
  • the content of the compound is 55% to 95% by mass.
  • the content of the compound is 60% to 95% by mass.
  • the content of the compound is 65% to 95% by mass.
  • the content of the compound is 70% to 95% by mass.
  • the content of the compound is 75% to 95% by mass.
  • the content of the compound is 80% to 95% by mass.
  • the content of the compound represented by the general formula (M) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 85 mass% in one embodiment of the present invention.
  • the content of the compound is 1% to 75% by mass.
  • the content of the compound is 1% to 65% by mass.
  • the content of the compound is 1% to 55% by mass.
  • the content of the compound is 1% to 45% by mass.
  • the content of the compound is 1% to 35% by mass.
  • the content of the compound is 1% to 25% by mass.
  • the liquid crystal composition of the present invention maintains a low viscosity and a liquid crystal composition having a high response speed is required, it is preferable to lower the lower limit value and lower the upper limit value. Furthermore, when the liquid crystal composition of the present invention maintains a high Tni and a liquid crystal composition with good temperature stability is required, it is preferable to lower the lower limit and lower the upper limit. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable to increase the upper limit value while increasing the lower limit value.
  • R M1 represents a linear alkyl group having 1 to 5 carbon atoms or a linear alkoxy group having 1 to 4 carbon atoms when the ring structure to which R M1 is bonded is a phenyl group (aromatic). And an alkenyl group having 4 to 5 carbon atoms, and when the ring structure to which it is bonded is a saturated ring structure such as cyclohexane, pyran and dioxane, a linear alkyl group having 1 to 5 carbon atoms, A straight-chain alkoxy group having 1 to 4 carbon atoms and a straight-chain alkenyl group having 2 to 5 carbon atoms are preferred.
  • the compound represented by the general formula (M) preferably has no chlorine atom in the molecule when the chemical stability of the liquid crystal composition is required. Further, the content of the compound having a chlorine atom in the liquid crystal composition is preferably 0 to 5% by mass, and preferably 0 to 3% by mass with respect to the total mass of the liquid crystal composition of the present invention. 0 to 1% by mass, preferably 0 to 0.5% by mass, and substantially not contained. “Substantially not contained” means that only a compound containing a chlorine atom unintentionally enters the liquid crystal composition, such as a compound produced as an impurity during compound production.
  • the compound represented by the general formula (M) is preferably at least one compound selected from the group of compounds represented by the general formula (VIII), for example.
  • R 8 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 81 to X 85 are: Each independently represents a hydrogen atom or a fluorine atom, and Y 8 represents a fluorine atom or —OCF 3 .
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of this invention, they are three or more types.
  • the content of the compound represented by the general formula (VIII) is low-temperature solubility, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, It is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound represented by the general formula (VIII) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 40% by mass in one embodiment of the present invention.
  • the content of the compound is 4% to 40% by mass.
  • the content of the compound is 5% to 40% by mass.
  • the content of the compound is 6% to 40% by mass.
  • the content of the compound is 7% to 40% by mass.
  • the content of the compound is 8% to 40% by mass.
  • the content of the compound is 9% to 40% by mass.
  • the content of the compound is 10% to 40% by mass.
  • the content of the compound is 11% to 40% by mass.
  • the content of the compound is 12% to 40% by mass.
  • the content of the compound is 14% to 40% by mass.
  • the content of the compound is 15% to 40% by mass.
  • the content of the compound is 21% to 40% by mass.
  • the content of the compound is 23% to 40% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 30% by mass in one embodiment of the present invention.
  • the content of the compound is 2% to 25% by mass.
  • the content of the compound is 2% to 21% by mass.
  • the content of the compound is 2% to 16% by mass.
  • the content of the compound is 2% to 12% by mass.
  • the content of the compound is 2% to 8% by mass.
  • the content of the compound is 2% to 5% by mass.
  • the liquid crystal composition of the present invention maintains a low viscosity and a liquid crystal composition having a high response speed is required, it is preferable to lower the lower limit value and lower the upper limit value. Furthermore, when the liquid crystal composition of the present invention maintains a high Tni and a liquid crystal composition with good temperature stability is required, it is preferable to lower the lower limit and lower the upper limit. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable to increase the upper limit value while increasing the lower limit value.
  • the compound represented by the general formula (VIII) is preferably a compound represented by the general formula (VIII-1).
  • R 8 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.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, it is two or more types.
  • the compound represented by the general formula (VIII-1) is specifically at least one compound selected from the group of compounds represented by formula (26.1) to formula (26.4).
  • the compound represented by the formula (26.1) and / or the formula (26.2) is preferable, and the compound represented by the formula (26.2) is more preferable.
  • the content of the compound represented by the formula (26.1) is the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperatures, transition temperature, electrical reliability, birefringence, and the like.
  • 1 mass% or more and 40 mass% or less is preferable, 1 mass% or more and 30 mass% or less are more preferable, 1 mass% or more and 20 mass% or less are more preferable, and 2 mass% or more and 15 mass% or less are more preferable.
  • 2% by mass to 7% by mass for example, 2% by mass to 6% by mass, 2% by mass to 5% by mass, 2% by mass to 4% by mass, 2% by mass to 3% by mass. % Or less, 3% to 7% by weight, 4% to 7% by weight, and 6% to 7% by weight.
  • the content of the compound represented by the formula (26.2) is the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperatures, transition temperature, electrical reliability, birefringence, and the like. Is preferably 2% by mass or more and 40% by mass or less, more preferably 2% by mass or more and 30% by mass or less, further preferably 2% by mass or more and 20% by mass or less, and 2% by mass or more and 15% by mass or less. Is particularly preferred. Among particularly preferable ranges, for example, 2% by mass to 12% by mass, 2% by mass to 10% by mass, 2% by mass to 8% by mass, 2% by mass to 6% by mass, 6% by mass to 15% by mass. % Or less, 6 mass% or more and 12 mass% or less, 8 mass% or more and 12 mass% or less, 10 mass% or more and 12 mass% or less.
  • the total content of the compound represented by the formula (26.1) and the compound represented by the formula (26.2) is 1 to 30% by mass with respect to the total mass of the liquid crystal composition of the invention. 1 to 20% by mass is more preferable, 2 to 20% by mass is further preferable, and 2 to 14% by mass is particularly preferable.
  • the compound represented by the general formula (VIII) is preferably a compound represented by the general formula (VIII-2).
  • R 8 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.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Or in another embodiment of this invention, they are three or more types.
  • the content of the compound represented by the general formula (VIII-2) is the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, birefringence, and the like. Is preferably 2.5% by mass or more and 25% by mass or less, more preferably 8% by mass or more and 25% by mass or less, and preferably 10% by mass or 20% by mass or less, and 12% by mass. It is preferable that it is 15 mass% or less.
  • the compound represented by the general formula (VIII-2) is preferably at least one compound selected from the group of compounds represented by the formulas (27.1) to (27.4).
  • the compound represented by (27.2) is preferable.
  • the compound represented by the general formula (VIII) is preferably a compound represented by the general formula (VIII-3).
  • R 8 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.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, it is two or more types.
  • the compound represented by the general formula (VIII-3) is specifically at least one compound selected from the group of compounds represented by formula (26.11) to formula (26.14).
  • the compound represented by the formula (26.11) and / or the formula (26.12) is preferable, and the compound represented by the formula (26.12) is more preferable.
  • the compound represented by the general formula (VIII) is preferably a compound represented by the general formula (VIII-4).
  • R 8 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.
  • the content of the compound represented by the general formula (VIII-4) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (VIII-4) is 1 to 25% by mass in one embodiment of the present invention relative to the total mass of the liquid crystal composition of the present invention. 2 to 25% by weight in a form, 3 to 20% by weight in yet another embodiment, 3 to 13% by weight in still another embodiment, and 3 to 13% by weight in yet another embodiment. Is 3 to 10% by mass, and in still another embodiment, the content of the compound is 1 to 5% by mass.
  • the compound represented by the general formula (VIII-4) used in the liquid crystal composition of the present invention is specifically from the compound group represented by the formula (26.21) to the formula (26.24). It is preferable that it is at least one compound selected, and among these, it is more preferable to contain a compound represented by the formula (26.24).
  • the compound represented by the general formula (M) is preferably at least one compound selected from the group of compounds represented by the general formula (IX), for example. However, the compound represented by the general formula (i) is excluded.
  • R 9 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 91 and X 92 are: Each independently represents a hydrogen atom or a fluorine atom, Y 9 represents a fluorine atom, a chlorine atom or —OCF 3 , and U 9 represents a single bond, —COO— or —CF 2 O—.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four types. Furthermore, in another embodiment of the present invention, there are five types. Furthermore, in another embodiment of this invention, they are six or more types.
  • the content of the compound represented by the general formula (IX) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, It is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound represented by the general formula (IX) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 70% by mass in one embodiment of the present invention. Further, for example, in another embodiment of the present invention, the content of the compound is 5% to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 8% to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 10% to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 12% to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 15% to 70% by mass.
  • the content of the compound is 17% to 70% by mass.
  • the content of the compound is 20% to 70% by mass.
  • the content of the compound is 24% to 70% by mass.
  • the content of the compound is 28% to 70% by mass.
  • the content of the compound is 30% to 70% by mass.
  • the content of the compound is 34% to 70% by mass.
  • the content of the compound is 39% to 70% by mass.
  • the content of the compound is 40% to 70% by mass.
  • the content of the compound is 42% to 70% by mass.
  • the content of the compound is 45% to 70% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 60% by mass in one embodiment of the present invention.
  • the content of the compound is 3% to 55% by mass.
  • the content of the compound is 3% to 50% by mass.
  • the content of the compound is 3% to 45% by mass.
  • the content of the compound is 3% to 40% by mass.
  • the content of the compound is 3% to 35% by mass.
  • the content of the compound is 3% to 30% by mass.
  • the content is 25% by mass.
  • the content of the compound is 3% to 20% by mass. In still another embodiment of the present invention, the content of the compound is 3% to 15% by mass. In still another embodiment of the present invention, the content of the compound is 3% to 10% by mass.
  • the liquid crystal composition of the present invention maintains a low viscosity and a liquid crystal composition having a high response speed is required, it is preferable to lower the lower limit value and lower the upper limit value. Furthermore, when the liquid crystal composition of the present invention requires a high Tni and a liquid crystal composition that does not easily cause burn-in, it is preferable to lower the lower limit and lower the upper limit. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable to increase the upper limit value while increasing the lower limit value.
  • the compound represented by the general formula (IX) is preferably a compound represented by the general formula (IX-1). However, the compound represented by the general formula (i) is excluded.
  • R 9 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 92 represents a hydrogen atom.
  • a fluorine atom is represented, and Y 9 represents a fluorine atom or —OCF 3 .
