Liquid crystal composition and liquid crystal display element

Abstract

Regarding the problem, the present invention aims to provide a composition which is a composition having positive Δε, and has a liquid crystal phase in a wide temperature range, is small in viscosity, is good in solubility at low temperature, is high in resistivity and voltage holding ratio, is stable to heat and light, and further provides a liquid crystal display element of FFS type, IPS type, TN type or the like, which is excellent in display quality, and is less likely to cause display defects such as burn-in and droplet marks, by using the composition. Regarding the means for solving the problem, the present inventors have investigated various liquid crystal compounds and various chemical substances, and as a result, have found that the above problem can be solved by combining specific liquid crystal compounds, thereby completing the present invention. The present invention provides a composition containing a compound represented by general formula (i), and a liquid crystal display element using the composition.

Description

Technical Field

[0001] This invention relates to a liquid crystal display device that uses a nematic liquid crystal composition with positive or negative dielectric anisotropy and features high transmittance and high aperture ratio. Background Technology

[0002] Liquid crystal display (LCD) elements are used in various measuring devices such as clocks and calculators, automotive panels, word processors, electronic notebooks, printers, computers, televisions, and advertising display boards. Representative types of LCDs include TN (twisted nematic), STN (super-twisted nematic), vertically aligned TFT (thin-film transistor), and IPS (in-plane switching) types.

[0003] In recent years, the development of higher resolution LCD TVs has led to the widespread development of products with 8K resolution. However, even with this increase in resolution, the overall size of the TV doesn't necessarily increase; instead, the size of a single pixel shrinks. To compensate for the resulting decrease in transmittance and consequently, brightness, higher-brightness backlighting becomes necessary. This, in turn, inevitably leads to increased power consumption, making it impossible to meet the strong demands for energy saving in recent years. Furthermore, the need to increase aperture ratio has created new requirements for liquid crystal compositions that reduce the width of pixel electrodes.

[0004] In addition, liquid crystal compositions are required to be stable against external stimuli such as water, air, heat, and light, and to display the liquid crystal phase over the widest possible temperature range centered at room temperature, with low viscosity and low driving voltage. To meet these requirements, and to ensure that the dielectric constant anisotropy (Δε) and / or refractive index anisotropy (Δn) are optimal for each display element, liquid crystal compositions are constructed using several to dozens of compounds.

[0005] Among all driving methods, low-voltage driving, high-speed response, and a wide operating temperature range are required. Furthermore, Δε must be positive or negative with a large absolute value, viscosity (η) must be low, and the nematic-isotropic liquid phase transition temperature (Tni) must be high. Additionally, the Δn of the liquid crystal composition must be adjusted to an appropriate range based on the product of Δn and the cell gap (d), i.e., Δn×d. Moreover, when applying liquid crystal display elements to televisions, high-speed response is crucial, thus requiring liquid crystal compositions with low rotational viscosity (γ1).

[0006] As a composition for liquid crystal compositions seeking high-speed responsiveness, for example, liquid crystal compositions that combine a liquid crystal compound with a positive Δε and a liquid crystal compound with a neutral Δε are disclosed (Patent Documents 1 to 4).

[0007] As a composition for liquid crystal compositions seeking high-speed responsiveness, for example, liquid crystal compositions that combine liquid crystal compounds with negative Δε and liquid crystal compounds with neutral Δε are disclosed (Patent Documents 5 to 7).

[0008] Existing technical documents

[0009] Patent documents

[0010] Patent Document 1: Japanese Patent Application Publication No. 11-202356

[0011] Patent Document 2: Japanese Patent Application Publication No. 2012-190029

[0012] Patent Document 3: Japanese Patent Application Publication No. 2002-31812

[0013] Patent Document 4: WO2014 / 188612

[0014] Patent Document 5: WO2014 / 006963

[0015] Patent Document 6: WO2014 / 148197

[0016] Patent Document 7: WO2015 / 060056 Summary of the Invention

[0017] The problem that the invention aims to solve

[0018] The problem to be solved by the present invention is to provide a composition that is a positive Δε composition, has a liquid crystal phase with a wide temperature range, low viscosity, good solubility at low temperature, high resistivity and voltage retention, and is stable to heat and light; furthermore, it provides a liquid crystal display element of FFS type, IPS type, TN type, etc. with good yield, which has excellent display quality and is less likely to produce display defects such as burn-in and drip marks by using the above composition.

[0019] Technical means to solve the problem

[0020] The inventors explored various liquid crystal compounds and chemical substances and discovered that the above-mentioned problems could be solved by combining specific liquid crystal compounds, thus completing the present invention.

[0021] A composition comprising one or more compounds represented by general formula (i) is provided, a liquid crystal display element using the composition, and a TN (twisted nematic), ECB (electrically controlled birefringence), IPS (planar switching), or FFS (edge ​​field switching) display element using the composition is provided.

[0022] [Chemistry 1]

[0023]

[0024] (In the above general formula (1), R) i1 and R i2 Alkenes, each representing 2 to 8 carbon atoms, can be used independently.

[0025] X i1 It represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a cyano group, a fluorine atom, or a chlorine atom;

[0026] n i11 and n i12 Each can independently represent 0 or 1, n i11 +n i12 Represents 0 or 1;

[0027] n i21 and n i22 Each of the following can be independently represented as 0, 1, or 2, n i21 +n i22 Indicates 2;

[0028] A i11 and A i12 Each can be independently represented as 1,4-cyclohexylene (one -CH2- or two or more non-adjacent -CH2- in this group can also be replaced by -O-, and hydrogen atoms can also be independently replaced by alkyl, alkoxy, cyano, fluorine or chlorine atoms with 1 to 4 carbon atoms respectively);

[0029] A i21 and A i22 Each can be used independently to represent 1,4-phenylene (one -CH= or two or more non-adjacent -CH= in this group can also be replaced by -N=, and one hydrogen atom in this group can also be replaced by an alkyl group with 1 to 4 carbon atoms, an alkoxy group with 1 to 4 carbon atoms, a cyano group, a fluorine atom, or a chlorine atom).

[0030] A i21 Or A i22 They can be the same or different.

[0031] The effects of the invention

[0032] The compositions of the present invention, which have positive or negative dielectric constant anisotropy, exhibit significantly reduced viscosity, good solubility at low temperatures, and minimal changes in resistivity and voltage retention due to heat and light. Therefore, the products are highly practical, and IPS-type and FFS-type liquid crystal display elements using these compositions can achieve high-speed response. Furthermore, because they exhibit stable performance during the liquid crystal display element manufacturing process, display defects caused by the process are suppressed, allowing for high-yield manufacturing, making them extremely useful. Detailed Implementation

[0033] The compositions of the present invention preferably exhibit a liquid crystal phase at room temperature (25°C), and more preferably a nematic phase. Furthermore, the compositions of the present invention suitably contain compounds with substantially neutral dielectric properties (Δε values ​​of -2 to 2), compounds with negative dielectric properties (Δε values ​​less than -2), and compounds with positive dielectric properties (Δε values ​​greater than 2). Moreover, the dielectric anisotropy of the compounds is obtained by interpolation from the measured values ​​of the dielectric anisotropy of compositions prepared by adding the compounds to substantially neutral dielectric compositions at 25°C. Furthermore, the following contents are expressed in % (mass percentage).

[0034] R i1 and R i2 Each alkenyl group independently represents an alkenyl group with 2 to 8 carbon atoms, preferably an alkenyl group with 2 to 5 carbon atoms.

[0035] Furthermore, when the ring structure to which it is attached is phenyl (aromatic), it is preferably an alkenyl group with 4 to 5 carbon atoms, and the ring structure to which it is attached is cyclohexane, pyran, or diphenylene oxide. In the case of saturated ring structures such as alkane, alkenyl groups with 2 to 5 carbon atoms are preferred. To stabilize the nematic phase, the total number of carbon atoms and oxygen atoms (if present) is preferably 5 or less, and a linear chain structure is preferred.

[0036] As an alkenyl group, it is preferably a group selected from any of the formulas (R1) to (R5) (the black dots in each formula represent carbon atoms in the ring structure), and if the ring structure to which it is attached is phenyl (aromatic), it is preferably a group represented by formula (R4) or (R5).

[0037] [Chemistry 2]

[0038]

[0039] X i1 The atom represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a cyano group, a fluorine atom, or a chlorine atom. When compatibility with other liquid crystal molecules is important, a fluorine atom or a methyl group is preferred, and a fluorine atom is even more preferred.

[0040] n i11 and n i12 Each can independently represent 0 or 1, n i11 +n i12 It represents 0 or 1. When compatibility with other liquid crystal molecules is important, it is preferred that both be 0.

[0041] n i21 and n i22 Each of the following can be independently represented as 0, 1, or 2, n i21 +n i22Representing 2, preferably n i21 It means 1 and n i22 Representing 1, preferably n i21 It means 2 and n i22 Representing 0, preferably n i21 It means 0 and n i22 Indicated as 2. When particular emphasis is placed on compatibility with other liquid crystal molecules, n is preferred. i21 It means 1 and n i22 Indicates 1.

[0042] In the existence of A i11 and A i12 In the case of , each of them independently represents 1,4-cyclohexylene (one -CH2- or two or more non-adjacent -CH2- in this group may also be replaced by -O-, and hydrogen atoms may also be independently replaced by alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, cyano groups, fluorine atoms, or chlorine atoms), more preferably, the following structures are represented.

[0043] [Chemistry 3]

[0044]

[0045] The preferred expression is trans-1,4-cyclohexylene.

[0046] A i21 and A i22 More preferably, the following structure is represented:

[0047] [Chemistry 4]

[0048]

[0049] Preferably, it represents 1,4-phenylene.

[0050] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, and 7%. The preferred upper limits of the contents of these compounds are 20%, 15%, 13%, 10%, and 9%.

[0051] There are no particular restrictions on the types of compounds that can be combined, but it is preferred to contain 1 to 3 types of these compounds, more preferably 1 to 4 types, and more preferably 2 types.

[0052] The compounds represented by formula (i) are preferably those represented by formulas (i-1) to (i-12), preferably those represented by formulas (i-4) to (i-9), and preferably those represented by formulas (i-4), (i-5), (i-7) and (i-8).

[0053] [Chemistry 5]

[0054]

[0055] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, and 7%. The preferred upper limits of the contents of these compounds are 20%, 15%, 13%, 10%, and 9%.

[0056] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable that the lower limit value is low and the upper limit value is low. When the viscosity of the composition of the present invention is kept low (T... NI In cases where a high level of temperature stability is required for the composition, it is preferable that both the lower and upper limits of the aforementioned values ​​are high. When it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable that both the lower and upper limits of the aforementioned values ​​are high. When it is desirable to have a larger Δn, it is preferable that both the lower and upper limits of the aforementioned values ​​are high.

[0057] The compositions of the present invention preferably contain one or more compounds selected from those represented by general formulas (N-1), (N-2), and (N-3). These compounds are equivalent to compounds with negative dielectric properties (Δε is negative and its absolute value is greater than 2).

[0058] [Chemistry 6]

[0059]

[0060] (where R is in the formula) N11 R N12 R N21 R N22 R N31 and R N32 Each of the alkyl groups having 1 to 8 carbon atoms can be independently represented, and one or more non-adjacent -CH2- atoms in the alkyl group can be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-.

[0061] A N11 A N12 A N21 A N22 A N31 and A N32 Each represents the freedom of choice independently.

[0062] (a) 1,4-cyclohexylene (one -CH2- or two or more non-adjacent -CH2- groups in this group may also be replaced by -O-),

[0063] (b) 1,4-Phenylidene (one -CH= or two or more non-adjacent -CH= groups in this group may also be substituted by -N=).

[0064] (c) Naphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl or decahydronaphthalene-2,6-diyl (one -CH= or two or more non-adjacent -CH= in naphthalene-2,6-diyl or 1,2,3,4-tetrahydronaphthalene-2,6-diyl may also be substituted by -N=), and

[0065] (d)1,4-cyclohexeneyl

[0066] The groups in the group, including groups (a), (b), (c) and (d), can also be independently replaced by cyano, fluorine or chlorine atoms, respectively;

[0067] Z N11 Z N12 Z N21 Z N22 Z N31 and Z N32 Each of these can be used to independently represent a single bond, -CH2CH2-, -(CH2)4-, -OCH2-, -CH2O-, -COO-, -OCO-, -OCF2-, -CF2O-, -CH=NN=CH-, -CH=CH-, -CF=CF-, or -C≡C-.

[0068] X N21 Indicates a hydrogen atom or a fluorine atom;

[0069] T N31 It represents -CH2- or oxygen atom;

[0070] n N11 n N12 n N21 n N22 n N31 and n N32 Each of the integers from 0 to 3 can be represented independently, n N11 +n N12 n N21 +n N22 and n N31 +n N32 Each of the following is independently 1, 2, or 3, and there are multiple A's. N11 ~A N32 Z N11 ~Z N32 In some cases, they can be the same or different.

[0071] The compounds represented by general formulas (N-1), (N-2) and (N-3) are preferably compounds with negative Δε and an absolute value greater than 3.

[0072] In general formulas (N-1), (N-2), and (N-3), R N11 R N12 R N21 R N22 R N31 and R N32 Each of the following is preferably an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms. It is more preferably an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkenyloxy group having 2 to 5 carbon atoms. It is even more preferably an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 3 carbon atoms. It is particularly preferably an alkenyl group having 3 carbon atoms (propenyl).

[0073] Furthermore, when the linked ring structure is phenyl (aromatic), it is preferably a straight-chain alkyl group with 1 to 5 carbon atoms, a straight-chain alkoxy group with 1 to 4 carbon atoms, or an alkenyl group with 4 to 5 carbon atoms, and the linked ring structure is cyclohexane, pyran, or diphenylene oxide. In the case of saturated ring structures such as alkane, the preferred structures are linear alkyl groups with 1 to 5 carbon atoms, linear alkoxy groups with 1 to 4 carbon atoms, and linear alkenyl groups with 2 to 5 carbon atoms. To stabilize the nematic phase, the total number of carbon atoms and, where present, oxygen atoms is preferably 5 or less, and a linear structure is preferred.

[0074] The alkenyl group is preferably a group selected from any of formulas (R1) to (R5). (The black dots in each formula represent carbon atoms in the ring structure.)

[0075] [Chemistry 7]

[0076]

[0077] When it is required to increase Δn, A N11 A N12 A N21 A N22 A N31 and A N32Each is preferably aromatic, and aliphatic to improve response speed. Preferably, it represents trans-1,4-cyclohexene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene, 2,3-difluoro-1,4-phenylene, 1,4-cyclohexenyl, 1,4-bicyclo[2.2.2]octylene, piperidine-1,4-diyl, naphthyl-2,6-diyl, decahydronaphthyl-2,6-diyl, or 1,2,3,4-tetrahydronaphthyl-2,6-diyl, and more preferably the following structures.

[0078] [Chemistry 8]

[0079]

[0080] More preferably, it represents trans-1,4-cyclohexene, 1,4-cyclohexenyl, or 1,4-phenylene.

[0081] Z N11 Z N12 Z N21 Z N22 Z N31 and Z N32 Each of the following is preferably represented independently as -CH2O-, -CF2O-, -CH2CH2-, -CF2CF2- or a single bond, more preferably as -CH2O-, -CH2CH2- or a single bond, and particularly preferably as -CH2O- or a single bond.

[0082] X N21 The preferred atom is fluorine.

[0083] T N31 Oxygen atoms are preferred.

[0084] n N11 +n N12 n N21 +n N22 and n N31 +n N32 Preferably 1 or 2, preferably n N11 =1 and n N12 Combinations of 0, n N11 2 and n N12 Combinations of 0, n N11 =1 and n N12 Combinations of 1, n N11 2 and n N12 Combinations of 1, n N21 =1 and n N22 Combinations of 0, n N21 2 and n N22 Combinations of 0, n N31 =1 and n N32 Combinations of 0, nN31 2 and n N32 Combinations with a value of 0.

[0085] The preferred lower limits of the content of the compound represented by formula (N-1) relative to the total amount of the composition of the present invention are 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, and 80%. The preferred upper limits of the content are 95%, 85%, 75%, 65%, 55%, 45%, 35%, 25%, and 20%.

[0086] The preferred lower limits of the content of the compound represented by formula (N-2) relative to the total amount of the composition of the present invention are 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, and 80%. The preferred upper limits of the content are 95%, 85%, 75%, 65%, 55%, 45%, 35%, 25%, and 20%.

[0087] The preferred lower limits of the content of the compound represented by formula (N-3) relative to the total amount of the composition of the present invention are 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, and 80%. The preferred upper limits of the content are 95%, 85%, 75%, 65%, 55%, 45%, 35%, 25%, and 20%.

[0088] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable that the lower limit value is low and the upper limit value is low. Furthermore, when the T of the composition of the present invention... NI In the case of compositions requiring high temperature stability, it is preferable to have both a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have both a high lower limit and a high upper limit.

[0089] As compounds represented by general formula (N-1), the following groups of compounds represented by general formulas (N-1a) to (N-1g) can be listed.

[0090] [Chemistry 9]

[0091]

[0092] (where R is in the formula) N11 and R N12 R represents the general formula (N-1) N11 and R N12 Same meaning, n Na11 n represents 0 or 1. Nb11 Indicates 1 or 2, n Nc11 n represents 0 or 1.Nd11 Indicates 1 or 2, n Ne11 Indicates 1 or 2, n Nf11 Indicates 1 or 2, n Ng11 A represents 1 or 2. Ne11 Indicates trans-1,4-cyclohexylene or 1,4-phenylene, A Ng11 It represents trans-1,4-cyclohexene, 1,4-cyclohexenyl, or 1,4-phenylene, but at least one represents 1,4-cyclohexenyl, Z Ne11 (This indicates a single bond or ethylene, but at least one indicates ethylene.)

[0093] More specifically, the compound represented by general formula (N-1) is preferably a compound selected from the group of compounds represented by general formulas (N-1-1) to (N-1-21).

[0094] The compounds represented by the general formula (N-1-1) are the following compounds.

[0095] [Chemistry 10]

[0096]

[0097] (where R is in the formula) N111 and R N112 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0098] R N111 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably propyl, pentyl, or vinyl. N112 Preferably, it is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and more preferably an ethoxy or butoxy group.

[0099] The compound represented by the general formula (N-1-1) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0100] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting the content to a lower level yields better results. Furthermore, when improving drip marks and burn-in characteristics, it is preferable to set the content range to a medium level.

[0101] The preferred lower limits of the content of the compound represented by formula (N-1-1) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, 20%, 23%, 25%, 27%, 30%, 33%, and 35%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 50%, 40%, 38%, 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, and 3%.

[0102] Furthermore, the compound represented by general formula (N-1-1) is preferably a compound selected from the group of compounds represented by formulas (N-1-1.1) to (N-1-1.23), preferably a compound represented by formulas (N-1-1.1) to (N-1-1.4), and more preferably a compound represented by formulas (N-1-1.1) and (N-1-1.3).

