TWI477586B - Liquid crystal composition, liquid crystal display element using same, and liquid crystal display using same - Google Patents

Description

Liquid crystal composition, liquid crystal display element, and liquid crystal display

The present invention relates to a nematic liquid crystal composition having a positive dielectric anisotropy (Δε) as a liquid crystal display material, a liquid crystal display element using the same, and a liquid crystal display .

Liquid crystal display elements have been used in various measuring machines, automotive panels, word processors, electronic notebooks, printers, computers, televisions, clocks, advertising displays, etc., including clocks and computers. The representative of the liquid crystal display method is TN (twisted nematic) type, STN (supper twisted nematic) type, and TFT (film transistor). Vertical alignment type or IPS (in-plane switching) type. The liquid crystal composition used for these liquid crystal display elements is stable to stimuli other than moisture, air, heat, light, etc., and is intended to display a liquid crystal phase at a temperature range as wide as possible centered on a room temperature. It is low viscosity and the driving voltage is low. Further, in order to make dielectric anisotropy (Δε), refractive index anisotropy (Δn), and the like the most suitable values for each display element, a liquid crystal composition is composed of several types to several tens of types of compounds.

A liquid crystal composition having a negative Δε is used in a vertical alignment (VA) type display, and Δε is used in a horizontal alignment type display such as a TN type, an STN type, or an IPS (in-plane switching type). Positive liquid crystal composition. Further, the liquid crystal composition having positive Δ ε is vertically aligned when no voltage is applied, and the driving mode displayed when a transverse electric field is applied is also reported, and the necessity of a liquid crystal composition having positive Δ ε is further improved. . On the other hand, in all driving methods, low-voltage driving, high-speed reaction, and a wide operating temperature range are being sought. That is, Δε is positive and the absolute value is large, the viscosity (η) is small, and the high nematic phase-isotropic liquid phase transition temperature (Tni) is required. Further, in order to set Δn × d of the product of Δn and the cell gap (d) to a predetermined value, it is necessary to adjust the Δn synergistic cell gap of the liquid crystal composition to an appropriate range. Further, when a liquid crystal display element is applied to a television or the like, since a high-speed reactivity is emphasized, a liquid crystal composition having a small rotational viscosity (γ ₁ ) is required.

For example, a compound represented by the following formula (A-1) or the following formula (A-2) in which a liquid crystal compound having a positive Δ ε is combined is disclosed as a composition of a liquid crystal composition having a high-speed reactivity. And a liquid crystal composition used as a compound represented by the following formula (B) in which Δε is a neutral liquid crystal compound. These liquid crystal compositions are characterized in that the liquid crystal compound having a positive liquid crystal compound of Δε has a structure of -CF ₂ O-, and the liquid crystal compound having a neutral Δε has an alkenyl group. These characteristics are well known in the field of liquid crystal compositions (see Patent Documents 1 to 4).

On the other hand, the use of the liquid crystal display element has been expanded, and the method of use and the method of manufacture have also seen great changes. In order to cope with such changes, it has been requested to optimize characteristics other than the basic physical property values known as the conventional ones. In other words, a liquid crystal display device using a liquid crystal composition is widely used in a VA type or an IPS type, and a display element having a size of 50 Å or more is put into practical use. With the increase in the size of the substrate, the method of injecting the liquid crystal composition into the substrate is also the mainstream of the injection method from the conventional vacuum injection method to the ODF (One Drop Fill) method. However, the problem that the dripping trace of the liquid crystal composition is dropped onto the substrate causes the display quality to be lowered has become a surface. Further, regarding the manufacturing process of the liquid crystal display element by the ODF method, it is necessary to drip the optimum liquid crystal injection amount in accordance with the size of the liquid crystal display element. When the deviation of the injection amount is greater than the optimum value, the balance of the refractive index or the driving electric field of the liquid crystal display element designed in advance may be collapsed, and display defects such as spot occurrence or poor contrast may occur. In particular, most of the small liquid crystal display elements used in smart phones that have recently been popular are controlled to a certain range from the optimum value in order to minimize the amount of liquid crystal injection that is most suitable. The inside itself is difficult. Therefore, in order to maintain a high yield of the liquid crystal display element, for example, it is possible to have a small effect on the sudden pressure change or impact in the dropping device generated when the liquid crystal is dropped, and it is possible to stably drop the liquid crystal over a long period of time. Is necessary.

In this way, the liquid crystal composition used in the active matrix driving liquid crystal display device driven by the TFT element or the like maintains the characteristics or performance sought by the liquid crystal display element as a high-speed reaction property, and has a high specific resistance which has been conventionally emphasized. In addition to the characteristics of the specific resistance value or the high voltage holding rate or the so-called external stimulus such as light or heat, development of a manufacturing method of the liquid crystal display element is being considered.

Prior technical literature Patent literature

Patent Document 1 JP-A-2008-037918

Patent Document 2, JP-A-2008-038018

Patent Document 3, JP-A-2010-275390

Patent Document 4 Special Opening 2011-052120

The problem to be solved by the present invention is to provide a liquid crystal phase having a wide temperature range with good yield, good viscosity, good low temperature solubility, high specific resistance or voltage retention, and stability to heat or light. A crystal display element having poor display quality such as image sticking or dripping marks and excellent display quality; a liquid crystal composition having a positive Δ ε; and a liquid crystal display element using the liquid crystal composition.

The inventors of the present invention have found that various liquid crystal compounds and various chemical substances are combined, and it has been found that the above-mentioned problems can be solved by combining specific liquid crystal compounds, and the present invention has been completed. That is, the first aspect of the present invention is the following liquid crystal composition, and the second aspect of the present invention is the following liquid crystal element, and the third aspect of the present invention is the following liquid crystal display.

[1] A composition containing any one or two or more of the compounds represented by the following formula (i) and containing any one or two of the compounds represented by the following formula (ii) More than one kind,

(wherein R ^11a and R ^21a are each independently represented by an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent-CH ₂ - groups are independently capable of undergoing -CH= CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-, the hydrogen atom in the alkyl group may be substituted by a fluorine atom or a chlorine atom, and m ²¹ represents 0 or 1, X ²¹ , X ²² , X ²³ and X ²⁴ are each independently represented by a hydrogen atom, a fluorine atom or a chlorine atom, and X ²⁵ represents a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, -CF ₃ or -OCF ₃ ).

[2] The liquid crystal composition according to the above [1], wherein X ²⁵ in the above formula (ii) is a fluorine atom.

[3] The liquid crystal composition according to the above [1] or [2], wherein m ²¹ in the above formula (ii) is 1.

[4] The liquid crystal composition according to any one of [1] to [3], wherein at least two of X ²¹ to X ²⁴ in the above formula (ii) are fluorine atoms.

[5] The liquid crystal composition according to any one of the above [1] to [4], which contains a compound represented by the following formula (L),

(wherein R ^L1 and R ^L2 are each independently represented by an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent -CH ₂ - may be independently substituted with -CH= CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-; OL represents 0, 1, 2 or 3, and B ^L1 , B ^L2 and B ^L3 are each independently represented as selected from the following group group consisting of: (a) 1,4- cycloalkyl extension (in this group present in one of the -CH ₂ - or of two or more adjacent -CH ₂ - may be substituted with -O- And (b) 1,4-phenylene (one of which is present in the group -CH= or two or more non-contiguous -CH= may be substituted with -N=), the above-mentioned group (a) And one or more of the hydrogen atoms in the group (b) are independently substituted by a cyano group, a fluorine atom or a chlorine atom; L ^L1 and L ^L2 are each independently represented as a single bond, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -OCF ₂ -, -CF ₂ O-, -CH=NN=CH-, - CH=CH-, -CF=CF- or -C≡C-; OL is 2 or 3 and L ^L2 has a plurality of cases, they may be the same or different, OL is 2 or 3 and B ^{L3 is} stored There are a plurality of cases, and they may be the same or different).

[6] The liquid crystal composition according to any one of the above [1] to [5], which contains a compound represented by the following formula (M),

(wherein, R ^M1 represents an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent -CH ₂ - may be independently substituted with -CH=CH-, -C≡ C-, -O-, -CO-, -COO- or -OCO-, PM represents 0, 1, 2, 3 or 4, and C ^M1 and C ^M2 are each independently a group representing a group selected from the group consisting of: d) 1,4- present (this group is a cycloalkyl extension of -CH ₂ - or of two or more adjacent -CH ₂ - may be substituted with -O- or -S-); and ( e) 1,4-phenylene (one of which is present in this group -CH= or two or more non-contiguous -CH= may be substituted with -N=), the above-mentioned group (d), group ( One or more than two or more hydrogen atoms in e) may be independently substituted by a cyano group, a fluorine atom or a chlorine atom, and K ^M1 and K ^M2 are each independently represented as a single bond, -CH ₂ CH ₂ -, - (CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -, -CF ₂ O-, -COO-, -OCO- or -C≡C-, PM 2, 3 or 4 And K ^M1 has a plurality of cases, they may be the same or different, PM is 2, 3 or 4 and C ^M2 has a plurality of cases, they may be the same or different, X ^M1 and X ^M3 each independently represent a hydrogen atom, a chlorine atom or a fluorine atom, X ^M2 represents a hydrogen atom, a fluorine a molecule, a chlorine atom, a cyano group, a trifluoromethyl group, a fluoromethoxy group, a difluoromethoxy group, a trifluoromethoxy group or a 2,2,2-trifluoroethyl group. However, the formula (i) Except for the compound represented by formula (ii)).

[7] A liquid crystal display device characterized by using the liquid crystal composition according to any one of the above [1] to [6].

[8] A liquid crystal display device according to any one of the above [1] to [6], wherein the liquid crystal composition according to any one of the above [1] to [6] is used.

[9] A liquid crystal display device of the FFS mode, which is characterized in that the liquid crystal composition according to any one of the above [1] to [6] is used.

[10] A liquid crystal display device according to any one of the above [1] to [6], wherein the liquid crystal composition according to any one of the above [1] to [6] is used.

[11] A liquid crystal display device according to any one of [1] to [6], wherein the liquid crystal composition according to any one of the above [1] to [6] is used.

[12] A liquid crystal display device according to any one of the above [1] to [6], wherein the liquid crystal composition according to any one of the above [1] to [6] is used.

[13] A liquid crystal display device using the liquid crystal display device according to any one of the above [7] to [12].

The liquid crystal composition having positive dielectric anisotropy of the present invention has a liquid crystal phase having a wide temperature range, has a substantially reduced viscosity, has good solubility in low temperature, and has a specific resistance or voltage retention rate via heat. The degree of change with light is minimal. Therefore, the liquid crystal composition of the present invention has high practicability (admissibility) for a liquid crystal product, and a high-speed reaction can be achieved by using a liquid crystal display element such as an IPS type or an FFS type using the liquid crystal composition. Moreover, since the liquid crystal composition of the present invention can exhibit its performance stably after passing through the manufacturing process of the liquid crystal display element, it is possible to suppress the display failure due to the manufacturing process and to manufacture the liquid crystal display element with high yield. Very useful.

100‧‧‧1st substrate

102‧‧‧TFT layer

103‧‧‧ pixel electrodes

104‧‧‧passivation film

105‧‧‧1st alignment film

200‧‧‧2nd substrate

201‧‧‧Flating film (coating layer)

202‧‧‧Black matrix

203‧‧‧Color filters

204‧‧‧Transparent electrode

205‧‧‧2nd alignment film

301‧‧‧ sealing material

302‧‧‧protrusions (columnar spacers)

303‧‧‧Liquid layer

304‧‧‧protrusions (columnar spacers)

401‧‧‧mask pattern

402‧‧‧ resin layer

L‧‧‧Light

Fig. 1 is a cross-sectional view showing a liquid crystal display element of the present invention. A substrate having 100 to 105 is referred to as a "backplane", and a substrate having 200 to 205 is referred to as a "front panel".

Fig. 2 is a view showing an exposure processing procedure for forming a columnar spacer formed on a black matrix as a mask pattern.

[Formation for carrying out the invention]

The liquid crystal composition having positive dielectric anisotropy according to the first embodiment of the present invention contains a component (A) having a positive dielectric component. The component (A) is composed of a compound having a dielectric anisotropy of 2 or more. Further, the dielectric anisotropy of the compound is a value extrapolated from the measured value of the dielectric anisotropy of the composition prepared by adding the liquid crystal composition having a dielectric anisotropy of about 0 at 25 °C.

The "%" in the following composition means "% by mass" unless otherwise specified.

The component (A) contains any one or two or more of the compounds represented by the following formula (i), and one or more of the compounds represented by the following formula (ii). .

<Compound represented by the formula (i)>

In the above formula (i), R ^11a represents an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent -CH ₂ - may be independently substituted with -CH=CH- And -C≡C-, -O-, -CO-, -COO- or -OCO-, wherein one or more hydrogen atoms in the alkyl group may be substituted with a fluorine atom or a chlorine atom.

The alkyl group has preferably 1 to 6 carbon atoms, more preferably 2 to 5, more preferably 3 to 5, more preferably 3 or 5. The alkyl group is preferably linear.

The type of the compound which can be combined is not particularly limited, and a plurality of compounds represented by the above formula (i) can be used in combination with desired properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The type of the compound represented by the above formula (i) used is, for example, one type in the embodiment of the present invention. Or another embodiment of the present invention is of two types.

The content of the compound represented by the formula (i) is preferably a low-temperature solubility, a transfer temperature, an electrical reliability, a complex refractive index, or the like, and has a preferred upper limit and a lower limit depending on the embodiment.

With respect to the total mass of the liquid crystal composition of the present invention, the lower limit of the content of the aforementioned compound is preferably 1%, more preferably 5%, and the upper limit of the content of the above compound is 25% is preferred, 22% is better, 20% is better, and 19% is particularly good.

In the case of using only one of the foregoing compounds, with respect to the above total mass, 1% is preferred, 2% is preferred, and 5% is more preferably 6% based on the lower limit of the content of the aforementioned compound. More preferably, it is preferably 25%, more preferably 20%, more preferably 15%, more preferably 12%, and 10% is more than the upper limit of the above-mentioned total mass. Excellent, 9% is the best.

In the case of using two of the above compounds, the lower limit of the total content of the above two compounds is preferably 8%, more preferably 10%, and even more preferably 13%, relative to the total mass. The upper limit of the total content of the above two compounds of the total mass is preferably 25%, more preferably 22%, more preferably 20%, and still more preferably 19%.

In the case where the solubility of the liquid crystal composition is important, it is preferable to use two kinds of the compounds represented by the above formula (i), and to increase the content of the compound represented by the formula (i), two types of the compound are used. It is better.

The content of the compound represented by the above formula (i) with respect to the total mass is 1 to 25% by mass in one embodiment, 2 to 20% by mass in other embodiments, and 4 in another embodiment. ~10% by mass, and in another embodiment, 10 to 30% by mass, and other embodiments In the state of 14 to 20% by mass, in other embodiments, it is 16 to 20% by mass, and in still other embodiments, it is 21 to 40% by mass.

Further, for example, the content of the compound represented by the above formula (i) is 1 to 40% by mass in one embodiment, and 1 to 35% by mass in other embodiments, based on the total mass of the liquid crystal composition of the present invention. Further, in other embodiments, it is 1 to 30% by mass, and still other embodiments are 1 to 25% by mass, and still other embodiments are 1 to 10% by mass, and still other embodiments are 1 to 7 mass%, and Still another embodiment is 1 to 5% by mass.

Further, the compound represented by the formula (i) is preferably a compound represented by the formula (28.1) to the formula (28.5). It is preferred that the composition contains any one or two of the compounds represented by the formula (28.3) and the formula (28.5).

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (28.3) is 1% by mass or more based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. 30% by mass or less is preferred. More preferably, the above-mentioned content is 2% by mass or more and 20% by mass or less, 2% by mass or more and 15% by mass or less, 2% by mass or more and 12% by mass or less, 2% by mass or more and 9% by mass or less, and 2% by mass. %% or more and 5% by mass or less, or 4% by mass or more and 20% by mass or less, 6% by mass or more and 20% by mass or less, 8% by mass or more and 20% by mass or less, 10% by mass or more and 20% by mass or less, 15% by mass or more and 20% by mass or less %the following.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (28.5) is considered to be 3% by mass or more based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The mass% or less is preferably 3% by mass or more and 20% by mass or less, more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less.

<Compound represented by the formula (ii)>

In the above formula (ii), R ^21a represents an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent -CH ₂ - may be independently substituted with -CH=CH- And -C≡C-, -O-, -CO-, -COO- or -OCO-, the hydrogen atom in the alkyl group may be substituted with a fluorine atom or a chlorine atom.

The alkyl group has preferably 1 to 6 carbon atoms, more preferably 1 to 4, more preferably 2 or 3.

In the above formula (ii), m ²¹ represents 0 or 1, X ²¹ , X ²² , X ²³ and X ²⁴ are each independently represented by a hydrogen atom, a fluorine atom or a chlorine atom, and X ²⁵ represents a hydrogen atom, a fluorine atom or a chlorine atom. , cyano, -CF ₃ or -OCF ₃ .

The m ²¹ system 1 is preferred.

It is more preferable that at least one of X ²¹ and X ²² is a hydrogen atom, and both of X ²¹ and X ²² are a hydrogen atom.

X ^23, X ²⁴ and X ²⁵ are each independently a fluorine atom is preferred, X ^23, X ²⁴ and X ²⁵ in the at least two fluorine atoms are more preferably as is, X ^23, X ²⁴ and X ^{25 of} the whole It is better for the fluorine atom.

Further, it is preferred that at least two of X ²¹ to X ²⁴ are fluorine atoms.

The compound represented by the above formula (ii) is preferably a compound represented by the formula (X-6).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, and one or two or more kinds of the compounds represented by the above formula (X-6) are combined in consideration of low-temperature solubility, transfer temperature, electrical reliability, complex refractive index, and the like. Preferably.

The content of the compound represented by the formula (ii) is considered to have properties such as solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index, and has an upper limit and a lower limit in each embodiment.

With respect to the total mass of the liquid crystal composition of the present invention, the lower limit of the content of the aforementioned compound is preferably 1%, more preferably 2%, and the upper limit of the content of the above compound is 25% is preferred, 20% is better, 18% is better, and 16% is particularly good.

In the case of using only one of the foregoing compounds, 1% is preferred, 2% is more preferred, and 3% is more preferably 4% based on the lower limit of the content of the aforementioned compound of the total mass. It is particularly preferable that 15% is preferable, 12% is more preferable, 10% is more preferable, 8% is particularly preferable, and 7% is relative to the upper limit of the content of the aforementioned compound of the total mass. optimal.

In the case of using two of the above-mentioned compounds, the lower limit of the total content of the above two compounds with respect to the total mass is preferably 5%, more preferably 7%, and even more preferably 10%. With respect to the upper limit of the total content of the above two compounds of the total mass, 25% is preferable, 20% is more preferable, 18% is more preferable, 16% is more preferable, and 13% is more. Good, 10% is excellent and 9% is best.

When the solubility of the liquid crystal composition is important, it is preferable to use two kinds of the compounds represented by the above formula (ii), and to increase the content of the compound represented by the formula (ii), two kinds of the compounds are used. It is better.

For example, in one embodiment of the present invention, the content of the compound is 3 to 30% by mass based on the total mass of the liquid crystal composition of the present invention, and is 3 to 25% by mass in other embodiments, and in other embodiments, 3 to 10% by mass, and other embodiments are 3 to 7 mass%, and in other embodiments, 5 to 10 mass%, and in other embodiments, 11 to 20 mass%, and further embodiments. It is 14 to 18% by mass. Further, in other embodiments, it is 18 to 25% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is 1 to 30% by mass based on the total mass of the liquid crystal composition of the present invention, and is 1 to 20% by mass in other embodiments, and further The embodiment is 1 to 13% by mass, and the other embodiments are 1 to 10 The mass % is 1 to 7 mass% in other embodiments, and 1 to 3 mass% in other embodiments.

In addition, the compound represented by the formula (X-6) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (44.1) to the formula (44.4). Among these, a compound represented by the formula (44.1) and/or the formula (44.2) is preferred.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (44.1) is 1% by mass or more based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. 25 mass% or less is preferable, 3 mass% or more and 20 mass% or less are more preferable, and 3 mass% or more and 15 mass% or less are more preferable, and 3 mass% or more and 10 mass% or less are especially preferable.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (44.2) is considered to be 1 mass in terms of the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. More preferably, it is more preferably 25% by mass or more, more preferably 3% by mass or more and 20% by mass or less, more preferably 3% by mass or more and 15% by mass or less, and particularly preferably 3% by mass or more and 10% by mass or less.

In the liquid crystal composition of the present invention, the total content of the compound represented by the formula (44.1) and the compound represented by the formula (44.2) is considered to be the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The total mass of the material is preferably 5% by mass or more and 45% by mass or less, more preferably 7% by mass or more and 25% by mass or less, and still more preferably 7% by mass or more and 20% by mass or less. In a more preferable range, the content may be, for example, 7 mass% or more and 15 mass% or less, 7 mass% or more and 12 mass% or less, 7 mass% or more and 10 mass% or less, and 10 mass% or more and 15 mass% or less. 12% by mass or more and 15% by mass or less.

It is preferred to combine the compound represented by the formula (i) and the compound represented by the formula (ii) with 2 to 4 kinds of compounds, and it is more preferable to use 3 or 4 kinds.

With respect to the total mass of the liquid crystal composition of the present invention, 5% is preferably 8% of the lower limit of the total content of the compound represented by the formula (i) and the compound represented by the formula (ii). For better, 10% is better and 15% is better. With respect to the upper limit of the total amount of the aforementioned total mass, 40% is preferable, 35% is more preferable, 30% is more preferable, 25% is more preferable, and 20% is particularly preferable, 15 % is the best.

When two kinds of the compound represented by the above formula (i) and the compound represented by the above formula (ii) are used in combination, the total content is the total content of the above two compounds. In terms of the limit, 8% is preferred, 10% is more preferred, and 12% is more preferred. The upper limit of the total content of the above two compounds with respect to the total mass is preferably 20%, more preferably 18%, and still more preferably 15%.

When one or two kinds of the compounds represented by the above formula (i) are used in combination with two or more kinds of the compounds represented by the above formula (ii), three types are used, and the above-mentioned total mass is 3 The lower limit of the total content of the compounds is preferably 5%, more preferably 8%, and still more preferably 10%. With respect to the upper limit of the total content of the above three kinds of compounds with respect to the above total mass, 30% is preferable, 25% is more preferable, 23% is more preferable, and 18% is particularly preferable.

When four or three kinds of the compounds represented by the above formula (i) are used in combination with one or three kinds of the compounds represented by the above formula (ii), four kinds of the compounds of the above-mentioned total mass are used. The lower limit of the total content is preferably 20%, more preferably 25%, and even more preferably 28%. With respect to the upper limit of the total content of the above four compounds with respect to the above total mass, 40% is preferable, 35% is more preferable, and 33% is more preferable.

When the solubility of the liquid crystal composition is important, it is preferable to use the above-mentioned combination of two or a combination of the above, and it is preferable to use the compound represented by the above formula (i) and the compound represented by the above formula (ii). In the case where the total content of the compounds is increased, it is preferred to use two or a combination of the above.

The liquid crystal composition of the first embodiment of the present invention may contain any one or two or more kinds of the compounds represented by the following formula (L).

(wherein R ^L1 and R ^L2 are each independently represented by an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent -CH ₂ - may be independently substituted with -CH= CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-, OL represents 0, 1, 2 or 3, and B ^L1 , B ^L2 and B ^L3 are each independently represented as selected from the following The group of constituent groups: (a) 1,4-cycloalkylene group (1 -CH ₂ - or 2 or more -CH ₂ - which are not adjacent to this group may be substituted with -O-) And (b) 1,4-phenylene (one of which is present in this group -CH= or two or more non-contiguous -CH= may be substituted with -N=).