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four or more types.
  • the compound represented by the general formula (IX-1) is preferably a compound represented by the general formula (IX-1-1).
  • R 9 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. However, the compound represented by the formula (i) is excluded.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of this invention, they are three or more types.
  • the content of the compound represented by the general formula (IX-1-1) is appropriately adjusted according to the embodiment in consideration of solubility at a low temperature, transition temperature, electrical reliability, birefringence, and the like.
  • the content of the compound represented by the general formula (IX-1-1) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 40% by mass in one embodiment of the present invention. .
  • the content of the compound is 2% to 40% by mass.
  • the content of the compound is 4% to 40% by mass.
  • the content of the compound is 10% to 40% by mass.
  • the content of the compound is 14% to 40% by mass.
  • the content of the compound is 16% to 40% by mass.
  • the content of the compound is 21% to 40% by mass.
  • the content of the compound represented by the general formula (IX-1-1) with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 35% by mass in one embodiment of the present invention. It is. In still another embodiment of the present invention, the content of the compound is 1% to 30% by mass. In still another embodiment of the present invention, the content of the compound is 1% to 25% by mass. In still another embodiment of the present invention, the content of the compound is 1% to 10% by mass. In still another embodiment of the present invention, the content of the compound is 1% to 7% by mass. In still another embodiment of the present invention, the content of the compound is 1% to 5% by mass.
  • the compound represented by the general formula (IX-1-1) is represented by the formula (28.1), the formula (28.2), the formula (28.4), and the formula (28.5). It is preferable that it is at least 1 sort (s) of compounds chosen from the compound group which is said, and it is preferable that it is a compound represented by Formula (28.5).
  • the content of the compound represented by the formula (28.5) is determined in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferable that it is 2 mass% or more and 25 mass% or less with respect to the total mass of a thing, 2 mass% or more and 20 mass% or less are preferable, 2 mass% or more and 15 mass% or less are preferable, and 2 mass% or more and 10 mass% or less. The following is preferred.
  • the compound represented by the general formula (IX-1) is preferably a compound represented by the general formula (IX-1-2).
  • R 9 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.
  • the content of the compound represented by the general formula (IX-1-2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 1% by mass to 30% by mass, preferably 5% by mass to 30% by mass, more preferably 8% by mass to 30% by mass, and preferably 10% by mass to 25% by mass, 14 mass% or more and 22 mass% or less are preferable, and 16 mass% or more and 20 mass% or less are preferable.
  • the compound represented by the general formula (IX-1-2) is at least one compound selected from the group of compounds represented by the formulas (29.1) to (29.4).
  • a compound represented by formula (29.2) and / or formula (29.4) is preferable.
  • the compound represented by the general formula (IX) is preferably a compound represented by the general formula (IX-2).
  • R 9 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 91 and X 92 Each independently represents a hydrogen atom or a fluorine atom
  • Y 9 represents a fluorine atom, a chlorine atom or —OCF 3 .
  • one embodiment of the present invention has one type, another embodiment has two types, yet another embodiment has three types, yet another embodiment has four types, and yet another embodiment has five types, In still another embodiment, six or more types are combined.
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-1).
  • R 9 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.
  • the content of the compound represented by the general formula (IX-2-1) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (IX-2-1) is 1 to 40% by mass with respect to the total mass of the liquid crystal composition of the present invention. is there.
  • the content of the compound is 2% to 40% by mass.
  • the content of the compound is 4% to 40% by mass.
  • the content of the compound is 10% to 40% by mass.
  • the content of the compound is 14% to 40% by mass.
  • the content of the compound is 16% to 40% by mass.
  • the content of the compound is 21% to 40% by mass.
  • the content of the compound represented by the general formula (IX-2-1) with respect to the total mass of the liquid crystal composition of the present invention is 1 to 30% by mass in one embodiment of the present invention.
  • the compound represented by the general formula (IX-2-1) is preferably at least one compound selected from the group of compounds represented by the formulas (30.1) to (30.4). And a compound represented by formula (30.1) and / or formula (30.2).
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-2).
  • R 9 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.
  • the content of the compound represented by the general formula (IX-2-2) is appropriately determined for each embodiment in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Adjusted.
  • the content of the compound represented by the general formula (IX-2-2) is 1 to 40% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. 2 to 40% by weight in this embodiment, 4 to 40% by weight in yet another embodiment, 10 to 40% by weight in yet another embodiment, 14 to 40% by weight in yet another embodiment, and further In another embodiment, it is 16-40% by mass, and in still another embodiment, 21-40% by mass.
  • the content of the compound represented by the general formula (IX-2-2) is 1 to 35% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. 1 to 30% by weight in another embodiment, 1 to 25% by weight in yet another embodiment, 1 to 22% by weight in yet another embodiment, and 1 to 15% by weight in yet another embodiment. In still another embodiment, it is 4 to 14% by mass, in still another embodiment 1 to 10% by mass, and in still another embodiment 4 to 10% by mass.
  • the compound represented by the general formula (IX-2-2) is preferably at least one compound selected from the group of compounds represented by the formulas (31.1) to (31.4). It is preferably at least one compound selected from the group of compounds represented by formula (31.2) to formula (31.4), more preferably a compound represented by formula (31.2). preferable.
  • the content of the compound represented by the formula (31.2) is 1% by mass or more and 35% by mass or less with respect to the total mass of the liquid crystal composition of the present invention.
  • it is 2% by mass or 25% by mass or less, preferably 3% by mass or more and 20% by mass or less, preferably 3% by mass or more and 15% by mass or less, and preferably 3% by mass or more and 10% by mass or less.
  • the following is preferable.
  • 3% by mass to 8% by mass, 3% by mass to 6% by mass, 3% by mass to 4% by mass, 4% by mass to 10% by mass, 6% by mass to 10% by mass, 8 mass% or more and 10 mass% or less are preferable.
  • the content of the compound represented by the formula (31.4) is preferably 1% by mass or more and 35% by mass or less with respect to the total mass of the liquid crystal composition of the present invention.
  • 1 mass% is preferably 25 mass% or less, preferably 1 mass% or more and 15 mass% or less, preferably 2 mass% or more and 10 mass% or less, preferably 3 mass% or more and 8 mass% or less. It is preferable that it is 3 mass% or more and 6 mass% or less, and it is preferable that it is 3 mass% or more and 5 mass% or less.
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-3).
  • R 9 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.
  • the content of the compound represented by the general formula (IX-2-3) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 1% by mass to 30% by mass, more preferably 3% by mass to 20% by mass, further preferably 6% by mass to 15% by mass, and more preferably 8% by mass to 10% by mass. Further preferred.
  • the compound represented by the general formula (IX-2-3) is preferably at least one compound selected from the group of compounds represented by the formulas (32.1) to (32.4). And a compound represented by formula (32.2) and / or formula (32.4).
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-4).
  • R 9 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.
  • the content of the compound represented by the general formula (IX-2-4) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 1% by mass to 30% by mass, more preferably 3% by mass to 20% by mass, further preferably 6% by mass to 15% by mass, and more preferably 8% by mass to 10% by mass. Particularly preferred.
  • the compound represented by the general formula (IX-2-4) is preferably at least one compound selected from the group of compounds represented by the formulas (33.1) to (33.6). And a compound represented by formula (33.1) and / or formula (33.3).
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-5).
  • R 9 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.
  • one embodiment of the present invention has one type, another embodiment has two types, yet another embodiment has three types, and yet another embodiment has four or more types.
  • the content of the compound represented by the general formula (IX-2-5) is appropriately determined for each embodiment in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Adjusted.
  • the content of the compound represented by the general formula (IX-2-5) is 4 to 45% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. 8 to 45 wt% in yet another embodiment, 12 to 45 wt% in yet another embodiment, 21 to 45 wt% in yet another embodiment, 30 to 45 wt% in yet another embodiment, and even more In another embodiment, it is 31 to 45% by mass, and in still another embodiment, 34 to 45% by mass.
  • the content of the compound represented by the general formula (IX-2-5) is 4 to 40% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention.
  • the content of the compound is 4 to 35% by mass.
  • the content of the compound is 4 to 32% by mass.
  • the content of the compound is in still another embodiment, the content of the compound is 4 to 13% by mass, and in still another embodiment, the content of the compound is 4 to 9% by mass, and still another embodiment. Then, the content of the compound is 4 to 8% by mass, and in still another embodiment, the content of the compound is 4 to 5% by mass.
  • the liquid crystal composition of the present invention maintains a low viscosity and a liquid crystal composition having a high response speed is required, it is preferable to lower the lower limit value and lower the upper limit value. Furthermore, when the liquid crystal composition of the present invention requires a high Tni and a liquid crystal composition that does not easily cause burn-in, it is preferable to lower the lower limit and lower the upper limit. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable to increase the upper limit value while increasing the lower limit value.
  • the compound represented by the general formula (IX-2-5) is preferably at least one compound selected from the group of compounds represented by the formulas (34.1) to (34.7).
  • the compound represented by formula (34.1), formula (34.2), formula (34.3) and / or formula (34.5) is more preferable.
  • the compound represented by the general formula (IX) is preferably a compound represented by the general formula (IX-3).
  • R 9 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 91 and X 92 Each independently represents a hydrogen atom or a fluorine atom
  • Y 9 represents a fluorine atom, a chlorine atom or —OCF 3 .
  • the compound represented by the general formula (IX-3) is preferably a compound represented by the general formula (IX-3-1).
  • R 9 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.
  • the content of the compound represented by the general formula (IX-3-1) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 3% by mass or more and 30% by mass or less, preferably 7% by mass or more and 30% by mass or less, preferably 13% by mass or more and 20% by mass or less, and more preferably 15% by mass or more and 18% by mass or less.
  • the compound represented by the general formula (IX-3-1) is preferably at least one compound selected from the group of compounds represented by the formulas (35.1) to (35.4). And a compound represented by formula (35.1) and / or formula (35.2).
  • the compound represented by the general formula (M) is preferably a compound represented by the general formula (X).
  • X 101 to X 104 each independently represents a fluorine atom or a hydrogen atom
  • Y 10 represents a fluorine atom, a chlorine atom, or —OCF 3
  • Q 10 represents a single bond or —CF 2 O—
  • R 10 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
  • a 101 and A 102 are Each independently represents a 1,4-cyclohexylene group, a 1,4-phenylene group, or any one group represented by the following formula, wherein the hydrogen atom on the 1,4-phenylene group is a fluorine atom; May be substituted.