[0103] [Chemistry 11]

[0104]

[0105] The compounds represented by formulas (N-1-1.1) to (N-1-1.22) can be used alone or in combination. The preferred lower limits of the content of these compounds, individually or in combination, relative to the total amount of the compositions of the present invention, are 5%, 10%, 13%, 15%, 17%, 20%, 23%, 25%, 27%, 30%, 33%, and 35%. The preferred upper limits of the content relative to the total amount of the compositions of the present invention are 50%, 40%, 38%, 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, and 3%.

[0106] The compounds represented by the general formula (N-1-2) are the following compounds.

[0107] [Chemistry 12]

[0108]

[0109] (where R is in the formula) N121 and R N122 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0110] R N121 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, butyl, or pentyl. N122Preferably, it is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and more preferably methyl, propyl, methoxy, ethoxy, or propoxy.

[0111] The compounds represented by the general formula (N-1-2) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0112] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a lower content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0113] The preferred lower limits of the content of the compound represented by formula (N-1-2) relative to the total amount of the composition of the present invention are 5%, 7%, 10%, 13%, 15%, 17%, 20%, 23%, 25%, 27%, 30%, 33%, 35%, 37%, 40%, and 42%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 50%, 48%, 45%, 43%, 40%, 38%, 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6%, and 5%.

[0114] Furthermore, the compound represented by general formula (N-1-2) is preferably selected from the group of compounds represented by formulas (N-1-2.1) to (N-1-2.22), and more preferably the compounds represented by formulas (N-1-2.3) to (N-1-2.7), (N-1-2.10), (N-1-2.11), (N-1-2.13) and (N-1-2.20). Where the improvement of Δε is emphasized, the compounds represented by formulas (N-1-2.3) to (N-1-2.7) are preferred. Where the improvement of T is emphasized... NI In the case of improvements, compounds represented by formulas (N-1-2.10), (N-1-2.11) and (N-1-2.13) are preferred, and in the case of improvements in response speed, compounds represented by formula (N-1-2.20) are preferred.

[0115] [Chemistry 13]

[0116]

[0117] The compounds represented by formulas (N-1-2.1) to (N-1-2.22) can be used alone or in combination. The preferred lower limits of the content of these compounds, alone or in combination, relative to the total amount of the compositions of the present invention, are 5%, 10%, 13%, 15%, 17%, 20%, 23%, 25%, 27%, 30%, 33%, and 35%. The preferred upper limits of the content relative to the total amount of the compositions of the present invention are 50%, 40%, 38%, 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, and 3%.

[0118] The compounds represented by the general formula (N-1-3) are the following compounds.

[0119] [Chemistry 14]

[0120]

[0121] (where R is in the formula) N131 and R N132 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0122] R N131 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, or butyl. N132 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 3 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably 1-propenyl, ethoxy, propoxy, or butoxy.

[0123] The compounds represented by the general formula (N-1-3) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0124] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0125] The preferred lower limits of the content of the compound represented by formula (N-1-3) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0126] Furthermore, the compound represented by general formula (N-1-3) is preferably a compound selected from the group of compounds represented by formulas (N-1-3.1) to (N-1-3.21), preferably a compound represented by formulas (N-1-3.1) to (N-1-3.7) and (N-1-3.21), and preferably a compound represented by formulas (N-1-3.1), (N-1-3.2), (N-1-3.3), (N-1-3.4) and (N-1-3.6).

[0127] [Chemistry 15]

[0128]

[0129] The compounds represented by formulas (N-1-3.1) to (N-1-3.4), (N-1-3.6), and (N-1-3.21) can be used alone or in combination, preferably combinations of formulas (N-1-3.1) and (N-1-3.2), or combinations of two or three selected from formulas (N-1-3.3), (N-1-3.4), and (N-1-3.6). The preferred lower limits of the content of these compounds, individually or individually, relative to the total amount of the compositions of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content, relative to the total amount of the compositions of the present invention, are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0130] The compounds represented by the general formula (N-1-4) are the following compounds.

[0131] [Chemistry 16]

[0132]

[0133] (where R is in the formula) N141 and R N142 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0134] R N141 and R N142Each of the following is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and is preferably methyl, propyl, ethoxy, or butoxy.

[0135] The compounds represented by the general formula (N-1-4) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0136] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting the content to a lower level yields better results. Furthermore, when improving drip marks and burn-in characteristics, it is preferable to set the content range to a medium level.

[0137] The preferred lower limits of the content of the compound represented by formula (N-1-4) relative to the total amount of the composition of the present invention are 3%, 5%, 7%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 11%, 10%, and 8%.

[0138] Furthermore, the compound represented by general formula (N-1-4) is preferably a compound selected from the group of compounds represented by formulas (N-1-4.1) to (N-1-4.14), preferably a compound represented by formulas (N-1-4.1) to (N-1-4.4), and more preferably a compound represented by formulas (N-1-4.1), (N-1-4.2) and (N-1-4.4).

[0139] [Chemistry 17]

[0140]

[0141] The compounds represented by formulas (N-1-4.1) to (N-1-4.14) can be used alone or in combination. The preferred lower limits of the content of these compounds, individually or in combination, relative to the total amount of the compositions of the present invention, are 3%, 5%, 7%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content, relative to the total amount of the compositions of the present invention, are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 11%, 10%, and 8%.

[0142] The compounds represented by the general formula (N-1-5) are the following compounds.

[0143] [Chemistry 18]

[0144]

[0145] (where R is in the formula) N151 and R N152 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0146] R N151 and R N152 Each of the following is preferred to be an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, preferably ethyl, propyl, or butyl.

[0147] The compounds represented by the general formula (N-1-5) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0148] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a lower content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0149] The preferred lower limits of the content of the compound represented by formula (N-1-5) relative to the total amount of the composition of the present invention are 5%, 8%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0150] Furthermore, the compound represented by general formula (N-1-5) is preferably a compound selected from the group of compounds represented by formulas (N-1-5.1) to (N-1-5.6), and more preferably a compound represented by formulas (N-1-5.1), (N-1-5.2) and (N-1-5.4).

[0151] [Chemistry 19]

[0152]

[0153] The compounds represented by formulas (N-1-5.1), (N-1-5.2), and (N-1-5.4) can be used alone or in combination. The preferred lower limits of the content of these compounds, individually or in combination, relative to the total amount of the compositions of the present invention, are 5%, 8%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content, relative to the total amount of the compositions of the present invention, are 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0154] The compounds represented by the general formula (N-1-10) are the following compounds.

[0155] [Chemistry 20]

[0156]

[0157] (where R is in the formula) N1101 and R N1102 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0158] R N1101 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, butyl, vinyl, or 1-propenyl. N1102 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably an ethoxy, propoxy, or butoxy group.

[0159] The compounds represented by the general formula (N-1-10) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0160] When prioritizing the improvement of Δε, a higher content is preferable. Similarly, when prioritizing solubility at low temperatures, a higher content yields better results. And when prioritizing T... NI In such cases, setting the content to a higher level yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to a medium level.

[0161] The preferred lower limits of the content of the compound represented by formula (N-1-10) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0162] Furthermore, the compound represented by general formula (N-1-10) is preferably a compound selected from the group of compounds represented by formulas (N-1-10.1) to (N-1-10.21), preferably a compound represented by formulas (N-1-10.1) to (N-1-10.5), (N-1-10.20) and (N-1-10.21), and even more preferably a compound represented by formulas (N-1-10.1), (N-1-10.2), (N-1-10.20) and (N-1-10.21).

[0163] [Chemistry 21]

[0164]

[0165] The compounds represented by formulas (N-1-10.1), (N-1-10.2), (N-1-10.20), and (N-1-10.21) can be used alone or in combination. The preferred lower limits of the content of these compounds, individually or individually, relative to the total amount of the compositions of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content, relative to the total amount of the compositions of the present invention, are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0166] The compounds represented by the general formula (N-1-11) are the following compounds.

[0167] [Chemistry 22]

[0168]

[0169] (where R is in the formula) N1111 and R N1112 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0170] R N1111 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, butyl, vinyl, or 1-propenyl. N1112 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably an ethoxy, propoxy, or butoxy group.

[0171] The compounds represented by the general formula (N-1-11) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0172] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a lower content yields better results; and when prioritizing T... NI In such cases, setting the content to a higher level yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to a medium level.

[0173] The preferred lower limits of the content of the compound represented by formula (N-1-11) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0174] Furthermore, the compound represented by general formula (N-1-11) is preferably a compound selected from the group of compounds represented by formulas (N-1-11.1) to (N-1-11.15), preferably a compound represented by formulas (N-1-11.1) to (N-1-11.15), and preferably a compound represented by formulas (N-1-11.2) and (N-1-11.4).

[0175] [Chemistry 23]

[0176]

[0177] The compounds represented by formulas (N-1-11.2) and (N-1-11.4) can be used alone or in combination. The preferred lower limits of the content of these compounds, individually or in combination, relative to the total amount of the compositions of the present invention, are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content, relative to the total amount of the compositions of the present invention, are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0178] The compounds represented by the general formula (N-1-12) are the following compounds.

[0179] [Chemistry 24]

[0180]

[0181] (where R is in the formula) N1121 and R N1122 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0182] R N1121 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, or butyl. N1122 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably an ethoxy, propoxy, or butoxy group.

[0183] The compounds represented by the general formula (N-1-12) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0184] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0185] The preferred lower limits of the content of the compound represented by formula (N-1-12) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0186] The compounds represented by the general formula (N-1-13) are the following compounds.

[0187] [Chemistry 25]

[0188]

[0189] (where R is in the formula) N1131 and R N1132 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0190] R N1131Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, or butyl. N1132 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably an ethoxy, propoxy, or butoxy group.

[0191] The compounds represented by the general formula (N-1-13) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0192] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0193] The preferred lower limits of the content of the compound represented by formula (N-1-13) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0194] The compounds represented by the general formula (N-1-14) are the following compounds.

[0195] [Chemistry 26]

[0196]

[0197] (where R is in the formula) N1141 and R N1142 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0198] R N1141 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, or butyl. N1142 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably an ethoxy, propoxy, or butoxy group.

[0199] The compound represented by the general formula (N-1-14) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0200] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0201] The preferred lower limits of the content of the compound represented by formula (N-1-14) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0202] The compounds represented by the general formula (N-1-15) are the following compounds.

[0203] [Chemistry 27]

[0204]

[0205] (where R is in the formula) N1151 and R N1152 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0206] R N1151 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, or butyl. N1152 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably an ethoxy, propoxy, or butoxy group.

[0207] The compounds represented by the general formula (N-1-15) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0208] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0209] The preferred lower limits of the content of the compound represented by formula (N-1-15) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0210] The compounds represented by the general formula (N-1-16) are the following compounds.

[0211] [Chemistry 28]

[0212]

[0213] (where R is in the formula) N1161 and R N1162 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0214] R N1161 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, or butyl. N1162 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably an ethoxy, propoxy, or butoxy group.

[0215] The compounds represented by the general formula (N-1-16) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0216] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0217] The preferred lower limits of the content of the compound represented by formula (N-1-16) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0218] The compounds represented by the general formula (N-1-17) are the following compounds.

[0219] [Chemistry 29]

[0220]

[0221] (where R is in the formula) N1171 and R N1172 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0222] R N1171 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably ethyl, propyl, or butyl. N1172 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably an ethoxy, propoxy, or butoxy group.

[0223] The compound represented by the general formula (N-1-17) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0224] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0225] The preferred lower limits of the content of the compound represented by formula (N-1-17) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0226] The compounds represented by the general formula (N-1-18) are the following compounds.

[0227] [Chemistry 30]

[0228]

[0229] (where R is in the formula) N1181 and R N1182 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0230] R N1181 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and more preferably methyl, ethyl, propyl, or butyl. N1182 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and more preferably an ethoxy, propoxy, or butoxy group.

[0231] The compounds represented by the general formula (N-1-18) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0232] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0233] The preferred lower limits of the content of the compound represented by formula (N-1-18) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0234] Furthermore, the compound represented by general formula (N-1-18) is preferably a compound selected from the group of compounds represented by formulas (N-1-18.1) to (N-1-18.5), preferably a compound represented by formulas (N-1-18.1) to (N-1-11.3), and preferably a compound represented by formulas (N-1-18.2) and (N-1-18.3).

[0235] [Chemistry 31]

[0236]

[0237] The compounds represented by the general formula (N-1-20) are the following compounds.

[0238] [Chemistry 32]

[0239]

[0240] (where R is in the formula) N1201 and R N1202 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0241] R N1201 and R N1202 Each of the following is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and is preferably ethyl, propyl, or butyl.

[0242] The compounds represented by the general formula (N-1-20) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0243] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0244] The preferred lower limits of the content of the compound represented by formula (N-1-20) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0245] The compounds represented by the general formula (N-1-21) are the following compounds.

[0246] [Chemistry 33]

[0247]

[0248] (where R is in the formula) N1211and R N1212 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0249] R N1211 and R N1212 Each of the following is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and is preferably ethyl, propyl, or butyl.

[0250] The compounds represented by the general formula (N-1-21) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0251] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0252] The preferred lower limits of the content of the compound represented by formula (N-1-21) relative to the total amount of the composition of the present invention are 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0253] The compounds represented by the general formula (N-1-22) are the following compounds.

[0254] [Chemistry 34]

[0255]

[0256] (where R is in the formula) N1221 and R N1222 Represent R independently in the general formula (N-1) N11 and R N12 Same meaning.

[0257] R N1221 and R N1222 Each of the following is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and is preferably ethyl, propyl, or butyl.

[0258] The compounds represented by the general formula (N-1-22) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0259] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting a higher content yields better results. Furthermore, when improving dripping and burn-in characteristics, it is preferable to set the content range to medium.

[0260] The preferred lower limits of the content of the compound represented by formula (N-1-21) relative to the total amount of the composition of the present invention are 1%, 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, and 5%.

[0261] Furthermore, the compound represented by general formula (N-1-22) is preferably a compound selected from the group of compounds represented by formulas (N-1-22.1) to (N-1-22.12), preferably a compound represented by formulas (N-1-22.1) to (N-1-22.5), and more preferably a compound represented by formulas (N-1-22.1) to (N-1-22.4).

[0262] [Chemistry 35]

[0263]

[0264] The compound represented by general formula (N-3) is preferably a compound selected from the group of compounds represented by general formula (N-3-2).

[0265] [Chemistry 36]

[0266]

[0267] (where R is in the formula) N321 and R N322 Represent R independently in the general formula (N-3) N11 and R N12 Same meaning.

[0268] R N321 and R N322Preferably, it is an alkyl group with 1 to 5 carbon atoms or an alkenyl group with 2 to 5 carbon atoms, and more preferably propyl or pentyl.

[0269] The compound represented by the general formula (N-3-2) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0270] When prioritizing the improvement of Δε, a higher content is preferable; when prioritizing solubility at low temperatures, a higher content yields better results; and when prioritizing T... NI In such cases, setting the content to a lower level yields better results. Furthermore, when improving drip marks and burn-in characteristics, it is preferable to set the content range to a medium level.

[0271] The preferred lower limits of the content of the compound represented by formula (N-3-2) relative to the total amount of the composition of the present invention are 3%, 5%, 10%, 13%, 15%, 17%, 20%, 23%, 25%, 27%, 30%, 33%, and 35%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 50%, 40%, 38%, 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6%, and 5%.

[0272] Furthermore, the compound represented by general formula (N-3-2) is preferably a compound selected from the group of compounds represented by formulas (N-3-2.1) to (N-3-2.3).

[0273] [Chemistry 37]

[0274]

[0275] The compositions of the present invention preferably contain one or more compounds represented by the general formula (J). These compounds are equivalent to compounds with positive dielectric properties (Δε greater than 2).

[0276] [Chemistry 38]

[0277]

[0278] (where R is in the formula) J1 The alkyl group having 1 to 8 carbon atoms may have one or more non-adjacent -CH2- atoms that can be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -COO-, or -OCO-.

[0279] n J1 It represents 0, 1, 2, 3, or 4;

[0280] A J1 A J2 and A J3 Each represents the freedom of choice independently.

[0281] (a) 1,4-cyclohexylene (one -CH2- or two or more non-adjacent -CH2- groups in this group may also be replaced by -O-),

[0282] (b) 1,4-phenylene (one -CH= or two or more non-adjacent -CH= groups in this group may also be substituted by -N=), and

[0283] (c) Naphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl or decahydronaphthalene-2,6-diyl (one -CH= or two or more non-adjacent -CH= in naphthalene-2,6-diyl or 1,2,3,4-tetrahydronaphthalene-2,6-diyl may also be replaced by -N=)

[0284] The groups in the group, including groups (a), (b) and (c), may also be independently replaced by cyano, fluorine, chlorine, methyl, trifluoromethyl or trifluoromethoxy groups;

[0285] Z J1 and Z J2 Each can independently represent a single bond, -CH2CH2-, -(CH2)4-, -OCH2-, -CH2O-, -OCF2-, -CF2O-, -COO-, -OCO-, or -C≡C-;

[0286] In n J1 It is 2, 3 or 4 and there are multiple A's. J2 In the case of n, they can be the same or different. J1 It is 2, 3, or 4 and there are multiple Z. J1 In this case, they can be the same or different;

[0287] X J1 This represents a hydrogen atom, fluorine atom, chlorine atom, cyano group, trifluoromethyl group, fluoromethoxy group, difluoromethoxy group, trifluoromethoxy group, or 2,2,2-trifluoroethyl group.

[0288] In the general formula (J), R J1Preferably, it is an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms; more preferably, it is an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkenyloxy group having 2 to 5 carbon atoms; even more preferably, it is an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 3 carbon atoms; and particularly preferably, it is an alkenyl group having 3 carbon atoms (propenyl).

[0289] With reliability as a priority, R J1 Alkyl groups are preferred, and alkenyl groups are preferred when reducing viscosity is a priority.

[0290] Furthermore, when the linked ring structure is phenyl (aromatic), it is preferably a straight-chain alkyl group with 1 to 5 carbon atoms, a straight-chain alkoxy group with 1 to 4 carbon atoms, or an alkenyl group with 4 to 5 carbon atoms, and the linked ring structure is cyclohexane, pyran, or diphenylene oxide. In the case of saturated ring structures such as alkane, the preferred structures are linear alkyl groups with 1 to 5 carbon atoms, linear alkoxy groups with 1 to 4 carbon atoms, and linear alkenyl groups with 2 to 5 carbon atoms. To stabilize the nematic phase, the total number of carbon atoms and, where present, oxygen atoms is preferably 5 or less, and a linear structure is preferred.

[0291] The alkenyl group is preferably a group selected from any of formulas (R1) to (R5). (The black dots in each formula represent carbon atoms in the ring structure to which the alkenyl group is attached.)

[0292] [Chemistry 39]

[0293]

[0294] When it is required to increase Δn, A J1 A J2 and A J3 Each of the following structures is preferably aromatic, and aliphatic to improve response speed. It is preferably represented by trans-1,4-cyclohexylene, 1,4-phenylene, 1,4-cyclohexenylene, 1,4-bicyclo[2.2.2]octylene, piperidine-1,4-diyl, naphthyl-2,6-diyl, decahydronaphthyl-2,6-diyl, or 1,2,3,4-tetrahydronaphthyl-2,6-diyl, which may be substituted with fluorine atoms. More preferably, it represents the following structures.

