KR20190141650A - Liquid crystal display element - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide an n-type liquid crystal composition having improved viewing angle characteristics while satisfying various properties required for a so-called n-type liquid crystal composition having a dielectric constant anisotropy (Δε), and providing a liquid crystal display device using the same. It is. The total content of the compound represented by the general formula (i) to the total amount of the composition is 3% or more, and the total content of the compound represented by the general formula (ii) to the total composition is 3% or more, and represented by the general formula (i) Provided is a liquid crystal composition having a negative dielectric anisotropy with a total content of the compound represented by the general formula (i) relative to the total amount of the compound, the compound represented by the general formula (ii), and the compound represented by the general formula (L) of 20% or more. Moreover, the liquid crystal display element using these is provided.

Description

Liquid crystal display element

The present invention relates to a so-called n-type liquid crystal composition in which dielectric anisotropy (Δε) is negative and a liquid crystal display element using the same.

The liquid crystal display element using the composition which (DELTA) (epsilon) shows a negative value is widely used for liquid crystal TVs, etc., The composition used for these uses has calculated | required very high characteristic in recent years. Specifically, high brightness, improved viewing angle characteristics, and high resolution are required while responding to high speed response, low power consumption, long-term and short-term reliability, and wide liquid crystal phase temperature ranges corresponding to moving picture display. For this reason, the liquid crystal composition (patent document 1, 2, 3) which used conventionally was made to meet the required characteristic, and the optimization of the liquid crystal compound and content optimization became required. In addition, there is a demand such as stable dischargeability of the composition in the ODF process that is difficult to cause display defects such as burning of the display element and hardly occurs dropping during manufacturing. .

WO2016 / 017569 publication Japanese Patent Application Laid-Open No. 2016-040368 Japanese Patent Application Laid-Open No. 2016-033132

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide an n-type liquid crystal composition having improved viewing angle characteristics while satisfying various properties required for a so-called n-type liquid crystal composition having a dielectric constant anisotropy (Δε). It is.

MEANS TO SOLVE THE PROBLEM This inventor discovered what can solve the said subject by examining various liquid crystal compounds and various chemical substances, and adjusting their selection and content, and came to complete this invention.

The present invention is one or two or more compounds selected from compounds represented by general formula (i), one or two or more compounds selected from compounds represented by general formula (ii), and general formula (N-1d). 1 or 2 or more compounds selected from compounds represented by), 1 or 2 or more compounds selected from compounds represented by formula (N-1), and a compound represented by formula (L) Contains one or two or more compounds,

The total content of the compound represented by the general formula (i) to the total amount of the composition is 3% or more, and the total content of the compound represented by the general formula (ii) to the total composition is 3% or more, and represented by the general formula (i) Provided is a liquid crystal composition having a negative dielectric anisotropy with a total content of the compound represented by the general formula (i) relative to the total amount of the compound, the compound represented by the general formula (ii), and the compound represented by the general formula (L) of 20% or more. In addition, a liquid crystal display device using the same is provided.

(In formula, R <^i1> and R <^ii1> respectively independently represent a C1-C5 alkyl group, R <^i2> and R <^ii2> represent a methyl group or a methoxy group each independently,

R ^Nd11 , R ^Nd12 , R ^N11 , R ^N12 , R ^L1 and R ^L2 each independently represent an alkyl group having 1 to 8 carbon atoms, and one or more adjacent two or more -CH ₂ -in the alkyl group are each May be independently substituted by -CH = CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-,

n ^Nd11 represents 1, 2 or 3, n ^N11 and n ^N12 represent 0, 1, 2 or 3, but n ^N11 + n ^N12 represents 1, 2 or 3, n ^L1 represents 0, 1, 2 Or 3,

A ^N11 , A ^N12 , A ^L1 , A ^L2 and A ^L3 are each independently

(a) 1,4-cyclohexylene group (one -CH ₂ -present in this group or two or more non-adjacent -CH ₂ -may be substituted with -O-) and

(b) 1,4-phenylene group (one -CH = present in this group or two or more non-adjacent -CH = may be substituted by -N =)

(c) naphthalene-2,6-diyl group, 1,2,3,4-tetrahydronaphthalene-2,6-diyl group or decahydronaphthalene-2,6-diyl group (naphthalene-2,6-diyl group Alternatively, one -CH = or two or more non-adjacent -CH = present in the 1,2,3,4-tetrahydronaphthalene-2,6-diyl group may be substituted with -N =.)

The group selected from the group which consists of these, said group (a), group (b), and group (c) may be respectively independently substituted by the cyano group, a fluorine atom, or a chlorine atom,

Z ^{N11, N12} Z, Z ^L1 and ^L2 are each a single bond Z _{independently, -CH 2 CH 2 -, -} (CH 2) 4 -, -OCH 2 -, -CH 2 O-, -COO-, -OCO -, -OCF _2- , -CF ₂ O-, -CH = NN = CH-, -CH = CH-, -CF = CF- or -C≡C-,

When a plurality of A ^N11 , A ^N12 , A ^L1 , A ^L2 and / or A ^L3 are present, they may be the same or different, and when a plurality of Z ^N11 , Z ^N12 , Z ^L1 and / or Z ^L2 are present Although they may be same or different, the compound represented by general formula (N-1) is represented by general formula (L) except the compound represented by general formula (N-1d), i), the compounds represented by general formula (ii), general formula (N-1d) and general formula (N-1) are excluded.)

The so-called n-type liquid crystal composition in which Δε of the present invention is negative satisfies various properties required for the n-type liquid crystal composition, has improved viewing angle characteristics, and has excellent display characteristics. The liquid crystal display element of this invention is useful for display elements, such as a liquid crystal TV and a monitor.

As mentioned above, this invention relates to the specific n-type liquid crystal composition and the liquid crystal display element using the same. Hereinafter, the aspect of embodiment of the liquid crystal composition in this invention is demonstrated first.

The composition of this invention is 1 type (s) or 2 or more types of compounds chosen from the compound represented by general formula (i), 1 type (s) or 2 or more types of compounds chosen from the compound represented by general formula (ii), and general formula (N 1 or 2 or more compounds selected from compounds represented by -1d), 1 or 2 or more compounds selected from compounds represented by general formula (N-1), and compounds represented by general formula (L) It contains one or two or more compounds selected.

The compound represented by general formula (i) corresponds to a genetically neutral compound (Δε is -2 to 2).

Although 1 type may be used for the compound represented by general formula (i), 2 or more types may be used for it. In view of ease of procurement, it is preferable to use only one kind.

In general formula (i), R ⁱ¹ is preferably an ethyl group, a propyl group or a pentyl group, an ethyl group or a propyl group is preferable, and a propyl group is preferable. R ⁱ² is preferably a methoxy group.

The lower limit of the preferable content of the compound represented by formula (i) to the total amount of the composition of the present invention is 3%, 5%, 7%, 9%, 10%, 12%, and 13%. . The upper limit of preferable content is 30%, 27%, 25%, 23%, 20%, 19%, 18%, and 17%.

As a compound represented by general formula (i), the compound represented by Formula (i-1)-(i-4) is preferable, and the compound represented by Formula (i-4) is preferable.

The lower limit of the preferable content of the compound represented by formula (i-4) to the total amount of the composition of the present invention is 3%, 5%, 7%, 9%, 10%, 12%, 13 %to be. The upper limit of preferable content is 30%, 27%, 25%, 23%, 20%, 19%, 18%, and 17%.

The compound represented by formula (ii) corresponds to a genetically neutral compound (Δε is -2 to 2).

Although 1 type may be used for the compound represented by general formula (ii), 2 or more types may be used for it. In view of ease of procurement, it is preferable to use only one kind.

In general formula (ii), ^Rii is preferably an ethyl group, a propyl group or a pentyl group, an ethyl group or a propyl group is preferable, and a propyl group is preferable. R ⁱⁱ² is preferably a methyl group.

The minimum with preferable content of the compound represented by Formula (ii) with respect to the total amount of the composition of this invention is 2%, 3%, 5%, 7%, and 9%. The upper limit of preferable content is 25%, 23%, 20%, 18%, 16%, and 14%.

As a compound represented by General formula (ii), the compound represented by Formula (ii-1)-(ii-4) is preferable, and the compound represented by Formula (ii-3) is preferable.

The lower limit of the preferable content of the compound represented by formula (ii-3) with respect to the total amount of the composition of the present invention is 3%, 5%, 7%, 9%, 10%, 12%, 13 %to be. The upper limit of preferable content is 30%, 27%, 25%, 23%, 20%, 19%, 18%, and 17%.

As for the compound represented by general formula (i) and the compound represented by general formula (ii), it is preferable to use many compounds represented by general formula (i), and the compound represented by general formula (i) as content It is desirable to make it 2% higher.

The lower limit with preferable total content of the compound represented by General formula (i) and the compound represented by General formula (ii) with respect to composition whole quantity is 15%, 18%, 20%, 22%, and 24%. . The upper limit of preferable content is 40%, 37%, 35%, 33%, 30%, and 28%.

The lower limit with preferable total content of the compound represented by general formula (i-4) and the compound represented by general formula (ii-3) with respect to composition whole quantity is 15%, 18%, 20%, and 22%. , 24%. The upper limit of preferable content is 40%, 37%, 35%, 33%, 30%, and 28%.

The compound represented by the general formula (N-1d) is a genetically negative compound (the sign of Δε is negative and its absolute value is greater than 2).

Although 1 type may be used for the compound represented by general formula (N-1d), 2 or more types may be used for it.

In general formula (N-1d), R ^Nd11 is a ^C1-C8 alkyl group, a C1- ^C8 alkoxy group, a ^C2-C8 alkenyl group, or a ^C2-C8 egg. A kenyloxy group is preferable, an alkyl group of 1 to 5 carbon atoms, an alkoxy group of 1 to 5 carbon atoms, an alkenyl group of 2 to 5 carbon atoms, or an alkenyloxy group of 2 to 5 carbon atoms is preferable, and a carbon More preferably, an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms is more preferable, an alkyl group having 2 to 5 carbon atoms or an alkenyl group having 2 to 3 carbon atoms is more preferable, Alkenyl groups (propenyl groups) are particularly preferred. The linear alkyl group having 1 to 5 carbon atoms, the alkoxy group having 1 to 4 carbon atoms, and the alkenyl group having 2 to 5 carbon atoms are preferable. In order to stabilize the nematic phase, the sum of carbon atoms and, if present, oxygen atoms is preferably 5 or less, and preferably linear.

Especially preferable are ethyl group and a propyl group.

R ^Nd12 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, and preferably carbon atoms An alkyl group of 1 to 5, an alkoxy group of 1 to 5 carbon atoms, an alkenyl group of 2 to 5 carbon atoms, or an alkenyloxy group of 2 to 5 carbon atoms is preferable, and an alkyl group of 1 to 5 carbon atoms or carbon Alkenyl groups of 2 to 5 atoms are more preferable, alkyl groups of 2 to 5 carbon atoms or alkenyl groups of 2 to 3 carbon atoms are more preferable, and alkenyl groups (propenyl groups) of 3 carbon atoms are particularly preferable. Do. The linear alkyl group having 1 to 5 carbon atoms, the alkoxy group having 1 to 4 carbon atoms, and the alkenyl group having 2 to 5 carbon atoms are preferable. In order to stabilize the nematic phase, the sum of carbon atoms and, if present, oxygen atoms is preferably 5 or less, and preferably linear.

