TWI521049B - Liquid crystal composition and liquid crystal display element using same - Google Patents

Description

Liquid crystal composition and liquid crystal display element using same

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

The liquid crystal display element is represented by a timepiece or a desktop electronic computer, and is used in various measuring apparatuses, automobile panels, word processors, electronic notebooks, printers, computers, televisions, clocks, advertisement display boards, and the like. Examples of the liquid crystal display method include a TN (twisted nematic) type, an STN (super twisted nematic) type, a vertical alignment type using a TFT (thin film transistor), or an IPS (transverse electric field switching) type. The liquid crystal composition used in these liquid crystal display elements is required to exhibit stability in terms of moisture, air, heat, light, etc., and to display a liquid crystal phase in a wide temperature range as wide as possible around a room temperature. Low viscosity and low drive voltage. Further, in order to optimize the dielectric anisotropy (Δε) or refractive index anisotropy (Δn) which are most suitable for each display element, the liquid crystal composition is composed of several kinds to several tens of kinds of compounds. Composition.

In a vertical alignment (VA) type display, a liquid crystal composition having a negative Δ ε is used, and in a horizontal alignment type display such as a TN type, an STN type, or an IPS (transverse electric field switching) type, a liquid crystal composition having a positive Δ ε is used. Things. Further, it has been reported that when the voltage is not applied, the liquid crystal composition having positive Δ ε is vertically aligned, and the driving mode is displayed by applying a lateral electric field, and the necessity of the liquid crystal composition having positive Δ ε is further increased. . On the other hand, in all driving methods, low voltage driving, fast response, and a wide operating temperature range are required. That is, it is required that 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. In addition, 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 of the liquid crystal composition to the gap of the liquid crystal layer and adjust it to an appropriate range. Further, when a liquid crystal display element is applied to a television or the like, a liquid crystal composition having a small rotational viscosity (γ ₁ ) is required because of importance of rapid reactivity.

In the configuration of the liquid crystal composition which is intended to be a rapid reactivity, for example, a compound represented by the following formula (A-1) or the following formula (A-2) which exhibits a liquid crystal compound having a positive combination Δε and Δ are disclosed. ε is a liquid crystal composition used for a compound represented by the following formula (B) which is a neutral liquid crystal compound. Among the characteristics of such liquid crystal compositions, a liquid crystal compound having a positive Δ ε has a -CF ₂ O-structure, and a liquid crystal compound having a Δ ε neutral phase has an alkenyl group, and is widely used in the field of liquid crystal compositions. It is known (refer patent documents 1-4).

On the other hand, the use of liquid crystal display elements has expanded. Significant changes have also been observed in the methods of use and methods of manufacture. In order to cope with such changes, it is required to optimize the characteristics other than the basic physical property values. In other words, a liquid crystal display element using a liquid crystal composition has been widely used, such as a VA type or an IPS type, and a display element having a size of 50 or more and a very large size has been put into practical use. With the increase in the size of the substrate, the method of injecting the liquid crystal composition into the substrate has become the mainstream of the injection method from the conventional vacuum injection method to the ODF (One Drop Fill) method. However, when the liquid crystal composition is dropped onto the substrate, the problem that the drop marks cause a decrease in display quality is revealed. Further, in the process of the liquid crystal display element of the ODF method, it is necessary to drip the optimum amount of liquid crystal in accordance with the size of the liquid crystal display element. When the deviation of the amount of dripping is larger than the optimum value, the balance of the refractive index or the driving electric field of the liquid crystal display element which is designed in advance may collapse, and display defects such as spots or poor contrast may occur. In particular, a small-sized liquid crystal display element widely used in recent popular smart phones has difficulty in controlling the offset of an optimum value within a certain range because the optimum liquid crystal dropping amount is a small amount. Therefore, in order to maintain high liquid crystal In the liquid crystal composition, for example, it is necessary to receive a drastic pressure change or a smear in the dripping device which occurs when the liquid crystal is dropped, and it is possible to continuously drip continuously for a long period of time.

Thus, active matrix drive driven by TFT elements or the like In the liquid crystal composition used for the liquid crystal display device, it is required to maintain the characteristics and performance required for the liquid crystal display element while maintaining rapid reaction performance, etc., in addition to the high specific resistance value, high voltage holding ratio, and light or heat which have been conventionally emphasized. In addition to the characteristics of the stability of the stimulus, development of the manufacturing method of the liquid crystal display element is also considered.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2008-037918

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2008-038018

[Patent Document 3] Japanese Laid-Open Patent Publication No. 2010-275390

[Patent Document 4] Japanese Patent Publication No. 2011-052120

The problem to be solved by the present invention is to provide a liquid crystal phase having a wide temperature range, which is small in viscosity, good in solubility at low temperatures, high in specific resistance or voltage retention, stable in heat or light, and difficult to cause marks or dripping marks. In the case of poor display, a liquid crystal composition having a positive Δ ε of a liquid crystal display element excellent in display quality and a liquid crystal display element using the liquid crystal composition can be produced with high yield.

The present inventors have examined various liquid crystal compounds and various chemical substances, and found that the above problems can be solved by combining specific liquid crystal compounds, and finally completed the present invention. That is, the first aspect of the present invention is the liquid crystal composition below, and the second aspect of the present invention is the liquid crystal element below.

[1] A liquid crystal composition containing one or more compounds represented by the following formula (i), and containing one or more compounds represented by the following formula (ii).

(wherein R ⁱ¹ and R ⁱⁱ¹ each independently represent an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent-CH ₂ - groups may independently be -CH= CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-, wherein one or two or more hydrogen atoms in the alkyl group are independently capable of being fluorine atoms or chlorine Atom substitution, m ⁱ¹ represents 0, 1 or 2, A ⁱ¹ represents a 1,4-phenyl group in which a hydrogen atom may be substituted by a fluorine atom or a chlorine atom, and when m ⁱ¹ is 2, A ⁱ¹ may be the same or different, X ^I1 represents a hydrogen atom, a fluorine atom or a chlorine atom, m ⁱⁱ¹ represents 0 or 1, and X ⁱⁱ¹ , X ⁱⁱ² , X ⁱⁱ³ and X ⁱⁱ⁴ each independently represent a hydrogen atom, a fluorine atom or a chlorine atom, and X ⁱⁱ⁵ represents a hydrogen atom or a fluorine atom. , chlorine atom, cyano group, -CF ₃ or -OCF ₃ ).

[2] The liquid crystal composition according to the above [1], which contains 2 The above compound represented by the above formula (ii).

[3] The liquid crystal composition according to the above [1] or [2], wherein the compound represented by the above formula (i) contains one or more of the following formula (i-1-1). ~(i-1-4), the following general formula (i-2-1) to (i-2-6) or the following general formula (i-3-1) to (i-3-8) compound of,

(wherein R ⁱ¹ represents the same meaning as R ⁱ¹ in the above formula (i)).