[0295] [Chemistry 40]

[0296]

[0297] More preferably, the following structure is represented.

[0298] [Chemistry 41]

[0299]

[0300] Z J1 and Z J2 Each of the following is preferably represented independently as -CH2O-, -OCH2-, -CF2O-, -CH2CH2-, -CF2CF2- or a single bond, more preferably as -OCH2-, -CF2O-, -CH2CH2- or a single bond, and particularly preferably as -OCH2-, -CF2O- or a single bond.

[0301] X J1 Preferably, it contains fluorine atoms or trifluoromethoxy groups, with fluorine atoms being the most preferred.

[0302] n J1 The preferred values ​​are 0, 1, 2, or 3, with 0, 1, or 2 being preferred. When the focus is on improving Δε, 0 or 1 is preferred. When T is emphasized... NI In this case, 1 or 2 is preferred.

[0303] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three compounds are used. Furthermore, in another embodiment of the present invention, four, five, six, or seven or more compounds are used.

[0304] In the compositions of the present invention, the content of the compound represented by the general formula (J) must be appropriately adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, process adaptability, drip marks, burn-in, and dielectric anisotropy.

[0305] The lower limit of the preferred content of the compound represented by general formula (J) relative to the total amount of the composition of the present invention is 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, or 80%. The upper limit of the preferred content, for example in one embodiment of the present invention, is 95%, 85%, 75%, 65%, 55%, 45%, 35%, or 25% relative to the total amount of the composition of the present invention.

[0306] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NIIn cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0307] With reliability as a priority, R J1 Alkyl groups are preferred, and alkenyl groups are preferred when reducing viscosity is a priority.

[0308] The compounds represented by general formula (J) are preferably those represented by general formula (M) and general formula (K).

[0309] The compositions of the present invention preferably contain one or more compounds represented by the general formula (M). These compounds are equivalent to compounds with positive dielectric properties (Δε greater than 2).

[0310] [Chemistry 42]

[0311]

[0312] (where R is in the formula) M1 The alkyl group having 1 to 8 carbon atoms may have one or more non-adjacent -CH2- atoms that can be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -COO-, or -OCO-.

[0313] n M1 It represents 0, 1, 2, 3, or 4;

[0314] A M1 and A M2 Each represents the freedom of choice independently.

[0315] (a) 1,4-cyclohexylene (one -CH2- or two or more non-adjacent -CH2- groups in this group may also be replaced by -O- or -S-) and

[0316] (b) 1,4-Phenylidene (one -CH= or two or more non-adjacent -CH= groups in this group may also be substituted by -N=)

[0317] The hydrogen atoms on the groups (a) and (b) in the group can also be independently replaced by cyano, fluorine or chlorine atoms, respectively;

[0318] Z M1 and Z M2 Each can independently represent a single bond, -CH2CH2-, -(CH2)4-, -OCH2-, -CH2O-, -OCF2-, -CF2O-, -COO-, -OCO-, or -C≡C-;

[0319] In n M1 It is 2, 3 or 4 and there are multiple A's. M2 In the case of n, they can be the same or different. M1 It is 2, 3, or 4 and there are multiple Z. M1 In this case, they can be the same or different;

[0320] X M1 and X M3 Each can be used independently to represent a hydrogen atom, a chlorine atom, or a fluorine atom;

[0321] X M2 It represents a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a fluoromethoxy group, a difluoromethoxy group, a trifluoromethoxy group, or a 2,2,2-trifluoroethyl group.

[0322] In the general formula (M), R M1 Preferably, it is an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms; more preferably, it is an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkenyloxy group having 2 to 5 carbon atoms; even more preferably, it is an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 3 carbon atoms; and particularly preferably, it is an alkenyl group having 3 carbon atoms (propenyl).

[0323] With reliability as a priority, R M1 Alkyl groups are preferred, and alkenyl groups are preferred when reducing viscosity is a priority.

[0324] Furthermore, when the linked ring structure is phenyl (aromatic), it is preferably a straight-chain alkyl group with 1 to 5 carbon atoms, a straight-chain alkoxy group with 1 to 4 carbon atoms, or an alkenyl group with 4 to 5 carbon atoms, and the linked ring structure is cyclohexane, pyran, or diphenylene oxide. In the case of saturated ring structures such as alkane, the preferred structures are linear alkyl groups with 1 to 5 carbon atoms, linear alkoxy groups with 1 to 4 carbon atoms, and linear alkenyl groups with 2 to 5 carbon atoms. To stabilize the nematic phase, the total number of carbon atoms and, where present, oxygen atoms is preferably 5 or less, and a linear structure is preferred.

[0325] The alkenyl group is preferably a group selected from any of formulas (R1) to (R5). (The black dots in each formula represent carbon atoms in the ring structure to which the alkenyl group is attached.)

[0326] [Chemistry 43]

[0327]

[0328] When the requirement is to increase Δn, AM1 and A M2 Each is preferably aromatic, and aliphatic to improve response speed. Preferably, it represents trans-1,4-cyclohexene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene, 2,3-difluoro-1,4-phenylene, 1,4-cyclohexenyl, 1,4-bicyclo[2.2.2]octylene, piperidine-1,4-diyl, naphthyl-2,6-diyl, decahydronaphthyl-2,6-diyl, or 1,2,3,4-tetrahydronaphthyl-2,6-diyl, and more preferably the following structures.

[0329] [Chemistry 44]

[0330]

[0331] More preferably, the following structure is represented.

[0332] [Chemistry 45]

[0333]

[0334] Z M1 and Z M2 Each of the following is preferably represented independently as -CH2O-, -CF2O-, -CH2CH2-, -CF2CF2- or a single bond, more preferably as -CF2O-, -CH2CH2- or a single bond, and particularly preferably as -CF2O- or a single bond.

[0335] n M1 The preferred values ​​are 0, 1, 2, or 3, with 0, 1, or 2 being preferred. When the focus is on improving Δε, 0 or 1 is preferred. When T is emphasized... NI In this case, 1 or 2 is preferred.

[0336] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three compounds are used. Furthermore, in another embodiment of the present invention, four, five, six, or seven or more compounds are used.

[0337] In the compositions of the present invention, the content of the compound represented by the general formula (M) must be appropriately adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, process adaptability, drip marks, burn-in, and dielectric anisotropy.

[0338] The lower limit of the preferred content of the compound represented by formula (M) relative to the total amount of the composition of the present invention is 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, or 80%. The upper limit of the preferred content, for example in one embodiment of the present invention, is 95%, 85%, 75%, 65%, 55%, 45%, 35%, or 25% relative to the total amount of the composition of the present invention.

[0339] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI In cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0340] The compound represented by general formula (M) is preferably a compound selected, for example, from the group of compounds represented by general formula (M-1).

[0341] [Chemistry 46]

[0342]

[0343] (where R is in the formula) M11 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M11 To X M15 Y represents either a hydrogen atom or a fluorine atom independently. M11 (This represents a fluorine atom or OCF3.)

[0344] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three or more compounds may be used.

[0345] The preferred lower limits of the content of the compound represented by formula (M-1) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0346] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI In cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0347] Furthermore, the compound represented by general formula (M-1) is preferably a compound represented by formulas (M-1.1) to (M-1.4), more preferably a compound represented by formula (M-1.1) or (M-1.2), and more preferably a compound represented by formula (M-1.2). Additionally, it is also preferable to use compounds represented by both formula (M-1.1) and (M-1.2).

[0348] [Chemistry 47]

[0349]

[0350] The preferred lower limits of the content of the compound represented by formula (M-1.1) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, and 6%. The preferred upper limits of the content are 15%, 13%, 10%, 8%, and 5%.

[0351] The preferred lower limits of the content of the compound represented by formula (M-1.2) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, and 6%. The preferred upper limits of the content are 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, and 8%.

[0352] The preferred lower limit of the total content of the compounds represented by formulas (M-1.1) and (M-1.2) relative to the total amount of the compositions of the present invention is 1%, 2%, 5%, and 6%. The preferred upper limit of the content is 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, and 8%.

[0353] Furthermore, the compound represented by general formula (M) is preferably a compound selected, for example, from the group of compounds represented by general formula (M-2).

[0354] [Chemistry 48]

[0355]

[0356] (where R is in the formula) M21 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M21 and XM22 Y represents either a hydrogen atom or a fluorine atom independently. M21 This indicates a fluorine atom, a chlorine atom, or OCF3.

[0357] The preferred lower limits of the content of the compound represented by formula (M-1) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0358] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI When maintaining a high level of dielectric constant and requiring a composition that is unlikely to cause burn-in, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0359] Furthermore, the compound represented by general formula (M-2) is preferably the compound represented by formula (M-2.1) to formula (M-2.5), and more preferably the compound represented by formula (M-2.3) or / and formula (M-2.5).

[0360] [Chemistry 49]

[0361]

[0362] The preferred lower limits of the content of the compound represented by formula (M-2.2) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, and 6%. The preferred upper limits are 15%, 13%, 10%, 8%, and 5%.

[0363] The preferred lower limits of the content of the compound represented by formula (M-2.3) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, and 6%. The preferred upper limits of the content are 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, and 8%.

[0364] The preferred lower limits of the content of the compound represented by formula (M-2.5) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, and 6%. The preferred upper limits of the content are 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, and 8%.

[0365] The preferred lower limits for the total content of the compounds represented by formulas (M-2.2), (M-2.3), and (M-2.5) relative to the total amount of the compositions of the present invention are 1%, 2%, 5%, and 6%, respectively. The preferred upper limits are 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, and 8%, respectively.

[0366] The content is preferably 1% or more relative to the total amount of the composition of the present invention, more preferably 5% or more, more preferably 8% or more, more preferably 10% or more, more preferably 14% or more, and particularly preferably 16% or more. Furthermore, considering solubility at low temperatures, transition temperature, electrical reliability, etc., it is preferable that the maximum ratio is 30% or less, more preferably 25% or less, more preferably 22% or less, and particularly preferably less than 20%.

[0367] The compounds represented by general formula (M) used in the compositions of the present invention are preferably compounds represented by general formula (M-3).

[0368] [Transformation 50]

[0369]

[0370] (where R is in the formula) M31 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M31 To X M36 Y represents either a hydrogen atom or a fluorine atom independently. M31 This indicates a fluorine atom, a chlorine atom, or OCF3.

[0371] There are no particular restrictions on the compounds that can be combined. Considering factors such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence, it is preferable to combine one or more compounds.

[0372] Regarding the content of the compound represented by the general formula (M-3), considering characteristics such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence, each embodiment has its upper and lower limits.

[0373] The preferred lower limits of the content of the compound represented by formula (M-3) relative to the total amount of the composition of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0374] Furthermore, the compounds represented by general formula (M-3) used in the compositions of the present invention are preferably compounds represented by formulas (M-3.1) to (M-3.8), among which, it is preferred to include compounds represented by formulas (M-3.1) and / or (M-3.2).

[0375] [Chemistry 51]

[0376]

[0377] The preferred lower limits of the content of the compound represented by formula (M-3.1) relative to the total amount of the composition of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0378] The preferred lower limits of the content of the compound represented by formula (M-3.2) relative to the total amount of the composition of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0379] The preferred lower limits for the total content of the compounds represented by formulas (M-3.1) and (M-3.2) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0380] Furthermore, the compound represented by general formula (M) is preferably a compound selected from the group represented by general formula (M-4).

[0381] [Chemistry 52]

[0382]

[0383] (where R is in the formula) M41 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M41 To X M48 Y represents either a fluorine atom or a hydrogen atom independently. M41 This indicates a fluorine atom, a chlorine atom, or OCF3.

[0384] There are no particular restrictions on the compounds that can be combined. Considering factors such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence, it is preferable to combine one, two, or three or more compounds.

[0385] Regarding the content of the compound represented by the general formula (M-4), each embodiment has an upper and lower limit value considering characteristics such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.

[0386] The preferred lower limits of the content of the compound represented by formula (M-4) relative to the total amount of the composition of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0387] When the composition of the present invention is used for liquid crystal display elements with small cell gaps, it is suitable to have a higher content of the compound represented by general formula (M-4). When used for liquid crystal display elements with low driving voltages, it is suitable to have a higher content of the compound represented by general formula (M-4). Furthermore, when used for liquid crystal display elements for use in low-temperature environments, it is suitable to have a lower content of the compound represented by general formula (M-4). When the composition is for a liquid crystal display element with a fast response speed, it is suitable to have a lower content of the compound represented by general formula (M-4).

[0388] Furthermore, the compounds represented by general formula (M-4) used in the compositions of the present invention are preferably compounds represented by formulas (M-4.1) to (M-4.4), wherein, it is more preferably to contain compounds represented by formulas (M-4.2) to (M-4.4), and more preferably to contain compounds represented by formula (M-4.2).

[0389] [Chemistry 53]

[0390]

[0391] In addition, it is preferred to contain one or more compounds selected from those represented by general formulas (M-3) and (M-4). The preferred lower limit of the total content of the compounds represented by general formulas (M-3) and (M-4) relative to the total amount of the composition of the present invention is 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, and the preferred upper limit of the content is 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 5%.

[0392] Furthermore, the compound represented by general formula (M) is preferably the compound represented by general formula (M-5).

[0393] [Chemistry 54]

[0394]

[0395] (where R is in the formula) M51 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M51 and X M52 Y represents either a hydrogen atom or a fluorine atom independently. M51 This indicates a fluorine atom, a chlorine atom, or OCF3.

[0396] There is no limitation on the types of compounds that can be combined. Considering factors such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence, appropriate combinations can be used in each embodiment. For example, in one embodiment of the present invention, there is one type; in another embodiment, there is a combination of two types; in yet another embodiment, there is a combination of three types; in yet another embodiment, there is a combination of four types; in yet another embodiment, there is a combination of five types; and in yet another embodiment, there are six or more types.

[0397] The preferred lower limits of the content of the compound represented by formula (M-5) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits of the content are 50%, 45%, 40%, 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0398] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI When maintaining a high level of dielectric constant and requiring a composition that is unlikely to cause burn-in, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0399] Furthermore, the compound represented by general formula (M-5) is preferably the compound represented by formula (M-5.1) to formula (M-5.4), and even more preferably the compound represented by formula (M-5.1) to formula (M-5.4).

[0400] [Chemistry 55]

[0401]

[0402] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, and 15%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0403] Furthermore, the compound represented by general formula (M-5) is preferably the compound represented by formulas (M-5.11) to (M-5.17), and more preferably the compound represented by formulas (M-5.11), (M-5.13) and (M-5.17).

[0404] [Chemistry 56]

[0405]

[0406] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, and 15%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0407] Furthermore, the compound represented by general formula (M-5) is preferably the compound represented by formula (M-5.21) to formula (M-5.28), and more preferably the compound represented by formula (M-5.21), formula (M-5.22), formula (M-5.23) and formula (M-5.25).

[0408] [Chemistry 57]

[0409]

[0410] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits are 40%, 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0411] Furthermore, the compound represented by general formula (M) is preferably the compound represented by general formula (M-6).

[0412] [Chem.58]

[0413]

[0414] (where R is in the formula) M61 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M61 To X M64 Y represents either a fluorine atom or a hydrogen atom independently. M61 This indicates a fluorine atom, a chlorine atom, or OCF3.

[0415] There are no restrictions on the types of compounds that can be combined. Appropriate combinations can be made in each embodiment, taking into account factors such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence.

[0416] The preferred lower limits of the content of the compound represented by formula (M-6) relative to the total amount of the composition of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0417] When the composition of the present invention is used for liquid crystal display elements with low driving voltage, it is suitable to have a higher content of the compound represented by general formula (M-6). Conversely, when the composition is used for liquid crystal display elements with fast response speed, it is suitable to have a lower content of the compound represented by general formula (M-6).

[0418] Furthermore, the compounds represented by general formula (M-6) are preferably compounds represented by formulas (M-6.1) to (M-6.4), among which compounds represented by formulas (M-6.2) and (M-6.4) are more preferred.

[0419] [Chemistry 59]

[0420]

[0421] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0422] Furthermore, the compounds represented by general formula (M-6) are preferably compounds represented by formulas (M-6.11) to (M-6.14), among which, compounds represented by formulas (M-6.12) and (M-6.14) are preferred.

[0423] [Transformation 60]

[0424]

[0425] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0426] Furthermore, the compounds represented by general formula (M-6) are preferably compounds represented by formulas (M-6.21) to (M-6.24), among which, compounds represented by formulas (M-6.21), (M-6.22) and (M-6.24) are more preferred.

[0427] [Chemistry 61]

[0428]

[0429] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0430] Furthermore, the compounds represented by general formula (M-6) are particularly preferred to be those represented by formulas (M-6.31) to (M-6.34). Among these, compounds represented by formulas (M-6.31) and (M-6.32) are preferred.

[0431] [Chemistry 62]

[0432]

[0433] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0434] Furthermore, the compounds represented by general formula (M-6) are preferably compounds represented by formulas (M-6.41) to (M-6.44), among which, compounds represented by formula (M-6.42) are preferred.

[0435] [Chemistry 63]

[0436]

[0437] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0438] Furthermore, the compound represented by general formula (M) is preferably a compound selected from the group of compounds represented by general formula (M-7).

[0439] [Chemistry 64]

[0440]

[0441] (where X) M71 To X M76 Each can be used to independently represent a fluorine atom or a hydrogen atom, R M71 Y represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M71 (This represents a fluorine atom or OCF3.)

[0442] There are no particular restrictions on the types of compounds that can be combined, but it is preferable to contain 1 to 2 types of these compounds, more preferably 1 to 3 types, and even more preferably 1 to 4 types.

[0443] Regarding the content of the compound represented by the general formula (M-7), considering characteristics such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence, there are upper and lower limits for each embodiment.

[0444] The preferred lower limits of the content of the compound represented by formula (M-7) relative to the total amount of the composition of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0445] When the composition of the present invention is used for liquid crystal display elements with small cell gaps, it is suitable to have a higher content of the compound represented by general formula (M-7). When used for liquid crystal display elements with low driving voltages, it is suitable to have a higher content of the compound represented by general formula (M-7). Furthermore, when used for liquid crystal display elements for use in low-temperature environments, it is suitable to have a lower content of the compound represented by general formula (M-7). When the composition is for liquid crystal display elements with fast response speeds, it is suitable to have a lower content of the compound represented by general formula (M-7).

[0446] Furthermore, the compound represented by general formula (M-7) is preferably the compound represented by formulas (M-7.1) to (M-7.4), and more preferably the compound represented by formula (M-7.2).

[0447] [Chemistry 65]

[0448]

[0449] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0450] Furthermore, the compound represented by general formula (M-7) is preferably the compound represented by formulas (M-7.11) to (M-7.14), and more preferably the compound represented by formulas (M-7.11) and (M-7.12).