Especially preferable are a methoxy group and an ethoxy group.

n ^Nd11 is preferably 1 or 2, and preferably contains a compound in which n ^Nd11 is 1 and a compound in which n ^Nd11 is 2.

^Although 1 or 2 types of compounds which n ^nd11 is 1 can be used, it is preferable to use 2 types from a viewpoint of the improvement of a lower nematic upper limit temperature, and when using 2 types, it is preferable to make R ^{Nd11 the} same substituent. .

^Although 1 or 2 types of compounds which n ^nd11 is 2 can be used, it is preferable to use 2 types from a viewpoint of the improvement of a lower nematic upper limit temperature, and when using 2 types, it is preferable to make R ^{Nd12 the} same substituent. .

n When ^Nd11 the use of compound 1 and n is ^Nd11 together two compounds, n is ^Nd11 is preferred to use more than two compounds.

As for the compound represented by general formula (N-1d), the compound represented by general formula (N-1-10) and the compound represented by general formula (N-1-11) are preferable.

The compound represented by general formula (N-1-10) is the following compound.

(In formula, R ^N1101 and R ^N1102 each independently represent the same meaning as R ^N11 and R ^N12 in General formula (N).)

R ^N1101 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, propyl group, butyl group, vinyl group or 1-propenyl group. R ^N1102 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and preferably an ethoxy group, propoxy group or butoxy group.

Although the compound represented by general formula (N-1-10) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

When set, if an emphasis on the improvement of Δε is preferable to set the content of a little high, when an emphasis on solubility at a low temperature when setting the content a little higher high and the effect, if an emphasis on T _ni is a bit higher content The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-10) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

Moreover, it is preferable that the compound represented by general formula (N-1-10) is a compound selected from the group of compounds represented by Formula (N-1-10.1)-a formula (N-1-10.21), and is a formula ( It is preferable that it is a compound represented by N-1-10.1)-(N-1-10.5), a formula (N-1-10.20), and a formula (N-1-10.21), Formula (N-1-10.1), Compounds represented by formulas (N-1-10.2), (N-1-10.20) and (N-1-10.21) are preferable, and formulas (N-1-10.1) and formulas (N-1-10.2) The compound represented by) is preferable, and the compound represented by a formula (N-1-10.1) is preferable.

Compounds represented by formulas (N-1-10.1), (N-1-10.2), (N-1-10.20) and (N-1-10.21) may be used alone or in combination. Although it is also possible, the lower limit of the preferable content of these compounds alone or with respect to the total amount of the composition of this invention is 3%, 5%, 8%, 10%, 13%, and 15%. The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, and 18% with respect to the total amount of the composition of this invention.

The compound represented by general formula (N-1-11) is the following compound.

(In formula, R < ^N1111 and R <^N1112> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N1111 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, propyl group, butyl group, vinyl group or 1-propenyl group. R ^N1112 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and an ethoxy group, propoxy group or butoxy group is preferable.

Although the compound represented by general formula (N-1-11) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

When set, if an emphasis on the improvement of Δε is preferable to set the content of a little high, when an emphasis on solubility at a low temperature when setting the content a little low, a high effect, when an emphasis on T _ni is a bit higher content The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-11) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

Moreover, it is preferable that the compound represented by general formula (N-1-11) is a compound selected from the group of compounds represented by Formula (N-1-11.1)-a formula (N-1-11.15), and is a formula ( It is preferable that it is a compound represented by N-1-11.1) (N-1-11.15), and the compound represented by a formula (N-1-11.2) and a formula (N-1-11.4) is preferable.

The compounds represented by the formulas (N-1-11.2) and (N-1-11.4) may be used alone or in combination, but are preferably used alone or in combination with respect to the total amount of the composition of the present invention. The lower limit of the content is 3%, 5%, 8%, 10%, 13%, and 15%. The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

Using three or four compounds selected from the compounds represented by formulas (N-1-10.1), (N-1-10.2), (N-1-11.2) and (N-1-11.4) It is preferable to use the combination of a compound represented by a formula (N-1-10.1), a formula (N-1-11.2), and a formula (N-1-11.4), and a formula (N-1-10.1) , And a combination of compounds represented by formula (N-1-10.2), formula (N-1-11.2) and formula (N-1-11.4) is preferably used.

Although 1 type may be used for the compound represented by general formula (N-1), 2 or more types may be used for it. The compound represented by general formula (N-1) corresponds to a genetically negative compound (the sign of Δε is negative and its absolute value is greater than 2).

It is preferable that the compound represented by general formula (N-1) is a compound in which (DELTA) epsilon is negative and the absolute value is larger than three.

In General Formula (N-1), R ^N11 and R ^N12 each independently represent an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or a carbon atom Alkenyloxy groups having 2 to 8 carbon atoms are preferable, and 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 alkenyl having 2 to 5 carbon atoms An oxy group is preferable, an alkyl group of 1 to 5 carbon atoms or an alkenyl group of 2 to 5 carbon atoms is more preferable, an alkyl group of 2 to 5 carbon atoms or an alkenyl group of 2 to 3 carbon atoms is more preferable And an alkenyl group (propenyl group) having 3 carbon atoms is particularly preferable.

Moreover, when the ring structure to which it couple | bonds is a phenyl group (aromatic), a linear C1-C5 alkyl group, a linear C1-C4 alkoxy group, and a C4-C5 alkenyl When a group is preferable and the ring structure to which it couple | bonds is saturated ring structures, such as cyclohexane, a pyran, and dioxane, a linear C1-C5 alkyl group and a linear C1-C4 alkoxy The group and the linear alkenyl group of 2 to 5 carbon atoms are preferable. In order to stabilize the nematic phase, the sum of carbon atoms and, if present, oxygen atoms is preferably 5 or less, and preferably linear.

As an alkenyl group, it is preferable that it is chosen from the group represented by either of formula (R1)-a formula (R5) (The black dot in each formula represents a carbon atom in a ring structure.).

Preferably, they are an alkyl group of 1 to 5 carbon atoms and an alkoxy group of 1 to 5 carbon atoms, and are methyl group, ethyl group, propyl group, methoxy group, ethoxy group and propoxy group.

A ^N11 and A ^N12 are each preferably aromatic when it is desired to increase Δn independently, and in order to improve the response speed, it is preferable to be aliphatic, and a trans-1,4-cyclohexylene group, 1,4 -Phenylene group, 2-fluoro-1,4-phenylene group, 3-fluoro-1,4-phenylene group, 3,5-difluoro-1,4-phenylene group, 2,3-difluoro -1,4-phenylene group, 1,4-cyclohexenylene group, 1,4-bicyclo [2.2.2] octylene group, piperidine-1,4-diyl group, naphthalene-2,6-diyl group , Decahydronaphthalene-2,6-diyl group or 1,2,3,4-tetrahydronaphthalene-2,6-diyl group is preferable, and the following structure is more preferable,

A trans-1,4-cyclohexylene group, a 1,4-cyclohexenylene group, or a 1,4-phenylene group is preferable, and a trans-1,4-cyclohexylene group or a 1,4-phenylene group is more preferable. Do.

Z ^N11 and Z ^N12 each independently represent -CH ₂ O-, -CF ₂ O-, -CH ₂ CH _2- , -CF ₂ CF ₂ -or preferably represent a single bond, and -CH ₂ O-,- CH ₂ CH ₂ -or a single bond is more preferred, and -CH ₂ O- or a single bond is particularly preferred.

n ^N11 + n ^N12 is preferably 1 or 2, n ^N11 is 1, n ^N12 is 0, n ^N11 is 2, n ^N12 is 0, n ^N11 is 1 and n ^N12 is 1, n ^A combination where ^N11 is 2 and n ^N12 is 1 is preferred.

However, the compound represented by general formula (N-1d) is excluded.

The lower limit of the preferable content of the compound represented by the general formula (N-1) to the total amount of the composition of the present invention is 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, 80%. The upper limit of preferable content is 95%, 85%, 75%, 65%, 55%, 45%, 35%, 25%, and 20%.

The lower limit of the preferable content of the sum total of the compound represented by general formula (N-1d) and the compound represented by general formula (N-1) with respect to the total amount of the composition of the present invention is 1%, 10%, 20% 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, 80%. The upper limit of preferable content is 95%, 85%, 75%, 65%, 55%, 45%, 35%, 25%, and 20%.

When the viscosity of the composition of this invention is kept low and a composition with a quick response speed is needed, it is preferable that said lower limit is low and an upper limit is low. Moreover, when _Tni of the composition of this invention is kept high and a composition with good temperature stability is needed, it is preferable that said lower limit is low and an upper limit is low. In addition, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the lower limit is high and the upper limit is high.

As a compound represented by general formula (N-1), the compound group represented by the following general formula (N-1a)-(N-1g) is mentioned.

(In the formulas, R ^N11 and R ^N12 represents a R ^N11 and the same meaning as R ^N12 in the formula (N-1), n ^Na11 represents 0 or 1, n ^Nb11 represents 1 or 2, n ^Nc11 represents 0 or 1, n ^Ne11 represents 1 or 2, n ^Nf11 represents 1 or 2, n ^Ng11 represents 1 or 2, and A ^Ne11 represents a trans-1,4-cyclohexylene group or 1 , 4-phenylene group, A ^Ng11 represents a trans-1,4-cyclohexylene group, a 1,4-cyclohexenylene group or a 1,4-phenylene group, but at least one is 1,4-cyclohexane A ethylene group, Z ^{Ne 11} represents a single bond or ethylene, but at least one represents ethylene.)

More specifically, it is preferable that the compound represented by general formula (N-1) is a compound chosen from the group of compounds represented by general formula (N-1-1) (N-1-21).

The compound represented by general formula (N-1-1) is the following compound.

(In formula, R <^N111> and R <^N112> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N111 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably a propyl group, a pentyl group or a vinyl group. R ^N112 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 an ethoxy group or butoxy group is preferable.

Although the compound represented by general formula (N-1-1) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little less when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-1) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, 20%. , 23%, 25%, 27%, 30%, 33%, 35%. The upper limit of preferable content is 50%, 40%, 38%, 35%, 33%, 30%, 28%, 25%, 23% with respect to the total amount of the composition of this invention. , 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, 3%.

Moreover, it is preferable that the compound represented by general formula (N-1-1) is a compound chosen from the group of compounds represented by Formula (N-1-1.1)-a formula (N-1-1.23), and is a formula ( It is preferable that it is a compound represented by N-1-1.1)-(N-1-1.4), and the compound represented by a formula (N-1-1.1) and a formula (N-1-1.3) is preferable.