[4] The liquid crystal composition according to any one of the above [1] to [3], wherein the compound represented by the above formula (ii) contains one or more compounds having m ⁱⁱ¹ of 1.

[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 each independently represent an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent-CH ₂ - groups may independently be -CH =CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-substitution, OL means 0, 1, 2 or 3, B ^L1 , B ^L2 and B ^L3 are each independently represented Free (a) 1,4-cyclohexylene (one -CH ₂ - or two or more -CH ₂ - which are not adjacent in this group may be substituted into -O-) and (b) 1,4 a group in a group consisting of a phenyl group (one -CH= or a non-contiguous two or more -CH= can be substituted into -N=), the above group (a), One or two or more hydrogen atoms in the group (b) may be independently substituted by a cyano group, a fluorine atom or a chlorine atom, and L ^L1 and L ^L2 each independently represent 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-, when OL is 2 or 3 and L ^L2 is plural, they may be the same or different. When OL is 2 or 3 and B ^L3 is plural, Etc. can 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 - groups may independently be -CH=CH-, -C ≡C-, -O-, -CO-, -COO- or -OCO-substituted, PM represents 0, 1, 2, 3 or 4, and C ^M1 and C ^M2 are each independently selected from (d) 1, 4 - a cyclohexyl group (one -CH ₂ - or two or more -CH ₂ - which are not adjacent in this group may be substituted into -O- or -S-) and (e) 1,4-phenylene a group in the group consisting of one (CH============================================================================ One or more hydrogen atoms in the group may be independently substituted by a cyano group, a fluorine atom or a chlorine atom, and K ^M1 and K ^M2 each independently represent 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-, when PM is 2, 3 or 4 and K ^{When the} plural of ^M1 is present, they may be the same or different. When PM is 2, 3 or 4 and the complex of C ^M2 is present, they may be the same or different, and 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 atom, a chlorine atom , cyano, trifluoromethyl, fluoromethoxy, difluoromethoxy, trifluoromethoxy or 2,2,2-trifluoroethyl; however, the compound of the formula (i) Except for the compound represented by formula (ii)).

[7] A liquid crystal display device, which is 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 IPS mode, the OCB mode, the EB mode, the VA mode, the VA-IPS mode, or the FFS mode.

[9] A liquid crystal display using the liquid crystal display element according to [7] or [8] above.

The liquid crystal composition having positive dielectric anisotropy of the present invention has lower viscosity than conventional ones, and has good solubility at low temperatures, and its specific resistance or voltage holding ratio is changed by heat or light. Very small. Therefore, the liquid crystal composition of the present invention has high practicability (applicability) for a liquid crystal product, and a liquid crystal display element such as an IPS type or an FFS type using the liquid crystal composition can achieve a rapid reaction. In addition, the liquid crystal composition of the present invention can stably exhibit its performance even after passing through the process of the liquid crystal display element, and it is possible to suppress display defects caused by the process, and it is possible to manufacture a liquid crystal display element with high yield, which is very useful.

100‧‧‧1st substrate

102‧‧‧TFT layer

103‧‧‧ pixel electrodes

104‧‧‧passivation film

105‧‧‧1st alignment film

200‧‧‧2nd substrate

201‧‧‧Flating film (covering layer)

202‧‧‧Black matrix

203‧‧‧Color filters

203a‧‧‧Red color filter

203b‧‧‧Green color filter

203c‧‧‧Blue color filter

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. The substrate with 100~105 is called "backplane", and the substrate with 200~205 is called It is the "front plate".

Fig. 2 is a view showing an exposure processing step of using a columnar spacer formed on a black matrix as a mask pattern.

[Formation of the Invention]

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

The liquid crystal composition of the present invention contains one or more compounds represented by the following formula (i), and one or more compounds represented by the following formula (ii) are contained.

(wherein R ⁱ¹ and R ⁱⁱ¹ each independently represent an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent-CH ₂ - groups may independently be -CH= CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-, wherein one or two or more hydrogen atoms in the alkyl group are independently capable of being fluorine atoms or chlorine Atom substitution, m ⁱ¹ represents 0, 1 or 2, A ⁱ¹ represents a 1,4-phenyl group in which a hydrogen atom may be substituted by a fluorine atom or a chlorine atom, and when m ⁱ¹ is 2, A ⁱ¹ may be the same or different, X ^I1 represents a hydrogen atom, a fluorine atom or a chlorine atom, m ⁱⁱ¹ represents 0 or 1, and X ⁱⁱ¹ , X ⁱⁱ² , X ⁱⁱ³ and X ⁱⁱ⁴ each independently represent a hydrogen atom, a fluorine atom or a chlorine atom, and X ⁱⁱ⁵ represents a hydrogen atom or a fluorine atom. , chlorine atom, cyano group, -CF ₃ or -OCF ₃ ).

<Compound represented by the formula (i)>

In the above formula (i), R ^{i1 is} preferably a linear alkyl group having 1 to 8 carbon atoms or a linear alkenyl group having 2 to 8 carbon atoms, preferably 2 to 5 carbon atoms. The alkyl group of the chain or the linear alkenyl group having 2 to 5 carbon atoms is preferably a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group or a structure as described below.

(In the formula, the right end is bonded to the ring structure).

When the improvement of the reaction rate is emphasized, the alkenyl group is preferred, and when the reliability of the voltage holding ratio or the like when the liquid crystal composition is used is emphasized, the alkyl group is preferred. The alkyl group is preferably a propyl group.

The compound represented by the above formula (i) includes a compound represented by the formula (i-1).

(wherein, X ¹³² to X ¹³⁵ each independently represent a fluorine atom or a hydrogen atom, and R ⁱ¹ represents the same meaning as R ⁱ¹ in the above formula (i)).

Further, the compound represented by the formula (i-1) is preferably a compound represented by the formula (i-1-1) to (i-1-4).

Further, the compound represented by the formula (i-1-1) is preferably a compound represented by the formula (i-1-1.1) to (i-1-1.4).

Further, the compound represented by the formula (i-1-2) is preferably a compound represented by the formula (i-1-2.1) to (i-1-2.4).

Further, the compound represented by the formula (i-1-3) is preferably a compound represented by the formula (i-1-3.1) to (i-1-3.4).

Further, the compound represented by the formula (i-1-4) is preferably a compound represented by the formula (i-1-4.1) to (i-1-4.4).

In addition, examples of the compound represented by the above formula (i) include compounds represented by the formula (i-2).

(wherein, X ¹³¹ to X ¹³⁵ each independently represent a fluorine atom or a hydrogen atom, and R ⁱ¹ represents the same meaning as R ⁱ¹ in the above formula (i)).

The type of the compound which can be combined is not particularly limited, but it is preferably one to two kinds of these compounds, more preferably one to three, and particularly preferably one to four.

The content of the compound represented by the formula (i-2) is based on properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence, and has an upper limit and a lower limit in each embodiment.