  • the content of the compound represented by the general formula (X) is appropriately adjusted for each embodiment in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (X) is 2 to 45% by mass in one embodiment of the present invention and 2 to 45% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is from 23 to 45 mass%, and in still another embodiment, the content is from 25 to 45 mass%. Further, for example, the content of the compound represented by the general formula (X) is 2 to 35% by mass in one embodiment of the present invention relative to the total mass of the liquid crystal composition of the present invention.
  • the liquid crystal composition of the present invention maintains a low viscosity and a liquid crystal composition having a high response speed is required, it is preferable to lower the lower limit value and lower the upper limit value. Furthermore, when a liquid crystal composition that does not easily cause burn-in is required, it is preferable to lower the lower limit value and lower the upper limit value. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable to increase the upper limit value while increasing the lower limit value.
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-1).
  • X 101 to X 103 each independently represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms
  • 2 to 5 carbon atoms An alkenyl group or an alkoxy group having 1 to 4 carbon atoms is represented.
  • the compound that can be combined is not particularly limited, but is appropriately combined for each embodiment in consideration of solubility at a low temperature, transition temperature, electrical reliability, birefringence, and the like.
  • the content of the compound represented by the general formula (X-1) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (X-1) is 2 to 40% by mass in one embodiment of the present invention relative to the total mass of the liquid crystal composition of the present invention. 3 to 40% by weight in a form, 5 to 40% by weight in yet another embodiment, 6 to 40% by weight in yet another embodiment, 7 to 40% by weight in yet another embodiment, and yet another 8 to 40% by weight in an embodiment, 9 to 40% by weight in yet another embodiment, 13 to 40% by weight in yet another embodiment, 18 to 40% by weight in yet another embodiment, and still more In another embodiment, it is 23-40% by weight.
  • the content of the compound represented by the general formula (X-1) is 2 to 30% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. 2 to 25% by weight in this embodiment, 2 to 20% by weight in still another embodiment, 2 to 15% by weight in still another embodiment, 2 to 10% by weight in still another embodiment, and In yet another embodiment, it is 2-6% by weight, and in yet another embodiment 2-4% by weight.
  • the compound represented by the general formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-1-1).
  • R 10 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.
  • the content of the compound represented by the general formula (X-1-1) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (X-1-1) is 3 to 30% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. 4-30% by weight in this embodiment, 6-30% by weight in yet another embodiment, 9-30% by weight in yet another embodiment, 12-30% by weight in yet another embodiment, and further In another embodiment it is 15-30% by weight, in yet another embodiment 18-30% by weight, and in yet another embodiment 21-30% by weight.
  • the content of the compound represented by the general formula (X-1-1) is 3 to 20% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention.
  • the compounds represented by the general formula (X-1-1) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (36.1) to (36.4). It is preferably at least one compound selected from the group, and among them, it is preferable to contain a compound represented by formula (36.1) and / or formula (36.2).
  • the compound represented by the general formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-1-2).
  • R 10 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.
  • the content of the compound represented by the general formula (X-1-2) is appropriately adjusted in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like.
  • the content of the compound represented by the general formula (X-1-2) is 1 to 20% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. In this embodiment, it is 2 to 20% by mass, and in yet another embodiment 6 to 20% by mass.
  • the content of the compound represented by the general formula (X-1-2) is 1 to 16% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. In another embodiment, 1 to 12% by mass, and in yet another embodiment 1 to 10% by mass.
  • the compounds represented by the general formula (X-1-2) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (37.1) to (37.4). It is preferably at least one compound selected from the group, and among them, it is preferable to contain a compound represented by the formula (37.2).
  • the compound represented by the general formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-1-3).
  • R 10 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.
  • the content of the compound represented by the general formula (X-1-3) is appropriately adjusted in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like.
  • the content of the compound represented by the general formula (X-1-3) is 1 to 20% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. In this embodiment, it is 2 to 20% by mass, and in yet another embodiment 6 to 20% by mass.
  • the content of the compound represented by the general formula (X-1-3) is 1 to 16% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. In another embodiment, 1 to 12% by mass, and in yet another embodiment 1 to 10% by mass.
  • the compounds represented by the general formula (X-1-3) used in the liquid crystal composition of the present invention are specifically the compounds represented by the formulas (38.1) to (38.4). It is preferably at least one compound selected from the group, and among them, it is preferable to contain a compound represented by the formula (38.2).
  • the content of the compound represented by the formula (38.2) is 1% by mass to 35% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • it is 2% by mass or 25% by mass or less, preferably 3% by mass or more and 20% by mass or less, preferably 3% by mass or more and 15% by mass or less, and preferably 3% by mass or more and 10% by mass or less.
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-2).
  • X 102 and X 103 each independently represent a fluorine atom or a hydrogen atom
  • Y 10 represents a fluorine atom, a chlorine atom or —OCF 3
  • R 10 represents a carbon atom.
  • 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 is represented.
  • the compound represented by the general formula (X-2) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-2-1).
  • R 10 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.
  • the content of the compound represented by the general formula (X-2-1) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 3% by mass or more and 20% by mass or less, preferably 3% by mass or more and 16% by mass or less, preferably 3% by mass or more and 12% by mass or less, and more preferably 3% by mass or more and 10% by mass or less.
  • the compound represented by the general formula (X-2-1) used in the liquid crystal composition of the present invention is specifically represented by the formula (39.1) to the formula (39.4). It is preferably at least one compound selected from the group of compounds, and among them, it is preferable to contain a compound represented by the formula (39.2).
  • the content of the compound represented by the formula (39.2) is 1% by mass to 35% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • it is 2% by mass or 25% by mass or less, preferably 3% by mass or more and 20% by mass or less, preferably 3% by mass or more and 15% by mass or less, and preferably 3% by mass or more and 10% by mass or less.
  • It is preferably 4% by mass or more and 8% by mass or less, and more preferably 4% by mass or more and 6% by mass or less.
  • the compound represented by the general formula (X-2) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-2-2).
  • R 10 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.
  • the content of the compound represented by the general formula (X-2-2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferable that they are 3 mass% or more and 20 mass% or less, 6 mass% or more and 16 mass% or less are preferable, 9 mass% or more and 12 mass% or less are preferable, and 9 mass% or more and 10 mass% or less are preferable.
  • the compounds represented by the general formula (X-2-2) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (40.1) to (40.4). It is preferably at least one compound selected from the group, and among them, it is preferable to contain a compound represented by the formula (40.2).
  • the compound represented by the general formula (X) is preferably a compound represented by the general formula (X-3).
  • X 102 and X 103 each independently represent a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, or 2 to 5 carbon atoms. Or an alkoxy group having 1 to 4 carbon atoms.
  • the compound represented by the general formula (X-3) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-3-1).
  • R 10 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.
  • the content of the compound represented by the general formula (X-3-1) is appropriately adjusted in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like.
  • the content of the compound represented by the general formula (X-3-1) is 1 to 10% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. In this embodiment, it is 1 to 8% by mass, in yet another embodiment, 1 to 6% by mass, and in yet another embodiment, 1 to 4% by mass.
  • the compounds represented by the general formula (X-3-1) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (41.1) to (41.4). It is preferably at least one compound selected from the group, and among them, it is preferable to contain a compound represented by the formula (41.2).
  • the compound represented by the general formula (X) is preferably a compound represented by the general formula (X-4).
  • X 102 represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 carbon atoms. Represents an alkoxy group.
  • the compound represented by the general formula (X-4) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-4-1).
  • R 10 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.
  • the content of the compound represented by the general formula (X-4-1) is appropriately adjusted in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like.
  • the content of the compound represented by the general formula (X-4-1) is preferably 2% by mass or more and 20% by mass or less with respect to the total mass of the liquid crystal composition of the present invention. 17 mass% or less is preferable, 10 mass% or more and 15 mass% or less are preferable, and 10 mass% or more and 13 mass% or less are preferable.
  • the compound represented by the general formula (X-4-1) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (42.1) to the formula (42.4). It is preferably at least one compound selected from the group, and among them, it is preferable to contain a compound represented by the formula (42.3).
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-4-2).
  • R 10 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.
  • the content of the compound represented by the general formula (X-4-2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 2% by mass or more and 20% by mass or less, preferably 5% by mass or more and 17% by mass or less, more preferably 10% by mass or more and 15% by mass or less, and preferably 10% by mass or more and 13% by mass or less.
  • the compound represented by the general formula (X-4-2) used in the liquid crystal composition of the present invention is specifically represented by the formula (42.11) to the formula (42.14). It is preferable that it is at least 1 type of compound chosen from a compound group, and it is more preferable to contain especially the compound represented by Formula (42.13) and / or Formula (42.14).
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-4-3).
  • R 10 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.
  • the content of the compound represented by the general formula (X-4-3) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 2% by mass or more and 20% by mass or less, preferably 5% by mass or more and 17% by mass or less, more preferably 10% by mass or more and 15% by mass or less, and preferably 10% by mass or more and 13% by mass or less.
  • the compound represented by the general formula (X-4-3) used in the liquid crystal composition of the present invention is specifically represented by the formula (42.21) to the formula (42.24). It is preferable that it is at least one compound selected from the compound group, and among these, it is more preferable to contain a compound represented by the formula (42.22).
  • the compound represented by the general formula (X) is preferably a compound represented by the general formula (X-5).
  • X 102 represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 carbon atoms. Represents an alkoxy group.
  • the compound represented by the general formula (X-5) is preferably a compound represented by the general formula (X-5-1).
  • R 10 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.
  • the compound represented by the general formula (X-5-1) is specifically at least one compound selected from the group of compounds represented by the formulas (43.1) to (43.4). In particular, it is preferable to contain a compound represented by the formula (43.2).
  • the compound represented by the general formula (X) is preferably a compound represented by the general formula (X-6).
  • R 10 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.
  • the content of the compound represented by the general formula (X-6) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (X-6) is 2 to 30% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. 5-30% by weight in a form, 6-30% by weight in yet another embodiment, 1-20% by weight in yet another embodiment, 1-13% by weight in yet another embodiment, and yet another implementation In form, 1-10% by weight, and in yet another embodiment 2-9% by weight.
  • the compound represented by the general formula (X-6) is specifically at least one compound selected from the group of compounds represented by formula (44.1) to formula (44.4). Among them, it is preferable to contain a compound represented by formula (44.1) and / or formula (44.2).
  • the compound represented by the general formula (M) the compound represented by the general formula (X′-7) similar to the compound represented by the general formula (X) is used as the liquid crystal compound of the present invention. You may make it contain.
  • R 10 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.
  • the content of the compound represented by the general formula (X′-7) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (X′-7) is 4 to 30% by mass in one embodiment of the present invention relative to the total mass of the liquid crystal composition of the present invention. 5-30% by weight in an embodiment, 6-30% by weight in yet another embodiment, 8-30% by weight in yet another embodiment, 9-30% by weight in yet another embodiment, and yet another 11 to 30% by weight in this embodiment, 14 to 30% by weight in yet another embodiment, and 18 to 30% by weight in yet another embodiment.