The compounds represented by the formulas (N-1-1.1) to (N-1-1.22) may be used alone or in combination, but a preferable content of these compounds alone or with respect to the total amount of the composition of the present invention. The lower limit of is 5%, 10%, 13%, 15%, 17%, 20%, 23%, 25%, 27%, 30%, 33%, 35% to be. The upper limit of preferable content is 50%, 40%, 38%, 35%, 33%, 30%, 28%, 25%, 23% with respect to the total amount of the composition of this invention. , 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, 3%.

The compound represented by general formula (N-1-2) is the following compound.

(In formula, R <^N121> and R <^N122> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N121 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and an ethyl group, propyl group, butyl group or pentyl group is preferable. R ^N122 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 a methyl group, propyl group, methoxy group, ethoxy group or propoxy group is preferable. .

Although the compound represented by general formula (N-1-2) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and when setting the content a little less when focusing on solubility at low temperatures, the effect is high when setting the content a little more when T _ni is important. The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-2) to the total amount of the composition of the present invention is 5%, 7%, 10%, 13%, 15%, 17%. , 20%, 23%, 25%, 27%, 30%, 33%, 35%, 37%, 40%, 42%. The upper limit of preferable content is 50%, 48%, 45%, 43%, 40%, 38%, 35%, 33%, 30% with respect to the total amount of the composition of this invention. , 28%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6%, 5%.

Moreover, it is preferable that the compound represented by general formula (N-1-2) is a compound chosen from the compound group represented by Formula (N-1-2.1)-a formula (N-1-2.22), and is a formula ( N-1-2.3) to formula (N-1-2.7), formula (N-1-2.10), formula (N-1-2.11), formula (N-1-2.13), and formula (N-1-2.20 It is preferable that it is a compound represented by the following formula, and in the case where emphasis is placed on improvement of Δε, the compound represented by formulas (N-1-2.3) to (N-1-2.7) is preferable, and an emphasis on improvement of T _ni is given. In this case, the compound represented by the formula (N-1-2.10), the formula (N-1-2.11) and the formula (N-1-2.13) is preferably used. It is preferable that it is a compound represented by 1-2.20).

The compounds represented by the formulas (N-1-2.1) to (N-1-2.22) may be used alone or in combination, but are preferably used alone or in combination with respect to the total amount of the composition of the present invention. The lower limit of the content is 5%, 10%, 13%, 15%, 17%, 20%, 23%, 25%, 27%, 30%, 33%, 35 %to be. The upper limit of preferable content is 50%, 40%, 38%, 35%, 33%, 30%, 28%, 25%, 23% with respect to the total amount of the composition of this invention. , 20%, 18%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, 3%.

The compound represented by general formula (N-1-3) is the following compound.

(In formula, R <^N131> and R <^N132> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N131 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, a propyl group or a butyl group. R ^N132 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 3 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and preferably a 1-propenyl group, an ethoxy group, a propoxy group or a butoxy group Do.

Although the compound represented by general formula (N-1-3) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-3) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

Moreover, it is preferable that the compound represented by general formula (N-1-3) is a compound chosen from the group of compounds represented by Formula (N-1-3.1)-a formula (N-1-3.21), and is a formula ( It is preferable that it is a compound represented by N-1-3.1)-(N-1-3.7) and a formula (N-1-3.21), and is a formula (N-1-3.1), a formula (N-1-3.2), Preferred are the compounds represented by formulas (N-1-3.3), (N-1-3.4) and (N-1-3.6).

Compounds represented by formulas (N-1-3.1) to (N-1-3.4), (N-1-3.6) and (N-1-3.21) may be used alone or in combination. It is also possible, but a combination of formula (N-1-3.1) and formula (N-1-3.2), formula (N-1-3.3), formula (N-1-3.4) and formula (N-1-3.6) Preferred is a combination of two or three species selected from. The lower limit of the preferable content of these compounds alone or with respect to the total amount of the compositions of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

The compound represented by general formula (N-1-4) is the following compound.

(In formula, R <^N141> and R <^N142> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N141 and R ^N142 are each independently an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and a methyl group, a propyl group, an ethoxy group or a butok The timing is preferred.

Although the compound represented by general formula (N-1-4) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little less when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-4) to the total amount of the composition of the present invention is 3%, 5%, 7%, 10%, 13%, 15%. , 17%, and 20%. The upper limit of a preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of the present invention. , 11%, 10%, and 8%.

Moreover, it is preferable that the compound represented by general formula (N-1-4) is a compound chosen from the compound group represented by Formula (N-1-4.1)-a formula (N-1-4.14), and is a formula ( It is preferable that it is a compound represented by N-1-4.1)-(N-1-4.4), and is a formula (N-1-4.1), a formula (N-1-4.2), and a formula (N-1-4.4) The compound represented is preferable.

The compounds represented by the formulas (N-1-4.1) to (N-1-4.14) may be used alone or in combination, but are preferably used alone or in combination with respect to the total amount of the composition of the present invention. The lower limit of is 3%, 5%, 7%, 10%, 13%, 15%, 17%, and 20%. The upper limit of a preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of the present invention. , 11%, 10%, and 8%.

The compound represented by general formula (N-1-5) is the following compound.

(In formula, R <^N151> and R <^N152> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N151 and R ^N152 are each independently an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and an ethyl group, propyl group or butyl group is preferable.

Although the compound represented by general formula (N-1-5) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and when setting the content a little less when focusing on solubility at low temperatures, the effect is high when setting the content a little more when T _ni is important. The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferred content of the compound represented by the formula (N-1-5) to the total amount of the composition of the present invention is 5%, 8%, 10%, 13%, 15%, 17%. , 20%. The upper limit of a preferable content is 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15% with respect to the total amount of the composition of the present invention. , 13%.

Moreover, it is preferable that the compound represented by general formula (N-1-5) is a compound chosen from the group of compounds represented by Formula (N-1-5.1)-a formula (N-1-5.6), and is a formula ( N-1-5.1), the compounds represented by the formula (N-1-5.2) and formula (N-1-5.4) are preferred.

Although the compounds represented by the formula (N-1-5.1), the formula (N-1-5.2) and the formula (N-1-5.4) can be used alone or in combination, The lower limit of the preferable content of these compounds alone or with respect to the total amount is 5%, 8%, 10%, 13%, 15%, 17%, and 20%. The upper limit of a preferable content is 35%, 33%, 30%, 28%, 25%, 23%, 20%, 18%, 15% with respect to the total amount of the composition of the present invention. , 13%.

The compound represented by general formula (N-1-12) is the following compound.

(In formula, R ^N1121 and R ^N1122 each independently represent the same meaning as R ^N11 and R ^N12 in General formula (N).)

R ^N1121 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, propyl group or butyl group. R ^N1122 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 an ethoxy group, propoxy group or butoxy group is preferable.

Although the compound represented by general formula (N-1-12) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-12) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

The compound represented by general formula (N-1-13) is the following compound.

(In formula, R <^N1131> and R <^N1132> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N1131 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, propyl group or butyl group. R ^N1132 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and an ethoxy group, propoxy group or butoxy group is preferable.

Although the compound represented by general formula (N-1-13) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferred content of the compound represented by the formula (N-1-13) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

The compound represented by general formula (N-1-14) is the following compound.

(In formula, R <^N1141> and R <^N1142> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N1141 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, propyl group or butyl group. R ^N1142 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and an ethoxy group, propoxy group or butoxy group is preferable.

Although the compound represented by general formula (N-1-14) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-14) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

The compound represented by general formula (N-1-15) is the following compound.

(In formula, R <^N1151> and R <^N1152> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N1151 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, propyl group or butyl group. R ^N1152 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and preferably an ethoxy group, propoxy group or butoxy group.

Although the compound represented by general formula (N-1-15) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-15) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

The compound represented by general formula (N-1-16) is the following compound.

(Wherein, R and R ^{N1161 N1162} are, each independently, represent the R ^N11 and R ^N12 as defined in the formula (N).)

R ^N1161 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, propyl group or butyl group. R ^N1162 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and preferably an ethoxy group, propoxy group or butoxy group.

Although the compound represented by general formula (N-1-16) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-16) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

The compound represented by general formula (N-1-17) is the following compound.

(In formula, R ^N1171 and R ^N1172 each independently represent the same meaning as R ^N11 and R ^N12 in General formula (N).)

R ^N1171 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably an ethyl group, propyl group or butyl group. R ^N1172 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and preferably an ethoxy group, propoxy group or butoxy group.

Although the compound represented by general formula (N-1-17) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-17) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

The compound represented by general formula (N-1-18) is the following compound.

(In formula, R < ^N1181 and R <^N1182> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N1181 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and preferably a methyl group, ethyl group, propyl group or butyl group. R ^N1182 is preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and preferably an ethoxy group, propoxy group or butoxy group.

Although the compound represented by general formula (N-1-18) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-18) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

Moreover, it is preferable that the compound represented by general formula (N-1-18) is a compound chosen from the compound group represented by Formula (N-1-18.1)-a formula (N-1-18.5), It is preferable that it is a compound represented by N-1-18.1) (N-1-11.3), and the compound represented by a formula (N-1-18.2) and a formula (N-1-18.3) is preferable.

The compound represented by general formula (N-1-20) is the following compound.

(In formula, R <^N1201> and R <^N1202> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N1201 and R ^N1202 are each independently preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and an ethyl group, propyl group or butyl group is preferable.

Although the compound represented by general formula (N-1-20) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferred content of the compound represented by the formula (N-1-20) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

The compound represented by general formula (N-1-21) is the following compound.

(In formula, R <^N1211> and R <^N1212> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N1211 and R ^N1212 are each independently preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and an ethyl group, propyl group or butyl group is preferable.

Although the compound represented by general formula (N-1-21) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-21) to the total amount of the composition of the present invention is 5%, 10%, 13%, 15%, 17%, and 20%. . The upper limit of preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of this invention. .

The compound represented by general formula (N-1-22) is the following compound.

(In formula, R < ^N1221 and R <^N1222> respectively independently represent the same meaning as R <^N11> and R <^N12> in general formula (N).)

R ^N1221 and R ^N1222 are each independently preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and an ethyl group, propyl group or butyl group is preferable.

Although the compound represented by general formula (N-1-22) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

It is preferable to set the content a little higher when focusing on the improvement of Δε, and setting the content a little more when focusing on solubility at low temperatures is more effective, and setting the content a little more when focusing on T _ni . The effect is high. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (N-1-21) to the total amount of the composition of the present invention is 1%, 5%, 10%, 13%, 15%, 17%. 20%. The upper limit of a preferable content is 35%, 30%, 28%, 25%, 23%, 20%, 18%, 15%, and 13% with respect to the total amount of the composition of the present invention. , 10% and 5%.

Moreover, it is preferable that the compound represented by general formula (N-1-22) is a compound chosen from the group of compounds represented by Formula (N-1-22.1)-a formula (N-1-22.12), and is a formula ( It is preferable that it is a compound represented by N-1-22.1)-(N-1-22.5), and the compound represented by formula (N-1-22.1)-(N-1-22.4) is preferable.