For example, in one embodiment of the invention, In the total mass of the liquid crystal composition of the present invention, the content of the compound is 2 to 30% by mass, and in another embodiment, the content of the compound is 4 to 30% by mass. In still another embodiment, the compound is The content is 5 to 30% by mass, and in still another embodiment, the content of the compound is 6 to 30% by mass.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 2 to 30% by mass, and 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%. 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.

When the liquid crystal composition of the present invention is used, the gap between the liquid crystal layers is small When the liquid crystal display element is used, the content of the compound represented by the formula (i-2) is preferably slightly more. When it is used for a liquid crystal display element having a small driving voltage, the content of the compound represented by the formula (i-2) is preferably slightly more. Further, when it is used for a liquid crystal display element used in a low-temperature environment, the content of the compound represented by the formula (i-2) is preferably slightly more. When it is used for a liquid crystal composition of a liquid crystal display element having a high reaction speed, the content of the compound represented by the formula (i-2) is preferably slightly more.

Further, the compound represented by the formula (i-2) is preferably a formula The compound represented by (i-2-1) to (i-2-6) is preferably a compound represented by the formula (i-2-5).

For example, in one embodiment of the present invention, the content of the compound represented by the formula (i-2-5) is relative to the total mass of the liquid crystal composition of the present invention. In another embodiment, the content of the compound represented by the formula (i-2-5) is 4 to 20% by mass, and in still another embodiment, the formula (i-2-5) The content of the compound shown is 5 to 15% by mass, and in still another embodiment, the content of the compound represented by the formula (i-2-5) is 5 to 12% by mass.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound represented by the formula (i-2-5) is 2 to 10% by mass, and in another embodiment, the content of the compound represented by the formula (i-2-5) is 4 to 4%. In another embodiment, the content of the compound represented by the formula (i-2-5) is 5 to 15% by mass, and in still another embodiment, the formula (i-2-5) The content of the compound shown is 7 to 12% by mass, and in still another embodiment, the content of the compound represented by the formula (i-2-5) is 8 to 11% by mass.

Further, the compound represented by the formula (i-2-1) is preferably a formula (i-2-1.1) to a compound represented by the formula (i-2-1.4).

It is preferred to be the total mass of the liquid crystal composition of the present invention. The compound represented by the formula (i-2-2) containing 1% by mass or more and 25% by mass or less is more preferably 3% by mass or more and 25% by mass or less, and more preferably 5% by mass or more and 20% by mass or less. It is particularly preferably contained in an amount of 10% by mass or more and 15% by mass or less.

Further, the compound represented by the formula (i-2-2) is preferably a formula (i-2-2.1) to a compound represented by the formula (i-2-2.4).

Further, the compound represented by the formula (i-2-3) is preferably a formula (i-2-3.1) to a compound represented by the formula (i-2-3.4).

Further, the compound represented by the formula (i-2-4) is preferably a formula (i-2-4.1) to a compound represented by the formula (i-2-4.4).

Further, the compound represented by the formula (i-2-5) is preferably a formula The compound represented by the formula (i-2-5.1) to the formula (i-2-5.4) is preferably a compound represented by the formula (i-2-5.2).

It is preferred to be the total mass of the liquid crystal composition of the present invention. The compound represented by the formula (i-2-6) containing 2% by mass or more and 20% by mass or less is preferably contained in an amount of 4% by mass or more and 20% by mass or less, preferably 9% by mass or more and 17% by mass or less. It is preferably contained in an amount of 11% by mass or more and 14% by mass or less.

Further, the compound represented by the formula (i-2-6) is preferably a formula (i-2-6.1) to a compound represented by the formula (i-2-6.4).

Further, examples of the compound represented by the above formula (i) include A compound of the formula (i-3).

(wherein, X ¹⁰² to X ¹⁰⁵ each independently represent a fluorine atom or a hydrogen atom, and R ⁱ¹ represents the same meaning as R ⁱ¹ in the above formula (i)).

In one embodiment of the present invention, the content of the compound represented by the formula (i-3) is from 0.5 to 10% by mass based on the total mass of the liquid crystal composition of the present invention, and in another embodiment, the formula (i) The content of the compound represented by the formula (3) is 1 to 5% by mass, and in still another embodiment, the content of the compound represented by the formula (i-3) is 1 to 3% by mass.

Further, the compound represented by the formula (i-3) is preferably a formula The compound represented by (i-3-1) to (i-3-8) is preferably a compound represented by the formula (i-3-4).

Further, the compound represented by the formula (i-3-1) is preferably a formula (i-3-1.1) to a compound represented by the formula (i-3-1.4).

Further, the compound represented by the formula (i-3-2) is preferably a formula (i-3-2.1) to a compound represented by the formula (i-3-2.4).

Further, the compound represented by the formula (i-3-3) is preferably a formula (i-3-3.1) to a compound represented by the formula (i-3-3.4).

Further, the compound represented by the formula (i-3-4) is preferably a formula The compound represented by the formula (i-3-4.1) to the formula (i-3-4.4) is more preferably a compound represented by the formula (i-3-4.2).

General formula with respect to the total mass of the liquid crystal composition of the present invention The content of the compound represented by (i-3-4) is preferably 0.5% by mass or more. Moreover, the maximum ratio is preferably limited to 7% by mass or less, preferably 5% by mass or less, and preferably 3% by mass or less, in view of solubility at low temperature, transition temperature, electronic reliability, and the like.

Further, the compound represented by the formula (i-3-5) is preferably a formula (i-3-5.1) to a compound represented by the formula (i-3-5.4).

In one embodiment of the present invention, the content of the compound represented by the formula (i-3-5.4) is 0.5 to 10% 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 represented by (i-3-5.4) is 1 to 5% by mass, and in still another embodiment, the content of the compound represented by the formula (i-3-5.4) is 1 to 3% by mass.

Further, the compound represented by the formula (i-3-6) is preferably a formula (i-3-6.1) to a compound represented by the formula (i-3-6.4).

Further, the compound represented by the formula (i-3-7) is preferably a formula (i-3-7.1) to a compound represented by the formula (i-3-7.4).

Further, the compound represented by the formula (i-3-8) is preferably a formula (i-3-8.1) to a compound represented by the formula (i-3-8.4).

In the above, the compound represented by the above formula (i) preferably contains one or more of the following formulae (i-1-1) to (i-1-4), and the following A compound represented by the formula (i-2-1) to (i-2-6) or the following formula (i-3-1) to (i-3-8).

(wherein R ⁱ¹ represents the same meaning as R ⁱ¹ in the above formula (i)).

The types of compounds that can be combined are not particularly limited, but are based on solubility at low temperature, transition temperature, electron reliability, birefringence, and the like. The desired performance is used in combination. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, it is three or more types.

The content of the compound represented by the formula (i) must be in accordance with the low temperature The required properties such as solubility, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, and dielectric anisotropy are suitably adjusted.

The compound represented by the formula (i) is particularly preferably described above. A compound represented by the formula (i-2-5.2) and a compound represented by the formula (i-2-5.2).