  • the content of the compound represented by the general formula (X′-7) is 4 to 20% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention.
  • the content of the compound is 4 to 13% by mass.
  • the content of the compound is 4 to 10% by mass.
  • the content of the compound is 4%. -7% by mass.
  • the compound represented by the general formula (X′-7) used in the liquid crystal composition of the present invention is specifically a compound group represented by the formula (44.11) to the formula (44.14). It is preferable that it is at least 1 type of compound chosen from these, and it is more preferable to contain the compound represented by Formula (44.13) especially.
  • the compound represented by the general formula (X) is preferably at least one compound selected from the group of compounds represented by the general formula (XI).
  • X 111 to X 117 each independently represents a fluorine atom or a hydrogen atom, at least one of X 111 to X 117 represents a fluorine atom, and R 110 has 1 carbon atom.
  • the content of the compound represented by the general formula (XI) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (XI) is 2 to 30% by mass in one embodiment of the present invention and 2 to 30% by mass with respect to the total mass of the liquid crystal composition of the present invention. 4-30% by weight, in yet another embodiment 5-30% by weight, in yet another embodiment 7-30% by weight, in yet another embodiment 9-30% by weight, and still another embodiment. 10 to 30% by weight, yet another embodiment 12 to 30% by weight, yet another embodiment 13 to 30% by weight, yet another embodiment 15 to 30% by weight, yet another In the embodiment, it is 18 to 30% by mass.
  • the content of the compound represented by the general formula (XI) is 2 to 25% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. In embodiments, it is 2-20% by weight, in yet another embodiment 2-15% by weight, in yet another embodiment 2-10% by weight, and in yet another embodiment 2-5% by weight.
  • the liquid crystal composition of the present invention When used for a liquid crystal display device having a small cell gap, it is suitable to increase the content of the compound represented by the general formula (XI). When used for a liquid crystal display device having a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XI). Moreover, when used for a liquid crystal display element used in a low temperature environment, it is suitable to reduce the content of the compound represented by the general formula (XI). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XI).
  • the compound represented by the general formula (XI) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XI-1).
  • R 110 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.
  • the content of the compound represented by the general formula (XI-1) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably 1% by mass or more and 30% by mass or less, more preferably 2% by mass or more and 25% by mass or less, and further preferably 2% by mass or more and 22% by mass or less.
  • the compound represented by the general formula (XI-1) used in the liquid crystal composition of the present invention is specifically from the compound group represented by the formula (45.1) to the formula (45.4). It is preferable that it is at least one compound selected, and among these, it is preferable to contain at least one compound selected from the group of compounds represented by formula (45.2) to formula (45.4). It is more preferable to contain the compound represented by 45.2).
  • the content of the compound represented by the formula (45.2) is determined in consideration of solubility at low temperatures, transition temperature, electrical reliability, and the like. It is preferably 1% by mass or more and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, still more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more. 10 mass% or less is especially preferable. Among particularly preferable ranges, for example, 3% by mass to 10% by mass, 3% by mass to 8% by mass, 3% by mass to 6% by mass, 3% by mass to 4% by mass, 4% by mass to 10% by mass. % Or less, 6 mass% or more and 10 mass% or less, 8 mass% or more and 10 mass% or less.
  • the content of the compound represented by the formula (45.3) is determined in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably 1% by mass or more and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, still more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more. 10 mass% or less is especially preferable. Among particularly preferable ranges, for example, 3% by mass to 10% by mass, 3% by mass to 8% by mass, 3% by mass to 6% by mass, 3% by mass to 4% by mass, 4% by mass to 10% by mass. % Or less, 6 mass% or more and 10 mass% or less, 8 mass% or more and 10 mass% or less.
  • the content of the compound represented by the formula (45.4) is determined in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably 1% by mass or more and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, still more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more. 10 mass% or less is especially preferable.
  • the compound represented by the general formula (XI) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XI-2).
  • R 110 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.
  • the content of the compound represented by the general formula (XI-2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably 1% by mass or more and 20% by mass or less, preferably 3% by mass or more and 20% by mass or less, preferably 4% by mass or more and 20% by mass or less, preferably 6% by mass or more and 15% by mass or less, and 9% by mass. % To 12% by mass is preferable.
  • the compound represented by the general formula (XI-2) used in the liquid crystal composition of the present invention is specifically from the compound group represented by the formula (45.11) to the formula (45.14). It is preferable that it is at least one compound selected, and among these, it is preferable to contain at least one compound selected from the group of compounds represented by formula (45.12) to formula (45.14). It is more preferable to contain the compound represented by 45.12).
  • the compound represented by the general formula (X) is preferably at least one compound selected from the group of compounds represented by the general formula (XII).
  • X 121 to X 126 each independently represents a fluorine atom or a hydrogen atom
  • R 120 represents an alkyl group having 1 to 5 carbon atoms and an alkenyl group having 2 to 5 carbon atoms. Alternatively, it represents an alkoxy group having 1 to 4 carbon atoms
  • Y 12 represents a fluorine atom or —OCF 3 .
  • the compound represented by the general formula (XII) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XII-1).
  • R 120 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.
  • the content of the compound represented by the general formula (XII-1) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably 1% by mass or more and 15% by mass or less, preferably 2% by mass or more and 10% by mass or less, preferably 3% by mass or more and 8% by mass or less, and more preferably 4% by mass or more and 6% by mass or less.
  • the compound represented by the general formula (XII-1) used in the liquid crystal composition of the present invention is specifically from the compound group represented by the formula (46.1) to the formula (46.4). It is preferable that it is at least one compound selected, and among these, it is preferable to contain at least one compound selected from the compound group represented by formula (46.2) to formula (46.4).
  • the compound represented by the general formula (XII) is preferably a compound represented by the general formula (XII-2).
  • R 120 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.
  • the content of the compound represented by the general formula (XII-2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably 1% by mass or more and 20% by mass or less, preferably 3% by mass or more and 20% by mass or less, preferably 4% by mass or more and 17% by mass or less, preferably 6% by mass or more and 15% by mass or less, and 9% by mass. % To 13% by mass is preferable.
  • the compound represented by the general formula (XII-2) used in the liquid crystal composition of the present invention is specifically from the compound group represented by the formula (47.1) to the formula (47.4). It is preferable that it is at least one compound selected, and among them, it is preferable to contain at least one compound selected from the compound group represented by formula (47.2) to formula (47.4).
  • the compound represented by the general formula (M) is preferably at least one compound selected from the group of compounds represented by the general formula (XIII).
  • X 131 to X 135 each independently represents a fluorine atom or a hydrogen atom
  • R 130 represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms. Alternatively, it represents an alkoxy group having 1 to 4 carbon atoms
  • Y 13 represents a fluorine atom or —OCF 3 .
  • the content of the compound represented by the general formula (XIII) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (XIII) is 2 to 30% by mass in one embodiment of the present invention and 2 to 30% by mass with respect to the total mass of the liquid crystal composition of the present invention. 4-30% by weight, in yet another embodiment 5-30% by weight, in yet another embodiment 7-30% by weight, in yet another embodiment 9-30% by weight, and still another embodiment. 11 to 30% by weight, yet another embodiment 13 to 30% by weight, yet another embodiment 14 to 30% by weight, yet another embodiment 16 to 30% by weight, yet another In the embodiment, it is 20 to 30% by mass.
  • the content of the compound represented by the general formula (XIII) is 2 to 25% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention.
  • the content of the compound is 2 to 20% by mass.
  • the content of the compound is 2 to 15% by mass.
  • the content of the compound is 2 to 10%.
  • the content of the compound is 2 to 5% by mass.
  • the liquid crystal composition of the present invention When used for a liquid crystal display device having a small cell gap, it is suitable to increase the content of the compound represented by the general formula (XIII). When used for a liquid crystal display element with a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XIII). In addition, when used for a liquid crystal display element used in a low temperature environment, it is suitable to reduce the content of the compound represented by the general formula (XIII). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XIII).
  • the compound represented by the general formula (XIII) is preferably a compound represented by the general formula (XIII-1).
  • R 130 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.
  • the compound represented by the general formula (XIII-1) is preferably contained in an amount of 1% by mass to 25% by mass with respect to the total mass of the liquid crystal composition of the present invention, and preferably 3% by mass or more and 25% by mass or less.
  • the content is preferably 5% by mass or more and 20% by mass or less, and more preferably 10% by mass or more and 15% by mass or less.
  • the compound represented by the general formula (XIII-1) is preferably at least one compound selected from the group of compounds represented by the formulas (48.1) to (48.4).
  • the compound represented by (48.2) is preferable.
  • the compound represented by the general formula (XIII) is preferably a compound represented by the general formula (XIII-2).
  • R 130 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.
  • the compound represented by the general formula (XIII-2) is preferably contained in an amount of 5% by mass or more and 25% by mass or less, and preferably 6% by mass or more and 25% by mass or less based on the total mass of the liquid crystal composition of the present invention.
  • the content is preferably 8% by mass or more and 20% by mass or less, and more preferably 9% by mass or more and 14% by mass or less.
  • the compound represented by the general formula (XIII-2) is preferably at least one compound selected from the compound group represented by the formulas (49.1) to (49.4).
  • a compound represented by (49.1) and / or the formula (49.2) is preferable.
  • the compound represented by the general formula (XIII) is preferably a compound represented by the general formula (XIII-3).
  • R 130 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.
  • the compound represented by the general formula (XIII-3) is preferably contained in an amount of 2% by mass to 20% by mass with respect to the total mass of the liquid crystal composition of the present invention, and is preferably 4% by mass to 20% by mass. It is preferable to contain, it is preferable to contain 9 to 17 mass%, and it is preferable to contain 11 to 14 mass%.
  • the compound represented by the general formula (XIII-3) is preferably at least one compound selected from the group of compounds represented by formulas (50.1) to (50.4), A compound represented by Formula (50.1) and / or Formula (50.2) is preferable.
  • the compound represented by the general formula (M) is preferably at least one compound selected from the group of compounds represented by the general formula (XIV).
  • R 140 represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms
  • X 141 to X 144 are Each independently represents a fluorine atom or a hydrogen atom
  • Y 14 represents a fluorine atom, a chlorine atom or OCF 3
  • Q 14 represents a single bond, —COO— or —CF 2 O—
  • m 14 represents 0 or 1.