It is preferable that the liquid crystal composition of this invention contains 1 type, or 2 or more types of compounds represented by general formula (L). The compound represented by general formula (L) is a genetically almost neutral compound (the value of (DELTA) epsilon is -2-2).

However, the compound represented by general formula (i), general formula (ii), general formula (N-1d), and general formula (N-1) is excluded.

Although the compound represented by general formula (L) may be used independently, it can also be used in combination. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to desired performances, such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it uses suitably combining. There is one kind of compound to be used, for example as one embodiment of this invention. Or in another embodiment of this invention, it is two types, three types, four types, five types, six types, seven types, eight types, nine types, ten or more types.

In the composition of the present invention, the content of the compound represented by the general formula (L) is required for such performance as solubility at low temperatures, transition temperature, electrical reliability, birefringence, process suitability, dropping traces, firing, dielectric anisotropy, and the like. It is necessary to adjust accordingly.

The compound represented by General Formula (L) is a so-called Non-Polar compound in which Δε is near zero. For this reason, it is preferable that the number of polar groups, such as a halogen atom in a molecule | numerator, is two or less, It is preferable that it is one or less, In order to improve the solubility with another liquid crystal compound, one is preferable, and when paying attention to viscosity, It is preferable that it is not substituted.

The minimum with preferable content of the compound represented by general formula (L) with respect to the total amount of the composition of this invention is 1%, 10%, 20%, 30%, 40%, 50%, 55%. 60%, 65%, 70%, 75%, 80%. The upper limit of preferable content is 95%, 85%, 75%, 65%, 55%, 45%, 35%, and 25%.

Lower limit of preferable content of the compound represented by general formula (i), general formula (ii), general formula (N-1d), general formula (N-1), and general formula (L) with respect to the total amount of the composition of this invention. Is 1%, 10%, 20%, 30%, 40%, 50%, 55%, 60%, 65%, 70%, 75%, 80%. The upper limit of preferable content is 95%, 85%, 75%, 65%, 55%, 45%, 35%, and 25%.

When the viscosity of the composition of this invention is kept low and a composition with a quick response speed is needed, it is preferable that said lower limit is high and an upper limit is high. Moreover, when _Tni of the composition of this invention is kept high and the composition which is excellent in temperature stability is needed, it is preferable that said lower limit is high and an upper limit is high. Moreover, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the above lower limit is low and the upper limit is low.

When importance is placed on reliability, both R ^L1 and R ^L2 are preferably alkyl groups, and when it is important to reduce the volatility of the compound, it is preferably an alkoxy group, and at least one is an alkenyl group when emphasis is placed on viscosity reduction. It is preferable.

As for the halogen atom which exists in a molecule | numerator, 0, 1, 2 or 3 pieces are preferable, 0 or 1 is preferable, and 1 is preferable when placing compatibility with other liquid crystal molecules.

R ^L1 and R ^L2 are a linear alkyl group having 1 to 5 carbon atoms, alkoxy group having 1 to 4 carbon atoms, and 4 carbon atoms when the ring structure to which it is bonded is a phenyl group (aromatic). When the alkenyl group of -5 is preferable, and the ring structure to which it couple | bonds is saturated ring structure, such as cyclohexane, a pyran, and a dioxane, a linear C1-C5 alkyl group and a straight-chain carbon atom number The alkoxy group of 1-4 and a linear alkenyl group of 2-5 carbon atoms are preferable. In order to stabilize the nematic phase, the sum of carbon atoms and, if present, oxygen atoms is preferably 5 or less, and preferably linear.

As an alkenyl group, it is preferable that it is chosen from the group represented by either of formula (R1)-a formula (R5) (The black dot in each formula represents a carbon atom in a ring structure.).

When nL1 ^places importance on response speed, 0 is preferable, 2 or 3 is preferable in order to improve the upper limit temperature of a nematic phase, and 1 is preferable in order to balance these. Moreover, in order to satisfy the characteristic calculated | required as a composition, it is preferable to combine the compound of a different value.

When A ^L1 , A ^L2 and A ^L3 are required to increase Δn, they are preferably aromatic, and in order to improve the response speed, they are preferably aliphatic, and each independently a trans-1,4-cyclohexylene group, 1,4-phenylene group, 2-fluoro-1,4-phenylene group, 3-fluoro-1,4-phenylene group, 3,5-difluoro-1,4-phenylene group, 1,4- Cyclohexenylene group, 1,4-bicyclo [2.2.2] octylene group, piperidine-1,4-diyl group, naphthalene-2,6-diyl group, decahydronaphthalene-2,6-diyl group or It is preferable to represent the 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, and it is more preferable to show the following structure,

It is more preferable to represent a trans-1,4-cyclohexylene group or 1,4-phenylene group.

Z ^L1 and Z ^L2 are preferably single bonds when importance is placed on response speed.

It is preferable that the compound represented by general formula (L) has 0 or 1 halogen atom number in a molecule | numerator.

It is preferable that the compound represented by general formula (L) is a compound chosen from the compound group represented by general formula (L-1)-(L-7).

The compound represented by general formula (L-1) is the following compound.

(In formula, R <^L11> and R <^L12> respectively independently represent the same meaning as R <^L1> and R <^L2> in general formula (L).)

R ^L11 and R ^L12 are preferably a linear alkyl group having 1 to 5 carbon atoms, alkoxy group having 1 to 4 carbon atoms, and an alkenyl group having 2 to 5 carbon atoms.

Although the compound represented by general formula (L-1) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

The lower limit of preferable content is 1%, 2%, 3%, 5%, 7%, and 10% with respect to the total amount of the composition of this invention. The upper limit of preferable content is 40%, 35%, 33%, 30%, and 25% with respect to the total amount of the composition of this invention.

When the viscosity of the composition of this invention is kept low and a composition with a quick response speed is needed, it is preferable that said lower limit is high and an upper limit is high. Moreover, when _Tni of the composition of this invention is kept high and a composition with good temperature stability is needed, it is preferable that said lower limit is medium and upper limit is medium. Moreover, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the above lower limit is low and the upper limit is low. It is not preferable to increase an upper limit for the improvement of the viewing angle characteristic.

It is preferable that the compound represented by general formula (L-1) is a compound selected from the group of compounds represented by general formula (L-1-1).

(In formula, R <^L12> has the same meaning as the meaning in general formula (L-1).)

It is preferable that the compound represented by general formula (L-1-1) is a compound chosen from the compound group represented by Formula (L-1-1.1)-a formula (L-1-1.3), and is a formula (L- It is preferable that it is a compound represented by 1-1.2) or a formula (L-1-1.3), and it is especially preferable that it is a compound represented by a formula (L-1-1.3).

The lower limit of the preferable content of the compound represented by the formula (L-1-1.3) to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, and 10%. . The upper limit of preferable content is 20%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, and 3% with respect to the total amount of the composition of this invention. .

It is preferable that the compound represented by general formula (L-1) is a compound selected from the group of compounds represented by general formula (L-1-2).

(In formula, R <^L12> has the same meaning as the meaning in general formula (L-1).)

The lower limit of the preferable content of the compound represented by the formula (L-1-2) to the total amount of the composition of the present invention is 1%, 5%, 10%, 15%, 17%, 20%. , 23%, 25%, 27%, 30%, 35%. The upper limit of preferable content is 60%, 55%, 50%, 45%, 42%, 40%, 38%, 35%, 33% with respect to the total amount of the composition of this invention. , 30%.

Moreover, it is preferable that the compound represented by general formula (L-1-2) is a compound chosen from the compound group represented by Formula (L-1-2.1)-a formula (L-1-2.4), It is preferable that it is a compound represented by L-1-2.2)-a formula (L-1-2.4). In particular, the compound represented by the formula (L-1-2.2) is preferable because it particularly improves the response speed of the composition of the present invention. Further, when the obtained high T _ni than the response speed, it is preferred to use a compound represented by the formula (L-1-2.3) or the formula (L-1-2.4). It is not preferable to make content of the compound represented by Formula (L-1-2.3) and Formula (L-1-2.4) into 30% or more in order to improve the solubility in low temperature.

The lower limit of the preferable content of the compound represented by the formula (L-1-2.2) with respect to the total amount of the composition of the present invention is 10%, 15%, 18%, 20%, 23%, 25%. , 27%, 30%, 33%, 35%, 38%, 40%. The upper limit of preferable content is 60%, 55%, 50%, 45%, 43%, 40%, 38%, 35%, 32% with respect to the total amount of the composition of this invention. , 30%, 27%, 25%, and 22%.

The lower limit of the preferable content of the sum total of the compound represented by Formula (L-1-1.3) and the compound represented by Formula (L-1-2.2) with respect to the total amount of the composition of the present invention is 10%, is 15%, 20%, 25%, 27%, 30%, 35%, 40%. The upper limit of preferable content is 60%, 55%, 50%, 45%, 43%, 40%, 38%, 35%, 32% with respect to the total amount of the composition of this invention. , 30%, 27%, 25%, and 22%.

It is preferable that the compound represented by general formula (L-1) is a compound selected from the group of compounds represented by general formula (L-1-3).

(In the formula, R ^L13 and R ^L14 each independently represent an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms.)

R ^L13 and R ^L14 are preferably a linear alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and an alkenyl group having 2 to 5 carbon atoms.

The lower limit of the preferable content of the compound represented by the formula (L-1-3) to the total amount of the composition of the present invention is 1%, 5%, 10%, 13%, 15%, 17%. , 20%, 23%, 25%, 30%. The upper limit of preferable content is 60%, 55%, 50%, 45%, 40%, 37%, 35%, 33%, 30% with respect to the total amount of the composition of this invention. , 27%, 25%, 23%, 20%, 17%, 15%, 13%, 10%.

Moreover, it is preferable that the compound represented by general formula (L-1-3) is a compound chosen from the group of compounds represented by Formula (L-1-3.1)-a formula (L-1-3.12), and is a formula ( It is preferable that it is a compound represented by L-1-3.1), a formula (L-1-3.3), or a formula (L-1-3.4). In particular, the compound represented by the formula (L-1-3.1) is preferable because it particularly improves the response speed of the composition of the present invention. Further, when the obtained high T _ni than the response speed, of the formula (L-1-3.3), formula (L-1-3.4), formula (L-1-3.11) and formula (L-1-3.12) Preference is given to using compounds. The total content of the compound represented by formula (L-1-3.3), formula (L-1-3.4), formula (L-1-3.11) and formula (L-1-3.12) improves the solubility at low temperature. It is not preferable to make it 20% or more in order to do so.

The lower limit of the preferred content of the compound represented by the formula (L-1-3.1) to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, 10%. , 13%, 15%, 18%, 20%. The upper limit of preferable content is 20%, 17%, 15%, 13%, 10%, 8%, 7%, and 6% with respect to the total amount of the composition of this invention.

It is preferable that the compound represented by general formula (L-1) is a compound selected from the group of compounds represented by general formula (L-1-4) and / or (L-1-5).

(In the formula, R ^L15 and R ^L16 each independently represent an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms.)