<Compound represented by the formula (ii)>

In the above formula (ii), R ^{ii1 is} preferably an alkyl group having 1 to 8 carbon atoms or a linear alkenyl group having 2 to 8 carbon atoms, preferably a linear alkane having 2 to 5 carbon atoms. a linear or alkenyl group having 2 to 5 carbon atoms, preferably an ethyl group, a propyl group, a butyl group, a pentyl group or the like

(wherein, the right end is bonded to the ring structure), especially preferably ethyl Or propyl.

When the improvement of the reaction rate is emphasized, the alkenyl group is preferred, and when the reliability of the voltage holding ratio or the like when the liquid crystal composition is used is emphasized, the alkyl group is preferred.

In the above formula (ii), m ⁱⁱ¹ is 0 or 1, preferably 1.

The compound represented by the above formula (ii) is preferably a compound represented by the following formula (ii-1).

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at a low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one type or two types or more.

The content of the compound represented by the formula (ii-1) is considered to be low temperature. The characteristics of solubility, transition temperature, electron reliability, and birefringence are as follows, and there are upper limit values and lower limit values in each embodiment. For example, in one embodiment of the present invention, the content of the compound is 4 to 20% by mass based on the total mass of the liquid crystal composition of the present invention, and 5 to 15% by mass in another embodiment. In one embodiment, it is 5 to 13% by mass, and in still another embodiment, it is 7 to 12% by mass.

Further, for example, in one embodiment of the present invention, relative The content of the compound in the total mass of the liquid crystal composition of the present invention is 1 to 12% by mass, in another embodiment, 1 to 10% by mass, and in still another embodiment, 2 to 7% by mass. In still another embodiment, it is 3 to 5% by mass.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by the formula (ii-1) is specifically preferably a compound represented by the formula (ii-1.1) to the formula (ii-1.4), and preferably contains the formula (ii-1.1) and/or the formula (ii). -1.2) Compound shown.

In the liquid crystal composition of the present invention, the formula (ii-1.1) The content of the compound is preferably 1% by mass or more and 15% by mass or less, preferably 1% by mass or more and 10% by mass or less, and preferably 3% by mass or more and 8% by mass or less based on the total mass of the liquid crystal composition of the present invention. In the following, it is preferably 3% by mass or more and 5% by mass or less, and in another embodiment, it is preferably 5% by mass or more and 8% by mass or less.

In the liquid crystal composition of the present invention, the formula (ii-1.2) The content of the compound is preferably 1% by mass or more and 20% by mass or less, preferably 2% by mass or more and 15% by mass or less, and preferably 2% by mass or more and 10% by mass or less based on the total mass of the liquid crystal composition of the present invention. In the following, it is preferably 2% by mass or more and 5% by mass or less, and when the compound represented by the formula (ii-1.2) is contained as the compound represented by the formula (ii), it is preferably 5% by mass or more and 15% by mass or less. It is preferably 8 mass% or more and 12 mass% or less.

When only two kinds of the compound represented by the formula (ii-1.1) and the compound represented by the formula (ii-1.2) are used as the compound represented by the formula (ii), the liquid crystal composition of the present invention is used. Total mass, the total content of the two types is better It is 5% by mass or more and 15% by mass or less, preferably 7% by mass or more and 10% by mass or less.

The compound which can be combined is not particularly limited, but the liquid crystal composition of the present invention preferably contains one or more of the above compounds in which m ⁱⁱ¹ is 1 as the compound represented by the above formula (ii).

For example, it is preferred to contain a compound represented by the formula (ii-1.1) and/or the formula (ii-1.2).

The compound represented by the above formula (ii) may also be exemplified by the following a compound represented by the formula (ii-2).

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at a low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one type or two types or more.

The content of the compound represented by the formula (ii-2) is considered to be low temperature. The characteristics of solubility, transition temperature, electron reliability, and birefringence are as follows, and there are upper limit values and lower limit values in each embodiment. 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 5 to 30% by mass in another embodiment. In one embodiment, it is 6 to 30% by mass, and in still another embodiment, it is 8 to 30% by mass.

Further, for example, in one embodiment of the present invention, relative The content of the compound in the total mass of the liquid crystal composition of the present invention is 1 to 30% by mass, in another embodiment, 1 to 20% by mass, and in still another embodiment, 1 to 13% by mass. In still another embodiment, it is 1 to 10% by mass.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by the formula (ii-2) is specifically preferably a compound represented by the formula (ii-2.1) to the formula (ii-2.4), and preferably contains the formula (ii-2.1) and/or the formula (ii). -2.2) The compound shown.

There are no special restrictions on the compounds that can be combined, but this hair The liquid crystal composition of the present invention preferably contains two or more compounds represented by the above formula (ii).

For example, it is preferred to select one or more of the compounds represented by the formula (ii-1.1) to (ii-1.4) and the compound represented by the formula (ii-2.1) to (ii-2.4). One or two or more kinds of compounds are appropriately combined.

As the compound represented by the formula (i) and the formula (ii) The combination of the compounds is preferably a combination of a compound represented by the formula (i-3-4.2) and a compound represented by the formula (ii-1-2), a compound represented by the formula (i-3-4.2), and a formula (( a combination of a compound represented by ii-1-1) and a compound represented by formula (ii-1-2), a compound represented by formula (i-2-5.2), and a compound represented by formula (ii-1-2) a combination of compounds.

The liquid crystal composition of the present invention may contain one type or two or more types of compounds represented by the formula (L).

(wherein R ^L1 and R ^L2 each independently represent an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent-CH ₂ - groups may independently be -CH =CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-substitution, OL means 0, 1, 2 or 3, B ^L1 , B ^L2 and B ^L3 each independently represent free

(a) 1,4-cyclohexylene (one -CH ₂ - or two or more non-contiguous -CH ₂ - may be substituted to -O-) and (b) 1,4- a group in a group consisting of one phenyl group (one -CH= or two or more contiguous -CH=substitutable to -N=) present in the group, the above group (a), a group One or two or more hydrogen atoms in (b) may be independently substituted by a cyano group, a fluorine atom or a chlorine atom, and L ^L1 and L ^L2 each independently represent 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-, when OL is 2 or 3 and L ^L2 is plural, they may be the same or different. When OL is 2 or 3 and B ^L3 is plural, they are Can be the same or different).

The type of the compound which can be combined is not particularly limited, but is suitably used in combination according to the desired properties such as solubility at low temperature, transition temperature, electronic reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are 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. Furthermore, in another embodiment of the present invention, there are five types. Furthermore, in another embodiment of the present invention, there are six types. Furthermore, in another embodiment of the present invention, there are seven types. Furthermore, in another embodiment of the present invention, there are eight types. Furthermore, in another embodiment of the present invention, there are nine types. Furthermore, 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 above formula (L) must be in accordance with solubility at low temperature, transition temperature, electron reliability, birefringence, process suitability, dripping marks, branding, The required performance such as dielectric anisotropy is suitably 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. Alternatively, in another embodiment of the present invention, the content is 10 to 95% by mass. Furthermore, in another embodiment of the present invention, the content is 20 to 95% by mass. Furthermore, in another embodiment of the present invention, the content is 30 to 95% by mass. Furthermore, another implementation of the present invention In the form, the content is 40 to 95% by mass. Furthermore, in another embodiment of the present invention, the content is 50 to 95% by mass. Furthermore, in another embodiment of the present invention, the content is 55 to 95% by mass. Furthermore, in another embodiment of the present invention, the content is 60 to 95% by mass. Furthermore, in another embodiment of the present invention, the content is 65 to 95% by mass. Furthermore, in another embodiment of the present invention, the content is 70 to 95% by mass. Furthermore, 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.