  • the content of the compound represented by the general formula (XIV) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (XIV) is 3 to 40% by mass in one embodiment of the present invention and 3 to 40% by mass in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. 7 to 40% by weight, in yet another embodiment 8 to 40% by weight, in yet another embodiment 11 to 40% by weight, in yet another embodiment 12 to 40% by weight, and yet another embodiment 16 to 40% by weight, yet another embodiment 18 to 40% by weight, yet another embodiment 19 to 40% by weight, yet another embodiment 22 to 40% by weight, yet another In the embodiment, it is 25 to 40% by mass.
  • the content of the compound represented by the general formula (XIV) is 3 to 35% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention.
  • the liquid crystal composition of the present invention When used for a liquid crystal display element having a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XIV). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XIV).
  • the compound represented by the general formula (XIV) is preferably a compound represented by the general formula (XIV-1).
  • R 140 represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms
  • Y 14 represents a fluorine atom. Represents a chlorine atom or —OCF 3 .
  • the compound represented by the general formula (XIV-1) is preferably a compound represented by the general formula (XIV-1-1).
  • R 140 represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms.
  • the content of the compound represented by the general formula (XIV-1) is appropriately adjusted in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like.
  • the content of the compound represented by the general formula (XIV-1) is 2% by mass to 30% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. 4 mass% to 30 mass% in yet another embodiment, 7 mass% to 30 mass% in still another embodiment, 10 mass% to 30 mass% in still another embodiment, and still another embodiment. It is 18 mass% or more and 30 mass% or less.
  • the content of the compound represented by the general formula (XIV-1) is 2% by mass or more and 27% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention.
  • it is 2 mass% or more and 24 mass% or less, and in another embodiment, it is 2 mass% or more and less than 21 mass%.
  • the compound represented by the general formula (XIV-1-1) is specifically at least one compound selected from the group of compounds represented by the formulas (51.1) to (51.4). It is preferable that it contains a compound represented by the formula (51.1).
  • the compound represented by the general formula (XIV-1) is preferably a compound represented by the general formula (XIV-1-2).
  • R 140 represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms.
  • the content of the compound represented by the general formula (XIV-1-2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 1% by mass to 15% by mass, preferably 3% by mass to 13% by mass, more preferably 5% by mass to 11% by mass, and preferably 7% by mass to 9% by mass.
  • the compound represented by the general formula (XIV-1-2) is specifically at least one compound selected from the group of compounds represented by the formulas (52.1) to (52.4). Among them, it is preferable to contain a compound represented by the formula (52.4).
  • the compound represented by the general formula (XIV) is preferably a compound represented by the general formula (XIV-2).
  • R 140 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 141 to X 144 Each independently represents a fluorine atom or a hydrogen atom
  • Y 14 represents a fluorine atom, a chlorine atom or —OCF 3 .
  • the content of the compound represented by the general formula (XIV-2) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (XIV-2) is 3 to 40% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. 7-40% by weight in a form, 8-40% by weight in yet another embodiment, 10-40% by weight in yet another embodiment, 11-40% by weight in yet another embodiment, and yet another 12-40% by weight in an embodiment, 18-40% by weight in yet another embodiment, 19-40% by weight in yet another embodiment, 21-40% by weight in yet another embodiment, and further In another embodiment, it is 22-40% by weight.
  • the content of the compound represented by the general formula (XIV-2) is 3 to 35% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. 3 to 25% by weight in yet another embodiment, 3 to 20% by weight in yet another embodiment, 3 to 15% by weight in yet another embodiment, and 3 to 10% by weight in yet another embodiment. .
  • the liquid crystal composition of the present invention When used for a liquid crystal display device having a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XIV-2). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XIV-2).
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-1).
  • R 140 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.
  • the content of the compound represented by the general formula (XIV-2-1) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 1% by mass to 15% by mass, preferably 3% by mass to 13% by mass, more preferably 5% by mass to 11% by mass, and preferably 7% by mass to 9% by mass.
  • the compound represented by the general formula (XIV-2-1) is specifically at least one compound selected from the group of compounds represented by the formulas (53.1) to (53.4). Among them, it is preferable to contain a compound represented by the formula (53.4).
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-2).
  • R 140 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.
  • the content of the compound represented by the general formula (XIV-2-2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferable that they are 3 mass% or more and 20 mass% or less, 6 mass% or more and 17 mass% or less are preferable, 6 mass% or more and 15 mass% or less are preferable, and 6 mass% or more and 9 mass% or less are preferable.
  • the compound represented by the general formula (XIV-2-2) is specifically at least one compound selected from the group of compounds represented by the formulas (54.1) to (54.4). Among them, it is preferable to contain a compound represented by formula (54.2) and / or formula (54.4).
  • the content of the compound represented by the formula (54.2) is preferably 5% by mass or more and 35% by mass or less with respect to the total mass of the liquid crystal composition of the present invention. 5% by mass to 25% by mass is preferable, 5% by mass to 22% by mass is preferable, 6% by mass to 20% by mass is preferable, and 6% by mass to 15% by mass is preferable. It is preferable that it is 6 mass% or more and 9 mass% or less.
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-3).
  • R 140 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.
  • the content of the compound represented by the general formula (XIV-2-3) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 5% by mass to 30% by mass, preferably 9% by mass to 27% by mass, more preferably 12% by mass to 24% by mass, and preferably 12% by mass to 20% by mass.
  • the compound represented by the general formula (XIV-2-3) is specifically at least one compound selected from the group of compounds represented by the formulas (55.1) to (55.4). Among them, it is preferable to contain a compound represented by formula (55.2) and / or formula (55.4).
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-4).
  • R 140 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.
  • the content of the compound represented by the general formula (XIV-2-4) is appropriately determined for each embodiment in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Adjusted.
  • the content of the compound represented by the general formula (XIV-2-4) is 2 to 35% by mass in one embodiment of the present invention relative to the total mass of the liquid crystal composition of the present invention. 5 to 35 wt% in yet another embodiment, 8 to 35 wt% in yet another embodiment, 9 to 35 wt% in yet another embodiment, 10 to 35 wt% in yet another embodiment, and even more In another embodiment, from 18 to 35% by weight, in yet another embodiment from 21 to 35% by weight, in yet another embodiment from 22 to 35% by weight, and in yet another embodiment, the content of the compound is 24-35% by mass.
  • the content of the compound represented by the general formula (XIV-2-4) is 2 to 30% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention.
  • liquid crystal composition of the present invention When used for a liquid crystal display device having a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XIV-2-4). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XIV-2-4).
  • the compound represented by the general formula (XIV-2-4) is specifically at least one compound selected from the group of compounds represented by the formulas (56.1) to (56.4). Among them, it is preferable to contain a compound represented by formula (56.1), formula (56.2), and / or formula (56.4).
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-5).
  • R 140 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.
  • the content of the compound represented by the general formula (XIV-2-5) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 5% by mass or more and 25% by mass or less, preferably 10% by mass or more and 22% by mass or less, preferably 13% by mass or more and 18% by mass or less, and more preferably 13% by mass or more and 15% by mass or less.
  • the compound represented by the general formula (XIV-2-5) is specifically at least one compound selected from the group of compounds represented by formula (57.1) to formula (57.4). is there. Among these, it is preferable to contain a compound represented by the formula (57.1).
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-6).
  • R 140 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.
  • the content of the compound represented by the general formula (XIV-2-6) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. On the other hand, it is preferably 5% by mass or more and 25% by mass or less, preferably 10% by mass or more and 22% by mass or less, preferably 15% by mass or more and 20% by mass or less, and more preferably 15% by mass or more and 17% by mass or less.
  • the compound represented by the general formula (XIV-2-6) is specifically at least one compound selected from the group of compounds represented by formula (58.1) to formula (58.4). It is preferable that there is a compound represented by the formula (58.2).
  • the compound represented by the general formula (XIV) is preferably a compound represented by the general formula (XIV-3).
  • R 140 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.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, it is two or more types.
  • the content of the compound represented by the general formula (XIV-3) is the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, birefringence, and the like. On the other hand, it is preferably 2.5% by mass or more and 25% by mass or less, preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less.
  • the compound represented by the general formula (XIV-3) is specifically at least one compound selected from the group of compounds represented by formula (61.1) to formula (61.4).
  • the compound represented by formula (61.2) is more preferable.
  • the compound represented by the general formula (M) is preferably a compound represented by the general formula (XV).
  • R 150 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
  • a 151 represents 1,4- It represents a cyclohexylene group or a 1,4-phenylene group, and the hydrogen atom on the 1,4-phenylene group may be substituted with a fluorine atom.
  • the content of the compound represented by the general formula (XV) is appropriately adjusted for each embodiment in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (XV) is 0.5 to 30% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is from 23 to 30% by mass, and in still another embodiment, the content is from 25 to 30% by mass.
  • the content of the compound represented by the general formula (XV) is 0.5 to 25% by mass in one embodiment of the present invention relative to the total mass of the liquid crystal composition of the present invention. 0.5 to 20% by weight in this embodiment, 0.5 to 13% by weight in yet another embodiment, 0.5 to 9% by weight in yet another embodiment, and 1 in another embodiment. ⁇ 6% by mass.
  • the compound represented by the general formula (XV) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XV-1).
  • R 150 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.
  • the content of the compound represented by the general formula (XV-1) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (XV-1) is 1 to 30% by mass in one embodiment of the present invention relative to the total mass of the liquid crystal composition of the present invention. 3-30% by weight in a form, 6-30% by weight in yet another embodiment, 9-30% by weight in yet another embodiment, 14-30% by weight in yet another embodiment, and yet another In the embodiment, it is 18 to 30% by mass.
  • the content of the compound represented by the general formula (XV-1) is 3 to 20% by mass in one embodiment of the present invention relative to the total mass of the liquid crystal composition of the present invention.
  • the content of the compound is 4 to 13% by mass, and in still another embodiment, the content of the compound is 4 to 10% by mass, and in still another embodiment, the content of the compound is 4 to 4% by mass. 7% by mass.
  • the compound represented by the general formula (XV-1) used in the liquid crystal composition of the present invention is specifically from the compound group represented by the formula (59.1) to the formula (59.4). It is preferable that it is at least one compound selected, and among these, it is more preferable to contain a compound represented by the formula (59.2).
  • the compound represented by the general formula (XV) is preferably a compound represented by the general formula (XV-2).
  • R 150 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.
  • the content of the compound represented by the general formula (XV-2) is appropriately adjusted in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (XV-2) is determined in consideration of solubility at a low temperature, transition temperature, electrical reliability, birefringence, and the like.
  • the total mass is preferably 0.5% by mass or more and 20% by mass or less, preferably 1% by mass or more and 15% by mass or less, and preferably 1% by mass or less and 10% by mass or less. It is preferable that it is 1 mass% or less and 4 mass% or less.
