WO2021002205A1 - Composition à cristaux liquides et élément d'affichage à cristaux liquides - Google Patents

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

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WO2021002205A1
WO2021002205A1 PCT/JP2020/023885 JP2020023885W WO2021002205A1 WO 2021002205 A1 WO2021002205 A1 WO 2021002205A1 JP 2020023885 W JP2020023885 W JP 2020023885W WO 2021002205 A1 WO2021002205 A1 WO 2021002205A1
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liquid crystal
preferable
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present
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純一 間宮
平田　真一
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Dic株式会社
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    • 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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    • C09K19/06—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
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    • 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
    • C09K19/16—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon double bonds, e.g. stilbenes
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    • 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
    • C09K19/18—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon triple bonds, e.g. tolans
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    • C09K19/00—Liquid crystal materials
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    • 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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    • C09K19/04—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
    • C09K19/24—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing nitrogen-to-nitrogen bonds
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    • 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
    • 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
    • C09K19/32—Non-steroidal liquid crystal compounds containing condensed ring systems, i.e. fused, bridged or spiro ring systems
    • 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
    • C—CHEMISTRY; METALLURGY
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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 and a liquid crystal display device using the same. More specifically, the present invention relates to a so-called n-type liquid crystal composition in which the dielectric anisotropy ( ⁇ ) shows a negative value.
  • Liquid crystal display elements are used in various household electric devices, industrial measuring devices, automobile panels, mobile phones, smartphones, notebook PCs, tablet PCs, televisions, etc., including clocks and calculators.
  • Typical liquid crystal display methods are TN (twisted nematic) type, STN (super twisted nematic) type, GH (guest host) type, IPS (inplane switching) type, and FFS (fringe field switching) type.
  • OCB optical compensation birefringence
  • ECB voltage controlled birefringence
  • VA vertical orientation
  • CSH color super homeotropic
  • FLC ferrroelectric liquid crystal
  • Examples of the drive method include static drive, multiplex drive, simple matrix method, and active matrix (AM) method driven by TFT (thin film transistor), TFD (thin film diode), and the like.
  • IPS type, FFS type, ECB type, VA type, CSH type and the like have advantageous characteristics when a liquid crystal composition having a negative dielectric anisotropy value (n type liquid crystal composition) is used. Is known to show.
  • the display method using the n-type liquid crystal composition is typified by the PSA (Polymer Sustained Organic) type or the PSVA (Polymer Stabili zed Vertival Animation) type in which the orientation is controlled by polymerizing a VA type or a polymerizable compound in the liquid crystal phase.
  • PSA Polymer Sustained Organic
  • PSVA Polymer Stabili zed Vertival Animation
  • There are a vertical orientation method and a horizontal orientation method typified by IPS type and FFS type.
  • the vertical orientation method is characterized by a wide viewing angle, high transmittance, high contrast, and fast response speed, and is mainly used for large display elements such as TVs and monitors.
  • the horizontal orientation method is used in mobile devices such as smartphones and tablet PCs from the viewpoints of wide viewing angle, high transmittance, low power consumption and optimality with touch panels, and is also used in LCD TVs. Is also progressing.
  • the PSA type or PSVA type liquid crystal display device forms a polymer structure in a cell in order to control the pretilt angle of liquid crystal molecules, and among the features of the vertical orientation method, high-speed response and high contrast are known. ing.
  • the problems to be solved by the present invention are high-speed response, low drive voltage, and good low temperature when used in liquid crystal devices such as liquid crystal TVs, while satisfying various characteristics required for n-type liquid crystal compositions in which ⁇ is negative. It is an object of the present invention to provide a liquid crystal composition capable of achieving storage stability, a wide viewing angle, and high transmittance, and a liquid crystal display element using the same.
  • the present inventor has found that the above problems can be solved by examining various liquid crystal compounds and adjusting their selections, and has completed the present invention.
  • the present invention relates to a liquid crystal composition containing one or more compounds represented by the general formula (i) and one or more compounds represented by the general formula (ii).
  • R i1 represents an alkyl group having 1 to 8 carbon atoms.
  • R i2 represents an alkoxy group having 1 to 8 carbon atoms.
  • Rii1 represents an alkenyl group having 2 to 8 carbon atoms.
  • n ii1 and n ii2 each independently represent an integer of 0 to 3, but n ii1 + n ii2 is 1, 2 or 3. )
  • the liquid crystal composition of the present invention satisfies various characteristics required for an n-type liquid crystal composition having a negative ⁇ , and has a high-speed response, a low drive voltage, and good low-temperature storage stability when used in a liquid crystal device such as a liquid crystal TV.
  • a wide viewing angle and a high transmission rate can be achieved, and the liquid crystal display element of the present invention using the liquid crystal composition is useful for a display element such as a liquid crystal TV or a monitor.
  • the liquid crystal composition of the present invention contains one or more compounds represented by the general formula (i) and one or more compounds represented by the general formula (ii).
  • the compound represented by the formula (i) may be referred to as “compound (i)”.
  • the same may apply to compounds represented by other formulas.
  • the compound represented by the following formula (i) corresponds to a dielectrically neutral compound (a compound having ⁇ of -2 to 2).
  • R i1 is an alkyl group having 1 to 8 carbon atoms, preferably an alkyl group having 1 to 5 carbon atoms, more preferably an ethyl group, a propyl group or a pentyl group, and an ethyl group or propyl group. Groups are more preferred, and propyl groups are particularly preferred.
  • R i2 is an alkoxy group having 1 to 8 carbon atoms, preferably an alkoxy group having 1 to 5 carbon atoms, more preferably a methoxy group, an ethoxy group or a propoxy group, and a methoxy group or an ethoxy group.
  • the group is more preferable, and the methoxy group is particularly preferable.
  • the compounds represented by the following formulas (i-1) to (i-4) are preferable, and the compounds represented by the following formulas (i-3) or (i-4) are preferable. Is more preferable, and the compound represented by the formula (i-3) is particularly preferable.
  • one type may be used alone or two or more types may be used in combination, but it is preferable to use only one type from the viewpoint of ease of procurement.
  • the lower limit of the preferable content of the compound represented by the formula (i) with respect to the total amount of the liquid crystal composition of the present invention is 3%, 5%, 7% and 10%. It is 12%, 15%, 18%, 20%, and 22%.
  • the preferred upper limit of content is 40%, 35%, 30%, 25%, 20%, 18%, 16%, 15%, 12%. And it is 10%.
  • Compound (ii) The compound represented by the following formula (ii) corresponds to a dielectrically negative compound (the sign of ⁇ is negative and its absolute value is larger than 2).
  • R ii1 is an alkenyl group having 2 to 8 carbon atoms, preferably an alkenyl group having 2 to 5 carbon atoms, and more preferably an alkenyl group having 2 to 3 carbon atoms.
  • the alkenyl group is preferably selected from the groups represented by any of the formulas (R1) to (R5).
  • the black dots in each formula represent the carbon atom in the existing Aii1 or the 2,3-difluoro-1,4-phenylene group in the formula.
  • a ii1 and A ii2 are aromatic independently when it is desired to increase the [Delta] n, is preferably to improve the response speed is an aliphatic, 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 is preferable to represent a diyl group, a decahydronaphthalene-2,6-diyl group or a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, and more preferably to represent the following structure.
  • Z ii1 is -CH 2 O-, preferably combined Z ii2 is -CH 2 O-or a single bond, Z ii1 is -CH 2 O-, Z ii2 is a single bond in combination Is more preferable.
  • n ii1 and n ii2 each independently an integer of 0 ⁇ 3, n ii1 + n ii2 is 1, 2 or 3. n ii1 + n ii2 is 1 or 2 is more preferred.
  • the combination n N11 is 1 n ii2 is 0, the combination n ii1 is 2 n ii2 is 0, the combination n ii1 is 1 n ii2 is 1, the n ii1 preferably the combination 2 a and n ii2 is 1, n ii1 combinations 1 a and n ii2 is 0, or n ii1 is n ii2 is 2 combination and more preferably 0.
  • Examples of the compound represented by the formula (ii) include compounds represented by the following formulas (ii-1) to (ii-4).
  • R ii11 to R ii14 and R ii21 to R ii24 have the same meanings as R ii1 and R ii2 in the formula (ii), respectively, and n ii11 , nii22 and nii13 independently represent 1 or 2, respectively. .
  • the compound represented by the formula (ii-1) or (ii-2) is preferable, and the compound represented by the formula (ii-1) is particularly preferable.