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

In order to maintain the viscosity of the liquid crystal composition of the present invention, it is required In the case of a liquid crystal composition having a high reaction rate, it is preferred that the above lower limit value is higher and the upper limit value is higher. In addition, when the liquid crystal composition of the liquid crystal composition of the present invention is high and a liquid crystal composition having good temperature stability is required, it is preferable that the lower limit value is higher and the upper limit value is higher. Further, in order to increase the dielectric anisotropy in order to maintain a low driving voltage, it is preferable to lower the above lower limit. The value and the upper limit are lower.

R ^L1 and R ^L2 are preferably a linear alkyl group having 1 to 5 carbon atoms and a linear carbon number of 1 to 4 when the ring to which the ring is bonded is a phenyl group (aromatic). (or more) alkoxy group and alkenyl group having 4 to 5 carbon atoms, wherein the ring to which the bond is bonded is cyclohexane, megbrane 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 are preferable. An alkenyl group having 2 to 5 atoms.

When the chemical stability of the liquid crystal composition is required, the general formula (L) The compound shown preferably has no chlorine atoms in its 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 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; and each of A ¹¹ and A ¹² Independently, 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene or 3-fluoro-1,4-phenylene).

The kind of the compound which can be combined is not particularly limited, but it is suitably used in combination according to the required properties such as solubility at low temperature, transition temperature, electronic reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are 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. Furthermore, in another embodiment of the present invention, it is 5 More than one type. Furthermore, in another embodiment of the present invention, it is six or more types.

In the liquid crystal composition of the present invention, the formula (I) The content of the compound must be suitably adjusted according to the properties required at low temperature such as solubility, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 3 to 75% by mass in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, the content is 15 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 18 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 20 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 29 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 35 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 42 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 47 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 53 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 56 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 60 to 75% by mass. Furthermore, in another embodiment of the present invention, the content is 65 to 75% by mass.

In addition, 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. Furthermore, in another embodiment of the present invention, the content is 3 to 55 quality%. Furthermore, in another embodiment of the present invention, the content is 3 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 45% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is from 3 to 35% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 30% by mass.

In order to maintain the viscosity of the liquid crystal composition of the present invention, it is required In the case of a liquid crystal composition having a high reaction rate, it is preferred that the above lower limit value is higher and the upper limit value is higher. In addition, when the liquid crystal composition of the liquid crystal composition of the present invention is high and a liquid crystal composition having good temperature stability is required, it is preferable that the above lower limit value is moderate and the upper limit is moderate. Further, in order to increase the dielectric anisotropy in order to maintain a low driving voltage, it is preferable to lower the above-described lower limit value and the upper limit value is lower.

Further, the compound represented by the formula (I) is preferably a formula A compound selected from the group consisting of compounds represented by (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 kind of the compound which can be combined is not particularly limited, but it is suitably used in combination according to the required properties such as solubility at low temperature, transition temperature, electronic reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Or, in In another embodiment of the present invention, there are 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. Furthermore, in another embodiment of the present invention, it is five or more types.

In the liquid crystal composition of the present invention, the formula (I-1) The content of the compound must be appropriately adjusted in accordance with the properties required for solubility at low temperature, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy, and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, in one embodiment of the present invention, the content is from 3 to 70% by mass. Alternatively, in another embodiment of the present invention, the content is 15 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 18 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 25 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 29 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 31 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 35 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 43 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 47 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 50 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 53 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is 56 to 70% by mass.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound, for example, in one form of the present invention, the aforementioned content It is 3 to 70% by mass. Furthermore, in another embodiment of the present invention, the content is from 3 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 45% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is from 3 to 35% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 30% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 26% by mass.

In order to maintain the viscosity of the liquid crystal composition of the present invention, it is required In the case of a liquid crystal composition having a high reaction rate, it is preferred that the above lower limit value is higher and the upper limit value is higher. In addition, when the liquid crystal composition of the liquid crystal composition of the present invention is high and a liquid crystal composition having good temperature stability is required, it is preferable that the above lower limit value is moderate and the upper limit is moderate. Further, in order to increase the dielectric anisotropy in order to maintain a low driving voltage, it is preferable to lower the above-described lower limit value and the upper limit value is lower.

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

(wherein R ¹² each independently 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 5 carbon atoms).

In the liquid crystal composition of the present invention, the formula (I-1-1) is shown The content of the compound must be in accordance with the solubility at low temperature, the transition temperature The required performance of electronic reliability, birefringence, process suitability, dripping marks, branding, and dielectric anisotropy are suitably adjusted.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 2 to 60% by mass in one embodiment of the present invention. Alternatively, 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. Furthermore, in another embodiment of the present invention, the content is 11 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 13 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 15 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 17 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 20 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 25 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 30 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 32 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 35 to 60% by mass.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 2 to 60% by mass in one embodiment of the present invention. Further, in another embodiment of the present invention, the content is 2 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 2 to 40% by mass. Furthermore, 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% by mass. Furthermore, in another embodiment of the present invention, the content is 2 to 25% by mass. Furthermore, in the present invention In another embodiment, the content is 2 to 20% by mass. Furthermore, 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 of the formula The compound selected from the group consisting of the compounds represented by the formula (1.3) is preferably a compound represented by the formula (1.2) or the formula (1.3), and preferably a compound represented by the formula (1.3).

Compounds of formula (1.2) or formula (1.3) when each is isolated When used, the content of the compound represented by the formula (1.2) is slightly higher than that of the reaction rate, and the content of the compound represented by the formula (1.3) is in the range shown below, and the reaction rate is fast, electrons, A liquid crystal composition having high optical reliability is preferable.

It is preferred to be the total mass of the liquid crystal composition of the present invention. The compound represented by the formula (1.3) containing 3% by mass or more and 35% by mass or less is more preferably 4% by mass or more and 25% by mass or less, and particularly preferably 5% by mass or more and 20% by mass or less.

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

(wherein R ¹² each independently represents 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 types of compounds that can be combined are not particularly limited. However, it is suitably used in combination according to the desired properties such as solubility at low temperature, transition temperature, electronic reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, there are three types.