[0451] [Chemistry 66]

[0452]

[0453] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0454] Furthermore, the compound represented by general formula (M-7) is preferably the compound represented by formulas (M-7.21) to (M-7.24), and more preferably the compound represented by formulas (M-7.21) and (M-7.22).

[0455] [Chemistry 67]

[0456]

[0457] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0458] Furthermore, the compound represented by general formula (M) is preferably the compound represented by general formula (M-8).

[0459] [Chemistry 68]

[0460]

[0461] (where X) M81 To X M84 Y represents either a fluorine atom or a hydrogen atom independently. M81 Represents a fluorine atom, a chlorine atom, or -OCF3, R M81A represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M81 and A M82 Each independently represents 1,4-cyclohexylene, 1,4-phenylene, or

[0462] [Chemistry 69]

[0463]

[0464] (The hydrogen atom on the 1,4-phenylene group can also be replaced by a fluorine atom.)

[0465] The preferred lower limits of the content of the compound represented by general formula (M-8) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0466] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0467] Furthermore, the compounds represented by general formula (M-8) used in the compositions of the present invention are preferably compounds represented by formulas (M-8.1) to (M-8.4), among which, compounds represented by formulas (M-8.1) and (M-8.2) are preferred.

[0468] [Chemistry 70]

[0469]

[0470] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0471] Furthermore, the compounds represented by general formula (M-8) used in the compositions of the present invention are preferably compounds represented by formulas (M-8.11) to (M-8.14), among which, it is preferred to include compounds represented by formula (M-8.12).

[0472] [Chemistry 71]

[0473]

[0474] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0475] Furthermore, the compounds represented by general formula (M-8) used in the compositions of the present invention are preferably compounds represented by formulas (M-8.21) to (M-8.24), among which, it is preferred to include compounds represented by formula (M-8.22).

[0476] [Chemistry 72]

[0477]

[0478] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0479] Furthermore, the compounds represented by general formula (M-8) used in the compositions of the present invention are preferably compounds represented by formulas (M-8.31) to (M-8.34), among which, it is preferred to include compounds represented by formula (M-8.32).

[0480] [Chemistry 73]

[0481]

[0482] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0483] Furthermore, the compounds represented by general formula (M-8) used in the compositions of the present invention are preferably compounds represented by formulas (M-8.41) to (M-8.44), among which, it is preferred to include compounds represented by formula (M-8.42).

[0484] [Chemistry 74]

[0485]

[0486] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0487] Furthermore, the compounds represented by general formula (M-8) used in the compositions of the present invention are preferably compounds represented by formulas (M-8.51) to (M-8.54), among which, it is preferred to include compounds represented by formula (M-8.52).

[0488] [Chemistry 75]

[0489]

[0490] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0491] Furthermore, compounds represented by general formula (M) may also have the following local structures in their structure.

[0492] [Chemistry 76]

[0493]

[0494] (The black dots in the formula represent carbon atoms in the ring structures connected by the aforementioned local structures.)

[0495] The preferred compounds having the above-described local structure are those represented by general formulas (M-10) to (M-18).

[0496] The compounds represented by the general formula (M-10) are the following compounds.

[0497] [Chemistry 77]

[0498]

[0499] (where X) M101 and X M102 Y represents either a fluorine atom or a hydrogen atom independently. M101 Represents a fluorine atom, a chlorine atom, or -OCF3, R M101W represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M101 and W M102 These can be represented independently as -CH2- or -O-.

[0500] The preferred lower limits of the content of the compound represented by general formula (M-10) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0501] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0502] Furthermore, the compounds represented by general formula (M-10) used in the compositions of the present invention are preferably compounds represented by formulas (M-10.1) to (M-10.12), among which, it is more preferable to contain compounds represented by formulas (M-10.5) to (M-10.12).

[0503] [Chemistry 78]

[0504]

[0505] [Chemistry 79]

[0506]

[0507] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0508] The compounds represented by the general formula (M-11) are the following compounds.

[0509] [Chemistry 80]

[0510]

[0511] (where X) M111 ~X M114Y represents either a fluorine atom or a hydrogen atom independently. M111 Represents a fluorine atom, a chlorine atom, or -OCF3, R M111 This refers to 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.

[0512] The preferred lower limits of the content of the compound represented by general formula (M-11) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0513] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0514] Furthermore, the compounds represented by general formula (M-11) used in the compositions of the present invention are preferably compounds represented by formulas (M-11.1) to (M-11.8), among which, it is preferable to contain compounds represented by formulas (M-11.1) to (M-11.4).

[0515] [Chemistry 81]

[0516]

[0517] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0518] The compounds represented by the general formula (M-12) are the following compounds.

[0519] [Chemistry 82]

[0520]

[0521] (where X) M121 and X M122 Y represents either a fluorine atom or a hydrogen atom independently. M121 Represents a fluorine atom, a chlorine atom, or -OCF3, R M121W represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M121 and W M122 These can be represented independently as -CH2- or -O-.

[0522] The preferred lower limits of the content of the compound represented by general formula (M-12) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0523] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0524] Furthermore, the compounds represented by general formula (M-12) used in the compositions of the present invention are preferably compounds represented by formulas (M-12.1) to (M-12.12), among which, it is more preferably to contain compounds represented by formulas (M-12.5) to (M-12.8).

[0525] [Chemistry 83]

[0526]

[0527] [Chemistry 84]

[0528]

[0529] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0530] The compounds represented by the general formula (M-13) are the following compounds.

[0531] [Chemistry 85]

[0532]

[0533] (where X) M131 ~X M134Y represents either a fluorine atom or a hydrogen atom independently. M131 Represents a fluorine atom, a chlorine atom, or -OCF3, R M131 W represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M131 and W M132 These can be represented independently as -CH2- or -O-.

[0534] The preferred lower limits of the content of the compound represented by general formula (M-13) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0535] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0536] Furthermore, the compounds represented by general formula (M-13) used in the compositions of the present invention are preferably compounds represented by formulas (M-13.1) to (M-13.28), wherein, it is preferred to include compounds represented by formulas (M-13.1) to (M-13.4), (M-13.11) to (M-13.14), and (M-13.25) to (M-13.28).

[0537] [Chemistry 86]

[0538]

[0539] [Chemistry 87]

[0540]

[0541] [Chemistry 88]

[0542]

[0543] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0544] The compounds represented by the general formula (M-14) are the following compounds.

[0545] [Chemistry 89]

[0546]

[0547] (where X) M141 ~X M144 Y represents either a fluorine atom or a hydrogen atom independently. M141 Represents a fluorine atom, a chlorine atom, or -OCF3, R M141 W represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M141 and W M142 These can be represented independently as -CH2- or -O-.

[0548] The preferred lower limits of the content of the compound represented by general formula (M-14) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0549] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0550] Furthermore, the compounds represented by general formula (M-14) used in the compositions of the present invention are preferably compounds represented by formulas (M-14.1) to (M-14.8), among which, compounds represented by formulas (M-14.5) and (M-14.8) are more preferably included.

[0551] [Chemistry 90]

[0552]

[0553] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0554] The compounds represented by the general formula (M-15) are the following compounds.

[0555] [Chemistry 91]

[0556]

[0557] (where X) M151 and X M152 Y represents either a fluorine atom or a hydrogen atom independently. M151 Represents a fluorine atom, a chlorine atom, or -OCF3, R M151 W represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M151 and W M152 These can be represented independently as -CH2- or -O-.

[0558] The preferred lower limits of the content of the compound represented by general formula (M-15) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0559] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0560] Furthermore, the compounds represented by general formula (M-15) used in the compositions of the present invention are preferably compounds represented by formulas (M-15.1) to (M-15.14), wherein, it is preferred to include compounds represented by formulas (M-15.5) to (M-15.8) and formulas (M-15.11) to (M-15.14).

[0561] [Chemistry 92]

[0562]

[0563] [Chemistry 93]

[0564]

[0565] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0566] The compounds represented by the general formula (M-16) are the following compounds.

[0567] [Chemistry 94]

[0568]

[0569] (where X) M161 ~X M164 Y represents either a fluorine atom or a hydrogen atom independently. M161 Represents a fluorine atom, a chlorine atom, or -OCF3, R M161 This refers to 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.

[0570] The preferred lower limits of the content of the compound represented by general formula (M-16) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0571] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0572] Furthermore, the compounds represented by general formula (M-16) used in the compositions of the present invention are preferably compounds represented by formulas (M-16.1) to (M-16.8), among which, it is more preferable to contain compounds represented by formulas (M-16.1) to (M-16.4).

[0573] [Chem. 95]

[0574]

[0575] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0576] The compounds represented by the general formula (M-17) are the following compounds.

[0577] [Chemistry 96]

[0578]

[0579] (where X) M171 ~X M174 Y represents either a fluorine atom or a hydrogen atom independently. M171 Represents a fluorine atom, a chlorine atom, or -OCF3, R M171 W represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. M171 and W M172 These can be represented independently as -CH2- or -O-.

[0580] The preferred lower limits of the content of the compound represented by general formula (M-17) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0581] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0582] Furthermore, the compounds represented by general formula (M-17) used in the compositions of the present invention are preferably compounds represented by formulas (M-17.1) to (M-17.52), wherein, it is preferred to include compounds represented by formulas (M-17.9) to (M-17.12), (M-17.21) to (M-17.28), and (M-17.45) to (M-17.48).

[0583] [Chemistry 97]

[0584]

[0585] [Chem. 98]

[0586]

[0587] [Chemistry 99]

[0588]

[0589] [Chemistry 100]

[0590]

[0591] [Chemistry 101]

[0592]

[0593] [Chemistry 102]

[0594]

[0595] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0596] The compounds represented by the general formula (M-18) are the following compounds.

[0597] [Chemistry 103]

[0598]

[0599] (where X) M181 ~X M186 Y represents either a fluorine atom or a hydrogen atom independently. M181 Represents a fluorine atom, a chlorine atom, or -OCF3, R M181 This refers to 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.

[0600] The preferred lower limits of the content of the compound represented by general formula (M-18) relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0601] In cases where a low viscosity is desired in the composition of the present invention and a fast response speed is required, it is preferable to have a low lower limit and a low upper limit. Furthermore, in cases where a composition is required to minimize screen burn-in, it is preferable to have a low lower limit and a low upper limit. Additionally, when it is desirable to increase the dielectric constant anisotropy in order to maintain a low driving voltage, it is preferable to have a high lower limit and a high upper limit.

[0602] Furthermore, the compounds represented by general formula (M-18) used in the compositions of the present invention are preferably compounds represented by formulas (M-18.1) to (M-18.12), among which, it is more preferably to include compounds represented by formulas (M-18.5) to (M-18.8).

[0603] [Chemistry 104]

[0604]

[0605] [Chemistry 105]

[0606]

[0607] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0608] The compositions of the present invention preferably contain one or more compounds represented by the general formula (K). These compounds are equivalent to compounds with positive dielectric properties (Δε greater than 2).

[0609] [Chemistry 106]

[0610]

[0611] (where R is in the formula) K1 The alkyl group having 1 to 8 carbon atoms may have one or more non-adjacent -CH2- atoms that can be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -COO-, or -OCO-.

[0612] n K1 It represents 0, 1, 2, 3, or 4;

[0613] A K1 and A K2 Each represents the freedom of choice independently.

[0614] (a) 1,4-cyclohexylene (one -CH2- or two or more non-adjacent -CH2- groups in this group may also be replaced by -O- or -S-) and

[0615] (b) 1,4-Phenylidene (one -CH= or two or more non-adjacent -CH= groups in this group may also be substituted by -N=)

[0616] The hydrogen atoms on the groups (a) and (b) in the group can also be independently replaced by cyano, fluorine or chlorine atoms, respectively;

[0617] Z K1 and Z K2 Each can independently represent a single bond, -CH2CH2-, -(CH2)4-, -OCH2-, -CH2O-, -OCF2-, -CF2O-, -COO-, -OCO-, or -C≡C-;

[0618] In n K1 It is 2, 3 or 4 and there are multiple A's. K2 In the case of n, they can be the same or different. K1 It is 2, 3, or 4 and there are multiple Z. K1 In this case, they can be the same or different;

[0619] X K1 and X K3 Each can be used independently to represent a hydrogen atom, a chlorine atom, or a fluorine atom;

[0620] X K2 This represents a hydrogen atom, fluorine atom, chlorine atom, cyano group, trifluoromethyl group, fluoromethoxy group, difluoromethoxy group, trifluoromethoxy group, or 2,2,2-trifluoroethyl group.

[0621] In the general formula (K), R K1 Preferably, it is an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms; more preferably, it is an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkenyloxy group having 2 to 5 carbon atoms; even more preferably, it is an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 3 carbon atoms; and particularly preferably, it is an alkenyl group having 3 carbon atoms (propenyl).

[0622] With reliability as a priority, R K1 Alkyl groups are preferred, and alkenyl groups are preferred when reducing viscosity is a priority.

[0623] Furthermore, when the linked ring structure is phenyl (aromatic), it is preferably a straight-chain alkyl group with 1 to 5 carbon atoms, a straight-chain alkoxy group with 1 to 4 carbon atoms, or an alkenyl group with 4 to 5 carbon atoms, and the linked ring structure is cyclohexane, pyran, or diphenylene oxide. In the case of saturated ring structures such as alkane, the preferred structures are linear alkyl groups with 1 to 5 carbon atoms, linear alkoxy groups with 1 to 4 carbon atoms, and linear alkenyl groups with 2 to 5 carbon atoms. To stabilize the nematic phase, the total number of carbon atoms and, where present, oxygen atoms is preferably 5 or less, and a linear structure is preferred.

[0624] The alkenyl group is preferably a group selected from any of formulas (R1) to (R5). (The black dots in each formula represent carbon atoms in the ring structure to which the alkenyl group is attached.)

[0625] [Chemistry 107]

[0626]

[0627] When it is required to increase Δn, A K1 and A K2 Each is preferably aromatic, and aliphatic to improve response speed. Preferably, it represents trans-1,4-cyclohexene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene, 2,3-difluoro-1,4-phenylene, 1,4-cyclohexenyl, 1,4-bicyclo[2.2.2]octylene, piperidine-1,4-diyl, naphthyl-2,6-diyl, decahydronaphthyl-2,6-diyl, or 1,2,3,4-tetrahydronaphthyl-2,6-diyl, and more preferably the following structures.

[0628] [Chemistry 108]

[0629]

[0630] More preferably, the following structure is represented.

[0631] [Chemistry 109]

[0632]

[0633] Z K1 and Z K2 Each can be independently represented as -CH2O-, -CF2O-, -CH2CH2-, -CF2CF2- or a single bond, more preferably -CF2O-, -CH2CH2- or a single bond, and particularly preferably -CF2O- or a single bond.

[0634] n K1The preferred values ​​are 0, 1, 2, or 3, with 0, 1, or 2 being preferred. When the focus is on improving Δε, 0 or 1 is preferred. When T is emphasized... NI In this case, 1 or 2 is preferred.

[0635] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three compounds are used. Furthermore, in another embodiment of the present invention, four, five, six, or seven or more compounds are used.

[0636] In the compositions of the present invention, the content of the compound represented by the general formula (K) must be appropriately adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, process adaptability, drip marks, burn-in, and dielectric anisotropy.

[0637] The lower limit of the preferred content of the compound represented by formula (K) relative to the total amount of the composition of the present invention is 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, or 80%. The upper limit of the preferred content, for example in one embodiment of the present invention, is 95%, 85%, 75%, 65%, 55%, 45%, 35%, or 25% relative to the total amount of the composition of the present invention.

[0638] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI In cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0639] The compound represented by general formula (K) is preferably a compound selected from the group of compounds represented by general formula (K-1).

[0640] [Chemical 110]

[0641]

[0642] (where R is in the formula) K11 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. K11 ~X K14 Y represents either a hydrogen atom or a fluorine atom independently. K11 (This represents a fluorine atom or OCF3.)

[0643] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three or more compounds may be used.

[0644] The preferred lower limits of the content of the compound represented by formula (K-1) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0645] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI In cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0646] Furthermore, the compound represented by general formula (K-1) is preferably a compound represented by formulas (K-1.1) to (K-1.4), more preferably a compound represented by formula (K-1.1) or (K-1.2), and even more preferably a compound represented by formula (K-1.2). Additionally, it is also preferable to use compounds represented by both formulas (K-1.1) and (K-1.2).

[0647] [Chemistry 111]

[0648]

[0649] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0650] The compound represented by general formula (K) is preferably a compound selected from the group of compounds represented by general formula (K-2).

[0651] [Chemistry 112]

[0652]

[0653] (where R is in the formula) K21 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. K21 ~X K24 Y represents either a hydrogen atom or a fluorine atom independently. K21 (This represents a fluorine atom or OCF3.)

[0654] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three or more compounds may be used.

[0655] The preferred lower limits of the content of the compound represented by formula (K-2) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0656] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI In cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0657] Furthermore, the compound represented by general formula (K-2) is preferably a compound represented by formulas (K-2.1) to (K-2.6), more preferably a compound represented by formula (K-2.5) or (K-2.6), and even more preferably a compound represented by formula (K-2.6). Additionally, it is also preferable to use compounds represented by both formulas (K-2.5) and (K-2.6).

[0658] [Chemistry 113]

[0659]

[0660] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0661] The compounds represented by general formula (K) are preferably selected from the group of compounds represented by general formula (K-3).

[0662] [Chemistry 114]

[0663]

[0664] (where R is in the formula) K31 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. K31 ~X K36 Y represents either a hydrogen atom or a fluorine atom independently. K31 (This represents a fluorine atom or OCF3.)

[0665] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three or more compounds may be used.

[0666] The preferred lower limits of the content of the compound represented by formula (K-3) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0667] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI In cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0668] Furthermore, the compound represented by general formula (K-3) is preferably a compound represented by formulas (K-3.1) to (K-3.4), and more preferably a compound represented by formula (K-3.1) or (K-3.2). In addition, it is also preferable to use compounds represented by both formulas (K-3.1) and (K-3.2).

[0669] [Chemistry 115]

[0670]

[0671] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0672] The compounds represented by general formula (K) are preferably selected from the group of compounds represented by general formula (K-4).

[0673] [Chemistry 116]

[0674]

[0675] (where R is in the formula) K41 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. K41 ~X K46 Y represents either a hydrogen atom or a fluorine atom independently. K41 Represents a fluorine atom or OCF3, Z K41 This indicates -OCH2-, -CH2O-, -OCF2-, or -CF2O-.

[0676] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three or more compounds may be used.

[0677] The preferred lower limits of the content of the compound represented by formula (K-4) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0678] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI In cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0679] Furthermore, the compounds represented by general formula (K-4) are preferably those represented by formulas (K-4.1) to (K-4.18), and more preferably those represented by formulas (K-4.1), (K-4.2), (K-4.11), and (K-4.12). Additionally, it is also preferable to use compounds represented by formulas (K-4.1), (K-4.2), (K-4.11), and (K-4.12) simultaneously.

[0680] [Chemistry 117]

[0681]

[0682] [Chemistry 118]

[0683]

[0684] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0685] The compounds represented by general formula (K) are preferably selected from the group of compounds represented by general formula (K-5).