One or more of the above-mentioned groups (a) and (b) and/or two or more hydrogen atoms may be independently substituted by a cyano group, a fluorine atom or a chlorine atom, and L ^L1 and L ^L2 are each independently represented as a single bond. , -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -OCF ₂ -, -CF ₂ O-, -CH=NN =CH-, -CH=CH-, -CF=CF- or -C≡C-, OL is 2 or 3 and L ^L2 has a plurality of cases, they may be the same or different, OL is 2 or 3 and B ^L3 has a plurality of cases in which they may be the same or different.

The type of the compound which can be combined is not particularly limited, but a plurality of compounds represented by the above formula (L) can be appropriately combined in accordance with the desired properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. use. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Again, in Other embodiments of the present invention are five types. Further, in another embodiment of the present invention, there are six types. Further, in another embodiment of the present invention, there are seven types. Further, in another embodiment of the present invention, there are eight types. Further, in another embodiment of the present invention, there are nine types. Further, in another embodiment of the present invention, it is 10 or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (L) is required to be in response to low temperature solubility, transfer temperature, electrical reliability, complex refractive index, process suitability, drip marks, afterimage, The performance of the dielectric anisotropy or the like is suitably adjusted.

The content of the above compound is, for example, 1 to 95% by mass based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 10 to 95% by mass. Further, in another embodiment of the present invention, the content is 20 to 95% by mass. Further, in another embodiment of the present invention, the content is from 30 to 95% by mass. Further, in another embodiment of the present invention, the content is 40% by mass to 95% by mass. Further, in another embodiment of the present invention, the content is 50 to 95% by mass. Further, in another embodiment of the present invention, the content is 55 to 95% by mass. Further, in another embodiment of the present invention, the content is 60 to 95% by mass. Further, in another embodiment of the present invention, the content is 65 to 95% by mass. Further, in another embodiment of the present invention, the content is 70 to 95% by mass. Further, in another embodiment of the present invention, the content is 75 to 95% by mass. Furthermore, in another embodiment of the present invention, the content is 80 to 95% by mass.

Further, the content of the above compound is, for example, in the form of one aspect of the present invention, in the form of 1 to 95%, based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is 1% to 85%. Further, in another embodiment of the present invention, the content is 1 to 75%. Further, in another embodiment of the present invention, the content is 1% to 65%. Further, in another embodiment of the present invention, the content is 1 to 55%. Further, in another embodiment of the present invention, the content is 1% to 45%. Further, in another embodiment of the present invention, the content is 1 to 35%. Further, in another embodiment of the present invention, the content is 1% to 25%.

It is preferable that the liquid crystal composition having the viscosity of the liquid crystal composition of the present invention is kept at a low value and the reaction rate is accelerated, and the lower limit is high and the upper limit is high. Further, it is preferable that the liquid crystal composition of the present invention has a Tni which is high in value and good in temperature stability, and it is preferable that the lower limit is high and the upper limit is high. Further, in order to keep the driving voltage at a low value and to make the dielectric anisotropy a large value, it is preferable that the lower limit value is low and the upper limit value is low.

R ^L1 and R ^L2 are a case where the ring structure of the bond is a phenyl group (aromatic), a linear alkyl group having 1 to 5 carbon atoms, and a linear carbon number of 1 to 4 (or more) The alkoxy group and the alkenyl group having 4 to 5 carbon atoms are preferred, and the bonded ring structure is cyclohexane, meme, and In the case of a saturated ring structure such as an alkane, a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 or more carbon atoms, and a linear carbon atom 2 to 5 alkenyl groups are preferred.

The compound represented by the formula (L) is preferably a case where the liquid crystal composition is required to be chemically stable, and it is preferred that the molecule does not have a chlorine atom in the molecule.

The compound represented by the formula (L) is preferably, for example, a compound selected from the group of compounds represented by the formula (I).

R ¹¹ -A ¹¹ -A ¹² -R ¹² (I)

(wherein R ¹¹ and R ¹² are each independently represented by an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms; and each of A ¹¹ and A ¹² Independently represented by 1,4-cycloalkylene, 1,4-phenylene, 2-fluoro-1,4-phenylene or 3-fluoro-1,4-phenylene).

The type of the compound which can be combined is not particularly limited, but it is preferable to combine the plural compounds represented by the above formula (I) in view of the performance of low temperature solubility, transfer temperature, electrical reliability, complex refractive index and the like. use. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, there are five types. Further, in another embodiment of the present invention, it is six or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (I) is dependent on the solubility at low temperature, the transfer temperature, the electrical reliability, the complex refractive index, the process suitability, the drip mark, the afterimage, The performance of the dielectric anisotropy or the like is suitably adjusted.

The content of the above compound is, for example, 3 to 75% by mass in terms of one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 15 to 75% by mass. Further, in another embodiment of the present invention, the content is from 18 to 75% by mass. Further, in another embodiment of the present invention, the content is 20 to 75% by mass. Further, in another embodiment of the present invention, the content is from 29 to 75% by mass. Further, in another embodiment of the present invention, the content is 35 to 75% by mass. Further, in another embodiment of the present invention, the content is 42% to 75% by mass. Further, in another embodiment of the present invention, the content is 47 to 75% by mass. Further, in another embodiment of the present invention, the content is 53 to 75% by mass. Further, in another embodiment of the present invention, the content is 56 to 75% by mass. Further, in another embodiment of the present invention, the content is 60 to 75% by mass. Further, in another embodiment of the present invention, the content is 65 to 75% by mass.

Further, the content is, for example, 3 to 75% by mass in one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is 3 to 65% by mass. Further, in another embodiment of the present invention, the content is from 3 to 55% by mass. Further, in another embodiment of the present invention, the content is from 3 to 50% by mass. Further, in another embodiment of the present invention, the content is from 3 to 45% by mass. Further, in another embodiment of the present invention, the content is from 3 to 40% by mass. Further, in another embodiment of the present invention, the content is from 3 to 35% by mass. Further, in another embodiment of the present invention, the content is 3 to 30% by mass.

In the case where the viscosity of the liquid crystal composition of the present invention is kept low and the reaction rate is fast, it is necessary that the lower limit is high and the upper limit is high. Further, it is preferable that the liquid crystal composition of the present invention has a Tni which is high in value and good in temperature stability, and the lower limit is moderate and the upper limit is moderate. Further, in order to keep the driving voltage at a low value and to make the dielectric anisotropy a large value, it is preferable that the lower limit value is low and the upper limit value is low.

R ^M1 , in the case where the ring to which the bond is bonded is a phenyl group (aromatic), a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 carbon atoms, and The alkenyl group having 4 to 5 carbon atoms is preferred, and the ring to which the bond is bonded is cyclohexane, meme, and In the case of a saturated ring structure such as an alkane, a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 carbon atoms, and a linear carbon number of 2 to 5 are used. Alkenyl is preferred.

Further, the compound represented by the formula (I) is preferably a compound selected from the group consisting of the compounds represented by the formula (I-1).

(wherein R ¹¹ and R ¹² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms).

The type of the compound which can be combined is not particularly limited, but the complex number represented by the above formula (I-1) can be appropriately combined in view of the performance of low temperature solubility, transfer temperature, electrical reliability, and complex refractive index. Compounds are used. The kind of compound used, for example, the present invention In one embodiment, it is one type. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, it is five or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (I-1) is required to be in response to low temperature solubility, transfer temperature, electrical reliability, complex refractive index, process suitability, drip marks, and residue. The performance of the shadow, dielectric anisotropy, etc. is appropriately adjusted.

The content of the above compound is, for example, in the embodiment of the present invention, the content of the compound is from 3 to 70% by mass based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 15 to 70% by mass. Further, in another embodiment of the present invention, the content is from 18 to 70% by mass. Further, in another embodiment of the present invention, the content is 25 to 70% by mass. Further, in another embodiment of the present invention, the content is from 29 to 70% by mass. Further, in another embodiment of the present invention, the content is 31% to 70% by mass. Further, in another embodiment of the present invention, the content is 35 to 70% by mass. Further, in another embodiment of the present invention, the content is 43% to 70% by mass. Further, in another embodiment of the present invention, the content is 47% to 70% by mass. Further, in another embodiment of the present invention, the content is 50% to 70% by mass. Further, in another embodiment of the present invention, the content is 53 to 70% by mass. Further, in another embodiment of the present invention, the content is 56 to 70% by mass.

The content of the above compound, for example, in one embodiment of the present invention, is from 3 to 70% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is from 3 to 60% by mass. Further, in another embodiment of the present invention, the content is 3 to 50% by mass. Further, in another embodiment of the present invention, the content is 3 to 45% by mass. Further, in another embodiment of the present invention, the content is from 3 to 40% by mass. Further, in another embodiment of the present invention, the content is 3 to 35% by mass. Further, in another embodiment of the present invention, the content is 3 to 30% by mass. Further, in another embodiment of the present invention, the content is 3 to 26% by mass.

In the case where the viscosity of the liquid crystal composition of the present invention is kept low and the reaction rate is fast, it is preferable that the lower limit is high and the upper limit is high. Further, it is preferable that the liquid crystal composition of the present invention has a Tni held high and a liquid crystal composition having good temperature stability is necessary, and the lower limit is moderate and the upper limit is moderate. Further, in order to keep the driving voltage at a low value and to make the dielectric anisotropy a large value, it is preferable that the lower limit value is low and the upper limit value is low.

Further, the compound represented by the formula (I-1) is preferably a compound selected from the group of compounds represented by the formula (I-1-1).

(wherein R ^{12 is} each independently represented by an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms).

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (I-1-1) is required to correspond to low-temperature solubility, transfer temperature, electrical reliability, complex refractive index, process suitability, and dripping trace. The performance desired by the image, the residual image, and the dielectric anisotropy are appropriately adjusted.

The content of the above compound is, for example, 2 to 60% by mass based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 4 to 60% by mass. Further, in another embodiment of the present invention, the content is 7 to 60% by mass. Further, in another embodiment of the present invention, the content is from 11 to 60% by mass. Further, in another embodiment of the present invention, the content is 13 to 60% by mass. Further, in another embodiment of the present invention, the content is 15 to 60% by mass. Further, in another embodiment of the present invention, the content is from 17 to 60% by mass. Further, in another embodiment of the present invention, the content is 20 to 60% by mass. Further, in another embodiment of the present invention, the content is 25 to 60% by mass. Further, in another embodiment of the present invention, the content is 30% to 60% by mass. Further, in another embodiment of the present invention, the content is 32% to 60% by mass. Further, in another embodiment of the present invention, the content is 35 to 60% by mass.

The content of the above compound is, for example, 2 to 60% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is 2 to 50% by mass. Further, in another embodiment of the present invention, the content is 2 to 40% by mass. Further, in another embodiment of the present invention, the content is 2 to 35% by mass. Furthermore, in another embodiment of the present invention, the content is 2 to 30. quality%. Further, in another embodiment of the present invention, the content is 2 to 25% by mass. Further, in another embodiment of the present invention, the content is 2 to 20% by mass. Further, in another embodiment of the present invention, the content is 2 to 15% by mass.

Further, the compound represented by the formula (I-1-1) is preferably a compound selected from the group consisting of compounds represented by the formulae (1.1) to (1.3), and represented by the formula (1.2) or the formula (1.3). A compound is preferred, and in particular, a compound represented by the formula (1.3) is preferred.

When the compounds represented by the formula (1.2) or the formula (1.3) are used singly or in combination, the content of the compound represented by the formula (1.2) is high, and the improvement in the reaction rate is effective, and is represented by the formula (1.3). The content of the compound is preferably in the range shown below, and it is preferably a liquid crystal composition having a high reaction rate and high electrical and optical reliability.

The compound represented by the formula (1.3) is preferably contained in an amount of 7 mass% or more and 35 mass% or less, more preferably 7 mass% or more and 30 mass% or less, based on the total mass of the liquid crystal composition of the present invention. It is more preferably 2% by mass or more and 25% by mass or less, more preferably 9% by mass or more and 20% by mass or less, and most preferably 10% by mass or more and 15% by mass or less.

Further, the compound represented by the formula (I-1) is preferably a compound selected from the group of compounds represented by the formula (I-1-2).

(wherein R ^{12 is} each independently represented by an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms).

The type of the compound which can be combined is not particularly limited, but may be suitably combined with the above-described general formula (I-1-2) in view of the performance of low temperature solubility, transfer temperature, electrical reliability, complex refractive index and the like. The compound of the plural is used. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (I-1-2) is required to correspond to low-temperature solubility, transfer temperature, electrical reliability, complex refractive index, process suitability, and dripping trace. The performance of the image, the residual image, and the dielectric anisotropy are appropriately adjusted.

The content of the above compound is, for example, 7 to 60% by mass based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 15 to 60% by mass. Further, in another embodiment of the present invention, the content is from 18 to 60% by mass. Further, in another embodiment of the present invention, the content is 21 to 60% by mass. Further, in another embodiment of the present invention, the content is 24 to 60% by mass. Further, in another embodiment of the present invention, the content is 27 to 60% by mass. Further, in another embodiment of the present invention, the content is 30% to 60% by mass. Further, in another embodiment of the present invention, the content is 34% to 60% by mass. Also, in this In another embodiment of the invention, the content is 37 to 60% by mass. Further, in another embodiment of the present invention, the content is 41 to 60% by mass. Further, in another embodiment of the present invention, the content is from 47 to 60% by mass. Further, in another embodiment of the present invention, the content is 50% to 60% by mass.

Further, the content of the above compound is, for example, 7 to 60% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is 7 to 55% by mass. Further, in another embodiment of the present invention, the content is 7 to 45% by mass. Further, in another embodiment of the present invention, the content is 7 to 40% by mass. Further, in another embodiment of the present invention, the content is 7 to 35% by mass. Further, in another embodiment of the present invention, the content is 7 to 30% by mass. Further, in another embodiment of the present invention, the content is 7 to 25% by mass. Further, in another embodiment of the present invention, the content is 7 to 20% by mass.

Further, the compound represented by the formula (I-1-2) is preferably a compound selected from the group consisting of compounds represented by the formulae (2.1) to (2.4), and represented by the formula (2.2) to the formula (2.4). Compounds are preferred. In particular, the compound represented by the formula (2.2) is preferred because it particularly improves the reaction rate of the liquid crystal composition of the present invention. Further, when a Tni having a higher reaction rate is sought, it is preferred to use a compound represented by the formula (2.3) or the formula (2.4). The content of the compound represented by the formula (2.3) and the formula (2.4) is preferably 30% or more in order to improve the solubility at a low temperature.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (2.2) is preferably 5% by mass or more and 55% by mass or less based on the total mass of the liquid crystal composition of the present invention. More preferably, the content is 10% by mass or less, 40% by mass or less, 14% by mass or more and 40% by mass or less, 17% by mass or more and 40% by mass or less, 19% by mass or more and 40% by mass or less, and 22% by mass. 40% by mass or less, 25% by mass or more and 40% by mass or less, 27% by mass or more and 40% by mass or less, 30% by mass or more and 40% by mass or less, 33% by mass or more and 40% by mass or less, and 36% by mass or more and 40% by mass or less the following.

In the liquid crystal composition of the present invention, the amount of the compound represented by the formula (2.3) is preferably 5% by mass or more and 55% by mass or less based on the total mass of the liquid crystal composition of the present invention, and 10% by mass and 45% by mass. More preferably, it is more preferably 10% by mass or more and 35% by mass or less, more preferably 10% by mass or more and 30% by mass or less, more preferably 10% by mass or more and 25% by mass or less, and 15% by mass or more and 25% by mass or less. More preferably, 17% by mass or more and 22% by mass or less are particularly preferable.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (2.4) is preferably 1% by mass or more and 55% by mass or less based on the total mass of the liquid crystal composition of the present invention, and 3% by mass and 45% by mass. The following is more preferable, and it is more preferably 3 mass% or more and 35 mass% or less, more preferably 3 mass% or more and 25 mass% or less, more preferably 3 mass% or more and 15 mass% or less, and 5 mass% or more and 12 mass% or less. Better, 5 mass% 10% by mass or less is more preferable, and 6% by mass or more and 8% by mass or less is particularly preferable.

The liquid crystal composition of the present invention may further contain a compound represented by the formula (2.5) having a structure similar to the compound represented by the formula (I-1-2).

It is preferable to adjust the content of the compound represented by the formula (2.5) in accordance with the performance of the low temperature solubility, the transfer temperature, the electrical reliability, the complex refractive index, etc., with respect to the total mass of the liquid crystal composition of the present invention, The compound is preferably 11% by mass or more, more preferably 15% by mass or more, more preferably 23% by mass or more, more preferably 26% by mass or more, and particularly preferably 28% by mass or more.

Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-2).

(wherein R ¹³ and R ¹⁴ are each independently represented by an alkyl group having 1 to 5 carbon atoms).

The type of the compound which can be combined is not particularly limited, but the complex compound represented by the above formula (I-2) can be combined in view of the properties required for low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. . The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (I-2) is dependent on the solubility at low temperature, the transfer temperature, the electrical reliability, the complex refractive index, the process suitability, the trace of the drip, and the residue. The performance of the shadow, dielectric anisotropy, etc. is appropriately adjusted.

The content of the above compound is, for example, 3 to 60% by mass based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 4 to 60% by mass. Further, in another embodiment of the present invention, the content is 15 to 60% by mass. Further, in another embodiment of the present invention, the content is 25 to 60% by mass. Further, in another embodiment of the present invention, the content is 30% to 60% by mass. Further, in another embodiment of the present invention, the content is 35 to 60% by mass. Further, in another embodiment of the present invention, the content is 38 to 60% by mass. Further, in another embodiment of the present invention, the content is 40 to 60% by mass. Further, in another embodiment of the present invention, the content is 42 to 60% by mass. Further, in another embodiment of the present invention, the content is 45 to 60% by mass. Further, in another embodiment of the present invention, the content is from 47 to 60% by mass. Further, in another embodiment of the present invention, the content is 50% to 60% by mass.

Further, the content of the above compound, for example, in one embodiment of the present invention, is from 3 to 60% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is from 3 to 55% by mass. Further, in another embodiment of the present invention, the content is 3 to 45% by mass. Further, in another embodiment of the present invention, the content is from 3 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 30. quality%. Further, in another embodiment of the present invention, the content is 3 to 20% by mass. Further, in another embodiment of the present invention, the content is 3 to 15% by mass. Further, in another embodiment of the present invention, the content is 3 to 5% by mass.

Further, the compound represented by the formula (I-2) is preferably a compound selected from the group consisting of compounds represented by the formulae (3.1) to (3.4), and the formula (3.1), the formula (3.3) or the formula (3.4) The compound represented is preferred. In particular, the compound represented by the formula (3.2) is preferred because it particularly improves the reaction rate of the liquid crystal composition of the present invention. Further, when a Tni having a higher reaction rate is sought, it is preferred to use a compound represented by the formula (3.3) or the formula (3.4). The content of the compound represented by the formula (3.3) and the formula (3.4) is preferably not more than 20% in order to improve the solubility at a low temperature.

Further, the compound represented by the formula (I-2) is preferably a compound selected from the group consisting of compounds represented by the formulae (3.1) to (3.4), and the formula (3.1), the formula (3.3) and/or the formula ( The compound represented by 3.4) is preferred.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (3.3) is preferably 2% by mass or more and 40% by mass or less based on the total mass of the liquid crystal composition of the present invention. The more preferable content is, for example, 3 mass% or more and 40 mass% or less, 4 mass% or more and 40 mass% or less, 10 mass% or more, 40 mass% or less, and 12 mass%. 40% by mass or less, 14% by mass or more and 40% by mass or less, 16% by mass or more and 40% by mass or less, 20% by mass or more and 40% by mass or less, 23% by mass or more and 40% by mass or less, 26% by mass or more and 40% by mass or less. 30% by mass or more and 40% by mass or less, 34% by mass or more and 40% by mass or less, 37% by mass or more and 40% by mass or less, or 3% by mass or more and 4% by mass or less, 3% by mass or more and 10% by mass or less, and 3 mass% %% or more and 12% by mass or less, 3% by mass or more and 14% by mass or less, 3% by mass or more and 16% by mass or less, 3% by mass or more and 20% by mass or less, 3% by mass or more and 23% by mass or less, and 3% by mass or more and 26% by mass or less. Hereinafter, it is 3% by mass or more and 30% by mass or less, 3% by mass or more and 34% by mass or less, and 3% by mass or more and 37% by mass or less.

Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-3).

(wherein R ¹³ represents an alkyl group having 1 to 5 carbon atoms, and R ¹⁵ represents an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not particularly limited, but the complex compound represented by the above formula (I-3) can be combined in view of the properties required for low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. . The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (I-3) is required to depend on the solubility at low temperature, the transfer temperature, The reliability of electrical reliability, complex refractive index, process suitability, drip marks, afterimage, dielectric anisotropy, etc. are appropriately adjusted.

The content of the above compound is, for example, 3% by mass in one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 4 to 60% by mass. Further, in another embodiment of the present invention, the content is 15 to 60% by mass. Further, in another embodiment of the present invention, the content is 25 to 60% by mass. Further, in another embodiment of the present invention, the content is 30 to 60% by mass. Further, in another embodiment of the present invention, the content is 35 to 60% by mass. Further, in another embodiment of the present invention, the content is 38 to 60% by mass. Further, in another embodiment of the present invention, the content is 40 to 60% by mass. Further, in another embodiment of the present invention, the content is 42 to 60% by mass. Further, in another embodiment of the present invention, the content is 45 to 60% by mass. Further, in another embodiment of the present invention, the content is 47 to 60% by mass. Further, in another embodiment of the present invention, the content is 50 to 60% by mass.

Further, the content of the above compound, for example, in one embodiment of the present invention, is from 3 to 60% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is from 3 to 55% by mass. Further, in another embodiment of the present invention, the content is 3 to 45% by mass. Further, in another embodiment of the present invention, the content is from 3 to 40% by mass. Further, in another embodiment of the present invention, the content is 3 to 30% by mass. Further, in another embodiment of the present invention, the content is 3 to 20% by mass. Further, in another embodiment of the present invention, the content is 3 to 15% by mass. Further, in another embodiment of the present invention, the content is 3 to 5% by mass.

When the solubility in low temperature is emphasized, the effect is high when the content is set to be large, and conversely, when the reaction rate is emphasized, when the content is set to be small, the effect is high. Further, in the case of improving the characteristics of the drip mark or the afterimage, it is preferable to set the content range in the middle.

Further, the compound represented by the formula (I-3) is preferably a compound selected from the group consisting of the compounds represented by the formulae (4.1) to (4.3), and a compound represented by the formula (4.3) is preferred.

The content of the compound represented by the formula (4.3) is preferably 2% by mass or more and 30% by mass or less, more preferably 4% by mass or more and 30% by mass or less, based on the total amount of the liquid crystal composition of the present invention. More preferably, the amount is more than 30% by mass, more preferably from 8% by mass to 30% by mass, more preferably from 10% by mass to 30% by mass, even more preferably from 12% by mass to 30% by mass, more preferably from 14% by mass or more. 30% by mass or less is more preferably 16% by mass or more and 30% by mass or less is more preferably 18% by mass or more and 25% by mass or less is more preferably 20% by mass or more and 24% by mass or less is more preferably 22% by mass or more and 23% by mass. % below is especially good.

Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-4).

(wherein R ¹¹ and R ¹² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not particularly limited, but the plural compound represented by the above formula (I-4) can be combined in accordance with the performance of low temperature solubility, transfer temperature, electrical reliability, complex refractive index and the like. . The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (I-4) is required to be in response to low temperature solubility, transfer temperature, electrical reliability, complex refractive index, process suitability, drip marks, and residue. The performance of the shadow, dielectric anisotropy, etc. is appropriately adjusted.