In the liquid crystal composition of the present invention, the formula (I-1-2) is shown The content of the compound must be appropriately adjusted in accordance with the properties required for solubility at low temperature, transition temperature, electronic reliability, birefringence, process suitability, dropping trace, branding, dielectric anisotropy, and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 7 to 60% by mass in one embodiment of the present invention. Alternatively, 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. Furthermore, in another embodiment of the present invention, the content is 21 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 24 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 27 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 30 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 34 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 37 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 41 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 47 to 60% by mass. Furthermore, in another embodiment of the present invention In the above, the content is 50 to 60% by mass.

Furthermore, the total mass of the liquid crystal composition relative to the present invention The content of the above compound is, for example, 7 to 60% by mass in one embodiment of the present invention. Furthermore, in another embodiment of the present invention, the content is 7 to 55% by mass. Furthermore, in another embodiment of the present invention, the content is 7 to 45% by mass. Furthermore, in another embodiment of the present invention, the content is 7 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 7 to 35% by mass. Furthermore, in another embodiment of the present invention, the content is 7 to 30% by mass. Furthermore, in another embodiment of the present invention, the content is 7 to 25% by mass. Furthermore, 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 of the formula The compound selected from the group consisting of the compounds represented by the formula (2.4) and the formula (2.4) is preferably a compound represented by the formula (2.2) to the formula (2.4). 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 the Tni which is required to be high is more preferable than the reaction rate, 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 20% or more in order to improve the solubility at a low temperature.

In the liquid crystal composition of the present invention, the formula represented by the formula (2.2) The content of the compound is preferably 5% by mass or more and 55% by mass based on the total mass of the liquid crystal composition of the present invention. More preferably, the content is 7% by mass or more and 47% by mass or less.

In the liquid crystal composition of the present invention, the formula (2.3) The content of the compound 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 more and 40% by mass or less.

In the liquid crystal composition of the present invention, the formula represented by the formula (2.4) The content of the compound 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 more and 40% by mass or less.

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

It is preferably in accordance with solubility at low temperature, transition temperature, electricity The content of the compound represented by the formula (2.5) is adjusted in accordance with the performance required for the sub-reliability, the birefringence, etc., and the compound is preferably contained in an amount of 11% by mass or more based on the total mass of the liquid crystal composition of the present invention. More preferably, it contains 15% by mass, more preferably 23% by mass, and even more preferably 26% by mass. The above is particularly preferably contained in an amount of 28% by mass or more.

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

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

The types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, there are three types.

In the liquid crystal composition of the present invention, the formula (I-2) The content of the compound must be appropriately adjusted in accordance with the properties required for solubility at low temperature, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy, and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 3 to 60% by mass in one embodiment of the present invention. Alternatively, 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. Furthermore, in another embodiment of the present invention, the content is 25 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 30 to 60% by mass. Furthermore, another in the present invention In one embodiment, the content is 35 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 38 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 40 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 42 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 45 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 47 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 50 to 60% by mass.

Furthermore, the total mass of the liquid crystal composition relative to the present invention The content of the above compound is, for example, 3 to 60% by mass in one embodiment of the present invention. Furthermore, in another embodiment of the present invention, the content is from 3 to 55% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 45% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 30% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 20% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 15% by mass. Furthermore, 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 of the formula The compound selected from the group consisting of the compounds represented by the formula (3.4) is preferably a compound represented by the formula (3.1), the formula (3.3) or the formula (3.4). 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 the Tni which is required to be high is more preferable than the reaction rate, it is preferred to use a compound represented by the formula (3.3) or the formula (3.4). Formula (3.3) and The content of the compound shown in (3.4) is preferably 20% or more in order to improve the solubility at a low temperature.

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

In the liquid crystal composition of the present invention, the formula (3.3) The content of the compound 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. More preferably, the content is 3% by mass or more and 40% by mass or less, 4% by mass or more and 40% by mass or less, or 3% by mass or more and 5% by mass or less, 3% by mass or more and 10% by mass or less, and 3% by mass or more. 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. 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 formula A compound selected from the group consisting of (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 types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, there are three types.

In the liquid crystal composition of the present invention, the formula (I-3) The content of the compound must be appropriately adjusted in accordance with the properties required for solubility at low temperature, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy, and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 3% by mass in one embodiment of the present invention. Alternatively, 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. Furthermore, in another embodiment of the present invention, the content is 25 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 30 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 35 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 38 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 40 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 42 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 45 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is It is 47 to 60% by mass. Furthermore, in another embodiment of the present invention, the content is 50 to 60% by mass.

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

When paying attention to the solubility at low temperatures, if you set it slightly more The amount is high, and conversely, when the reaction rate is emphasized, the effect is high if the content is set slightly. Further, in order to improve the dripping trace or the imprinting property, it is preferred to set the range of the content in the middle.

Further, the compound represented by the formula (I-3) is preferably of the formula (4.1) The compound selected from the group of compounds represented by formula (4.3) is preferably a compound represented by formula (4.3).

Relative to the total mass of the liquid crystal composition of the present invention, The content of the compound represented by (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, still more preferably 6% by mass or more and 30% by mass or less, and still more preferably 8% by mass or less. %% or more and 30% by mass or less, more preferably 10% by mass or more and 30% by mass or less, more preferably 12% by mass or more and 30% by mass or less, more preferably 14% by mass or more and 30% by mass or less, and still more preferably 16% by mass or more. 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 particularly preferably 22% by mass or more and 23% by mass or less.

Further, the compound represented by the formula (I) is preferably a formula A compound selected from the group consisting of compounds represented by (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 types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types.

In the liquid crystal composition of the present invention, the formula (I-4) The content of the compound must be in accordance with solubility at low temperature, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, and imprinting. The required performance such as dielectric anisotropy is appropriately adjusted.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 3 to 50% by mass in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, the content is 5 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 6 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 8 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 10 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 12 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 15 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 20 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 25 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 30 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 35 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 40 to 50% by mass.

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

When obtaining a high birefringence, if the content is set slightly The effect is high. Conversely, when a high Tni is emphasized, the effect is high if the content is set slightly. Further, in order to improve the dripping trace or the imprinting property, it is preferred to set the range of the content in the middle.

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

Relative to the total mass of the liquid crystal composition of the present invention, The content of the compound shown in (5.4) is preferably 2% by mass or more and 30% by mass or less. More preferably, the content is 4% by mass or more and 30% by mass or less, 65% 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, and 12% by mass or more. 5% by mass or less, 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, and 23% by mass or more and 30% by mass or less, 23 30% by mass or less, 24% by mass or more and 30% 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, and 4% by mass or more and 8 or more 5% 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 18% by mass or less, 4 The mass% or more is 20% by mass or less, 4% by mass or more and 22% by mass or less, 4% by mass or more and 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 formula A compound selected from the group consisting of (I-5).

(wherein R ¹¹ and R ¹² 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 types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types.

In the liquid crystal composition of the present invention, the formula (I-5) The content of the compound must be appropriately adjusted in accordance with the properties required for solubility at low temperature, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy, and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 1 to 50 in one embodiment of the present invention. quality%. Alternatively, in another embodiment of the present invention, the content is 5 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 8 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 11 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 13 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 15 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 17 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 20 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 25 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 30 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 35 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 40 to 50% by mass.