  • the compound represented by the general formula (XV-2) used in the liquid crystal composition of the present invention is specifically from the group of compounds represented by the formula (60.1) to the formula (60.4). It is preferable that it is at least one compound selected, and among these, it is preferable to contain a compound represented by the formula (60.2).
  • the liquid crystal composition of the present invention preferably does not contain a compound having a structure in which oxygen atoms such as a peracid (—CO—OO—) structure are bonded in the molecule.
  • the content of the compound having a carbonyl group is preferably 5% by mass or less with respect to the total mass of the composition, and 3% by mass or less. More preferably, it is more preferable to set it as 1 mass% or less, and it is most preferable not to contain substantially.
  • the content of the compound substituted with chlorine atoms is preferably 15% by mass or less, more preferably 10% by mass or less, based on the total mass of the composition.
  • the content of a compound in which all the ring structures in the molecule are 6-membered rings is 80 It is preferably at least mass%, more preferably at least 90 mass%, even more preferably at least 95 mass%, and the liquid crystal is composed only of a compound having substantially all 6-membered ring structures in the molecule. Most preferably it constitutes a composition.
  • the content of the compound having a cyclohexenylene group as a ring structure is determined based on the total mass of the composition.
  • the content is preferably 10% by mass or less, more preferably 5% by mass or less, and still more preferably substantially not contained.
  • the content of a compound having a 2-methylbenzene-1,4-diyl group in the molecule, in which a hydrogen atom may be substituted with a halogen may be reduced.
  • the content of the compound having a 2-methylbenzene-1,4-diyl group in the molecule is preferably 10% by mass or less, and preferably 5% by mass or less based on the total mass of the composition. Is more preferable, and it is still more preferable not to contain substantially.
  • the alkenyl group when the compound contained in the composition of the first embodiment of the present invention has an alkenyl group as a side chain, when the alkenyl group is bonded to cyclohexane, the alkenyl group has 2 to 5 carbon atoms.
  • the alkenyl group is bonded to benzene, the number of carbon atoms of the alkenyl group is preferably 4 to 5, and the unsaturated bond of the alkenyl group and benzene are directly bonded. Preferably not.
  • the liquid crystal composition of the present invention may contain a polymerizable compound in order to produce a liquid crystal display element such as a PS mode, a transverse electric field type PSA mode, or a transverse electric field type PSVA mode.
  • a polymerizable compound such as a PS mode, a transverse electric field type PSA mode, or a transverse electric field type PSVA mode.
  • the polymerizable compound that can be used include a photopolymerizable monomer that undergoes polymerization by energy rays such as light.
  • the structure has, for example, a liquid crystal skeleton in which a plurality of six-membered rings such as biphenyl derivatives and terphenyl derivatives are connected. Examples thereof include a polymerizable compound. More specifically, a bifunctional monomer represented by the general formula (XX) is preferable.
  • X 201 and X 202 each independently represent a hydrogen atom or a methyl group
  • Sp 201 and Sp 202 each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms, or —O— (CH 2 ) s — (wherein s represents an integer of 2 to 7, Represents an aromatic ring))
  • Z 201 represents —OCH 2 —, —CH 2 O—, —COO—, —OCO—, —CF 2 O—, —OCF 2 —, —CH 2 CH 2 —, —CF 2 CF 2 —, —CH ⁇ CH—COO—, —CH ⁇ CH—OCO—, —COO—CH ⁇ CH—, —OCO—CH ⁇ CH—, —COO—CH 2 CH 2 —, —OCO—CH 2 CH 2 —, —CH 2 CH 2 —COO—, —CH 2 CH 2 —OCO—, —COO—CH 2 CH 2
  • X 201 and X 202 are each preferably a diacrylate derivative that represents a hydrogen atom, or a dimethacrylate derivative that has a methyl group, and a compound in which one represents a hydrogen atom and the other represents a methyl group.
  • diacrylate derivatives are the fastest, dimethacrylate derivatives are slow, asymmetric compounds are in the middle, and a preferred embodiment can be used depending on the application.
  • a dimethacrylate derivative is particularly preferable.
  • Sp 201 and Sp 202 each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms, or —O— (CH 2 ) s —, but at least one of them is a single bond in a PSA display element.
  • a compound in which both represent a single bond or one in which one represents a single bond and the other represents an alkylene group having 1 to 8 carbon atoms or —O— (CH 2 ) s — is preferable.
  • an alkyl group having 1 to 4 carbon atoms is preferable, and s is preferably 1 to 4.
  • Z 201 represents —OCH 2 —, —CH 2 O—, —COO—, —OCO—, —CF 2 O—, —OCF 2 —, —CH 2 CH 2 —, —CF 2 CF 2 —, or A single bond is preferable, —COO—, —OCO—, or a single bond is more preferable, and a single bond is particularly preferable.
  • M 201 represents a 1,4-phenylene group, a trans-1,4-cyclohexylene group, or a single bond in which any hydrogen atom may be substituted with a fluorine atom, A single bond is preferred.
  • Z 201 is preferably a linking group other than a single bond, and when M 201 is a single bond, Z 201 is preferably a single bond.
  • the ring structure between Sp 201 and Sp 202 is specifically preferably the structure described below.
  • both ends are bonded to Sp 201 or Sp 202 .
  • Polymerizable compounds containing these skeletons are optimal for PSA-type liquid crystal display elements because of their ability to regulate alignment after polymerization, and display alignment is suppressed, or display unevenness is suppressed or does not occur at all.
  • the polymerizable monomer is preferably at least one compound selected from the group of compounds represented by general formula (XX-1) to general formula (XX-4), among which general formula (XX- The compound represented by 2) is more preferable.
  • Sp 20 represents an alkylene group having 2 to 5 carbon atoms.
  • the polymerization proceeds even when no polymerization initiator is present, but may contain a polymerization initiator in order to promote the polymerization.
  • the polymerization initiator include benzoin ethers, benzophenones, acetophenones, benzyl ketals, acylphosphine oxides, and the like.
  • the liquid crystal composition in the present invention may further contain a compound represented by the general formula (Q).
  • R Q represents a straight-chain alkyl group or branched alkyl group having 1 to 22 carbon atoms, one or two or more CH 2 groups in the alkyl group, an oxygen atom May be substituted with —O—, —CH ⁇ CH—, —CO—, —OCO—, —COO—, —C ⁇ C—, —CF 2 O—, —OCF 2 — so as not to be directly adjacent
  • MQ represents a trans-1,4-cyclohexylene group, a 1,4-phenylene group, or a single bond.
  • R Q represents a linear or branched alkyl group having 1 to 22 carbon atoms, and one or more CH 2 groups in the alkyl group are —O —, —CH ⁇ CH—, —CO—, —OCO—, —COO—, —C ⁇ C—, —CF 2 O—, —OCF 2 — may be substituted.
  • MQ represents a trans-1,4-cyclohexylene group, a 1,4-phenylene group or a single bond, and a trans-1,4-cyclohexylene group or a 1,4-phenylene group is preferred.
  • the compound represented by the general formula (Q) is preferably at least one compound selected from the group of compounds represented by the following general formulas (Qa) to (Qd): More preferably, the compound is represented by the general formula (Qc) and / or (Qd).
  • R Q1 is preferably a linear alkyl group having 1 to 10 carbon atoms or a branched alkyl group
  • R Q2 is preferably a linear alkyl group having 1 to 20 carbon atoms or a branched alkyl group
  • R Q3 Is preferably a linear alkyl group having 1 to 8 carbon atoms, a branched alkyl group, a linear alkoxy group or a branched alkoxy group
  • L Q is a linear alkylene group having 1 to 8 carbon atoms or a branched alkylene group. preferable.
  • the compound represented by the general formula (Q) preferably contains one or two compounds, more preferably contains one to five compounds, and the content is It is preferably 0.001 to 1% by mass, preferably 0.001 to 0.1% by mass, and 0.001 to 0.05% by mass with respect to the total mass of the liquid crystal composition of the present invention. Preferably there is.
  • the liquid crystal composition containing the polymerizable compound of the present invention is provided with liquid crystal alignment ability by polymerizing the polymerizable compound contained therein by ultraviolet irradiation, and transmits light through the birefringence of the liquid crystal composition.
  • liquid crystal display element that controls As liquid crystal display elements, ECB-LCD, VA-LCD, FFS-LCD, AM-LCD (active matrix liquid crystal display element), TN (nematic liquid crystal display element), STN-LCD (super twisted nematic liquid crystal display element), OCB- Although it is useful for LCD, VA-IPS-LCD, and IPS-LCD (in-plane switching liquid crystal display element), it is particularly useful for AM-LCD and can be used for transmissive or reflective liquid crystal display elements.
  • the two substrates of the liquid crystal cell used in the liquid crystal display element can be made of a transparent material having flexibility such as glass or plastic, and one of them can be an opaque material such as silicon.
  • a transparent substrate having a transparent electrode layer can be obtained, for example, by sputtering indium tin oxide (ITO) on a transparent substrate such as a glass plate.
  • the color filter can be produced by, for example, a pigment dispersion method, a printing method, an electrodeposition method, or a dyeing method.
  • a method for producing a color filter by a pigment dispersion method will be described as an example.
  • a curable coloring composition for a color filter is applied onto the transparent substrate, subjected to patterning treatment, and cured by heating or light irradiation. By performing this process for each of the three colors red, green, and blue, a pixel portion for a color filter can be manufactured.
  • a pixel electrode provided with an active element such as a TFT or a thin film diode may be provided on the substrate.
  • the substrate is opposed so that the transparent electrode layer is on the inside.
  • the thickness of the obtained light control layer is 1 to 100 ⁇ m. More preferably, the thickness is 1.5 to 10 ⁇ m.
  • the polarizing plate it is preferable to adjust the product of the refractive index anisotropy ⁇ n of the liquid crystal and the cell thickness d so that the contrast is maximized.
  • the polarizing axis of each polarizing plate can be adjusted so that the viewing angle and contrast are good.
  • a retardation film for widening the viewing angle can also be used.
  • the spacer examples include columnar spacers made of glass particles, plastic particles, alumina particles, a photoresist material, and the like. Thereafter, a sealant such as an epoxy thermosetting composition is screen-printed on the substrates with a liquid crystal inlet provided, the substrates are bonded together, and heated to thermally cure the sealant.
  • a sealant such as an epoxy thermosetting composition is screen-printed on the substrates with a liquid crystal inlet provided, the substrates are bonded together, and heated to thermally cure the sealant.
  • a normal vacuum injection method or an ODF method can be used as a method of sandwiching the polymerizable compound-containing liquid crystal composition between the two substrates.
  • a vacuum injection method there is a problem that an injection mark remains instead of a drop mark.
  • it can use more suitably for the display element manufactured using ODF method.