R ^L15 and R ^L16 are preferably a linear alkyl group having 1 to 5 carbon atoms, a straight alkoxy group having 1 to 4 carbon atoms, and a linear alkenyl group having 2 to 5 carbon atoms.

The lower limit of the preferable content of the compound represented by the formula (L-1-4) to the total amount of the composition of the present invention is 1%, 5%, 10%, 13%, 15%, 17%. , 20%. The upper limit of preferable content is 25%, 23%, 20%, 17%, 15%, 13%, and 10% with respect to the total amount of the composition of this invention.

The lower limit of the preferable content of the compound represented by the formula (L-1-5) to the total amount of the composition of the present invention is 1%, 5%, 10%, 13%, 15%, 17%. , 20%. The upper limit of preferable content is 25%, 23%, 20%, 17%, 15%, 13%, and 10% with respect to the total amount of the composition of this invention.

In addition, the compound represented by general formula (L-1-4) and (L-1-5) is chosen from the compound group represented by Formula (L-1-4.1)-a formula (L-1-5.3). It is preferable that it is a compound, and it is preferable that it is a compound represented by a formula (L-1-4.2) or a formula (L-1-5.2).

The lower limit of the preferable content of the compound represented by the formula (L-1-4.2) to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, 10%. , 13%, 15%, 18%, 20%. The upper limit of preferable content is 20%, 17%, 15%, 13%, 10%, 8%, 7%, and 6% with respect to the total amount of the composition of this invention.

Formula (L-1-1.3), Formula (L-1-2.2), Formula (L-1-3.1), Formula (L-1-3.3), Formula (L-1-3.4), Formula (L-1 -3.11) and two or more compounds selected from the compounds represented by the formula (L-1-3.12) are preferably combined, and formulas (L-1-1.3), (L-1-2.2) and ( It is preferable to combine two or more compounds selected from the compounds represented by L-1-3.1), formula (L-1-3.3), formula (L-1-3.4) and formula (L-1-4.2), And the lower limit of the preferable content of the total content of these compounds is 1%, 2%, 3%, 5%, 7%, 10%, 13%, based on the total amount of the composition of the present invention. 15%, 18%, 20%, 23%, 25%, 27%, 30%, 33%, 35%, and the upper limit is 80% with respect to the total amount of the composition of the present invention. 70%, 60%, 50%, 45%, 40%, 37%, 35%, 33%, 30%, 28%, 25%, 23%, 20%. When the reliability of a composition is important, combining two or more compounds selected from the compounds represented by formula (L-1-3.1), formula (L-1-3.3) and formula (L-1-3.4) It is preferable to combine 2 or more types of compounds chosen from the compound represented by a formula (L-1-1.3) and a formula (L-1-2.2), when placing importance on the response speed of a composition.

It is preferable that the compound represented by general formula (L-1) is a compound selected from the group of compounds represented by general formula (L-1-6).

(In the formula, R ^L17 and R ^L18 each independently represent a methyl group or a hydrogen atom.)

The lower limit of the preferable content of the compound represented by the formula (L-1-6) to the total amount of the composition of the present invention is 1%, 5%, 10%, 15%, 17%, 20%. , 23%, 25%, 27%, 30%, 35%. The upper limit of preferable content is 60%, 55%, 50%, 45%, 42%, 40%, 38%, 35%, 33% with respect to the total amount of the composition of this invention. , 30%.

Moreover, it is preferable that the compound represented by general formula (L-1-6) is a compound chosen from the compound group represented by Formula (L-1-6.1)-a formula (L-1-6.3).

The compound represented by general formula (L-2) is the following compound.

(In formula, R <^L21> and R <^L22> respectively independently represent the same meaning as R <^L1> and R <^L2> in general formula (L).)

R ^L21 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and R ^L22 is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms or carbon atoms The alkoxy group of 1-4 is preferable.

Although the compound represented by general formula (L-1) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

In the case where emphasis is placed on solubility at low temperatures, the effect is high when the content is set a little more. On the contrary, when the response speed is important, the effect is high when the content is set a little smaller. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

The lower limit of the preferable content of the compound represented by the formula (L-2) to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, and 10%. The upper limit of preferable content is 20%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, and 3% with respect to the total amount of the composition of this invention. .

Moreover, it is preferable that the compound represented by general formula (L-2) is a compound chosen from the compound group represented by Formula (L-2.1)-a formula (L-2.6), and is a formula (L-2.1), a formula It is preferable that it is a compound represented by (L-2.3), a formula (L-2.4), and a formula (L-2.6).

The compound represented by general formula (L-3) is the following compound.

(In formula, R <^L31> and R <^L32> respectively independently represent the same meaning as R <^L1> and R <^L2> in general formula (L).)

R ^L31 and R ^L32 are each independently preferably an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Although the compound represented by general formula (L-3) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

The lower limit of the preferable content of the compound represented by the formula (L-3) to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, and 10%. The upper limit of preferable content is 20%, 15%, 13%, 10%, 8%, 7%, 6%, 5%, and 3% with respect to the total amount of the composition of this invention. .

In the case of obtaining a high birefringence, the effect is high when the content is set a little more. On the contrary, when the high T _ni is important, the effect is high when the content is set a little smaller. In addition, when improving dripping trace and baking characteristic, it is preferable to set the range of content to the middle.

Moreover, it is preferable that the compound represented by general formula (L-3) is a compound chosen from the group of compounds represented by a formula (L-3.3) or a formula (L-3.4).

The compound represented by general formula (L-4) is the following compound.

(In formula, R <^L41> and R <^L42> respectively independently represent the same meaning as R <^L1> and R <^L2> in general formula (L).)

R ^L41 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and R ^L42 is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms or carbon atoms 1-4 alkoxy groups are preferred.)

Although the compound represented by general formula (L-4) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

In the composition of the present invention, the content of the compound represented by the general formula (L-4) is required for solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping trace, baking, anisotropy of dielectric constant, and the like. It may need to be adjusted accordingly.

The lower limit of the preferable content of the compound represented by the formula (L-4) 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%, 40%. The upper limit of the preferable content of the compound represented by formula (L-4) with respect to the total amount of the compositions of the present invention is 50%, 40%, 35%, 30%, 20%, 15%, 10 %, 5%.

It is preferable that the compound represented by general formula (L-4) is a compound represented, for example by Formula (L-4.1)-Formula (L-4.3).

Depending on the required performance, such as solubility at low temperatures, transition temperature, electrical reliability, birefringence and the like, the compound represented by the formula (L-4.1) may be contained, and the compound represented by the formula (L-4.2) is contained. The compound may be used, and may contain both the compound represented by Formula (L-4.1) and the compound represented by Formula (L-4.2), and is represented by Formula (L-4.1)-Formula (L-4.3) You may include all of them. The lower limit of the preferable content of the compound represented by the formula (L-4.1) or the formula (L-4.2) with respect to the total amount of the composition of the present invention is 3%, 5%, 7%, 9%, 11% , 12%, 13%, 18%, 21%, and the preferred upper limit is 45%, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15%, 13%, 10%, 8%.

When it contains both the compound represented by Formula (L-4.1) and the compound represented by Formula (L-4.2), the lower limit of the preferable content of both compounds with respect to the total amount of the composition of this invention is 15%, 19%, 24%, 30%, and the preferred upper limit is 45%, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15% , 13%.

It is preferable that the compound represented by general formula (L-4) is a compound represented, for example by Formula (L-4.4)-a formula (L-4.6), and is a compound represented by Formula (L-4.4) desirable.

Depending on the required performance such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., the compound represented by the formula (L-4.4) may be contained, and the compound represented by the formula (L-4.5) is contained. It may be sufficient and may contain both the compound represented by Formula (L-4.4), and the compound represented by Formula (L-4.5).

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

When it contains both the compound represented by a formula (L-4.4) and the compound represented by a formula (L-4.5), the minimum of preferable content of both compounds with respect to the total amount of the composition of this invention is 15%, 19%, 24%, 30%, and the preferred upper limit is 45%, 40%, 35%, 30%, 25%, 23%, 20%, 18%, 15% , 13%.

It is preferable that the compound represented by general formula (L-4) is a compound represented by Formula (L-4.7)-a formula (L-4.10), and the compound represented by a formula (L-4.9) is especially preferable. .

The compound represented by general formula (L-5) is the following compound.

(In formula, R ^L51 and R ^L52 each independently represent the same meaning as R ^L1 and R ^L2 in General Formula (L).)

R ^L51 is preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and R ^L52 is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms or carbon atoms The alkoxy group of 1-4 is preferable.

Although the compound represented by general formula (L-5) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

In the composition of the present invention, the content of the compound represented by the general formula (L-5) is required for solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping trace, baking, anisotropy of dielectric constant, and the like. It may need to be adjusted accordingly.

The lower limit of the preferable content of the compound represented by the formula (L-5) 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%, 40%. The upper limit of the preferable content of the compound represented by the formula (L-5) with respect to the total amount of the compositions of the present invention is 50%, 40%, 35%, 30%, 20%, 15%, 10 %, 5%.

It is preferable that the compound represented by general formula (L-5) is a compound represented by a formula (L-5.1) or a formula (L-5.2), and it is especially preferable that it is a compound represented by a formula (L-5.1). Do.

The lower limit of preferable content of these compounds with respect to the total amount of the composition of this invention is 1%, 2%, 3%, 5%, and 7%. The upper limit of preferable content of these compounds is 20%, 15%, 13%, 10%, and 9%.

It is preferable that the compound represented by general formula (L-5) is a compound represented by a formula (L-5.3) or a formula (L-5.4).

The lower limit of preferable content of these compounds with respect to the total amount of the composition of this invention is 1%, 2%, 3%, 5%, and 7%. The upper limit of preferable content of these compounds is 20%, 15%, 13%, 10%, and 9%.

It is preferable that the compound represented by general formula (L-5) is a compound chosen from the compound group represented by Formula (L-5.5)-a formula (L-5.7), and it is especially represented by a formula (L-5.7) It is preferable that it is a compound.

The lower limit of preferable content of these compounds with respect to the total amount of the composition of this invention is 1%, 2%, 3%, 5%, and 7%. The upper limit of preferable content of these compounds is 20%, 15%, 13%, 10%, and 9%.

The compound represented by general formula (L-6) is the following compound.

(In formula, R <^L61> and R <^L62> respectively independently represent the same meaning as R <^L1> and R <^L2> in general formula (L), and X ^{< L61>} and X <^L62> respectively independently represent a hydrogen atom or a fluorine atom. )

R ^L61 and R ^L62 are each independently preferably an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, one of X ^L61 and X ^L62 being a fluorine atom and the other being a hydrogen atom desirable.

Although the compound represented by general formula (L-6) may be used independently, you may use it in combination of 2 or more compound. Although there is no restriction | limiting in particular in the kind of compound which can be combined, According to the performance required, such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, it uses suitably combining. The kind of compound to be used is one type, two types, three types, four types, and five or more types as one embodiment of this invention, for example.