[0686] [Chemistry 119]

[0687]

[0688] (where R is in the formula) K51 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. K51 ~X K56 Y represents either a hydrogen atom or a fluorine atom independently. K51 Represents a fluorine atom or OCF3, Z K51 This indicates -OCH2-, -CH2O-, -OCF2-, or -CF2O-.

[0689] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three or more compounds may be used.

[0690] The preferred lower limits of the content of the compound represented by formula (K-5) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0691] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI In cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0692] Furthermore, the compound represented by general formula (K-5) is preferably a compound represented by formula (K-5.1) to formula (K-5.18), more preferably a compound represented by formula (K-5.11) to formula (K-5.14), and more preferably a compound represented by formula (K-5.12).

[0693] [Chemistry 120]

[0694]

[0695] [Chemistry 121]

[0696]

[0697] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0698] The compounds represented by general formula (K) are preferably selected from the group of compounds represented by general formula (K-6).

[0699] [Chemistry 122]

[0700]

[0701] (where R is in the formula) K61 X represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. K61 ~X K68Y represents either a hydrogen atom or a fluorine atom independently. K61 Represents a fluorine atom or OCF3, Z K61 This indicates -OCH2-, -CH2O-, -OCF2-, or -CF2O-.

[0702] There are no particular limitations on the types of compounds that can be combined; they can be combined according to the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, or three or more compounds may be used.

[0703] The preferred lower limits of the content of the compound represented by formula (K-6) relative to the total amount of the composition of the present invention are 1%, 2%, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 22%, 25%, and 30%. The preferred upper limits of the content are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0704] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, it is preferable to keep the lower limit value and the upper limit value low. Furthermore, when the T of the composition of the present invention... NI In cases where a composition with high temperature stability is required, it is preferable to have a low lower limit and a low upper limit. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable to have a high lower limit and a high upper limit.

[0705] Furthermore, the compounds represented by general formula (K-6) are specifically preferably those represented by formulas (K-6.1) to (K-6.18), more preferably those represented by formulas (K-6.15) to (K-6.18), and even more preferably those represented by formulas (K-6.16) and (K-6.17). Additionally, it is also preferable to use compounds represented by both formulas (K-6.16) and (K-6.17).

[0706] [Chemistry 123]

[0707]

[0708] [Chemistry 124]

[0709]

[0710] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 4%, 5%, 8%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits are 30%, 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, and 5%.

[0711] The liquid crystal composition of the present invention preferably contains one or more compounds represented by the general formula (L). The compounds represented by the general formula (L) are equivalent to compounds with substantially neutral dielectric properties (Δε value of -2 to 2).

[0712] [Chemistry 125]

[0713]

[0714] (where R is in the formula) L1 and R L2 Each of the alkyl groups having 1 to 8 carbon atoms can be independently represented, and one or more non-adjacent -CH2- atoms in the alkyl group can be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-.

[0715] n L1 It represents 0, 1, 2, or 3;

[0716] A L1 A L2 and A L3 Each represents the freedom of choice independently.

[0717] (a) 1,4-cyclohexylene (one -CH2- or two or more non-adjacent -CH2- groups in this group may also be replaced by -O-),

[0718] (b) 1,4-phenylene (one -CH= or two or more non-adjacent -CH= groups in this group may also be substituted by -N=), and

[0719] (c) Naphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl or decahydronaphthalene-2,6-diyl (one -CH= or two or more non-adjacent -CH= in naphthalene-2,6-diyl or 1,2,3,4-tetrahydronaphthalene-2,6-diyl may also be replaced by -N=)

[0720] The groups in the group, including groups (a), (b) and (c), can also be independently replaced by cyano, fluorine or chlorine atoms, respectively;

[0721] Z L1 and Z L2Each of these can be used to independently represent a single bond, -CH2CH2-, -(CH2)4-, -OCH2-, -CH2O-, -COO-, -OCO-, -OCF2-, -CF2O-, -CH=NN=CH-, -CH=CH-, -CF=CF-, or -C≡C-.

[0722] In n L1 It is 2 or 3 and there are multiple A's. L2 In the case of n, they can be the same or different. L1 It is 2 or 3 and there are multiple Z L2 In this case, they may be the same or different; excluding compounds represented by general formulas (N-1), (N-2), (N-3), (J), and (i).

[0723] The compounds represented by the general formula (L) can be used alone or in combination. There are no particular limitations on the types of compounds that can be combined; they can be appropriately combined based on required properties such as solubility at low temperatures, transition temperatures, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one type is used. Or, in another embodiment of the present invention, two, three, four, five, six, seven, eight, nine, or ten or more types are used.

[0724] In the compositions of the present invention, the content of the compound represented by the general formula (L) must be appropriately adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, process adaptability, drip marks, burn-in, and dielectric anisotropy.

[0725] The preferred lower limits of the content of the compound represented by formula (L) relative to the total amount of the composition of the present invention are 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, and 80%. The preferred upper limits of the content are 95%, 85%, 75%, 65%, 55%, 45%, 35%, and 25%.

[0726] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, a high lower limit and a high upper limit are preferred. Furthermore, when the T of the composition of the present invention is... NI In cases where a high level of temperature stability is required for the composition, it is preferable that both the lower and upper limits of the aforementioned values ​​are high. Conversely, when it is desirable to increase the anisotropy of the dielectric constant in order to keep the driving voltage low, it is preferable that both the lower and upper limits of the aforementioned values ​​are low.

[0727] When reliability is a priority, R is preferred. L1 and R L2All are alkyl groups, with alkoxy groups preferred when reducing the volatility of the compound is important, and alkenyl groups preferred when reducing viscosity is important.

[0728] 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.

[0729] Regarding R L1 and R L2 When the ring structure to which it is attached is phenyl (aromatic), it is preferably a straight-chain alkyl group with 1 to 5 carbon atoms, a straight-chain alkoxy group with 1 to 4 carbon atoms, or an alkenyl group with 4 to 5 carbon atoms, and the ring structure to which it is attached is cyclohexane, pyran, or diphenyl alkyl. In the case of saturated ring structures such as alkane, the preferred structures are linear alkyl groups with 1 to 5 carbon atoms, linear alkoxy groups with 1 to 4 carbon atoms, and linear alkenyl groups with 2 to 5 carbon atoms. To stabilize the nematic phase, the total number of carbon atoms and, where present, oxygen atoms is preferably 5 or less, and a linear structure is preferred.

[0730] The alkenyl group is preferably a group selected from any of formulas (R1) to (R5). (The black dots in each formula represent carbon atoms in the ring structure.)

[0731] [Chemistry 126]

[0732]

[0733] When response speed is a priority, n L1 The value is preferably 0; to improve the upper limit temperature of the nematic phase, it is preferably 2 or 3; and to achieve a balance between these, it is preferably 1. Furthermore, to satisfy the properties required as a composition, it is preferable to combine compounds with different values.

[0734] Regarding A L1 A L2 and A L3 When a greater increase in Δn is required, aromatic compounds are preferred; to improve response speed, aliphatic compounds are preferred. The compounds are preferably, independently, trans-1,4-cyclohexene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene, 1,4-cyclohexenyl, 1,4-bicyclo[2.2.2]octylene, piperidine-1,4-diyl, naphthyl-2,6-diyl, decahydronaphthyl-2,6-diyl, or 1,2,3,4-tetrahydronaphthyl-2,6-diyl, and more preferably, the following structures.

[0735] [Chemistry 127]

[0736]

[0737] More preferably, it represents trans-1,4-cyclohexylene or 1,4-phenylene.

[0738] With response speed being a priority, Z L1 and Z L2 Single bonds are preferred.

[0739] In compounds represented by the general formula (L), the number of halogen atoms in the molecule is preferably 0 or 1.

[0740] The compound represented by general formula (L) is preferably a compound selected from the group of compounds represented by general formulas (L-1) to (L-8).

[0741] The compounds represented by the general formula (L-1) are the following compounds.

[0742] [Chemistry 128]

[0743]

[0744] (where R is in the formula) L11 and R L12 Represent R independently in the general formula (L). L1 and R L2 Same meaning.

[0745] R L11 and R L12 Preferably, it is a straight-chain alkyl group with 1 to 5 carbon atoms, a straight-chain alkoxy group with 1 to 4 carbon atoms, or a straight-chain alkenyl group with 2 to 5 carbon atoms.

[0746] The compound represented by the general formula (L-1) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0747] The preferred lower limits of the content relative to the total amount of the composition of the present invention are 1%, 2%, 3%, 5%, 7%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, and 55%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 95%, 90%, 85%, 80%, 75%, 70%, 65%, 60%, 55%, 50%, 45%, 40%, 35%, 30%, and 25%.

[0748] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, a high lower limit and a high upper limit are preferred. Furthermore, when the T of the composition of the present invention is... NI In the case of compositions requiring high temperature stability, the lower limit value is preferably moderate, and the upper limit value is moderate. Furthermore, when it is desirable to increase the dielectric constant anisotropy in order to keep the driving voltage low, the lower limit value is preferably low, and the upper limit value is preferably low.

[0749] R L11 and R L12 The compounds are preferably alkyl groups having 1 to 3 carbon atoms and alkenyl groups having 2 or 3 carbon atoms, respectively. The preferred lower limits of the content of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, 7%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, and 55%. The preferred upper limits of the content relative to the total amount of the compositions of the present invention are 95%, 90%, 85%, 80%, 75%, 70%, 65%, 60%, 55%, 50%, 45%, 40%, 35%, 30%, and 25%.

[0750] In cases where a low viscosity is required for the composition of the present invention and a fast response speed is desired, a high lower limit and a high upper limit are preferred. Furthermore, when the T of the composition of the present invention is... NI In the case of compositions requiring high temperature stability, the lower limit value is preferably moderate, and the upper limit value is moderate. Furthermore, when it is desirable to increase the dielectric constant anisotropy in order to keep the driving voltage low, the lower limit value is preferably low, and the upper limit value is preferably low.

[0751] The compound represented by general formula (L-1) is preferably a compound selected from the group of compounds represented by general formula (L-1-1).

[0752] [Chemistry 129]

[0753]

[0754] (where R is in the formula) L12 This indicates the same meaning as in the general formula (L-1).

[0755] The compound represented by general formula (L-1-1) is preferably a compound selected from the group of compounds represented by formulas (L-1-1.1) to (L-1-1.3), preferably a compound represented by formula (L-1-1.2) or (L-1-1.3), and particularly preferably a compound represented by formula (L-1-1.3).

[0756] [Chemistry 130]

[0757]

[0758] The preferred lower limits of the content of the compound represented by formula (L-1-1.3) relative to the total amount of the composition of the present invention are 1%, 2%, 3%, 5%, 7%, and 10%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 20%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, and 3%.

[0759] The compound represented by general formula (L-1) is preferably a compound selected from the group of compounds represented by general formula (L-1-2).

[0760] [Chemistry 131]

[0761]

[0762] (where R is in the formula) L12 This indicates the same meaning as in the general formula (L-1).

[0763] The preferred lower limits of the content of the compound represented by formula (L-1-2) relative to the total amount of the composition of the present invention are 1%, 5%, 10%, 15%, 17%, 20%, 23%, 25%, 27%, 30%, and 35%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 60%, 55%, 50%, 45%, 42%, 40%, 38%, 35%, 33%, and 30%.

[0764] Furthermore, the compound represented by general formula (L-1-2) is preferably a compound selected from the group of compounds represented by formulas (L-1-2.1) to (L-1-2.4), and more preferably a compound represented by formulas (L-1-2.2) to (L-1-2.4). In particular, the compound represented by formula (L-1-2.2) is preferred because it particularly improves the response rate of the compositions of the present invention. Additionally, a higher Tf is required compared to the response rate. NI When using compounds, it is preferable to use compounds represented by formula (L-1-2.3) or formula (L-1-2.4). To ensure good solubility at low temperatures, it is not preferable to set the content of compounds represented by formulas (L-1-2.3) and (L-1-2.4) to 30% or more.

[0765] [Chemistry 132]

[0766]

[0767] The preferred lower limits of the content of the compound represented by formula (L-1-2.2) relative to the total amount of the composition of the present invention are 10%, 15%, 18%, 20%, 23%, 25%, 27%, 30%, 33%, 35%, 38%, and 40%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 60%, 55%, 50%, 45%, 43%, 40%, 38%, 35%, 32%, 30%, 27%, 25%, and 22%.

[0768] The preferred lower limits of the total content of the compounds represented by formula (L-1-1.3) and the total content of the compounds represented by formula (L-1-2.2) relative to the total amount of the compositions of the present invention are 10%, 15%, 20%, 25%, 27%, 30%, 35%, and 40%. The preferred upper limits of the content relative to the total amount of the compositions of the present invention are 60%, 55%, 50%, 45%, 43%, 40%, 38%, 35%, 32%, 30%, 27%, 25%, and 22%.

[0769] The compound represented by general formula (L-1) is preferably a compound selected from the group of compounds represented by general formula (L-1-3).

[0770] [Chemistry 133]

[0771]

[0772] (where R is in the formula) L13 and R L14 Each can be independently represented as an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms.

[0773] R L13 and R L14 Preferably, it is a straight-chain alkyl group with 1 to 5 carbon atoms, a straight-chain alkoxy group with 1 to 4 carbon atoms, or a straight-chain alkenyl group with 2 to 5 carbon atoms.

[0774] The preferred lower limits of the content of the compound represented by formula (L-1-3) relative to the total amount of the composition of the present invention are 1%, 5%, 10%, 13%, 15%, 17%, 20%, 23%, 25%, and 30%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 60%, 55%, 50%, 45%, 40%, 37%, 35%, 33%, 30%, 27%, 25%, 23%, 20%, 17%, 15%, 13%, and 10%.

[0775] Furthermore, the compound represented by general formula (L-1-3) is preferably a compound selected from the group of compounds represented by formulas (L-1-3.1) to (L-1-3.12), and more preferably a compound represented by formulas (L-1-3.1), (L-1-3.3), or (L-1-3.4). In particular, the compound represented by formula (L-1-3.1) is preferred because it particularly improves the response rate of the compositions of the present invention. Additionally, a higher Tf is required compared to the response rate. NI When using compounds, it is preferable to use compounds represented by formulas (L-1-3.3), (L-1-3.4), (L-1-3.11), and (L-1-3.12). To ensure good solubility at low temperatures, it is not preferable to set the total content of compounds represented by formulas (L-1-3.3), (L-1-3.4), (L-1-3.11), and (L-1-3.12) to 20% or more.

[0776] [Chemistry 134]

[0777]

[0778] The preferred lower limits of the content of the compound represented by formula (L-1-3.1) relative to the total amount of the composition of the present invention are 1%, 2%, 3%, 5%, 7%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 20%, 17%, 15%, 13%, 10%, 8%, 7%, and 6%.

[0779] The compound represented by general formula (L-1) is preferably a compound selected from the group of compounds represented by general formula (L-1-4) and / or (L-1-5).

[0780] [Chemistry 135]

[0781]

[0782] (where R is in the formula) L15 and R L16 Each can be independently represented as an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms.

[0783] R L15 and R L16 Preferably, it is a straight-chain alkyl group with 1 to 5 carbon atoms, a straight-chain alkoxy group with 1 to 4 carbon atoms, or a straight-chain alkenyl group with 2 to 5 carbon atoms.

[0784] The preferred lower limits of the content of the compound represented by formula (L-1-4) relative to the total amount of the composition of the present invention are 1%, 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 25%, 23%, 20%, 17%, 15%, 13%, and 10%.

[0785] The preferred lower limits of the content of the compound represented by formula (L-1-5) relative to the total amount of the composition of the present invention are 1%, 5%, 10%, 13%, 15%, 17%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 25%, 23%, 20%, 17%, 15%, 13%, and 10%.

[0786] Furthermore, the compounds represented by general formulas (L-1-4) and (L-1-5) are preferably selected from the group of compounds represented by formulas (L-1-4.1) to (L-1-5.3), and more preferably are the compounds represented by formulas (L-1-4.2) or (L-1-5.2).

[0787] [Chemistry 136]

[0788]

[0789] The preferred lower limits of the content of the compound represented by formula (L-1-4.2) relative to the total amount of the composition of the present invention are 1%, 2%, 3%, 5%, 7%, 10%, 13%, 15%, 18%, and 20%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 20%, 17%, 15%, 13%, 10%, 8%, 7%, and 6%.

[0790] Preferably, the combination consists of two or more compounds selected from the compounds represented by formulas (L-1-1.3), (L-1-2.2), (L-1-3.1), (L-1-3.3), (L-1-3.4), (L-1-3.11), and (L-1-3.12), and more preferably, the combination consists of compounds selected from the compounds represented by formulas (L-1-1.3), (L-1-2.2), (L-1-3.1), (L-1-3.3), (L-1-3.4), and (L-1-4.2). The preferred lower limit of the total content of two or more compounds in the composition, relative to the total amount of the composition of the present invention, is 1%, 2%, 3%, 5%, 7%, 10%, 13%, 15%, 18%, 20%, 23%, 25%, 27%, 30%, 33%, or 35%, and the upper limit is 80%, 70%, 60%, 50%, 45%, 40%, 37%, 35%, 33%, 30%, 28%, 25%, 23%, or 20%. Where the reliability of the composition is important, it is preferable to combine two or more compounds selected from those represented by formulas (L-1-3.1), (L-1-3.3), and (L-1-3.4). Where the response rate of the composition is important, it is preferable to combine two or more compounds selected from those represented by formulas (L-1-1.3) and (L-1-2.2).

[0791] The compounds represented by general formula (L-1) are preferably selected from the group of compounds represented by general formula (L-1-6).

[0792] [Chemistry 137]

[0793]

[0794] (where R is in the formula) L17 and R L18 Each can be used independently to represent either a methyl group or a hydrogen atom.

[0795] The preferred lower limits of the content of the compound represented by formula (L-1-6) relative to the total amount of the composition of the present invention are 1%, 5%, 10%, 15%, 17%, 20%, 23%, 25%, 27%, 30%, and 35%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 60%, 55%, 50%, 45%, 42%, 40%, 38%, 35%, 33%, and 30%.

[0796] Furthermore, the compound represented by general formula (L-1-6) is preferably a compound selected from the group of compounds represented by formulas (L-1-6.1) to (L-1-6.3).

[0797] [Chemistry 138]

[0798]

[0799] The compounds represented by the general formula (L-2) are the following compounds.

[0800] [Chemistry 139]

[0801]

[0802] (where R is in the formula) L21 and R L22 Represent R independently in the general formula (L). L1 and R L2 Same meaning.

[0803] R L21 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, R L22 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms.

[0804] The compound represented by the general formula (L-1) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0805] When solubility at low temperatures is important, a higher concentration yields better results; conversely, when response speed is important, a lower concentration yields better results. Furthermore, when improving dripping and burn-in characteristics, a medium concentration range is preferred.

[0806] The preferred lower limits of the content of the compound represented by formula (L-2) relative to the total amount of the composition of the present invention are 1%, 2%, 3%, 5%, 7%, and 10%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 20%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, and 3%.

