WO2018123417A1 - Composition de cristaux liquides et élément d'affichage à cristaux liquides - Google Patents

Composition de cristaux liquides et élément d'affichage à cristaux liquides Download PDF

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WO2018123417A1
WO2018123417A1 PCT/JP2017/042976 JP2017042976W WO2018123417A1 WO 2018123417 A1 WO2018123417 A1 WO 2018123417A1 JP 2017042976 W JP2017042976 W JP 2017042976W WO 2018123417 A1 WO2018123417 A1 WO 2018123417A1
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group
formula
general formula
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翔太 小坂
麻理奈 後藤
雄一 井ノ上
須藤　豪
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Dic株式会社
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Priority to JP2018523036A priority Critical patent/JP6380825B1/ja
Priority to CN201780070103.7A priority patent/CN109952361A/zh
Publication of WO2018123417A1 publication Critical patent/WO2018123417A1/fr

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    • C—CHEMISTRY; METALLURGY
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    • 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
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    • 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
    • C09K19/14—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
    • C—CHEMISTRY; METALLURGY
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    • 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
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    • 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
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    • 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
    • C09K19/32—Non-steroidal liquid crystal compounds containing condensed ring systems, i.e. fused, bridged or spiro ring systems
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    • 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
    • C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C09K19/38—Polymers
    • C—CHEMISTRY; METALLURGY
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    • 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
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    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells

Definitions

  • the present invention relates to a liquid crystal composition containing a polymerizable compound and a liquid crystal display device using the same.
  • the PSA (Polymer Sustained Alignment) type liquid crystal display device has a structure in which a polymer structure is formed in the cell in order to control the pretilt angle of the liquid crystal molecules, and has been developed as a liquid crystal display device due to its high-speed response and high contrast. Is underway.
  • a PSA type liquid crystal display device is manufactured by injecting a liquid crystal composition containing a polymerizable compound between substrates, irradiating ultraviolet rays in a state where liquid crystal molecules are aligned by applying a voltage, and polymerizing the polymerizable compound. This is done by fixing the orientation of the liquid crystal molecules. Therefore, for the PSA type liquid crystal display element, the pretilt angle is an important configuration that controls the alignment direction of liquid crystal molecules or is related to the response speed. Therefore, in the step of polymerizing the polymerizable compound in the liquid crystal composition used, The step of forming the pretilt angle of the polymerizable compound is very important.
  • the pretilt angle formed by the polymerizable compound is formed with a short ultraviolet irradiation time or low integrated irradiation energy, so that the ultraviolet irradiation time in the manufacturing process can be shortened.
  • it takes a long time to form the pretilt angle of the polymerizable compound more ultraviolet irradiation is required, so that a long ultraviolet irradiation time and low integrated irradiation energy are required.
  • the production apparatus is increased in size and the production efficiency is lowered, and the liquid crystal composition is deteriorated by the ultraviolet rays. Therefore, development of a liquid crystal composition containing a polymerizable compound having a large amount of change in pretilt angle after ultraviolet irradiation is desired.
  • the amount of change in the pretilt angle after ultraviolet irradiation is large means that when a liquid crystal composition containing a polymerizable compound is irradiated with ultraviolet rays for a unit time, the pretilt angle before ultraviolet irradiation and the pretilt angle after ultraviolet irradiation are set. It means that there is a big difference. Therefore, if the amount of change in the pretilt angle after ultraviolet irradiation is large, a sufficient pretilt angle can be formed even in a short ultraviolet irradiation time.
  • a display element is configured using a polymerizable compound having a terphenyl structure as a ring structure
  • a display element is configured using a polymerizable compound having an acetylene structure. Is disclosed.
  • ultraviolet rays can be obtained by using the following compound (A) having a terphenyl skeleton or compound (B) having an acetylene structure. Attempts have been made to improve the polymerization rate of the polymerizable compound during irradiation. However, in the display element using the compound (A) or the compound (B) as the polymerizable compound, although the residual amount of the polymerizable compound is sufficiently small, the polymerization rate is relatively fast, but the amount of change in the pretilt angle after the ultraviolet irradiation. was small, and it took time to form the pretilt angle.
  • the problem to be solved by the present invention is to manufacture a PSA type or PSVA type liquid crystal display element that can form a sufficient pretilt angle in a short time and has excellent reliability since the amount of change in pretilt angle after ultraviolet irradiation is large.
  • An object of the present invention is to provide a liquid crystal composition containing a polymerizable compound and to provide a liquid crystal display device using the same.
  • the present invention includes a liquid crystal compound selected from the group consisting of compounds represented by formula (N-1), which contains one or more polymerizable compounds represented by formula (I), and Provided is a liquid crystal composition containing at least one liquid crystal compound selected from the group consisting of compounds represented by formula (J), and also provides a liquid crystal display device using the same.
  • the liquid crystal composition of the present invention exhibits a small rotational viscosity ( ⁇ 1) without lowering the refractive index anisotropy ( ⁇ n) and the nematic phase-isotropic liquid phase transition temperature (Tni), and the pretilt angle after ultraviolet irradiation. Since the amount of change is large, the liquid crystal composition forms a sufficient pretilt angle and does not precipitate a polymerizable compound.
  • the liquid crystal display element using the liquid crystal composition of the present invention has a large amount of change in pretilt angle and a sufficient pretilt angle can be formed by short-time ultraviolet irradiation, display defects such as alignment failure and image sticking are not suppressed or suppressed.
  • the display quality is excellent and the ultraviolet irradiation time in the manufacturing process can be shortened.
  • the liquid crystal composition of the present invention can form a pretilt angle in a short time, the liquid crystal composition can suppress deterioration due to ultraviolet rays.
  • the liquid crystal composition of the present invention adjusts the content of the polymerizable compound or adjusts the combination of the polymerizable compounds and the combination of components other than the polymerizable compound (for example, other liquid crystal compounds) when a plurality of polymerizable compounds are included.
  • the pretilt angle and the residual amount of the polymerizable compound can be controlled, and the production efficiency can be easily improved by shortening the ultraviolet irradiation time for production. Therefore, a liquid crystal display device using the liquid crystal composition of the present invention is very useful.
  • the first aspect of the present invention is a first aspect of the present invention.
  • X 1 to X 12 are each independently a hydrogen atom, alkyl group, alkoxy group, trifluoromethyl group, trifluoromethoxy group, chlorine atom, fluorine atom, or —S 1 —R. 1 and at least one of X 1 to X 12 is substituted with an alkoxy group having 1 to 15 carbon atoms, R 1 , R 2 and R 3 are each independently selected from formulas (R-1) to (R-15)
  • one or more polymerizable compounds represented by A liquid crystal composition comprising one or more selected from the group consisting of a compound represented by the following general formula (N-1) and a compound represented by the following general formula (J).
  • R N11 and R N12 each independently represents an alkyl group having 1 to 8 carbon atoms, and one or non-adjacent two or more —CH in the alkyl group. 2 — may be each independently substituted by —CH ⁇ CH—, —C ⁇ C—, —O—, —CO—, —COO— or —OCO—,
  • (C) represents a group selected from the group consisting of 1,4-cyclohexenylene groups, and the groups (a), (b) and (c) are each independently a cyano group, a fluorine atom or a chlorine atom.
  • J General formula (J)
  • R J1 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 —CH 2.
  • ⁇ CH—, —C ⁇ C—, —O—, —CO—, —COO— or —OCO— may be substituted
  • X J1 represents a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a fluoromethoxy group, a difluoromethoxy group, a trifluoromethoxy group or a 2,2,2-trifluoroethyl group
  • a J1 , A J2 and A J3 are each independently (A) 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-.)
  • B 1,4-phenylene group (one —
  • Z J1 and Z J2 are each independently a single bond, —CH 2 CH 2 —, — (CH 2 ) 4 —, —OCH 2 —, —CH 2 O—, —OCF 2 —, —CF 2 O—, Represents —COO—, —OCO— or —C ⁇ C—, n J1 represents 0, 1, 2, 3 or 4; When n J1 is 2, 3 or 4 and a plurality of A J2 are present, they may be the same or different, and n J1 is 2, 3 or 4 and a plurality of Z J1 is present. In some cases, they may be the same or different. )
  • the liquid crystal composition of the present invention contains one or more polymerizable compounds represented by the above general formula (I).
  • the liquid crystal composition containing the polymerizable compound represented by the general formula (I) has a large amount of change in the pretilt angle, the target pretilt angle can be imparted in a short ultraviolet irradiation time. Furthermore, when the polymerization rate is moderately fast, the residual amount of the polymerizable compound can be reduced. Therefore, it is possible to improve the production efficiency of manufacturing the PSA type liquid crystal display element. In addition, there is an effect that display defects (for example, defects such as burn-in) due to changes in the pretilt angle do not occur or are extremely small.
  • the display failure in this specification takes into account display failure due to the pretilt angle changing over time, display failure due to the residual amount of unreacted polymerizable compound, and display failure due to a decrease in voltage holding ratio. Yes. Note that a small amount of the remaining polymerizable compound (high polymerization rate) and a large amount of change in the pretilt angle are not synonymous.
  • R 2 to R 3 are each independently selected from formulas (R-1) to (R-15).
  • the 15 polymerizable functional groups represented by the above formulas (R-1) to (R-15) are preferably cured by radical polymerization, radical addition polymerization, cationic polymerization or anionic polymerization.
  • the formula (R-1), formula (R-2), formula (R-4), formula (R-5), formula (R-7), formula (R -11), formula (R-13) or formula (R-15) are preferred, and formula (R-1), formula (R-2), formula (R-7), formula (R-11) or formula (R-11) R-13) is more preferred, and formula (R-1) or formula (R-2) is more preferred.
  • S 2 to S 3 each independently represents a single bond or an alkylene group having 1 to 15 carbon atoms, and one or more —CH 2 — in the alkylene group is Further, it may be substituted with —O—, —OCO— or —COO— so that the oxygen atom is not directly adjacent.
  • S 2 to S 3 are each independently preferably a single bond or an alkylene group having 1 to 6 carbon atoms, more preferably an alkylene group having 1 to 3 carbon atoms, and an alkylene having 1 to 2 carbon atoms. And more preferably an alkylene group having 1 carbon atom.
  • S 2 or S 3 Since at least one of S 2 or S 3 is an alkylene group having 1 carbon atom, it exhibits large pretilt formation and high solubility.
  • Conditions preferred S 2, S 3, one of S 2, S 3 is an alkylene group having 1 carbon atoms and the other is an alkylene group having 1 to 5 carbon atoms, more preferably S 2, S 3 the conditions are one alkylene group of 1 carbon atoms of S 2, S 3, and the other is an alkylene group having 1 to 3 carbon atoms, particularly preferred conditions S 2, S 3 and S 2 And S 3 are both alkylene groups having 1 carbon atom.
  • terphenyl skeleton capable of efficiently absorbing light when irradiated with ultraviolet rays in the polymerization step
  • This is effective from the viewpoint of showing a large amount of change in pretilt angle.
  • a large amount of change in the pretilt angle after ultraviolet irradiation means that a sufficient pretilt angle can be formed even with a short ultraviolet irradiation time.
  • At least one of S 2 and S 3 is preferably an alkylene group having 1 to 6 carbon atoms, and is an alkylene group having 1 to 3 carbon atoms.
  • an alkylene group having 1 to 2 carbon atoms is more preferable, and an alkylene group having 1 carbon atom is more preferable.
  • One or more —CH 2 — in the alkylene group may be substituted with —O—, —OCO— or —COO— so that the oxygen atom is not directly adjacent.
  • X 1 to X 12 each independently represents a hydrogen atom, an alkyl group, an alkoxy group, a trifluoromethyl group, a trifluoromethoxy group, a chlorine atom, a fluorine atom or —S 1 —R 1 .
  • an alkoxyl group or a fluorine atom is preferred, and an alkoxyl group is more preferred, but any one of X 1 to X 12 is substituted with an alkoxy group having 1 to 15 carbon atoms.
  • R1 is defined by the formula (R-1) to the formula (R-15)
  • the 15 polymerizable functional groups represented by the above formulas (R-1) to (R-15) are preferably cured by radical polymerization, radical addition polymerization, cationic polymerization or anionic polymerization.
  • the formula (R-1), formula (R-2), formula (R-4), formula (R-5), formula (R-7), formula (R -11), formula (R-13) or formula (R-15) are preferred, and formula (R-1), formula (R-2), formula (R-7), formula (R-11) or formula (R-11) R-13) is more preferred, and formula (R-1) or formula (R-2) is more preferred.
  • S 1 represents an alkylene group having 1 to 15 carbon atoms, and one or two or more —CH 2 — in the alkylene group is not directly adjacent to each other. , —O—, —OCO— or —COO— may be substituted.
  • S 1 is preferably a single bond or an alkylene group having 1 to 6 carbon atoms, more preferably an alkylene group having 1 to 3 carbon atoms, and still more preferably an alkylene group having 1 to 2 carbon atoms. And more preferably an alkylene group having 1 carbon atom.
  • an alkylene group is preferable from the viewpoint of tilt stability.
  • At least one of X 1 to X 12 is substituted with an alkoxy group having 1 to 15 carbon atoms.
  • At least one of X 1 to X 12 is preferably substituted with an alkoxy group having 1 to 10 carbon atoms, more preferably substituted with an alkoxy group having 1 to 8 carbon atoms, It is more preferably substituted with an alkoxy group having 1 to 5 atoms, more preferably substituted with an alkoxy group having 1 to 3 carbon atoms, and substituted with an alkoxy group having 1 carbon atom. It is particularly preferred.
  • the pretilt angle is formed quickly and image sticking that causes display defects is less likely to occur. It is preferable from the viewpoint.
  • X 1 to X 12 are preferably substituted with an alkoxy group, more preferably one or more and four or less are substituted with an alkoxy group, and one or more and two or less are substituted with an alkoxy group. It is more preferred that one is substituted with an alkoxy group.
  • X 1 to X 12 if one or more of X 1 to X 12 is substituted with an alkoxy group, the pretilt angle is largely formed, and the image sticking that causes display failure does not occur. It is preferable from the viewpoint.
  • the position to be substituted, among the X 1 of X 12, X 1, X 2 , X 3, X 4, X 5, is preferably X 6, X 1, X 2 , X 5, X 6 It is more preferable that
  • Examples of the compound represented by the general formula (I) according to the present invention include the following formulas (I-1) to (I-24).
  • a polymerizable compound containing a skeleton represented by the general formula (I-5), the general formula (I-6), the general formula (I-7), or the general formula (I-8) has a phase with a liquid crystal composition.
  • monomer reactivity is fast, a stable pretilt is obtained, and VHR after pretilt formation is good, which is more preferable.
  • the polymerizable compound represented by the general formula (I) is 0.01 to 5% by mass based on the total amount of the liquid crystal composition of the present invention. When there is no notice,% intends the mass%.) It contains, but the lower limit of the content is preferably 0.05%, preferably 0.1%, preferably 0.15%, 0.2% Preferably, 0.25% is preferable, and the upper limit of the content of the polymerizable compound represented by the general formula (I-1) is preferably 4.5% with respect to the total amount of the liquid crystal composition of the present invention, preferably 4% Is preferred, 3.5% preferred, 3% preferred, 2.5% preferred, 2% preferred, 1.5% preferred, 1% preferred, 0.95% preferred, 0.9% Is preferred, 0.85% is preferred, 0.8% is preferred, 0.75% is preferred, 0.7% It is preferred, preferably 0.65%, preferably 0.6%, preferably 0.55%.
  • the content thereof is 0.2 to 0.6% by mass relative to the total amount of the composition of the present invention.
  • the content is preferably 0.01 to 0.5% by mass.
  • each content is 0.01 to 0.4 mass%. Therefore, in order to solve all these problems, it is particularly desirable to adjust the polymerizable compound represented by the general formula (I) in the range of 0.1 to 0.5% by mass.
  • composition of the present invention preferably contains at least one liquid crystal compound selected from the group consisting of compounds represented by formula (N-1). These compounds correspond to dielectrically negative compounds (the sign of ⁇ is negative and the absolute value is greater than 2).
  • (C) represents a group selected from the group consisting of 1,4-cyclohexenylene groups, and the groups (a), (b) and (c) are each independently a cyano group, a fluorine atom or a chlorine atom.
  • the composition of the present invention preferably contains at least one liquid crystal compound selected from the group consisting of compounds represented by formula (J). These compounds correspond to dielectrically positive compounds (the sign of ⁇ is positive and the absolute value is greater than 2).
  • R J1 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 —CH ⁇ Optionally substituted by CH—, —C ⁇ C—, —O—, —CO—, —COO— or —OCO—, n J1 represents 0, 1, 2, 3 or 4;
  • a J1 , A J2 and A J3 are each independently (A) 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-.)