  • one kind may be used alone or two or more kinds may be used in combination, but it is preferable to use only one kind from the viewpoint of ease of procurement.
  • the lower limit of the preferable content of the compound represented by the formula (ii) with respect to the total amount of the liquid crystal composition of the present invention is 2%, 3%, 4%, 5%. It is 6%, 8%, 10%, and 15%.
  • the preferred upper limit of content is 40%, 35%, 30%, 25%, 20%, 18%, 15%, 13%, 12%. It is 10% and 8%. (Other compounds) -Compound (N-1)
  • the liquid crystal composition of the present invention preferably further contains one or more compounds represented by the general formula (N-1).
  • R N11 and R N12 are ⁇ 1 -C independently 8, one or non-adjacent two or more -CH 2 in the alkyl group - is independently It may be replaced by -C ⁇ C-, -O-, -CO-, -COO- or -OCO-.
  • (D) Represents a group selected from the group consisting of 1,4-cyclohexenylene groups, and the above groups (a), group (b), group (c) and group (d) are independently cyano groups. It may be replaced with a fluorine atom or a chlorine atom.
  • n N11 and n N12 each represent independently an integer of 0 ⁇ 3
  • n N11 + n N12 is 1, 2 or 3, if A N11 ⁇ A N32, Z N11 ⁇ Z N32 there is a plurality, They may be the same or different.
  • the compound represented by the formula (N-1) is preferably a compound having a negative ⁇ and an absolute value larger than 3.
  • RN11 and RN12 are each independently preferably an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms, and an alkyl group having 1 to 5 carbon atoms.
  • an alkoxy group having 1 to 5 carbon atoms is more preferable, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms is further preferable, and an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms is preferable.
  • Alkoxy groups 1 to 4 are particularly preferred.
  • the ring structure to which it is bonded is a phenyl group (aromatic)
  • a linear alkyl group having 1 to 5 carbon atoms or a linear alkoxy group having 1 to 4 carbon atoms is preferable.
  • a saturated ring structure such as cyclohexane, pyran and dioxane
  • a linear alkyl group having 1 to 5 carbon atoms or a linear alkoxy having 1 to 4 carbon atoms are preferred.
  • the total of carbon atoms and oxygen atoms, if present is preferably 5 or less, and is preferably linear.
  • a N11 and AN12 are preferably aromatic when it is required to increase ⁇ n independently, and are preferably aliphatic in order to improve the response rate, and trans-1,4.
  • 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 single bond is more preferred, and -CH 2 O- or single bond is particularly preferred.
  • n N11 + n N12 is preferably 1 or 2, n N11 is 1 and n N12 is 0, n N11 is 2 and n N12 is 0, n N11 is 1 and n N12 is 1. A combination, in which n N11 is 2 and n N12 is 1, is preferred.
  • 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%, and 30%. , 40%, 50%, 55%, 60%, 65%, 70%, 75%, 80%.
  • the preferred upper limit of content is 95%, 85%, 75%, 65%, 55%, 45%, 35%, 25%, 20%. Is.
  • the above lower limit value is low and the upper limit value is low. Further, when a composition having a high Tni of the composition of the present invention and good temperature stability is required, it is preferable that the above lower limit value is low and the upper limit value is low. Further, when it is desired to increase the dielectric anisotropy in order to keep the drive voltage low, it is preferable that the above lower limit value is high and the upper limit value is high.
  • Examples of the compound represented by the formula (N-1) include a group of compounds represented by the following general formulas (N-1a) to (N-1g), and (N-1c) and / or (N). -1d) is preferable.
  • R N11 and R N12 are as defined R N11 and R N12 in the general formula (N-1), n Na11 represents 0 or 1, n NB11 is 1 or 2, n NC11 is Represents 0 or 1, n Nd11 represents 1 or 2, n Ne11 represents 1 or 2, n Nf12 represents 1 or 2, n Ng 11 represents 1 or 2, and A Ne 11 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.
  • Z Ne11 represents a single bond or ethylene, but at least one present in the molecule represents ethylene, and multiple A Ne11 , Z Ne11 , and / or present in the molecule.
  • a Ng 11 may be the same or different.
  • the compound represented by the general formula (N-1) may be a compound selected from the compound group represented by the general formulas (N-1-1) to (N-2-1). preferable.
  • the compound represented by the general formula (N-1-1) is the following compound.
  • RN111 preferably has an alkyl group having 1 to 5 carbon atoms, and preferably a propyl group or a pentyl group.
  • RN112 is preferably an alkyl group having 1 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, but can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set low. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • 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% and 15%. , 17%, 20%, 23%, 25%, 27%, 30%, 33%, 35%.
  • the preferred upper limit of the content is 50%, 40%, 38%, 35%, 33%, 30%, 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%, and 3%.
  • the compound represented by the general formula (N-1-1) is a compound selected from the compound group represented by the formulas (N-1-1.1) to (N-1-1.14). It is preferably a compound represented by the formulas (N-1-1.1) to (N-1-1.4), and the formulas (N-1-1.1) and the formula (N-1-1.4) are preferable.
  • the compound represented by -1-1.3) is preferable.
  • the compounds represented by the formulas (N-1-1.1) to (N-1-1.14) can be used alone or in combination, but the composition of the present invention can be used.
  • the lower limit of the preferred content of the single or these compounds relative to the total amount is 5%, 10%, 13%, 15%, 17%, 20%, 23%. , 25%, 27%, 30%, 33%, 35%.
  • the preferred upper limit of the content is 50%, 40%, 38%, 35%, 33%, 30%, 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%, and 3%.
  • the compound represented by the general formula (N-1-2) is the following compound.
  • RN121 is preferably an alkyl group having 1 to 5 carbon atoms, 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 or an alkoxy group having 1 to 4 carbon atoms, and preferably a methyl group, a propyl group, a methoxy group, an ethoxy group or a propoxy group.
  • the compound represented by the general formula (N-1-2) can be used alone, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set low, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-2) with respect to the total amount of the composition of the present invention is 5%, 7%, 10% and 13%. , 15%, 17%, 20%, 23%, 25%, 27%, 30%, 33%, 35%, 37%. It is 40% and 42%.
  • the preferred upper limit of the content is 50%, 48%, 45%, 43%, 40%, 38%, 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 compound group represented by the formulas (N-1-2.1) to (N-1-2.13). It is preferable that there are formulas (N-1-2.3) to formulas (N-1-2.7), formulas (N-1-2.10), formulas (N-1-2.11) and formulas. It is preferably a compound represented by (N-1-2.13), and when the improvement of ⁇ is emphasized, the formulas (N-1-2.3) to (N-1-2.7) are used. in the compounds represented, when emphasizing improvements in T NI formula (N-1-2.10), formula (N-1-2.11) and formula (N-1-2.13) It is preferably a compound represented by.
  • the compounds represented by the formulas (N-1-2.1) to (N-1-2.13) can be used alone or in combination, but the composition of the present invention can be used.
  • the lower limit of the preferred content of these compounds alone or of these compounds relative to the total amount of is 5%, 10%, 13%, 15%, 17%, 20%, 23. %, 25%, 27%, 30%, 33%, 35%.
  • the preferred upper limit of the content is 50%, 40%, 38%, 35%, 33%, 30%, 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%, and 3%.
  • the compound represented by the general formula (N-1-3) is the following compound.
  • R N131 and R N132 each independently represents the same meaning as R N11 and R N12 in the general formula (N-1).
  • the RN131 preferably has an alkyl group having 1 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group.
  • RN132 is preferably an alkyl group having 1 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-1-3) can be used alone, but can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-3) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-3) is a compound selected from the compound group represented by the formulas (N-1-3.1) to (N-1-3.11). It is preferable that the compound is represented by the formulas (N-1-3.1) to (N-1-3.7), and the compounds are preferably represented by the formulas (N-1-3.1) and (N-1-3.7).
  • the compounds represented by -1-3.2), formula (N-1-3.3), formula (N-1-3.4) and formula (N-1-3.6) are preferable.
  • the compounds represented by the formulas (N-1-3.1) to (N-1-3.4) and (N-1-3.6) may be used alone or in combination. It is also possible, but the combination of the formula (N-1-3.1) and the formula (N-1-3.2), the formula (N-1-3.3), the formula (N-1-3.4) ) And a combination of 2 or 3 selected from the formula (N-1-3.6) are preferable.
  • the lower limit of the preferred content of the composition alone or of these compounds relative to the total amount of the compositions of the present invention is 5%, 8%, 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%.
  • 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-1).