The content of the above compound is, for example, 3 to 50% by mass based on one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 5 to 50% by mass. Further, in another embodiment of the present invention, the content is 6 to 50% by mass. Further, in another embodiment of the present invention, the content is 8 to 50% by mass. Further, in another embodiment of the present invention, the content is 10 to 50% by mass. Further, in another embodiment of the present invention, the content is from 12 to 50% by mass. Further, in another embodiment of the present invention, the content is 15 to 50% by mass. Further, in another embodiment of the present invention, the content is 20 to 50% by mass. Further, in another embodiment of the present invention, the content is 25 to 50% by mass. Further, in another embodiment of the present invention, the content is 30 to 50% by mass. Further, in another embodiment of the present invention, the content is 35 to 50% by mass. Further, in another embodiment of the present invention, the content is 40 to 50% by mass.

Further, the content of the above compound, for example, in one embodiment of the present invention, is from 3 to 50% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is from 3 to 40% by mass. Further, in another embodiment of the present invention, the content is from 3 to 35% by mass. Further, in another embodiment of the present invention, the content is 3 to 30% by mass. Further, in another embodiment of the present invention, the content is 3 to 20% by mass. Further, in another embodiment of the present invention, the content is 3 to 15% by mass. Further, in another embodiment of the present invention, the content is 3 to 10% by mass. Further, in another embodiment of the present invention, the content is 3 to 5% by mass.

In the case where a high complex refractive index is obtained, when the content is set to be large, the effect is high. Conversely, when the high Tni is emphasized, when the content is set to be small, the effect is high. Further, in the case of improving the characteristics of the drip mark or the residual image, it is preferable to set the range of the content to the middle.

Further, the compound represented by the formula (I-4) is preferably a compound selected from the group consisting of compounds represented by the formulae (5.1) to (5.4), and the compound represented by the formula (5.2) to the formula (5.4) is preferably Preferably.

The content of the compound represented by the formula (5.4) is preferably 2% by mass or more and 30% by mass or less based on the total mass of the liquid crystal composition of the present invention. For better content, for example, 4% by mass or more can be exemplified 30% by mass or less, 6% by mass or more and 30% by mass or less, 8% by mass or more and 30% by mass or less, 10% by mass or more and 30% by mass or less, 12% by mass or more and 30% by mass or less, 14% by mass or more and 30% by mass or less, and 14% by mass or more and 30% by mass or less. 16% by mass or more and 30% by mass or less, 18% by mass or more and 30% by mass or less, 20% by mass or more and 30% by mass or less, 22% by mass or more and 30% by mass or less, 23% by mass or more and 30% by mass or less, and 24% by mass or more. 5% by mass or less, 25% by mass or more and 30% by mass or less, or 4% by mass or more and 6% by mass or less, 4% by mass or more and 8% by mass or less, 4% by mass or more and 10% by mass or less, 4% by mass or more and 12% by mass or less. 4% by mass or more and 14% by mass or less, 4% by mass or more and 16% by mass or less, 4% by mass or more and 18% by mass or less, 4% by mass or more and 20% by mass or less, 4% by mass or more and 22% by mass or less, and 4% by mass or more. 23% by mass or less, 4% by mass or more and 24% by mass or less, and 4% by mass or more and 25% by mass or less.

Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-5).

(wherein R ¹¹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and R ¹² represents an alkyl group having 1 to 5 carbon atoms; , an alkenyl group having 4 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not particularly limited, but the plural compound represented by the above formula (I-5) can be combined in view of the properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The type of compound used, for example, in the form of an embodiment of the present invention The state is one type. Or other embodiments of the present invention are of two types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (I-5) is dependent on the solubility at low temperature, the transfer temperature, electrical reliability, complex refractive index, process suitability, dripping marks, The performance of the image such as afterimage, dielectric anisotropy, etc. is appropriately adjusted.

The content of the above compound is, for example, 1 to 50% by mass based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 5 to 50% by mass. Further, in another embodiment of the present invention, the content is 8 to 50% by mass. Further, in another embodiment of the present invention, the content is 11 to 50% by mass. Further, in another embodiment of the present invention, the content is 13 to 50% by mass. Further, in another embodiment of the present invention, the content is 15 to 50% by mass. Further, in another embodiment of the present invention, the content is 17 to 50% by mass. Further, in another embodiment of the present invention, the content is 20 to 50% by mass. Further, in another embodiment of the present invention, the content is 25 to 50% by mass. Further, in another embodiment of the present invention, the content is 30 to 50% by mass. Further, in another embodiment of the present invention, the content is 35 to 50% by mass. Further, in another embodiment of the present invention, the content is 40 to 50% by mass.

Further, the content of the above compound, for example, in one embodiment of the present invention, is from 1 to 50% based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is 1% to 40%. Furthermore, in another embodiment of the present invention, the content is 1~35%. Further, in another embodiment of the present invention, the content is 1% to 30%. Further, in another embodiment of the present invention, the content is 1% to 20%. Further, in another embodiment of the present invention, the content is 1% to 15%. Further, in another embodiment of the present invention, the content is 1% to 10%. Further, in another embodiment of the present invention, the content is 1% to 5%.

When the solubility in low temperature is emphasized, when the content is set to be large, the effect is high. Conversely, when the reaction rate is emphasized, when the content is set to be small, the effect is high. Further, in the case of improving the characteristics of the drip mark or the residual image, it is preferable to set the range of the content to the middle.

Further, the compound represented by the formula (I-5) is preferably a compound selected from the group consisting of compounds represented by the formulae (6.1) to (6.6), and the formula (6.3), the formula (6.4) and the formula (6.6) The compound represented is preferred.

For example, the content of the compound represented by the formula (6.6) is preferably 2% by mass or more and 30% by mass or less, and more preferably 4% by mass or more and 30% by mass or less based on the total mass of the liquid crystal composition of the present invention. 5 mass% or more and 30 mass% or less are more preferable, and 6 mass% or more and 30 mass% or less are more preferable, and 9 mass% or more and 30 mass% or less are more preferable. More preferably, the mass% is 30% by mass or less, more preferably 14% by mass or more and 30% by mass or less, more preferably 16% by mass or more and 30% by mass or less, and more preferably 18% by mass or more and 25% by mass or less, and more preferably 20% by mass. The above 24 mass% or less is more preferable, and 22 mass% or more and 23 mass% or less are particularly preferable.

The liquid crystal composition of the present invention may further contain a compound represented by the formula (6.7) and the formula (6.8) which is a compound represented by the formula (I-5).

It is preferred to adjust the content of the compound represented by the formula (6.7) in view of the properties of low temperature solubility, transfer temperature, electrical reliability, complex refractive index, etc., and the total amount of the compound relative to the liquid crystal composition of the present invention. The mass is preferably 2% by mass or more, more preferably 3% by mass or more, more preferably 5% by mass or more, and particularly preferably 7% by mass or more.

Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-6).

(wherein R ¹¹ and R ¹² are each independently represented by 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 each of X ¹¹ and X ¹² Independently represented by a fluorine atom or a hydrogen atom, either X ¹¹ or X ¹² is a fluorine atom).

The content of the compound represented by the formula (I-6) is preferably 2% by mass or more and 30% by mass or less based on the total mass of the liquid crystal composition of the present invention, and more preferably 4% by mass or more and 30% by mass or less. 5% by mass or more and 30% by mass or less is more preferably 6% by mass or more and 30% by mass or less, more preferably 9% by mass or more and 30% by mass or less, and more preferably 12% by mass or more and 30% by mass or less. It is more preferably 30% by mass or more and 30% by mass or less, more preferably 16% by mass or more and 30% by mass or less, more preferably 18% by mass or more and 25% by mass or less, more preferably 20% by mass or more and 24% by mass or less, and 22% by mass or less. The above 23% by mass or less is particularly preferable.

Further, the compound represented by the formula (I-6) is preferably a compound represented by the formula (7.1).

Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-7).

(wherein R ¹¹ and R ¹² are each independently represented by 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 X ^{12 is} independently represented by Fluorine or chlorine atom).

The content of the compound represented by the formula (I-7) is preferably 1% by mass or more and 30% by mass or less based on the total mass of the liquid crystal composition of the present invention, and more preferably 2% by mass or more and 30% by mass or less. 3% by mass or more and 30% by mass or less is more preferably 4% by mass or more and 30% by mass or less. More preferably, it is more preferably 6 mass% or more and 30 mass% or less, more preferably 8 mass% or more and 30 mass% or less, more preferably 10 mass% or more and 30 mass% or less, and 12 mass% or more and 30 mass% or less. More preferably, it is more preferably 15% by mass or more and 25% by mass or less, more preferably 18% by mass or more and 24% by mass or less, and particularly preferably 21% by mass or more and 22% by mass or less.

Further, the compound represented by the formula (I-7) is preferably a compound represented by the formula (8.1).

Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-8).

(wherein R ¹⁶ and R ¹⁷ are each independently represented by an alkenyl group having 2 to 5 carbon atoms).

The type of the compound which can be combined is not particularly limited, but in the complex compound represented by the above formula (I-8), in view of the properties required for low-temperature solubility, transfer temperature, electrical reliability, complex refractive index and the like. A combination of 1 to 3 types is preferred. The content of the compound represented by the formula (I-8) depends on the solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, process suitability, dripping marks, afterimage, dielectric anisotropy, and the like. The performance is preferably 5% by mass or more and 65% by mass or less, more preferably 10% by mass or more and 5% by mass or less, and more preferably 15% by mass or more and 5% by mass or less based on the total mass of the liquid crystal composition of the present invention. More preferably, it is more preferably 20% by mass or more and 65% by mass or less, more preferably 25% by mass or more and 65% by mass or less, more preferably 30% by mass or more and 65% by mass or less, and more preferably 35% by mass or more and 65% by mass or less. Preferably, it is more preferably 40% by mass or more and 65% by mass or less, more preferably 45% by mass or more and 60% by mass or less, more preferably 50% by mass or more and 58% by mass or less, and more preferably 55% by mass or more and 56% by mass or less.

Further, the compound represented by the formula (I-8) is preferably a compound selected from the group consisting of compounds represented by the formulae (9.1) to (9.10), and the formula (9.2), the formula (9.4) and the formula (9.7) The compound represented is preferred.

Further, the compound represented by the formula (L) is preferably a compound selected from the compounds represented by the formula (II), for example.

(R ²¹ and R ²² are each independently represented by an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and A ² represents a 1,4-stretched ring. Alkyl or 1,4-phenylene, Q ² represents a single bond, -COO-, -CH ₂ -CH ₂ - or -CF ₂ O-).

The type of the compound which can be combined is not particularly limited, but the plural compound represented by the above formula (II) can be combined in view of the properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, still another embodiment of the present invention has three types. Further, in another embodiment of the present invention, it is four or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (II) is dependent on the solubility at low temperature, the transfer temperature, the electrical reliability, the complex refractive index, the process suitability, the drip mark, and the afterimage. The performance of dielectric anisotropy and the like is appropriately adjusted.

The content of the above compound is, for example, 3 to 50% by mass based on one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, the content is 5 to 50% by mass. Further, in another embodiment of the present invention, the content is 7 to 50% by mass. Further, in another embodiment of the present invention, the content is 10 to 50% by mass. Further, in another embodiment of the present invention, the content is 14 to 50% by mass. Further, in another embodiment of the present invention, the content is 16 to 50% by mass. Further, in another embodiment of the present invention, the content is 20 to 50% by mass. Further, in another embodiment of the present invention, the content is 23 to 50% by mass. Also, in the present invention In other embodiments, the content is 26 to 50% by mass. Further, in another embodiment of the present invention, the content is 30 to 50% by mass. Further, in another embodiment of the present invention, the content is 35 to 50% by mass. Further, in another embodiment of the present invention, the content is 40 to 50% by mass.

Further, the content of the above compound, for example, in one embodiment of the present invention, is from 3 to 50% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is from 3 to 40% by mass. Further, in another embodiment of the present invention, the content is 3 to 35% by mass. Further, in another embodiment of the present invention, the content is 3 to 30% by mass. Further, in another embodiment of the present invention, the content is 3 to 20% by mass. Further, in another embodiment of the present invention, the content is 3 to 15% by mass. Further, in another embodiment of the present invention, the content is 3 to 10% by mass. Further, in another embodiment of the present invention, the content is 3 to 5% by mass.

Further, the compound represented by the formula (II), for example, a compound selected from the group of compounds represented by the formula (II-1) is preferred.

(R ²¹ and R ²² are each independently represented by an alkenyl group having 2 to 5 carbon atoms or an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (II-1) is preferably adjusted in accordance with the performance of low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index, and is preferably 4% by mass or more and 24% by mass or less. Preferably, it is more preferably 8 mass% or more and 18 mass% or less, and more preferably 12 mass% or more and 14 mass% or less.

Further, the compound represented by the formula (II-1) is preferably a compound represented by the formula (10.1) and the formula (10.2), for example.

Further, the compound represented by the formula (II), for example, a compound selected from the group of compounds represented by the formula (II-2) is preferred.

(R ²³ represents an alkenyl group having 2 to 5 carbon atoms, and R ²⁴ represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not particularly limited, but the plural compound represented by the above formula (II-2) can be combined in view of the properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are two or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (II-2) is dependent on the solubility at low temperature, the transfer temperature, the electrical reliability, the complex refractive index, the process suitability, the instillation trace, The performance of the afterimage, dielectric anisotropy, etc. is appropriately adjusted.

The content of the above compound is, for example, 3 to 50% by mass based on one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Or other embodiments of the present invention are the aforementioned contents. It is 5 to 50% by mass. Further, in another embodiment of the present invention, the content is 7 to 50% by mass. Further, in another embodiment of the present invention, the content is 10 to 50% by mass. Further, in another embodiment of the present invention, the content is 14 to 50% by mass. Further, in another embodiment of the present invention, the content is 16 to 50% by mass. Further, in another embodiment of the present invention, the content is 20 to 50% by mass. Further, in another embodiment of the present invention, the content is 23 to 50% by mass. Further, in another embodiment of the present invention, the content is 26 to 50% by mass. Further, in another embodiment of the present invention, the content is 30 to 50% by mass. Further, in another embodiment of the present invention, the content is 35 to 50% by mass. Further, in another embodiment of the present invention, the content is 40 to 50% by mass.

Further, the content of the above compound is, for example, one embodiment of the present invention, and is 3 to 50% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is from 3 to 40% by mass. Further, in another embodiment of the present invention, the content is 3 to 35% by mass. Further, in another embodiment of the present invention, the content is 3 to 30% by mass. Further, in another embodiment of the present invention, the content is 3 to 20% by mass. Further, in another embodiment of the present invention, the content is 3 to 15% by mass. Further, in another embodiment of the present invention, the content is 3 to 10% by mass. Further, in another embodiment of the present invention, the content is 3 to 5% by mass.

Further, the compound represented by the formula (II-2) is preferably a compound represented by the formula (11.1) to the formula (11.3), for example.

The compound represented by the formula (11.1) may be contained, or may contain a compound represented by the formula (11.2), or may contain a compound, depending on the solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. Both the compound represented by the formula (11.1) and the compound represented by the formula (11.2) may contain all of the compounds represented by the formula (11.1) to the formula (11.3). The content of the compound represented by the formula (11.1) or the formula (11.2) is preferably 3% by mass or more and 40% by mass or less based on the total mass of the liquid crystal composition of the present invention, and 5% by mass or more and 35% by mass or less is More preferably, it is more preferably 5 mass% or more and 30 mass% or less, and most preferably 5 mass% or more and 25 mass% or less, and most preferably 5 mass% or more and 20 mass% or less. Further, in the optimum range, for example, 8 mass% or more and 20 mass% or less, 12 mass% or more and 20 mass% or less, 15 mass% or more and 20 mass% or less, 5 mass% or more, 18 mass% or less, and 5 mass% are exemplified. The above 15% by mass or less, 5% by mass or more and 12% by mass or less, 5% by mass or more and 10% by mass or less, and 5% by mass or more and 8% by mass or less.

In addition, the content of the compound represented by the formula (11.2) is preferably 3% by mass or more and 40% by mass or less based on the total mass of the liquid crystal composition of the present invention, and more preferably 3% by mass or more and 35% by mass or less. 3 mass% or more and 30 mass% or less are more preferable, and 3 mass% or more and 25 mass% or less are more preferable, and 3 mass% or more and 20 mass% or less are especially preferable, and 3 mass% or more and 15 mass% or less are preferable. In the optimum range, for example, 3 mass% or more and 12 mass% or less, and 3 mass% or more and 10 mass% are exemplified. 3% by mass or more and 8% by mass or less, 3% by mass or more and 6% by mass or less, 6% by mass or more and 15% by mass or less, 8% by mass or more and 15% by mass or less, 10% by mass or more and 15% by mass or less, and 12% by mass or less The above 15% by mass or less.

When both the compound represented by the formula (11.1) and the compound represented by the formula (11.2) are contained, the total mass of the compounds is 13% by mass or more and 45% by mass based on the total mass of the liquid crystal composition of the present invention. The following is preferable, and it is more preferably 19% by mass or more and 40% by mass or less, and more preferably 24% by mass or more and 35% by mass or less.

Further, the compound represented by the formula (II), for example, a compound selected from the group of compounds represented by the formula (II-3) is preferred.

(R ²⁵ represents an alkyl group having 1 to 5 carbon atoms, and R ²⁴ represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound to be combined is not particularly limited, but it is contained in the plural compound represented by the above formula (II-3) in view of the low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. One to three types are preferred.

The content of the compound represented by the formula (II-3) is dependent on the solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, process suitability, drip mark, afterimage, dielectric anisotropy. Wait for the performance to adjust. For the preferred content, for example, the content of the above compound is from 2 to 45% by mass based on the total mass of the liquid crystal composition of the present invention. For better content, for example, 5 to 45 mass can be exemplified %, 8 to 45 mass%, 11 to 45 mass%, 14 to 45 mass%, 17 to 45 mass%, 20 to 45 mass%, 23 to 45 mass%, 26 to 45 mass%, 29 to 45 mass%, Or 2 to 45 mass%, 2 to 40 mass%, 2 to 35 mass%, 2 to 30 mass%, 2 to 25 mass%, 2 to 20 mass%, 2 to 15 mass%, and 2 to 10 mass%.

Further, the compound represented by the formula (II-3) is preferably a compound represented by the formula (12.1) to the formula (12.3), for example.

The compound represented by the formula (12.1) may be contained in accordance with the properties of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, etc., and may contain a compound represented by the formula (12.2) or a formula (12.1). Both the compound represented by the formula and the compound represented by the formula (12.2). The content of the compound represented by the formula (12.1) or the formula (12.2) is preferably 3% by mass or more and 40% by mass or less based on the total mass of the liquid crystal composition of the present invention, and 5% by mass or more and 40% by mass or less is More preferably, 7 mass% or more and 40 mass% or less are more preferable, and 9 mass% or more and 40 mass% or less are more preferable, and 11 mass% or more and 40 mass% or less are more preferable, and 12 mass% or more and 40 mass% or less are more preferable. 13% by mass or more and 40% by mass or less is more preferable, and 18% by mass or more and 30% by mass or less are more preferable, and 21% by mass or more and 25% by mass or less are particularly preferable. Further, the content of the compound represented by the formula (12.2) is preferably 3% by mass or more and 40% by mass or less, and 5% by mass or more and 40% by mass or less based on the total mass of the liquid crystal composition of the present invention. The following is more preferable, and it is more preferably 8 mass% or more and 40 mass% or less, more preferably 10 mass% or more and 40 mass% or less, more preferably 12 mass% or more and 40 mass% or less, and 15 mass% or more and 40 mass% or less. More preferably, 17% by mass or more and 30% by mass or less are more preferable, and 19% by mass or more and 25% by mass or less are particularly preferable. When both the compound represented by the formula (12.1) and the compound represented by the formula (12.2) are contained, the total mass of the compound of the two is 15% by mass or more and 45 mass based on the total mass of the liquid crystal composition of the present invention. % or less is more preferably 19% by mass or more and 45% by mass or less, more preferably 24% by mass or more and 40% by mass or less, and particularly preferably 30% by mass or more and 35% by mass or less.

In addition, the content of the compound represented by the formula (12.3) is preferably 0.05% by mass or more and 2% by mass or less based on the total mass of the liquid crystal composition of the present invention, and more preferably 0.1% by mass or more and 1% by mass or less. 0.2% by mass or more and 0.5% by mass or less is more preferable. The compound represented by the formula (12.3) may be an optically active compound.

Further, the compound represented by the formula (II-3) is preferably a compound selected from the group consisting of compounds represented by the formula (II-3-1), for example.

(R ²⁵ represents an alkyl group having 1 to 5 carbon atoms, and R ²⁶ represents an alkoxy group having 1 to 4 carbon atoms).

The type of the compound that can be combined is not particularly limited, but the complex properties represented by the above formula (II-3-1) are contained in view of the low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. One to three kinds of the compounds are preferred.

The content of the compound represented by the formula (II-3-1) is preferably adjusted in accordance with the performance of low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index, and is preferably 1% by mass or more and 24% by mass. % or less is preferable, and 4% by mass or more and 18% by mass or less is more preferable, and 8% by mass or more and 14% by mass or less is more preferable.

Further, the compound represented by the formula (II-3-1) is preferably a compound represented by the formula (13.1) to the formula (13.4), and particularly preferably a compound represented by the formula (13.3).

In addition, the compound represented by the formula (II) is preferably a compound selected from the group consisting of compounds represented by the formula (II-4).

(R ²¹ and R ²² are each independently represented by an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

These compounds may be contained in only one type, or may be contained in two or more types. However, it is preferred to suitably combine them in accordance with the performance desired. The type of the compound to be combined is not particularly limited, but it is contained in the plural compound represented by the above formula (II-4) in view of the low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. One type to two types is preferred, and one type to one type is particularly preferred.

The content of the compound represented by the formula (II-4) is preferably 1% by mass or more and 15% by mass or less based on the total mass of the liquid crystal composition of the present invention, and more preferably 2% by mass or more and 15% by mass or less. 3 mass% or more and 15 mass% or less are more preferable, and 4 mass% or more and 12 mass% or less are more preferable, and 5 mass% or more and 7 mass% or less are especially preferable.

Further, the compound represented by the formula (II-4), for example, a compound represented by the formula (14.1) to the formula (14.5) is preferable, and in particular, the compound represented by the formula (14.2) or the formula (14.5) is preferred. .

Further, the compound represented by the formula (L) is preferably a compound selected from the group of compounds represented by the formula (III).

(R ³¹ and R ³² are each independently represented by an alkenyl group having 2 to 5 carbon atoms or an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (III) is in consideration of the solubility or the complex refractive index of the present invention, and the liquid crystal composition of the present invention. The total mass is preferably 3% by mass or more and 25% by mass or less, more preferably 6% by mass or more and 20% by mass or less, and more preferably 8% by mass or more and 15% by mass or less.

Further, the compound represented by the formula (III), for example, a compound represented by the formula (15.1) or the formula (15.2) is preferred, and in particular, the compound represented by the formula (15.1) is preferred.

Further, the compound represented by the formula (III) is preferably a compound selected from the group of compounds represented by the formula (III-1).

(R ³³ represents an alkenyl group having a carbon number of 2 to 5, R ³² each independently represent carbon atoms or an alkyl group having 1 to 5 carbon atoms of the alkoxy group having 1 to 4).

The compound represented by the formula (III-1) is preferably adjusted in accordance with the properties such as solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index, and is preferably 4% by mass or more and 23% by mass or less. Preferably, it is more preferably 6 mass% or more and 18 mass% or less, and more preferably 10 mass% or more and 13 mass% or less.