  • B) a 1,4-phenylene group one —CH ⁇ present in the group or two or more non-adjacent —CH ⁇ may be replaced by —N ⁇
  • the group (a), the group (b) and the group (c) are each independently selected from the group consisting of cyano group, fluorine atom, chlorine atom, methyl group, trifluoromethyl group or trifluoro May be substituted with a methoxy group
  • Z J1 and Z J2 are each independently a single bond, —CH 2 CH 2 —, — (CH 2 ) 4 —, —OCH 2 —, —CH 2 O—, —OCF 2 —, —CF 2 O—, Represents —COO—, —OCO— or —C ⁇ C—
  • n J1 is 2, 3 or 4 and a plurality of A J2 are present, they may be the same or different, and n J1 is 2, 3 or 4 and a plurality of Z J1 is present.
  • X J1 represents a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a fluoromethoxy group, a difluoromethoxy group, a trifluoromethoxy group or a 2,2,2-trifluoroethyl group.
  • the liquid crystal composition of the present invention preferably contains at least one liquid crystal compound selected from the group consisting of a compound represented by formula (N-1) and a compound represented by formula (J). .
  • the liquid crystal composition of the present invention contains at least one liquid crystal compound selected from the group consisting of compounds represented by formula (N-1), or a compound represented by formula (J) It is preferable to contain at least one liquid crystal compound selected from the group consisting of: and at least one liquid crystal compound selected from the group consisting of compounds represented by formula (N-1). More preferred.
  • liquid crystal compositions are classified as negative or positive in dielectric anisotropy.
  • the compound represented by the general formula (N-1) in the composition according to the present invention is related to the kind of the compound represented by the general formula (N-1) contained in the composition.
  • the content of the compound represented by the general formula (J) is large, or the content of the compound represented by the general formula (N-1) is small or contained. If not, it shows positive dielectric anisotropy.
  • the liquid crystal composition of the present invention preferably contains one or more compounds represented by the general formula (L).
  • the compound represented by the general formula (L) corresponds to a dielectrically neutral compound ( ⁇ value is ⁇ 2 to 2).
  • R L1 and R L2 each independently 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—, n L1 represents 0, 1, 2 or 3,
  • a L1 , A L2 and A L3 each independently represent (a) a 1,4-cyclohexylene group (one —CH 2 — present in the group or two or more —CH 2 — not adjacent to each other).
  • Liquid crystal compounds with negative ⁇ The compound represented by the general formula (N-1) according to the present invention is preferably a compound having a negative ⁇ and an absolute value larger than 2.
  • R N11 and R N12 each independently represent an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or An alkenyloxy group having 2 to 8 carbon atoms is preferable, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkyl group having 2 to 5 carbon atoms.
  • alkenyloxy group is preferred, an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms is more preferred, and an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 3 carbon atoms is further preferred.
  • An alkenyl group having 3 carbon atoms (propenyl group) is particularly preferable.
  • the ring structure to which it is bonded is a phenyl group (aromatic)
  • An alkenyl group having 4 to 5 atoms is preferable
  • the ring structure to which the alkenyl group is bonded is a saturated ring structure such as cyclohexane, pyran and dioxane
  • 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 total of carbon atoms and oxygen atoms, if present is preferably 5 or less, and is preferably linear.
  • the alkenyl group is preferably selected from groups represented by any of the formulas (R1) to (R5). (The black dots in each formula represent carbon atoms in the ring structure.)
  • a N11 and A N12 are preferably aromatic when it is required to independently increase ⁇ n, and are preferably aliphatic for improving the response speed, and trans-1,4 -Cyclohexylene group, 1,4-phenylene group, 2-fluoro-1,4-phenylene group, 3-fluoro-1,4-phenylene group, 3,5-difluoro-1,4-phenylene group, 2, 3-difluoro-1,4-phenylene group, 1,4-cyclohexenylene group, 1,4-bicyclo [2.2.2] octylene group, piperidine-1,4-diyl group, naphthalene-2,6- It preferably represents a diyl group, decahydronaphthalene-2,6-diyl group or 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, and more preferably represents the following structure:
  • it represents a trans-1,4-cyclohexylene group, a 1,4-cyclohexenylene group or a 1,4-phenylene group.
  • Z N11 and Z N12 are each independently -CH 2 O -, - CF 2 O -, - CH 2 CH 2 -, - CF 2 CF 2 - or preferably a single bond, -CH 2 O-, —CH 2 CH 2 — or a single bond is more preferable, —CH 2 O— or a single bond is particularly preferable.
  • n N11 + n N12 is preferably 1 or 2, a combination in which n N11 is 1 and n N12 is 0, a combination in which n N11 is 2 and n N12 is 0, n N11 is 1 and n N12 is 1 Certain combinations are preferred, where n N11 is 2 and n N12 is 1.
  • the lower limit of the preferable content of the compound represented by the formula (N-1) with respect to the total amount of the composition of the present invention is 1%, 10%, 20%, 30% , 40%, 50%, 55%, 60%, 65%, 70%, 75%, and 80%.
  • the upper limit of the preferred content is 95%, 85%, 75%, 65%, 55%, 45%, 35%, 25%, 20% It is.
  • the above lower limit value is preferably low and the upper limit value is preferably low. Furthermore, when the composition of the present invention keeps Tni high and a composition having good temperature stability is required, the above lower limit value is preferably low and the upper limit value is preferably low. When it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the above lower limit value is increased and the upper limit value is high.
  • Examples of the compound represented by the general formula (N-1) according to the present invention include compounds represented by the following general formulas (N-1a) to (N-1g).
  • R N11 and R N12 represent the same meaning as R N11 and R N12 in formula (N-1), n Na11 represents 0 or 1, n Nb11 represents 1 or 2, and n Nc11 represents Represents 0 or 1, n Nd11 represents 1 or 2, n Ne11 represents 1 or 2, n Nf11 represents 1 or 2, n Ng11 represents 1 or 2, A Ne11 represents trans-1,4 -Represents a cyclohexylene group or a 1,4-phenylene group, and A Ng11 represents a trans-1,4-cyclohexylene group, a 1,4-cyclohexenylene group or a 1,4-phenylene group, but at least one Represents a 1,4-cyclohexenylene group, and Z Ne 11 represents a single bond or ethylene, but at least one represents ethylene.
  • the compound represented by the general formula (N-1) is a compound selected from the group of compounds represented by the general formulas (N-1-1) to
  • the compound represented by the general formula (N-1-1) is the following compound.
  • R N111 and R N112 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • R N111 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, preferably a propyl group, a pentyl group or a vinyl group.
  • RN112 is preferably 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, and preferably an ethoxy group or a butoxy group.
  • the compound represented by the general formula (N-1-1) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-1) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% 17%, 20%, 23%, 25%, 27%, 30%, 33%, 35%.
  • the upper limit of the preferable content is 50%, 40%, 38%, 35%, 33%, 30%, and 28% with respect to the total amount of the composition of the present invention. %, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6% %, 5%, 3%.
  • the compound represented by the general formula (N-1-1) is a compound selected from the group of compounds represented by the formula (N-1-1.1) to the formula (N-1-1.22).
  • it is a compound represented by the formulas (N-1-1.1) to (N-1-1.4), and the formula (N-1-1.1) and the formula (N
  • the compound represented by -1-1.3) is preferable.
  • the compounds represented by formulas (N-1-1.1) to (N-1-1.22) can be used alone or in combination.
  • the lower limit of the preferred content of these compounds alone or with respect to the total amount is 5%, 10%, 13%, 15%, 17%, 20%, 23% 25% 27% 30% 33% 35%
  • the upper limit of the preferable content is 50%, 40%, 38%, 35%, 33%, 30%, and 28% with respect to the total amount of the composition of the present invention. %, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6% %, 5%, 3%.
  • the compound represented by the general formula (N-1-2) is the following compound.
  • R N121 and R N122 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • RN121 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group, a butyl group or a pentyl group.
  • RN122 is preferably 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, and includes a methyl group, a propyl group, a methoxy group, an ethoxy group, or a propoxy group. preferable.
  • the compound represented by the general formula (N-1-2) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-2) with respect to the total amount of the composition of the present invention is 5%, 7%, 10%, %, 15%, 17%, 20%, 23%, 25%, 27%, 30%, 33%, 35%, 37 %, 40%, and 42%.
  • the upper limit of the preferable content is 50%, 48%, 45%, 43%, 40%, 38%, and 35% with respect to the total amount of the composition of the present invention. %, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% %, 8%, 7%, 6%, 5%.
  • the compound represented by the general formula (N-1-2) is a compound selected from the group of compounds represented by the formula (N-1-2.1) to the formula (N-1-2.22). It is preferable that the formula (N-1-2.3) to the formula (N-1-2.7), the formula (N-1-2.10), the formula (N-1-2.11), the formula A compound represented by formula (N-1-2.13) and formula (N-1-2.20) is preferred.
  • formula (N-1-2.3) is preferably a compound represented by the formula (N-1-2.7) from when emphasizing improvements in T NI formula (N-1-2.10), formula (N-1-2.11) And a compound represented by the formula (N-1-2.13), and when emphasizing improvement in response speed, the compound represented by the formula (N-1-2.20) Is preferred.
  • the compounds represented by formula (N-1-2.1) to formula (N-1-2.22) can be used alone or in combination.
  • the lower limit of the preferable content of these compounds alone or with respect to the total amount of is 5%, 10%, 13%, 15%, 17%, 20%, 23 %, 25%, 27%, 30%, 33%, and 35%.
  • the upper limit of the preferable content is 50%, 40%, 38%, 35%, 33%, 30%, and 28% with respect to the total amount of the composition of the present invention. %, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6% %, 5%, 3%.
  • the compound represented by the general formula (N-1-3) is the following compound.
  • R N131 and R N132 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • R N131 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • R N132 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 3 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and preferably a 1-propenyl group, an ethoxy group, a propoxy group or a butoxy group. .
  • the compound represented by the general formula (N-1-3) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-3) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-3) is a compound selected from the group of compounds represented by the formula (N-1-3.1) to the formula (N-1-3.21). It is preferably a compound represented by the formulas (N-1-3.1) to (N-1-3.7) and the formula (N-1-3.21). -1-3.1), formula (N-1-3.2), formula (N-1-3.3), formula (N-1-3.4) and formula (N-1-3.6) ) Is preferred.
  • the compound represented by the general formula (N-1-4) is the following compound.
  • R N141 and R N142 each independently represents the same meaning as R N11 and R N12 in the general formula (N).
  • R N141 and R N142 are each independently an alkyl group having 1 to 5 carbon atoms, an alkenyl group or an alkoxy group having 1 to 4 carbon atoms carbon atoms 4-5 preferably a methyl group, a propyl group, an ethoxy Group or butoxy group is preferred.
  • the compound represented by the general formula (N-1-4) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-4) with respect to the total amount of the composition of the present invention is 3%, 5%, 7%, 10% %, 13%, 15%, 17%, and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, 13%, 11%, 10%, and 8%.
  • the compound represented by the general formula (N-1-4) is a compound selected from the group of compounds represented by the formula (N-1-4.1) to the formula (N-1-4.14).
  • it is a compound represented by the formulas (N-1-4.1) to (N-1-4.4), and the formula (N-1-4.1) and the formula (N -1-4.2) and compounds represented by formula (N-1-4.4) are preferred.
  • the compounds represented by the formulas (N-1-4.1) to (N-1-4.14) can be used alone or in combination, but the compounds of the present invention
  • the lower limit of the preferable content of these compounds alone or with respect to the total amount is 3%, 5%, 7%, 10%, 13%, 15%, 17% And 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, 13%, 11%, 10%, and 8%.
  • the compound represented by the general formula (N-1-5) is the following compound.
  • R N151 and R N152 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • R N151 and R N152 are each independently 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, and preferably an ethyl group, a propyl group, or a butyl group. Is preferred.
  • the compound represented by the general formula (N-1-5) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-5) with respect to the total amount of the composition of the present invention is 5%, 8%, 10%, 13 %, 15%, 17%, and 20%.
  • the upper limit of the preferable content is 35%, 33%, 30%, 28%, 25%, 23%, and 20% with respect to the total amount of the composition of the present invention. %, 18%, 15% and 13%.
  • the compound represented by the general formula (N-1-5) is a compound selected from the group of compounds represented by the formula (N-1-5.1) to the formula (N-1-5.6). It is preferable that the compound represented by formula (N-1-5.1), formula (N-1-5.2) and formula (N-1-5.4) is preferable.
  • the compounds represented by formula (N-1-5.1), formula (N-1-5.2) and formula (N-1-5.4) may be used alone or in combination.
  • the lower limit of the preferred content of these compounds alone or with respect to the total amount of the composition of the present invention is 5%, 8%, 10%, 13%, 15%, 17% and 20%.
  • the upper limit of the preferable content is 35%, 33%, 30%, 28%, 25%, 23%, and 20% with respect to the total amount of the composition of the present invention. %, 18%, 15% and 13%.
  • the compound represented by the general formula (N-1-10) is the following compound.
  • R N1101 and R N1102 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • R N1101 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group, a butyl group, a vinyl group or a 1-propenyl group.
  • R N1102 is preferably 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, and preferably an ethoxy group, a propoxy group, or a butoxy group.
  • the compound represented by the general formula (N-1-10) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-10) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-10) is a compound selected from the group of compounds represented by the formula (N-1-10.1) to the formula (N-1-10.21). It is preferable that they are represented by formulas (N-1-10.1) to (N-1-10.5), formula (N-1-10.20) and formula (N-1-10.21).
  • the compound is preferably a compound of formula (N-1-10.1), formula (N-1-10.2), formula (N-1-10.20) and formula (N-1-10.21). The compound represented by these is preferable.
  • the compounds represented by formula (N-1-10.1), formula (N-1-10.2), formula (N-1-10.20) and formula (N-1-10.21) are singly Can be used in combination or in combination, but the lower limit of the preferred content of these compounds alone or with respect to the total amount of the composition of the present invention is 5%, 10% 13%, 15%, 17%, 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-11) is the following compound.
  • R N1111 and R N1112 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • R N1111 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group, a butyl group, a vinyl group or a 1-propenyl group.
  • R N1112 is preferably 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, and preferably an ethoxy group, a propoxy group or a butoxy group.
  • the compound represented by the general formula (N-1-11) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferred content of the compound represented by formula (N-1-11) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-11) is a compound selected from the group of compounds represented by the formula (N-1-11.1) to the formula (N-1-11.15).
  • it is a compound represented by the formulas (N-1-11.1) to (N-1-11.15), and is preferably a compound represented by the formula (N-1-11.2) or the formula (N-- The compound represented by 1-11.4) is preferable.
  • the compounds represented by the formula (N-1-11.2) and the formula (N-1-11.4) can be used alone or in combination.
  • the lower limit of the preferable content of these compounds alone or with respect to the total amount is 5%, 10%, 13%, 15%, 17%, and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-12) is the following compound.
  • R N1121 and R N1122 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • RN1121 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • RN1122 is preferably 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, and preferably an ethoxy group, a propoxy group, or a butoxy group.
  • the compound represented by the general formula (N-1-12) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by formula (N-1-12) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-13) is the following compound.
  • R N1131 and R N1132 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • R N1131 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • R N1132 is preferably 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, and preferably an ethoxy group, a propoxy group, or a butoxy group.
  • the compound represented by the general formula (N-1-13) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-13) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-14) is the following compound.
  • R N1141 and R N1142 each independently represent the same meaning as R N11 and R N12 in formula (N).
  • R N1141 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • R N1142 is preferably 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, and preferably an ethoxy group, a propoxy group, or a butoxy group.
  • the compound represented by the general formula (N-1-14) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-14) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-15) is the following compound.
  • R N1151 and R N1152 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • RN1151 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • R N1152 is preferably 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, and preferably an ethoxy group, a propoxy group, or a butoxy group.
  • the compound represented by the general formula (N-1-15) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-15) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-16) is the following compound.
  • R N1161 and R N1162 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • R N1161 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • R N1162 is preferably 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, and preferably an ethoxy group, a propoxy group, or a butoxy group.
  • the compound represented by the general formula (N-1-16) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-16) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-17) is the following compound.
  • R N1171 and R N1172 each independently represent the same meaning as R N11 and R N12 in General Formula (N)).
  • RN1171 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • R N1172 is preferably 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, and preferably an ethoxy group, a propoxy group, or a butoxy group.
  • the compound represented by the general formula (N-1-17) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-17) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-18) is the following compound.
  • R N1181 and R N1182 each independently represent the same meaning as R N11 and R N12 in General Formula (N)).
  • RN1181 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, preferably a methyl group, an ethyl group, a propyl group or a butyl group.
  • R N1182 is preferably 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, and preferably an ethoxy group, a propoxy group, or a butoxy group.
  • the compound represented by the general formula (N-1-18) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferred content of the compound represented by formula (N-1-18) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-18) is a compound selected from the group of compounds represented by the formula (N-18.1) to the formula (N-1-18.5).
  • it is a compound represented by the formulas (N-18.1. 1) to (N-1-11.3), and is preferably a compound represented by the formula (N-1-18.2) or the formula (N- The compound represented by 1-18.3) is preferred.
  • the compound represented by the general formula (N-1-20) is the following compound.
  • R N1201 and R N1202 each independently represent the same meaning as R N11 and R N12 in formula (N)).
  • R N1201 and R N1202 are each independently preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • the compound represented by the general formula (N-1-20) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-20) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-21) is the following compound.
  • R N1211 and R N1212 each independently represent the same meaning as R N11 and R N12 in General Formula (N).