  • R N141 and R N142 are each independently preferably an alkyl group or an alkoxy group having 1 to 4 carbon atoms having 1 to 5 carbon atoms, a methyl group, a propyl group or an ethoxy group.
  • the compound represented by the general formula (N-1-4) can be used alone, but can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set low. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-4) with respect to the total amount of the composition of the present invention is 3%, 5%, 7% and 10%. It is 13%, it is 15%, it is 17%, and it is 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%, 8%.
  • the compound represented by the general formula (N-1-4) is a compound selected from the compound group represented by the formulas (N-1-4.1) to (N-1-4.14). It is preferable that the compound is represented by the formulas (N-1-4.1) to (N-1-4.4), and the compounds are preferably represented by the formulas (N-1-4.1) and (N-1-4.4).
  • the compounds represented by -1-4.2) and the formula (N-1-4.4) are preferable.
  • the compounds represented by the formulas (N-1-4.1) to (N-1-4.14) can be used alone or in combination, but the composition of the present invention can be used.
  • the lower limit of the preferred content of these compounds alone or of these compounds relative to the total amount is 3%, 5%, 7%, 10%, 13%, 15%, 17%. It is 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%, 8%.
  • the compound represented by the general formula (N-1-5) is the following compound.
  • R N151 and R N152 each independently represents the same meaning as R N11 and R N12 in the general formula (N-1).
  • RN151 and RN152 are each independently preferably an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, preferably an ethyl group, a propyl group or a butyl group.
  • the compound represented by the general formula (N-1-5) can be used alone, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set low, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-5) with respect to the total amount of the composition of the present invention is 5%, 8%, 10% and 13%. It is 15%, it is 17%, and it is 20%.
  • the preferred upper limit of the content is 35%, 33%, 30%, 28%, 25%, 23%, 20% with respect to the total amount of the composition of the present invention. %, 18%, 15%, 13%.
  • the compound represented by the general formula (N-1-5) is a compound selected from the compound group represented by the formulas (N-1-5.1) to (N-1-5.6). It is preferable that the compound is represented by the formula (N-1-5.1), the formula (N-1-5.2) and the formula (N-1-5.4).
  • the compounds represented by the formulas (N-1-5.1), (N-1-5.2) and (N-1-5.4) may be used alone or in combination.
  • the lower limit of the preferable content of the composition alone or of these compounds with respect to the total amount of the composition of the present invention is 5%, 8%, 10%, 13%, and the like. It is 15%, 17%, and 20%.
  • the preferred upper limit of the content is 35%, 33%, 30%, 28%, 25%, 23%, 20% with respect to the total amount of the composition of the present invention. %, 18%, 15%, 13%.
  • the compound represented by the general formula (N-1-10) is the following compound.
  • R N1101 and R N1102 independently represents the same meaning as R N11 and R N12 in the general formula (N-1).
  • RN1101 is preferably an alkyl group having 1 to 5 carbon atoms, preferably an ethyl group, a propyl group or a butyl group.
  • RN1102 is preferably an alkyl group having 1 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, but can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set low. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-10) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-10) is a compound selected from the compound group represented by the formulas (N-1-10.1) to (N-1-10.5).
  • the compounds are preferably present, and the compounds represented by the formulas (N-1-10.1) and (N-1-10.2) are particularly preferable.
  • the compounds represented by the formulas (N-1-10.1) and (N-1-10.2) can be used alone or in combination, but the compositions of the present invention can be used.
  • the lower limit of the preferred content of these compounds alone or of these compounds relative to the total amount of 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%, 13%.
  • the compound represented by the general formula (N-1-11) is the following compound.
  • RN1111 is preferably an alkyl group having 1 to 5 carbon atoms, preferably a methyl group, an ethyl group, a propyl group or a butyl group.
  • RN1112 is preferably an alkyl group having 1 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, but can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set low, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-11) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-11) is a compound selected from the compound group represented by the formulas (N-1-11.1) to (N-1-11.6). It is preferable that the compound is represented by the formulas (N-1-11.1) to (N-1-11.4), and the formulas (N-1-11.2 and N-) are preferable. The compound represented by 1-11.4) is preferable.
  • the compounds represented by the formulas (N-1-11.2) and (N-1-11.4) can be used alone or in combination, but the compositions of the present invention can be used.
  • the lower limit of the preferred content of these compounds alone or of these compounds relative to the total amount of 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%, 13%.
  • the compound represented by the general formula (N-1-12) is the following compound.
  • RN1121 preferably has an alkyl group having 1 to 5 carbon atoms, and preferably an ethyl group or a propyl group.
  • RN1122 is preferably an alkyl group having 1 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set low. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-12) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-13) is the following compound.
  • RN1131 is preferably an alkyl group having 1 to 5 carbon atoms, preferably an ethyl group, a propyl group or a butyl group.
  • RN1132 is preferably an alkyl group having 1 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-13) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-14) is the following compound.
  • R N1141 and R N1142 independently represents the same meaning as R N11 and R N12 in the general formula (N-1).
  • RN1141 is preferably an alkyl group having 1 to 5 carbon atoms, preferably an ethyl group, a propyl group or a butyl group.
  • RN1142 is preferably an alkyl group having 1 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set low. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-14) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-15) is the following compound.
  • RN1151 is preferably an alkyl group having 1 to 5 carbon atoms, preferably an ethyl group, a propyl group or a butyl group.
  • RN1152 is preferably an alkyl group having 1 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-15) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-16) is the following compound.
  • R N1161 and R N1162 independently represents the same meaning as R N11 and R N12 in the general formula (N-1).
  • RN1161 is preferably an alkyl group having 1 to 5 carbon atoms, preferably an ethyl group, a propyl group or a butyl group.
  • RN1162 is preferably an alkyl group having 1 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-16) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-17) is the following compound.
  • R N1171 and R N1172 independently represents the same meaning as R N11 and R N12 in the general formula (N-1).
  • RN1171 is preferably an alkyl group having 1 to 5 carbon atoms, preferably an ethyl group, a propyl group or a butyl group.
  • RN1172 is preferably an alkyl group having 1 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-17) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-18) is the following compound.
  • R N1181 and R N1182 independently represents the same meaning as R N11 and R N12 in the general formula (N-1).
  • RN1181 is preferably an alkyl group having 1 to 5 carbon atoms, preferably a methyl group, an ethyl group, a propyl group or a butyl group.
  • RN1182 is preferably an alkyl group having 1 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-18) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-18) is a compound selected from the compound group represented by the formulas (N-1-18.1) to (N-1-18.5). It is preferable that the compound is represented by the formulas (N-1-18.1) to (N-1-11.3), and the compounds are preferably represented by the formulas (N-1-18.1) to (N-1-11. The compound represented by 1-18.3) is preferable.
  • the compound represented by the general formula (N-1-20) is the following compound.
  • RN1201 and RN1202 are each independently preferably an alkyl group having 1 to 5 carbon atoms, 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-1-20) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-21) is the following compound.
  • RN1211 and R N1212 independently represents the same meaning as R N11 and R N12 in the general formula (N-1).
  • RN1211 and RN1212 are each independently preferably an alkyl group having 1 to 5 carbon atoms, 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-2-1) with respect to the total amount of the composition of the present invention is 5%, 10%, 13% and 15%. It is 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%.
  • the compound represented by the general formula (N-1-22) is the following compound.
  • RN1221 and R N1222 independently represents the same meaning as R N11 and R N12 in the general formula (N-1).
  • RN1221 and RN1222 are each independently preferably an alkyl group having 1 to 5 carbon atoms, 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content when the improvement of ⁇ is emphasized, it is preferable to set the content high, when the solubility at low temperature is emphasized, the content is set high, and when the TNI is emphasized, the content is high. The effect is high when is set high. Further, when improving the dripping marks and the seizure characteristics, it is preferable to set the content range in the middle.
  • the lower limit of the preferable content of the compound represented by the formula (N-2-1) with respect to the total amount of the composition of the present invention is 1%, 5%, 10% and 13%. It is 15%, it is 17%, and it is 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 compound group represented by the formulas (N-1-22.1) to (N-1-22.6). It is preferably a compound represented by the formulas (N-1-22.1) to (N-1-22.5), and the compounds are preferably represented by the formulas (N-1-22.1) to (N-).
  • the compound represented by 1-22.4) is preferable.
  • any one or more of the compounds (N-1-1) to (N-1-5), the compound (N-1-10), and the compound (N-) are used.
  • the combination with 1-11) is preferable, and any one or more of the compounds (N-1-1) to (N-1--4), (N-1-10), and the compound (N-1-11) are preferable.