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

When paying attention to the solubility at low temperatures, if you set it slightly more The amount is high, and conversely, when the reaction speed is emphasized, if it is slightly less, The content is high. Further, in order to improve the dripping trace or the imprinting property, it is preferred to set the range of the content in the middle.

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

For example, the total mass of the liquid crystal composition relative to the present invention The content of the compound represented by the formula (6.3) 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, still more preferably 5% by mass or more and 30% by mass or less, more preferably 6 mass% or more and 30 mass% or less, more preferably 9% by mass or more and 30% by mass or less, more preferably 10% by mass or more and 30% by mass or less.

The liquid crystal composition of the invention of the present invention may further contain the formula (6.7)~ A compound represented by the formula (6.9).

It is preferably in accordance with solubility at low temperature, transition temperature, electricity The content of the compound represented by the formula (6.7) to the formula (6.9) is adjusted in accordance with the required properties of the sub-reliability, the birefringence, etc., and preferably contains 2 masses based on the total mass of the liquid crystal composition of the present invention. More preferably, the compound is contained in an amount of 3% by mass or more, more preferably 4% by mass or more, even 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 formula A compound selected from the group consisting of (I-6).

(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; and each of X ¹¹ and X ¹² The fluorine atom or the hydrogen atom is independently represented, and any of X ¹¹ or X ¹² is a fluorine atom).

General formula with respect to the total mass of the liquid crystal composition of the present invention The content of the compound represented by (I-6) 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, still more preferably 5% by mass or more and 30% by mass or less, 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, more preferably 12% by mass or more and 30% by mass or less, still more preferably 14% by mass or more and 30% by mass or less, and still more preferably 16% by mass or less % 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 particularly preferably 22% by mass The amount is more than 23% by mass.

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

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

(wherein R ¹¹ and R ¹² 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, and X ¹² each independently represents Fluorine or chlorine atom).

General formula with respect to the total mass of the liquid crystal composition of the present invention The content of the compound represented by (I-7) is preferably from 1% by mass to 30% by mass, more preferably from 2% by mass to 30% by mass, even more preferably from 3% by mass to 30% by mass, even more preferably 4% by mass or more and 30% by mass or less, more preferably 6% by mass or more and 30% by mass or less, more preferably 8% by mass or more and 30% by mass or less, still more preferably 10% by mass or more and 30% by mass or less, and still more preferably 12% by mass or less % or more is 30% by mass or less, 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 of the formula (8.1) The compound shown.

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

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

The types of compounds that can be combined are not particularly limited. However, it is preferred to combine one to three types in accordance with the required properties such as solubility at low temperature, transition temperature, electronic reliability, and birefringence.

The content of the compound represented by the formula (I-8) is required according to the solubility at low temperature, the transition temperature, the electron reliability, the birefringence, the process suitability, the dripping trace, the imprint, the dielectric anisotropy, and the like. The performance is preferably 5% by mass or more and 5% by mass or less, more preferably 10% by mass or more and 5% by mass or less, and still more preferably 15% by mass or more and 65% by mass or less based on the total mass of the liquid crystal composition of the present invention. More preferably, it is 20 mass% or more and 65 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, still more preferably 35% by mass or more and 65% by mass or less, more preferably It is 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 particularly preferably 55% by mass or more and 56% by mass or less.

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

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

(R ²¹ and R ²² each independently represent 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-extension ring; Hexyl or 1,4-phenylene, Q ² represents a single bond, -COO-, -CH ₂ -CH ₂ - or -CF ₂ O-).

The types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Further, in still another embodiment of the present invention, there are three types. Furthermore, in another embodiment of the present invention, it is four or more types.

In the liquid crystal composition of the present invention, the compound represented by the formula (II) The content of the compound must be suitably adjusted according to the properties required at low temperature such as solubility, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 3 to 50% by mass in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, the content is 5 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 7 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 10 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 14 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 16 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 20 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 23 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 26 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 30 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 35 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 40 to 50% by mass.

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

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

(R ²¹ and R ²² each independently represent 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).

The content of the compound represented by the formula (II-1) is preferably as per The performance at a low temperature, such as solubility, transition temperature, electronic reliability, and birefringence, is adjusted, and is preferably 4% by mass or more and 24% by mass or less, more preferably 8% by mass or more and 18% by mass or less. It is 12% by mass or more and 14% by mass or less.

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

Furthermore, the compound represented by the formula (II) is preferably, for example, A compound selected from the group consisting of compounds represented by formula (II-2).

(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 types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, it is two or more types.

In the liquid crystal composition of the present invention, the formula (II-2) The content of the compound must be appropriately adjusted in accordance with the properties required for solubility at low temperature, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy, and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 3 to 50% by mass in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, the content is 5 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 7 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 10 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 14 to 50% by mass. Furthermore, another in the present invention In one embodiment, the content is 16 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 20 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 23 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 26 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 30 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 35 to 50% by mass. Furthermore, in another embodiment of the present invention, the content is 40 to 50% by mass.

In addition, the content of the compound is, for example, 3 to 50% by mass in one embodiment of the present invention, based on the total mass of the liquid crystal composition of the present invention. Furthermore, in another embodiment of the present invention, the content is 3 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is from 3 to 35% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 30% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 20% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 15% by mass. Furthermore, in another embodiment of the present invention, the content is 3 to 10% by mass. Furthermore, 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, for example, a compound represented by the formula (11.1) to the formula (11.3).

According to solubility at low temperature, transition temperature, and reliable electronics The desired properties such as degree, birefringence, etc. may contain a compound represented by formula (11.1), or a compound represented by formula (11.2), or a compound represented by formula (11.1) and formula (11.2). Both of the compounds, or 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, and more 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. In particular, it is preferably 5% by mass or more and 30% by mass or less, particularly preferably 5% by mass or more and 25% by mass or less, and most preferably 5% by mass or more and 20% by mass or less.

Further, with respect to the total mass of the liquid crystal composition of the present invention, The content of the compound represented by the formula (11.1) is preferably 3% by mass or more and 40% by mass or less, more preferably 3% by mass or more and 35% by mass or less, still more preferably 3% by mass or more and 30% by mass or less, and particularly preferably 3 The mass% or more is 25% by mass or less, particularly preferably 3% by mass or more and 20% by mass or less, and most preferably 3% by mass or more and 15% by mass or less. In an optimum range, for example, it is 3% by mass or more and 17% by mass or less, and 5% by mass or more and 17% by mass or less.

Further, with respect to the total mass of the liquid crystal composition of the present invention, The content of the compound represented by the formula (11.2) is preferably 3% by mass or more and 40% by mass or less, more preferably 3% by mass or more and 35% by mass or less, still more preferably 3% by mass or more and 30% by mass or less, and even more preferably 3% by mass or more and 25% by mass or less, particularly preferably 3% by mass or more and 20% by mass or less, and most preferably 3% by mass or more and 15% by mass or less. In an optimum range, for example, it is 3% by mass or more and 12% by mass or less, and 3% by mass or more and 10% by mass or less.