  • R N1211 and R N1212 are each independently preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • the compound represented by the general formula (N-1-21) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-21) with respect to the total amount of the composition of the present invention is 5%, 10%, 13%, 15% %, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, and 13%.
  • the compound represented by the general formula (N-1-22) is the following compound.
  • R N1221 and R N1222 each independently represent the same meaning as R N11 and R N12 in General Formula (N)).
  • R N1221 and R N1222 are each independently preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group, or a butyl group.
  • the compound represented by the general formula (N-1-22) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (N-1-22) with respect to the total amount of the composition of the present invention is 1%, 5%, 10%, 13 %, 15%, 17% and 20%.
  • the upper limit of the preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of the present invention. %, 15%, 13%, 10%, 5%.
  • the compound represented by the general formula (N-1-22) is a compound selected from the group of compounds represented by the formula (N-1-22.1) to the formula (N-1-22.12).
  • it is a compound represented by formulas (N-1-22.1) to (N-1-22.5), and preferably represented by formulas (N-1-22.1) to (N- The compound represented by 1-22.4) is preferred.
  • the liquid crystal composition of the present invention does not contain many liquid crystal compounds selected from the group consisting of compounds represented by general formula (J), but only from the group consisting of compounds represented by general formula (N-1).
  • the above general formula (N-1-2), general formula (N-1-3), general formula (N-1-5), general formula (N-1- 11), general formula (N-1-13), general formula (N-1-15), general formula (N-1-16), general formula (N-1-17), general formula (N-1- 18) the liquid crystal compound having three ring structures in the compound, selected from the general formula (N-1-20) and the general formula (N-1-22), as an essential component.
  • the obtained liquid crystal display device has a high voltage maintaining property.
  • the rate (VHR) Preferably possible to the rate (VHR).
  • the general formula (N-1-2) to the general formula (N-1-22) the general formula (N-1-2), the general formula (N-1-3), General formula (N-1-5), general formula (N-1-11), general formula (N-1-13), general formula (N-1-18), and general formula (N-1-22)
  • a liquid crystal compound selected from the group consisting of general formula (N-1-2), general formula (N-1-3), general formula (N-1-5), general formula (N N-1-11) and a liquid crystal compound selected from general formula (N-1-18) are more preferably contained as essential components.
  • “Liquid crystal compounds with negative ⁇ ” the liquid crystal compound having a positive dielectric constant represented by the general formula (J) according to the present invention will be described.
  • R J1 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 —CH ⁇ Optionally substituted by CH—, —C ⁇ C—, —O—, —CO—, —COO— or —OCO—, n J1 represents 0, 1, 2, 3 or 4;
  • a J1 , A J2 and A J3 are each independently (A) 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-.)
  • B) a 1,4-phenylene group one —CH ⁇ present in the group or two or more non-adjacent —CH ⁇ may be replaced by —N ⁇
  • the group (a), the group (b) and the group (c) are each independently selected from the group consisting of cyano group, fluorine atom, chlorine atom, methyl group, trifluoromethyl group or trifluoro May be substituted with a methoxy group
  • Z J1 and Z J2 are each independently a single bond, —CH 2 CH 2 —, — (CH 2 ) 4 —, —OCH 2 —, —CH 2 O—, —OCF 2 —, —CF 2 O—, Represents —COO—, —OCO— or —C ⁇ C—
  • n J1 is 2, 3 or 4 and a plurality of A J2 are present, they may be the same or different, and n J1 is 2, 3 or 4 and a plurality of Z J1 is present.
  • X J1 represents a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a fluoromethoxy group, a difluoromethoxy group, a trifluoromethoxy group or a 2,2,2-trifluoroethyl group.
  • R J1 represents an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or alkenyloxy having 2 to 8 carbon atoms.
  • a group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkenyloxy group having 2 to 5 carbon atoms is preferable.
  • An alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms is more preferable, an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 3 carbon atoms is more preferable, and an alkenyl group having 3 carbon atoms. (Propenyl group) is particularly preferred.
  • R J1 is preferably an alkyl group when emphasizing reliability, and is preferably an alkenyl group when emphasizing a decrease in viscosity.
  • the ring structure to which it is bonded is a phenyl group (aromatic)
  • An alkenyl group having 4 to 5 atoms is preferable
  • the ring structure to which the alkenyl group is bonded is a saturated ring structure such as cyclohexane, pyran and dioxane
  • 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 total of carbon atoms and oxygen atoms, if present is preferably 5 or less, and is preferably linear.
  • the alkenyl group is preferably selected from groups represented by any of the formulas (R1) to (R5). (The black dot in each formula represents the carbon atom in the ring structure to which the alkenyl group is bonded.)
  • a J1 , A J2 and A J3 are preferably aromatic when it is required to independently increase ⁇ n, and are preferably aliphatic to improve the response speed.
  • Z J1 and Z J2 each independently preferably represent —CH 2 O—, —OCH 2 —, —CF 2 O—, —CH 2 CH 2 —, —CF 2 CF 2 — or a single bond, OCH 2 —, —CF 2 O—, —CH 2 CH 2 — or a single bond is more preferred, and —OCH 2 —, —CF 2 O— or a single bond is particularly preferred.
  • X J1 is preferably a fluorine atom or a trifluoromethoxy group, and more preferably a fluorine atom.
  • n J1 is preferably 0, 1, 2 or 3, preferably 0, 1 or 2, preferably 0 or 1 when emphasizing the improvement of ⁇ , and preferably 1 or 2 when emphasizing Tni .
  • the types of compounds that can be combined are used in combination according to desired properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • desired properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (J) is low temperature solubility, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, image sticking, It is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the lower limit of the preferable content of the compound represented by the general formula (J) with respect to the total amount of the composition of the present invention is 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, 80%.
  • the upper limit of the preferable content is, for example, 95%, 85%, 75%, 65%, and 55% with respect to the total amount of the composition of the present invention. Yes, 45%, 35%, 25%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 J1 is preferably an alkyl group when emphasizing reliability, and is preferably an alkenyl group when emphasizing a decrease in viscosity.
  • composition of the present invention preferably contains one or more compounds represented by the general formula (M). These compounds correspond to dielectrically positive compounds ( ⁇ is greater than 2).
  • 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 —CH ⁇ CH—, — Optionally substituted by C ⁇ C—, —O—, —CO—, —COO— or —OCO—, n M1 represents 0, 1, 2, 3 or 4;
  • a M1 and A M2 are each independently (A) 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 (b) a 1,4-phenylene group (one —CH ⁇ present in this group or two or more non-adjacent —CH ⁇ may be replaced by —N ⁇ ).
  • a hydrogen atom on the group (a) and the group (b) may be independently substituted with a cyano group, a fluorine atom or a chlorine atom
  • Z M1 and Z M2 are each independently a single bond, —CH 2 CH 2 —, — (CH 2 ) 4 —, —OCH 2 —, —CH 2 O—, —OCF 2 —, —CF 2 O—, Represents —COO—, —OCO— or —C ⁇ C—
  • n M1 is 2, 3 or 4 and a plurality of A M2 are present, they may be the same or different, and n M1 is 2, 3 or 4 and a plurality of Z M1 is present
  • X M1 and X M3 each independently represent a hydrogen atom, a chlorine atom or a fluorine atom
  • X M2 represents a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group
  • R M1 represents an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an alkenyloxy having 2 to 8 carbon atoms.
  • a group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkenyloxy group having 2 to 5 carbon atoms is preferable.
  • An alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms is more preferable, an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 3 carbon atoms is more preferable, and an alkenyl group having 3 carbon atoms. (Propenyl group) is particularly preferred.
  • R M1 is preferably an alkyl group when emphasizing reliability, and is preferably an alkenyl group when emphasizing a decrease in viscosity.
  • the ring structure to which it is bonded is a phenyl group (aromatic)
  • An alkenyl group having 4 to 5 atoms is preferable
  • the ring structure to which the alkenyl group is bonded is a saturated ring structure such as cyclohexane, pyran and dioxane
  • 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 total of carbon atoms and oxygen atoms, if present is preferably 5 or less, and is preferably linear.
  • the alkenyl group is preferably selected from groups represented by any of the formulas (R1) to (R5). (The black dot in each formula represents the carbon atom in the ring structure to which the alkenyl group is bonded.)
  • a M1 and A M2 are preferably aromatic when it is required to independently increase ⁇ n, and are preferably aliphatic for improving the response speed, and trans-1,4 -Cyclohexylene group, 1,4-phenylene group, 2-fluoro-1,4-phenylene group, 3-fluoro-1,4-phenylene group, 3,5-difluoro-1,4-phenylene group, 2, 3-difluoro-1,4-phenylene group, 1,4-cyclohexenylene group, 1,4-bicyclo [2.2.2] octylene group, piperidine-1,4-diyl group, naphthalene-2,6- It preferably represents a diyl group, decahydronaphthalene-2,6-diyl group or 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, and more preferably represents the following structure:
  • Z M1 and Z M2 each independently -CH 2 O -, - CF 2 O -, - CH 2 CH 2 -, - CF 2 CF 2 - or preferably a single bond, -CF 2 O-, —CH 2 CH 2 — or a single bond is more preferable, and —CF 2 O— or a single bond is particularly preferable.
  • n M1 is preferably 0, 1, 2, or 3, preferably 0, 1 or 2, preferably 0 or 1 when emphasizing the improvement of ⁇ , and preferably 1 or 2 when emphasizing Tni .
  • the types of compounds that can be combined are used in combination according to desired properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • desired properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (M) is low-temperature solubility, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, image sticking, It is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the lower limit of the preferable content of the compound represented by the formula (M) with respect to the total amount of the composition of the present invention is 1%, 10%, 20%, 30%, 40% %, 50%, 55%, 60%, 65%, 70%, 75%, 80%.
  • the upper limit of the preferable content is, for example, 95%, 85%, 75%, 65%, and 55% with respect to the total amount of the composition of the present invention. Yes, 45%, 35%, 25%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 (M) is preferably, for example, a compound selected from the group of compounds represented by the general formula (M-1).
  • R M11 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 M11 to X M15 each independently represents hydrogen. represents an atom or a fluorine atom
  • Y M11 represents a fluorine atom or OCF 3.
  • the type of the compound used is, for example, one type as one embodiment of the present invention, two types, and three or more types.
  • the lower limit of the preferable content of the compound represented by the formula (M-1) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8% 10%, 13%, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 (M-1) is specifically preferably a compound represented by the formula (M-1.1) to the formula (M-1.4).
  • a compound represented by M-1.1) or formula (M-1.2) is preferred, and a compound represented by formula (M-1.2) is more preferred. It is also preferred to use the compounds represented by formula (M-1.1) or formula (M-1.2) at the same time.
  • the lower limit of the preferable content of the compound represented by the formula (M-1.1) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 6% It is.
  • the upper limit of the preferable content is 15%, 13%, 10%, 8%, and 5%.
  • the lower limit of the preferable content of the compound represented by the formula (M-1.2) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 6% It is.
  • the upper limit of the preferable content is 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8% It is.
  • the lower limit of the preferable total content of the compounds represented by the formulas (M-1.1) and (M-1.2) with respect to the total amount of the composition of the present invention is 1%, %, 5% and 6%.
  • the upper limit of the preferable content is 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8% It is.
  • the compound represented by the general formula (M) is preferably a compound selected from the group of compounds represented by the general formula (M-2), for example.
  • R M21 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 M21 and X M22 each independently represent hydrogen represents an atom or a fluorine atom
  • Y M21 represents a fluorine atom, a chlorine atom or OCF 3.
  • the lower limit of the preferable content of the compound represented by the formula (M-1) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8% 10%, 13%, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention is required to maintain a high Tni and hardly 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 (M-2) is preferably a compound represented by the formula (M-2.1) to the formula (M-2.5). 3) or / and a compound represented by the formula (M-2.5) is preferable.
  • the lower limit of the preferable content of the compound represented by the formula (M-2.2) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 6% It is.
  • the upper limit of the preferable content is 15%, 13%, 10%, 8%, and 5%.
  • the lower limit of the preferable content of the compound represented by the formula (M-2.3) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 6% It is.
  • the upper limit of the preferable content is 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8% It is.
  • the lower limit of the preferable content of the compound represented by the formula (M-2.5) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 6% It is.
  • the upper limit of the preferable content is 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8% It is.
  • Lower limit value of the preferable total content of the compounds represented by formulas (M-2.2), (M-2.3) and formula (M-2.5) with respect to the total amount of the composition of the present invention Is 1%, 2%, 5%, 6%.
  • the upper limit of the preferable content is 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8% It is.
  • the content is preferably 1% or more with respect to the total amount of the composition of the present invention, more preferably 5% or more, further preferably 8% or more, further preferably 10% or more, and more preferably 14% or more. 16% or more is particularly preferable.
  • the maximum ratio is preferably limited to 30% or less, more preferably 25% or less, more preferably 22% or less, and more preferably 20%. Less than is particularly preferred.
  • the compound represented by the general formula (M) used in the composition of the present invention is preferably a compound represented by the general formula (M-3).
  • R M31 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms
  • X M31 to X M36 are each independently hydrogen. represents an atom or a fluorine atom
  • Y M31 represents a fluorine atom, a chlorine atom or OCF 3.
  • the content of the compound represented by the general formula (M-3) is an upper limit and a lower limit for each embodiment in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. There is a value.
  • the lower limit of the preferable content of the compound represented by the formula (M-3) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% 8%, 10%, 13%, 15%, 18%, and 20%.
  • the upper limit of the preferable content is 20%, 18%, 15%, 13%, 10%, 8%, and 5%.
  • the compound represented by the general formula (M-3) used in the composition of the present invention is specifically represented by the formula (M-3.1) to the formula (M-3.4).
  • a compound is preferable, and among them, a compound represented by Formula (M-3.1) and / or Formula (M-3.2) is preferably contained.
  • the lower limit of the preferable content of the compound represented by the formula (M-3.1) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferable content is 20%, 18%, 15%, 13%, 10%, 8%, and 5%.
  • the lower limit of the preferable content of the compound represented by the formula (M-3.2) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferable content is 20%, 18%, 15%, 13%, 10%, 8%, and 5%.
  • the lower limit of the preferable total content of the compounds represented by the formulas (M-3.1) and (M-3.2) with respect to the total amount of the composition of the present invention is 1%, %, 4%, 5%, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferable content is 20%, 18%, 15%, 13%, 10%, 8%, and 5%.
  • the compound represented by the general formula (M) is preferably a compound selected from the group represented by the general formula (M-4).
  • R M41 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 M41 to X M48 are each independently fluorine.
  • Y M41 represents a fluorine atom, a chlorine atom or OCF 3.
  • the content of the compound represented by the general formula (M-4) is an upper limit and a lower limit for each embodiment in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. There is a value.
  • the lower limit of the preferred content of the compound represented by formula (M-4) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • 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 (M-4).
  • a liquid crystal display element having a low driving voltage 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 (M-4).
  • 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 (M-4).
  • a 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 (M-4).
  • the compound represented by the general formula (M-4) used in the composition of the present invention is specifically represented by the formula (M-4.1) to the formula (M-4.4).
  • it is a compound, and among them, it is preferable to contain a compound represented by the formula (M-4.2) to the formula (M-4.4), and a compound represented by the formula (M-4.2) It is more preferable to contain.
  • the compound represented by the general formula (M) is preferably a compound represented by the general formula (M-5).
  • R M51 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 M51 and X M52 are each independently hydrogen. represents an atom or a fluorine atom
  • Y M51 represents a fluorine atom, a chlorine atom or OCF 3.
  • the lower limit of the preferable content of the compound represented by formula (M-5) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8% Yes, 10%, 13%, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferable content is 50%, 45%, 40%, 35%, 33%, 30%, 28%, 25%, 23% 20%, 18%, 15%, 13%, 10%, 8%, 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention is required to maintain a high Tni and hardly 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 (M-5) is preferably a compound represented by the formula (M-5.1) to the formula (M-5.4), and the formula (M-5.
  • a compound represented by formula (M-5.4) is preferable.
  • the lower limit of the preferred content of these compounds with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8%, 10%, 13% Yes, 15%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-5) is preferably a compound represented by the formula (M-5.11) to the formula (M-5.17), and the formula (M-5. 11), a compound represented by formula (M-5.13) and formula (M-5.17) is preferable.
  • the lower limit of the preferred content of these compounds with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8%, 10%, 13% Yes, 15%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-5) is preferably a compound represented by the formula (M-5.21) to the formula (M-5.28), and the formula (M-5. 21), a compound represented by formula (M-5.22), formula (M-5.23) and formula (M-5.25).
  • the lower limit of the preferred content of these compounds with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8%, 10%, 13% Yes, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferable content is 40%, 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18% 15% 13% 10% 8% 5%
  • the compound represented by the general formula (M) is preferably a compound represented by the general formula (M-6).
  • R M61 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 M61 to X M64 are each independently fluorine.
  • Y M61 represents a fluorine atom, a chlorine atom or OCF 3
  • the lower limit of the preferable content of the compound represented by the general formula (M-6) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • composition of the present invention When the composition of the present invention is 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 (M-6). In the case of a 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 (M-6).