  • ) Is more preferable, and any one or more of the compounds (N-1-1) to (N-1--4), the compound (N-1-10), and the compound (N-1-11) are used.
  • the combination with the compound (N-1-3), the compound (N-1-10), and the compound (N-1-11) is particularly preferable.
  • -Compound (L) The liquid crystal composition of the present invention preferably further contains one or more compounds represented by the general formula (L).
  • n L1 represents 0, 1, 2 or 3
  • the compound represented by the formula (L) corresponds to a dielectrically substantially neutral compound (the value of ⁇ is -2 to 2). Therefore, the number of polar groups such as halogens contained in the molecule is preferably 2 or less, preferably 1 or less, and preferably not present.
  • the compound represented by the formula (L) may be used alone, but may also be used in combination.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to desired performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the type of compound used is, for example, one type as one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types, three types, four types, five types, six types, seven types, eight types, nine types, and ten. More than a kind.
  • the content of the compound represented by the general formula (L) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, seizure, and the like. It is necessary to make appropriate adjustments according to the 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% and 40. %, 50%, 55%, 60%, 65%, 70%, 75%, 80%.
  • the preferred upper limit of the content is 95%, 85%, 75%, 65%, 55%, 45%, 35%, and 25%.
  • the above lower limit value is high and the upper limit value is high. Further, when a composition having a high Tni of the composition of the present invention and good temperature stability is required, it is preferable that the above lower limit value is high and the upper limit value is high. Further, when it is desired to increase the dielectric anisotropy in order to keep the drive voltage low, it is preferable that the above lower limit value is low and the upper limit value is low.
  • Both RL1 and RL2 are preferably alkyl groups when reliability is important, and alkoxy groups are preferable when reducing the volatility of the compound is important, and reduction of viscosity is important. It is preferable that at least one of them is an alkenyl group.
  • the number of halogen atoms present in the molecule is preferably 0, 1, 2 or 3, preferably 0 or 1, and preferably 1 when compatibility with other liquid crystal molecules is important.
  • RL1 and RL2 are linear alkyl groups having 1 to 5 carbon atoms and linear carbon atoms 1 to 4 when the ring structure to which they are bonded is a phenyl group (aromatic).
  • the alkoxy group and the alkenyl group having 4 to 5 carbon atoms are preferable, and when the ring structure to which the alkoxy group is bonded is a saturated ring structure such as cyclohexane, pyran and dioxane, the linear carbon atom number is 1 to 5.
  • Alkyl groups, linear alkoxy groups having 1 to 4 carbon atoms and linear alkenyl groups having 2 to 5 carbon atoms are preferable.
  • 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 the groups represented by any of the formulas (R1) to (R5). (The black dots in each equation represent carbon atoms in the ring structure.)
  • n L1 is preferably 0 when the response speed is important, 2 or 3 is preferable for improving the upper limit temperature of the nematic phase, and 1 is preferable for balancing these. Further, 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 if it is required to increase the ⁇ n is aromatic, preferably to improve the response speed is an aliphatic, 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 is preferable to represent a diyl group or 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, and more preferably to represent the following structure.
  • Z L1 and Z L2 are preferably single-bonded when response speed is important.
  • the compound represented by the general formula (L) preferably has 0 or 1 halogen atoms in the molecule.
  • the compound represented by the general formula (L) is preferably a compound selected from the compound group represented by the general formulas (L-1) to (L-7).
  • the compound represented by the general formula (L-1) is the following compound.
  • RL11 and RL12 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, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the lower limit of the preferable content is 1%, 2%, 3%, 5%, 7%, 10%, and 15% based on the total amount of the composition of the present invention. %, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%.
  • the preferred upper limit of the content is 95%, 90%, 85%, 80%, 75%, 70%, 65% with respect to the total amount of the composition of the present invention. %, 60%, 55%, 50%, 45%, 40%, 35%, 30%, 25%.
  • the above lower limit value is high and the upper limit value is high. Further, when a composition having a high Tni of the composition of the present invention and good temperature stability is required, it is preferable that the above lower limit value is moderate and the upper limit value is moderate. Further, when it is desired to increase the dielectric anisotropy in order to keep the drive voltage low, it is preferable that the above 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 compound group represented by the general formula (L-1-1).
  • the compound represented by the general formula (L-1-1) shall be a compound selected from the compound group represented by the formulas (L-1-1.1) to (L-1-1.3). Is preferable, and it is preferable that the compound is represented by the formula (L-1-1.2) or the formula (L-1-1.3), and in particular, the compound is represented by the formula (L-1-1.3). It is preferably 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% and 3%. It is 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%, and 3%.
  • the compound represented by the general formula (L-1) is preferably a compound selected from the compound group represented by the general formula (L-1-2).
  • 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% and 15%. , 17%, 20%, 23%, 25%, 27%, 30%, 35%.
  • the preferred upper limit of the content is 60%, 55%, 50%, 45%, 42%, 40%, 38, based on the total amount of the composition of the present invention. %, 35%, 33%, 30%.
  • the compound represented by the general formula (L-1-2) is a compound selected from the compound group represented by the formulas (L-1-2.1) to (L-1-2.4). It is preferable that the compound is represented by the formulas (L-1-2.2) to (L-1-2.4). In particular, the compound represented by the formula (L-1-2.2) is preferable because it particularly improves the response rate of the composition of the present invention. Further, when obtaining Tni higher than the response speed, it is preferable to use a compound represented by the formula (L-1-2.3) or the formula (L-1-2.4).
  • the content of the compounds represented by the formulas (L-1-2.3) and (L-1-2.4) is not preferably 30% or more in order to improve the solubility at a low temperature.
  • 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%, and 18%. It is 20%, it is 23%, it is 25%, it is 27%, it is 30%, it is 33%, it is 35%, it is 38%, and it is 40%.
  • the preferred upper limit of the content is 60%, 55%, 50%, 45%, 43%, 40%, 38, based on the total amount of the composition of the present invention. %, 35%, 32%, 30%, 27%, 25%, 22%.
  • the lower limit of the total preferable 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 are 10%, 15%, 20%, 25%, 27%, 30%, 35%, and 40%.
  • the preferred upper limit of the content is 60%, 55%, 50%, 45%, 43%, 40%, 38, based on the total amount of the composition of the present invention. %, 35%, 32%, 30%, 27%, 25%, 22%.
  • the compound represented by the general formula (L-1) is preferably a compound selected from the compound group represented by the general formula (L-1-3).
  • RL13 and RL14 independently represent an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms.
  • RL13 and RL14 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 formula (L-1-3) with respect to the total amount of the composition of the present invention is 1%, 5%, 10% and 13%. , 15%, 17%, 20%, 23%, 25%, and 30%.
  • the preferred upper limit of the content is 60%, 55%, 50%, 45%, 40%, 37%, 35% with respect to the total amount of the composition of the present invention. %, 33%, 30%, 27%, 25%, 23%, 20%, 17%, 15%, 13%, 10 %.
  • the compound represented by the general formula (L-1-3) is a compound selected from the compound group represented by the formulas (L-1-3.1) to (L-1-3.13).
  • the compound is represented by the formula (L-1-3.1), the formula (L-1-3.3) or the formula (L-1-3.4).
  • the compound represented by the formula (L-1-3.1) is preferable because it particularly improves the response rate of the composition of the present invention.
  • the formula (L-1-3.3), the formula (L-1-3.4), the formula (L-1-3.11) and the formula (L-) are obtained. It is preferable to use the compound represented by 1-3.12).
  • the content of is not preferably 20% or more in order to improve the solubility at low temperature.
  • 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% and 3%. It is 5%, 7%, 10%, 13%, 15%, 18%, and 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. It is%, and it is 6%.
  • the compound represented by the general formula (L-1) is preferably a compound selected from the compound group represented by the general formula (L-1-4) and / or (L-1-5).
  • RL15 and RL16 independently represent an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms.
  • RL15 and RL16 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 formula (L-1-4) with respect to the total amount of the composition of the present invention is 1%, 5%, 10% and 13%. It is 15%, it is 17%, and it is 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 formula (L-1-5) with respect to the total amount of the composition of the present invention is 1%, 5%, 10% and 13%. It is 15%, it is 17%, and it is 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-1-5.3) from the formulas (L-1-4.1). It is preferable that the compound is selected from the above-mentioned compound group, and the compound represented by the formula (L-1-4.2) or the formula (L-1-5.2) is preferable.
  • 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% and 3%. It is 5%, 7%, 10%, 13%, 15%, 18%, and 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. It is%, and it is 6%.