  • a sealant such as epoxy photothermal curing is drawn on a backplane or frontplane substrate using a dispenser in a closed-loop bank shape, and then removed.
  • a liquid crystal display element can be manufactured by bonding a front plane and a back plane after dropping a predetermined amount of the liquid crystal composition in the air.
  • the liquid crystal composition of the present invention can be preferably used because the liquid crystal composition can be stably dropped in the ODF process.
  • an appropriate polymerization rate is desirable in order to obtain good alignment performance of liquid crystals. Therefore, active energy rays such as ultraviolet rays or electron beams are irradiated singly or in combination or sequentially.
  • the method of polymerizing by is preferred.
  • ultraviolet rays When ultraviolet rays are used, a polarized light source or a non-polarized light source may be used.
  • the polymerization is performed in a state where the polymerizable compound-containing liquid crystal composition is sandwiched between two substrates, at least the substrate on the irradiation surface side must be given appropriate transparency to the active energy rays. I must.
  • the orientation state of the unpolymerized part is changed by changing conditions such as an electric field, a magnetic field, or temperature, and further irradiation with active energy rays is performed. Then, it is possible to use a means for polymerization.
  • a means for polymerization In particular, when ultraviolet exposure is performed, it is preferable to perform ultraviolet exposure while applying an alternating electric field to the polymerizable compound-containing liquid crystal composition.
  • the alternating electric field to be applied is preferably an alternating current having a frequency of 10 Hz to 10 kHz, more preferably a frequency of 60 Hz to 10 kHz, and the voltage is selected depending on a desired pretilt angle of the liquid crystal display element.
  • the pretilt angle of the liquid crystal display element can be controlled by the applied voltage.
  • the pretilt angle is preferably controlled from 80 degrees to 89.9 degrees from the viewpoint of alignment stability and contrast.
  • the temperature during irradiation is preferably within a temperature range in which the liquid crystal state of the liquid crystal composition of the present invention is maintained. Polymerization is preferably performed at a temperature close to room temperature, that is, typically at a temperature of 15 to 35 ° C.
  • a lamp for generating ultraviolet rays a metal halide lamp, a high-pressure mercury lamp, an ultra-high pressure mercury lamp, or the like can be used.
  • a wavelength of the ultraviolet-rays to irradiate it is preferable to irradiate the ultraviolet-ray of the wavelength range which is not the absorption wavelength range of a liquid crystal composition, and it is preferable to cut and use an ultraviolet-ray as needed.
  • Intensity of ultraviolet irradiation is preferably from 0.1mW / cm 2 ⁇ 100W / cm 2, 2mW / cm 2 ⁇ 50W / cm 2 is more preferable.
  • the amount of energy of ultraviolet rays to be irradiated can be adjusted as appropriate, but is preferably 10 mJ / cm 2 to 500 J / cm 2, and more preferably 100 mJ / cm 2 to 200 J / cm 2 .
  • the intensity may be changed.
  • the time for irradiating with ultraviolet rays is appropriately selected depending on the intensity of the irradiated ultraviolet rays, but is preferably from 10 seconds to 3600 seconds, and more preferably from 10 seconds to 600 seconds.
  • the liquid crystal display device using the liquid crystal composition of the present invention is useful for achieving both high-speed response and suppression of display failure, and is particularly useful for a liquid crystal display device for active matrix driving, including VA mode, PSVA mode, It can be applied to a liquid crystal display element for PSA mode, IPS (in-plane switching) mode, FFS (fringe field switching) mode, VA-IPS mode, or ECB mode.
  • FIG. 1 is a cross-sectional view showing a liquid crystal display element including two substrates facing each other, a sealing material provided between the substrates, and liquid crystal sealed in a sealing region surrounded by the sealing material. It is.
  • the TFT layer 102 and the pixel electrode 103 are provided on the first substrate 100, the backplane on which the passivation film 104 and the first alignment film 105 are provided, and the black matrix on the second substrate 200.
  • 202, a color filter 203, a planarization film (overcoat layer) 201, and a transparent electrode 204 are provided, and a second alignment film 205 is provided thereon, and is provided between the front plane facing the back plane and the substrate.
  • a sealing material 301 and a liquid crystal layer 303 sealed in a sealing region surrounded by the sealing material, and protrusions (columnar spacers) 302 and 304 are provided on a substrate surface in contact with the sealing material 301. The specific aspect of a liquid crystal display element is shown.
  • the first substrate or the second substrate is not particularly limited as long as it is substantially transparent, and glass, ceramics, plastics, or the like can be used.
  • Plastic substrates include cellulose derivatives such as cellulose, triacetyl cellulose, diacetyl cellulose, polycycloolefin derivatives, polyesters such as polyethylene terephthalate and polyethylene naphthalate, polypropylene, polyethylene, etc.
  • Inorganic-organic composite materials such as glass fiber-acrylic resin can be used.
  • the function of the barrier film is to reduce the moisture permeability of the plastic substrate and to improve the reliability of the electrical characteristics of the liquid crystal display element.
  • the barrier film is not particularly limited as long as it has high transparency and low water vapor permeability. Generally, vapor deposition, sputtering, chemical vapor deposition method (CVD method) using an inorganic material such as silicon oxide is used. ) Is used.
  • the same material or different materials may be used as the first substrate or the second substrate, and there is no particular limitation.
  • Use of a glass substrate is preferable because a liquid crystal display element having excellent heat resistance and dimensional stability can be produced.
  • a plastic substrate is preferable because it is suitable for a manufacturing method using a roll-to-roll method and is suitable for weight reduction or flexibility. For the purpose of imparting flatness and heat resistance, good results can be obtained by combining a plastic substrate and a glass substrate.
  • a substrate is used as the material of the first substrate 100 or the second substrate 200.
  • the TFT layer 102 and the pixel electrode 103 are provided on the first substrate 100. These are manufactured by a normal array process.
  • a backplane is obtained by providing a passivation film 104 and a first alignment film 105 thereon.
  • a passivation film 104 (also referred to as an inorganic protective film) is a film for protecting the TFT layer.
  • a nitride film (SiNx), an oxide film (SiOx), or the like is formed by a chemical vapor deposition (CVD) technique or the like.
  • the first alignment film 105 is a film having a function of aligning liquid crystals, and a polymer material such as polyimide is usually used in many cases.
  • a coating solution an alignment agent solution composed of a polymer material and a solvent is used. Since the alignment film may hinder the adhesive force with the sealing material, a pattern is applied in the sealing region.
  • a printing method such as a flexographic printing method or a droplet discharge method such as an ink jet is used.
  • the applied alignment agent solution is crosslinked and cured by baking after the solvent is evaporated by temporary drying. Thereafter, an alignment process is performed to provide an alignment function.
  • Alignment treatment is usually performed by a rubbing method.
  • the polymer film formed as described above is rubbed in one direction using a rubbing cloth made of fibers such as rayon, thereby producing liquid crystal alignment ability.
  • a photo-alignment method is a method of generating alignment ability by irradiating polarized light on an alignment film containing an organic material having photosensitivity, and does not cause the generation of scratches or dust on the substrate due to the rubbing method.
  • the organic material in the photo-alignment method include a material containing a dichroic dye.
  • Dichroic dyes include molecular orientation induction or isomerization reaction (eg, azobenzene group), dimerization reaction (eg, cinnamoyl group), photocrosslinking reaction (eg, benzophenone group) due to Weigert effect resulting from photodichroism.
  • a photo-alignment group that causes a photoreaction that causes liquid crystal alignment ability
  • a photolysis reaction eg, polyimide group
  • the applied alignment agent solution is irradiated with light having an arbitrary deflection (polarized light), whereby an alignment film having alignment ability in an arbitrary direction can be obtained.
  • One front plane is provided with a black matrix 202, a color filter 203, a planarizing film 201, a transparent electrode 204, and a second alignment film 205 on a second substrate 200.
  • the black matrix 202 is produced by, for example, a pigment dispersion method. Specifically, a color resin solution in which a black colorant is uniformly dispersed for forming a black matrix is applied on the second substrate 200 provided with the barrier film 201 to form a colored layer. Subsequently, the colored layer is baked and cured. A photoresist is applied on this and prebaked. After exposing the photoresist through a mask pattern, development is performed to pattern the colored layer. Thereafter, the photoresist layer is peeled off and the colored layer is baked to complete the black matrix 202.
  • a color resin solution in which a black colorant is uniformly dispersed for forming a black matrix is applied on the second substrate 200 provided with the barrier film 201 to form a colored layer. Subsequently, the colored layer is baked and cured. A photoresist is applied on this and prebaked. After exposing the photoresist through a mask pattern, development is performed to pattern the colored layer. Thereafter, the photo
  • a photoresist type pigment dispersion may be used.
  • a photoresist-type pigment dispersion is applied, pre-baked, exposed through a mask pattern, and then developed to pattern the colored layer. Thereafter, the photoresist layer is peeled off and the colored layer is baked to complete the black matrix 202.
  • the color filter 203 is produced by a pigment dispersion method, an electrodeposition method, a printing method, a dyeing method, or the like.
  • a pigment dispersion method as an example, a color resin liquid in which a pigment (for example, red) is uniformly dispersed is applied onto the second substrate 200, and after baking and curing, a photoresist is applied thereon and prebaked. After the photoresist is exposed through a mask pattern, development is performed and patterning is performed. Thereafter, the photoresist layer is peeled off and baked again to complete the (red) color filter 203.
  • a green color filter 203 and a blue color filter 203 are formed.
  • the transparent electrode 204 is provided on the color filter 203 (if necessary, an overcoat layer (201) is provided on the color filter 203 for surface flattening).
  • the transparent electrode 204 preferably has a high transmittance, and preferably has a low electrical resistance.
  • the transparent electrode 204 is formed by sputtering an oxide film such as ITO.
  • a passivation film may be provided on the transparent electrode 204 for the purpose of protecting the transparent electrode 204.
  • the second alignment film 205 is the same as the first alignment film 105 described above.
  • the shape of the columnar spacer is not particularly limited, and the horizontal cross section can be various shapes such as a circle and a polygon such as a quadrangle. A polygonal shape is particularly preferable.
  • the protrusion shape is preferably a truncated cone or a truncated pyramid.
  • the material of the columnar spacer is not particularly limited as long as it is a sealing material, an organic solvent used for the sealing material, or a material that does not dissolve in liquid crystal, but it may be a synthetic resin (curable resin) in terms of processing and weight reduction. preferable.
  • the protrusion can be provided on the surface of the first substrate in contact with the sealing material by a photolithography method or a droplet discharge method. For these reasons, it is preferable to use a photocurable resin suitable for a photolithography method or a droplet discharge method.
  • FIG. 2 is a diagram of an exposure process using a columnar spacer preparation pattern formed on a black matrix as a photomask pattern.