[0807] Furthermore, the compound represented by general formula (L-2) is preferably a compound selected from the group of compounds represented by formulas (L-2.1) to (L-2.6), and more preferably a compound represented by formulas (L-2.1), (L-2.3), (L-2.4) and (L-2.6).

[0808] [Chemistry 140]

[0809]

[0810] The compounds represented by the general formula (L-3) are the following compounds.

[0811] [Chemistry 141]

[0812]

[0813] (where R is in the formula) L31 and R L32 Represent R independently in the general formula (L). L1 and R L2 Same meaning.

[0814] R L31 and R L32 Each of the following is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

[0815] The compound represented by general formula (L-3) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0816] The preferred lower limits of the content of the compound represented by formula (L-3) relative to the total amount of the composition of the present invention are 1%, 2%, 3%, 5%, 7%, and 10%. The preferred upper limits of the content relative to the total amount of the composition of the present invention are 20%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, and 3%.

[0817] When a high birefringence is desired, a higher content yields better results; conversely, when a high T content is emphasized... NI In such cases, setting the content to a lower level yields better results. Furthermore, when improving drip marks and burn-in characteristics, it is preferable to set the content range to a medium level.

[0818] Furthermore, the compound represented by general formula (L-3) is preferably a compound selected from the group of compounds represented by formulas (L-3.1) to (L-3.4), and more preferably a compound represented by formulas (L-3.2) to (L-3.7).

[0819] [Chemistry 142]

[0820]

[0821] The compounds represented by the general formula (L-4) are the following compounds.

[0822] [Chemistry 143]

[0823]

[0824] (where R is in the formula) L41 and R L42 Represent R independently in the general formula (L). L1 and R L2 Same meaning.

[0825] R L41 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, R L42 Preferably, it is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

[0826] The compound represented by general formula (L-4) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0827] In the compositions of the present invention, the content of the compound represented by general formula (L-4) must be appropriately adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, process adaptability, drip marks, burn-in, and dielectric anisotropy.

[0828] The preferred lower limits of the content of the compound represented by formula (L-4) relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35%, and 40%. The preferred upper limits of the content of the compound represented by formula (L-4) relative to the total amount of the compositions of the present invention are 50%, 40%, 35%, 30%, 20%, 15%, 10%, and 5%.

[0829] The compounds represented by general formula (L-4) are preferably, for example, those represented by formulas (L-4.1) to (L-4.3).

[0830] [Chemistry 144]

[0831]

[0832] Depending on the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence, the composition may contain a compound represented by formula (L-4.1), a compound represented by formula (L-4.2), or both compounds represented by formulas (L-4.1 and (L-4.2), or all compounds represented by formulas (L-4.1) to (L-4.3). The preferred lower limit for the content of the compound represented by formula (L-4.1) or formula (L-4.2) relative to the total amount of the composition of the present invention is 3%, 5%, 7%, 9%, 11%, 12%, 13%, 18%, or 21%, and the preferred upper limit is 45%, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, or 8%.

[0833] In the case of containing both the compound represented by formula (L-4.1) and the compound represented by formula (L-4.2), the preferred lower limits of the contents of the two compounds relative to the total amount of the composition of the present invention are 15%, 19%, 24%, and 30%, and the preferred upper limits are 45%, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0834] The compounds represented by general formula (L-4) are preferably those represented by formulas (L-4.4) to (L-4.6), with the compounds represented by formula (L-4.4) being the most preferred.

[0835] [Chemistry 145]

[0836]

[0837] Depending on the required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence, it may contain the compound represented by formula (L-4.4), the compound represented by formula (L-4.5), or both the compound represented by formula (L-4.4) and the compound represented by formula (L-4.5).

[0838] The preferred lower limits of the content of the compound represented by formula (L-4.4) or formula (L-4.5) relative to the total amount of the composition of the present invention are 3%, 5%, 7%, 9%, 11%, 12%, 13%, 18%, and 21%. The preferred upper limits are 45%, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, and 8%.

[0839] In the case of containing both the compound represented by formula (L-4.4) and the compound represented by formula (L-4.5), the preferred lower limits of the contents of the two compounds relative to the total amount of the composition of the present invention are 15%, 19%, 24%, and 30%, and the preferred upper limits are 45%, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15%, and 13%.

[0840] The compound represented by general formula (L-4) is preferably the compound represented by formulas (L-4.7) to (L-4.10), and particularly preferably the compound represented by formula (L-4.9).

[0841] [Chemistry 146]

[0842]

[0843] The compounds represented by general formula (L-5) are the following compounds.

[0844] [Chemistry 147]

[0845]

[0846] (where R is in the formula) L51 and R L52 Represent R independently in the general formula (L). L1 and R L2 Same meaning.

[0847] R L51 Preferably, it is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, R L52 Preferably, it is an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms.

[0848] The compound represented by general formula (L-5) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0849] In the compositions of the present invention, the content of the compound represented by general formula (L-5) must be appropriately adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, process adaptability, drip marks, burn-in, and dielectric anisotropy.

[0850] The preferred lower limits of the content of the compound represented by formula (L-5) relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35%, and 40%. The preferred upper limits of the content of the compound represented by formula (L-5) relative to the total amount of the compositions of the present invention are 50%, 40%, 35%, 30%, 20%, 15%, 10%, and 5%.

[0851] The compound represented by general formula (L-5) is preferably the compound represented by formula (L-5.1) or formula (L-5.2), and is particularly preferred to be the compound represented by formula (L-5.1).

[0852] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, and 7%. The preferred upper limits of the contents of these compounds are 20%, 15%, 13%, 10%, and 9%.

[0853] [Chemistry 148]

[0854]

[0855] The compound represented by general formula (L-5) is preferably the compound represented by formula (L-5.3) or formula (L-5.4).

[0856] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, and 7%. The preferred upper limits of the contents of these compounds are 20%, 15%, 13%, 10%, and 9%.

[0857] [Chemistry 149]

[0858]

[0859] The compound represented by general formula (L-5) is preferably a compound selected from the group of compounds represented by formulas (L-5.5) to (L-5.7), and is particularly preferred to be a compound represented by formula (L-5.7).

[0860] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, and 7%. The preferred upper limits of the contents of these compounds are 20%, 15%, 13%, 10%, and 9%.

[0861] [Chemistry 150]

[0862]

[0863] The compounds represented by the general formula (L-6) are the following compounds.

[0864] [Chemistry 151]

[0865]

[0866] (where R is in the formula) L61 and R L62 Represent R independently in the general formula (L). L1 and R L2 Same meaning, X L61 and X L62 Each can be used independently to represent a hydrogen atom or a fluorine atom.

[0867] R L61 and R L62 Each is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, preferably X. L61 and X L62 One of them is a fluorine atom and the other is a hydrogen atom.

[0868] The compound represented by general formula (L-6) can be used alone or in combination of two or more compounds. There are no particular limitations on the types of compounds that can be combined; appropriate combinations can be used based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, four, or five or more compounds may be used.

[0869] The preferred lower limit of the content of the compound represented by formula (L-6) relative to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, 10%, 14%, 16%, 20%, 23%, 26%, 30%, 35%, and 40%. The preferred upper limit of the content of the compound represented by formula (L-6) relative to the total amount of the composition of the present invention is 50%, 40%, 35%, 30%, 20%, 15%, 10%, and 5%. A higher content is preferred when the focus is on maximizing Δn, while a lower content is preferred when the focus is on precipitation at low temperatures.

[0870] The compounds represented by general formula (L-6) are preferably those represented by formulas (L-6.1) to (L-6.9).

[0871] [Chemistry 152]

[0872]

[0873] There is no particular limitation on the types of compounds that can be combined, but it is preferable to contain 1 to 3 of these compounds, more preferably 1 to 4. Furthermore, the selected compounds have a wide molecular weight distribution, which is also effective for solubility. Therefore, it is preferable to select, for example, one compound represented by formula (L-6.1) or (L-6.2), one compound represented by formula (L-6.4) or (L-6.5), one compound represented by formula (L-6.6) or (L-6.7), and one compound represented by formula (L-6.8) or (L-6.9), and combine these appropriately. Among these, it is preferable to contain compounds represented by formulas (L-6.1), (L-6.3), (L-6.4), (L-6.6), and (L-6.9).

[0874] Furthermore, the compounds represented by general formula (L-6) are preferably, for example, those represented by formulas (L-6.10) to (L-6.17), among which, the compounds represented by formula (L-6.11) are preferred.

[0875] [Chemistry 153]

[0876]

[0877] The preferred lower limits of the contents of these compounds relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, and 7%. The preferred upper limits of the contents of these compounds are 20%, 15%, 13%, 10%, and 9%.

[0878] The compounds represented by general formula (L-7) are the following compounds.

[0879] [Chemistry 154]

[0880]

[0881] (where R is in the formula) L71 and R L72 Represent R independently in the general formula (L). L1 and R L2 Same meaning, A L71 and A L72 Represent A in the general formula (L) independently. L2 and A L3 Same meaning, where A L71 and A L72 The hydrogen atoms on Z can also be independently replaced by fluorine atoms. L71 This represents Z in the general formula (L). L2 Same meaning, X L71 and X L72Each can be used independently to represent a fluorine atom or a hydrogen atom.

[0882] In the formula, R L71 and R L72 Each is 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, A. L71 and A L72 Preferably, 1,4-cyclohexene or 1,4-phenylene, A L71 and A L72 The hydrogen atoms on Z can also be independently replaced by fluorine atoms. L71 Preferably a single bond or COO-, preferably a single bond, X L71 and X L72 Hydrogen atoms are preferred.

[0883] There are no particular limitations on the types of compounds that can be combined; combinations are made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, or four compounds may be used.

[0884] In the compositions of the present invention, the content of the compound represented by general formula (L-7) must be appropriately adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, process adaptability, drip marks, burn-in, and dielectric anisotropy.

[0885] The preferred lower limits of the content of the compound represented by formula (L-7) relative to the total amount of the composition of the present invention are 1%, 2%, 3%, 5%, 7%, 10%, 14%, 16%, and 20%. The preferred upper limits of the content of the compound represented by formula (L-7) relative to the total amount of the composition of the present invention are 30%, 25%, 23%, 20%, 18%, 15%, 10%, and 5%.

[0886] The composition of the present invention is expected to be high T. NI In the case of the embodiment, it is preferable to have a higher content of the compound represented by formula (L-7), while in the case of the embodiment where low viscosity is desired, it is preferable to have a lower content.

[0887] Furthermore, the compound represented by general formula (L-7) is preferably the compound represented by formulas (L-7.1) to (L-7.4), and more preferably the compound represented by formula (L-7.2).

[0888] [Chemistry 155]

[0889]

[0890] Furthermore, the compound represented by general formula (L-7) is preferably the compound represented by formulas (L-7.11) to (L-7.13), and more preferably the compound represented by formula (L-7.11).

[0891] [Chemistry 156]

[0892]

[0893] Furthermore, the compound represented by general formula (L-7) is the compound represented by formulas (L-7.21) to (L-7.23). Preferably, it is the compound represented by formula (L-7.21).

[0894] [Chemistry 157]

[0895]

[0896] Furthermore, the compound represented by general formula (L-7) is preferably the compound represented by formula (L-7.31) to formula (L-7.34), and more preferably the compound represented by formula (L-7.31) or / and formula (L-7.32).

[0897] [Chemistry 158]

[0898]

[0899] Furthermore, the compound represented by general formula (L-7) is preferably the compound represented by formula (L-7.41) to formula (L-7.44), and more preferably the compound represented by formula (L-7.41) or / and formula (L-7.42).

[0900] [Chemistry 159]

[0901]

[0902] Furthermore, the compound represented by general formula (L-7) is preferably the compound represented by formula (L-7.51) to formula (L-7.53).

[0903] [Chemistry 160]

[0904]

[0905] The compounds represented by the general formula (L-8) are the following compounds.

[0906] [Chemistry 161]

[0907]

[0908] (where R is in the formula) L81 and R L82 Represent R independently in the general formula (L).L1 and R L2 Same meaning, A L81 This indicates that A in the general formula (L) L1 Same meaning or single key, A L81 The hydrogen atoms on X can also be independently replaced by fluorine atoms. L81 ~X L86 Each can be used independently to represent a fluorine atom or a hydrogen atom.

[0909] In the formula, R L81 and R L82 Each is 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, A. L81 Preferably 1,4-cyclohexene or 1,4-phenylene, A L71 and A L72 The hydrogen atoms on the ring can also be replaced by fluorine atoms independently. In the same ring structure of the general formula (L-8), there are preferably 0 or 1 fluorine atoms. In the molecule, there are preferably 0 or 1 fluorine atoms.

[0910] There are no particular limitations on the types of compounds that can be combined; combinations are made based on required properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. Regarding the types of compounds used, for example, in one embodiment of the present invention, one, two, three, or four compounds may be used.

[0911] In the compositions of the present invention, the content of the compound represented by general formula (L-8) must be appropriately adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, process adaptability, drip marks, burn-in, and dielectric anisotropy.

[0912] The preferred lower limits of the content of the compound represented by formula (L-8) relative to the total amount of the compositions of the present invention are 1%, 2%, 3%, 5%, 7%, 10%, 14%, 16%, and 20%. The preferred upper limits of the content of the compound represented by formula (L-8) relative to the total amount of the compositions of the present invention are 30%, 25%, 23%, 20%, 18%, 15%, 10%, and 5%.

[0913] The composition of the present invention is expected to be high T. NI In the case of the embodiment, it is preferable to have a higher content of the compound represented by formula (L-8), while in the case of the embodiment where low viscosity is desired, it is preferable to have a lower content.

[0914] Furthermore, the compound represented by general formula (L-8) is preferably a compound represented by formula (L-8.1) to formula (L-8.4), and more preferably a compound represented by formula (L-8.3), formula (L-8.5), formula (L-8.6), formula (L-8.13), formula (L-8.16) to formula (L-8.18), formula (L-8.23) to formula (L-8.28).

[0915] [Chemistry 162]

[0916]

[0917] [Chemistry 163]

[0918]

[0919] [Chemistry 164]

[0920]

[0921] The preferred lower limit for the total content of the compounds represented by general formulas (i), (L), (N-1), (N-2), (N-3), and (J) relative to the total amount of the compositions of the present invention is 80%, 85%, 88%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, and 100%. The preferred upper limit for the content is 100%, 99%, 98%, and 95%. From the viewpoint of obtaining a composition with a large absolute value of Δε, it is preferable that any one of the compounds represented by general formulas (N-1), (N-2), (N-3), or (J) is 5% or less, preferably 3% or less, and preferably 0%.

[0922] The preferred lower limit for the total content of the compounds represented by general formulas (i), (L-1) to (L-8), and (M-1) to (M-18) relative to the total amount of the compositions of the present invention is 80%, 85%, 88%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, and 100%. The preferred upper limit for the content is 100%, 99%, 98%, and 95%.

[0923] The preferred lower limit for the total content of the compounds represented by general formulas (i), (L-1) to (L-8), and (N-1a) to (N-1g) relative to the total amount of the compositions of the present invention is 80%, 85%, 88%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, and 100%. The preferred upper limit for the content is 100%, 99%, 98%, and 95%.

[0924] The preferred lower limit for the total content of the compounds represented by general formulas (i), (L-1) to (L-8), and (N-1-1) to (N-1-21) relative to the total amount of the compositions of the present invention is 80%, 85%, 88%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, and 100%. The preferred upper limit for the content is 100%, 99%, 98%, and 95%.

[0925] The composition of the present invention preferably does not contain compounds that have oxygen atoms connected to each other in a structure such as a peroxy acid (-CO-OO-) structure within the molecule.

[0926] When the reliability and long-term stability of the composition are of paramount importance, the content of the carbonyl compound is preferably set to 5% or less, more preferably 3% or less, even more preferably 1% or less, and most preferably substantially non-existent, relative to the total mass of the composition.

[0927] While emphasizing the stability brought about by UV irradiation, the content of the chlorine-substituted compound is preferably set to 15% or less, more preferably 10% or less, more preferably 8% or less, more preferably 5% or less, more preferably 3% or less, and even more preferably substantially non-existent, relative to the total mass of the above composition.

[0928] While emphasizing the stability brought about by UV irradiation, the content of the cyano-substituted compound is preferably set to 15% or less, more preferably 10% or less, more preferably 8% or less, more preferably 5% or less, more preferably 3% or less, and even more preferably substantially non-existent, relative to the total mass of the above composition.

[0929] Preferably, the content of compounds whose intramolecular ring structure is entirely composed of 6-membered rings is high. Relative to the total mass of the above composition, the content of compounds whose intramolecular ring structure is entirely composed of 6-membered rings is preferably 80% or more, more preferably 90% or more, even more preferably 95% or more, and most preferably the composition is substantially composed of compounds whose intramolecular ring structure is entirely composed of 6-membered rings.

[0930] In order to suppress the deterioration of the composition due to oxidation, it is preferable to reduce the content of compounds having a cyclohexene group as a ring structure. Relative to the total mass of the above composition, it is preferable to set the content of compounds having a cyclohexene group to 10% or less, preferably 8% or less, more preferably 5% or less, more preferably 3% or less, and even more preferably substantially none.

[0931] When attention is paid to improving viscosity and T NIIn cases of improvement, it is preferable to reduce the content of the following compound: 2-methylbenzene-1,4-diyl, which has hydrogen atoms in the molecule that can be substituted into halogens; relative to the total mass of the above composition, it is preferable to set the content of the above compound having 2-methylbenzene-1,4-diyl in the molecule to 10% or less, preferably 8% or less, more preferably 5% or less, more preferably 3% or less, and even more preferably substantially non-existent.

[0932] In this application, "substantially not containing" means not containing anything other than substances not intentionally contained.

[0933] When the composition of the first embodiment of the present invention contains a compound having an alkenyl group as a side chain, when the alkenyl group is attached to cyclohexane, the number of carbon atoms in the alkenyl group is preferably 2 to 5, and when the alkenyl group is attached to benzene, the number of carbon atoms in the alkenyl group is preferably 4 to 5, and the unsaturated bond of the alkenyl group is preferably not directly attached to benzene.

[0934] The average elastic constant (K) of the liquid crystal composition used in this invention AVG The lower limit is preferably 10 to 25, preferably 10, preferably 10.5, preferably 11, preferably 11.5, preferably 12, preferably 12.3, preferably 12.5, preferably 12.8, preferably 13, preferably 13.3, preferably 13.5, preferably 13.8, preferably 14, preferably 14.3, preferably 14.5, preferably 14.8, preferably 15, preferably 15.3, preferably 15.5, preferably 15.8, preferably 16, preferably 16.3, preferably 16.5, preferably 16.8, preferably 17, preferably 17.3, preferably 17.5, preferably 17.8, preferably... The upper limit is chosen as 18, preferably 25, preferably 24.5, preferably 24, preferably 23.5, preferably 23, preferably 22.8, preferably 22.5, preferably 22.3, preferably 22, preferably 21.8, preferably 21.5, preferably 21.3, preferably 21, preferably 20.8, preferably 20.5, preferably 20.3, preferably 20, preferably 19.8, preferably 19.5, preferably 19.3, preferably 19, preferably 18.8, preferably 18.5, preferably 18.3, preferably 18, preferably 17.8, preferably 17.5, preferably 17.3, preferably 17. In the context of minimizing power consumption, suppressing backlight light is more effective. The liquid crystal display element preferably improves light transmittance; therefore, it is preferable to use K... AVG The value of K is set low. When improving response speed is a priority, it is preferable to set K to a lower value. AVG The value is set to a high level.