  • Equation (L-1-1.3), Equation (L-1-2.2), Equation (L-1-3.1), Equation (L-1-3.3), Equation (L-1- It is preferable to combine two or more compounds selected from the compounds represented by 3.4), the formula (L-1-3.11) and the formula (L-1-3.12), and the formula (L-1). -1.3), equation (L-1-2.2), equation (L-1-3.1), equation (L-1-3.3), equation (L-1-3.4) and It is preferable to combine two or more compounds selected from the compounds represented by the formula (L-1-4.2), and the lower limit of the preferable content of the total content of these compounds is the composition of the present invention.
  • the compound represented by the general formula (L-1) is preferably a compound selected from the compound group represented by the general formula (L-1-6).
  • RL17 and RL18 each independently represent a methyl group or a hydrogen atom.
  • the lower limit of the preferable content of the compound represented by the formula (L-1-6) with respect to the total amount of the composition of the present invention is 1%, 5%, 10% and 15%. , 17%, 20%, 23%, 25%, 27%, 30%, 35%.
  • the preferred upper limit of the content is 60%, 55%, 50%, 45%, 42%, 40%, 38, based on the total amount of the composition of the present invention. %, 35%, 33%, 30%.
  • the compound represented by the general formula (L-1-6) is a compound selected from the compound group represented by the formulas (L-1-6.1) to (L-1-6.3). It is preferable to have.
  • the compound represented by the general formula (L-2) is the following compound.
  • R L21 and R L22 are each independently but in the general formula (L) represent the same meaning as R L1 and R L2, excluding the compound represented by the formula (i).
  • RL21 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms
  • RL22 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 4 to 5 carbon atoms.
  • the compound represented by the general formula (L-2) can be used alone, but can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • 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% and 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%, and 3%.
  • the compound represented by the general formula (L-2) is preferably a compound selected from the compound group represented by the formulas (L-2.1) to (L-2.2).
  • the compound represented by the general formula (L-3) is the following compound.
  • RL31 and RL32 are preferably alkyl groups having 1 to 5 carbon atoms, alkenyl groups having 4 to 5 carbon atoms, or alkoxy groups having 1 to 4 carbon atoms, respectively.
  • the compound represented by the general formula (L-3) can be used alone, but it can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the lower limit of the preferable content of the compound represented by the formula (L-3) with respect to the total amount of the composition of the present invention is 1%, 2%, 3% and 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%, and 3%.
  • the compound represented by the general formula (L-3) is preferably a compound selected from the compound group represented by the formulas (L-3.1) to (L-3.7), preferably the formula. It is preferable that the compound is represented by the formula (L-3.5) from (L-3.2).
  • R L41 and R L42 are each independently the same meaning as R L1 and R L2 in Formula (L).
  • RL41 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms
  • RL42 is an alkyl group having 1 to 5 carbon atoms and an alkenyl group or carbon atom having 4 to 5 carbon atoms. Alkoxy groups of numbers 1 to 4 are preferred.
  • the compound represented by the general formula (L-4) can be used alone, or two or more compounds can be used in combination.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content of the compound represented by the general formula (L-4) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, dropping marks, and the like. It is necessary to make appropriate adjustments according to the required performance such as seizure and dielectric anisotropy.
  • the lower limit of the preferable content of the compound represented by the formula (L-4) with respect to the total amount of the composition of the present invention is 1%, 2%, 3% and 5%. , 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35%, 40%. ..
  • the upper limit of the preferable content of the compound represented by the formula (L-4) 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-4) is preferably a compound represented by the formulas (L-4.1) to (L-4.3), for example.
  • the formula (L) Even if it contains the compound represented by 4.2), it contains both the compound represented by the formula (L-4.1) and the compound represented by the formula (L-4.2). It may contain all the compounds represented by the formulas (L-4.1) to (L-4.3).
  • the lower limit of the preferable content of the compound represented by the formula (L-4.1) or the formula (L-4.2) with respect to the total amount of the composition of the present invention is 3%, which is 5%. Yes, 7%, 9%, 11%, 12%, 13%, 18%, 21%, and preferred upper limits are 45, 40%. , 35%, 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%. ..
  • both the compound represented by the formula (L-4.1) and the compound represented by the formula (L-4.2) are contained, both compounds are used with respect to the total amount of the composition of the present invention.
  • the lower limit of the preferred content is 15%, 19%, 24%, 30%, and the preferred upper limit is 45, 40%, 35%, 30%. Yes, 25%, 23%, 20%, 18%, 15%, 13%.
  • the compound represented by the general formula (L-4) is preferably a compound represented by the formulas (L-4.4) to (L-4.6), for example, preferably the compound represented by the formula (L-4.4). ) Is preferable.
  • 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%, which is 5%. Yes, 7%, 9%, 11%, 12%, 13%, 18%, 21%. Preferred upper limits are 45, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15%, 13 %, 10%, 8%.
  • both the compound represented by the formula (L-4.4) and the compound represented by the formula (L-4.5) are contained, both compounds are used with respect to the total amount of the composition of the present invention.
  • the lower limit of the preferred content is 15%, 19%, 24%, 30%, and the preferred upper limit is 45, 40%, 35%, 30%. Yes, 25%, 23%, 20%, 18%, 15%, 13%.
  • the compound represented by the general formula (L-4) is preferably a compound represented by the formulas (L-4.7) to (L-4.10), and in particular, the compound represented by the formula (L-4.
  • the compound represented by 9) is preferable.
  • the compound represented by the general formula (L-5) is the following compound. Since the compound represented by the general formula (L-5) has a skeleton similar to that of compound (i), it can exert the same effect and has excellent compatibility, so that it can be used in combination with compound (i). preferable.
  • R L51 and R L52 are each independently the same meaning as R L1 and R L2 in Formula (L).
  • RL51 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms
  • RL52 is an alkyl group having 1 to 5 carbon atoms and an alkenyl group or carbon atom having 4 to 5 carbon atoms. Alkoxy groups of numbers 1 to 4 are preferred.
  • the compound represented by the general formula (L-5) can be used alone, but can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the content of the compound represented by the general formula (L-5) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, dropping marks, and the like. It is necessary to make appropriate adjustments according to the required performance such as seizure and dielectric anisotropy.
  • the lower 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 1%, 2%, 3% and 5%. , 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35%, 40%. ..
  • 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%, and 5%
  • the compounds represented by the general formula (L-5) are represented by the formulas (L-5.1) to (L-5.3). ) Is preferable, and a compound represented by the formula (L-5.1) or the formula (L-5.2) is particularly 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-5) is preferably a compound represented by the formula (L-5.4) or the formula (L-5.5).
  • 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 compound group represented by the formulas (L-5.6) to (L-5.8), and particularly the compound represented by the formula (L-5). It is preferably a compound represented by L-5.6).
  • 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%, 9%, and 6%.
  • 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 Formula (L), X L61 and X L62 each independently represents a hydrogen atom or a fluorine atom.
  • Each of RL61 and RL62 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and one of XL61 and XL62 is a fluorine atom and the other is a hydrogen atom. Is preferable.
  • the compound represented by the general formula (L-6) can be used alone, but can also be used in combination of two or more compounds.
  • the types of compounds that can be combined are not particularly limited, but they are appropriately combined and used according to the required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.
  • the types of compounds used are, for example, one type, two types, three types, four types, and five or more types as one embodiment of the present invention.
  • the lower 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 1%, 2%, 3% and 5%. , 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35%, 40%. ..
  • 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 formulas (L-6.1) to (L-6.9).
  • the types of compounds that can be combined there is no particular limitation on the types of compounds that can be combined, but it is preferable to contain 1 to 3 types of these compounds, and it is more preferable to contain 1 to 4 types.
  • the wide molecular weight distribution of the selected compound is also effective for solubility, for example, one kind from the compounds represented by the formula (L-6.1) or (L-6.2), the formula (L-).
  • it is represented by the formula (L-6.1), the formula (L-6.3), the formula (L-6.4), the formula (L-6.6) and the formula (L-6.9). It preferably contains a compound.
  • the compound represented by the general formula (L-6) is preferably a compound represented by the formulas (L-6.10) to (L-6.17), and among them, the compound represented by the formula (L-6.17) is preferable. It is preferably a compound represented by L-6.11).
  • 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 although it has the same meaning as A L3
  • the hydrogen atoms on A L71 and A L72 may be independently substituted with fluorine atoms
  • Z L71 has the same meaning as Z L2 in the general formula (L).
  • X L71 and X L72 independently represent a fluorine atom or a hydrogen atom, respectively.