The compound represented by the formula (III-1), for example, a compound represented by the formula (16.1) or the formula (16.2) is preferred.

Further, the compound represented by the formula (III) is preferably a compound selected from the group of compounds represented by the formula (III-2).

(R ³¹ represents an alkyl group having 1 to 5 carbon atoms, and R ³⁴ represents an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (III-2) is preferably adjusted in accordance with the performance of low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index, and is preferably 4% by mass or more and 23% by mass or less. Preferably, it is more preferably 6 mass% or more and 18 mass% or less, and more preferably 10 mass% or more and 13 mass% or less.

Further, the compound represented by the formula (III-2) is, for example, preferably a compound selected from the group consisting of the compounds represented by the formula (17.1) to the formula (17.3), and particularly the compound represented by the formula (17.3). good.

Further, it is preferred that the compound represented by the formula (L) is selected from the group represented by the formula (IV).

(wherein R ⁴¹ and R ⁴² are each independently represented by an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and X ⁴¹ and X ⁴² are each independently represented by a hydrogen atom or a fluorine atom).

The type of the compound which can be combined is not particularly limited, but a plurality of compounds represented by the above formula (IV) can be combined in view of the properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, there are five types. Further, in another embodiment of the present invention, it is six or more types.

Further, the compound represented by the formula (IV), for example, a compound selected from the group of compounds represented by the formula (IV-1) is preferred.

(wherein R ⁴³ and R ⁴⁴ are each independently represented by an alkyl group having 1 to 5 carbon atoms).

The content of the compound represented by the formula (IV-1) is dependent on the solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, process suitability, dripping marks, afterimage, dielectric anisotropy, and the like. The performance is to be adjusted.

The content of the above compound is, for example, 1 to 40% by mass in one embodiment, based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is 2 to 40% by mass. Further, in another embodiment of the present invention, the content is 4 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 6 to 40. quality%. Further, in another embodiment of the present invention, the content is 8 to 40% by mass. Further, in another embodiment of the present invention, the content is 10 to 40% by mass. Further, in another embodiment of the present invention, the content is from 12 to 40% by mass. Further, in another embodiment of the present invention, the content is 15 to 40% by mass. Further, in another embodiment of the present invention, the content is 18 to 40% by mass. Further, in another embodiment of the present invention, the content is 21 to 40% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is from 1 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is 1% by mass to 30% by mass. Further, in another embodiment of the present invention, the content is 1 to 25% by mass. Further, in another embodiment of the present invention, the content is 1% by mass to 20% by mass. Further, in another embodiment of the present invention, the content is 1% by mass to 15% by mass. Further, in another embodiment of the present invention, the content is 1% by mass to 10% by mass. Further, in another embodiment of the present invention, the content is 1% by mass to 5% by mass. Further, in another embodiment of the present invention, the content is 1% by mass to 4% by mass.

Further, a compound represented by the formula (IV-1), for example, a compound represented by the formula (18.1) to the formula (18.9) is preferred.

The type of the compound which can be combined is not particularly limited, but one to three kinds of the compounds containing these are preferable, and one to four types are more preferable. Further, since the molecular weight distribution of the selected compound is broad and effective for solubility, for example, one of the compounds represented by the formula (18.1) or (18.2) is selected, and the compound represented by the formula (18.4) or (18.5) is selected. In one type, a compound represented by the formula (18.6) or the formula (18.7) is selected, and a compound represented by the formula (18.8) or (18.9) is selected as one type of compound, and these are preferably combined as appropriate. Among them, a compound represented by the formula (18.1), the formula (18.3), the formula (18.4), the formula (18.6), and the formula (18.9) is preferred.

Further, the compound represented by the formula (IV) is preferably a compound selected from the group consisting of compounds represented by the formula (IV-2), for example.

(wherein R ⁴⁵ and R ⁴⁶ are each independently represented by an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, but at least one represents an alkenyl group having 2 to 5 carbon atoms, X ⁴¹ And X ⁴² are each independently represented as a hydrogen atom or a fluorine atom).

The type of the compound which can be combined is not particularly limited, but the plural compound represented by the above formula (IV-2) can be combined in view of the properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index.

The content of the compound represented by the formula (IV-2) is dependent on the solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, process suitability, dripping marks, afterimage, dielectric anisotropy, and the like. The performance is to be adjusted. For example, the content of the above compound is preferably from 0.5 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. For better content, for example, 1 to 40% by mass, 2 to 40% by mass, 3 to 40% by mass, 5 to 40% by mass, 7 to 40% by mass, 9 to 40% by mass, and 12 to 40% can be exemplified. % by mass, 15 to 40% by mass, 20 to 40% by mass, or 1 to 40% by mass, 1 to 30% by mass, 1 to 25% by mass, 1 to 20% by mass, 1 to 15% by mass, 1 to 10% Mass%, 1 to 5% by mass, and 1 to 4% by mass.

Further, the compound represented by the formula (IV-2) is preferably a compound represented by the formula (19.1) to the formula (19.8), and a compound represented by the formula (19.2) is preferred.

The molecular weight distribution of the compound selected as a component of the liquid crystal composition is broad and effective for solubility, and for example, each is selected from the group consisting of the compound represented by the formula (19.1) or (19.2), and is represented by the formula (19.3) or (19.4) One type of the compound to be represented, one type of the compound represented by the formula (19.5) or the formula (19.6), and one type of the compound represented by the formula (19.7) or (19.8), A suitable combination is preferred.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (19.4) is 3% by mass or more based on the total mass of the liquid crystal composition of the present invention in consideration of low-temperature solubility, transfer temperature, electrical reliability, and the like. 25 mass% or less is more preferable, and 5 mass% or more and 20 mass% or less are more preferable, and 5 mass% or more and 15 mass% or less are more preferable, and 7 mass% or more and 10 mass% or less are especially preferable.

Further, the compound represented by the formula (L) is preferably a compound selected from the group represented by the formula (V).

(wherein R ⁵¹ and R ⁵² are each independently represented by 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 each of A ⁵¹ and A ⁵² Independently represented by 1,4-cycloalkylene or 1,4-phenylene, Q ⁵ represents a single bond or -COO-, and X ⁵¹ and X ⁵² are each independently represented as a fluorine atom or a hydrogen atom).

The type of the compound which can be combined is not particularly limited, but the plural compound represented by the above formula (V) can be combined in view of the properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types.

The content of the above compound is, for example, 2 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content is 4 to 40% by mass. Further, in another embodiment of the present invention, the content is 7 to 40% by mass. Further, in another embodiment of the present invention, the content is 10 to 40% by mass. Further, in another embodiment of the present invention, the content is from 12 to 40% by mass. Further, in another embodiment of the present invention, the content is 15 to 40% by mass. Further, in another embodiment of the present invention, the content is 17% to 40% by mass. Further, in another embodiment of the present invention, the content is 18 to 40% by mass. Further, in another embodiment of the present invention, the content is 20 to 40% by mass. Further, in another embodiment of the present invention, the content is 22 to 40% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is from 2 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content of the compound is 2 to 30% by mass. Further, in another embodiment of the present invention, the content of the compound is 2 to 25% by mass. Further, in another embodiment of the present invention, the content of the compound is 2 to 20% by mass. Further, in another embodiment of the present invention, the content of the compound is from 2 to 15% by mass. Further, in another embodiment of the present invention, the content of the compound is 2 to 10% by mass. Further, in another embodiment of the present invention, the content of the compound is 2 to 5% by mass. Further, in another embodiment of the present invention, the content of the compound is from 2 to 4% by mass.

Further, the compound represented by the formula (V) is preferably a compound represented by the formula (V-1).

(wherein R ⁵¹ and R ⁵² are each independently represented by 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 each of X ⁵¹ and X ^52; Independently expressed as a fluorine atom or a hydrogen atom).

Further, the compound represented by the formula (V-1) is preferably a compound represented by the formula (V-1-1).

(wherein R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound represented by the formula (V-1-1) is preferably contained in an amount of 1% by mass or more and 15% by mass or less based on the total mass of the liquid crystal composition of the present invention, and is contained in an amount of 2% by mass or more and 15% by mass or less. More preferably, it is more preferably 3% by mass or more and 10% by mass or less, and particularly preferably 4% by mass or more and 8% by mass or less.

Further, the compound represented by the formula (V-1-1) is preferably a compound represented by the formula (20.1) to the formula (20.4), and a compound represented by the formula (20.2) is preferred.

Further, the compound represented by the formula (V-1) is preferably a compound represented by the formula (V-1-2).

(wherein R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound represented by the formula (V-1-2) is preferably contained in an amount of 1% by mass or more and 15% by mass or less based on the total mass of the liquid crystal composition of the present invention, and is contained in an amount of 2% by mass or more and 15% by mass or less. More preferably, it is more preferably 3% by mass or more and 10% by mass or less, and particularly preferably 4% by mass or more and 8% by mass or less.

Further, the compound represented by the formula (V-1-2) is preferably a compound represented by the formula (21.1) to the formula (21.3), and a compound represented by the formula (21.1) is preferred.

Further, the compound represented by the formula (V-1) is preferably a compound represented by the formula (V-1-3).

(wherein R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound represented by the formula (V-1-3) is preferably contained in an amount of 1% by mass or more and 15% by mass or less based on the total mass of the liquid crystal composition of the present invention, and is contained in an amount of 2% by mass or more and 15% by mass or less. More preferably, it is more preferably 3% by mass or more and 10% by mass or less, and particularly preferably 4% by mass or more and 8% by mass or less.

Further, the compound represented by the formula (V-1-3) is a compound represented by the formula (22.1) to the formula (22.3). The compound represented by the formula (22.1) is preferred.

Further, the compound represented by the formula (V) is preferably a compound represented by the formula (V-2).

(wherein R ⁵¹ and R ⁵² are each independently represented by 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 each of X ⁵¹ and X ^52; Independently expressed as a fluorine atom or a hydrogen atom).

The type of the compound which can be combined is not particularly limited, but the plural compound represented by the above formula (V-2) can be combined in view of the properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are two or more types.

The content of the above compound is, for example, 2 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content of the compound is 4 to 40% by mass. Further, in another embodiment of the present invention, the content of the compound is from 7 to 40% by mass. Further, in another embodiment of the present invention, the content of the compound is from 10 to 40% by mass. Also, in the other aspects of the present invention In the embodiment, the content of the compound is from 12 to 40% by mass. Further, in another embodiment of the present invention, the content of the compound is 15 to 40% by mass. Further, in another embodiment of the present invention, the content of the compound is from 17 to 40% by mass. Further, in another embodiment of the present invention, the content of the compound is from 18 to 40% by mass. Further, in another embodiment of the present invention, the content of the compound is from 20 to 40% by mass. Further, in another embodiment of the present invention, the content of the compound is from 22 to 40% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is from 2 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content of the compound is 2 to 30% by mass. Further, in another embodiment of the present invention, the content of the compound is 2 to 25% by mass. Further, in another embodiment of the present invention, the content of the compound is 2 to 20% by mass. Further, in another embodiment of the present invention, the content of the compound is from 2 to 15% by mass. Further, in another embodiment of the present invention, the content of the compound is 2 to 10% by mass. Further, in another embodiment of the present invention, the content of the compound is 2 to 5% by mass. Further, in another embodiment of the present invention, the content of the compound is from 2 to 4% by mass.

In the case where the liquid crystal composition of the present invention has a high Tni embodiment, it is preferable to make the content of the compound represented by the formula (V-2) to be larger, and the low viscosity embodiment is to be used as the desired one. The less is better.

Further, the compound represented by the formula (V-2) is preferably a compound represented by the formula (V-2-1).

(wherein R ⁵¹ and R ⁵² each independently represent 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).

Further, the compound represented by the formula (V-2-1) is preferably a compound represented by the formula (23.1) to the formula (23.4), and a compound represented by the formula (23.1) or the formula (23.2) is preferred.

Further, the compound represented by the formula (V-2) is preferably a compound represented by the formula (V-2-2).

(wherein R ⁵¹ and R ⁵² each independently represent 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).

Further, the compound represented by the formula (V-2-2) is preferably a compound represented by the formula (24.1) to the formula (24.4), and a compound represented by the formula (24.1) or the formula (24.2) is preferred.

Further, the compound represented by the formula (V) is preferably a compound represented by the formula (V-3).

(wherein R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not particularly limited, but the plural compound represented by the above formula (V-3) can be combined in view of the properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, it is three or more types.

The compound represented by the formula (V-3) is preferably contained in an amount of 2% by mass or more and 16% by mass or less based on the total mass of the liquid crystal composition of the present invention, and more preferably 4% by mass or more and 16% by mass or less. It is more preferably 7 mass% or more and 13 mass% or less, and particularly preferably 8 mass% or more and 11 mass% or less.

Further, the compound represented by the formula (V-3) is preferably a compound represented by the formula (25.1) to the formula (25.3).

The liquid crystal composition of the present invention may further contain one or more kinds of the compounds represented by the formula (VI).

(wherein R ⁶¹ and R ⁶² are each independently represented by a linear alkyl group having 1 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms or a linear alkenyl group having 2 to 10 carbon atoms) .

The type of the compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (VI) is contained in response to the low-temperature solubility, transfer temperature, electrical reliability, complex refractive index and the like. The ~3 species are preferred, and the one to four species are better, and the one to five species are particularly preferred. Further, the ratio of the maximum content is preferably 35 mass% or less, more preferably 25% by mass or less, and still more preferably 15 mass% or less.

The compound represented by the formula (VI), specifically, the compound exemplified below can be suitably used.

The liquid crystal composition of the present invention may further contain one or more kinds of the compounds represented by the formula (VII).

(wherein R ⁷¹ and R ⁷² are each independently represented by a linear alkyl group having 1 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms or a linear alkenyl group having 4 to 10 carbon atoms) .

The type of the compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (VII) is contained in response to the low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The ~3 species are preferred, and the one to four species are better, and the one to five species are particularly preferred. Further, the maximum ratio which can be contained is preferably 35 mass% or less, more preferably 25% by mass or less, and still more preferably 15 mass% or less.

The compound represented by the formula (VII), specifically, the compound exemplified below can be suitably used.

It is also preferred that the liquid crystal composition of the present invention contains any one or more of the compounds represented by the following formula (M).

(wherein, R ^M1 represents an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent -CH ₂ - may independently be -CH=CH-, -C≡C -, -O-, -CO-, -COO- or -OCO-substitution, PM represents 0, 1, 2, 3 or 4, and C ^M1 and C ^M2 are each independently represented as a group selected from the group consisting of: (d) 1,4- cycloalkyl extension (in this group present in one of the -CH ₂ - or of two or more adjacent -CH ₂ - may be substituted with -O- or -S-); and (e) 1,4-phenylene (one of -CH= or two or more non-contiguous -CH= which may be substituted in this group may be substituted with -N=); the above-mentioned group (d), (e) each independently substituted by a cyano group, a fluorine atom or a chlorine atom. K ^M1 and K ^M2 are each independently represented as a single bond, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -OCH ₂ -, - CH ₂ O-, -OCF ₂ -, -CF ₂ O-, -COO-, -OCO- or -C≡C-, PM is 2, 3 or 4 and K ^M1 has a plurality of cases, they may The same or different, PM is 2, 3 or 4 and C ^M2 has a plurality of cases, and they may be the same or different; X ^M1 and X ^M3 are each independently represented as a hydrogen atom, a chlorine atom or a fluorine atom. X ^M2 represents a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, trifluoromethanesulfonic , fluoromethoxy, difluoromethoxy, trifluoromethoxy or 2,2,2-trifluoroethyl. However, the compound represented by the formula (i) and the compound represented by the formula (ii) except).

The type of the compound which can be combined is not particularly limited, but may be used in combination with a plurality of compounds represented by the above formula (M) in view of desired properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. . The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, there are five types. Further, in another embodiment of the present invention, there are six types. Further, in another embodiment of the present invention, there are seven or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (M) is dependent on the solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, process suitability, drip marks, afterimage, The performance of the dielectric anisotropy or the like is appropriately adjusted.

The content of the above compound is, for example, 1 to 95% by mass in one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Further, for example, in another embodiment of the present invention, the content of the compound is from 10 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 20 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 30 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is 40 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 45 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 50 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 55 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 60 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is 65 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is 70 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 75 to 95% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 80 to 95% by mass.

Further, the content of the above compound is, for example, an embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention. It is 1 to 95% by mass. Further, in another embodiment of the present invention, the content of the compound is from 1 to 85% by mass. In still another embodiment of the present invention, the content of the compound is from 1 to 75% by mass. In still another embodiment of the present invention, the content of the compound is from 1 to 65% by mass. In still another embodiment of the present invention, the content of the compound is from 1 to 55% by mass. In still another embodiment of the present invention, the content of the compound is from 1 to 45% by mass. In still another embodiment of the present invention, the content of the compound is from 1 to 35% by mass. In still another embodiment of the present invention, the content of the compound is from 1 to 25% by mass.

In the case where the viscosity of the liquid crystal composition of the present invention is kept low and the reaction rate is fast, it is necessary to lower the lower limit and lower the upper limit. In addition, when the Tni of the liquid crystal composition of the present invention is maintained in a liquid crystal composition having a high value and excellent temperature stability, it is preferable to lower the lower limit and lower the upper limit. Further, in order to maintain the driving voltage at a low value and to increase the dielectric anisotropy, it is preferable to increase the above lower limit value and increase the upper limit value.

R ^{M1 is} a case where the ring to which the bond is bonded is a phenyl group (aromatic), a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 carbon atoms, and The alkenyl group having 4 to 5 carbon atoms is preferred, and the ring to which the bond is bonded is cyclohexane, meme, and In the case of a saturated ring structure such as an alkane, a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 carbon atoms, and a linear carbon number of 2 to 5 are used. Alkenyl is preferred.

In the case where the compound represented by the formula (M) is required to satisfy the chemical stability of the liquid crystal composition, it is not a chlorine atom in the molecule. good. Further, a compound having a chlorine atom in the liquid crystal composition is preferably 5% or less, preferably 3% or less, more preferably 1% or less, and most preferably 0.5% or less, and substantially no one is preferable. The fact that it does not substantially contain means that the liquid crystal composition contains only an unintentional chlorine atom-containing compound which is formed as an impurity in the production of the compound.

The compound represented by the formula (M) is preferably a compound selected from the group of compounds represented by the formula (VIII), for example.

(wherein R ⁸ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and X ⁸¹ to X ⁸⁵ are each independently represented as a hydrogen atom or A fluorine atom, Y ⁸ represents a fluorine atom or -OCF ₃ ).

The type of the compound which can be combined is not particularly limited, but may be used in combination with a plurality of compounds represented by the above formula (VIII) in view of desired properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. . The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, it is three or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (VIII) is required to be compatible with low-temperature solubility, transfer temperature, electrical reliability, complex refractive index, process suitability, drip mark, afterimage, and The performance of electrical anisotropy and the like is appropriately adjusted.

The content of the above compound is, for example, one embodiment of the present invention, relative to the total mass of the liquid crystal composition of the present invention. 2 to 40% by mass. Further, for example, in another embodiment of the present invention, the content of the compound is 4 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 5 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 6 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 7 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 8 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 9 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 10 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 11 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 12 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 14 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is 15 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 21 to 40% by mass. For example, in still another embodiment of the present invention, the content of the compound is 23 to 40% by mass.

In addition, the content of the compound is, for example, 2 to 40% by mass in one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content of the compound is 2 to 30% by mass. In still another embodiment of the present invention, the content of the compound is 2 to 25% by mass. In still another embodiment of the present invention, the content of the compound is from 2 to 21% by mass. According to still another embodiment of the present invention, the content of the aforementioned compound It is 2 to 16% by mass. In still another embodiment of the present invention, the content of the compound is from 2 to 12% by mass. In still another embodiment of the present invention, the content of the compound is from 2 to 8% by mass. In still another embodiment of the present invention, the content of the compound is 2 to 5% by mass.

In the case where the viscosity of the liquid crystal composition of the present invention is kept low and the reaction rate is a fast liquid crystal composition, it is preferable to set the lower limit value to a low value and the upper limit value to a low value. In addition, in the case where the liquid crystal composition of the liquid crystal composition of the present invention is kept at a high value and the temperature stability is excellent, it is preferable to set the lower limit value to a low value and the upper limit value to a low value. Further, in order to maintain the driving voltage at a low value and to increase the dielectric anisotropy, it is preferable to set the lower limit value to a high value and the upper limit value to a high value.

Further, the compound represented by the formula (VIII) is preferably a compound represented by the formula (VIII-1).

(In the formula, R ⁸ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not particularly limited, but a compound of the plural formula represented by the above formula (VIII-1) can be combined in accordance with the desired properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. To use. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are two or more types.

Further, the compound represented by the formula (VIII-1), specifically, the compound represented by the formula (26.1) to the formula (26.4) is preferably a compound represented by the formula (26.1) or the formula (26.2). Preferably, the compound represented by the formula (26.2) is more preferable.

The content of the compound represented by the formula (26.1) is from 1% by mass to 40% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. It is more preferably 1% by mass or more and 30% by mass or less, more preferably 1% by mass or more and 20% by mass or less, more preferably 2% by mass or more and 15% by mass or less, and 2% by mass or more and 10% by mass or less. Preferably, 2% by mass or more and 9% by mass or less are particularly preferred. In a particularly preferable range, for example, 2% by mass or more and 7% by mass or less, 2% by mass or more and 6% by mass or less, 2% by mass or more and 5% by mass or less, 2% by mass or more and 4% by mass or less, and 2% by mass or more can be exemplified. The content is 5% by mass or less, 3% by mass or more and 9% by mass or less, 4% by mass or more and 9% by mass or less, 5% by mass or more and 9% by mass or less, and 6% by mass or more and 9% by mass or less.

The content of the compound represented by the formula (26.2) is 2% by mass or more and 40% by mass or less based on the total mass of the liquid crystal composition of the present invention in consideration of low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. It is more preferably 4% by mass or more and 30% by mass or less, more preferably 4% by mass or more and 20% by mass or less, and particularly preferably 4% by mass or more and 15% by mass or less. In a particularly preferable range, for example, 4% by mass or more and 12% by mass or less, 4% by mass or more and 10% by mass or less, 4% by mass or more and 8% by mass or less, 4% by mass or more and 6% by mass or less, and 6% by mass or more can be exemplified. The mass% or less, the 8% by mass or more and 15% by mass or less, the 10% by mass or more and 15% by mass or less, and 12% by mass or more and 15% by mass or less.

The total content of the compound represented by the formula (26.1) and the compound represented by the formula (26.2) is preferably 5 to 40% by mass, more preferably 10 to 30% by mass, based on the total mass of the liquid crystal composition of the present invention. Good, 10~25% by mass is better, and 10~20% by mass is especially good.

Further, the compound represented by the formula (VIII) is preferably a compound represented by the formula (VIII-2).

(In the formula, R ⁸ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The kind of the compound which can be combined is not particularly limited, but the compound of the plural formula represented by the above formula (VIII-2) can be combined in accordance with the desired properties such as solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. To use. The kind of the compound to be used, for example, as the present invention In one embodiment, it is one type. Or other embodiments of the present invention are of two types. Alternatively, still another embodiment of the present invention is three or more types.

The content of the compound represented by the formula (VIII-2) is preferably 2.5% by mass or more and 25% by mass or less based on the solubility at low temperature, the transfer temperature, the electrical reliability, and the complex refractive index, and is preferably 8% by mass or more. The mass% or less is more preferably 10% by mass or less and 20% by mass or less, more preferably 12% by mass or more and 15% by mass or less.

Further, the compound represented by the formula (VIII-2) is preferably a compound represented by the formula (27.1) to the formula (27.4), and a compound represented by the formula (27.2) is preferred.