  • a resin solution for forming columnar spacers (not containing a colorant) is applied on the transparent electrode 204 of the front plane. Subsequently, the resin layer 402 is baked and cured. A photoresist is applied on this and prebaked. After exposing the photoresist through the mask pattern 401, development is performed to pattern the resin layer. Thereafter, the photoresist layer is peeled off, and the resin layer is baked to complete columnar spacers (302 and 304 in FIG. 1).
  • the formation position of the columnar spacer can be determined at a desired position by the mask pattern. Therefore, both the inside of the sealing region of the liquid crystal display element and the outside of the sealing region (sealed material application portion) can be manufactured simultaneously.
  • the columnar spacer is preferably formed so as to be positioned on the black matrix so that the quality of the sealing region does not deteriorate.
  • a columnar spacer manufactured by a photolithography method in this way is sometimes called a column spacer or a photospacer.
  • a mixture of a negative water-soluble resin such as PVA-stilbazo photosensitive resin, a polyfunctional acrylic monomer, an acrylic acid copolymer, and a triazole initiator is used.
  • a color resin in which a colorant is dispersed in a polyimide resin there is no particular limitation, and a spacer can be obtained from a known material in accordance with the compatibility with the liquid crystal or the sealing material to be used.
  • a sealing material (301 in FIG. 1) is applied to the surface of the backplane that contacts the sealing material.
  • the material of the sealing material is not particularly limited, and a curable resin composition in which a polymerization initiator is added to an epoxy or acrylic photocurable, thermosetting, or photothermal combination curable resin is used.
  • a curable resin composition in which a polymerization initiator is added to an epoxy or acrylic photocurable, thermosetting, or photothermal combination curable resin is used.
  • fillers made of inorganic or organic substances may be added.
  • the shape of these fillers is not particularly limited, and includes a spherical shape, a fiber shape, and an amorphous shape.
  • a spherical or fibrous gap material having a monodispersed diameter is mixed, or in order to further strengthen the adhesive force with the substrate, a fibrous substance that easily entangles with the protrusion on the substrate is used. You may mix.
  • the diameter of the fibrous material used at this time is preferably about 1/5 to 1/10 or less of the cell gap, and the length of the fibrous material is preferably shorter than the seal coating width.
  • the material of the fibrous substance is not particularly limited as long as a predetermined shape can be obtained, and synthetic fibers such as cellulose, polyamide, and polyester, and inorganic materials such as glass and carbon can be appropriately selected.
  • the sealing material As a method for applying the sealing material, there are a printing method and a dispensing method, but a dispensing method with a small amount of the sealing material used is desirable.
  • the application position of the sealing material is usually on the black matrix so as not to adversely affect the sealing area.
  • the sealing material application shape is a closed loop shape.
  • the liquid crystal is dropped on the closed loop shape (sealing region) of the front plane coated with the sealing material.
  • a dispenser is used. Since the amount of liquid crystal to be dropped coincides with the volume of the liquid crystal cell, the amount is basically the same as the volume obtained by multiplying the height of the column spacer and the seal application area. However, in order to optimize liquid crystal leakage and display characteristics in the cell bonding process, the amount of liquid crystal to be dropped may be adjusted as appropriate, or the liquid crystal dropping position may be dispersed.
  • the back plane is bonded to the front plane where the sealing material is applied and the liquid crystal is dropped.
  • the front plane and the back plane are adsorbed on a stage having a mechanism for adsorbing a substrate such as an electrostatic chuck, and the second alignment film on the front plane and the first alignment film on the back plane face each other.
  • it is arranged at a position (distance) where the sealing material does not contact the other substrate.
  • the system is depressurized. After decompression is completed, the positions of both substrates are adjusted while confirming the bonding position between the front plane and the back plane (alignment operation).
  • the substrate is brought close to a position where the sealing material on the front plane and the back plane are in contact with each other.
  • the system is filled with an inert gas, and the pressure is gradually returned to normal pressure while releasing the reduced pressure.
  • the front plane and the back plane are bonded together by atmospheric pressure, and a cell gap is formed at the height of the columnar spacer.
  • the sealing material is irradiated with ultraviolet rays to cure the sealing material, thereby forming a liquid crystal cell.
  • a heating step is added in some cases to promote curing of the sealing material. A heating process is often added to enhance the adhesive strength of the sealing material and improve the reliability of electrical characteristics.
  • the measured characteristics are as follows.
  • Tni Nematic phase-isotropic liquid phase transition temperature (° C)
  • ⁇ n Refractive index anisotropy at 298K
  • VHR Voltage holding ratio (%) at 333 K under conditions of frequency 60 Hz and applied voltage 5 V
  • VHR TEG (test element group) for evaluation of electro-optical characteristics in which a liquid crystal composition sample was enclosed was held in a thermostatic bath at 130 ° C. for 1 hour, and then measured under the same conditions as the above-described VHR measurement method. .
  • Burn-in The burn-in evaluation of the liquid crystal display element is performed until the afterimage of the fixed pattern reaches an unacceptable afterimage level when displaying the predetermined fixed pattern in the display area for an arbitrary test time and then displaying the entire screen uniformly.
  • the test time was measured. 1) The test time referred to here indicates the display time of the fixed pattern, and the longer this time is, the more the afterimage is suppressed and the higher the performance. 2) An unacceptable afterimage level is a level at which an afterimage that fails a pass / fail decision is observed.
  • Drop marks The evaluation of the drop marks of the liquid crystal display device was performed by visual observation of the drop marks that appeared white when the entire surface was displayed in black by the following five-step evaluation. 5: No dripping trace (excellent) 4: Acceptable level (good) with very few drops 3: There is a slight drop mark, borderline level of pass / fail judgment (possible with conditions) 2: There is a drop mark, unacceptable level (impossible) 1: There is a drip mark, quite bad (bad)
  • Process suitability is determined by dropping liquid crystal 50pL at a time, "0 to 100 times, 101 to 200 times, 201 to 300 times, " in an ODF process using a constant volume metering pump. The mass of the liquid crystal for each 100 drops was measured and evaluated by the number of drops at which the mass variation reached a size that could not be adapted to the ODF process. It can be said that the more the number of times of dropping, the more stable the dropping over a long time, and the higher the process compatibility.
  • Solubility at low temperature In order to evaluate the solubility at a low temperature, after preparing the liquid crystal composition, 1 g of the liquid crystal composition was weighed in a 2 mL sample bottle, and the following operation state “ ⁇ 20 ° C. (1 hour) in a temperature-controlled test tank. Hold) ⁇ Temperature rise (0.1 ° C / min) ⁇ 0 ° C (1 hour hold) ⁇ Temperature rise (0.1 ° C / min) ⁇ 20 ° C (1 hour hold) ⁇ Temperature drop (-0.1 ° C) / Min) ⁇ 0 ° C. (hold for 1 hour) ⁇ temperature drop ( ⁇ 0.1 ° C./min) ⁇ 20° C.
  • Volatility / contamination of production equipment Evaluation of the volatility of the liquid crystal material was performed by observing the operating state of the vacuum stirring and defoaming mixer using a stroboscope and visually observing the foaming of the liquid crystal material. Specifically, put 0.8kg of the liquid crystal composition in a dedicated container vacuum agitation defoaming mixer having a volume 2.0L, under degassing of 4 kPa, the revolution speed 15S -1, vacuum stirring at rotation speed 7.5S -1 The defoaming mixer was operated and the time until foaming started was measured. The longer the time until foaming starts, the more difficult it is to volatilize and the lower the possibility of contaminating the production equipment, indicating high performance.
  • Example 1 The composition shown in Table 1 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 2 shows the evaluation results of the obtained composition and the liquid crystal display.
  • the composition prepared in Example 1 can continue dripping stably over a long period of time in the ODF process. It was remarkably excellent. Moreover, the liquid crystal display produced in Example 1 was one in which image sticking was suppressed as compared with the liquid crystal display produced in Comparative Example 1.
  • Example 2 The composition shown in Table 3 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 4 shows the evaluation results of the obtained composition and the liquid crystal display.
  • the composition prepared in Example 2 can continue dripping stably over a long period of time in the ODF process. It was remarkably excellent.
  • the liquid crystal display produced in Example 2 was suppressed in burn-in compared to the liquid crystal display produced in Comparative Example 2.
  • Example 5 The composition shown in Table 5 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 6 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Example 6 The composition shown in Table 7 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 8 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Example 10 The composition shown in Table 9 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 10 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Example 14 to 18 The composition shown in Table 11 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 12 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Example 19 A composition shown in Table 13 was prepared, and a liquid crystal display having the structure shown in FIGS. 1 and 2 was produced.
  • Table 14 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Example 24 to 27 The composition shown in Table 15 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 16 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Example 28 to 31 The composition shown in Table 17 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 18 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Examples 32 to 35 The composition shown in Table 19 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 20 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Examples 36 to 39 The composition shown in Table 21 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 22 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Examples 40 to 43 The composition shown in Table 23 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 24 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Example 44 to 47 The composition shown in Table 25 was prepared, and the liquid crystal display of the structure shown in FIG.1 and FIG.2 was produced.
  • Table 26 shows the evaluation results of the obtained composition and the liquid crystal display.
  • Example 48 Using the liquid crystal composition described in Example 6, a VA-IPS device was produced in the same manner as described in Example 1 of WO2012 / 043387. It was confirmed that the fabricated device showed excellent display characteristics.
  • Example 49 Using the liquid crystal composition described in Example 6, the alignment film (SE-5300 manufactured by Nissan Chemical Industries, Ltd.) used in the device described in Example 1 of WO2012 / 043387 was used as a horizontal alignment film ( An IPS device was produced in the same manner except that it was replaced with AL-1051 manufactured by JSR Corporation. It was confirmed that the fabricated device showed excellent display characteristics.
  • the liquid crystal compositions prepared in the above examples had low viscosity and good solubility at low temperatures. Moreover, it was poor in volatility and could suppress device contamination. In addition, in the ODF process, it is possible to suppress the deviation of the dropping amount of the liquid crystal composition, and it is possible to stably produce a liquid crystal display over a long period of time. Moreover, the liquid crystal display produced by the Example was excellent in heat resistance, and maintained the stable display characteristic over a long period of time.
  • the liquid crystal composition having a positive dielectric anisotropy of the present invention has good solubility at low temperatures, and the practical resistance of the product is high because the specific resistance and voltage holding ratio are very little affected by heat and light.
  • a liquid crystal display device including the same can achieve a high-speed response.
  • the liquid crystal composition can be stably dropped in the liquid crystal display element manufacturing process, display defects due to the process can be suppressed and manufacturing can be performed with a high yield, which is very useful.

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