  • RL71 and RL72 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 AL71 and AL72. Is preferably a 1,4-cyclohexylene group or a 1,4-phenylene group independently, and the hydrogen atom on AL71 and AL72 may be independently substituted with a fluorine atom, and Z L71 is simply. Bonds or COO- are preferred, single bonds are preferred, and XL71 and XL72 are preferably hydrogen atoms.
  • the types of compounds that can be combined are, for example, one type, two types, three types, and four types as one embodiment of the present invention.
  • the content of the compound represented by the general formula (L-7) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, dropping marks, and the like. It is necessary to make appropriate adjustments according to the required performance such as seizure and dielectric anisotropy.
  • the lower 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 1%, 2%, 3% and 5%. , 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%.
  • Tni having a high composition of the present invention it is preferable to increase the content of the compound represented by the formula (L-7), and when an embodiment having a low viscosity is desired, the content is high. It is preferable to reduce the amount.
  • the compound represented by the general formula (L-7) is preferably a compound represented by the formulas (L-7.1) to (L-7.4), and the compound represented by the formula (L-7. It is preferably a compound represented by 2).
  • the compound represented by the general formula (L-7) is preferably a compound represented by the formulas (L-7.11) to (L-7.13), and the compound represented by the formula (L-7. It is preferably a compound represented by 11).
  • the compound represented by the general formula (L-7) is a compound represented by the formulas (L-7.21) to (L-7.23). It is preferably a compound represented by the formula (L-7.21).
  • the compound represented by the general formula (L-7) is preferably a compound represented by the formulas (L-7.31) to (L-7.34), and the compound represented by the formula (L-7. 31) or / and a compound represented by the formula (L-7.32) are preferable.
  • the compound represented by the general formula (L-7) is preferably a compound represented by the formulas (L-7.41) to (L-7.44), and the compound represented by the formula (L-7. It is preferably a compound represented by 41) or / and the formula (L-7.42).
  • the compound represented by the general formula (L-7) is preferably a compound represented by the formulas (L-7.51) to (L-7.53).
  • the lower limit of the total preferable content of the compounds represented by the general formula (i), the general formula (ii), the general formula (N-1) and the general formula (L) with respect to the total amount of the composition of the present invention are 80%, 85%, 88%, 90%, 92%, 93%, 94%, 95%, 96%, 97%. Yes, 98%, 99%, 100%.
  • the upper limit of the preferable content is 100%, 99%, 98%, 95%, 93%, and 90%.
  • the upper limit of the total preferable content of the compound having an alkenyl group with respect to the total amount of the composition of the present invention is 30%, 25%, 20%, 15%, and 13%. Yes, it is 10%.
  • the inclusion of a compound having an alkenyl group is effective in improving the response rate, but it also has an unfavorable effect from the viewpoint of reliability and wavelength dispersibility of ⁇ n. Therefore, the compound represented by the formula (L) and the compound represented by the formula (N-1) are preferably compounds having no alkenyl group, and have an alkenyl group other than the compound represented by the formula (ii). It is more preferable that the compound having the above is substantially not contained.
  • composition of the present invention preferably does not contain a compound having a structure in which oxygen atoms are bonded to each other, such as a peracid (-CO-OO-) structure, in the molecule.
  • the content of the compound having a carbonyl group is preferably 5% or less, more preferably 3% or less, based on the total mass of the composition. It is preferably 1% or less, and most preferably not substantially contained.
  • the content of the compound substituted with chlorine atoms is preferably 15% or less, preferably 10% or less, based on the total mass of the composition. % Or less, more preferably 5% or less, more preferably 3% or less, and even more preferably substantially no content.
  • the content of the compound having all 6-membered ring structures in the molecule is 80 with respect to the total mass of the composition. % Or more, more preferably 90% or more, further preferably 95% or more, and the composition is composed only of a compound in which substantially all the ring structures in the molecule are 6-membered rings. It is most preferable to do so.
  • the content of the compound whose side chain is an alkyl group and an alkoxy group is preferably 85% or more, preferably 87% or more, preferably 90% or more, preferably 93% or more, and 95% or more with respect to the total mass of the composition. It is preferably 98% or more, and more preferably 100%.
  • Substantially 100% means 100% excluding polymerizable compounds, stabilizers and additional impurities.
  • the content of the compound having a cyclohexenylene group as a ring structure In order to suppress deterioration of the composition due to oxidation, it is preferable to reduce the content of the compound having a cyclohexenylene group as a ring structure, and the content of the compound having a cyclohexenylene group is added to the total mass of the composition. On the other hand, it is preferably 10% or less, preferably 8% or less, more preferably 5% or less, preferably 3% or less, and further preferably substantially not contained.
  • the content of the compound having a 2-methylbenzene-1,4-diyl group in which the hydrogen atom may be substituted with halogen may be reduced.
  • the content of the compound having a 2-methylbenzene-1,4-diyl group in the molecule is preferably 10% or less, preferably 8% or less, based on the total mass of the composition. It is more preferably 5% or less, more preferably 3% or less, and further preferably substantially not contained.
  • substantially not contained means that it is not contained except for substances that are unintentionally contained.
  • the average elastic constant ( KAVG ) of the liquid crystal composition used in the present invention is preferably 10 to 25, but the lower limit thereof is preferably 10 is preferable, 10.5 is preferable, 11 is preferable, and 11.5 is preferable.
  • 12 is preferred, 12.3 is preferred, 12.5 is preferred, 12.8 is preferred, 13 is preferred, 13.3 is preferred, 13.5 is preferred, 13.8 is preferred, 14 is preferred, 14 .3 is preferred, 14.5 is preferred, 14.8 is preferred, 15 is preferred, 15.3 is preferred, 15.5 is preferred, 15.8 is preferred, 16 is preferred, 16.3 is preferred, 16 .5 is preferable, 16.8 is preferable, 17, is preferable, 17.3 is preferable, 17.5 is preferable, 17.8 is preferable, 18 is preferable, and 25 is preferable and 24.5 is preferable as the upper limit value thereof.
  • the liquid crystal composition of the present invention may contain a polymerizable compound in order to produce a liquid crystal display element such as PS mode, transverse electric field type PSA mode or transverse electric field type PSVA mode.
  • Examples of the polymerizable compound that can be used include a photopolymerizable monomer in which polymerization proceeds by an energy ray such as light, and as a structure, for example, it has a liquid crystal skeleton in which a plurality of six-membered rings such as a biphenyl derivative and a terphenyl derivative are linked. Polymerizable compounds and the like can be mentioned.
  • a polymerizable compound (polymerizable monomer) represented by the general formula (P) is preferable.
  • R p1 represents a hydrogen atom, a fluorine atom, a cyano group, an alkyl group having 1 to 15 carbon atoms or -Sp p2- P p2 , and one or a non-alkyl group.
  • One or more hydrogen atoms in the alkyl group may be independently substituted with a cyano group, a fluorine atom or a chlorine atom.
  • P p1 and P p2 are independent of each other, and the general formulas (P p1-1 ) to (P p1-9 ) are used.
  • R p11 and R p12 independently represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkyl halide group having 1 to 5 carbon atoms, and W p11 is a single bond, ⁇ O. -, -COO- or a methylene group, t p11 represents 0, 1 or 2, but if there are multiple R p11 , R p12 , W p11 and / or t p11 in the molecule, they are the same. It may be different or different.
  • Z p1 and Z p2 are independent, single-bonded, -O-, -S-, -CH 2- , -OCH 2- , -CH 2 O-, -CO-, -C 2 H 4 -,-, respectively.
  • (A p) 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-.)
  • m p1 represents 0, 1, 2 or 3, and when a plurality of Z p1 , Ap2 , Sp p2 and / or P p2 are present in the molecule, they may be the same or different.
  • a p3 represents a single bond when m p1 is 0 and A p1 is a phenanthrene-2,7-diyl group or an anthracene-2,6-diyl group.
  • R p1 is preferably ⁇ Sp p2- P p2 .
  • P p1 and P p2 are independently one of the formulas (P p1-1 ) to (P p1 -3), and it is preferably (P p1-1 ).
  • R p11 and R p12 are independently hydrogen atoms or methyl groups, respectively.
  • t p11 is preferably 0 or 1.
  • W p11 is preferably a single bond, a methylene group or an ethylene group.
  • m p1 is preferably 0, 1 or 2, preferably 0 or 1.
  • a p1 , A p2 and A p3 are independent of each other, preferably a 1,4-phenylene group or a 1,4-cyclohexylene group, preferably a 1,4-phenylene group.