  • the compound represented by the general formula (M-6) is specifically preferably a compound represented by the formula (M-6.1) to the formula (M-6.4). It is preferable to contain a compound represented by M-6.2) and formula (M-6.4).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-6) is specifically preferably a compound represented by the formula (M-6.11) to the formula (M-6.14). It is preferable to contain a compound represented by M-6.12) and formula (M-6.14).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-6) is specifically preferably a compound represented by the formula (M-6.21) to the formula (M-6.24). It is preferable to contain a compound represented by formula (M-6.21), formula (M-6.22) and formula (M-6.24).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-6) is specifically preferably a compound represented by the formula (M-6.31) to the formula (M-6.34). Among them, it is preferable to contain a compound represented by the formula (M-6.31) and the formula (M-6.32).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-6) is specifically preferably a compound represented by the formula (M-6.41) to the formula (M-6.44). It is preferable to contain a compound represented by M-6.42).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M) is preferably a compound selected from the group of compounds represented by the general formula (M-7).
  • X M71 to X M76 each independently represents a fluorine atom or a hydrogen atom
  • R M71 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 represents an alkoxy group
  • Y M71 represents a fluorine atom or OCF 3.
  • the content of the compound represented by the general formula (M-7) is an upper limit and a lower limit for each embodiment in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. There is a value.
  • the lower limit of the preferred content of the compound represented by formula (M-7) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • 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 (M-7).
  • the composition of the present invention 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 (M-7).
  • it 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 (M-7).
  • a 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 (M-7).
  • the compound represented by the general formula (M-7) is preferably a compound represented by the formula (M-7.1) to the formula (M-7.4), and the formula (M-7. It is preferable that it is a compound represented by 2).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-7) is preferably a compound represented by the formula (M-7.11) to the formula (M-7.14), and the formula (M-7. 11) and a compound represented by the formula (M-7.12) are preferable.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-7) is preferably a compound represented by the formula (M-7.21) to the formula (M-7.24). 21) and a compound represented by the formula (M-7.22) are preferable.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M) is preferably a compound represented by the general formula (M-8).
  • X M81 to X M84 each independently represents a fluorine atom or a hydrogen atom
  • Y M81 represents a fluorine atom, a chlorine atom or —OCF 3
  • R M81 represents an alkyl group having 1 to 5 carbon atoms
  • a M81 and A M82 are each independently 1,4-cyclohexylene group, 1,4-phenylene group or
  • the hydrogen atom on the 1,4-phenylene group may be substituted with a fluorine atom.
  • the lower limit of the preferable content of the compound represented by formula (M-8) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 (M-8) used in the composition of the present invention is specifically represented by the formula (M-8.1) to the formula (M-8.4).
  • it is a compound, and among them, it is preferable to contain a compound represented by formula (M-8.1) or formula (M-8.2).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-8) used in the composition of the present invention is specifically represented by the formula (M-8.11) to the formula (M-8.14).
  • a compound is preferable, and among them, a compound represented by the formula (M-8.12) is preferably included.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-8) used in the composition of the present invention is specifically represented by the formula (M-8.21) to the formula (M-8.24).
  • a compound is preferable, and among them, a compound represented by the formula (M-8.22) is preferably contained.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-8) used in the composition of the present invention is specifically represented by the formula (M-8.31) to the formula (M-8.34).
  • a compound is preferable, and among them, a compound represented by the formula (M-8.32) is preferably contained.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by formula (M-8) used in the composition of the present invention is specifically represented by formula (M-8.41) to formula (M-8.44).
  • a compound is preferable, and among them, a compound represented by the formula (M-8.42) is preferably included.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-8) used in the composition of the present invention is specifically represented by the formula (M-8.51) to the formula (M-8.54).
  • a compound is preferable, and among them, a compound represented by the formula (M-8.52) is preferably included.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M) may have the following partial structure in its structure.
  • the black spot in the formula represents a carbon atom in the ring structure to which the partial structure is bonded.
  • the compound having the partial structure is preferably a compound represented by general formulas (M-10) to (M-18).
  • the compound represented by the general formula (M-10) is as follows.
  • X M101 and X M102 each independently represent a fluorine atom or a hydrogen atom
  • Y M101 represents a fluorine atom, a chlorine atom or —OCF 3
  • R M101 represents an alkyl group having 1 to 5 carbon atoms
  • W M101 and W M102 each independently represent —CH 2 — or —O—.
  • the lower limit of the preferable content of the compound represented by the general formula (M-10) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 formula (M-10) used in the composition of the present invention is specifically represented by formula (M-10.1) to formula (M-10.12).
  • a compound is preferable, and among them, a compound represented by formula (M-10. 5) to formula (M-10.12) is preferably contained.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-11) is as follows.
  • X M111 to X M114 each independently represents a fluorine atom or a hydrogen atom
  • Y M111 represents a fluorine atom, a chlorine atom or —OCF 3
  • R M111 represents an alkyl group having 1 to 5 carbon atoms
  • the lower limit of the preferable content of the compound represented by the general formula (M-11) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 (M-11) used in the composition of the present invention is specifically represented by the formula (M-11.1) to the formula (M-11.8).
  • a compound is preferable, and among them, a compound represented by formula (M-11.1) to formula (M-11.4) is preferably contained.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-12) is as follows.
  • X M121 and X M122 each independently represent a fluorine atom or a hydrogen atom
  • Y M121 represents a fluorine atom, a chlorine atom or —OCF 3
  • R M121 represents an alkyl group having 1 to 5 carbon atoms
  • W M121 and W M122 each independently represent —CH 2 — or —O—.
  • the lower limit of the preferable content of the compound represented by formula (M-12) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 (M-12) used in the composition of the present invention is specifically represented by the formula (M-12.1) to the formula (M-12.12).
  • a compound is preferable, and among them, a compound represented by formula (M-12.5) to formula (M-12.8) is preferably contained.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-13) is as follows.
  • X M131 to X M134 each independently represents a fluorine atom or a hydrogen atom
  • Y M131 represents a fluorine atom, a chlorine atom or —OCF 3
  • R M131 represents an alkyl group having 1 to 5 carbon atoms
  • W M131 and W M132 each independently represent —CH 2 — or —O—.
  • the lower limit of the preferable content of the compound represented by formula (M-13) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 (M-13) used in the composition of the present invention is specifically represented by the formula (M-13.1) to the formula (M-13.28). It is preferable that the compound is a compound. Among them, the formulas (M-13.1) to (M-13.4), (M-13.11) to (M-13.14), (M-13.25) to ( It is preferable to contain a compound represented by M-13.28).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-14) is as follows.
  • X M141 to X M144 each independently represents a fluorine atom or a hydrogen atom
  • Y M141 represents a fluorine atom, a chlorine atom or —OCF 3
  • R M141 represents an alkyl group having 1 to 5 carbon atoms
  • W M141 and W M142 each independently represent —CH 2 — or —O—.
  • the lower limit of the preferable content of the compound represented by the general formula (M-14) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 (M-14) used in the composition of the present invention is specifically represented by the formula (M-14.1) to the formula (M-14.8).
  • a compound is preferable, and among them, a compound represented by formula (M-14.5) and formula (M-14.8) is preferably contained.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-15) is as follows.
  • X M151 and X M152 each independently represent a fluorine atom or a hydrogen atom
  • Y M151 represents a fluorine atom, a chlorine atom or —OCF 3
  • R M151 represents an alkyl group having 1 to 5 carbon atoms
  • W M151 and W M152 each independently represent —CH 2 — or —O—.
  • the lower limit of the preferred content of the compound represented by formula (M-15) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 (M-15) used in the composition of the present invention is specifically represented by the formulas (M-15.1) to (M-15.14).
  • the compound contains a compound represented by formula (M-15.5) to formula (M-15.8) or formula (M-15.11) to formula (M-15.14). It is preferable to do.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-16) is as follows.
  • X M161 to X M164 each independently represents a fluorine atom or a hydrogen atom
  • Y M161 represents a fluorine atom, a chlorine atom or —OCF 3
  • R M161 represents an alkyl group having 1 to 5 carbon atoms
  • the lower limit of the preferable content of the compound represented by formula (M-16) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 (M-16) used in the composition of the present invention is specifically represented by the formula (M-16.1) to the formula (M-16.8).
  • a compound is preferable, and among them, it is preferable to include a compound represented by Formula (M-16.1) to Formula (M-16.4).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-17) is as follows.
  • X M171 ⁇ X M174 are each independently a fluorine atom or a hydrogen atom, Y M171 fluorine atom, a chlorine atom or -OCF 3,
  • R M171 is an alkyl group having 1 to 5 carbon atoms, Represents an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and
  • W M171 and W M172 each independently represent —CH 2 — or —O—.
  • the lower limit of the preferable content of the compound represented by formula (M-17) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 (M-17) used in the composition of the present invention is specifically represented by the formula (M-17.1) to the formula (M-17.52).
  • the compound is a compound (M-17.9) to (M-17.12), (M-17.21) to (M-17.28), (M-17. 45) to a compound represented by the formula (M-17.48) is preferably contained.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (M-18) is as follows.
  • X M181 to X M186 each independently represents a fluorine atom or a hydrogen atom
  • Y M181 represents a fluorine atom, a chlorine atom or —OCF 3
  • R M181 represents an alkyl group having 1 to 5 carbon atoms
  • the lower limit of the preferred content of the compound represented by formula (M-18) with respect to the total amount of the composition of the present invention is 1%, 2%, 4%, 5% Yes, 8%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when a composition that does not easily cause seizure 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 (M-18) used in the composition of the present invention is specifically represented by the formula (M-18.1) to the formula (M-18.12).
  • a compound is preferable, and among them, it is preferable to include a compound represented by Formula (M-18.5) to Formula (M-18.8).
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • composition of the present invention preferably contains one or more compounds represented by the general formula (K). These compounds correspond to dielectrically positive compounds ( ⁇ is greater than 2).
  • R K1 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 —CH ⁇ CH—, — Optionally substituted by C ⁇ C—, —O—, —CO—, —COO— or —OCO—, n K1 represents 0, 1, 2, 3 or 4;
  • a K1 and A K2 are each independently (A) 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 (b) a 1,4-phenylene group (one —CH ⁇ present in this group or two or more non-adjacent —CH ⁇ may be replaced by —N ⁇ ).
  • a hydrogen atom on the group (a) and the group (b) may be independently substituted with a cyano group, a fluorine atom or a chlorine atom
  • Z K1 and Z K2 are each independently a single bond, —CH 2 CH 2 —, — (CH 2 ) 4 —, —OCH 2 —, —CH 2 O—, —OCF 2 —, —CF 2 O—, Represents —COO—, —OCO— or —C ⁇ C—
  • n K1 is 2, 3 or 4 and a plurality of A K2 are present, they may be the same or different, and n K1 is 2, 3 or 4 and a plurality of Z K1 is present
  • X K1 and X K3 each independently represent a hydrogen atom, a chlorine atom or a fluorine atom
  • XK2 represents a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group
  • R K1 represents an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or alkenyloxy having 2 to 8 carbon atoms.
  • a group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkenyloxy group having 2 to 5 carbon atoms is preferable.
  • An alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms is more preferable, an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 3 carbon atoms is more preferable, and an alkenyl group having 3 carbon atoms. (Propenyl group) is particularly preferred.
  • RK1 is preferably an alkyl group when importance is placed on reliability, and an alkenyl group is preferred when importance is placed on lowering viscosity.
  • the ring structure to which it is bonded is a phenyl group (aromatic)
  • An alkenyl group having 4 to 5 atoms is preferable
  • the ring structure to which the alkenyl group is bonded is a saturated ring structure such as cyclohexane, pyran and dioxane
  • 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 total of carbon atoms and oxygen atoms, if present is preferably 5 or less, and is preferably linear.
  • the alkenyl group is preferably selected from groups represented by any of the formulas (R1) to (R5). (The black dot in each formula represents the carbon atom in the ring structure to which the alkenyl group is bonded.)
  • a K1 and A K2 are preferably aromatic when it is required to independently increase ⁇ n, and are preferably aliphatic for improving the response speed, and trans-1,4 -Cyclohexylene group, 1,4-phenylene group, 2-fluoro-1,4-phenylene group, 3-fluoro-1,4-phenylene group, 3,5-difluoro-1,4-phenylene group, 2, 3-difluoro-1,4-phenylene group, 1,4-cyclohexenylene group, 1,4-bicyclo [2.2.2] octylene group, piperidine-1,4-diyl group, naphthalene-2,6- It preferably represents a diyl group, decahydronaphthalene-2,6-diyl group or 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, and more preferably represents the following structure:
  • Z K1 and Z K2 are each independently -CH 2 O -, - CF 2 O -, - CH 2 CH 2 -, - CF 2 CF 2 - or preferably a single bond, -CF 2 O-, —CH 2 CH 2 — or a single bond is more preferable, and —CF 2 O— or a single bond is particularly preferable.
  • n K1 is preferably 0, 1, 2 or 3, preferably 0, 1 or 2, preferably 0 or 1 when emphasizing the improvement of ⁇ , and preferably 1 or 2 when emphasizing Tni. .
  • the types of compounds that can be combined are used in combination according to desired properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • desired properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the content of the compound represented by the general formula (K) is low temperature solubility, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, image sticking, It is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the lower limit of the preferable content of the compound represented by the formula (K) with respect to the total amount of the composition of the present invention is 1%, 10%, 20%, 30%, 40% %, 50%, 55%, 60%, 65%, 70%, 75%, 80%.
  • the upper limit of the preferable content is, for example, 95%, 85%, 75%, 65%, and 55% with respect to the total amount of the composition of the present invention. Yes, 45%, 35%, 25%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 (K) is preferably a compound selected from the group of compounds represented by the general formula (K-1), for example.
  • R K11 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 K11 to X K14 are each independently hydrogen. represents an atom or a fluorine atom
  • Y K11 represents a fluorine atom or OCF 3.
  • the type of the compound used is, for example, one type as one embodiment of the present invention, two types, and three or more types.
  • the lower limit of the preferable content of the compound represented by the formula (K-1) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8% 10%, 13%, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 (K-1) is specifically preferably a compound represented by the formula (K-1.1) to the formula (K-1.4).
  • a compound represented by formula (K-1.2) is preferred, and a compound represented by formula (K-1.2) is more preferred. It is also preferred to use the compounds represented by formula (K-1.1) or formula (K-1.2) at the same time.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by General Formula (K) is preferably a compound selected from the group of compounds represented by General Formula (K-2), for example.
  • R K21 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 K21 to X K24 are each independently hydrogen. represents an atom or a fluorine atom
  • Y K21 represents a fluorine atom or OCF 3.
  • the type of the compound used is, for example, one type as one embodiment of the present invention, two types, and three or more types.
  • the lower limit of the preferable content of the compound represented by the formula (K-2) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8% 10%, 13%, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 (K-2) is specifically preferably a compound represented by the formula (K-2.1) to the formula (K-2.6).
  • a compound represented by formula (K-2.5) or formula (K-2.6) is preferred, and a compound represented by formula (K-2.6) is more preferred. It is also preferred to use the compounds represented by formula (K-2.5) or formula (K-2.6) at the same time.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by General Formula (K) is preferably a compound selected from the group of compounds represented by General Formula (K-3), for example.
  • R K31 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 K31 to X K36 are each independently hydrogen.
  • Y K31 represents a fluorine atom or OCF 3.
  • the type of the compound used is, for example, one type as one embodiment of the present invention, two types, and three or more types.
  • the lower limit of the preferable content of the compound represented by the formula (K-3) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8% 10%, 13%, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 (K-3) is preferably a compound represented by the formula (K-3.1) to the formula (K-3.4).
  • a compound represented by K-3.1) or formula (K-3.2) is more preferable. It is also preferred to use the compounds represented by formula (K-3.1) and formula (K-3.2) at the same time.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (K) is preferably, for example, a compound selected from the group of compounds represented by the general formula (K-4).
  • R K41 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 K41 to X K46 are each independently hydrogen.
  • An atom or a fluorine atom Y K41 represents a fluorine atom or OCF 3
  • Z K41 represents —OCH 2 —, —CH 2 O—, —OCF 2 —, or —CF 2 O—.
  • the lower limit of the preferable content of the compound represented by the formula (K-4) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8% 10%, 13%, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 (K-4) is preferably a compound represented by the formula (K-4.1) to the formula (K-4.18). More preferred are compounds represented by (K-4.1), formula (K-4.2), formula (K-4.11), and (K-4.12). It is also preferred to use compounds represented by formula (K-4.1), formula (K-4.2), formula (K-4.11), and (K-4.12) at the same time.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by the general formula (K) is preferably a compound selected from, for example, a compound group represented by the general formula (K-5).
  • R K51 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 K51 to X K56 are each independently hydrogen.
  • An atom or a fluorine atom Y K51 represents a fluorine atom or OCF 3
  • Z K51 represents —OCH 2 —, —CH 2 O—, —OCF 2 —, or —CF 2 O—.
  • the lower limit of the preferable content of the compound represented by the formula (K-5) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8% 10%, 13%, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 (K-5) is preferably a compound represented by the formula (K-5.1) to the formula (K-5.18).