The lower limit of the preferable content of the compound represented by the formula (L-6) 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%, 40%. The upper limit of the preferable content of the compound represented by the formula (L-6) to the total amount of the composition of the present invention is 50%, 40%, 35%, 30%, 20%, 15%, 10 %, 5%. When the emphasis is placed on increasing Δn, it is preferable to increase the content, and when the emphasis is placed on precipitation at low temperature, the content is preferably small.

It is preferable that the compound represented by general formula (L-6) is a compound represented by Formula (L-6.1)-a formula (L-6.9).

Although there is no restriction | limiting in particular in the kind of compound which can be combined, It is preferable to contain 1 type-3 types from these compounds, and it is more preferable to contain 1 type-4 types. Moreover, since wide molecular weight distribution of the compound to select is effective for solubility, for example, it is one type from the compound represented by Formula (L-6.1) or (L-6.2), Formula (L-6.4) or (L -6.5 from one type of compound represented by formula (L-6.6) or a compound represented by formula (L-6.7), and 1 type from compound represented by formula (L-6.8) or (L-6.9) It is preferable to select a kind of compound and to combine them suitably. Especially, it is preferable to include the compound represented by Formula (L-6.1), Formula (L-6.3), Formula (L-6.4), Formula (L-6.6), and Formula (L-6.9).

Moreover, it is preferable that the compound represented by general formula (L-6) is a compound represented, for example by Formula (L-6.10)-a formula (L-6.17), Especially, it is represented by Formula (L-6.11) It is preferable that it is a compound shown.

The lower limit of preferable content of these compounds with respect to the total amount of the composition of this invention is 1%, 2%, 3%, 5%, and 7%. The upper limit of preferable content of these compounds is 20%, 15%, 13%, 10%, and 9%.

The compound represented by general formula (L-7) is the following compound.

(In the formulas, R ^L71 and R ^L72 each independently represent the same meaning as R ^L1 and R ^L2 in General Formula (L), and A ^L71 and A ^L72 each independently represent A in General Formula (L). ^{Although the} same meaning as ^L2 and A ^L3 is shown, the hydrogen atoms on A ^L71 and A ^L72 may be each independently substituted by a fluorine atom, and Z ^L71 represents the same meaning as Z ^L2 in General Formula (L). , X ^L71 and X ^L72 each independently represent a fluorine atom or a hydrogen atom.)

In formula, R ^L71 and R ^L72 are each independently an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and A ^L71 and A ^L72 are each independently Independently, a 1,4-cyclohexylene group or a 1,4-phenylene group is preferable, and the hydrogen atoms on A ^L71 and A ^L72 may be each independently substituted by a fluorine atom, and Z ^L71 is a single bond or COO— A single bond is preferable, and X ^L71 and X ^L72 are preferably hydrogen atoms.

Although there is no restriction | limiting in particular in the kind of compound which can be combined, It mixes according to required performance, such as solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. The kind of compound to be used is one type, two types, three types, and four types as one embodiment of this invention, for example.

In the composition of the present invention, the content of the compound represented by the general formula (L-7) is required for solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping trace, baking, anisotropy of dielectric constant, and the like. It may need to be adjusted accordingly.

The lower limit of the preferable content of the compound represented by the formula (L-7) to the total amount of the composition of the present invention is 1%, 2%, 3%, 5%, 7%, 10%, 14 %, 16%, 20%. The upper limit of the preferable content of the compound represented by the formula (L-7) with respect to the total amount of the compositions of the present invention is 30%, 25%, 23%, 20%, 18%, 15%, 10 %, 5%.

When the composition of this invention requires the high T _ni embodiment, it is preferable to make a little more content of the compound represented by Formula (L-7), and when a low viscosity embodiment is required, a little less content It is desirable to.

Moreover, it is preferable that the compound represented by general formula (L-7) is a compound represented by Formula (L-7.1)-a formula (L-7.4), and it is preferable that it is a compound represented by Formula (L-7.2). Do.

Moreover, it is preferable that the compound represented by general formula (L-7) is a compound represented by Formula (L-7.11)-a formula (L-7.13), and it is preferable that it is a compound represented by Formula (L-7.11). Do.

In addition, the compound represented by general formula (L-7) is a compound represented by Formula (L-7.21)-a formula (L-7.23). It is preferable that it is a compound represented by a formula (L-7.21).

Moreover, it is preferable that the compound represented by general formula (L-7) is a compound represented by Formula (L-7.31)-a formula (L-7.34), and is a formula (L-7.31) or / and a formula (L- It is preferable that it is a compound represented by 7.32).

Moreover, it is preferable that the compound represented by general formula (L-7) is a compound represented by Formula (L-7.41)-a formula (L-7.44), and is a formula (L-7.41) or / and a formula (L- It is preferable that it is a compound represented by 7.42).

Moreover, it is preferable that the compound represented by general formula (L-7) is a compound represented by Formula (L-7.51)-a formula (L-7.53).

Preferable content of the sum total of the compound represented by general formula (i), general formula (ii), general formula (N-1d), general formula (N-1), and general formula (L) with respect to the total amount of the composition of this invention. The lower limit of is 80%, 85%, 88%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% , 100%. The upper limit of preferable content is 100%, 99%, 98%, and 95%.

Conventional compositions have been used in combination of a compound having a bicyclohexane skeleton represented by the formula (L-1-3.1) and a compound having a biphenyl skeleton represented by the formula (ii-3). Silver is a general formula using the compound represented by general formula (i) and (ii), and using the compound represented by general formula (N-1d), general formula (N-1), and general formula (L). A predetermined amount of the compound represented by the formulas (i) and (ii), respectively, and a so-called neutral compound (the compound represented by the general formula (i), the compound represented by the general formula (ii) and the general formula (L) The present invention is solved by adjusting the content of the compound represented by the general formulas (i) and (ii) in the compound represented by).

Compound represented by general formula (i) and (ii) in a neutral compound (compound represented by general formula (i), a compound represented by general formula (ii), and a compound represented by general formula (L)) The lower limit of the preferable content of the sum is 20%, 25%, 30%, 35%, 38%, 40%, 42%, and 45%. Preferred upper limits are 70%, 65%, 63%, 60%, 58%, 56% and 55%.

The lower limit of the preferable content of the sum total of the compound represented by general formula (i), general formula (ii), and general formula (L-4.4) with respect to the total amount of the composition of this invention is 8%, 10%, and 13% 15% and 20%. The upper limit of preferable content is 50%, 45%, 43%, 40%, 38%, and 35%. General formula (i), general formula (ii), and general in neutral compound (a compound represented by general formula (i), a compound represented by general formula (ii), and a compound represented by general formula (L)) The lower limit of the preferable content of the sum total of a compound represented by a formula (L-4.4) is 20%, 25%, 30%, 35%, 38%, 40%, 42%, and 45%. . Preferred upper limits are 70%, 65%, 63%, 60%, 58%, 56% and 55%.

In this composition, it is preferable to combine the compound represented by general formula (i), (ii), (L-1), (L-4), and (L-5) as a combination of neutral compounds.

General formula (i), (ii), and (L- in a neutral compound (compound represented by general formula (i), a compound represented by general formula (ii), and a compound represented by general formula (L)) The lower limit of the preferable content of the sum total of the compound represented by 5) is 20%, 25%, 30%, 35%, 38%, 40%, 42%, and 45%. Preferred upper limits are 70%, 65%, 63%, 60%, 58%, 56% and 55%.

The upper limit of the preferable content of the sum total of the compound which has an alkenyl group with respect to the total amount of the composition of this invention is 30%, 25%, 20%, 15%, 13%, 10%, 8%, It is preferably 5%, 3%, 2%, 1%, and substantially free. Including a compound having an alkenyl group is effective for improving the response speed, but from the viewpoint of reliability and wavelength dispersion of Δn, the content is preferably small.

The upper limit of the preferable content of the sum total of the compound which has an alkenyl group by the compound represented by general formula (N-1d) and the compound represented by general formula (N-1) with respect to the total amount of the composition of this invention is 20%, 18%, 15%, 13%, 10%, 8%, 5%, 3%, 2%, 1%, preferably substantially free. Including a compound having an alkenyl group is effective for improving the response speed, but from the viewpoint of reliability and wavelength dispersion of Δn, the content is preferably small.

It is preferable that the composition of this invention does not contain the compound which has a structure which oxygen atoms, such as a peracid (-CO-OO-) structure, couple | bonded in the molecule | numerator.

When importance is placed on the reliability and long-term stability of the composition, the content of the compound having a carbonyl group is preferably 5% or less, more preferably 3% or less, and 1% or less based on the total mass of the composition. It is more preferable, and it is most preferable not to contain substantially.

When importance is placed on stability by UV irradiation, the content of the compound in which the chlorine atom is substituted is preferably 15% or less, preferably 10% or less, and 8% or less based on the total mass of the composition. It is preferable to set it as 5% or less, It is preferable to set it as 3% or less, It is further more preferable not to contain substantially.

It is preferable to increase the content of the compound having all six-membered ring structures in the molecule, and the content of the compound having all six-membered ring structures in the molecule is preferably 80% or more relative to the total mass of the composition, and 90% It is more preferable to set it as the above, It is more preferable to set it as 95% or more, It is most preferable to comprise a composition only with the compound whose substantially ring structure in a molecule | numerator is all 6 membered rings.

In order to improve the stability of a composition, it is preferable to increase content of the compound whose side chain is an alkyl group and an alkoxy group, and it is preferable to make content of the compound whose side chain is an alkyl group and an alkoxy group into 85% or more with respect to the total mass of the said composition, It is preferable to set it as 87% or more, It is preferable to set it as 90% or more, It is preferable to set it as 93% or more, It is preferable to set it as 95% or more, It is preferable to set it as 98% or more, It is substantially 100% More preferably. Substantially 100% means 100% excluding polymeric compounds, stabilizers and additionally incorporated impurities.

In order to suppress deterioration by oxidation of the composition, it is preferable to reduce the content of the compound having a cyclohexenylene group as the ring structure, and the content of the compound having a cyclohexenylene group is 10% or less with respect to the total mass of the composition. It is preferable to set it as 8% or less, It is more preferable to set it as 5% or less, It is preferable to set it as 3% or less, It is further more preferable not to contain substantially.

When emphasis is placed on improving the viscosity and improving the T _ni , it is preferable to reduce the content of the compound having a 2-methylbenzene-1,4-diyl group in the molecule in which the hydrogen atom may be substituted with halogen, and the aforementioned 2-methyl The content of the compound having a benzene-1,4-diyl group in the molecule is preferably 10% or less, more preferably 8% or less, more preferably 5% or less based on the total mass of the composition. It is preferable to set it as 3% or less, and it is more preferable not to contain substantially.

In the present application, the term "substantially free" means that the content is not contained except that it is unintentionally contained.

When the compound contained in the composition of 1st Embodiment of this invention has an alkenyl group as a side chain, when the said alkenyl group is couple | bonded with cyclohexane, it is preferable that the number of carbon atoms of the said alkenyl group is 2-5. When the alkenyl group is bonded to benzene, the number of carbon atoms of the alkenyl group is preferably 4 to 5, and it is preferable that the unsaturated bond and the benzene of the alkenyl group are not directly bonded.