  • the 1,4-phenylene group is preferably substituted with one fluorine atom, one methyl group or one methoxy group in order to improve the compatibility with the liquid crystal compound.
  • the total content of the compound represented by the formula (P) is preferably 0.05 to 10% with respect to the composition containing the compound represented by the formula (P) of the present application. It is preferably contained in an amount of 1 to 8%, preferably 0.1 to 5%, preferably 0.1 to 3%, and preferably 0.2 to 2%. It preferably contains 0.2 to 1.3%, preferably 0.2 to 1%, and preferably 0.2 to 0.56%.
  • the preferable lower limit of the total content of the compounds represented by the formula (P) is 0.01% and 0.03% with respect to the composition containing the compound represented by the formula (P) of the present application. , 0.05%, 0.08%, 0.1%, 0.15%, 0.2%, 0.25%, 0.3% is there.
  • the preferable upper limit of the total content of the compound represented by the formula (P) is 10%, 8%, and 5% with respect to the composition containing the compound represented by the formula (P) of the present application. %, 3%, 1.5%, 1.2%, 1%, 0.8%, 0.5%.
  • the content is low, the effect of adding the compound represented by the formula (P) is unlikely to appear, and problems such as weak orientation control of the liquid crystal composition or weakening over time occur. If the content is too high, after curing Problems such as a large amount remaining, a long curing time, and a decrease in the reliability of the liquid crystal occur. Therefore, the content is set in consideration of these balances.
  • Preferred examples of the compound represented by the formula (P) include polymerizable compounds represented by the following formulas (P-1-1) to (P-1-46).
  • P p11 , P p12 , Sp p11 and Sp p12 have the same meanings as P p1 , P p2 , Sp p1 and Sp p2 in the general formula (P).
  • Preferred examples of the compound represented by the general formula (P) according to the present invention include polymerizable compounds represented by the following formulas (P-2-1) to (P-2-29).
  • P p21 , P p22 , Sp p21 and Sp p22 have the same meanings as P p1 , P p2 , Sp p1 and Sp p2 in the general formula (P).
  • Preferred examples of the compound represented by the general formula (P) according to the present invention include polymerizable compounds represented by the following formulas (P-3-1) to (P-3-15).
  • P p31 , P p32 , Sp p31 and Sp p32 have the same meanings as P p1 , P p2 , Sp p1 and Sp p2 in the general formula (P).
  • Preferred examples of the compound represented by the general formula (P) according to the present invention include polymerizable compounds represented by the following formulas (P-4-1) to (P-4-19).
  • P p41 , P p42 , Sp p41 and Sp p42 have the same meanings as P p1 , P p2 , Sp p1 and Sp p2 in the general formula (P), and a plurality of P p42 and Sp p42 are the same, respectively. It may be different.
  • a polymerizable monomer one type of polymerizable monomer may be used alone, or two or more types may be used in combination.
  • the polymerization reaction rate can be appropriately controlled, the amount of residual monomers can be reduced, and an appropriate pretilt can be achieved.
  • the total content of the compounds represented by the formula (P) is preferably 0.05 to 10%, preferably 0.1 to 8%, based on the composition containing the compounds. It preferably contains 0.1 to 5%, preferably 0.1 to 3%, preferably 0.2 to 2%, and preferably 0.2 to 1.3%. It is preferable that it contains 0.2 to 1%, and it is preferable that it contains 0.2 to 0.56%.
  • the preferable lower limit of the total content of the compounds represented by the formula (P) is 0.01%, 0.03%, and 0.05% with respect to the composition containing those compounds. , 0.08%, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%.
  • the preferable upper limit of the total content of the compounds represented by the formula (P) is 10%, 8%, 5%, and 3% with respect to the composition containing those compounds. It is 1.5%, 1.2%, 1%, 0.8%, and 0.5%.
  • the composition in the present invention can further contain a compound represented by the general formula (Q).
  • RQ represents a linear alkyl group or a branched chain alkyl group having 1 to 22 carbon atoms, and one or more CH 2 groups in the alkyl group are ⁇ O so that oxygen atoms are not directly adjacent to each other.
  • a branched chain alkyl group substituted with -COO- is preferable, a linear alkyl group having 1 to 20 carbon atoms, and a linear alkyl group in which one CH 2 group is substituted with -OCO- or -COO-, or branched.
  • a chain alkyl group, a branched alkoxy group, and a branched chain alkyl group in which one CH 2 group is substituted with -OCO- or -COO- are more preferable.
  • MQ represents a trans-1,4-cyclohexylene group, a 1,4-phenylene group or a single bond, with a trans-1,4-cyclohexylene group or a 1,4-phenylene group being preferred.
  • the compound represented by the general formula (Q) is preferably a compound represented by the following general formulas (Qa) to (Qd).
  • R Q1 is preferably a linear alkyl group or branched alkyl group having 1 to 10 carbon atoms
  • R Q2 is preferably a linear alkyl group or branched alkyl group having 1 to 20 carbon atoms
  • R Q3 is linear alkyl group having a carbon number of 1 to 8, branched chain alkyl group, preferably a linear alkoxy group or a branched chain alkoxy group
  • L Q is preferably a linear alkylene group or branched alkylene group having 1 to 8 carbon atoms .
  • the compounds represented by the general formulas (Qa) to (Qd) are more preferable.
  • composition of the present invention preferably contains one or two compounds represented by the general formula (Q), more preferably one to five, and the content thereof is from 0.001. It is preferably 1%, more preferably 0.001 to 0.1%, and particularly preferably 0.001 to 0.05%.
  • antioxidants or a light stabilizer that can be used in the present invention, more specifically, the compounds represented by the following (III-1) to (III- 40 ) are preferable.
  • the liquid crystal composition of the present invention preferably contains one or more compounds represented by the general formula (Q) or compounds selected from the general formulas (III-1) to (III- 40 ). It is more preferable to contain 5 kinds from the seeds, the content thereof is preferably 0.001 to 1%, more preferably 0.001 to 0.1%, and particularly preferably 0.001 to 0.05%. ..
  • various parameters calculated from the physical property values of the liquid crystal composition are used as a method for expressing the characteristics of the liquid crystal display element. They include ⁇ 1 / K 33 , which controls the response speed, K 11 / K 33 , which controls the steepness of the electro-optical effect, and K 33 / ⁇
  • the liquid crystal composition of the present invention has both high-speed response, low drive voltage, good low-temperature storage, wide viewing angle and high transmittance.
  • the parameter ⁇ 1 / K 33 that controls the response speed is 10. It is preferably 0 mPa ⁇ s ⁇ pN -1 or less, preferably 9.8 mPa ⁇ s ⁇ pN -1 or less, preferably 9.5 mPa ⁇ s ⁇ pN -1 or less, preferably 9.2 mPa ⁇ s ⁇ pN -1 or less. 9.0 mPa ⁇ s ⁇ pN -1 or less is particularly preferable.
  • the parameter K 11 / K 33 that controls the steepness of the electro-optical effect is preferably 1.20 or less, preferably 1.15 or less, preferably 1.10 or less, preferably 1.07 or less, and preferably 1.05 or less. Is preferable, 1.03 or less is preferable, 1.00 or less is further preferable, 0.98 or less is particularly preferable, and 0.96 or less is most preferable.
  • which controls the drive voltage, is preferably 6.0 pN or less, preferably 5.7 pN or less, preferably 5.5 pN or less, preferably 5.3 pN or less, and particularly preferably 5.1 pN or less. ..
  • the liquid crystal composition of the present invention is a liquid crystal display element in which a polymerizable compound contained therein is polymerized by irradiation with ultraviolet rays to impart a liquid crystal orientation ability, and the amount of transmitted light is controlled by utilizing the birefringence of the composition. used.
  • ⁇ Liquid crystal display element> The liquid crystal display element using the composition of the present invention is useful for achieving both high-speed response and suppression of display defects, and is particularly useful for a liquid crystal display element for driving an active matrix, and is used in VA mode, PSVA mode, and PSA. It can be applied to a liquid crystal display element for mode, IPS mode or ECB mode. Among them, the liquid crystal composition of the present invention is suitable for a liquid crystal display element in PSVA mode or PSA mode.
  • the liquid crystal display element of the present invention includes a first substrate and a second substrate arranged opposite to each other, a common electrode provided on the first substrate or the second substrate, and the first substrate or the first substrate. It is preferable to have a pixel electrode provided on the second substrate and having a thin film transistor, and a liquid crystal layer containing a liquid crystal composition provided between the first substrate and the second substrate. If necessary, an alignment film for controlling the orientation direction of the liquid crystal molecules may be provided on the facing surface side of at least one substrate of the first substrate and / or the second substrate so as to come into contact with the liquid crystal layer.