  • a compound represented by the formula (K-5.14) to the compound represented by the formula (K-5.14) is preferable, and a compound represented by the formula (K-5.12) is more preferable.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the compound represented by General Formula (K) is preferably a compound selected from the group of compounds represented by General Formula (K-6), for example.
  • R K61 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 K61 to X K68 are each independently hydrogen. represents an atom or a fluorine atom
  • Y K61 represents a fluorine atom or OCF 3
  • Z K61 is -OCH 2 -, - CH 2 O -, - OCF 2 - or an -CF 2 O-).
  • the lower limit of the preferable content of the compound represented by the formula (K-6) with respect to the total amount of the composition of the present invention is 1%, 2%, 5%, 8% 10%, 13%, 15%, 18%, 20%, 22%, 25%, 30%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • the composition of the present invention keeps the viscosity low and a composition having a high response speed is required, it is preferable to lower the lower limit and lower the upper limit. Furthermore, when the composition of the present invention keeps Tni high and a composition having 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 (K-6) is preferably a compound represented by the formula (K-6.1) to the formula (K-6.18).
  • Compounds represented by formula (K-6.18) to formula (K-6.18) are preferred, and compounds represented by formula (K-6.16) and formula (K-6.17) are more preferred. It is also preferred to use the compounds represented by formula (K-6.16) and formula (K-6.17) at the same time.
  • the lower limit of the preferred content of these compounds relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10% Yes, 13%, 15%, 18%, 20%.
  • the upper limit of the preferred content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10% 8% and 5%.
  • composition of the present invention further contains one or more compounds represented by the general formula (L).
  • the compound represented by the general formula (L) corresponds to a dielectrically neutral compound ( ⁇ value is ⁇ 2 to 2).
  • R L1 and R L2 each independently 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—, n L1 represents 0, 1, 2 or 3,
  • a L1 , A L2 and A L3 each independently represent (a) a 1,4-cyclohexylene group (one —CH 2 — present in the group or two or more —CH 2 — not adjacent to each other).
  • the compound represented by general formula (L) may be used independently, it can also be used in combination.
  • the types of compounds that can be combined but they are used in appropriate combinations according to desired properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention.
  • the content of the compound represented by the general formula (L) is low-temperature solubility, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, image sticking, It is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the lower limit of the preferable content of the compound represented by the formula (L) with respect to the total amount of the composition of the present invention is 1%, 10%, 20%, 30%, 40 %, 50%, 55%, 60%, 65%, 70%, 75%, 80%.
  • the upper limit of the preferable content is 95%, 85%, 75%, 65%, 55%, 45%, 35%, and 25%.
  • the above lower limit value is preferably high and the upper limit value is preferably high. Furthermore, when the composition of the present invention maintains a high Tni and requires a composition having good temperature stability, the above lower limit value is preferably high and the upper limit value is preferably high. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the above lower limit value is lowered and the upper limit value is low.
  • the number of halogen atoms present in the molecule is preferably 0, 1, 2 or 3, preferably 0 or 1, and 1 is preferred when importance is attached to compatibility with other liquid crystal molecules.
  • R L1 and R L2 are preferably both alkyl groups, and when importance is placed on reducing the volatility of the compound, it is preferably an alkoxy group, and importance is placed on viscosity reduction. In this case, at least one is preferably an alkenyl group.
  • 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).
  • a phenyl group aromatic
  • Alkyl groups, linear alkoxy groups having 1 to 4 carbon atoms and linear alkenyl groups having 2 to 5 carbon atoms are preferred.
  • the total of carbon atoms and oxygen atoms, if present, is preferably 5 or less, and is preferably linear.
  • the alkenyl group is preferably selected from groups represented by any of the formulas (R1) to (R5). (The black dot in each formula represents the carbon atom in the ring structure to which the alkenyl group is bonded.)
  • n L1 is preferably 0 when importance is attached to the response speed, 2 or 3 is preferred for improving the upper limit temperature of the nematic phase, and 1 is preferred for balancing these. In order to satisfy the properties required for the composition, it is preferable to combine compounds having different values.
  • a L1 , A L2, and A L3 are preferably aromatic when it is required to increase ⁇ n, and are preferably aliphatic for improving the response speed, and are each independently trans- 1,4-cyclohexylene group, 1,4-phenylene group, 2-fluoro-1,4-phenylene group, 3-fluoro-1,4-phenylene group, 3,5-difluoro-1,4-phenylene group 1,4-cyclohexenylene group, 1,4-bicyclo [2.2.2] octylene group, piperidine-1,4-diyl group, naphthalene-2,6-diyl group, decahydronaphthalene-2,6 -It preferably represents a diyl group or a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, and more preferably represents the following structure:
  • it represents a trans-1,4-cyclohexylene group or a 1,4-phenylene group.
  • Z L1 and Z L2 are preferably single bonds when the response speed is important.
  • the number of halogen atoms in the molecule is preferably 0 or 1.
  • the compound represented by the general formula (L) is preferably a compound selected from the group of compounds represented by the general formula (L-1) to the general formula (L-8).
  • the compound represented by the general formula (L-1) is the following compound.
  • R L11 and R L12 each independently represent the same meaning as R L1 and R L2 in the general formula (L).
  • R L11 and R L12 are preferably a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 carbon atoms, and a linear alkenyl group having 2 to 5 carbon atoms. .
  • the compound represented by the general formula (L-1) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content is 1%, 2%, 3%, 5%, 7%, 10%, and 15% with respect to the total amount of the composition of the present invention. %, 20%, 25%, 30%, 35%, 40%, 45%, 50%, and 55%.
  • the upper limit of the preferable content is 95%, 90%, 85%, 80%, 75%, 70%, 65%, based on the total amount of the composition of the present invention. %, 60%, 55%, 50%, 45%, 40%, 35%, 30%, 25%.
  • the above lower limit value is preferably high and the upper limit value is preferably high. Furthermore, when the composition of the present invention requires a high Tni and a composition having good temperature stability, it is preferable that the lower limit value is moderate and the upper limit value is moderate. 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 (L-1) is preferably a compound selected from the group of compounds represented by the general formula (L-1-1).
  • the compound represented by the general formula (L-1-1) is a compound selected from the group of compounds represented by the formula (L-1-1.1) to the formula (L-1-1.3). And is preferably a compound represented by formula (L-1-1.2) or formula (L-1-1.3), and particularly represented by formula (L-1-1.3). It is preferable that it is a compound.
  • the lower limit of the preferable content of the compound represented by the formula (L-1-1.3) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, and 10%.
  • the upper limit of the preferable content is 20%, 15%, 13%, 10%, 8%, 7%, and 6% with respect to the total amount of the composition of the present invention. %, 5%, 3%.
  • the compound represented by the general formula (L-1) is preferably a compound selected from the group of compounds represented by the general formula (L-1-2).
  • R L12 represents the same meaning as in general formula (L-1).
  • the lower limit of the preferable content of the compound represented by the formula (L-1-2) with respect to the total amount of the composition of the present invention is 1%, 5%, 10%, 15% 17%, 20%, 23%, 25%, 27%, 30%, 35%.
  • the upper limit of the preferable content is 60%, 55%, 50%, 45%, 42%, 40%, and 38% with respect to the total amount of the composition of the present invention. %, 35%, 33%, and 30%.
  • the compound represented by the general formula (L-1-2) is a compound selected from the group of compounds represented by the formula (L-1-2.1) to the formula (L-1-2.4).
  • the compound represented by the formula (L-1-2.1) and the formula (L-1-2.2) is preferable, and in particular, the compound represented by the formula (L-1-2.2).
  • Compounds are preferred because they particularly improve the response speed of the compositions of the present invention.
  • Tni higher than the response speed
  • the content of the compounds represented by the formulas (L-1-2.3) and (L-1-2.4) is not preferably 10% or more in order to improve the solubility at low temperatures.
  • the lower limit of the preferable content of the compound represented by the formula (L-1-2.1) with respect to the total amount of the composition of the present invention is 10%, 15%, 18%, 20%, 23%, 25%, 27%, 30%, 33%, 35%, 38%, and 40%.
  • the upper limit of the preferable content is 60%, 55%, 50%, 45%, 43%, 40%, and 38% with respect to the total amount of the composition of the present invention. %, 35%, 32%, 30%, 27%, 25%, and 22%.
  • the lower limit of the preferable content of the compound represented by the formula (L-1-2.2) with respect to the total amount of the composition of the present invention is 10%, 15%, 18%, 20%, 23%, 25%, 27%, 30%, 33%, 35%, 38%, and 40%.
  • the upper limit of the preferable content is 60%, 55%, 50%, 45%, 43%, 40%, and 38% with respect to the total amount of the composition of the present invention. %, 35%, 32%, 30%, 27%, 25%, and 22%.
  • the lower limit of the preferable total content of the compound represented by the formula (L-1-1.3) and the compound represented by the formula (L-1-2.2) with respect to the total amount of the composition of the present invention The values are 10%, 15%, 20%, 25%, 27%, 30%, 35% and 40%.
  • the upper limit of the preferable content is 60%, 55%, 50%, 45%, 43%, 40%, and 38% with respect to the total amount of the composition of the present invention. %, 35%, 32%, 30%, 27%, 25%, and 22%.
  • the compound represented by the general formula (L-1) is preferably a compound selected from the group of compounds represented by the general formula (L-1-3).
  • R L13 and R L14 each independently represents an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms.
  • R L13 and R L14 are preferably a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 carbon atoms, and a linear alkenyl group having 2 to 5 carbon atoms. .
  • the lower limit of the preferable content of the compound represented by the general formula (L-1-3) with respect to the total amount of the composition of the present invention is 1%, 5%, 10%, 13 %, 15%, 17%, 20%, 23%, 25%, 30%.
  • the upper limit of the preferable content is 60%, 55%, 50%, 45%, 40%, 37%, and 35% with respect to the total amount of the composition of the present invention. %, 33%, 30%, 27%, 25%, 23%, 23%, 20%, 17%, 15%, 13%, 10% %.
  • the compound represented by the general formula (L-1-3) is a compound selected from the group of compounds represented by the formula (L-1-3.1) to the formula (L-1-3.12).
  • the compound represented by the formula (L-1-3.1) is preferable because the response speed of the composition of the present invention is particularly improved. Further, when obtaining Tni higher than the response speed, the equation (L-1-3.3), the equation (L-1-3.4), the equation (L-1-3.11), and the equation (L ⁇ It is preferable to use a compound represented by 1-3.12). Sum of compounds represented by formula (L-1-3.3), formula (L-1-3.4), formula (L-1-3.11) and formula (L-1-3.12) The content of is not preferably 20% or more in order to improve the solubility at low temperatures.
  • the lower limit of the preferable content of the compound represented by the formula (L-1-3.1) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferable content is 20%, 17%, 15%, 13%, 10%, 8%, and 7% with respect to the total amount of the composition of the present invention. % And 6%.
  • the compound represented by the general formula (L-1) is preferably a compound selected from the group of compounds represented by the general formula (L-1-4) and / or (L-1-5).
  • R L15 and R L16 each independently represent an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms.
  • R L15 and R L16 are preferably a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 carbon atoms, and a linear alkenyl group having 2 to 5 carbon atoms. .
  • the lower limit of the preferable content of the compound represented by the general formula (L-1-4) with respect to the total amount of the composition of the present invention is 1%, 5%, 10%, 13 %, 15%, 17%, and 20%.
  • the upper limit of the preferable content is 25%, 23%, 20%, 17%, 15%, 13%, and 10% with respect to the total amount of the composition of the present invention. %.
  • the lower limit of the preferable content of the compound represented by the general formula (L-1-5) with respect to the total amount of the composition of the present invention is 1%, 5%, 10%, %, 15%, 17%, and 20%.
  • the upper limit of the preferable content is 25%, 23%, 20%, 17%, 15%, 13%, and 10% with respect to the total amount of the composition of the present invention. %.
  • the compounds represented by the general formulas (L-1-4) and (L-1-5) are represented by the formulas (L-1-4.1) to (L-1-5.3). Are preferably selected from the group of compounds represented by formula (L-1-4.2) or (L-1-5.2).
  • the lower limit of the preferable content of the compound represented by the formula (L-1-4.2) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, 10%, 13%, 15%, 18%, 20%.
  • the upper limit of the preferable content is 20%, 17%, 15%, 13%, 10%, 8%, and 7% with respect to the total amount of the composition of the present invention. % And 6%.
  • the compound represented by the general formula (L-2) is the following compound.
  • R L21 and R L22 each independently represent the same meaning as R L1 and R L2 in the general formula (L).
  • R L21 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms
  • R L22 is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or a carbon atom.
  • An alkoxy group of 1 to 4 is preferable.
  • the compound represented by the general formula (L-1) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the formula (L-2) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5% 7% and 10%.
  • the upper limit of the preferable content is 20%, 15%, 13%, 10%, 8%, 7%, and 6% with respect to the total amount of the composition of the present invention. %, 5%, 3%.
  • the compound represented by the general formula (L-2) is preferably a compound selected from the group of compounds represented by the formulas (L-2.1) to (L-2.6).
  • a compound represented by formula (L-2.1), formula (L-2.3), formula (L-2.4) and formula (L-2.6) is preferred.
  • the compound represented by the general formula (L-3) is the following compound.
  • R L31 and R L32 each independently represent the same meaning as R L1 and R L2 in General Formula (L).
  • R L31 and R L32 are each independently preferably 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.
  • the compound represented by the general formula (L-3) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferred content of the compound represented by formula (L-3) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5% Yes, 7%, 10%.
  • the upper limit of the preferable content is 20%, 15%, 13%, 10%, 8%, 7%, and 6% with respect to the total amount of the composition of the present invention. %, 5%, 3%.
  • 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 (L-3) is preferably a compound selected from the group of compounds represented by the formulas (L-3.1) to (L-3.4).
  • a compound represented by the formula (L-3.7) from (L-3.2) is preferable.
  • the compound represented by the general formula (L-4) is the following compound.
  • R L41 and R L42 each independently represent the same meaning as R L1 and R L2 in General Formula (L).
  • R L41 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms
  • R L42 is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or a carbon atom.
  • An alkoxy group of 1 to 4 is preferable.
  • the compound represented by the general formula (L-4) can be used alone, or two or more compounds can be used in combination.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the content of the compound represented by the general formula (L-4) 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 lower limit of the preferable content of the compound represented by formula (L-4) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5% Yes, 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35%, 40% is there.
  • the upper limit of the preferable content of the compound represented by the general formula (L-4) with respect to the total amount of the composition of the present invention is 50%, 40%, 35%, 30% Yes, 20%, 15%, 10%, 5%.
  • the compound represented by general formula (L-4) is preferably a compound represented by formula (L-4.1) to formula (L-4.3), for example.
  • the formula (L-4.2) Even if it contains a compound represented by formula (L-4.1), it contains both a compound represented by formula (L-4.1) and a compound represented by formula (L-4.2). Or all of the compounds represented by formulas (L-4.1) to (L-4.3) may be included.
  • the lower limit of the preferable content of the compound represented by formula (L-4.1) or formula (L-4.2) with respect to the total amount of the composition of the present invention is 3%, Yes, 7%, 9%, 11%, 12%, 13%, 18%, 21%, and the preferred upper limit is 45, 40% , 35%, 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8% .
  • the amount of both compounds relative to the total amount of the composition of the present invention is The lower limit of the preferred content is 15%, 19%, 24%, and 30%, and the preferred upper limit is 45, 40%, 35%, and 30%. Yes, 25%, 23%, 20%, 18%, 15%, 13%.
  • the compound represented by the general formula (L-4) is preferably, for example, a compound represented by the formula (L-4.4) to the formula (L-4.6). It is preferable that it is a compound represented by this.
  • the formula (L -4.5) contains both the compound represented by formula (L-4.4) and the compound represented by formula (L-4.5). May be.
  • the lower limit of the preferable content of the compound represented by the formula (L-4.4) or the formula (L-4.5) with respect to the total amount of the composition of the present invention is 3%, Yes, 7%, 9%, 11%, 12%, 13%, 18%, 21%.
  • Preferred upper limit values are 45, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15%, 13% %, 10%, and 8%.
  • the amount of both compounds relative to the total amount of the composition of the present invention is The lower limit of the preferred content is 15%, 19%, 24%, and 30%, and the preferred upper limit is 45, 40%, 35%, and 30%. Yes, 25%, 23%, 20%, 18%, 15%, 13%.
  • the compound represented by the general formula (L-4) is preferably a compound represented by the formula (L-4.7) to the formula (L-4.10), and particularly the formula (L-4.
  • the compound represented by 9) is preferred.
  • the compound represented by the general formula (L-5) is the following compound.
  • R L51 and R L52 each independently represent the same meaning as R L1 and R L2 in the general formula (L).
  • R L51 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms
  • R L52 is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or a carbon atom.
  • An alkoxy group of 1 to 4 is preferable.
  • the compound represented by the general formula (L-5) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the content of the compound represented by the general formula (L-5) includes solubility at low temperature, transition temperature, electrical reliability, birefringence index, process suitability, dripping marks, It is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the lower limit of the preferable content of the compound represented by the general formula (L-5) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5% Yes, 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35%, 40% is there.