As for the average elastic constant (K _AVG ) of the liquid crystal composition used for this invention, 10-25 are preferable, As a lower limit, 10 is preferable, 10.5 is preferable, 11 is preferable, 11.5 is preferable, and 12 is preferable. 12.3 is preferred, 12.5 is preferred, 12.8 is preferred, 13 is preferred, 13.3 is preferred, 13.5 is preferred, 13.8 is preferred, 14 is preferred, 14.3 is preferred, and 14.5 is preferred. 14.8 is preferred, 15 is preferred, 15.3 is preferred, 15.5 is preferred, 15.8 is preferred, 16 is preferred, 16.3 is preferred, 16.5 is preferred, 16.8 is preferred, and 17 is preferred. 17.3 is preferable, 17.5 is preferable, 17.8 is preferable, 18 is preferable, as the upper limit, 25 is preferable, 24.5 is preferable, 24 is preferable, 23.5 is preferable, 23 is preferable 22.8 bar 22.5 is preferable, 22.3 is preferable, 22 is preferable, 21.8 is preferable, 21.5 is preferable, 21.3 is preferable, 21 is preferable, 20.8 is preferable, 20.5 is preferable and 20.3 is Preferred, 20 is preferred, 19.8 is preferred, 19.5 is preferred, 19.3 is preferred, 19 is preferred, 18.8 is preferred, 18.5 is preferred, 18.3 is preferred, 18 is preferred, and 17.8 is preferred. Preferably, 17.5 is preferable, 17.3 is preferable, and 17 is preferable. In the case of focusing on reducing power consumption, it is effective to suppress the light amount of the backlight, and it is preferable that the liquid crystal display element improves the light transmittance, and in order to do so, it is preferable to set the value of K _AVG slightly lower. If emphasis is placed on improving the response speed, it is preferable to set the value of K _AVG slightly higher.

The composition of this invention can contain a polymeric compound, in order to manufacture liquid crystal display elements, such as PS mode, a transverse electric field type PSA mode, or a transverse electric field type PSVA mode. As a polymeric compound which can be used, the photopolymerizable monomer by which superposition | polymerization advances by energy rays, such as light, etc. are mentioned, As a structure, For example, the liquid crystal in which two or more 6-membered rings, such as a biphenyl derivative and terphenyl derivative, were connected The polymeric compound which has a skeleton, etc. are mentioned. More specifically, general formula (XX)

(Wherein, X ²⁰¹ and X ²⁰² each independently represent a hydrogen atom or a methyl group,

Sp ²⁰¹ and Sp ²⁰² each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms, or -O- (CH ₂ ) _s- (wherein s represents an integer of 2 to 7 and the oxygen atom is an aromatic group). Is bound to a ring).

Z ²⁰¹ is -OCH _2- , -CH ₂ O-, -COO-, -OCO-, -CF ₂ O-, -OCF _2- , -CH ₂ CH _2- , -CF ₂ CF _2- , -CH = CH-COO-, -CH = CH-OCO-, -COO-CH = CH-, -OCO-CH = CH-, -COO-CH ₂ CH _2- , -OCO-CH ₂ CH _2- , -CH ₂ CH ₂ -COO-, -CH ₂ CH ₂ -OCO-, -COO-CH _2- , -OCO-CH _2- , -CH ₂ -COO-, -CH ₂ -OCO-, -CY ¹ = CY ^2- (Wherein, Y ¹ and Y ² each independently represent a fluorine atom or a hydrogen atom), -C≡C- or a single bond,

M ²⁰¹ represents a 1,4-phenylene group, a trans-1,4-cyclohexylene group, or a single bond, and all of the 1,4-phenylene groups in the formula have an arbitrary hydrogen atom of a fluorine atom or an alkyl group having 1 to 3 carbon atoms. And / or may be substituted by a C1-C2 alkoxy group.) The bifunctional monomer represented by () is preferable.

X ²⁰¹ and X ²⁰² are both preferably diacrylate derivatives each representing a hydrogen atom or dimethacrylate derivatives all having a methyl group, and compounds in which one represents a hydrogen atom and the other represents a methyl group are also preferable. The polymerization rate of these compounds is the fastest diacrylate derivative, the slowest dimethacrylate derivative, the asymmetric compound in the middle, and the preferred embodiment can be used according to the use thereof. In a PSA display element, a dimethacrylate derivative is especially preferable.

Sp ²⁰¹ and Sp ²⁰² each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms, or -O- (CH ₂ ) _s- , but in the PSA display device, at least one of them is preferably a single bond. Preferred is an embodiment in which all of the compounds exhibit a single bond or one represents a single bond and the other represents an alkylene group having 1 to 8 carbon atoms or -O- (CH ₂ ) _s- . In this case, the alkyl group of 1-4 is preferable, and 1-4 are preferable for s.

Z ²⁰¹ _{is, -OCH 2 -, -CH 2 O-} , -COO-, -OCO-, -CF 2 O-, -OCF 2 -, -CH 2 CH 2 -, -CF 2 CF 2 - or a single bond This is preferable, -COO-, -OCO- or a single bond is more preferable, and a single bond is especially preferable.

M ²⁰¹ represents a 1,4-phenylene group, a trans-1,4-cyclohexylene group or a single bond in which any hydrogen atom may be substituted with a fluorine atom, but a 1,4-phenylene group or a single bond is preferable. Do. When C represents a ring structure other than a single bond, Z ²⁰¹ is also preferably a linker other than a single bond, and when M ²⁰¹ is a single bond, Z ²⁰¹ is preferably a single bond.

From this point, in general formula (XX), the ring structure between Sp ²⁰¹ and Sp ²⁰² specifically has a structure described below.

In the formula (XX), M ²⁰¹ represents a single bond, in the case where the cyclic structure formed by two rings, preferably represents the following formula (XXa-1) ~ formula (XXa-7), and More preferably, the formulas (XXa-1) to (XXa-3) and (XXa-6) to (XXa-7) are represented, and the formulas (XXa-1), (XXa-2) or ( Particular preference is given to XXa-6).

(Where both ends are bound to Sp ²⁰¹ or Sp ^202. )

Since the orientation regulating force after superposition | polymerization is optimal for a PSA type liquid crystal display element, and a favorable orientation state can be obtained, the polymeric compound containing these frame | skeleton is suppressed, or a display nonuniformity is not generated at all.

As mentioned above, as a polymerizable monomer, general formula (XX-1)-general formula (XX-4) are especially preferable, and general formula (XX-2) is especially preferable.

(In the above formula, the benzene is substituted by an alkoxy group of a fluorine atom, an alkyl group having 1 to 3 carbon atoms and / or a carbon number of 1-2, Sp ²⁰ represents an alkylene group of carbon atoms 2-5.)

In the case where a monomer is added to the composition of the present invention, the polymerization proceeds even when no polymerization initiator is present, but may contain a polymerization initiator in order to promote the polymerization. Examples of the polymerization initiator include benzoin ethers, benzophenones, acetophenones, benzyl ketals, acyl phosphine oxides, and the like.

The composition in this invention can also contain the compound represented by general formula (Q).

(Wherein, R ^Q represents a straight or branched chain alkyl group having 1 to 22 carbon atoms, and one or two or more CH ₂ groups in the alkyl group are each selected from -O-, -CH = so that the oxygen atoms are not directly adjacent to each other). CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF ₂ O-, -OCF ₂ -may be substituted, and the hydrogen atom in R ^Q is 4-hydroxy-3, It may be substituted by a 5-di-t-butylphenyl group and M ^Q represents a trans-1,4-cyclohexylene group, a 1,4-phenylene group or a single bond, but trans-1,4-cyclohexylene One of the groups or two non-adjacent -CH ₂ -may be substituted with -O-.)

R ^Q represents a linear or branched alkyl group having 1 to 22 carbon atoms, and one or two or more CH ₂ groups in the alkyl group are each selected from -O-, -CH = CH-,-so that the oxygen atoms are not directly adjacent to each other. CO-, -OCO-, -COO-, -C≡C-, -CF ₂ O-, -OCF ₂ -may be substituted, but a linear alkyl group having 1 to 10 carbon atoms, a linear alkoxy group, 1 CH ₂ A straight chain alkyl group in which the group is substituted with -OCO- or -COO-, a branched alkyl group, a branched alkoxy group, or a branched alkyl group in which one CH ₂ group is substituted with -OCO- or -COO- is preferable, and has 1-20 carbon atoms. Phosphorus linear alkyl group, straight chain alkyl group in which one CH ₂ group is substituted with -OCO- or -COO-, branched chain alkyl group, branched alkoxy group, and branched chain alkyl group in which one CH ₂ group is substituted with -OCO- or -COO- desirable. M ^Q represents a trans-1,4-cyclohexylene group, a 1,4-phenylene group or a single bond, but a trans-1,4-cyclohexylene group or a 1,4-phenylene group is preferable.

As for the compound represented by general formula (Q), the compound represented by the following general formula (Q-a)-general formula (Q-d) more specifically is preferable.

In the formula, R ^Q1 is preferably a linear or branched alkyl group having 1 to 10 carbon atoms, R ^Q2 is preferably a straight or branched alkyl group having 1 to 20 carbon atoms, and R ^Q3 is 1 carbon atom. A straight chain alkyl group, branched chain alkyl group, straight chain alkoxy group or branched chain alkoxy group of ˜8 is preferable, and L ^Q is preferably a straight chain alkylene group or branched chain alkylene group having 1 to 8 carbon atoms. Among the compounds represented by General Formulas (Qa) to (Qd), compounds represented by General Formulas (Qc) and General Formula (Qd) are more preferable.

In the composition of this invention, it is preferable to contain 1 type or 2 types of the compound represented by general formula (Q), It is more preferable to contain 1 type-5 types, It is content that it is 0.001 to 1% It is preferable, 0.001-0.1% is more preferable, and 0.001-0.05% is especially preferable.

Moreover, as an antioxidant or light stabilizer which can be used for this invention, the compound specifically, represented by the following (III-1)-(III-38) is preferable.

(In formula, n represents the integer of 0-20.)

In the composition of this invention, it is preferable to contain 1 type (s) or 2 or more types of compounds chosen from the compound represented by General formula (Q) or general formula (III-1)-(III-38), and 1 type- It is more preferable to contain 5 types, It is preferable that the content is 0.001 to 1%, 0.001 to 0.1% is more preferable, 0.001 to 0.05% is especially preferable.