  • a vertical alignment film, a horizontal alignment film, or the like can be appropriately selected according to the drive mode of the liquid crystal display element, such as a rubbing alignment film (for example, polyimide) or a photoalignment film (decomposition type polyimide, etc.).
  • a rubbing alignment film for example, polyimide
  • a photoalignment film decomposition type polyimide, etc.
  • a known alignment film of the above can be used.
  • the color filter may be appropriately provided on the first substrate or the second substrate, and the color filter may be provided on the pixel electrode or the common electrode.
  • Each member and manufacturing method of the liquid crystal display element of the present invention are not particularly limited, and the liquid crystal display element can be configured and manufactured using general members and manufacturing methods.
  • the method for polymerizing the polymerizable compound is not particularly limited. However, in order to obtain good orientation performance of the liquid crystal, it is desirable to polymerize at an appropriate polymerization rate. Therefore, a method of polymerizing by irradiating with active energy rays such as ultraviolet rays or electron beams alone, in combination, or in order. Is preferable. When ultraviolet rays are used, a polarized light source may be used, or a non-polarized light source may be used. Further, when polymerization is carried out with the liquid crystal composition sandwiched between two substrates, at least the substrate on the irradiation surface side must be provided with appropriate transparency with respect to active energy rays.
  • active energy rays such as ultraviolet rays or electron beams alone, in combination, or in order.
  • the orientation state of the unpolymerized part is changed by changing conditions such as electric field, magnetic field, or temperature, and further irradiation with active energy rays.
  • the AC electric field to be applied is preferably an AC having a frequency of 1 Hz to 10 kHz, more preferably a frequency of 60 Hz to 10 kHz, and the voltage is selected depending on a desired pretilt angle of the liquid crystal display element.
  • the pretilt angle of the liquid crystal display element can be controlled by the applied voltage.
  • IS occurs if the polymerizable compound remains as it is without being polymerized after the device is manufactured.
  • the amount of the remaining polymerizable compound is preferably 20 ppm or less, more preferably 15 ppm or less, particularly preferably 10 ppm or less, and particularly preferably not more than the lower limit of detection or 0.
  • the temperature at the time of irradiation with active energy rays such as ultraviolet rays or electron beams used when 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 provided with 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. That is, it is preferable to polymerize at 15 to 50 ° C.
  • a metal halide lamp, a high-pressure mercury lamp, an ultra-high pressure mercury lamp and the like can be used, and a USHIO ultra-high pressure UV lamp and a fluorescent ultraviolet lamp manufactured by TOSHIBA are preferable.
  • the wavelength of the ultraviolet rays to be irradiated it is preferable to irradiate the ultraviolet rays in a wavelength region other than the absorption wavelength region of the liquid crystal composition, and it is preferable to cut off the ultraviolet rays on the shorter wavelength side as necessary.
  • the intensity of the ultraviolet rays to be irradiated is preferably 0.1 mW / cm 2 to 100 W / cm 2, and more preferably 2 mW / cm 2 to 50 W / cm 2 .
  • the amount of energy of the ultraviolet rays to be irradiated can be appropriately adjusted, but is preferably 10 mJ / cm 2 to 500 J / cm 2, and more preferably 100 mJ / cm 2 to 200 J / cm 2 .
  • n in the table is a natural number.
  • T ni Nematic phase-isotropic liquid phase transition temperature (° C) ⁇ n: Refractive index anisotropy at 20 ° C ⁇ : Dielectric anisotropy at 20 ° C ⁇ 1 : Rotational viscosity at 20 ° C (mPa ⁇ s) K 11 : Elastic constant of spread at 20 ° C (pN) K 33 : Elastic modulus of bending at 20 ° C (pN)
  • the liquid crystal compositions (LC-1) to (LC-9) of Examples 1 to 7 have a higher response speed than the liquid crystal compositions (LC-A) to (LC-C) of Comparative Examples 1 to 3.
  • the governing parameter ⁇ 1 / K 33 is sufficiently small, and the parameter K 11 / K 33 governing the steepness of the electro-optical effect is sufficiently small, and the parameter governing the drive voltage
  • LC-A (Comparative Example 1)
  • LC-B (Comparative Example 2)
  • LC-C (Comparative Example 3) are parameters that control the response speed as compared with Examples, ⁇ 1 / K 33 ,
  • that controls the drive voltage, or the wavelength dispersibility of ⁇ n, or a plurality of them is inferior. I understand.
  • the VA liquid crystal display device using the polymerizable liquid crystal composition of the example exhibited high-speed response, low drive voltage, good low-temperature storage, wide viewing angle, and high transmittance.
  • ⁇ indicates that the performance is sufficient for the required characteristics, and ⁇ indicates that the performance is particularly excellent.
  • ⁇ in the table shows the same sufficient performance as the liquid crystal display element obtained in the example, and ⁇ indicates significantly compared to the liquid crystal display element obtained in the example. Represents what has been confirmed to be inferior.
  • the liquid crystal composition of the present invention is an excellent liquid crystal composition capable of achieving both high-speed response, low drive voltage, good low-temperature storage, wide viewing angle, and high transmittance.
  • ⁇ Examples 10 to 45> Represented by RM-1, RM-2, RM-3, RM-4, RM-5, RM-6 and RM-7 as polymerizable compounds with respect to the prepared liquid crystal compositions LC-1 to LC-9.
  • the polymerizable compounds were added to prepare the polymerizable compound-containing liquid crystal compositions MLC-1 to MLC-36 (Examples 10 to 45).
  • composition of the obtained polymerizable compound-containing liquid crystal composition is shown below.
  • a vertically oriented (VA) liquid crystal display element By injecting each of these polymerizable compound-containing liquid crystal compositions into a cell with ITO coated with a polyimide alignment film that induces homeotropic orientation with a cell gap of 3.0 ⁇ m by a vacuum injection method, a vertically oriented (VA) liquid crystal display element is used.
  • VA liquid crystal display element was exposed to 10 J with a high-pressure mercury lamp having an intensity of 100 mW / cm- 2 (365 nm) while applying a square wave of 10 V and 100 Hz.
  • a polymer-stabilized vertical orientation (PSVA) liquid crystal display element was obtained by exposing to 100 J with the voltage turned off. It was confirmed that these PSVA liquid crystal display elements exhibit the same or better characteristics as the VA liquid crystal display elements produced in Examples 1 to 9.
  • Example 46 to 59 To the prepared liquid crystal compositions LC-1 to LC-9, two or three kinds of compounds represented by RM-1 to RM-7 as polymerizable compounds were added at the contents shown in the table, for a total of 100.
  • the liquid crystal compositions containing a polymerizable compound were produced as MLC-37 to MLC-50 (Examples 46 to 59) by adjusting the content to 0.0%.
  • a VA liquid crystal display device was obtained by injecting each of these polymerizable compound-containing liquid crystal compositions into a cell with ITO coated with a polyimide alignment film that induces homeotropic orientation with a cell gap of 3.0 ⁇ m by a vacuum injection method.
  • the obtained VA liquid crystal display element was exposed to 10 J with a high-pressure mercury lamp having an intensity of 100 mW / cm- 2 (365 nm) while applying a square wave of 10 V and 100 Hz.
  • a PSVA liquid crystal display element was obtained by exposing to 100 J with the voltage turned off. It was confirmed that these PSVA liquid crystal display elements exhibit the same or better characteristics as the VA liquid crystal display elements produced in Examples 1 to 9.

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Abstract

La présente invention aborde le problème de pourvoir : à une composition à cristaux liquides satisfaisant aux propriétés requises pour une composition à cristaux liquides du type n présentant une valeur Δε négative et pouvant assurer une réponse à grande vitesse, une faible tension d'entraînement, une bonne stabilité de stockage à basse température, un grand angle de vision et une haute capacité de transmission lorsqu'elle est incorporée dans un dispositif à cristaux liquides tel qu'un téléviseur à cristaux liquides ; et à un élément d'affichage à cristaux liquides comprenant ladite composition. À cet effet, la présente invention concerne une composition à cristaux liquides contenant un ou plusieurs composés représentés par la formule (i) et un ou plusieurs composés représentés par la formule (ii), et un élément d'affichage à cristaux liquides comprenant ladite composition à cristaux liquides.
PCT/JP2020/023885 2019-07-02 2020-06-18 Composition à cristaux liquides et élément d'affichage à cristaux liquides WO2021002205A1 (fr)

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