Further, the compound represented by the formula (VIII) is preferably a compound represented by the formula (VIII-3).

(In the formula, R ⁸ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not particularly limited, but the compound represented by the above formula (VIII-3) can be combined in accordance with the desired properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. To use. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or other embodiments of the present invention are two or more types.

Further, the compound represented by the formula (VIII-3), specifically, the compound represented by the formula (26.11) to the formula (26.14) is preferably a compound represented by the formula (26.11) or the formula (26.12). Preferably, the compound represented by the formula (26.12) is more preferably.

Further, the compound represented by the formula (M), for example, a compound selected from the group of compounds represented by the formula (IX) is preferred. However, the compound represented by the above formula (i) is excluded.

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and X ⁹¹ and X ⁹² are each independently represented as a hydrogen atom or A fluorine atom, Y ⁹ represents a fluorine atom, a chlorine atom or -OCF ₃ , and U ⁹ represents a single bond, -COO- or -CF ₂ O-).

The type of the compound which can be combined is not particularly limited, but may be used in combination with a plurality of compounds represented by the above formula (IX) in view of desired properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. The type of the compound to be used is, for example, one type of the embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, there are five types. Further, in another embodiment of the present invention, it is six or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (IX) is required to satisfy the low temperature solubility, transfer temperature, electrical reliability, complex refractive index, process suitability, drip mark, afterimage, and The performance of electrical anisotropy and the like is appropriately adjusted.

The content of the above compound is, for example, one embodiment of the present invention, relative to the total mass of the liquid crystal composition of the present invention. 3 to 70% by mass. Further, for example, in another embodiment of the present invention, the content of the compound is 5 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 8 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 10 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 12 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 15 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 17 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 20 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 24 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 28 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 30 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 34 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 39 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 40 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is from 42 to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 45 to 70% by mass.

In addition, the content of the compound is, for example, 3 to 70% by mass in one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Further, in another embodiment of the present invention, the content of the compound is from 3 to 60% by mass. Still other implementations of the invention In the form, the content of the above compound is from 3 to 55% by mass. In still another embodiment of the present invention, the content of the compound is from 3 to 50% by mass. In still another embodiment of the present invention, the content of the compound is from 3 to 45% by mass. In still another embodiment of the present invention, the content of the compound is from 3 to 40% by mass. In still another embodiment of the present invention, the content of the compound is from 3 to 35% by mass. In still another embodiment of the present invention, the content of the compound is from 3 to 30% by mass. According to still another embodiment of the present invention, it is 25% by mass. In still another embodiment of the present invention, the content of the compound is from 3 to 20% by mass. In still another embodiment of the present invention, the content of the compound is from 3 to 15% by mass. In still another embodiment of the present invention, the content of the compound is from 3 to 10% by mass.

When it is necessary to maintain the viscosity of the liquid crystal composition of the present invention at a low value and a rapid reaction rate, it is preferable to set the lower limit value to a low value and the upper limit value to a low value. In addition, when the Tni of the liquid crystal composition of the present invention is kept at a high value and a liquid crystal composition in which residual image is hard to occur is required, it is preferable to set the lower limit value to a low value and the upper limit value to a low value. . Further, in order to maintain the dielectric constant at a low value while maintaining the driving voltage, it is preferable to set the lower limit value to a high value and an upper limit value.

Further, the compound represented by the formula (IX) is preferably a compound represented by the formula (IX-1). However, the compound represented by the above formula (i) is excluded.

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; X ⁹² represents a hydrogen atom or a fluorine atom, and Y ⁹ represents Fluorine atom or -OCF ₃ ).

The type of the compound which can be combined is not particularly limited, but the plural compound represented by the above formula (IX-1) can be combined in accordance with the desired properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. use. The type of the compound to be used is, for example, one type as one embodiment of the present invention. Or other embodiments of the present invention are of two types. Further, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of the present invention, it is four or more types.

Further, the compound represented by the formula (IX-1) is preferably a compound represented by the formula (IX-1-2).

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound that can be combined is not limited, but one of the plural compounds represented by the above formula (IX-1-2) is combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, and the like. The 3 types are preferred, and the combination of 1 to 4 types is more preferable.

The content of the compound represented by the formula (IX-1-2) is considered in view of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The total mass of the liquid crystal composition is preferably 1% by mass or more and 30% by mass or less, more preferably 5% by mass or more and 30% by mass or less, more preferably 8% by mass or more and 30% by mass or less, and still more preferably 10% by mass or more. The mass % or less is more preferably, and 14% by mass or more and 22% by mass or less are more preferably, and 16% by mass or more and 20% by mass or less are particularly preferable.

Further, the compound represented by the formula (IX-1-2) is preferably a compound represented by the formula (29.1) to the formula (29.4), and a compound represented by the formula (29.2) or the formula (29.4) is preferred. .

Further, the compound represented by the formula (IX) is preferably a compound represented by the formula (IX-2).

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and X ⁹¹ and X ⁹² are each independently represented by a hydrogen atom or A fluorine atom, Y ⁹ represents a fluorine atom, a chlorine atom or -OCF ₃ ).

The type of the compound that can be combined is not limited, but the compound of the above formula (IX-2) can be used in each embodiment in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, and the like. Suitable for combination to use. For example, one embodiment of the present invention is one type, and two types in other embodiments, three types in other embodiments, four types in still another embodiment, and five types in still another embodiment. In still another embodiment, the combination is six or more types.

Further, the compound represented by the formula (IX-2) is preferably a compound represented by the formula (IX-2-1).

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound that can be combined is not limited, but one of the plural compounds represented by the above formula (IX-2-1) is combined with one of the above-mentioned compounds (IX-2-1) in consideration of solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. 3 types are preferred.

The content of the compound represented by the formula (IX-2-1) is preferably an upper limit value and a lower limit value in each embodiment in consideration of characteristics such as solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. .

For example, in one embodiment of the present invention, the content of the compound is from 1 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. In other embodiments, the content of the compound is 2 to 40% by mass, and in other embodiments, the content of the compound is 4 to 40%. In other embodiments, the content of the compound is 10 to 40% by mass, and in still other embodiments, the content of the compound is 14 to 40% by mass, and in still other embodiments, the content of the compound is 16~ 40% by mass, and in still other embodiments, the content of the above compound is 21 to 40% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is from 1 to 40% by mass based on the total mass, and in other embodiments, the content of the compound is from 1 to 35% by mass, and is further carried out. In the embodiment, the content of the compound is 1 to 30% by mass, and in still another embodiment, the content of the compound is 1 to 25% by mass, and in still another embodiment, the content of the compound is 1 to 22% by mass. In still another embodiment, the content of the compound is 1 to 20% by mass, and in still another embodiment, the content of the compound is 1 to 10% by mass, and in still other embodiments, the content of the compound is 1 to 1%. In another embodiment, the content of the compound is 1 to 5% by mass.

Further, the compound represented by the formula (IX-2-1) is preferably a compound represented by the formula (30.1) to the formula (30.4), and a compound represented by the formula (30.1) to the formula (30.2) is preferred. .

Further, the compound represented by the formula (IX-2) is preferably a compound represented by the formula (IX-2-2).

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound that can be combined is not limited, but one compound of the plural compound represented by the above formula (IX-2-2) is blocked in consideration of low-temperature solubility, transfer temperature, electrical reliability, complex refractive index, and the like. The 3 types are preferred, and the combination of 1 to 4 types is more preferable.

The content of the compound represented by the formula (IX-2-2) has an upper limit and a lower limit in each embodiment in consideration of characteristics such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. For example, in one embodiment of the present invention, the content of the compound is from 1 to 40% by mass based on the total mass of the liquid crystal composition of the present invention, and in other embodiments, the content of the compound is from 2 to 40% by mass. In still another embodiment, the content of the compound is 4 to 40% by mass, and in still another embodiment, the content of the compound is 10 to 40% by mass, and in still other embodiments, the content of the compound is In another embodiment, the content of the compound is 16 to 40% by mass, and in still another embodiment, the content of the compound is 21 to 40% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is from 1 to 40% by mass based on the total mass, and in other embodiments, the content of the compound is from 1 to 35% by mass, and further In the embodiment, the content of the compound is 1 to 30% by mass, and in still another embodiment, the content of the compound is 1 to 25% by mass, and in still other embodiments, the content of the compound is 1 to 22% by mass. In still another embodiment, the content of the compound is 1 to 15% by mass, and in still another embodiment, the content of the compound is 1 to 12% by mass, and in still other embodiments, the content of the compound is 1 In another embodiment, the content of the compound is from 1 to 4% by mass.

Further, the compound represented by the formula (IX-2-2) is preferably a compound represented by the formula (31.1) to the formula (31.4), and the compound represented by the formula (31.2) to the formula (31.4) is more preferable. The compound represented by the formula (31.2) is more preferably.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (31.2) is preferably 1% by mass or more and 35% by mass or less based on the total mass of the liquid crystal composition of the present invention, and 2% by mass or more and 25% by mass. % or less is more preferable, and 3 mass% or more and 20 mass% or less are more preferable, and 3 mass% or more and 15 mass% or less are especially preferable, and 3 mass% or more and 10 mass% or less are preferable. In the optimum range, for example, 3 mass% or more and 8 mass% or less, 3% by mass or more and 6% by mass or less, 3% by mass or more and 4% by mass or less, 4% by mass or more and 10% by mass or less, and 6 mass% or more and 10 masses can be exemplified. % or less, 8 mass% or more and 10 mass% or less.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (31.4) is preferably 1% by mass or more and 35% by mass or less based on the total mass of the liquid crystal composition of the present invention, and 1% by mass or more and 25% by mass. % or less is more preferably 1% by mass or more and 15% by mass or less, more preferably 2% by mass or more and 10% by mass or less, more preferably 3% by mass or more and 8% by mass or less, and more preferably 3% by mass or more and 6% by mass or less. More preferably, 3 mass% or more and 5 mass% or less are particularly preferable.

Further, the compound represented by the formula (IX-2) is preferably a compound represented by the formula (IX-2-3).

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound that can be combined is not limited, but one of the plural compounds represented by the above formula (IX-2-3) is combined with one of the plural compounds represented by the above formula (IX-2-3) in consideration of solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. 2 types are preferred.

The content of the compound represented by the formula (IX-2-3) is from 1% by mass to 30% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and it is more preferably 3 mass% or more and 20 mass% or less, more preferably 6 mass% or more and 15 mass% or less, and still more preferably 8 mass% or more and 10 mass% or less.

Further, the compound represented by the formula (IX-2-3) is preferably a compound represented by the formula (32.1) to the formula (32.4), and the compound represented by the formula (32.2) and/or the formula (32.4) is Preferably.

Further, the compound represented by the formula (IX-2) is preferably a compound represented by the formula (IX-2-4).

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (IX-2-4) is 1% by mass or more and 30% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and it is more preferably 3 mass% or more and 20 mass% or less, more preferably 6 mass% or more and 15 mass% or less, and particularly preferably 8 mass% or more and 10 mass% or less.

Further, the compound represented by the formula (IX-2-4) is preferably a compound represented by the formula (33.1) to the formula (33.5), and the compound represented by the formula (33.1) and/or the formula (33.3) is Preferably.

Further, the compound represented by the formula (IX-2) is preferably a compound represented by the formula (IX-2-5).

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not limited, but the complex compound represented by the above formula (IX-2-5) can be used in each embodiment in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index and the like. Use them in a suitable combination. For example, one embodiment of the present invention is one type, and two types in other embodiments, three types in other embodiments, and four or more types in other embodiments.

The content of the compound represented by the formula (IX-2-5) can be considered as low temperature solubility, transfer temperature, electrical reliability, complex refractive index, etc., and in each embodiment, there are upper and lower limits. . For example, in one embodiment of the present invention, the content of the compound is 4 to 45% by mass based on the total mass of the liquid crystal composition of the present invention, and is in other embodiments. The content of the compound is from 8 to 45% by mass, and in other embodiments, the content of the compound is from 12 to 45% by mass, and in still other embodiments, the content of the compound is from 21 to 45% by mass. In still another embodiment, the content of the compound is 30 to 45% by mass, and in still another embodiment, the content of the compound is 31 to 45% by mass, and in still other embodiments, the content of the compound is It is 34 to 45 mass%. Further, for example, in one embodiment of the present invention, the content of the compound is 4 to 45% by mass based on the total mass, and in another embodiment, the content of the compound is 4 to 40% by mass. In the embodiment, the content of the compound is 4 to 35% by mass, and in still another embodiment, the content of the compound is 4 to 32% by mass, and in still another embodiment, the content of the compound is 4 to 22% by mass. In still another embodiment, the content of the compound is 4 to 13% by mass, and in still another embodiment, the content of the compound is 4 to 9% by mass, and in still other embodiments, the content of the compound is 4 to 4%. In another embodiment, the content of the compound is 4 to 5% by mass.

When it is necessary to maintain the viscosity of the liquid crystal composition of the present invention at a low value and a rapid reaction rate, it is preferable to set the lower limit value to a low value and the upper limit value to a low value. In addition, when the liquid crystal composition of the liquid crystal composition of the present invention is kept at a high value and the liquid crystal composition in which residual image is hard to occur is necessary, the lower limit value is set to a low value, and the upper limit value is set to a low value. good. Further, in order to maintain the driving voltage at a low value and to increase the dielectric anisotropy, it is preferable to set the lower limit value to a high value and the upper limit value to a high value.

Further, the compound represented by the formula (IX-2-5) is preferably a compound represented by the formula (34.1) to the formula (34.5), and the formula (34.1), the formula (34.2), the formula (34.3) and/or Or a compound represented by the formula (34.5) is more preferable.

Further, the compound represented by the formula (IX) is preferably a compound represented by the formula (IX-3).

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and X ⁹¹ and X ⁹² are each independently represented by a hydrogen atom or A fluorine atom, Y ⁹ represents a fluorine atom, a chlorine atom or -OCF ₃ ).

Further, the compound represented by the formula (IX-3) is preferably a compound represented by the formula (IX-3-1).

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not limited, but one of the plural compounds represented by the above formula (IX-3-1) is combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index and the like. Up to 2 types are preferred.

The content of the compound represented by the formula (IX-3-1) is 3% by mass or more and 30% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and 7 mass% or more and 30 mass% or less are more preferable, and 13 mass% or more and 20 mass% or less are more preferable, and 15 mass% or more and 18 mass% or less are especially preferable.

Further, the compound represented by the formula (IX-3-1) is preferably a compound represented by the formula (35.1) to the formula (35.4), and the compound represented by the formula (35.1) and/or the formula (35.2) is Preferably.

Further, the compound represented by the formula (M) is preferably a compound represented by the formula (X). However, the compound represented by the above formula (i) and the compound represented by the formula (ii) are excluded.

(wherein, X ¹⁰¹ to X ¹⁰⁴ are each independently represented by a fluorine atom or a hydrogen atom, Y ¹⁰ represents a fluorine atom, a chlorine atom, -OCF ₃ , Q ¹⁰ represents a single bond or -CF ₂ O-, and R ¹⁰ represents a carbon atom An alkyl group of 1 to 5, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and A ¹⁰¹ and A ¹⁰² are each independently represented by a 1,4-cycloalkylene group, 1,4- Phenyl or , ,or The hydrogen atom on the 1,4-phenylene group may be substituted by a fluorine atom).

The compound that can be combined is not particularly limited, but considering the solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, etc., The plurality of compounds represented by the above formula (X) are appropriately combined in each embodiment. For example, one embodiment of the present invention is one type. Further, in another embodiment of the present invention, there are two types. In addition, in other embodiments, there are three types. In the other embodiments, there are four types. Further, in other embodiments, it is five or more types.

The content of the compound represented by the formula (X) is an upper limit and a lower limit in each embodiment in consideration of characteristics such as solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. For example, in one embodiment of the present invention, the content of the compound is 2 to 45% by mass based on the total mass of the liquid crystal composition of the present invention, and in other embodiments, the content of the compound is 3 to 45% by mass. In other embodiments, the content of the compound is 6 to 45% by mass, and in still other embodiments, the content of the compound is 8 to 45% by mass, and in still other embodiments, the content of the compound is 9 In another embodiment, the content of the compound is from 11 to 45% by mass, and in still another embodiment, the content of the compound is from 12 to 45% by mass. In still another embodiment, the content of the compound is from 18 to 45% by mass. In still another embodiment, the content of the compound is from 19 to 45% by mass. In still another embodiment, the content of the compound is from 23 to 45% by mass. In still another embodiment, the content of the compound is from 25 to 45% by mass. Further, for example, in one embodiment of the present invention, the content of the compound is 2 to 45% by mass based on the total mass, and in another embodiment, the content of the compound is 2 to 35% by mass, and further implementation is carried out. In the form, the content of the compound is 2 to 30% by mass, and in still other embodiments, the content of the compound is 2 to 25 In other embodiments, the content of the compound is 2 to 20% by mass, and in still another embodiment, the content of the compound is 2 to 13% by mass, and in still other embodiments, the content of the compound is In another embodiment, the content of the compound is 2 to 6% by mass, and in still another embodiment, the content of the compound is 2 to 3% by mass.

When it is necessary to maintain the viscosity of the liquid crystal composition of the present invention at a low value and a rapid reaction rate, it is preferable to set the lower limit value to a low value and the upper limit value to a low value. Further, in the case where the liquid crystal composition in which image sticking is hard to occur is necessary, it is preferable to set the lower limit value to a low value and the upper limit value to a low value. Further, in order to maintain the dielectric constant at a low value and to increase the dielectric anisotropy, it is preferable to set the lower limit value to a high value and the upper limit value to a high value.

The compound represented by the formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-1).

(wherein, X ¹⁰¹ to X ¹⁰³ are each independently represented by a fluorine atom or a hydrogen atom, and R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkane having 1 to 4 carbon atoms. Oxy).

The compound which can be combined is not particularly limited, but a compound of the plural formula represented by the above formula (X-1) can be added to each embodiment in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index and the like. Suitable combination. For example, one embodiment of the present invention is one type. Further, in another embodiment of the present invention, there are two types. In other embodiments, there are three types. Further, in other embodiments, there are four types. Further, in other embodiments, it is five or more types.

The content of the compound represented by the formula (X-1) is an upper limit and a lower limit in each embodiment in consideration of characteristics such as solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. For example, in one embodiment of the present invention, the content of the compound is from 2 to 40% by mass based on the total mass of the liquid crystal composition of the present invention, and in other embodiments, the content of the compound is from 3 to 40% by mass. In still another embodiment, the content of the compound is 5 to 40% by mass, and in still another embodiment, the content of the compound is 6 to 40% by mass, and in still other embodiments, the content of the compound is In another embodiment, the content of the compound is from 8 to 40% by mass, and in still another embodiment, the content of the compound is from 9 to 40% by mass. In still another embodiment, the content of the compound is from 13 to 40% by mass. In still another embodiment, the content of the compound is from 18 to 40% by mass. In still another embodiment, the content of the compound is from 23 to 40% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is 2 to 40% by mass based on the total mass, and in another embodiment, the content of the compound is 2 to 30% by mass, and further implementation is carried out. In the embodiment, the content of the compound is 2 to 25% by mass, and in still another embodiment, the content of the compound is 2 to 20% by mass, and in still another embodiment, the content of the compound is 2 to 15% by mass. In still another embodiment, the content of the compound is 2 to 10 In still another embodiment, the content of the compound is 2 to 6% by mass, and in still another embodiment, the content of the compound is 2 to 4% by mass.

In addition, the compound represented by the formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-1-1).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but the complex compound represented by the above formula (X-1-1) can be used in each embodiment in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index and the like. Combine them as appropriate. For example, one embodiment of the present invention is one type. Further, in another embodiment of the present invention, there are two types. In other embodiments, there are three types. Further, in other embodiments, it is four or more types.

The content of the compound represented by the formula (X-1-1) has properties such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index, and has an upper limit and a lower limit in each embodiment. For example, in one embodiment of the present invention, the content of the compound is from 3 to 30% by mass based on the total mass of the liquid crystal composition of the present invention, and in other embodiments, the content of the compound is from 4 to 30% by mass. In other embodiments, the content of the compound is 6 to 30% by mass, and in still other embodiments, the content of the compound is 9 to 30% by mass, and further In other embodiments, the content of the compound is 12 to 30% by mass, and in other embodiments, the content of the compound is 15 to 30% by mass, and in other embodiments, the content of the compound is 18~ 30% by mass. In still another embodiment, the content of the compound is from 21 to 30% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is from 3 to 30% by mass based on the total mass, and in other embodiments, the content of the compound is from 3 to 20% by mass, and is further carried out. In the form, the content of the compound is 3 to 13% by mass, and in still another embodiment, the content of the compound is 3 to 10% by mass, and in still another embodiment, the content of the compound is 3 to 7% by mass.

Further, the compound represented by the formula (X-1-1) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (36.1) to the formula (36.4) is preferable, and contains A compound represented by the formula (36.1) and/or the formula (36.2) is preferred.

In addition, the compound represented by the formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-1-2).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (X-1-2) is preferably 1% by mass or more, more preferably 2% by mass or more, and more preferably 6% by mass or more based on the total mass of the liquid crystal composition of the present invention. Better. Further, in consideration of low-temperature solubility, transfer temperature, electrical reliability, and the like, the maximum ratio is preferably 20% by mass or less, more preferably 16% by mass or less, more preferably 12% by mass or less, and most preferably 10% by mass or less. .

Further, the compound represented by the formula (X-1-2) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (37.1) to the formula (37.4) is preferable, and contains The compound represented by the formula (37.2) is preferred.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (37.2) is 1% by mass or more based on the total mass of the liquid crystal composition of the present invention in consideration of low-temperature solubility, transfer temperature, electrical reliability, and the like. 20% by mass or less is more preferable, 2% by mass or more and 15% by mass or less is more preferable, and 3% by mass or more and 10% by mass or less are more preferable, and 3% by mass or more and 6% by mass or less are particularly preferable.

In addition, the compound represented by the formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-1-3).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (X-1-3) is combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, and the like. More than the above types are preferred.

The content of the compound represented by the formula (X-1-3) is preferably 1% by mass or more based on the total mass of the liquid crystal composition of the present invention. 2% by mass or more is more preferable, and 6% by mass or more is more preferable. Further, in consideration of low-temperature solubility, transfer temperature, electrical reliability, and the like, the maximum ratio is preferably 20% by mass or less, more preferably 16% by mass or less, more preferably 12% by mass or less, and 10% by mass or less. good.

Further, the compound represented by the formula (X-1-3) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (38.1) to the formula (38.4) is preferable, and contains The compound represented by the formula (38.2) is preferred.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (38.2) is preferably 1% by mass or more and 35% by mass or less based on the total mass of the liquid crystal composition of the present invention, and 2% by mass and 25% by mass. The following is more preferable, and 3 mass% or more and 20 mass% or less are more preferable, and 3 mass% or more and 15 mass% or less are more preferable, and 3 mass% or more and 10 mass% or less are more preferable, and 3 mass% or more and 8 mass% or less are more preferable. More preferably, 4% by mass or more and 5% by mass or less are particularly preferable.

The compound represented by the formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-2).

(wherein, X ¹⁰² to X ¹⁰³ are each independently represented by a fluorine atom or a hydrogen atom, Y ¹⁰ represents a fluorine atom, a chlorine atom, -OCF ₃ , and R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, and 2 to 2 carbon atoms; 5 alkenyl or alkoxy having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, and one type to two or more types of the plurality of compounds represented by the above formula (X-2) can be combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. It is better.

In addition, the compound represented by the formula (X-2) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-2-1).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (X-2-1) is combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, and the like. It is preferable to use a type or more, and it is more preferable to combine 1 type or more types.