[0935] To fabricate liquid crystal display elements in PS mode, lateral electric field type PSA mode, or lateral electric field type PSVA mode, the composition of the present invention may contain a polymerizable compound. Examples of usable polymerizable compounds include photopolymerizable monomers that polymerize via energy rays such as light, and examples of structures include polymerizable compounds having a liquid crystal framework composed of multiple six-membered rings, such as biphenyl derivatives and terphenyl derivatives. More specifically, difunctional monomers represented by the general formula (XX) are preferred.

[0936] [Chemistry 165]

[0937]

[0938] (where X) 201 and X 202 Each can be used independently to represent a hydrogen atom or a methyl group;

[0939] Sp 201 and Sp 202 Each is independently preferred to be an alkylene group representing a single bond and having 1 to 8 carbon atoms, or -O-(CH2). s -(In the formula, s represents an integer from 2 to 7, and the oxygen atom is attached to the aromatic ring);

[0940] Z 201 Represents -OCH2-, -CH2O-, -COO-, -OCO-, -CF2O-, -OCF2-, -CH2CH2-, -CF2CF2-, -CH=CH-COO-, -CH=CH-OCO-, -COO-CH=CH-, -OCO- CH=CH-, -COO-CH2CH2-, -OCO-CH2CH2-, -CH2CH2-COO-, -CH2CH2-OCO-, -COO-CH2-, -OCO-CH2-, -CH2-COO-, -CH2-OCO-, -CY 1 =CY 2 -(where Y is in the formula) 1 and Y 2 (Each can independently represent a fluorine atom or a hydrogen atom), -C≡C- or a single bond;

[0941] M 201 (This represents 1,4-phenylene, trans-1,4-cyclohexylene, or a single bond. Any hydrogen atom in the 1,4-phenylene group may be substituted with a fluorine atom.)

[0942] Preferred X 201 and X 202 Both represent diacrylate derivatives containing hydrogen atoms and X 201 and X 202 All of these represent any of the dimethacrylate derivatives of methyl, with X being preferred.201 and X 202 Compounds in which one atom represents hydrogen and the other methyl group. Regarding the polymerization rate of these compounds, diacrylate derivatives are the fastest, dimethacrylate derivatives are slower, and asymmetric compounds fall in between. The preferred method can be used depending on the application. In PSA display elements, dimethacrylate derivatives are particularly preferred.

[0943] Sp 201 and Sp 202 Each can be independently represented by a single bond, an alkylene group with 1 to 8 carbon atoms, or -O-(CH2). s - In PSA display elements, it is preferred that at least one component is a single bond, preferably compounds in which both components represent single bonds, or compounds in which one component is a single bond and the other represents an alkylene group having 1 to 8 carbon atoms or O-(CH2). s - in this case, 1 to 4 alkyl groups are preferred, and s is preferably 1 to 4.

[0944] Z 201 Preferably, it is -OCH2-, -CH2O-, -COO-, -OCO-, -CF2O-, -OCF2-, -CH2CH2-, -CF2CF2- or a single bond, more preferably -COO-, -OCO- or a single bond, and particularly preferably a single bond.

[0945] M 201 Z represents a 1,4-phenylene, trans-1,4-cyclohexylene, or single bond, preferably a 1,4-phenylene or single bond, where any hydrogen atom can be substituted by a fluorine atom. When C represents a ring structure other than a single bond, Z... 201 It is also preferred to use a linker base other than a single bond, when M 201 In the case of a single bond, Z 201 Single bonds are preferred.

[0946] From these aspects, in the general formula (XX), Sp 201 and Sp 202 Specifically, the preferred ring structure is the one described below.

[0947] In the general formula (XX), when M 201 When a single bond is represented and the ring structure is formed by two rings, it is preferable to represent the following formulas (XXa-1) to (XXa-5), more preferably formulas (XXa-1) to (XXa-3), and particularly preferably formula (XXa-1).

[0948] [Chemistry 166]

[0949]

[0950] (In the formula, both ends are connected to Sp)201 or Sp 202 。 )

[0951] Polymer compounds containing these backbones have the best orientation control after polymerization, which is most suitable for PSA-type liquid crystal display elements. They can achieve a good orientation state, so display unevenness will be suppressed or will not occur at all.

[0952] From the above description, as polymerizable monomers, general formulas (XX-1) to (XX-4) are particularly preferred, and general formula (XX-2) is the most preferred.

[0953] [Chemistry 167]

[0954]

[0955] (In the formula, benzene can also be replaced by fluorine atoms, Sp) 20 This refers to alkylene groups with 2 to 5 carbon atoms.

[0956] When monomers are added to the compositions of the present invention, polymerization will occur even in the absence of a polymerization initiator, but a polymerization initiator may be included to promote polymerization. Examples of polymerization initiators include: benzoin ethers, benzophenones, acetophenones, benzil ketals, acylphosphine oxides, etc.

[0957] The compositions of the present invention may further contain a compound represented by general formula (Q).

[0958] [Chemistry 168]

[0959]

[0960] (where R is in the formula) Q M represents a straight-chain alkyl or branched alkyl group having 1 to 22 carbon atoms, wherein one or more CH2 groups in the alkyl group may be replaced by -O-, -CH=CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF2O-, or -OCF2- in a manner in which oxygen atoms are not directly adjacent. Q (This indicates trans-1,4-cyclohexylene, 1,4-phenylene, or a single bond.)

[0961] R QThe alkyl group represents a straight-chain alkyl or branched alkyl group having 1 to 22 carbon atoms, wherein one or more CH2 groups in the alkyl group may be replaced by -O-, -CH=CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF2O-, or -OCF2- in such a manner that oxygen atoms are not directly adjacent. Preferably, it is a straight-chain alkyl or straight-chain alkoxy group having 1 to 10 carbon atoms, wherein one CH2 group is replaced by -OCO- or COO-, or a branched alkyl group is replaced by -OCO- or COO-. More preferably, it is a straight-chain alkyl group having 1 to 20 carbon atoms, wherein one CH2 group is replaced by -OCO- or COO-, or a branched alkyl group is replaced by -OCO- or -COO-. Q It represents trans-1,4-cyclohexene, 1,4-phenylene, or a single bond, preferably trans-1,4-cyclohexene or 1,4-phenylene.

[0962] The compound represented by general formula (Q) is more specifically preferred to be the compound represented by general formulas (Qa) to (Qd).

[0963] [Chemistry 169]

[0964]

[0965] In the formula, R Q1 Preferably, it is a straight-chain alkyl or branched alkyl group having 1 to 10 carbon atoms, R Q2 Preferably, it is a straight-chain alkyl or branched alkyl group having 1 to 20 carbon atoms, R Q3 Preferably, it is a straight-chain alkyl, branched-chain alkyl, straight-chain alkoxy, or branched-chain alkoxy group having 1 to 8 carbon atoms. Q Preferably, it is a straight-chain alkylene or branched alkylene with 1 to 8 carbon atoms. Among the compounds represented by general formulas (Qa) to (Qd), compounds represented by general formulas (Qc) and (Qd) are more preferred.

[0966] The composition of the present invention preferably contains one or two compounds represented by general formula (Q), more preferably one to five compounds, and the content of the compounds is preferably 0.001 to 1%, more preferably 0.001 to 0.1%, and particularly preferably 0.001 to 0.05%.

[0967] Furthermore, the antioxidants or light stabilizers that can be used in the present invention are more specifically preferred to be the compounds represented by (III-1) to (III-38) below.

[0968] [Chemistry 170]

[0969]

[0970] [Chemistry 171]

[0971]

[0972] [Chemistry 172]

[0973]

[0974] [Chemistry 173]

[0975]

[0976] [Chemistry 174]

[0977]

[0978] [Chemistry 175]

[0979]

[0980] [Chemistry 176]

[0981]

[0982] [Chemistry 177]

[0983]

[0984] [Chemistry 178]

[0985]

[0986] (In the formula, n represents an integer from 0 to 20.)

[0987] The composition of the present invention preferably contains one or more compounds represented by general formula (Q) or compounds selected from general formulas (III-1) to (III-38), more preferably one to five compounds, and the content is preferably 0.001 to 1%, more preferably 0.001 to 0.1%, and particularly preferably 0.001 to 0.05%.

[0988] Regarding the composition containing a polymeric compound of the present invention, the polymeric compound is polymerized by irradiation with ultraviolet light, thereby imparting liquid crystal orientation capability, and is used in a liquid crystal display element that utilizes the birefringence of the composition to control the amount of light transmitted.

[0989] When the liquid crystal composition of the present invention contains a polymerizable compound, in order to obtain good alignment properties of the liquid crystal, an appropriate polymerization rate is desired. Therefore, a polymerization method by irradiating the liquid crystal with active energy rays such as ultraviolet rays or electron beams, either individually, in combination, or sequentially, is preferred. When using ultraviolet light, a polarized light source or a non-polarized light source can be used. In addition, when polymerization is carried out while the composition containing the polymerizable compound is sandwiched between two substrates, the substrate at least on the irradiated side must be given appropriate transparency relative to the active energy rays. Alternatively, the following method can be used: after polymerizing only specific portions by using a mask during light irradiation, the orientation state of the unpolymerized portions is changed by changing conditions such as electric field, magnetic field, or temperature, and then further polymerized by irradiating them with active energy rays. In particular, when performing ultraviolet exposure, it is preferable to perform ultraviolet exposure while applying an alternating electric field to the composition containing the polymerizable compound. The applied alternating electric field is preferably an alternating current with a frequency of 10 Hz to 10 kHz, more preferably an alternating current with a frequency of 60 Hz to 10 kHz, and the voltage can be selected according to the desired pretilt angle of the liquid crystal display element. In other words, the pretilt angle of a liquid crystal display element can be controlled by the applied voltage. In a liquid crystal display element of the lateral electric field type MVA mode, from the viewpoint of orientation stability and contrast, it is preferable to control the pretilt angle between 80 degrees and 89.9 degrees.

[0990] The irradiation temperature is preferably within a temperature range that maintains the liquid crystal state of the composition of the present invention. Polymerization is preferably carried out at a temperature close to room temperature, typically 15–35°C. As the lamp generating ultraviolet light, metal halide lamps, high-pressure mercury lamps, ultra-high-pressure mercury lamps, etc., can be used. Furthermore, the wavelength of the irradiated ultraviolet light is preferably ultraviolet light whose wavelength region is not in the absorption wavelength region of the composition, and it is preferable to use ultraviolet light that is filtered out (cut) as needed. The intensity of the irradiated ultraviolet light is preferably 0.1 mW / cm². 2 ~100W / cm 2 More preferably 2mW / cm 2 ~50W / cm 2 The energy of the ultraviolet radiation can be adjusted appropriately, preferably 10 mJ / cm². 2 Up to 500J / cm 2 More preferably 100 mJ / cm 2 Up to 200J / cm 2 The intensity can be varied when irradiating with ultraviolet light. The irradiation time is appropriately selected based on the intensity of the ultraviolet light, preferably from 10 seconds to 3600 seconds, and more preferably from 10 seconds to 600 seconds.

[0991] As a method for polymerizing polymerizable compounds, in order to obtain good alignment properties of liquid crystals, an appropriate polymerization rate is desired. Therefore, a method of polymerization by irradiating with active energy rays such as ultraviolet rays or electron beams, either individually, in combination, or sequentially, is preferred. When using ultraviolet light, a polarized light source or a non-polarized light source can be used. Furthermore, when polymerization is performed with the composition containing the polymerizable compound sandwiched between two substrates, the substrate at least on the irradiated side must be given appropriate transparency relative to the active energy rays. Alternatively, the following method can be used: after polymerizing only specific portions using a mask during light irradiation, conditions such as electric field, magnetic field, or temperature are changed to alter the alignment state of the unpolymerized portions, and then active energy rays are irradiated to polymerize them. Especially during ultraviolet exposure, it is preferable to apply an alternating electric field to one side of the composition containing the polymerizable compound for ultraviolet exposure. The applied alternating electric field is preferably an alternating current with a frequency of 10 Hz to 10 kHz, more preferably 60 Hz to 10 kHz, and the voltage can be selected according to the desired pretilt angle of the liquid crystal display element. That is, the pretilt angle of the liquid crystal display element can be controlled by the applied voltage. In liquid crystal display elements of the lateral electric field type MVA mode, from the viewpoint of orientation stability and contrast, it is preferable to control the pretilt angle to be 80 degrees to 89.9 degrees.

[0992] The irradiation temperature is preferably within a temperature range that maintains the liquid crystal state of the composition of the present invention. Polymerization is preferably carried out at a temperature close to room temperature, typically 15–35°C. As the lamp generating ultraviolet light, metal halide lamps, high-pressure mercury lamps, ultra-high-pressure mercury lamps, etc., can be used. Furthermore, as the wavelength of the irradiated ultraviolet light, it is preferable to irradiate ultraviolet light in a wavelength region outside the absorption wavelength region of the composition, and it is preferable to use ultraviolet light that is filtered out as needed. The intensity of the irradiated ultraviolet light is preferably 0.1 mW / cm². 2 ~100W / cm 2 More preferably 2mW / cm 2 ~50W / cm 2 The energy of the ultraviolet radiation can be adjusted appropriately, preferably 10 mJ / cm². 2 Up to 500J / cm 2 More preferably 100 mJ / cm 2 Up to 200J / cm 2 The intensity of ultraviolet (UV) radiation can be varied during irradiation. The duration of UV irradiation is selected appropriately based on the intensity of the UV radiation, preferably from 10 to 3600 seconds, and more preferably from 10 to 600 seconds.

[0993] Example

[0994] In the embodiments, the following abbreviations are used to describe the compounds. It should be noted that n represents a natural number.

[0995] (Side chain)

[0996] -n -C n H 2n+1 A straight-chain alkyl group with n carbon atoms

[0997] n-C n H 2n+1 - A straight-chain alkyl group with n carbon atoms

[0998] -On -OC n H 2n+1 A straight-chain alkoxy group with n carbon atoms

[0999] nO- C n H 2n+1 O- A straight-chain alkoxy group with n carbon atoms

[1000] -V -CH=CH2

[1001] V- CH2=CH-

[1002] -V1 -CH=CH-CH3

[1003] 1V- CH3-CH=CH-

[1004] -2V -CH2-CH2-CH=CH3

[1005] V2- CH2=CH-CH2-CH2-

[1006] -2V1 -CH2-CH2-CH=CH-CH3

[1007] 1V2- CH3-CH=CH-CH2-CH2

[1008] (Connecting base)

[1009] -n- -C n H 2n -

[1010] -nO- -C n H 2n -O-

[1011] -On- -OC n H 2n -

[1012] -COO- -C(=O)-O-

[1013] -OCO- -OC(=O)-

[1014] -CF2O- -CF2-O-

[1015] -OCF2- -O-CF2-

[1016] (Ring structure)

[1017] [Chemistry 179]

[1018]

[1019] In the embodiments, the following abbreviations are used to describe the compounds.

[1020] (Ring structure)

[1021] [Chemistry 180]

[1022]

[1023] (Side chain structure and link structure)

[1024] [Table 1]

[1025] n (number) at the end <![CDATA[C n H 2n+1 -]]> -ndOFF- <![CDATA[-(CH2) n-1 -HC=CFF]]> -2- <![CDATA[-CH2CH2-]]> -1O- <![CDATA[-CH2O- <!-- 114 -->]]> -O1- <![CDATA[-OCH2-]]> -V- -CO- -VO- -COO- -CFFO- <![CDATA[-CF2O-]]> -F -F -Cl -Cl -OCFFF -OCF3 -CFFF -CF3 -On <![CDATA[-OC n H 2n+1 ]]> ndm- <![CDATA[C n H 2n+1 -HC=CH-(CH2) m-1 -]]> -ndm <![CDATA[-(CH2) n-1 -HC=CH-(CH2) m- ]]> -Ondm <![CDATA[-O-(CH2) n-1 -HC=CH-]]> -ndm- <![CDATA[-(CH2) n-1 -HC=CH-(CH2) m-1 ]]> -CN -C≡N -T- -C≡C-

[1026] The characteristics measured in the examples are as follows.

[1027] T NI Nematic-isotropic liquidus transition temperature (°C)

[1028] Δn: Refractive index anisotropy at 20℃

[1029] Δε: Dielectric constant anisotropy at 20℃

[1030] η: Viscosity at 20℃ (mPa·s)

[1031] γ1: Rotational viscosity at 20℃ (mPa·s)

[1032] K 11 The elastic constant K at 20℃ 11 (pN)

[1033] K 33 The elastic constant K at 20℃ 33 (pN)

[1034] K AVG :K 11 With K 33 The average value (K) AVG =(K 11 +K 33 ) / 2)(pN)

[1035] Drive voltage evaluation: The drive voltage (V) of the IPS liquid crystal display element at 20°C was measured using an electro-optical measurement device DMS703 manufactured by Autronic Corporation. The obtained values ​​were evaluated as described below.

[1036] ◎: Less than 8.5

[1037] 〇: 8.5 or higher and less than 10

[1038] △: 10 or higher but less than 11.5

[1039] ×: 13.0 or above

[1040] Response speed evaluation: The response speed of the IPS liquid crystal display element at 20°C was measured using an electro-optical measurement device DMS703 manufactured by Autronic Corporation. The obtained values ​​were evaluated as described below.

[1041] ◎: Less than 9.0ms

[1042] 0: 9.0 or higher and less than 10ms

[1043] △: 10 or more but less than 11.0ms

[1044] ×: 11.0ms or more

[1045] Transmittance evaluation: The electro-optical characteristics of the IPS liquid crystal display element were measured using the DMS703 electro-optical measurement device manufactured by Autronic Corporation, and the maximum luminance was used as the transmittance for evaluation.

[1046] Contrast Ratio Evaluation: The electro-optical characteristics of the IPS liquid crystal display element were measured using an electro-optical measurement device (DMS703) manufactured by Autronic Corporation, and the "maximum luminance / minimum luminance" ratio was calculated as the contrast ratio parameter. The obtained parameter values ​​were evaluated in four stages as described below.

[1047] ◎:1600 and above

[1048] 〇: 1400 or higher and less than 1600

[1049] △: 1200 or higher and less than 1400

[1050] ×: Less than 1200

[1051] Vth: The voltage at which the transmittance changes by 10% when liquid crystal is encapsulated in a TN cell with a thickness of 6 micrometers and a cross nicol polarizer at 298K.

[1052] VHR: Voltage retention rate (%) at 333K under conditions of 60Hz frequency and 5V applied voltage.