Generally, the various parameters calculated from the physical property value of a liquid crystal composition are used as a method of expressing the characteristic of a liquid crystal display element. They include γ ₁ / K ₃₃ which is a parameter that governs the response speed, K ₁₁ / K ₃₃ which is a parameter that governs the steepness of the electro-optic effect, and K ₃₃ / Δε which is a parameter that governs the driving voltage. The liquid crystal composition of the present invention achieves high speed response, low driving voltage, good low-temperature storage property, wide viewing angle, and high transmittance. Therefore, as for the parameter γ ₁ / K ₃₃ that governs the response speed, 10.0 mPa · s · pN ⁻¹ or less is preferable, 9.8 mPa · s · pN ⁻¹ or less is preferable, and 9.5 mPa · s · pN ⁻¹ or less It is preferable, 9.2 mPa * s * pN- ¹ or less are preferable, and 9.0 mPa * s * pN- ¹ or less are especially preferable. K ₁₁ / K _{33, which} is a parameter governing steepness of the electro-optic effect, is preferably 1.20 or less, preferably 1.15 or less, preferably 1.10 or less, preferably 1.07 or less, preferably 1.05 or less, and 1.03 or less Especially preferred. The parameter | K ₃₃ / Δε |, which governs the driving voltage, is preferably 6.0 pN or less, preferably 5.7 pN or less, preferably 5.5 pN or less, preferably 5.3 pN or less, particularly preferably 5.1 pN or less.

The composition containing the polymeric compound of this invention is provided with the liquid crystal aligning ability by superposing | polymerizing the polymeric compound contained in this by ultraviolet irradiation, and is used for the liquid crystal display element which controls the amount of transmitted light of light using birefringence of a composition. .

The liquid crystal display device using the composition of the present invention is useful in achieving both high speed response and suppression of display defects, and is particularly useful in active matrix drive liquid crystal display devices, and is useful in VA mode, PSVA mode, PSA mode, IPS mode or ECB mode. It can be applied to a liquid crystal display element.

Moreover, in the manufacturing process of the liquid crystal display element by ODF method, although the optimal liquid crystal injection amount needs to be dripped according to the size of a liquid crystal display element, the liquid crystal composition of this invention, for example, the dropping which arises at the time of liquid crystal dropping, It is possible to keep the yield of the liquid crystal display element high because it is less influenced by a sudden pressure change or impact in the apparatus and can continuously drop the liquid crystal stably for a long time. In particular, the small liquid crystal display element used in the smart phone which is popular in recent years is difficult to control the deviation from the optimum value within a certain range because the optimal amount of liquid crystal injection is small, but by using the liquid crystal composition of the present invention, Also in the liquid crystal display element, the discharge amount of the stable liquid crystal material can be realized.

EXAMPLE

Although an Example is given to the following and this invention is demonstrated to it in detail, this invention is not limited to these Examples. In addition, "%" in the composition of the following example and a comparative example means "mass%."

In the Example, the measured characteristic is as follows.

T _ni : Nematic phase-isotropic liquid phase transition temperature (° C)

Δn: refractive index anisotropy at 293K

Δε: Dielectric constant anisotropy at 293K

γ ₁ : Rotational viscosity at 293K (mPa · s)

K ₁₁ : Elastic constant (pN) of spreading at 293K

K ₃₃ : Elastic constant (pN) of bending at 293K

In addition, the following symbol is used about description of a compound in an Example.

<Ring structure>

<Side chain structure>

(Where n in the table is a natural number)

<Connection structure>

 (Where n in the table is a natural number)

<Examples 1-6>

As examples, LC-1 (Example 1), LC-2 (Example 2), LC-3 (Example 3), LC-4 (Example 4), LC-5 (Example 5) and LC The liquid crystal composition of -6 (Example 6) was prepared, and the physical property value was measured. The result of the structure of the liquid crystal composition and its physical property value was shown below.

LC-1 (Example 1), LC-2 (Example 2), LC-3 (Example 3), LC-4 (Example 4), LC-5 (Example 5) and LC-6 (Example Example 6) shows that the parameter γ ₁ / K ₃₃ , which governs the response speed, is sufficiently small, and K ₁₁ / K _{33, which} is the parameter that governs the steepness of the electro-optic effect, is sufficiently small and | K, which is the parameter that governs the driving voltage. _{It was found that 33} / Δε | was a sufficiently low liquid crystal composition. Moreover, it turned out that wavelength dispersion of (DELTA) n is also small enough.

Next, the vertical alignment (VA) liquid crystal display element was obtained by inject | pouring these liquid crystal compositions into the cell with ITO which apply | coated the polyimide aligning film which induces a homeotropic orientation in a cell gap of 3.0 micrometers, respectively, by the vacuum injection method. It was confirmed that these VA liquid crystal display elements exhibit high speed response, low drive voltage, good low-temperature storage property, wide viewing angle, and high transmittance.

As mentioned above, it turned out that the liquid crystal composition of this invention is an excellent liquid crystal composition which can satisfy both high speed response, low drive voltage, favorable low-temperature storage property, wide viewing angle, and high transmittance | permeability.

<Comparative Examples 1-7>

As a comparative example, LC-A (Comparative Example 1), LC-B (Comparative Example 2), LC-C (Comparative Example 3), LC-D (Comparative Example 4), LC-E (Comparative Example 5), LC The liquid crystal composition of -F (comparative example 6) and LC-G (comparative example 7) was prepared, and the physical-property value was measured. The structure and the physical property value of the liquid crystal composition were shown below.

LC-A (Comparative Example 1), LC-B (Comparative Example 2), LC-C (Comparative Example 3), LC-D (Comparative Example 4), LC-E (Comparative Example 5), LC-F (Comparative Example 6) and LC-G (Comparative Example 7) are γ ₁ / K ₃₃ , a parameter governing response speed, K ₁₁ / K ₃₃ , a parameter governing the steepness of the electro-optic effect, compared with Examples. It was found that either one of the | K ₃₃ / Δε |, which governs the voltage, or the wavelength dispersion of Δn, or a plurality thereof is inferior.

Next, the vertical alignment (VA) liquid crystal display element was obtained by inject | pouring these liquid crystal compositions into the cell with ITO which apply | coated the polyimide aligning film which induces a homeotropic orientation in a cell gap of 3.0 micrometers, respectively, by the vacuum injection method. The result of having evaluated the electro-optical characteristic of the obtained vertical alignment (VA) liquid crystal display element is shown below. (Circle) in the following table showed the thing more than equivalent in performance compared with the liquid crystal display element obtained in the Example, and it shows that it was confirmed that it was significantly inferior compared with the liquid crystal display element obtained in the Example.

It was confirmed that these VA liquid crystal display elements were inferior to any of the response speed, the driving voltage, the low temperature storage property, the viewing angle, the transmittance, or a plurality thereof compared with the display elements created in the examples.

<Example 7-Example 24>

The polymerizable compound represented by XX-2, XX-2-F and XX-2-O1 was added as a polymeric compound with respect to the prepared liquid crystal composition LC-1-LC-6, and a polymeric compound containing liquid crystal composition MLC- 1-MLC-18 (Examples 7-24) were prepared.

The structure of the obtained polymeric compound containing liquid crystal composition is shown below.

The vertically-aligned (VA) liquid crystal display element was obtained by inject | pouring these polymeric compound containing liquid crystal compositions into the cell with ITO which apply | coated the polyimide aligning film which induces a homeotropic alignment in a cell gap of 3.0 micrometers, respectively. 10J and 10J were exposed by the high pressure mercury lamp of intensity | strength of 100mW / cm <^-2> (365nm), applying the square wave of 10V and 100Hz to the obtained VA liquid crystal display element. Moreover, the polymer stabilized vertical alignment (PSVA) liquid crystal display element was obtained by exposing 100J in the state which cut off the voltage. It was confirmed that these PSVA liquid crystal display elements show the same or more characteristic as the vertical alignment (VA) liquid crystal display element created in Examples 1-6.

As mentioned above, it turned out that the liquid crystal composition of this invention is an excellent liquid crystal composition which can satisfy both high speed response, low drive voltage, favorable low-temperature storage property, wide viewing angle, and high transmittance also in a PSVA display element.

Claims (4)

One or two or more compounds selected from compounds represented by general formula (i), One or two or more compounds selected from compounds represented by general formula (ii), represented by general formula (N-1d) One or two or more compounds selected from compounds, one or two or more compounds selected from compounds represented by formula (N-1), and a genetically neutral compound represented by formula (L). Containing one or two or more compounds,
The total content of the compound represented by the general formula (i) to the total amount of the composition is 3% or more, and the total content of the compound represented by the general formula (ii) to the total composition is 3% or more, and represented by the general formula (i) The liquid crystal composition whose negative dielectric anisotropy is negative in the sum total content of the compound represented by General formula (i) with respect to the compound, general formula (ii), and the total compound represented by general formula (L).

(In formula, R <^i1> and R <^ii1> respectively independently represent a C1-C5 alkyl group, R <^i2> and R <^ii2> represent a methyl group or a methoxy group each independently,
R ^Nd11 , R ^Nd12 , R ^N11 , R ^N12 , R ^L1 and R ^L2 each independently represent an alkyl group having 1 to 8 carbon atoms, and one or more adjacent two or more -CH ₂ -in the alkyl group are each May be independently substituted by -CH = CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-,
n ^Nd11 represents 1, 2 or 3, n ^N11 and n ^N12 represent 0, 1, 2 or 3, but n ^N11 + n ^N12 represents 1, 2 or 3, n ^L1 represents 0, 1, 2 Or 3,
A ^N11 , A ^N12 , A ^L1 , A ^L2 and A ^L3 are each independently
(a) 1,4-cyclohexylene group (one -CH ₂ -present in this group or two or more non-adjacent -CH ₂ -may be substituted with -O-) and
(b) 1,4-phenylene group (one -CH = present in this group or two or more non-adjacent -CH = may be substituted by -N =)
(c) naphthalene-2,6-diyl group, 1,2,3,4-tetrahydronaphthalene-2,6-diyl group or decahydronaphthalene-2,6-diyl group (naphthalene-2,6-diyl group Alternatively, one -CH = or two or more non-adjacent -CH = present in the 1,2,3,4-tetrahydronaphthalene-2,6-diyl group may be substituted with -N =.)
The group selected from the group which consists of these, said group (a), group (b), and group (c) may be respectively independently substituted by the cyano group, a fluorine atom, or a chlorine atom,
Z ^{N11, N12} Z, Z ^L1 and ^L2 are each a single bond Z _{independently, -CH 2 CH 2 -, -} (CH 2) 4 -, -OCH 2 -, -CH 2 O-, -COO-, -OCO -, -OCF _2- , -CF ₂ O-, -CH = NN = CH-, -CH = CH-, -CF = CF- or -C≡C-,
When a plurality of A ^N11 , A ^N12 , A ^L1 , A ^L2 and / or A ^L3 are present, they may be the same or different, and when a plurality of Z ^N11 , Z ^N12 , Z ^L1 and / or Z ^L2 are present Although they may be same or different, the compound represented by general formula (N-1) is represented by general formula (L) except the compound represented by general formula (N-1d), i), the compounds represented by general formula (ii), general formula (N-1d) and general formula (N-1) are excluded.) The method according to claim 1,
The liquid crystal composition which is negative in dielectric constant anisotropy which further contains a polymeric compound. The liquid crystal display element using the composition of Claim 1 or 2. The VA type liquid crystal display element using the liquid crystal composition of Claim 1 or 2.