The content of the compound represented by the formula (X-2-1) is 3% by mass or more and 20% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and it is more preferably 6 mass% or more and 16 mass% or less, more preferably 9 mass% or more and 12 mass% or less, and particularly preferably 9 mass% or more and 10 mass% or less.

Further, the compound represented by the formula (X-2-1) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (39.1) to the formula (39.4) is preferable, and The compound represented by the formula (39.2) is preferred.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (39.2) is preferably 1% by mass or more and 35% by mass or less based on the total mass of the liquid crystal composition of the present invention, and 2% by mass and 25% by mass. The following is more preferable, and 3 mass% or more and 20 mass% or less are more preferable, and 3 mass% or more and 15 mass% or less are more preferable, and 3 mass% or more and 10 mass% or less are more preferable. More preferably, it is more preferably 4% by mass or more and 8% by mass or less, and particularly preferably 4% by mass or more and 6% by mass or less.

In addition, the compound represented by the formula (X-2) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-2-2).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (X-2-2) is combined with the low temperature solubility, the transfer temperature, the electrical reliability, the complex refractive index, and the like. More than the above types are preferred.

The content of the compound represented by the formula (X-2-2) is 3% by mass or more and 20% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and it is more preferably 6 mass% or more and 16 mass% or less, more preferably 9 mass% or more and 12 mass% or less, and particularly preferably 9 mass% or more and 10 mass% or less.

Further, the compound represented by the formula (X-2-2) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (40.1) to the formula (40.4) is preferable, and The compound represented by the formula (40.2) is preferred.

Further, the compound represented by the formula (X) is preferably a compound represented by the formula (X-3).

(wherein, X ¹⁰² to X ¹⁰³ are each independently represented by a fluorine atom or a hydrogen atom, and R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkane having 1 to 4 carbon atoms. Oxy).

The compound which can be combined is not particularly limited, and one type to two or more types of the plurality of compounds represented by the above formula (X-3) are combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. It is better.

In addition, the compound represented by the formula (X-3) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-3-1).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (X-3-1) is combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, and the like. More than the above types are preferred.

The content of the compound represented by the formula (X-3-1) is preferably 1% by mass or more, more preferably 2% by mass or more, and more preferably 3% by mass or more based on the total mass of the liquid crystal composition of the present invention. Better. Further, in consideration of low-temperature solubility, transfer temperature, electrical reliability, and the like, the maximum ratio is preferably 10% by mass or less, more preferably 8% by mass or less, more preferably 6% by mass or less, and most preferably 4% by mass or less. .

Further, the compound represented by the formula (X-3-1) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (41.1) to the formula (41.4) is preferable, and contains The compound represented by the formula (41.2) is preferred.

Further, the compound represented by the formula (X) is preferably a compound represented by the formula (X-4).

(wherein X ¹⁰² represents a fluorine atom or a hydrogen atom, and R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, and one type to two or more types of the plurality of compounds represented by the above formula (X-4) are combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. Preferably, it is more preferable to combine 1 to 3 or more types.

In addition, the compound represented by the formula (X-4) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-4-1).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (X-4-1) is combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, and the like. It is preferable to use a type or more, and it is more preferable to combine 1 type or more types.

The content of the compound represented by the formula (X-4-1) is 2% by mass or more and 20% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and it is more preferably 5 mass% or more and 17 mass% or less, more preferably 10 mass% or more and 15 mass% or less, and more preferably 10 mass% or more and 13 mass% or less.

Further, the compound represented by the formula (X-4-1) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (42.1) to the formula (42.4) is preferable, and the formula thereof is contained therein. The compound represented by (42.3) is preferred.

Further, the compound represented by the formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-4-2).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (X-4-2) is combined with the low temperature solubility, transfer temperature, electrical reliability, complex refractive index and the like. It is preferable to use a type or more, and it is more preferable to combine 1 type or more types.

The content of the compound represented by the formula (X-4-2) is 2% by mass or more and 20% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and it is more preferably 5 mass% or more and 17 mass% or less, more preferably 10 mass% or more and 15 mass% or less, and more preferably 10 mass% or more and 13 mass% or less.

Further, the compound represented by the formula (X-4-2) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (42.11) to the formula (42.14) is preferable, and the formula is contained therein. The compound represented by (42.13) or formula (42.14) is more preferred.

Further, the compound represented by the formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-4-3).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (X-4-3) is combined with the low temperature solubility, transfer temperature, electrical reliability, complex refractive index, and the like. It is preferable to use a type or more, and it is more preferable to combine 1 type or more types.

The content of the compound represented by the formula (X-4-3) is 2% by mass or more and 20% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and it is more preferably 5 mass% or more and 17 mass% or less, more preferably 10 mass% or more and 15 mass% or less, and more preferably 10 mass% or more and 13 mass% or less.

Further, the compound represented by the formula (X-4-3) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (42.21) to the formula (42.24) is preferable, and the formula thereof is contained therein. The compound represented by (42.22) is more preferred.

Further, the compound represented by the formula (X) is preferably a compound represented by the formula (X-5).

(wherein X ¹⁰² represents a fluorine atom or a hydrogen atom, and R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, and one or more of the plural compounds represented by the above formula (X-5) are combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. Preferably, it is more preferable to combine 1 to 3 or more types.

In addition, the compound represented by the formula (X-5) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (X-5-1).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but one of the plural compounds represented by the above formula (X-5-1) is combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, and the like. It is preferable to use a type or more, and it is more preferable to combine 1 type or more types.

Further, the compound represented by the formula (X-5-1) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (43.1) to the formula (43.4) is preferable, and the formula is contained therein. The compound represented by (43.2) is preferred.

Further, the liquid crystal compound of the present invention may contain a compound represented by the formula (X'-7) similar to the compound represented by the above formula (X).

(wherein R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but one to two kinds of the plural compounds represented by the above formula (X'-7) are combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index and the like. The above is preferred.

The content of the compound represented by the formula (X'-7) is an upper limit and a lower limit in each embodiment in consideration of characteristics such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index.

For example, in one embodiment of the present invention, the content of the compound is 4 to 30% by mass based on the total mass of the liquid crystal composition of the present invention, and in other embodiments, the content of the compound is 5 to 30% by mass. In still another embodiment, the content of the compound is 6 to 30% by mass, and in still another embodiment, the content of the compound is 8 to 30% by mass, and in still other embodiments, the content of the compound is 9 to 30% by mass, and in still other embodiments, the aforementioned compound The content is 11 to 30% by mass, and in still another embodiment, the content of the compound is 14 to 30% by mass. In still another embodiment, the content of the compound is from 18 to 30% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is 4 to 30% by mass based on the total mass, and in another embodiment, the content of the compound is 4 to 20% by mass, and further implementation is carried out. In the form, the content of the compound is 4 to 13% by mass, and in still another embodiment, the content of the compound is 4 to 10% by mass, and in still another embodiment, the content of the compound is 4 to 7% by mass.

Further, the compound represented by the formula (X'-7) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (44.11) to the formula (44.14) is preferable, and the formula ( 44.13) The compound represented is more preferred.

Further, the compound represented by the formula (X) is preferably a compound selected from the group represented by the formula (XI).

(wherein, X ¹¹¹ to X ¹¹⁷ are each independently represented by a fluorine atom or a hydrogen atom, and at least one of X ¹¹¹ to X ¹¹⁷ represents a fluorine atom, and R ¹¹⁰ represents an alkyl group having 1 to 5 carbon atoms and 2 to 2 carbon atoms; An alkenyl group of 5 or an alkoxy group having 1 to 4 carbon atoms, and Y ¹¹ represents a fluorine atom or -OCF ₃ ).

The compound which can be combined is not particularly limited, but one or more of the plural compounds represented by the above formula (XI) are combined in consideration of low-temperature solubility, transfer temperature, electrical reliability, complex refractive index, and the like. good.

The content of the compound represented by the formula (XI) is an upper limit and a lower limit in each embodiment in consideration of characteristics such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. For example, in one embodiment of the present invention, the content of the compound is 2 to 30% by mass based on the total mass of the liquid crystal composition of the present invention, and in other embodiments, the content of the compound is 4 to 30% by mass. In still another embodiment, the content of the compound is 5 to 30% by mass, and in still another embodiment, the content of the compound is 7 to 30% by mass, and in still other embodiments, the content of the compound is In another embodiment, the content of the compound is 10 to 30% by mass, and in still another embodiment, the content of the compound is 12 to 30% by mass. In still another embodiment, the content of the compound is from 13 to 30% by mass. In still other embodiments, the content of the aforementioned compound is 15~30% by mass. In still another embodiment, the content of the compound is from 18 to 30% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is 2 to 30% by mass based on the total mass, and in another embodiment, the content of the compound is 2 to 25% by mass, and further implementation is carried out. In the embodiment, the content of the compound is 2 to 20% by mass, and in still another embodiment, the content of the compound is 2 to 15% by mass, and in still another embodiment, the content of the compound is 2 to 10% by mass. In still another embodiment, the content of the compound is from 2 to 5% by mass.

When the liquid crystal composition of the present invention is used for a liquid crystal display device having a small cell gap, it is suitable to form a plurality of compounds represented by the general formula (XI). In the case of a liquid crystal display element having a small driving voltage, it is suitable to provide a plurality of compounds represented by the general formula (XI). Further, in the case of a liquid crystal display device used in a low-temperature environment, it is suitable to form a small amount of the compound represented by the general formula (XI). In the case of a liquid crystal composition of a liquid crystal display element having a fast reaction rate, it is suitable to form a small amount of the compound represented by the general formula (XI).

Further, the compound represented by the formula (XI) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (XI-1).

(wherein R ¹¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but the complex compound represented by the above formula (XI-1) can be appropriately combined in each embodiment in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index and the like. . For example, one embodiment of the present invention is one type, and two types in other embodiments, and three or more types in other embodiments.

The content of the compound represented by the formula (XI-1) is 1% by mass or more and 20% by mass or less based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. Preferably, it is more preferably 3 mass% or more and 20 mass% or less, more preferably 4 mass% or more and 20 mass% or less, more preferably 6 mass% or more and 15 mass% or less, and even more preferably 9 mass% or more and 12 mass% or less. .

Further, the compound represented by the formula (XI-1) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (45.1) to the formula (45.4) is preferable, and the formula (45.2) is contained therein. The compound represented by the formula (45.4) is preferred, and the compound represented by the formula (45.2) is more preferred.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (45.2) is 1% by mass or more based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. 25 mass% or less is preferable, 3 mass% or more and 20 mass% or less are more preferable, and 3 mass% or more and 15 mass% or less are more preferable, and 3 mass% or more and 10 mass% or less are especially preferable. In a particularly preferable range, for example, 3 mass% or more and 10 mass% or less, 3% by mass or more and 8% by mass or less, 3% by mass or more and 6% by mass or less, 3% by mass or more and 4% by mass or less, and 4% by mass or more, and 10% by mass or more may be exemplified. It is 5% by mass or less, 6% by mass or more and 10% by mass or less, and 8% by mass or more and 10% by mass or less.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (45.3) is 1% by mass or more based on the total mass of the liquid crystal composition of the present invention in consideration of low-temperature solubility, transfer temperature, electrical reliability, and the like. 25 mass% or less is preferable, 3 mass% or more and 20 mass% or less are more preferable, and 3 mass% or more and 15 mass% or less are more preferable, and 3 mass% or more and 10 mass% or less are especially preferable. In a particularly preferable range, for example, 3 mass% or more and 10 mass% or less, 3% by mass or more and 8% by mass or less, 3% by mass or more and 6% by mass or less, 3% by mass or more and 4% by mass or less, and 4% by mass or more, and 10% by mass or more may be exemplified. It is 5% by mass or less, 6% by mass or more and 10% by mass or less, and 8% by mass or more and 10% by mass or less.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (45.4) is considered to be 1 mass in terms of the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. More preferably, it is more preferably 25% by mass or more, more preferably 3% by mass or more and 20% by mass or less, more preferably 3% by mass or more and 15% by mass or less, and particularly preferably 3% by mass or more and 10% by mass or less.

Further, the compound represented by the formula (XI) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (XI-2).

(wherein R ¹¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, but the complex compound represented by the above formula (XI-2) can be suitably used in each embodiment in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index and the like. combination. For example, one embodiment of the present invention is one type, and two types in other embodiments, and three or more types in other embodiments.

The content of the compound represented by the formula (XI-2) is from 1% by mass to 20% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of the solubility at low temperature, the transfer temperature, electrical reliability, and the like. Preferably, it is more preferably 3 mass% or more and 20 mass% or less, more preferably 4 mass% or more and 20 mass% or less, more preferably 6 mass% or more and 15 mass% or less, and even more preferably 9 mass% or more and 12 mass% or less. .

Further, the compound represented by the formula (XI-2) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (45.11) to the formula (45.14) is preferable, and the formula (45.12) is contained therein. ) to formula (45.14) The compound represented is preferred, and the compound represented by formula (45.12) is more preferred.

Further, the compound represented by the formula (X) is preferably a compound selected from the group represented by the formula (XII).

(wherein, X ¹²¹ to X ¹²⁶ are each independently represented by a fluorine atom or a hydrogen atom, and R ¹²⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkane having 1 to 4 carbon atoms. Oxy group, Y ¹² represents a fluorine atom or -OCF ₃ ).

The compound which can be combined is not particularly limited, but one or more of the plurality of compounds represented by the above formula (XII) are combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, and the like. Preferably, it is more preferable to combine one to four or more types.

Further, the compound represented by the formula (XII) used in the liquid crystal composition of the present invention is preferably a compound represented by the formula (XII-1).

(wherein R ¹²⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, and one or more of the plural compounds represented by the above formula (XII-1) are combined in consideration of the solubility at low temperature, the transfer temperature, the electrical reliability, the complex refractive index, and the like. Preferably, it is more preferable to combine 1 to 3 or more types.

The content of the compound represented by the formula (XII-1) is 1% by mass or more and 15% by mass or less based on the total mass of the liquid crystal composition of the present invention in consideration of the solubility at low temperature, the transfer temperature, electrical reliability, and the like. Preferably, it is more preferably 2% by mass or more and 10% by mass or less, more preferably 3% by mass or more and 8% by mass or less, and particularly preferably 4% by mass or more and 6% by mass or less.

Further, the compound represented by the formula (XII-1) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (46.1) to the formula (46.4) is preferable, and the formula (46.2 is contained therein). The compound represented by the formula (46.4) is preferred.

Further, the compound represented by the formula (XII) is preferably a compound represented by the formula (XII-2).

(wherein R ¹²⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound which can be combined is not particularly limited, and one or more of the plural compounds represented by the above formula (XII-2) are combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. Preferably, it is more preferable to combine 1 to 3 or more types.

The content of the compound represented by the formula (XII-2) is from 1% by mass to 20% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of the solubility at low temperature, the transfer temperature, and electrical reliability. Preferably, it is more preferably 3 mass% or more and 20 mass% or less, more preferably 4 mass% or more and 17 mass% or less, more preferably 6 mass% or more and 15 mass% or less, and even more preferably 9 mass% or more and 13 mass% or less. .

Further, the compound represented by the formula (XII-2) used in the liquid crystal composition of the present invention, specifically, the compound represented by the formula (47.1) to the formula (47.4) is preferable, and the formula (47.2 is contained therein). The compound represented by the formula (47.4) is preferred.

Further, the compound represented by the formula (M) is preferably a compound selected from the group of compounds represented by the formula (XIII).

(wherein, X ¹³¹ to X ¹³⁵ are each independently represented by a fluorine atom or a hydrogen atom, and R ¹³⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkane having 1 to 4 carbon atoms. Oxy group, Y ¹³ represents a fluorine atom or -OCF ₃ ).

The type of the compound which can be combined is not particularly limited, but one or two kinds of the plural compounds represented by the above formula (XIII) are preferred, and one to three types are more preferable, and one type is used. The type is better.

The content of the compound represented by the formula (XIII) has an upper limit and a lower limit in each embodiment in consideration of characteristics such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index.

For example, in one embodiment of the present invention, the content of the compound is 2 to 30% by mass based on the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 4 to 30% by mass. In another embodiment, the content of the compound is 5 to 30% by mass, and in still another embodiment, the content of the compound is 7 to 30% by mass, and in still other embodiments, the content of the compound is 9 In another embodiment, the content of the compound is from 11 to 30% by mass, and in still another embodiment, the content of the compound is from 13 to 30% by mass. In still another embodiment, the content of the compound is from 14 to 30% by mass. In still another embodiment, the content of the compound is from 16 to 30% by mass. In still another embodiment, the content of the compound is from 20 to 30% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is 2 to 30% by mass based on the total mass, and in another embodiment, the content of the compound is 2 to 25% by mass, and further implementation is carried out. In the embodiment, the content of the compound is 2 to 20% by mass, and in still another embodiment, the content of the compound is 2 to 15% by mass, and in still another embodiment, the content of the compound is 2 to 10% by mass. In still another embodiment, the content of the compound is from 2 to 5% by mass.

When the liquid crystal composition of the present invention is used for a liquid crystal display element having a small cell gap, the content of the compound represented by the general formula (XIII) is used. It is suitable to make more. When it is used for a liquid crystal display element having a small driving voltage, it is suitable to form a plurality of compounds represented by the general formula (XIII). Moreover, in the case of use for a liquid crystal display element used in a low-temperature environment, it is suitable to make the content of the compound represented by the general formula (XIII) small. In the case of a liquid crystal composition of a liquid crystal display element having a fast reaction rate, it is suitable to make the content of the compound represented by the general formula (XIII) small.

Further, the compound represented by the formula (XIII) is preferably a compound represented by the formula (XIII-1).

(wherein R ¹³⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The compound represented by the formula (XIII-1) is preferably contained in an amount of 1% by mass or more and 25% by mass or less based on the total mass of the liquid crystal composition of the present invention, and more preferably 3% by mass or more and 25% by mass or less. It is more preferably 5% by mass or more and 20% by mass or less, and more preferably 10% by mass or more and 15% by mass or less.

Further, the compound represented by the formula (XIII-1) is preferably a compound represented by the formula (48.1) to the formula (48.4), and a compound represented by the formula (48.2) is preferred.

Further, the compound represented by the formula (XIII) is preferably a compound represented by the formula (XIII-2).

(wherein R ¹³⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not particularly limited, and it is preferred to contain one to two or more of the plurality of compounds represented by the above formula (XIII-2).

The compound represented by the formula (XIII-2) is preferably contained in an amount of 5% by mass or more and 25% by mass or less based on the total mass of the liquid crystal composition of the present invention, and more preferably 6% by mass or more and 25% by mass or less. It is more preferably 8 mass% or more and 20 mass% or less, and more preferably 10 mass% or more and 15 mass% or less.

Further, the compound represented by the formula (XIII-2) is preferably a compound represented by the formula (49.1) to the formula (49.4), and a compound represented by the formula (49.1) or the formula (49.2) is preferred.

Further, the compound represented by the formula (XIII) is preferably a compound represented by the formula (XIII-3).

(wherein R ¹³⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound which can be combined is not particularly limited, and it is preferred to contain one to two kinds of the plural compounds represented by the above formula (XIII-3).

The compound represented by the formula (XIII-3) contains 2% by mass or more and 20% by mass based on the total mass of the liquid crystal composition of the present invention. The content is preferably 4% by mass or more and 20% by mass or less, more preferably 9% by mass or more and 17% by mass or less, and particularly preferably 11% by mass or more and 14% by mass or less.

Further, the compound represented by the formula (XIII-3) is preferably a compound represented by the formula (50.1) to the formula (50.4), and a compound represented by the formula (50.1) or the formula (50.2) is preferred.

Further, the compound represented by the formula (M) is preferably a compound selected from the group of compounds represented by the formula (XIV).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms or an alkoxy group having 1 to 7 carbon atoms; and X ¹⁴¹ to X ¹⁴⁴ are each independently represented as a fluorine atom or A hydrogen atom, Y ¹⁴ represents a fluorine atom, a chlorine atom or -OCF ₃ , and Q ¹⁴ represents a single bond, -COO- or -CF ₂ O-, and m ¹⁴ is 0 or 1).

The type of the compound which can be combined is not limited, but the complex compound represented by the above formula (XIV) can be appropriately combined in each embodiment in consideration of solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index. For example, one embodiment of the present invention is one type. Further, in another embodiment of the present invention, there are two types. Alternatively, in still another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Alternatively, in another embodiment of the present invention, there are five types. Alternatively, in still another embodiment of the present invention, it is six or more types.

The content of the compound represented by the formula (XIV) has an upper limit and a lower limit in each embodiment in consideration of characteristics such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index.

For example, in one embodiment of the present invention, the content of the compound is from 3 to 40% by mass based on the total mass of the liquid crystal composition of the present invention, and in other embodiments, the content of the compound is from 7 to 40% by mass. In still another embodiment, the content of the compound is 8 to 40% by mass, and in still another embodiment, the content of the compound is 11 to 40% by mass, and in still other embodiments, the content of the compound is In another embodiment, the content of the compound is from 16 to 40% by mass, and in still another embodiment, the content of the compound is from 18 to 40% by mass. In still another embodiment, the content of the compound is from 19 to 40% by mass. In still another embodiment, the content of the compound is from 22 to 40% by mass. In still another embodiment, the content of the compound is from 25 to 40% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is from 3 to 40% by mass based on the total mass. In other embodiments, the content of the compound is 3 to 35% by mass, and in other embodiments, the content of the compound is 3 to 30% by mass, and in still other embodiments, the content of the compound is 3 to 25 mass. In still another embodiment, the content of the compound is from 3 to 20% by mass, and in still another embodiment, the content of the compound is from 3 to 15% by mass.

When the liquid crystal composition of the present invention is used for a liquid crystal display device having a small driving voltage, it is suitable to use a compound having a content represented by the general formula (XIV). Further, in the case of using a liquid crystal composition of a liquid crystal display element having a high reaction rate, it is suitable to make the content of the compound represented by the general formula (XIV) small.

Further, the compound represented by the formula (XIV) is preferably a compound represented by the formula (XIV-1).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms or an alkoxy group having 1 to 7 carbon atoms, and Y ¹⁴ represents a fluorine atom, a chlorine atom or -OCF ₃ ).

The type of the compound that can be combined is not limited, but one to three kinds of the plural compounds represented by the above formula (XIV-1) are combined in consideration of solubility at low temperature, transfer temperature, electrical reliability, complex refractive index, and the like. It is better.

Further, the compound represented by the formula (XIV-1) is preferably a compound represented by the formula (XIV-1-1).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms or an alkoxy group having 1 to 7 carbon atoms).

The content of the compound represented by the formula (XIV-1) is preferably 2% by mass or more, more preferably 4% by mass or more, and even more preferably 7% by mass or more, based on the total mass of the liquid crystal composition of the present invention. 10% by mass or more is more preferable, and 18% by mass or more is particularly preferable. Further, in consideration of low-temperature solubility, transfer temperature, electrical reliability, and the like, the maximum ratio is preferably 30% by mass or less, more preferably 27% by mass or less, more preferably 24% by mass or less, and even less than 21% by mass. Very good.

Further, the compound represented by the formula (XIV-1-1), specifically, the compound represented by the formula (51.1) to the formula (51.4) is preferable, and the compound represented by the formula (51.1) is more preferable. .

Further, the compound represented by the formula (XIV-1) is preferably a compound represented by the formula (XIV-1-2).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms or an alkoxy group having 1 to 7 carbon atoms).

The content of the compound represented by the formula (XIV-1-2) is 1% by mass or more and 15% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and it is more preferably 3 mass% or more and 13 mass% or less, more preferably 5 mass% or more and 11 mass% or less, and particularly preferably 7 mass% or more and 9 mass% or less.

Further, the compound represented by the formula (XIV-1-2), specifically, the compound represented by the formula (52.1) to the formula (52.4) is preferable, and the compound represented by the formula (52.4) is contained. good.