[1053] VHR after heat resistance test: After the electro-optical property evaluation TEG (test element group) containing the composition sample was kept in a constant temperature bath at 130°C for 1 hour, the VHR was measured under the same conditions as the above VHR measurement method.

[1054] Burn-in:

[1055] Burn-in evaluation of liquid crystal display elements involves displaying a specific fixed pattern within the display area for an arbitrary test time, then uniformly displaying the entire screen, and measuring the test time until the afterimage of the fixed pattern reaches an unacceptable level.

[1056] 1) The so-called test time mentioned here refers to the display time of the fixed pattern. The longer the time, the better the ability to suppress the generation of afterimages and the higher the performance.

[1057] 2) The so-called unacceptable degree of afterimage refers to the degree of afterimage observed that is unacceptable in the determination of whether the shipment is qualified or not.

[1058] Sample A: 1000 hours

[1059] Sample B: 500 hours

[1060] Sample C: 200 hours

[1061] Sample D: 100 hours

[1062] The performance ranking is A > B > C > D.

[1063] Drip marks:

[1064] The evaluation of drip marks on liquid crystal display devices involves visually observing drip marks that appear whitish when the entire surface is black, and the evaluation is conducted in the following 5 stages.

[1065] 5: No dripping marks (Excellent)

[1066] 4: Even if there are very few drops, it is within an acceptable range (good).

[1067] 3: A few drops are present, which is at the critical level for determining whether the product is acceptable (subject to certain conditions).

[1068] 2: There are drips, and they are of an unacceptable degree (not allowed).

[1069] 1: There are drip marks and the condition is quite bad (poor).

[1070] Process adaptability:

[1071] Process adaptability is assessed in the ODF process by using a constant volume metering pump to add liquid crystal in increments of 50 pL at 0–100, 101–200, 201–300, and so on. The mass of the liquid crystal added in each of the 100 additions is measured, and the number of additions required to determine the extent to which the mass deviation makes the process unsuitable for ODF is evaluated.

[1072] The more times the solution is added, the longer and more stable the addition can be, and the higher the process adaptability.

[1073] Sample A: 95,000 times

[1074] Sample B: 40,000 times

[1075] Sample C: 100,000 times

[1076] Sample D: 10,000 times

[1077] The performance ranking is C > A > B > D.

[1078] Low-temperature storage:

[1079] The evaluation of low-temperature preservation involves weighing 0.5 g of the prepared composition into a 1 mL sample vial and storing it in a temperature-controlled test chamber at -25°C for 240 hours. The formation of precipitates from the composition is then visually observed, and the time before precipitation is observed is measured. A longer test time before precipitation occurs indicates better low-temperature preservation.

[1080] Solubility at low temperatures:

[1081] The evaluation of solubility at low temperatures involves weighing 1g of the composition into a 2mL sample vial after preparation. The vial is placed in a temperature-controlled test chamber, and the following operating conditions are continuously applied: "-20℃ (hold for 1 hour) → temperature increase (0.1℃ / min) → 0℃ (hold for 1 hour) → temperature increase (0.1℃ / min) → 20℃ (hold for 1 hour) → temperature decrease (-0.1℃ / min) → 0℃ (hold for 1 hour) → temperature decrease (-0.1℃ / min) → -20℃". The temperature is then visually observed to detect the formation of precipitates from the composition, and the test time when precipitates are observed is measured.

[1082] The longer the test time, the more stably the liquid crystal phase can be maintained, and the solubility at low temperatures is good.

[1083] Sample A: 72 hours

[1084] Sample B: 600 hours

[1085] Sample C: 384 hours

[1086] Sample D: 1440 hours

[1087] The performance ranking is D > B > C > A.

[1088] Volatile / Pollution from Manufacturing Equipment:

[1089] The volatility of liquid crystal materials was evaluated by visually observing the foaming of the liquid crystal material through the operation of a vacuum stirring degassing mixer using a stroboscope. Specifically, 0.8 kg of the composition was added to a dedicated container of a 2.0 L vacuum stirring degassing mixer, and the mixer was operated at a revolution speed of 15 s⁻¹ and a rotation speed of 7.5 s⁻¹ under degassing at 4 kPa, and the time until foaming began was measured.

[1090] The longer the time before foaming begins, the less likely it is to volatilize and the lower the possibility of contaminating the manufacturing equipment, thus resulting in higher performance.

[1091] Sample A: 200 seconds

[1092] Sample B: 45 seconds

[1093] Sample C: 60 seconds

[1094] Sample D: 15 seconds

[1095] The performance ranking is A > C > B > D.

[1096] (Examples 1-33)

[1097] The liquid crystal composition of the present invention and the liquid crystal display element using the composition were prepared, and their physical properties were measured.

[1098] [Table 2]

[1099] Example 1 3-Cy-Cy-V 44 3-Cy-Cy-V1 12 1V2-Ph-Ph-1 6 V-Cy-Cy-Ph-1 11.5 V2-Cy-Cy-Ph-1 9.5 V2-Ph-Ph1-Ph-2V 6 3-Pr-Ph-Ph3-CFFO-Ph3-F 4.5 3-Ph-Ph1-Ph3-CFFO-Ph3-F 6 3-Ph-Ph-Ph1-Ph3-F 0.5 Total 100 <![CDATA[T NI [℃]]]> 81 Δn 0.098 <![CDATA[γ1[mPa·s]]]> 33 Δε 2.4

[1100] [Table 3]

[1101] Example 2 3-Cy-Cy-V 32.5 3-Cy-Cy-V1 2.5 V-Cy-Cy-Ph-1 10 V2-Ph-Ph1-Ph-2V 2 1V2-Ph-Ph1-Ph-2V1 4 3-Cy-Cy-Ph3-F 8 3-Ph-Ph3-CFFO-Ph3-F 9 3-Cy-Cy-CFFO-Ph3-F 9.5 3-Cy-Cy-Ph1-Ph3-F 4 3-Pr-Ph-Ph3-CFFO-Ph3-F 8.5 3-Ph-Ph1-Ph3-CFFO-Ph3-F 4 3-Cy-Ph-Ph3-Ph1-OCF3 6 Total 100 <![CDATA[T NI [℃]]]> 95 Δn 0.107 <![CDATA[γ1[mPa·s]]]> 68 Δε 8.0

[1102] [Table 4]

[1103] Example 3 3-Cy-Cy-V 44 3-Cy-Cy-V1 16 5-Ph-Ph-1 3.5 3-Cy-Cy-Ph-1 6 3-Cy-Cy-Ph-3 1.5 V2-Ph-Ph1-Ph-2V 7 1V2-Ph-Ph1-Ph-2V1 5 3-Ph1-Np3-F 4 3-Cy-Ph1-Np3-F 6 2-Ph-Ph1-Np3-F 5 2-Cy-Cy-Ph-Ph1-F 2 Total 100 <![CDATA[T NI [℃]]]> 79 Δn 0.107 <![CDATA[γ1[mPa·s]]]> 37 Δε 2.3

[1104] [Table 5]

[1105] Example 4 3-Cy-Cy-V 45.5 V-Cy-Cy-Ph-1 2 V2-Ph-Ph1-Ph-2V 5.5 3-Cy-Cy-Ph3-F 8 2-Ph3-O1-Cy-Ph3-Ph3-F 5.5 3-Ph3-O1-Cy-Ph3-Ph3-F 4.5 3-Ph3-O1-Ph-Np3-F 10 3-Ph-Ph3-CFFO-Np3-F 10 3-Ph-Ph1-Ph3-CFFO-Np3-F 4 4-Ph-Ph1-Ph3-CFFO-Np3-F 5 Total 100 <![CDATA[T NI [℃]]]> 75 Δn 0.112 <![CDATA[γ1[mPa·s]]]> 74 Δε 11.7

[1106] [Table 6]

[1107] Example 5 3-Cy-Cy-V0 41 3-Cy-Cy-V1 11 5-Ph-Ph-1 2 V-Cy-Ph-Ph-3 4 3-Ph-Ph1-Ph3-O1-V 15 V2-Ph-Ph1-Ph-2V 6 3-Cy-Ph-Ph3-O1-Ph3-F 5 3-Ph3-O1-Oc-Ph-Ph3-F 4 4-Ph3-O1-Oc-Ph-Ph3-F 4 3-Ph3-O1-Oc-Ph1-Ph3-F 5 5-Ph3-O1-Oc-Ph1-Ph3-F 3 Total 100 <![CDATA[T NI [℃]]]> 86 Δn 0.120 <![CDATA[γ1[mPa·s]]]> 53 Δε 6.3

[1108] [Table 7]

[1109] Example 6 3-Ph-Ph-1 8 3-Cy-Cy-V 29 3-Cy-Cy-2 4 1V2-Ph-Ph1-Ph-2V1 4 3-Cy-1O-Ph5-O1 3 3-Cy-1O-Ph5-O2 7 2-Cy-Cy-1O-Ph5-O2 13 3-Cy-Cy-1O-Ph5-O2 13 4-Cy-Cy-1O-Ph5-O2 7 V-Cy-Cy-1O-Ph5-O2 6 3-Ph-Ph5-Ph-2 6 Total (%) 100 <![CDATA[T NI [℃]]]> 78 Δn 0.098 <![CDATA[γ1[mPa·s]]]> 86 Δε -3.6

[1110] [Table 8]

[1111] Example 7 3-Cy-Cy-V 20 3-Cy-Cy-V1 10 C-Cy-Ph-Ph-3 10 V2-Ph-Ph1-Ph-2V 8 1V2-Ph-Ph1-Ph-2V1 5 3Cy-1O-Ph5-O2 8 1V-Cy-1O-Ph5-O1 4 1V-Cy-1O-Ph5-O2 4 3-Cy-Cy-1O-Ph5-O2 9 V-Cy-Cy-1O-Ph5-O2 12 1V-Cy-Cy-1O-Ph5-O1 5 1V-Cy-Cy-1O-Ph5-O2 5 Total (%) 100 <![CDATA[T NI [℃]]]> 96 Δn 0.116 <![CDATA[γ1[mPa·s]]]> 110 Δε -3.6

[1112] [Table 9]

[1113] Example 8 3-Cy-Cy-V1 12 3-Cy-Cy-2 16 V2-Ph-Ph1-Ph-2V 7 1V-Cy-Cy-1O-Ph5-O2 6 1-Ph-2-Ph-Ph5-O2 4 3-Ph-2-Ph-Ph5-O2 6 3-Cy-Ph5-O2 13 3-Ph-Ph5-O2 13 3-Cy-Cy-Ph5-O2 7 2-Cy-Ph-Ph5-O2 8 3-Cy-Ph-Ph5-O2 8 Total (%) 100 <![CDATA[T NI [℃]]]> 77 Δn 0.125 <![CDATA[γ1[mPa·s]]]> 106 Δε -3.9

[1114] [Table 10]

[1115] Example 9 3-Cy-Cy-V 20 V2-Ph-Ph1-Ph-2V 4 1V2-Ph-Ph1-Ph-2V1 4 1V-Cy-Cy-1O-Ph5-O2 6 1-Ph-2-Ph-Ph5-O2 4 3-Ph-2-Ph-Ph5-O2 6 3-Cy-Ph5-O2 13 3-Ph-Ph5-O2 13 2-Cy-Cy-Ph5-O2 7 3-Cy-Cy-Ph5-O2 7 2-Cy-Ph-Ph5-O2 8 3-Cy-Ph-Ph5-O2 8 Total (%) 100 <![CDATA[T NI [℃]]]> 82 Δn 0.130 <![CDATA[γ1[mPa·s]]]> 121 Δε -4.5

[1116] [Table 11]

[1117] Example 10 3-Cy-Cy-V 26 3-Cy-Ph-Ph-2 6 V2-Ph-Ph1-Ph-2V 6 V-Cy-Cy-1O-Ph5-O2 6 1-Ph-2-Ph-Ph5-O2 4 3-Cy-Ph5-O2 7 3-Ph-Ph5-O2 13 2-Cy-Cy-Ph5-O2 10 3-Cy-Cy-Ph5-O2 10 2-Cy-Ph-Ph5-O2 6 3-Cy-Ph-Ph5-O2 6 Total (%) 100 <![CDATA[T NI [℃]]]> 86 Δn 0.122 <![CDATA[γ1[mPa·s]]]> 101 Δε -3.5

[1118] [Table 12]

[1119] Example 11 V-Cy-Cy-V 32 3-Ph-Ph-1 7 5-Ph-Ph-1 4 3-Cy-Cy-Ph-1 7 V2-Ph-Ph1-Ph-2V 7 1V2-Ph-Ph1-Ph-2V1 3 3-Cy-1O-Ph5-O2 5 2-Cy-Cy-1O-Ph5-O2 7 3-Cy-Cy-IPh5-O2 6 3-Cy-Ph-Ph5-O3 7 3-Cy-Ph-Ph5-O4 9 4-Cy-Ph-Ph5-O3 6 Total (%) 100 <![CDATA[T NI [℃]]]> 78 Δn 0.118 <![CDATA[γ1[mPa·s]]]> 67 Δε -2.4

[1120] [Table 13]

[1121] Example 12 3-Cy-Cy-V 15 3-Cy-Cy-V1 10 3-Cy-Cy-2 9 3-Cy-Cy-4 8 V2-Ph-Ph1-Ph-2V 9 2-Cy-Ph-Ph5-O2 3 3-Cy-Ph-Ph5-O2 8 3-Cy-Ph5-O2 6 3-Ph-Ph5-O2 14 3-Cy-Cy-Ph5-O2 10 5-Cy-Cy-Ph5-O2 8 Total (%) 100 <![CDATA[T ni [℃]]]> 79 Δn 0.106 <![CDATA[γ1[mPa·s]]]> 71 Δε -2.4

[1122] [Table 14]

[1123] Example 1十三 3-Cy-Cy-V 15 3-Cy-Cy-V1 10 3-Cy-Cy-2 9 V2-Ph-Ph1-Ph-2V 8 2-Cy-Ph-Ph5-O2 3 3-Cy-Ph-Ph5-O2 8 3-Ph-Ph5-Ph-2 9 3-Cy-Ph5-O2 20 3-Cy-Cy-Ph5-O2 10 5-Cy-Cy-Ph5-O2 8 Total (%) 100 <![CDATA[T NI [℃]]]> 82 Δn 0.112 <![CDATA[γ1[mPa·s]]]> 88 Δε It should be noted that "Example 1十三" might be a misrepresentation in the original Chinese. It's translated as "Example 1 thirteen" here. If it's supposed to be something else, please correct the original text for a more accurate translation. -2.7

[1124] As can be seen from the above, the present invention exhibits excellent effects.

Claims

1. A liquid crystal composition having negative dielectric anisotropy, comprising one or more compounds represented by formulas (i-4) to (i-6), It further contains one or more compounds selected from those represented by general formulas (N-1), (N-2), and (N-3). In the formula, R N11 R N12 R N21 R N22 R N31 and R N32 Each of the alkyl groups having 1 to 8 carbon atoms can be independently represented, and one or more non-adjacent -CH2- atoms in the alkyl group can be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-. A N11 A N12 A N21 A N22 A N31 and A N32 Each of the following groups can be represented independently: (a) 1,4-cyclohexylene, wherein one -CH2- or two or more non-adjacent -CH2- groups may be substituted with -O-. (b) 1,4-Phenylidene, where one -CH= or two or more non-adjacent -CH= groups may be substituted with -N=. (c) Naphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl, or decahydronaphthalene-2,6-diyl, wherein one -CH= or two or more non-adjacent -CH= in naphthalene-2,6-diyl or 1,2,3,4-tetrahydronaphthalene-2,6-diyl may be substituted with -N=, and (d)1,4-cyclohexeneyl The above groups (a), (b), (c), and (d) can also be independently replaced by cyano, fluorine, or chlorine atoms, respectively; Z N11 Z N12 Z N21 Z N22 Z N31 and Z N32 Each of these can be used to independently represent a single bond, -CH2CH2-, -(CH2)4-, -OCH2-, -CH2O-, -COO-, -OCO-, -OCF2-, -CF2O-, -CH=NN=CH-, -CH=CH-, -CF=CF-, or -C≡C-. X N21 Indicates a hydrogen atom or a fluorine atom; T N31 It represents -CH2- or oxygen atom; n N11 n N12 n N21 n N22 n N31 and n N32 Each of the integers from 0 to 3 can be represented independently, n N11 +n N12 n N21 +n N22 and n N31 +n N32 Each of the following is independently 1, 2, or 3, and there are multiple A's. N11 ~A N32 Z N11 ~Z N32 In some cases, they can be the same or different; among them, It does not include the compounds represented by formulas (i-4) to (i-6).

2. The liquid crystal composition according to claim 1, wherein the compound represented by general formula (N-1) is a compound represented by general formulas (N-1a) to (N-1g). In the formula, R N11 and R N12 R represents the general formula (N-1) N11 and R N12 Same meaning, n Na11 n represents 0 or 1. Nb11 Indicates 1 or 2, n Nc11 n represents 0 or 1. Nd11 Indicates 1 or 2, n Ne11 Indicates 1 or 2, n Nf12 Indicates 1 or 2, n Ng11 A represents 1 or 2. Ne11 Indicates trans-1,4-cyclohexylene or 1,4-phenylene, A Ng11 It represents trans-1,4-cyclohexene, 1,4-cyclohexenyl, or 1,4-phenylene, but at least one represents 1,4-cyclohexenyl, Z Ne11 It represents a single bond or ethylene, but at least one of them represents ethylene.

3. The liquid crystal composition according to claim 1 or 2, further comprising one or more compounds represented by general formula (L), In the formula, R L1 and R L2 Each of the alkyl groups having 1 to 8 carbon atoms can be independently represented, and one or more non-adjacent -CH2- atoms in the alkyl group can be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-. n L1 It represents 0, 1, 2, or 3; A L1 A L2 and A L3 Each of the following groups can be represented independently: (a) 1,4-cyclohexylene, wherein one -CH2- or two or more non-adjacent -CH2- groups may be substituted with -O-. (b) 1,4-Phenylidene, wherein one -CH= or two or more non-adjacent -CH= groups may be substituted with -N=, and (c) Naphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl, or decahydronaphthalene-2,6-diyl, wherein one -CH= or two or more non-adjacent -CH= in naphthalene-2,6-diyl or 1,2,3,4-tetrahydronaphthalene-2,6-diyl may be substituted with -N=. The above groups (a), (b) and (c) can also be independently replaced by cyano, fluorine or chlorine atoms; Z L1 and Z L2 Each of these can be used to independently represent a single bond, -CH2CH2-, -(CH2)4-, -OCH2-, -CH2O-, -COO-, -OCO-, -OCF2-, -CF2O-, -CH=NN=CH-, -CH=CH-, -CF=CF-, or -C≡C-. In n L1 It is 2 or 3 and there are multiple A's. L2 In the case of n, they can be the same or different. L1 It is 2 or 3 and there are multiple Z. L2 In some cases, they can be the same or different; among them, It does not include the compounds represented by formulas (i-4) to (i-6), (N-1), (N-2) and (N-3).

4. A liquid crystal display element using the liquid crystal composition according to any one of claims 1 to 3.

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