  • the upper limit of the preferable content of the compound represented by the formula (L-5) with respect to the total amount of the composition of the present invention is 50%, 40%, 35%, and 30%. , 20%, 15%, 10%, 5%
  • the compound represented by the general formula (L-5) is represented by the formula (L-5.1) or the formula (L-5.2).
  • the compound represented by formula (L-5.1) is particularly desirable.
  • the lower limit of the preferable content of these compounds with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, and 7%.
  • the upper limit of the preferable content of these compounds is 20%, 15%, 13%, 10%, and 9%.
  • the compound represented by the general formula (L-5) is preferably a compound represented by the formula (L-5.3) or the formula (L-5.4).
  • the lower limit of the preferable content of these compounds with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, and 7%.
  • the upper limit of the preferable content of these compounds is 20%, 15%, 13%, 10%, and 9%.
  • the compound represented by the general formula (L-5) is preferably a compound selected from the group of compounds represented by the formulas (L-5.5) to (L-5.7).
  • the compound represented by L-5.7) is preferred.
  • the lower limit of the preferable content of these compounds with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, and 7%.
  • the upper limit of the preferable content of these compounds is 20%, 15%, 13%, 10%, and 9%.
  • the compound represented by the general formula (L-6) is the following compound.
  • R L61 and R L62 each independently represent the same meaning as R L1 and R L2 in the general formula (L), and X L61 and X L62 each independently represent a hydrogen atom or a fluorine atom.
  • R L61 and R L62 are each independently preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and one of X L61 and X L62 is a fluorine atom and the other is a hydrogen atom. Is preferred.
  • the compound represented by the general formula (L-6) can be used alone, or two or more compounds can be used in combination. There are no particular restrictions on the types of compounds that can be combined, but they are used in appropriate combinations according to the required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, four kinds, and five kinds or more.
  • the lower limit of the preferable content of the compound represented by the general formula (L-6) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5% Yes, 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35%, 40% is there.
  • the upper limit of the preferable content of the compound represented by the formula (L-6) with respect to the total amount of the composition of the present invention is 50%, 40%, 35%, and 30%. 20%, 15%, 10%, 5%.
  • the compound represented by the general formula (L-6) is preferably a compound represented by the formula (L-6.1) to the formula (L-6.9).
  • the compound represented by the general formula (L-6) is preferably, for example, a compound represented by the formula (L-6.10) to the formula (L-6.17).
  • a compound represented by L-6.11) is preferable.
  • the lower limit of the preferable content of these compounds with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, and 7%.
  • the upper limit of the preferable content of these compounds is 20%, 15%, 13%, 10%, and 9%.
  • the compound represented by the general formula (L-7) is the following compound.
  • R L71 and R L72 each independently represent the same meaning as R L1 and R L2 in Formula (L), A L71 and A L72 is A L2 and in the general formula (L) independently A L3 represents the same meaning, but the hydrogen atoms on A L71 and A L72 may be each independently substituted with a fluorine atom, Z L71 represents the same meaning as Z L2 in formula (L), X L71 and X L72 each independently represent a fluorine atom or a hydrogen atom.
  • R L71 and R L72 are each independently preferably 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, and
  • a L71 and A L72 Are each independently preferably a 1,4-cyclohexylene group or a 1,4-phenylene group, the hydrogen atoms on A L71 and A L72 may be each independently substituted with a fluorine atom, and
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, and four kinds.
  • the content of the compound represented by the general formula (L-7) includes solubility at low temperature, transition temperature, electrical reliability, birefringence index, process suitability, dripping marks, It is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the lower limit of the preferable content of the compound represented by the general formula (L-7) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5% Yes, 7%, 10%, 14%, 16%, 20%.
  • the upper limit of the preferable content of the compound represented by the formula (L-7) with respect to the total amount of the composition of the present invention is 30%, 25%, 23%, and 20%. 18%, 15%, 10%, 5%.
  • the content of the compound represented by formula (L-7) is preferably increased, and when an embodiment with low viscosity is desired, the content is It is preferable to reduce the amount.
  • the compound represented by the general formula (L-7) is preferably a compound represented by the formula (L-7.1) to the formula (L-7.4), and the formula (L-7. It is preferable that it is a compound represented by 2).
  • the compound represented by the general formula (L-7) is preferably a compound represented by the formula (L-7.11) to the formula (L-7.13). It is preferable that it is a compound represented by 11).
  • the compound represented by the general formula (L-7) is a compound represented by the formula (L-7.21) to the formula (L-7.23).
  • a compound represented by formula (L-7.21) is preferable.
  • the compound represented by the general formula (L-7) is preferably a compound represented by the formula (L-7.31) to the formula (L-7.34), and the formula (L-7. 31) or / and a compound represented by the formula (L-7.32).
  • the compound represented by the general formula (L-7) is preferably a compound represented by the formula (L-7.41) to the formula (L-7.44), and the formula (L-7. 41) or / and a compound represented by formula (L-7.42).
  • the compound represented by the general formula (L-8) is the following compound.
  • R L81 and R L82 each independently represent the same meaning as R L1 and R L2 in General Formula (L), and A L81 represents the same meaning or single bond as A L1 in General Formula (L)).
  • each hydrogen atom on A L81 may be independently substituted with a fluorine atom
  • X L81 to X L86 each independently represent a fluorine atom or a hydrogen atom.
  • R L81 and R L82 are each independently an alkyl group having 1 to 5 carbon atoms, an alkenyl group or an alkoxy group having 1 to 4 carbon atoms of 2 to 5 carbon atoms preferably, A L81 is 1, A 4-cyclohexylene group or a 1,4-phenylene group is preferable
  • the hydrogen atoms on A L71 and A L72 may each independently be substituted with a fluorine atom, and the same in the general formula (L-8)
  • the number of fluorine atoms in the ring structure is preferably 0 or 1, and the
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention, two kinds, three kinds, and four kinds.
  • the content of the compound represented by the general formula (L-8) 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 lower limit of the preferable content of the compound represented by formula (L-8) with respect to the total amount of the composition of the present invention is 1%, 2%, 3%, 5% Yes, 7%, 10%, 14%, 16%, 20%.
  • the upper limit of the preferable content of the compound represented by the general formula (L-8) with respect to the total amount of the composition of the present invention is 30%, 25%, 23%, 20% Yes, 18%, 15%, 10%, 5%.
  • the compound represented by the general formula (L-8) is preferably a compound represented by the formula (L-8.1) to the formula (L-8.4), and the formula (L-8. 3), formula (L-8.5), formula (L-8.6), formula (L-8.13), formula (L-8.16) to formula (L-8.18), formula (L)
  • a compound represented by formula (L-8.28) to L-8.23) is more preferable.
  • the liquid crystal composition of the present invention essentially contains the polymerizable compound represented by the general formula (I), but other polymerizable compounds may be used in combination. Specifically, it is preferable to contain one or more compounds selected from the group of compounds represented by formula (II).
  • R 201 , R 202 , R 203 , R 204 , R 205 , R 206 , R 207 , R 208 , R 209 and R 210 are each independently substituted with P 21 -Sp 21 -and fluorine atoms.
  • a 21 is (A) 1,4-cyclohexylene group (this is present in the group one -CH 2 - or nonadjacent two or more -CH 2 -.
  • the group (a), the group (b) and the group (c) are each independently an alkyl group having 1 to 12 carbon atoms or a group having 1 to 12 carbon atoms. alkoxy group, a halogen, a cyano group, a nitro group, or P 21 -S 21 - be substituted with good, Having at least one P 21 —S 21 — in one molecule of the general formula (II);
  • liquid crystal composition containing the polymerizable compound represented by the general formula (I) and the polymerizable compound represented by the general formula (II) can further reduce the occurrence of display defects due to a change in the pretilt angle. It is effective.
  • P 21 —Sp 21 — it is preferable that one or more of P 21 —Sp 21 — is contained in one molecule of the compound represented by the general formula (II), and that 4 or less of P 21 —Sp 21 — is used.
  • the number of P 21 —Sp 21 — present in one molecule of the general formula (II) is preferably 1 or more and 4 or less, more preferably 1 or more and 3 or less, and the general formula (II)
  • the number of P 21 —Sp 21 — in the molecule of the compound represented by is particularly preferably 2 or 3.
  • the compound represented by the general formula (II) has a structure in which two benzene rings and, if necessary, a ring A 21 are connected to each other, and P 21 -Sp 21- in these two benzene rings and the ring A 21 is substituted. Since it has at least one, the compound represented by the general formula (II) exhibits the action and effect as a polymerizable compound.
  • R 201 one or more selected from the group consisting of R 201 , R 202 , R 203 , R 204 , R 205 , R 206 , R 207 , R 208 , R 209 and R 210 If it is, R 201, R 202, R 204, R 207, any one of R 209 or R 210, or two or more kinds P 21 -Sp 21 - - but P 21 -Sp 21 is preferably , R 201 and R 210 are P 21 -Sp 21 - is more preferable.
  • R 201 and R 210 each independently, P 21 -Sp 21 - is preferably, in this case, R 201 and R 210 identical P 21 -Sp 21 - in even different P 21 -Sp 21 - may be.
  • R 202, R 203, R 204, R 205, R 206, R 207, R 208 and R 209 are each independently, P 21 -Sp 21 -, from 1 carbon atom 3 alkyl group, preferably a fluorine atom or a hydrogen atom, P 21 -Sp 21 -, more preferably a fluorine atom or a hydrogen atom, more preferably a fluorine atom or a hydrogen atom.
  • P 21 is preferably the formula (R-1) or the formula (R-2) described in the general formula (I), more preferably an acryl group or a methacryl group, and further preferably a methacryl group. preferable.
  • Sp 21 is preferably a single bond or an alkylene group having 1 to 3 carbon atoms, and more preferably a single bond.
  • n 21 is preferably 0 or 1.
  • a 21 is preferably a 1,4-phenylene group or a naphthalene-2,6-diyl group, and more preferably a 1,4-phenylene group.
  • L 21 represents a single bond, —OCH 2 —, —CH 2 O—, —C 2 H 4 —, —OC 2 H 4 O—, —COO—, —OCO—, — CH ⁇ CH—COO—, —CH ⁇ CH—OCO—, —COO—CH ⁇ CH—, —OCO—CH ⁇ CH—, —C 2 H 4 —COO—, —C 2 H 4 —OCO—, — OCO—C 2 H 4 —, —COO—C 2 H 4 —, —CH ⁇ CH—, —CF 2 O—, —OCF 2 — or —C ⁇ C— are preferred.
  • the content of the polymerizable compound represented by the general formula (II) is 0.01 to 5% by mass, but the lower limit of the content is preferably 0.02% by mass, preferably 0.03% by mass, 0 0.04% by mass, 0.05% by mass is preferable, 0.06% by mass is preferable, 0.07% by mass is preferable, 0.08% by mass is preferable, 0.09% by mass is preferable, and 0.1% by mass is preferable.
  • % By mass is preferable, 0.15% by mass is preferable, 0.2% by mass is preferable, 0.25% by mass is preferable, 0.3% by mass is preferable, 0.35% by mass is preferable, and 0.4% by mass 0.5 mass% is preferable, 0.55 mass% is preferable, and the upper limit of the content is preferably 4.5 mass%, preferably 4 mass%, preferably 3.5 mass%, and 3 mass% Is preferable, 2.5% by mass is preferable, and 2% by mass is Preferably, 1.5 mass% is preferable, 1 mass% is preferable, 0.95 mass% is preferable, 0.9 mass% is preferable, 0.85 mass% is preferable, 0.8 mass% is preferable, and 0 0.75% by mass is preferable, 0.7% by mass is preferable, 0.65% by mass is preferable, 0.6% by mass is preferable, and 0.55% by mass is preferable.
  • the upper limit of the total content with the polymerizable compounds represented by the general formula (I) and the general formula (II) is preferably 6% by mass, 5.8 mass% is preferable, 5.5 mass% is preferable, 5.2 mass% is preferable, 5 mass% is preferable, 4.8 mass% is preferable, 4.6 mass% is preferable, 4.4 mass% % Is preferable, 4.2% by mass is preferable, 4% by mass is preferable, 3.5% by mass is preferable, 3% by mass is preferable, 2.5% by mass is preferable, 2% by mass is preferable, and 1.5% by mass.
  • % Preferably 1% by weight, preferably 0.95% by weight, preferably 0.9% by weight, preferably 0.85% by weight, preferably 0.8% by weight, and preferably 0.75% by weight, 0.7% by mass is preferable, 0.65% by mass is preferable, and 0% Is preferably 6 mass%, preferably 0.55% by mass.
  • the lower limit of the total content with the polymerizable compound represented by the general formula (I) and the general formula (II) is preferably 0.02% by mass, preferably 0.03% by mass, and 0.04% by mass. Is preferable, 0.05 mass% is preferable, 0.06 mass% is preferable, 0.07 mass% is preferable, 0.08 mass% is preferable, 0.09 mass% is preferable, and 0.1 mass% is preferable.
  • 0.15% by mass is preferable, 0.2% by mass is preferable, 0.25% by mass is preferable, 0.3% by mass is preferable, 0.35% by mass is preferable, 0.4% by mass is preferable, and 0% by mass. 0.5 mass% is preferable.
  • the compound represented by the general formula (II) is preferably a compound represented by the following general formula (II-2).
  • R 101, R 102, R 103, R 104, R 105, R 106, R 107 and R 108 are each independently, P 13 -Sp 13 -, carbon atoms which may be substituted by fluorine atoms It represents an alkyl group having 1 to 18 atoms, an alkoxy group having 1 to 18 carbon atoms which may be substituted with a fluorine atom, a fluorine atom or a hydrogen atom, and R 101 , R 102 , R 103 , R 104 , R 105 , R 106 , R 107 and R 108 represent an alkoxy group having 1 to 18 carbon atoms which may be substituted with a fluorine atom, P 11 , P 12 and P 13 present are each independently represented by formulas (R-2-1) to (R-2-9)
  • R 11 , R 12 , R 13 , R 14 and R 15 each independently represents an alkyl group having 1 to 5 carbon atoms, a fluorine atom or a hydrogen atom, and m r5 , m and r7 , nr5 and r7 each independently represents 0, 1, or 2).
  • Sp 11 , Sp 12 and existing Sp 13 each independently represent a single bond or an alkylene group having 1 to 15 carbon atoms, and one —CH 2 — or not adjacent 2 in the alkylene group.
  • R 101 , R 102, R 103, R 104, R 105, R 106, R 107 and R 108 are each independently, P 13 -Sp 13 -, fluorine atom Represents an alkyl group having 1 to 18 carbon atoms which may be substituted, an alkoxy group having 1 to 18 carbon atoms which may be substituted with a fluorine atom, a fluorine atom or a hydrogen atom;
  • the number of carbon atoms of the group and the alkoxy group is 1 to 16, more preferably 1 to 10, still more preferably 1 to 8, still more preferably 1 to 6, even more preferably 1 ⁇ 4.
  • the said alkyl group and alkoxy group may be linear or branched
  • R 101 , R 102 , R 103 , R 104 , R 105 , R 106 , R 107 and R 108 is an alkoxy group having 1 to 18 carbon atoms which may be substituted with a fluorine atom.
  • the alkoxy group preferably has 1 to 15 carbon atoms, more preferably 1 to 11, more preferably 1 to 7, still more preferably 1 to 5, Even more preferably, it is 1 to 3, particularly preferably 1.
  • the alkoxy group may be linear or branched, but is preferably linear.
  • R 101 , R 102, R 103, R 104, R 105, R 106, R 107 and R 108 are each independently, P 13 -Sp 13 -, fluorine atom substituted alkoxy group from a good carbon atoms 1 also show 3, preferably represent either a fluorine atom or a hydrogen atom, P 13 -Sp 13 -, any of C 1 -C 3 alkoxy group or a hydrogen atom It is more preferable to represent these.
  • the alkoxy group having 1 to 18 carbon atoms which may be substituted with the fluorine atom is preferably a linear alkoxy group, and a methoxy group, an ethoxy group, a propoxy group or a butoxy group, or a hydrogen atom of these groups is fluorine.
  • Examples include fluorinated alkoxy groups substituted with atoms, among which methoxy group, ethoxy group, propoxy group, monofluoromethoxy group, difluoromethoxy group and trifluoromethoxy group are preferable, and methoxy group or ethoxy group is more Preferred is a methoxy group.
  • the liquid crystal composition containing a bicyclic polymerizable compound composed of a benzene ring substituted with a methoxy group reduces the occurrence of display failure due to a change in pretilt angle, and the polymerizable compound From the viewpoint that the polymerization rate can be increased.
  • a liquid crystal composition containing a monocyclic polymerizable compound substituted with a methoxy group has a slow polymerization rate of the polymerizable compound, so that the ultraviolet irradiation time required for forming a pretilt angle and reducing the residual amount of the polymerizable compound is long. Become.
  • liquid crystal composition containing a tricyclic polymerizable compound composed of a benzene ring substituted with a methoxy group tends to cause a display defect due to a change in pretilt angle, although the residual amount of the polymerizable compound is small.