Further, the compound represented by the formula (XIV) is preferably a compound represented by the formula (XIV-2).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and X ¹⁴¹ to X ¹⁴⁴ are each independently represented as a fluorine atom or A hydrogen atom, Y ¹⁴ represents a fluorine atom, a chlorine atom or -OCF ₃ ).

The type of the compound that can be combined is not limited, but the complex compound represented by the above formula (XIV-2) can be suitably used in each embodiment in consideration of low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. combination. For example, one embodiment of the present invention is one type. Further, in another embodiment of the present invention, there are two types. Alternatively, in still another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Alternatively, in another embodiment of the present invention, it may be five or more types.

The content of the compound represented by the formula (XIV-2) is an upper limit and a lower limit in each embodiment in consideration of characteristics such as solubility at low temperature, transfer temperature, electrical reliability, and complex refractive index.

For example, in one embodiment of the present invention, the content of the compound is from 3 to 40% by mass based on the total mass of the liquid crystal composition of the present invention, and in other embodiments, the content of the compound is from 7 to 40% by mass. In other embodiments, the content of the compound is 8 to 40% by mass, and in still other embodiments, the content of the compound is 10 to 40% by mass, and in still other embodiments, the content of the compound is 11 ~40% by mass, and in other embodiments, the aforementioned combination The content of the substance is 12 to 40% by mass, and in still another embodiment, the content of the compound is 18 to 40% by mass. In still another embodiment, the content of the compound is from 19 to 40% by mass. In still another embodiment, the content of the compound is from 21 to 40% by mass. In still another embodiment, the content of the compound is from 22 to 40% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is from 3 to 40% by mass based on the total mass, and in other embodiments, the content of the compound is from 3 to 35% by mass, and is further carried out. In the embodiment, the content of the compound is 3 to 25% by mass, and in still another embodiment, the content of the compound is 3 to 20% by mass, and in still another embodiment, the content of the compound is 3 to 15% by mass. In still another embodiment, the content of the compound is from 3 to 10% by mass.

In the case where the liquid crystal composition of the present invention is used for driving a liquid crystal display element having a small voltage, it is suitable to form a plurality of compounds represented by the general formula (XIV-2). Further, in the case of using a liquid crystal composition of a liquid crystal display element having a high reaction rate, it is suitable to make the content of the compound represented by the general formula (XIV-2) small.

Further, the compound represented by the formula (XIV-2) is preferably a compound represented by the formula (XIV-2-1).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (XIV-2-1) is 1% by mass or more and 15% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of low-temperature solubility, transfer temperature, electrical reliability, and the like. The following is preferable, and it is more preferably 3 mass% or more and 13 mass% or less, more preferably 5 mass% or more and 11 mass% or less, and particularly preferably 7 mass% or more and 9 mass% or less.

Further, the compound represented by the formula (XIV-2-1), specifically, the compound represented by the formula (53.1) to the formula (53.4) is preferable, and the compound represented by the formula (53.4) is contained. good.

Further, the compound represented by the formula (XIV-2) is preferably a compound represented by the formula (XIV-2-2).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (XIV-2-2) is 3% by mass or more and 20% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and 6 mass% or more and 17 mass% or less are more preferable, and 9 mass% The above 15% by mass or less is more preferable, and 12% by mass or more and 14% by mass or less are particularly preferable.

Further, the compound represented by the formula (XIV-2-2), specifically, the compound represented by the formula (54.1) to the formula (54.4) is preferable, and contains the formula (54.2) and/or the formula (54.4). The compound represented is preferred.

In the liquid crystal composition of the present invention, the content of the compound represented by the formula (54.2) is preferably 5% by mass or more and 35% by mass or less based on the total mass of the liquid crystal composition of the present invention, and 5% by mass and 25% by mass. The amount is more preferably 5% by mass or more and 22% by mass or less, more preferably 8% by mass or more and 20% by mass or less, more preferably 10% by mass or more and 17% by mass or less, and more preferably 10% by mass or more and 15% by mass or less. More preferably, 10% by mass or more and 12% by mass or less are particularly preferable.

Further, the compound represented by the formula (XIV-2) is preferably a compound represented by the formula (XIV-2-3).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (XIV-2-3) is 5% by mass or more and 30% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. In the following, it is preferably 9% by mass or more and 27% by mass or less, more preferably 12% by mass or more and 24% by mass or less, and particularly preferably 12% by mass or more and 20% by mass or less.

Further, the compound represented by the formula (XIV-2-3), specifically, the compound represented by the formula (55.1) to the formula (55.4) is preferable, and the formula (55.2) and/or the formula (55.4) are contained therein. The compound represented is preferred.

Further, the compound represented by the formula (XIV-2) is preferably a compound represented by the formula (XIV-2-4).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The type of the compound that can be combined is not limited, but the complex compound represented by the above formula (XIV-2-4) can be used in each embodiment in consideration of low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index. Suitable combination. For example, one embodiment of the present invention is one type. Further, in another embodiment of the present invention, there are two types. Alternatively, in still another embodiment of the present invention, it is three or more types.

The content of the compound represented by the formula (XIV-2-4) has an upper limit and a lower limit in each embodiment in consideration of characteristics such as low-temperature solubility, transfer temperature, electrical reliability, and complex refractive index.

For example, in one embodiment of the present invention, the content of the compound is 2 to 35% by mass based on the total mass of the liquid crystal composition of the present invention, and in other embodiments, the content of the compound is 5 to 35% by mass. In another embodiment, the content of the compound is 8 to 35% by mass, and in still another embodiment, the content of the compound is 9 to 35% by mass, and in still other embodiments, the content of the compound is 10 In other embodiments, the content of the compound is from 18 to 35 mass%, and in still another embodiment, the content of the compound is from 21 to 35 mass%. In still another embodiment, the content of the compound is from 22 to 35% by mass. In still another embodiment, the content of the compound is from 24 to 35% by mass.

Further, for example, in one embodiment of the present invention, the content of the compound is 2 to 35% by mass based on the total mass, and in another embodiment, the content of the compound is 2 to 30% by mass, and further In another embodiment, the content of the compound is 2 to 25% by mass, and in still another embodiment, the content of the compound is 2 to 20% by mass, and in still other embodiments, the content of the compound is 2 to 15% by mass. In still another embodiment, the content of the compound is 2 to 10% by mass.

When the liquid crystal composition of the present invention is used for a liquid crystal display device having a small driving voltage, it is suitable to use a plurality of compounds represented by the general formula (XIV-2-4). Further, in the case of using a liquid crystal composition of a liquid crystal display element having a fast reaction rate, it is suitable to make the content of the compound represented by the general formula (XIV-2-4) small.

Further, the compound represented by the formula (XIV-2-4), specifically, the compound represented by the formula (56.1) to the formula (56.4), preferably contains the formula (56.1), the formula (56.2), and / or a compound represented by the formula (56.4) is preferred.

Further, the compound represented by the formula (XIV-2) is preferably a compound represented by the formula (XIV-2-5).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (XIV-2-5) is 5% by mass or more and 25% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and 10% by mass or more and 22% by mass or less are more preferable, and 13% by mass or more and 18% by mass or less are more preferable, and 13% by mass or more and 15% by mass or less are particularly preferable.

In addition, the compound represented by the formula (XIV-2-5) is specifically a compound represented by the formula (57.1) to the formula (57.4). Among them, a compound represented by the formula (57.1) is preferred.

Further, the compound represented by the formula (XIV-2) is preferably a compound represented by the formula (XIV-2-6).

(wherein R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms).

The content of the compound represented by the formula (XIV-2-6) is 5% by mass or more and 25% by mass based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transfer temperature, electrical reliability, and the like. The following is preferable, and 10% by mass or more and 22% by mass or less are more preferable, and 15% by mass or more and 20% by mass or less are more preferable, and 15% by mass or more and 17% by mass or less are particularly preferable.

Further, the compound represented by the formula (XIV-2-6), specifically, the compound represented by the formula (58.1) to the formula (58.4) is preferable, and the compound represented by the formula (58.2) is contained. good.

The compound used in the invention of the present invention does not have a peracid (-CO-OO-) structure in the molecule. Further, in the case where the reliability and long-term stability of the liquid crystal composition are emphasized, it is preferred not to use a compound having a carbonyl group. Further, in the case where the stability by UV irradiation is emphasized, a compound which does not use a chlorine atom is desired. It is also preferred that the ring structure in the molecule is a compound having only 6 members of the ring.

The liquid crystal composition of the present invention is preferably a compound having a structure in which an oxygen atom having a peracid (-CO-OO-) structure or the like is bonded to each other in the molecule.

When the reliability and long-term stability of the liquid crystal composition are important, the content of the compound having a carbonyl group is preferably 5% by mass or less based on the total mass of the composition, and more preferably 3% by mass or less, and more preferably 1% by mass or less. More preferably, it is not optimal in nature.

In the case of the stability by the UV irradiation, the content of the chlorine atom-substituted compound is preferably 15% by mass or less based on the total mass of the composition, and more preferably 10% by mass or less, and more preferably 5% by mass or less. More preferably, it is not optimal in nature.

It is preferable to form a compound having a ring structure of all 6 members in the molecule, and to form a compound having a ring structure of 6 rings in the molecule, and to produce 80 masses with respect to the total mass of the above composition. % or more is preferable, and it is more preferably 90% by mass or more, and more preferably 95% by mass or more, and it is preferable that the liquid crystal composition is substantially composed only of a compound having a ring structure of 6 members in the molecule.

In order to suppress the deterioration of the oxidation of the liquid crystal composition, it is preferred to make the content of the compound having a cyclohexene group as a ring structure, and the content of the compound having a cyclohexene group relative to the total amount of the above composition. The mass is preferably 10% by mass or less, more preferably 5% by mass or less, and more preferably substantially no.

In view of the improvement of the viscosity and the improvement of the Tni, it is preferred that the content of the compound having a hydrogen atom which can be substituted with a halogen-substituted 2-methylbenzene-1,4-diyl group is preferably small, and the molecule has a 2- The content of the methylbenzene-1,4-diyl compound is preferably 10% by mass or less based on the total mass of the composition, and more preferably 5% by mass or less, and more preferably substantially no.

In the case where the compound contained in the composition of the first embodiment of the present invention has an alkenyl group as a side chain, in the case where the alkenyl group is bonded to cyclohexane, the number of carbon atoms of the alkenyl group is preferably 2 to 5. When the alkenyl group is bonded to the benzene, the number of carbon atoms of the alkenyl group is preferably 4 to 5, and the unsaturated bond of the alkenyl group is not directly bonded to benzene.

The liquid crystal display device of the present invention may contain a polymerizable compound in order to produce a liquid crystal display device such as a PS mode, a lateral electric field type PSA mode or a lateral electric field type PSVA mode. For the polymerizable compound which can be used, a photopolymerizable monomer which is polymerized by an energy ray such as light can be exemplified, and as a structure, for example, a six member having a biphenyl derivative or a triphenyl derivative can be exemplified. Polymerization of a liquid crystal skeleton in which a ring is a plurality of bonds Compounds, etc. More specifically, a difunctional monomer represented by the formula (XX) is preferred.

(wherein, X ²⁰¹ and X ²⁰² are each independently represented by a hydrogen atom or a methyl group, and Sp ²⁰¹ and Sp ²⁰² are each independently represented by 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, an oxygen atom is bonded to an aromatic ring), and Z ²⁰¹ represents -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -CF ₂ O-, -OCF ₂ -, -CH ₂ CH ₂ -, -CF ₂ CF ₂ -, -CH=CH-COO-, -CH=CH-OCO-, -COO-CH=CH-, -OCO-CH=CH- , -COO-CH ₂ CH ₂ -, -OCO-CH ₂ CH ₂ -, -CH ₂ CH ₂ -COO-, -CH ₂ CH ₂ -OCO-, -COO-CH ₂ -, -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-cycloalkyl group or a single bond, and all of the 1,4-phenylene groups in the formula may be substituted by a fluorine atom.

Any one of a diacrylate derivative in which one of X ²⁰¹ and X ²⁰² represents a hydrogen atom, or a dimethacrylate derivative having a methyl group is preferred, and one of them represents a hydrogen atom and the other A compound representing a methyl group is also preferred. The rate of polymerization of these compounds is the fastest in diacrylate derivatives, the slowest in dimethacrylate derivatives, and the middle of asymmetric compounds, depending on the application. Dimethacrylate derivatives are particularly preferred for PSA display elements.

Sp ²⁰¹ and Sp ²⁰² each independently represent a single bond, an alkylene group having a carbon number of 1 to 8 or -O- (CH _{2) s} -, but in the PSA display element, at least one of a single bond are preferred, The compound which represents a single bond or one of which is a single bond and the other represents an alkylene group having 1 to 8 carbon atoms or -O-(CH ₂ ) _s - is preferred. In this case, an alkyl group of 1 to 4 is preferred, and an s of 1 to 4 is preferred.

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 Preferably, -COO-, -OCO- or a single bond is preferred, and a single bond is particularly preferred.

M ²⁰¹ represents a 1,4-phenylene group, a trans-1,4-cycloalkyl group or a single bond in which any hydrogen atom may be substituted by a fluorine atom, but a 1,4-phenylene group or a single bond is preferred. . C represents a ring structure other than a single bond, and Z ²⁰¹ is preferably a linking group other than a single bond, and M ²⁰¹ is a single bond, and a Z ²⁰¹ single bond is preferable.

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

In the general formula (XX), M ²⁰¹ represents a single bond, and the ring structure is formed by two rings, and it is preferred that the following formula (XXa-1) to formula (XXa-5) is preferable, and the formula (XXa-) is represented. 1) The formula (XXa-3) is more preferable, and the formula (XXa-1) is particularly preferable.

(In the formula, both ends are made to be bonded to Sp ²⁰¹ or Sp ²⁰² ).

The polymerizable compound containing these skeletons is most suitable for the PSA type liquid crystal display element after polymerization, and since a good alignment state is obtained, display unevenness is suppressed or does not occur at all.

From the above, as the polymerizable monomer, the formula (XX-1) to the formula (XX-4) are particularly preferable, and the formula (XX-2) is most preferable.

(wherein, Sp ²⁰ represents an alkylene group having 2 to 5 carbon atoms).

In the case where a monomer is added to the liquid crystal composition of the present invention, the polymerization proceeds even if the polymerization initiator is not present, but a polymerization initiator may be contained in order to promote the polymerization. The polymerization initiator may, for example, be a benzoin ether, a benzophenone, an acetophenone, a benzil ketal or a hydrazine. Acylphosphine oxides and the like.

The liquid crystal composition in the present invention may further contain a compound represented by the formula (Q).

(wherein R ^Q represents a linear alkyl group or a branched alkyl group having 1 to 22 carbon atoms, and one or more of the CH ₂ groups in the alkyl group may be such that the oxygen atoms are not directly adjacent to each other. Substituted by -O-, -CH=CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF ₂ O-, -OCF ₂ -, M ^Q represents trans-1,4 - a cyclohexyl group, a 1,4-phenylene group or a single bond).

R ^Q represents a linear alkyl group or a branched alkyl group having 1 to 22 carbon atoms, and one or more of the CH ₂ groups in the alkyl group may be subjected to -O- in a manner in which the oxygen atoms are not directly adjacent to each other. , -CH=CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF ₂ O-, -OCF ₂ -, but a linear alkyl group having 1 to 10 carbon atoms, A linear alkoxy group, a CH ₂ group substituted with -OCO- or -COO-, a linear alkyl group, a branched alkyl group, a branched alkoxy group, and a CH ₂ group are substituted with - a branched alkyl group of OCO- or -COO- is preferred, a linear alkyl group having 1 to 20 carbon atoms, a CH ₂ group having ₁ group substituted with a linear alkyl group of -OCO- or -COO-, More preferably, the branched alkyl group, the branched alkoxy group, and the CH ₂ group of one is substituted with a branched alkyl group of -OCO- or -COO-. 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 preferred.

The compound represented by the formula (Q), more specifically, a compound represented by the following formula (Q-a) to formula (Q-d) is preferred.

In the formula, R ^Q1 is preferably a linear alkyl group or a branched alkyl group having 1 to 10 carbon atoms, and R ^Q2 is preferably a linear alkyl group or a branched alkyl group having 1 to 20 carbon atoms. R ^Q3 is a linear alkyl group having 1 to 8 carbon atoms, a branched alkyl group, a linear alkoxy group or a branched alkoxy group, and the L ^Q is a linear chain having 1 to 8 carbon atoms. An alkyl group or a branched alkyl group is preferred. Among the compounds represented by the formula (Qa) to the formula (Qd), the compound represented by the formula (Qc) and the formula (Qd) is more preferable.

In the liquid crystal composition of the present invention, one or two kinds of compounds represented by the formula (Q) are preferred, and one to five are more preferred. Preferably, the content is preferably 0.001 to 1% by mass, more preferably 0.001 to 0.1% by mass, more preferably 0.001 to 0.05% by mass.

<Liquid crystal display element>

The liquid crystal display device containing the polymerizable compound of the present invention is a liquid crystal display device in which the polymerizable compound contained in the polymerized polymer is polymerized by ultraviolet irradiation to impart liquid crystal alignment ability, and the amount of transmitted light is controlled by birefringence of the liquid crystal composition. in use. As for the liquid crystal display element, it can be used for ECB-LCD, VA-LCD, FFS-LCD, AM-LCD (active matrix liquid crystal display element), TN (nematic liquid crystal display element), STN-LCD (super twist direction) Column type liquid crystal display elements), OCB-LCDs and IPS-LCDs (planar conversion liquid crystal display elements), but particularly for AM-LCDs, can be used for transmissive or reflective liquid crystal display elements.

For the two substrates of the liquid crystal cell used for the liquid crystal display element, glass or a soft and transparent material such as plastic may be used, or one of them may be an opaque material such as tantalum. The transparent substrate having a transparent electrode layer can be obtained, for example, by sputtering indium tin oxide (ITO) on a transparent substrate such as a glass plate.

The color filter can be produced, for example, by a pigment dispersion method, a printing method, an electrodeposition method, a dyeing method, or the like. A method of producing a color filter by a pigment dispersion method will be described as an example. A curable coloring composition for a color filter is applied onto the transparent substrate, and a pattern forming process is performed, and heating or light irradiation is performed. And make it hard. This step can be performed as a color element for a color filter by performing three colors of red, green, and blue. Further, a pixel electrode provided with an active element such as a TFT or a thin film diode may be provided on the substrate.

The substrate is oriented such that the transparent electrode layer is inside. At this time, the interval between the substrates can also be adjusted by the spacer. At this time, it is preferable to adjust the thickness of the obtained light control layer to 1 to 100 μm. It is more preferable that 1.5 to 10 μm is used, and in the case of using a polarizing plate, it is preferable to adjust the product of the refractive index anisotropy Δn of the liquid crystal and the thickness d of the liquid crystal cell in such a manner that the contrast is maximized. Further, in the case of two polarizing plates, the polarizing axes of the respective polarizing plates can be adjusted to adjust the viewing angle or contrast to be good. Further, a phase difference film for increasing the viewing angle can also be used. The spacer may, for example, be a columnar spacer including glass particles, plastic particles, alumina particles, a photoresist material, or the like. Thereafter, a sealant such as an epoxy thermosetting composition is screen-printed on the substrate in a shape in which a liquid crystal injection port is provided, and the substrates are bonded to each other to heat and cure the sealant.

A method of sandwiching a liquid crystal composition containing a polymerizable compound between two substrates can be carried out by a usual vacuum injection method or ODF method. However, the vacuum injection method does not cause a dripping mark, but there is a problem that the injected trace remains. In the present invention, it can be preferably used for a display element manufactured by the ODF method. In the manufacturing process of the liquid crystal display element of the ODF method, an epoxy-based photothermal heat-sealing sealant is used in a substrate of either a backplane or a frontplane, and is closed by using a dispenser. The circuit is depicted in a soil-like manner in which a liquid crystal display element is produced by dropping a predetermined amount of the liquid crystal composition under degassing by joining the front plate and the back plate. Since the liquid crystal composition of the present invention is stably carried out by dropping the liquid crystal composition in the ODF step, it can be preferably used.

In the method of polymerizing a polymerizable compound, in order to obtain a good alignment property of a liquid crystal, an appropriate polymerization rate is desired, and polymerization is carried out by irradiating an active energy ray such as ultraviolet rays or electron beams in a single or in combination or sequentially. The method is preferred. In the case of using ultraviolet rays, a polarized light source or a non-polarized light source may be used. In the case where the liquid crystal composition containing the polymerizable compound is polymerized in a state of being sandwiched between the two substrates, at least the substrate on the irradiation surface side must have appropriate transparency with respect to the active energy ray. Further, when a specific portion is polymerized by using a mask after light irradiation, the alignment state of the unpolymerized portion is changed by changing conditions such as an electric field, a magnetic field, or a temperature, and further, polymerization can be performed by using an irradiation active energy ray. s method. In particular, in the case of ultraviolet light exposure, it is preferred to perform ultraviolet exposure while applying an alternating electric field to the liquid crystal composition containing the polymerizable compound. The applied alternating electric field is preferably an alternating current having a frequency of 10 Hz to 10 kHz, and a frequency of 60 Hz to 10 kHz is more preferable, and the voltage is selected in accordance with a desired pre-tilt angle of the liquid crystal display element. That is, the pretilt angle of the liquid crystal display element can be controlled by the applied voltage. In the liquid crystal display element of the transverse electric field type MVA mode, it is preferable to control the pretilt angle to 80 to 89.9 degrees from the viewpoint of alignment stability and contrast.

The temperature at the time of irradiation is preferably in a temperature range in which the liquid crystal state of the liquid crystal composition of the present invention is maintained. The polymerizer is preferred at a temperature close to room temperature, i.e., typically at a temperature of from 15 to 35 °C. As the lamp for causing ultraviolet rays, a metal halide lamp, a high pressure mercury lamp, an ultrahigh pressure mercury lamp, or the like can be used. Further, in terms of the wavelength of the ultraviolet ray to be irradiated, it is preferred to irradiate ultraviolet rays in the wavelength range of the absorption wavelength range of the non-liquid crystal composition, and it is preferable to use ultraviolet rays when necessary. The intensity of the ultraviolet ray to be irradiated is preferably 0.1 mW/cm ² to 100 W/cm ^{2 , more} preferably 2 mW/cm ² to 50 W/cm ² . The energy of the ultraviolet ray to be irradiated can be appropriately adjusted, but it is preferably 10 mJ/cm ² to 500 J/cm ^{2 , more} preferably 100 mJ/cm ² to 200 J/cm ² . When the ultraviolet rays are irradiated, the intensity can be changed. The time for irradiating the ultraviolet rays is appropriately selected depending on the intensity of the ultraviolet rays to be irradiated, but 10 seconds to 3600 seconds is preferable, and 10 seconds to 600 seconds is more preferable.

The liquid crystal display element using the liquid crystal composition of the present invention is useful for suppressing both high-speed reaction and display failure, and particularly for a liquid crystal display element for active matrix driving, and is applicable to VA mode, PSVA mode, PSA mode, IPS (in-plane switching) mode, FSS (fringe field switching) mode, or liquid crystal display element for ECB mode.

Hereinafter, preferred embodiments of the liquid crystal display device (liquid crystal display) of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a cross-sectional view showing a liquid crystal display element including two substrates facing each other, a sealing material provided between the substrates, and a liquid crystal sealed in a sealing region surrounded by the sealing material.

Specifically, a specific embodiment of a liquid crystal display device is provided. The TFT substrate 102 and the pixel electrode 103 are provided on the first substrate 100, and a passivation film 104 and a first alignment film 105 are provided thereon. The second substrate 200 is provided with a black matrix 202, a color filter 203, a planarization film (overcoat layer) 201, a transparent electrode 204, and a second alignment film 205 is disposed thereon. a front plate facing the backing plate and a sealing material disposed between the substrates 301, and a liquid crystal layer 303 sealed in a sealing region surrounded by the sealing material, and protrusions (columnar spacers) 302 and 304 are provided on a surface of the substrate adjacent to the sealing material 301.

The first substrate or the second substrate may be substantially transparent, and the material is not particularly limited, and glass, ceramics, plastic, or the like can be used. For the plastic substrate, cellulose derivatives such as cellulose, triethyl fluorenyl cellulose, and diethyl hydrazine cellulose; polycycloolefin derivatives, polyethylene terephthalate, and poly naphthalene dicarboxylic acid can be used. Polyesters such as ethylene glycol; polyolefins such as polypropylene, polyethylene, polycarbonate, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polyamide, polyimine, polyimine Indoleamine, polystyrene, polyacrylate, polymethyl methacrylate, polyether oxime, polyarylate compound, inorganic-organic composite materials such as glass fiber-epoxy resin, glass fiber-acrylic resin, etc. .

When a plastic substrate is used, a barrier film is preferably used. The function of the barrier film has the reliability of lowering the moisture permeability of the plastic substrate and improving the electrical characteristics of the liquid crystal display element. The barrier film is not particularly limited as long as it has high transparency and low water vapor permeability. Generally, inorganic materials such as cerium oxide are used by evaporation or sputtering, and chemical vapor deposition. A film formed by a (CVD method).

In the present invention, the first material or the second substrate may be the same material or a different material, and is not particularly limited. When a glass substrate is used, a liquid crystal display element excellent in heat resistance and dimensional stability can be produced. Further, in the case of a plastic substrate, it is preferably a method of manufacturing a roll-to-roll process and is suitable for weight reduction or flexibility. Moreover, if it is imparted with flatness and heat resistance For the purpose, good results can be obtained when combining a plastic substrate and a glass substrate.

Further, in the embodiment described later, a substrate which is a material of the first substrate 100 or the second substrate 200 is used.

The TFT substrate 102 and the pixel electrode 103 are provided on the first substrate 100 on the back sheet. These are manufactured in the usual array steps. A passivation film 104 and a first alignment film 105 are provided thereon to obtain a back sheet.

The passivation film 104 (also referred to as an inorganic protective film) is a film for protecting the TFT layer, and a nitride film (SiNx), an oxide film (SiOx), or the like is usually formed by a chemical vapor deposition (CVD) technique or the like.

Further, the first alignment film 105 is a film having a function of aligning liquid crystals, and a polymer material such as a general polyimine is often used. As the coating liquid, an alignment agent solution containing a polymer material and a solvent can be used. The alignment film is coated in the sealing region due to the possibility of suppressing the adhesion to the sealing material. The coating method is a printing method such as a flexographic printing method or a droplet discharge method such as inkjet. The coated alignment agent solution is cured by temporary drying and evaporation of the solvent, followed by baking. Thereafter, the alignment process is performed in order to make the alignment function.

The alignment treatment is carried out by a usual rubbing method. The polymer film formed as described above is rubbed in one direction by using a flat-grinding cloth made of fibers such as enamel, and liquid crystal alignment ability is generated.

Also, there are also those who use the optical alignment method. The photo-alignment method is a method in which a polarizing light is irradiated onto an alignment film containing an organic material having photoreceptivity to cause an alignment ability to occur, and substrate damage or dust generation by a rubbing method does not occur. As an example of the organic material in the photo-alignment method, there is a material containing a dichroic dye. For dichroic dyes, it can be used Molecular alignment induced or heterogeneous reaction (eg azophenyl), dimerization reaction (eg, cinnamyl), photocrosslinking reaction (eg, benzophenone) caused by Weigert effect of photodichroism A ketone group, or a photodecomposition reaction (for example, a polyamidino group), which generates a photoreaction which is a source of liquid crystal alignment ability (hereinafter, abbreviated as a photo-alignment group). The applied alignment agent solution is obtained by temporarily drying the solvent and evaporating the light having an arbitrary deflection (polarized light) to obtain an alignment film having an alignment ability in an arbitrary direction.

The front substrate is provided with a black matrix 202, a color filter 203, a planarizing film 201, a transparent electrode 204, and a second alignment film 205 on the second substrate 200.

The black matrix 202 is produced, for example, by a pigment dispersion method. Specifically, on the second substrate 200 provided with the barrier film 201, a colored resin liquid in which a black coloring agent for black matrix formation is uniformly dispersed is applied to form a colored layer. Next, the colored layer is baked to be hardened. The photoresist is coated thereon and pre-baked. After the photoresist is exposed through the mask pattern, development is performed to pattern the colored layer. Thereafter, the photoresist layer is peeled off, and the colored layer is baked to complete the black matrix 202.

Alternatively, a photoresist type pigment dispersion liquid can also be used. In this case, a photoresist type pigment dispersion liquid is applied, and after prebaking, it is exposed by a mask pattern, and then developed to form a colored layer. Thereafter, the photoresist layer is peeled off, and the colored layer is baked to complete the black matrix 202.

The color filter 203 is formed by a pigment dispersion method, an electrodeposition method, a printing method, a dyeing method, or the like. In the case of the pigment dispersion method, a color resin liquid in which a pigment (for example, a red pigment) is uniformly dispersed is applied to After bake-hardening on the second substrate 200, the upper surface is coated with a photoresist and pre-baked. After the photoresist is exposed through the mask pattern, development is performed to form a pattern. Thereafter, the photoresist layer is peeled off and baked again to complete the (red) color filter 203. The order of coloring is not particularly limited. Similarly, a green color filter 203 and a blue color filter 203 are formed.

The transparent electrode 204 is provided on the color filter 203 (the outer layer (201) is provided on the color filter 203 for the purpose of flattening the surface if necessary). The transparent electrode 204 is preferably one having a high light transmittance, and the smaller one is preferably a smaller one. The transparent electrode 204 is formed of an oxide film of ITO or the like by a sputtering method.

Further, for the purpose of protecting the transparent electrode 204, a passivation film may be provided on the transparent electrode 204.

The second alignment film 205 is the same as the first alignment film 105 described above.

Although the above description of the back sheet and the front sheet used in the present invention is described above, the present invention is not limited to the specific embodiment, and the change of the aspect of the liquid crystal display element is free.

The shape of the columnar spacer is not particularly limited, and the horizontal cross section may be formed into various shapes such as a circular shape, a square shape, or the like, but the horizontal cross section is rounded in consideration of a misaligned margin during the process. Or positive polygons are particularly good. Further, the shape of the projection is preferably a truncated cone or a truncated cone.

The material of the columnar spacer is not particularly limited as long as it is an organic solvent or a liquid crystal which is not dissolved in the sealing material or the sealing material, but the synthetic resin is used in terms of processing and weight reduction. (curable resin) is preferred. On the other hand, the protrusions may be provided on the surface adjacent to the sealing material on the first substrate by a gravure printing method or a solution dropping method. For this reason, it is preferred to use a photocurable resin suitable for the method of gravure printing or the solution dropping method.

The case where the columnar spacer is obtained by the gravure printing method will be described as an example. Fig. 2 is a view showing an exposure processing procedure for forming a columnar spacer formed on a black matrix of a mask pattern.

A resin liquid for forming a columnar spacer (excluding a colorant) is applied to the transparent electrode 204 of the front plate. Next, the resin layer 402 is baked and hardened. The photoresist is coated thereon and pre-baked. After the photoresist is exposed through the mask pattern 401, development is performed to pattern the resin layer. Thereafter, the photoresist layer was peeled off, and the resin layer was baked to complete the columnar spacer (302, 0304 in Fig. 1).

The position at which the column spacers are formed determines the desired position depending on the mask pattern. Therefore, both the inside of the sealing region of the liquid crystal display element and the outside of the sealing region (the sealing material coating portion) can be simultaneously formed. Further, the column spacer is preferably formed on the black matrix so as not to lower the quality of the sealing region. The column spacers thus produced by gravure printing are sometimes referred to as column spacers or photo spacers.

The material of the spacer is a mixture of a negative water-soluble resin such as a PVA-strolbazo photosensitive resin or a polyfunctional acrylic monomer, an acrylic copolymer, a triazole-based initiator, or the like. Or a colored resin using a coloring agent dispersed in a polyimide resin Methods. The present invention is not particularly limited, and a spacer can be obtained by a known material depending on the phase of the liquid crystal or the sealing material to be used.

In this manner, after the columnar spacer is provided on the surface of the front plate which is the sealing region, the sealing material is applied to the surface adjacent to the sealing material of the backing plate (301 in Fig. 1).

The material of the sealing material is not particularly limited, and a curable resin composition for adding a polymerization initiator to an epoxy-based or acrylic-based photocurable, thermosetting, or photo-curable resin can be used. Further, in order to control moisture permeability, elastic modulus, viscosity, and the like, a filler derived from an inorganic substance or an organic substance may be added. The shape of these fillers is not particularly limited and may be spherical, fibrous, amorphous or the like. Further, in order to control the cell gap well, a spherical or fibrous spacer having a monodisperse diameter may be mixed, and in order to further strengthen the adhesion to the substrate, a fibrous substance which is easily entangled with the protrusion on the substrate may be mixed. The diameter of the fibrous material used at this time is about 1/5 to 1/10 of the cell gap, and it is desirable that the length of the fibrous material is shorter than the seal coating width.

In addition, the material of the fibrous material is not particularly limited as long as the predetermined shape can be obtained, and synthetic fibers such as cellulose, polyamide or polyester, or inorganic materials such as glass or carbon can be suitably selected.

In the method of applying the sealing material, there is a printing method or a dispensing method, but a dispensing method in which the amount of the sealing material used is small is preferable. The sealing material application position is usually formed on a black matrix in such a manner that it does not adversely affect the sealing area. In order to form the liquid crystal dropping region of the next step (in a manner in which the liquid crystal does not leak), the sealing material coating shape is formed into a closed loop shape.

The liquid crystal is dropped into the closed circuit shape (sealing region) of the front plate to which the sealing material is applied. A dispenser is usually used. The amount of liquid crystal to be dropped is basically the same as the volume of the product of the height of the columnar spacer and the sealed coated area in order to match the volume of the liquid crystal cell. However, in order to optimize liquid crystal leakage or display characteristics in the step of bonding the liquid crystal cells, the amount of liquid crystal dropped may be appropriately adjusted or the liquid crystal dropping position may be dispersed.

Next, the front plate of the liquid crystal is applied by applying the sealing material, and bonding to the back sheet. Specifically, the front plate and the back plate are adsorbed on a stage having a mechanism for adsorbing the substrate such as an electrostatic chuck, and the first alignment film of the front plate and the first alignment film of the back plate are paired. The position is placed at a position (distance) where the sealing material is not adjacent to the other substrate. In this state, the system is depressurized. After the decompression is completed, the positions of the two substrates are adjusted while adjusting the bonding position between the front plate and the back plate (calibration operation). At the end of the adjustment of the bonding position, the substrate is brought close to the position where the sealing material on the front plate abuts the backing plate. In this state, the system is filled with an inert gas, and the pressure is gradually released while returning to normal pressure. At this time, the front plate and the back plate are bonded together by the atmospheric pressure, and the cell gap is formed at the height position of the column spacer. In this state, the sealing material is irradiated with ultraviolet rays and the sealing material is cured to form a liquid crystal cell. Thereafter, the heating step is added as appropriate and the sealing material is allowed to harden. In order to enhance the adhesion of the sealing material or to increase the reliability of the electrical characteristics, a heating step is often added.

[Examples]

The following examples are given to further illustrate the invention, but the invention is not limited to the examples. Moreover, "%" in the composition of the following examples and comparative examples means "% by mass".

In the examples, the measured characteristics are as follows.

Tni: nematic phase-isotropic liquid phase transfer temperature (°C)

Δn: refractive index anisotropy in 295K (alias: complex refractive index)

△ ε: dielectric anisotropy in 295K

η: viscosity in 295K (mPa‧s)

Rotational viscosity (mPa‧s) in γ1: 295K

Initial voltage holding ratio (initial VHR): Voltage holding ratio at 50 ° C under the condition of a frequency of 60 Hz and a voltage of 4 V (%)

Voltage holding ratio after heating (VHR after heating): Voltage holding ratio (%) measured under the same conditions as the initial VHR after maintaining for 1 hour in an environment of 150 ° C

<Image review>

The image sticking evaluation of the liquid crystal display element was performed by the following four-stage evaluation by visually displaying the degree of image sticking of the fixed pattern when the designated fixed pattern was displayed for 1440 hours in the display area.

◎: No residual image.

○: Only a few residual images are acceptable.

△: There is a residual image and it is unacceptable.

×: There is a residual image and it is extremely poor.

<Evaluation of Volatile (Contamination of Manufacturing Equipment)>

The evaluation of the volatility of the liquid crystal material was carried out by visually observing the operation state of the vacuum agitating defoaming mixer with a stroboscope while observing the foaming of the liquid crystal material. Specifically, 0.8 kg of a liquid crystal composition was placed in a special container of a vacuum stirring defoaming mixer having a capacity of 2.0 L, and under a degassing of 4 kPa, at a revolution speed of 15 S ^-1 and a rotation speed of 7.5 S ^-1 , the vacuum was operated. The defoaming mixer was stirred and evaluated in the following four stages via the time until the start of foaming.

◎: It takes 3 minutes or more to foam. The possibility of contaminating the device via volatilization is low.

○: The foaming time was 1 minute or more and less than 3 minutes. There are doubts about the slight contamination of the device through volatilization.

△: The foaming time was 30 seconds or more and less than 1 minute. Device contamination can occur via volatilization.

×: The foaming is within 30 seconds. There are doubts about volatilization and significant equipment contamination.

<Evaluation of process suitability>

The process suitability is based on the ODF process. Using a fixed metering pump, 40pL of liquid crystal is added to each drop and 100000 times, followed by "0~200 times, 201~400 times, 401~600 times, ...99801~100000 The change in the amount of liquid crystal added 200 times each was evaluated in the following four stages.

◎: The change is extremely small (the liquid crystal display element can be stably produced)

○: Only a few changes are acceptable

△: There is a change and it is unacceptable (the yield is deteriorated due to the occurrence of spots)

×: There is a change and very poor (liquid crystal leakage or vacuum bubble generation)

<Solubility evaluation in low temperature>

After modulating the liquid crystal composition, weigh 0.5g in a 1mL sample vial. The liquid crystal composition was continuously subjected to 1 cycle of "-20 ° C (for 1 hour) → temperature increase (0.2 ° C / min) → 0 ° C (for 1 hour) → temperature rise (0.2 ° C /) in a temperature-controlled test tank. Per minute) → 20 ° C (for 1 hour) → temperature drop (-0.2 ° C / min) → 0 ° C (for 1 hour) → temperature drop (-0.2 ° C / min) → -20 ° C" temperature change, visual observation From the occurrence of precipitates of the liquid crystal composition, the solubility evaluation at low temperature was carried out in the following four-stage evaluation.

◎: No precipitate was observed for 600 hours or more.

○: No precipitate was observed for 300 hours or longer.

△: Precipitates were observed within 150 hours.

×: Precipitates were observed within 75 hours.

[Examples 1 to 2 and Comparative Examples 1 to 2]

The composition of the compound represented by the chemical formula shown below was prepared, and the physical property was measured. The results are shown in Table 1.

The numerical values of the respective formulas of Table 1 indicate the ratio (unit: mass%) of each compound contained in each composition.

In Comparative Example 1, the compound represented by the formula (ii) (the compound represented by the formulae (44.1) and (44.2)) contained in the liquid crystal composition of Example 1 was replaced with the formulas (45.2) and (26.1). (45.3) A liquid crystal composition of the compound represented. The two liquid crystal compositions have substantially the same value of Δn. When the physical property values of the first embodiment and the comparative example 1 were compared, when the compound represented by the formula (ii) was removed, Tni was lowered, and in the case of Example 1, the temperature of Tni was high. Can be used in a wide temperature range. Further, although Δε was slightly increased in Comparative Example 1, the value of η also increased.

In Comparative Example 2, the compound represented by the formula (i) (the compound represented by the formula (28.3)) contained in the liquid crystal composition of Example 1 was replaced with the formulas (45.3), (34.3), (44.1) and (44.2) A liquid crystal composition of the compound represented. When the results of Comparative Example 1 and Comparative Example 2 were compared, Δn and Δε were increased when the compound represented by the general formula (i) was removed, but the value of η was greatly increased.

Further, Example 2 is a liquid crystal composition in which the content ratios of the respective components of Example 1 and Comparative Example 2 were adjusted. It is known that the values of Tni, Δn, η, and γ1 are approximately the same, but in Example 2, the Δε value becomes large.

[Examples 3 to 5]

The composition of the compound represented by the chemical formula shown below was prepared, and the physical property was measured. The results are shown in Table 2.

The numerical values of the respective formulas of Table 2 show the ratio (unit: mass%) of each compound contained in each composition.

[Examples 6 to 8]

The composition of the compound represented by the chemical formula shown below was prepared, and the physical property was measured. The results are shown in Table 3.

The numerical values of the respective formulas of Table 3 show the ratio (unit: mass%) of each compound contained in each composition.

[Examples 9 to 11]

The composition of the compound represented by the chemical formula shown below was prepared, and the physical property was measured. The results are shown in Table 4.

The numerical values of the respective formulas of Table 4 show the ratio (unit: mass%) of each compound contained in each composition.

[Examples 12 to 14]

The composition of the compound represented by the chemical formula shown below was prepared, and the physical property was measured. The results are shown in Table 5.

The numerical values of the respective formulas of Table 5 show the ratio (unit: mass%) of each compound contained in each composition.

[Examples 15 to 17]

The composition of the compound represented by the chemical formula shown below was prepared, and the physical property was measured. The results are shown in Table 6.

The numerical values of the respective formulas of Table 6 show the ratio (unit: mass%) of each compound contained in each composition.

[Examples 18 to 20]

The composition of the compound represented by the chemical formula shown below was prepared, and the physical property was measured. The results are shown in Table 7.

The numerical values of the respective formulas of Table 7 show the ratio (unit: mass%) of each compound contained in each composition.

[Examples 21 to 23]

The composition of the compound represented by the chemical formula shown below was prepared, and the physical property was measured. The results are shown in Table 8.

The numerical values of the respective formulas of Table 8 show the ratio (unit: mass%) of each compound contained in each composition.

The initial VHR of the liquid crystal composition described in each example, the VHR after heating (150 ° C, 1 time), the evaluation of residual image, the evaluation of the volatility, the evaluation of the process suitability, and the evaluation of the solubility in the low temperature were described.

Further, the liquid crystal compositions of the other examples other than Examples 1, 2, 3, 6, 9, 12, 15, 18, and 21 shown in the above table were also subjected to the same evaluation, and good results were obtained.

The components, the combinations thereof, and the like in the respective embodiments described above are examples, and the addition, omission, substitution, and other modifications of the components are possible without departing from the spirit and scope of the invention. Further, the present invention is not limited to the embodiments, and is limited only by the scope of the claims (the scope of the patent application).

[Industrial availability]

The liquid crystal composition of the present invention can be widely applied to the fields of liquid crystal display elements and liquid crystal displays.

Claims (9)

A liquid crystal composition containing any one or two or more of the compounds represented by the following formula (i), and containing any one or two of the compounds represented by the following formula (ii) In addition, the compound represented by the following formula (1.3) contains a compound selected from the following formula (26.1), the following formula (26.2), the following formula (45.2), the following formula (45.3), and the following Any one or two or more of the groups of the compounds represented by the formula (45.4), In the formula, R ^11a and R ^21a are each independently represented by an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent -CH ₂ - may be independently substituted with -CH= CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-, the hydrogen atom in the alkyl group may be substituted with a fluorine atom or a chlorine atom, and m ²¹ represents 0 or 1, X ²¹ , X ²² , X ²³ and X ²⁴ are each independently represented by a hydrogen atom, a fluorine atom or a chlorine atom, and X ²⁵ represents a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, -CF ₃ or -OCF ₃ ; The liquid crystal composition of claim 1, wherein X ²⁵ in the above formula (ii) is a fluorine atom. The liquid crystal composition of claim 1 or 2, wherein m ²¹ in the above formula (ii) is 1. The liquid crystal composition of claim 1 or 2, wherein at least two of X ²¹ to X ²⁴ in the above formula (ii) are fluorine atoms. The liquid crystal composition of claim 1, which contains a compound represented by the following formula (L), In the formula, R ^L1 and R ^L2 are each independently represented by an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent -CH ₂ - may be independently substituted with -CH= CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-, OL represents 0, 1, 2 or 3, and B ^L1 , B ^L2 and B ^L3 are each independently represented as selected from the following The group of the group consisting of: (a) 1,4-cycloalkylene group, one of the -CH ₂ - or the non-contiguous two or more -CH ₂ - present in the group may be substituted with -O- And (b) 1,4-phenylene, one of which is present in the group -CH= or two or more non-contiguous -CH= may be substituted with -N=, the above-mentioned group (a), One and/or two or more hydrogen atoms in the group (b) may be independently substituted with a cyano group, a fluorine atom or a chlorine atom; L ^L1 and L ^L2 are each independently represented as a single bond, -CH ₂ CH ₂ - , -(CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -OCF ₂ -, -CF ₂ O-, -CH=NN=CH-, -CH= CH-, -CF=CF- or -C≡C-, OL is 2 or 3 and L ^L2 exists in a plurality of cases, they may be the same or different, OL is 2 or 3 and B ^L3 has a complex number In the case of the above, they may be the same or different; however, the compound represented by the above formula (1.3) Outside. The liquid crystal composition of claim 1, which contains a compound represented by the following formula (M), In the formula, R ^M1 represents an alkyl group having 1 to 8 carbon atoms, and one or two or more non-contiguous -CH ₂ - groups of the alkyl group may be independently substituted with -CH=CH-, -C≡. C-, -O-, -CO-, -COO- or -OCO-, PM represents 0, 1, 2, 3 or 4, and C ^M1 and C ^M2 are each independently a group representing a group selected from the group consisting of: (d) a 1,4-cycloalkylene group in which one -CH ₂ - or two or more -CH ₂ - which are not adjacent to each other may be substituted with -O- or -S-; e) 1,4-phenylene, one of which is present in the group -CH= or two or more non-contiguous -CH= may be substituted with -N=, the above-mentioned group (d), group (e One or more than two or more hydrogen atoms may be independently substituted with a cyano group, a fluorine atom or a chlorine atom, and K ^M1 and K ^M2 are each independently represented as a single bond, -CH ₂ CH ₂ -, - (CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -, -CF ₂ O-, -COO-, -OCO- or -C≡C-, PM 2, 3 or 4 And K ^M1 has a plurality of cases, they may be the same or different, PM is 2, 3 or 4 and C ^M2 has a plurality of cases, which may be the same or different, X ^M1 and X ^{M3 is} independently represented as a hydrogen atom, a chlorine atom or a fluorine atom, and X ^M2 represents hydrogen. Atom, fluorine atom, chlorine atom, cyano group, trifluoromethyl group, fluoromethoxy group, difluoromethoxy group, trifluoromethoxy group or 2,2,2-trifluoroethyl group; And a compound represented by the formula (2), and a compound represented by the above formula (26.1), the above formula (26.2), the above formula (45.2), the above formula (45.3), and the above formula (45.4). A liquid crystal display element using the liquid crystal composition of claim 1. A liquid crystal display element for use in any one of an IPS mode, an OCB mode, an ECB mode, a VA mode, and an FFS mode, characterized in that a liquid crystal composition as claimed in claim 1 is used. A liquid crystal display characterized by using a liquid crystal display element as claimed in claim 7 or 8.