  • the number of carbon atoms which may be substituted with a fluorine atom is 1 to 18 Is preferably 1 or more, 3 or less, more preferably 1 or more and 2 or less, and particularly preferably 1.
  • one of R 101 , R 102 , R 103 , R 104 , R 105 , R 106 , R 107 and R 108 may be substituted with a fluorine atom.
  • the combination of three groups of R 101 , R 104 and R 107 , the combination of three groups of R 101 , R 103 and R 106 , or R 101 , R 102 and The combination of the three groups of R 104 preferably represents an alkoxy group having 1 to 18 carbon atoms which may be substituted with a fluorine atom.
  • one of R 101 , R 102 , R 103 , R 104 , R 105 , R 106 , R 107 and R 108 may be substituted with a fluorine atom.
  • the combination of two groups of R 101 and R 104 , the combination of two groups of R 101 and R 102 , or the combination of two groups of R 101 and R 106 is It preferably represents an alkoxy group having 1 to 18 carbon atoms which may be substituted with a fluorine atom.
  • one of R 101 , R 102 , R 103 , R 104 , R 105 , R 106 , R 107 and R 108 may be substituted with a fluorine atom 1 from the aspects of the case 18 is an alkoxy group, it is preferred that an alkoxy group from R 101, or R 102 is a good carbon atoms 1 be substituted by a fluorine atom 18, R 101 or R 102 is a fluorine atom It is particularly preferable to represent an alkoxy group having 1 to 5 carbon atoms which may be substituted.
  • R 101 represents an alkoxy group having 1 to 18 carbon atoms which may be substituted with a fluorine atom, the UV absorption end becomes long, and thus light absorption can be efficiently performed during ultraviolet irradiation in the polymerization step, so that the polymerizability is high. This is preferable from the viewpoint of increasing the polymerization rate of the compound.
  • R 102 represents an alkoxy group having 1 to 18 carbon atoms which may be substituted with a fluorine atom, it is preferable from the viewpoint of enhancing solubility.
  • the number of those representing P 13 -S 13- is 0, It is preferably 1 or 2, more preferably 0 or 1, and particularly preferably 0.
  • P 11 , P 12 and P 13 may all be the same polymerizable group (formulas (R-1) to (R-9)) or different polymerizable groups.
  • P 11 , P 12 and P 13 are each independently represented by the formula (R-1), formula (R-2), formula (R-3), formula (R— 4), formula (R-5) or formula (R-7) is preferred, and in formula (R-1), formula (R-2), formula (R-3) or formula (R-4) More preferably, it is more preferably formula (R-1), and further preferably an acryl group or a methacryl group.
  • At least one of P 11 and P 12 is preferably the formula (R-1), more preferably an acrylic group or a methacryl group, still more preferably a methacryl group, and P 11 and P 12 are methacrylic groups. Particularly preferred is a group.
  • R 101 , R 102 , R 103 , R 104 , R 105 , R 106 , R 107 and R 108 may each independently be substituted with a fluorine atom.
  • P 11 and P 12 are each independently represented by the formula (R— 1) is preferable, and at least one of P 11 and P 12 is preferably a methacryl group.
  • R 11 , R 12 , R 13 , R 14 and R 15 are each independently preferably a methyl group or a hydrogen atom, and preferably a hydrogen atom when the polymerization rate of the polymerizable compound is important. In the case where importance is attached to the reduction of display defects due to changes in the pretilt angle, a methyl group is preferable.
  • Sp 11 , Sp 12 and S 13 present are preferably each independently a single bond or an alkylene group having 1 to 5 carbon atoms, and preferably a single bond. Is particularly preferred.
  • S 11 , S 12 and S 13 are single bonds, the residual amount of the polymerizable compound after ultraviolet irradiation is sufficiently small, and display defects due to changes in the pretilt angle are less likely to occur.
  • the upper limit of the total content of the polymerizable compounds represented by the general formula (I-1) and the general formula (II-2) in the entire liquid crystal composition (100% by mass) according to the present invention is 6% by mass.
  • % Is preferable, 0.7% by mass is preferable, and 0.65% by mass is preferable.
  • Ku preferably 0.6 wt%, preferably 0.55% by mass.
  • the lower limit of the total content of the polymerizable compounds represented by the general formula (I-1) and the general formula (II-2) is preferably 0.02% by mass, preferably 0.03% by mass, 0.04% by mass, 0.05% by mass is preferable, 0.06% by mass is preferable, 0.07% by mass is preferable, 0.08% by mass is preferable, 0.09% by mass is preferable, and 0.1% by mass is preferable.
  • polymerizable compound represented by the general formula (II-2) includes the general formulas (II-1-1-1) to (II-1-1-2), II-2-1) to (II-1-2-7), general formulas (II-1-3-1) to (II-1-3-9), general formula (II-1-4) 1) to (II-1-4-4), general formulas (II-1-5-1) to (II-1-5-2), general formulas (II-1-6-1) to (II- 1-6-4) and compounds represented by general formulas (II-1-7-1) to (II-1-7-6) are preferred.
  • R M1 , R M2 and R M3 each independently represent an alkyl group having 1 to 5 carbon atoms, a fluorine atom or a hydrogen atom, but an alkyl group having 1 carbon atom or hydrogen More preferably it represents an atom.
  • the liquid crystal composition containing the polymerizable compound represented by the general formula (I-1) and the polymerizable compound such as the general formula (II-1-1-1) together has excellent response performance.
  • a PSA type or PSVA type liquid crystal display element having a sufficient pretilt angle, a small residual amount of the polymerizable compound, no defects such as alignment failure and display failure due to a change in pretilt, or the like is extremely small. Since it can manufacture efficiently, it is especially preferable.
  • the compound represented by the general formula (II) according to the present invention is preferably a polymerizable compound represented by the general formula (IV).
  • R 7 and R 8 each independently represent any of the following formulas (R-1) to (R-15).
  • the 15 polymerizable functional groups represented by the above formulas (R-1) to (R-15) are cured by radical polymerization, radical addition polymerization, cationic polymerization, and anionic polymerization.
  • the formula (R-1), formula (R-2), formula (R-4), formula (R-5), formula (R-7), formula (R -11), formula (R-13) or formula (R-15) are preferred, and formula (R-1), formula (R-2), formula (R-7), formula (R-11) or formula (R-11) R-13) is more preferred, and formula (R-1) or formula (R-2) is more preferred.
  • X 1 to X 8 each independently represent a trifluoromethyl group, a fluorine atom, or a hydrogen atom.
  • R 7 and R 8 are preferably each independently a methacryl group or an acryl group.
  • the compound represented by the general formula (IV) is more preferably one or more selected from the group consisting of the formulas (IV-11) to (IV-15). 11) is particularly preferred.
  • R 7 and R 8 each independently represents a methacryl group or an acryl group.
  • the compound represented by the general formula (II) according to the present invention is preferably a compound represented by the general formula (XX-1) to the general formula (XX-13), for example,
  • the general formula (XX-7) is more preferable from 1).
  • Sp xx represents an alkylene group having 1 to 8 carbon atoms or O— (CH 2 ) s — (wherein s represents an integer of 1 to 7) And an oxygen atom is bonded to the ring).
  • the hydrogen atom in the 1,4-phenylene group is further —F, —Cl, —CF 3 , —CH 3 or the formula (R-1 ) To any one of formulas (R-15).
  • a polymerizable compound represented by the formula (M1) to the formula (M18) is preferable.
  • a polymerizable compound represented by the formula (M19) to the formula (M34) is also preferable.
  • One or two or more hydrogen atoms in the 1,4-phenylene group and naphthalene group in the formulas (M19) to (M34) are each independently -F, -Cl, -CF 3 ,- It may be substituted by CH 3 .
  • the compound represented by the general formula (II) is also preferably a polymerizable compound represented by the formula (M35) to the formula (M65).
  • the content of the polymerizable compound represented by formulas (M1) to (M65) is 0.01 to 5% by mass with respect to the entire liquid crystal composition, but the lower limit of the content Is preferably 0.02 mass%, preferably 0.03 mass%, preferably 0.04 mass%, preferably 0.05 mass%, preferably 0.06 mass%, preferably 0.07 mass%, 0.08% by mass, 0.09% by mass is preferable, 0.1% by mass is preferable, 0.15% by mass is preferable, 0.2% by mass is preferable, 0.25% by mass is preferable, and 0.3% by mass is preferable.
  • % By mass is preferable, 0.35% by mass is preferable, 0.4% by mass is preferable, 0.5% by mass is preferable, 0.55% by mass is preferable, and the upper limit of the content is preferably 4.5% by mass, 4% by mass is preferable, and 3.5% by mass is preferable. 3 mass% is preferable, 2.5 mass% is preferable, 2 mass% is preferable, 1.5 mass% is preferable, 1 mass% is preferable, 0.95 mass% is preferable, and 0.9 mass% is Preferably, 0.85 mass% is preferable, 0.8 mass% is preferable, 0.75 mass% is preferable, 0.7 mass% is preferable, 0.65 mass% is preferable, 0.6 mass% is preferable, 0.55 mass% is preferable.
  • the liquid crystal composition of the present invention may contain a normal nematic liquid crystal, smectic liquid crystal, cholesteric liquid crystal, antioxidant, ultraviolet absorber, light stabilizer or infrared absorber in addition to the above-mentioned compounds.
  • antioxidant examples include hindered phenols represented by general formula (H-1) to general formula (H-4).
  • R H1 represents an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or It represents an alkenyloxy group having 2 to 10 carbon atoms, one -CH 2 present in the radical - or non-adjacent two or more -CH 2 - are each independently -O- or -S- In addition, one or two or more hydrogen atoms present in the group may be independently substituted with a fluorine atom or a chlorine atom.
  • alkyl group having 2 to 7 carbon atoms an alkoxy group having 2 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkenyloxy group having 2 to 7 carbon atoms.
  • An alkyl group having 3 to 7 carbon atoms or an alkenyl group having 2 to 7 carbon atoms is more preferable.
  • M H4 is -CH 2 1, two or more of the alkylene group (the alkylene group having from 1 to 15 carbon atoms - as the oxygen atoms are not directly adjacent, - O—, —CO—, —COO—, —OCO— may be substituted.), —OCH 2 —, —CH 2 O—, —COO—, —OCO—, —CF 2 O—, — OCF 2 —, —CF 2 CF 2 —, —CH ⁇ CH—COO—, —CH ⁇ CH—OCO—, —COO—CH ⁇ CH—, —OCO—CH ⁇ CH—, —CH ⁇ CH—, — C ⁇ C—, a single bond, a 1,4-phenylene group (any hydrogen atom in the 1,4-phenylene group may be substituted with a fluorine atom) or a trans-1,4-cyclohexylene group.
  • an alkylene group having 1 to 14 carbon atoms In consideration of the viscosity, a large number of carbon atoms is preferable, but in consideration of the viscosity, the number of carbon atoms is preferably not too large. Therefore, the number of carbon atoms is more preferably 2 to 12, more preferably 3 to 10. 4 to 10 carbon atoms are more preferred, 5 to 10 carbon atoms are more preferred, and 6 to 10 carbon atoms are more preferred.
  • one or more non-adjacent —CH ⁇ in the 1,4-phenylene group may be substituted by —N ⁇ .
  • each hydrogen atom in the 1,4-phenylene group may be independently substituted with a fluorine atom or a chlorine atom.
  • each hydrogen atom in the 1,4-cyclohexylene group may be independently substituted with a fluorine atom or a chlorine atom.
  • the antioxidant When the antioxidant is contained in the liquid crystal composition of the present invention, 10 ppm by mass or more is preferable, 20 ppm by mass or more is preferable, and 50 ppm by mass or more is preferable.
  • the upper limit when the antioxidant is contained is 10,000 ppm by mass, preferably 1000 ppm by mass, preferably 500 ppm by mass, and preferably 100 ppm by mass.
  • the liquid crystal composition of the present invention has a dielectric anisotropy ( ⁇ ) at ⁇ 25 ° C. of ⁇ 2.0 to ⁇ 8.0, preferably ⁇ 2.0 to ⁇ 6.0, -5.0 is more preferable, and -2.5 to -5.0 is particularly preferable.
  • the liquid crystal composition of the present invention has a refractive index anisotropy ( ⁇ n) at 25 ° C. of 0.08 to 0.14, more preferably 0.09 to 0.13, and 0.09 to 0.12. Particularly preferred. More specifically, it is preferably 0.10 to 0.13 when dealing with a thin cell gap, and preferably 0.08 to 0.10 when dealing with a thick cell gap.
  • the liquid crystal composition of the present invention has a viscosity ( ⁇ ) at 20 ° C. of 10 to 50 mPa ⁇ s, preferably 10 to 45 mPa ⁇ s, preferably 10 to 40 mPa ⁇ s, and preferably 10 to 35 mPa ⁇ s.
  • ⁇ Is preferably 10 to 30 mPa ⁇ s, more preferably 10 to 25 mPa ⁇ s, and particularly preferably 10 to 22 mPa ⁇ s.
  • the liquid crystal composition of the present invention has a rotational viscosity ( ⁇ 1 ) at 25 ° C. of 50 to 160 mPa ⁇ s, preferably 55 to 160 mPa ⁇ s, and preferably 60 to 160 mPa ⁇ s.
  • ⁇ 1 rotational viscosity
  • To 150 mPa ⁇ s preferably 60 to 140 mPa ⁇ s, preferably 60 to 130 mPa ⁇ s, preferably 60 to 125 mPa ⁇ s, and 60 to 120 mPa ⁇ s. More preferably, it is 60 to 115 mPa ⁇ s, more preferably 60 to 110 mPa ⁇ s, and particularly preferably 60 to 100 mPa ⁇ s.
  • the liquid crystal composition of the present invention has a nematic phase-isotropic liquid phase transition temperature (T ni ) of 60 ° C. to 120 ° C., more preferably 70 ° C. to 100 ° C., and particularly preferably 70 ° C. to 85 ° C.
  • T ni nematic phase-isotropic liquid phase transition temperature
  • Preferred embodiments of the liquid crystal composition according to the present invention are divided into a case where the entire liquid crystal composition exhibits positive dielectric anisotropy and a case where the entire liquid crystal composition exhibits negative dielectric anisotropy. It is preferable.
  • a compound selected from a polymerizable compound represented by the general formula (I) and a compound represented by the general formula (J) It is preferable to include one or more of these, a compound represented by the general formula (L), and a polymerizable compound represented by the general formula (II-1) as necessary.
  • the upper limit of the ratio which the component comprised only from the compound represented by general formula (I), general formula (J), and general formula (L) among the whole liquid crystal composition which concerns on this invention is 100 mass%. 99 mass%, 98 mass%, 97 mass%, 96 mass%, 95 mass%, 94 mass%, 93 mass%, 92 mass%, 91 mass%, 90 mass%, 89 mass%, 88 mass%, 87 It is preferable that they are mass%, 86 mass%, 85 mass%, and 84 mass%.
  • the lower limit of the ratio which the component comprised only from the compound represented by general formula (I), general formula (J), and general formula (L) among the whole liquid crystal composition which concerns on this invention is 78.
  • Mass%, 80 mass%, 81 mass%, 83 mass%, 85 mass%, 86 mass%, 87 mass%, 88 mass%, 89 mass%, 90 mass%, 91 mass%, 92 mass%, 93 mass% 94 mass%, 95 mass%, 96 mass%, 97 mass%, 98 mass%, and 99 mass% are preferable.
  • the upper limit of the ratio which the component comprised only from the compound represented by general formula (I), general formula (M), and general formula (L) among the whole liquid crystal composition which concerns on this invention is 100 mass%. 99 mass%, 98 mass%, 97 mass%, 96 mass%, 95 mass%, 94 mass%, 93 mass%, 92 mass%, 91 mass%, 90 mass%, 89 mass%, 88 mass%, 87 It is preferable that they are mass%, 86 mass%, 85 mass%, and 84 mass%.
  • the lower limit of the ratio which the component comprised only from the compound represented by general formula (I), general formula (M), and general formula (L) among the whole liquid crystal composition which concerns on this invention is 78.
  • Mass%, 80 mass%, 81 mass%, 83 mass%, 85 mass%, 86 mass%, 87 mass%, 88 mass%, 89 mass%, 90 mass%, 91 mass%, 92 mass%, 93 mass% 94 mass%, 95 mass%, 96 mass%, 97 mass%, 98 mass%, and 99 mass% are preferable.
  • the polymerizable compound represented by the general formula (I) and the general formulas (N-1), (N-2) and One or more compounds selected from compounds represented by (N-3), a compound represented by general formula (L), and, if necessary, represented by general formula (II-1) It preferably contains a polymerizable compound.
  • the polymerizable compound represented by the general formula (I), the general formula (N-1), the general formula (N-2), and the general formula (N-3) The upper limit of the proportion of the component composed of only one compound or two or more compounds selected from the compounds represented by formula (L) is 100% by mass, 99% by mass, and 98% by mass. %, 97% by mass, 96% by mass, 95% by mass, 94% by mass, 93% by mass, 92% by mass, 91% by mass, 90% by mass, 89% by mass, 88% by mass, 87% by mass, 86% by mass, It is preferable that they are 85 mass% and 84 mass%.
  • the polymerizable compound represented by the general formula (I), the general formula (N-1), the general formula (N-2), and the general formula (N-3) The lower limit value of the proportion of the component constituted by only one compound or two or more compounds selected from the compounds represented by the general formula (L) is 78% by mass, 80% by mass, 81%, 83%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95% %, 96% by mass, 97% by mass, 98% by mass, and 99% by mass are preferable.
  • the general formula (I), the general formula (N-1-4), the general formula (N-1b), the general formula (N-1c), the general formula (N— 1d), the lower limit of the proportion of the component composed only of the compound represented by the general formula (N-1e) and the general formula (L) is 78% by mass, 80% by mass, 81% by mass, 83% by mass 85 mass%, 86 mass%, 87 mass%, 88 mass%, 89 mass%, 90 mass%, 91 mass%, 92 mass%, 93 mass%, 94 mass%, 95 mass%, 96 mass%, 97 It is preferable that they are mass%, 98 mass%, and 99 mass%.
  • the upper limit of the proportion of the component composed only of the compound is 100% by mass, 99% by mass, 98% by mass, 97% by mass, 96% by mass, 95% by mass, 94% by mass, 93% by mass, and 92% by mass.
  • the liquid crystal display device using the liquid crystal composition of the present invention has a remarkable feature of high-speed response, and in addition, a sufficient tilt angle is obtained, there is no residual monomer, or there is no problem, and the voltage Since the retention rate (VHR) is high, there are no defects such as orientation failure and display failure, or they are sufficiently suppressed.
  • VHR retention rate
  • the tilt angle and the residual monomer can be easily controlled, it is easy to optimize and reduce the energy cost for manufacturing, which is optimal for improving production efficiency and stable mass production.
  • the liquid crystal display device using the liquid crystal composition of the present invention is particularly useful for a liquid crystal display device for active matrix driving, and a liquid crystal display device for PSA mode, PSVA mode, VA mode, PS-IPS mode or PS-FFS mode Can be used.
  • the liquid crystal display element includes a first substrate and a second substrate which are arranged opposite to each other, a common electrode provided on the first substrate or the second substrate, the first substrate or the
  • the pixel electrode includes a thin film transistor provided over a second substrate and a liquid crystal layer containing a liquid crystal composition provided between the first substrate and the second substrate.
  • an alignment film for controlling the alignment direction of the liquid crystal molecules may be provided on the opposing surface side of at least one of the first substrate and / or the second substrate so as to contact the liquid crystal layer.
  • a vertical alignment film, a horizontal alignment film, or the like can be appropriately selected according to the driving mode of the liquid crystal display element, and a rubbing alignment film (for example, polyimide) or a photo-alignment film (decomposable polyimide, etc.)
  • a rubbing alignment film for example, polyimide
  • a photo-alignment film decomposable polyimide, etc.
  • the known alignment film can be used.
  • a color filter may be provided as appropriate on the first substrate or the second substrate, and a color filter may be provided on the pixel electrode or the common electrode.
  • the two substrates of the liquid crystal cell used in the liquid crystal display device according to the present invention 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 prepared 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 on 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 created.
  • a pixel electrode provided with an active element such as a TFT, a thin film diode, or a metal insulator metal specific resistance element may be provided on the substrate.
  • first substrate and the second substrate face each other so that the common electrode and the pixel electrode layer are inside.
  • the distance between the first substrate and the second substrate may be adjusted via a spacer.
  • it is preferable to adjust so that the thickness of the obtained light control layer is 1 to 100 ⁇ m. More preferably, the thickness is 1.5 to 10 ⁇ m.
  • a 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 glass particles, plastic particles, alumina particles, and a photoresist material.
  • 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 liquid crystal composition between the two substrates.
  • an appropriate polymerization rate is desirable in order to obtain good alignment performance of the liquid crystal.
  • a method of polymerizing by irradiating one or in combination or sequentially is preferable.
  • ultraviolet rays When ultraviolet rays are used, a polarized light source or a non-polarized light source may be used.
  • the polymerization is performed with the liquid crystal composition sandwiched between two substrates, at least the substrate on the irradiation surface side must be given appropriate transparency to the active energy rays.
  • 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 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. That is, the pretilt angle of the liquid crystal display element can be controlled by the applied voltage. In a PSVA mode liquid crystal display element, it is preferable to control the pretilt angle from 80 degrees to 89.9 degrees from the viewpoint of alignment stability and contrast.
  • the temperature at the time of irradiation with active energy rays such as ultraviolet rays or electron beams used for polymerizing the polymerizable compound contained in the liquid crystal composition of the present invention is not particularly limited.
  • the liquid crystal composition of the present invention when applied to a liquid crystal display element including a substrate having an alignment film, it is preferably within a temperature range in which the liquid crystal state of the liquid crystal composition is maintained.
  • Polymerization is preferably performed at a temperature close to room temperature, that is, typically 15 to 35 ° C.
  • the liquid crystal composition of the present invention when applied to a liquid crystal display element having a substrate that does not have an alignment film, the irradiation time applied to the liquid crystal display element having a substrate having the alignment film described above.
  • a temperature range wider than the temperature range may be used.
  • 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.
  • the intensity of the irradiated ultraviolet light is preferably 0.1 mW / cm 2 to 120 W / cm 2, more preferably 2 mW / cm 2 to 50 W / cm 2 .
  • 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 irradiation with ultraviolet rays is appropriately selected depending on the intensity of ultraviolet rays to be irradiated, but is preferably 10 seconds to 3600 seconds, and more preferably 10 seconds to 600 seconds.
  • the measured characteristics are as follows.
  • T ni Nematic phase-isotropic liquid phase transition temperature (° C.) ⁇ n: refractive index anisotropy at 25 ° C. ⁇ 1 : rotational viscosity at 25 ° C. (mPa ⁇ s) ⁇ : Dielectric anisotropy at 25 ° C. (Liquid crystal display device manufacturing method and evaluation method)
  • a liquid crystal composition containing a polymerizable compound is coated with a polyimide alignment film that induces vertical alignment at a cell gap of 3.5 ⁇ m, and then vacuum injection is performed on a liquid crystal cell including a substrate with ITO that is rubbed with the polyimide alignment film. Injected.
  • JALS2096 manufactured by JSR Corporation was used as a material for forming a vertical alignment film.
  • the pretilt angle of the liquid crystal display element before irradiation with ultraviolet rays was measured and set as the pretilt angle (initial).
  • a voltage of 24 V was applied at a frequency of 100 Hz, and a high pressure mercury lamp was used in a state where liquid crystal molecules were aligned in the horizontal direction with respect to the substrate of the liquid crystal cell.
  • the illuminance measured under the condition of the center wavelength of 365 nm was adjusted so as to be 100 mW / cm 2 and the irradiation time was 120 seconds, and ultraviolet rays with an integrated light amount of 12 J / cm 2 were irradiated.
  • the ultraviolet irradiation condition was set as irradiation condition 1. Under this irradiation condition 1, a pretilt angle is given to the liquid crystal molecules in the liquid crystal cell. And the pretilt angle of the liquid crystal display element was measured after ultraviolet irradiation, and it was set as the pretilt angle (after UV). In the present invention, the angle calculated by the rotational analyzer method was measured as the pretilt angle. The pretilt angle was measured using ELSICON manufactured by Toyo Technica. A larger pretilt angle change amount, which is the difference between the pretilt angle (initial) and the pretilt angle (after UV), can form a sufficient pretilt angle in a shorter time. Therefore, when the amount of change in the pretilt angle is large, the ultraviolet irradiation time can be shortened and the time required for the manufacturing process can be shortened.
  • This test is for checking the amount of change in the pretilt angle.
  • Examples 1 and 2 Comparative Examples 1, 2, 3, 4, 5
  • the polymerizable compound described in Table 1 below is mixed in an amount of 0.46 parts by mass with respect to 99.6 parts by mass of the liquid crystal composition (LC-001) described in Table 1 below.
  • a liquid crystal composition containing the compound was prepared.
  • LC-R1 (Comparative Example 1) in which 0.4 part by mass of the polymerizable compound (RM-R1) is added to 99.6 parts by mass of the liquid crystal composition (LC-001)
  • the liquid crystal composition LC-R2 (Comparative Example 2), in which 0.4 part by mass of the polymerizable compound (RM-R2) was added to 99.6 parts by mass of (LC-001)
  • the liquid crystal composition (LC-001) 99.6 Polymerizable with respect to 99.6 parts by mass of LC-R3 (Comparative Example 3)
  • liquid crystal composition (LC-001) in which 0.4 parts by mass of the polymerizable compound (RM-R3) was added to parts by mass.
  • the polymerizable compound (RM-R5) was added to 0 to 99.6 parts by mass of LC-R4 (Comparative Example 4) and the liquid crystal composition (LC-001) to which 0.4 part by mass of the compound (RM-R4) was added. .4 parts by mass of LC-R5 (Comparative Example 5), liquid crystal composition (LC-001) 99.6 parts by mass
  • the polymerizable compound (RM-) was added to 99.6 parts by mass of LC-1 (Example 1) and the liquid crystal composition (LC-001) to which 0.4 parts by mass of the polymerizable compound (RM-1) was added.
  • a liquid crystal composition of LC-2 (Example 2) to which 0.4 part by mass of 2) was added was prepared, and each physical property value was measured. Table 1 shows the structure of the liquid crystal composition and the results of its physical properties.
  • the pretilt angle change amount of the polymerizable compound of Comparative Example 1 was 4.0 [°]
  • the pretilt angle change of Comparative Example 2 was The amount of change was 15.0 [°]
  • the amount of change in pretilt angle of Comparative Example 3 was 10.1 [°]
  • the amount of change in pretilt angle of Comparative Example 4 was 12.5 [°].
  • the pretilt angle change amount of Example 1 was 37.4 [°]
  • the pretilt angle change amount of Example 2 (LC-2) was 23.5 [°].
  • a pretilt angle was formed by short-time ultraviolet irradiation. Since precipitation was observed in Comparative Example 5 (LC-R5), it was confirmed that RM-R5 has low solubility.
  • the amount of change in the pretilt angle in Examples 1-2 (LC-1 and LC-2), which are liquid crystal compositions containing the polymerizable compound represented by the general formula (I) of the present invention, is It was confirmed that it was sufficiently large, and that a sufficient pretilt angle was formed by less UV irradiation. On the other hand, it was confirmed that the amount of change in pretilt angle in Comparative Examples 1 to 5 (LC-R1, LC-R2, LC-R3, LC-R4, and LC-R5) was small, and the pretilt angle was formed. The result was that more UV irradiation was required.
  • a liquid crystal composition containing a polymerizable compound was prepared by mixing 0.4 part by mass of a polymerizable liquid crystal compound with respect to 99.6 parts by mass of the liquid crystal composition described in Table 2 below. Specifically, 0.3 part by mass of the polymerizable compound (RM-1) and 0.1 part by mass of the polymerizable compound (RM-R1) with respect to 99.6 parts by mass of the liquid crystal composition (LC-001).
  • LC-4 (Example 3), LC-4 (Example 3) and LC-4 (Example 1) added with 0.4 parts by mass of the polymerizable compound (RM-1) to 99.6 parts by mass of the liquid crystal composition (LC-002).
  • Example 4 LC-5 (Example 5) in which 0.4 part by mass of the polymerizable compound (RM-1) was added to 99.6 parts by mass of the liquid crystal composition (LC-003), the liquid crystal composition ( LC-004)
  • a liquid crystal composition of LC-6 (Example 6) was prepared by adding 0.4 part by mass of the polymerizable compound (RM-1) to 99.6 parts by mass. It was measured. Tables 2, 3, 4, and 5 show the composition of the liquid crystal composition and the results of its physical properties.
  • Example 3 A liquid crystal composition containing a polymerizable compound was taken as Example 3.
  • a liquid crystal composition containing a polymerizable compound obtained by adding 0.4 parts by weight of the compound represented by the formula (RM-1) to 99.6 parts by weight of the liquid crystal composition LC-002 was taken as Example 4. .
  • a liquid crystal composition containing a polymerizable compound obtained by adding 0.4 parts by weight of the compound represented by the formula (RM-1) to 99.6 parts by weight of the liquid crystal composition LC-003 was taken as Example 5. .
  • a liquid crystal composition containing a polymerizable compound obtained by adding 0.4 parts by weight of the compound represented by the formula (RM-1) to 99.6 parts by weight of the liquid crystal composition LC-004 was taken as Example 6. .
  • Example 3 Example 4, Example 5 and Example 6, as well as Example 1 to Example 2, it was confirmed that the amount of change in the pretilt angle was sufficiently large, and it was sufficient with less UV irradiation. It was confirmed that a pretilt angle was formed.
  • Example 7 Example 7, Example 8, and Example 9
  • a polymerizable liquid crystal compound was mixed with 99.6 parts by mass of the liquid crystal compositions (LC-005, LC-006, LC-007) described in Tables 6 and 7 below.
  • a liquid crystal composition containing a polymerizable compound was prepared. Specifically, Example 7 in which 0.4 parts by mass of the polymerizable compound (RM-1) was added to 99.6 parts by mass of the liquid crystal composition (LC-005, LC-006, LC-007).
  • the liquid crystal compositions of Example 8 and Example 9 were prepared and their physical properties were measured. Tables 6 and 7 show the composition of the liquid crystal composition and the results of its physical properties.
  • a liquid crystal composition containing a polymerizable compound obtained by adding 0.4 parts by weight of the compound represented by the formula (RM-1) to 99.6 parts by weight of the liquid crystal composition LC-005 was taken as Example 7. .
  • a liquid crystal composition containing a polymerizable compound obtained by adding 0.4 parts by weight of the compound represented by the formula (RM-1) to 99.6 parts by weight of the liquid crystal composition LC-006 was taken as Example 8. .
  • a liquid crystal composition containing a polymerizable compound obtained by adding 0.4 parts by weight of the compound represented by the formula (RM-1) to 99.6 parts by weight of the liquid crystal composition LC-007 was determined as Example 9. .
  • Example 7 Example 8, and Example 9, as in Examples 1 to 6, it was confirmed that the amount of change in pretilt angle was sufficiently large, and a sufficient pretilt angle was formed by less UV irradiation. I was able to confirm that
  • Example 10 Example 11 and Example 12
  • a polymerizable liquid crystal compound was mixed with 99.6 parts by mass of the liquid crystal compositions (LC-008, LC-009, LC-010) described in Table 8 and Table 9 below.
  • a liquid crystal composition containing a polymerizable compound was prepared. Specifically, Example 10 in which 0.4 parts by mass of the polymerizable compound (RM-1) was added to 99.6 parts by mass of the liquid crystal composition (LC-008, LC-009, LC-010).
  • the liquid crystal compositions of Example 11 and Example 12 were prepared and their physical properties were measured. Tables 8 and 9 show the composition of the liquid crystal composition and the results of its physical properties.
  • a liquid crystal composition containing a polymerizable compound obtained by adding 0.4 parts by weight of the compound represented by the formula (RM-1) to 99.6 parts by weight of the liquid crystal composition LC-008 was taken as Example 10. .
  • a liquid crystal composition containing a polymerizable compound obtained by adding 0.4 parts by weight of the compound represented by the formula (RM-1) to 99.6 parts by weight of the liquid crystal composition LC-009 was defined as Example 11. .
  • a liquid crystal composition containing a polymerizable compound obtained by adding 0.4 parts by weight of the compound represented by the formula (RM-1) to 99.6 parts by weight of the liquid crystal composition LC-010 was defined as Example 12. .
  • Example 10 Example 11, and Example 12, as in Example 1 to Example 9, it was confirmed that the amount of change in the pretilt angle was sufficiently large, and a sufficient pretilt angle was formed by less UV irradiation. I was able to confirm that

Abstract

Le problème abordé par la présente invention est de pourvoir à : une composition de cristaux liquides contenant un composé polymérisable qui permet de former un angle de pré-inclinaison suffisant en l'espace d'un court laps de temps et qui sert à obtenir un élément d'affichage à cristaux liquides de type PSA ou PSVA très fiable; et un élément d'affichage à cristaux liquides utilisant ladite composition. La solution selon l'invention porte sur une composition de cristaux liquides contenant : un ou plusieurs types de composés polymérisables représentés par la formule générale (I); et un ou plusieurs types de composés choisis dans le groupe constitué par les composés représentés par la formule générale (N-1) et les composés représentés par la formule générale (J).
PCT/JP2017/042976 2016-12-26 2017-11-30 Composition de cristaux liquides et élément d'affichage à cristaux liquides WO2018123417A1 (fr)

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CN110872519A (zh) * 2018-09-03 2020-03-10 Dic株式会社 液晶组合物和液晶显示元件
KR20200056299A (ko) 2018-11-14 2020-05-22 디아이씨 가부시끼가이샤 액정 조성물 및 액정 표시 소자

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CN110872519A (zh) * 2018-09-03 2020-03-10 Dic株式会社 液晶组合物和液晶显示元件
KR20200056299A (ko) 2018-11-14 2020-05-22 디아이씨 가부시끼가이샤 액정 조성물 및 액정 표시 소자

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