When the compound of the formula (11.1) is contained and the formula (11.2) In the case of the above-mentioned compounds, the total mass of the compounds of the present invention is preferably 5% by mass or more and 45% by mass or less, more preferably 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. In the following, it is particularly preferably 5% by mass or more and 35% by mass or less, and particularly preferably 5% by mass or more and 30% by mass or less.

Furthermore, the compound represented by the formula (II) is preferably, for example, A compound selected from the group of compounds represented by formula (II-3).

(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 types of compounds that can be combined are not particularly limited. However, it is preferred to contain one to three kinds of these compounds in accordance with the properties required for solubility at low temperature, transition temperature, electron reliability, birefringence and the like.

The content of the compound represented by the formula (II-3) must be as low as possible The required properties such as solubility under temperature, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, and dielectric anisotropy are suitably adjusted. The content of the liquid crystal composition of the present invention is preferably, for example, 2 to 45% by mass based on the total mass of the liquid crystal composition of the present invention. More preferably, the content is 5 to 45% by mass, 8 to 45% by mass, 11 to 45% by mass, 14 to 45% by mass, 17 to 45% by mass, 20 to 45% by mass, and 23 to 45% by 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 masses Amount %, 2 to 20% by mass, 2 to 15% by mass, and 2 to 10% by mass.

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

According to solubility at low temperature, transition temperature, and reliable electronics The desired properties such as degree, birefringence, etc. may contain a compound represented by formula (12.1), or a compound represented by formula (12.2), or a compound represented by formula (12.1) and formula (12.2). The two of the compounds.

Relative to the total mass of the liquid crystal composition of the present invention, 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, more preferably 5% by mass or more and 40% by mass or less, and still more preferably 7% by mass or more and 40% by mass or less. More preferably, it is 9% by mass or more and 40% by mass or less, more preferably 11% by mass or more and 40% by mass or less, more preferably 12% by mass or more and 40% by mass or less, and particularly preferably 13% by mass or more and 40% by mass or less. It is 18% by mass or more and 30% by mass or less, and particularly preferably 21% by mass or more and 25% by mass or less. In addition, the content of the compound represented by the formula (12.2) is preferably 3% by mass or more and 40% by mass or less, more preferably 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. It is 8% by mass or more and 40% by mass or less, more preferably 10% by mass or more and 40% by mass or less, particularly preferably 12% by mass or more and 40% by mass or less, particularly preferably 15% by mass or more and 40% by mass or less, and particularly preferably 17% by mass. Quality above 30% % or less is particularly preferably 19% by mass or more and 25% by mass or less. 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 preferably 15% by mass based on the total mass of the liquid crystal composition of the present invention. The above 45 mass% or less is more preferably 19% by mass or more and 45% by mass or less, and particularly 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.

Further, with respect to the total mass of the liquid crystal composition of the present invention, 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, more preferably 0.1% by mass or more and 1% by mass or less, and particularly preferably 0.2% by mass or more and 0.5% by mass or less. The compound represented by the formula (12.3) may also be an optically active compound.

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

(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 types of compounds that can be combined are not particularly limited. However, it is preferable to contain one to three types of these compounds in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence.

The content of the compound represented by the formula (II-3-1) is preferably It is adjusted according to the required properties such as solubility at low temperature, transition temperature, electronic reliability, and birefringence, and is preferably 1% by mass or more and 24% by mass. The amount is preferably 4% by mass or more and 18% by mass or less, and more preferably 8% by mass or more and 14% by mass or less.

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

Furthermore, the compound represented by the formula (II) is preferably, for example, A compound selected from the group consisting of compounds represented by formula (II-4).

(R ²¹ and R ²² each independently represent 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).

It may contain only one of these compounds, and may also contain Two or more types are preferably combined as appropriate in accordance with the required properties. The kind of the compound which can be combined is not particularly limited, but it is preferably one of these compounds in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type is particularly good for one to three types.

General formula with respect to the total mass of the liquid crystal composition of the present invention The content of the compound represented by (II-4) is preferably 1% by mass or more and 15% by mass or less, more preferably 2% by mass or more and 15% by mass or less, still more preferably 3% by mass or more and 15% by mass or less, more preferably 4% by mass or more and 12% by mass or less, and particularly preferably 5% by mass or more and 7% by mass or less.

Further, the compound represented by the formula (II-4) is preferably, for example, a formula The compound represented by the formula (14.5) to the formula (14.5) is particularly preferably a compound represented by the formula (14.2) or the formula (14.5).

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

(R ³¹ and R ³² each independently represent 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).

The content of the compound represented by the formula (III) is considered as desired The solubility, the birefringence, and the like of the liquid crystal composition of the present invention are 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 based on the total mass of the liquid crystal composition of the present invention. It is contained in an amount of 8 mass% or more and 15 mass% or less.

Further, the compound represented by the formula (III) is preferably, for example, a formula (15.1) The compound represented by the formula (15.3) is particularly preferably a compound represented by the formula (15.3).

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

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

The compound represented by the formula (III-1) is preferably in a low temperature The content of the lower solubility, conversion temperature, electronic reliability, and birefringence is adjusted to be 4% by mass or more and 23% by mass or less, more preferably 6% by mass or more and 18% by mass or less. It is preferably 10% by mass or more and 13% by mass or less.

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

Further, the compound represented by the formula (III) is preferably a formula A compound selected from the group consisting of compounds represented by (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 as defined It is adjusted according to the required performance such as solubility at low temperature, transition temperature, electronic reliability, and birefringence, and is preferably 4% by mass or more and 23% by mass or less, more preferably 6% by mass or more and 18% by mass or less. It is preferably 10% by mass or more and 13% by mass or less.

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

Further, the compound represented by the formula (L) is preferably a formula The compound selected from the group shown in (IV).

(wherein R ⁴¹ and R ⁴² each independently represent 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 each independently represent a hydrogen atom or a fluorine atom).

The types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of the present invention, there are four types. Furthermore, in another embodiment of the present invention, there are five types. Furthermore, in another embodiment of the present invention, it is six or more types.

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

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

The content of the compound represented by the formula (IV-1) must be in accordance with The properties required at low temperatures such as solubility, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, and dielectric anisotropy are suitably adjusted.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 1 to 40% by mass in one embodiment. Furthermore, in another embodiment of the present invention, the content is 2 to 40% by mass. Furthermore, 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% by mass. Furthermore, in another embodiment of the present invention, the content is 8 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 10 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 12 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 15 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 18 to 40% by mass. Furthermore, 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, relative The content of the above compound is from 1 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. Furthermore, in another embodiment of the present invention, the content is 1 to 30% by mass. Furthermore, in another embodiment of the present invention, the content is 1 to 25% by mass. Furthermore, in another embodiment of the present invention, the content is 1 to 20% by mass. Furthermore, in another embodiment of the present invention, the content is 1 to 15% by mass. Furthermore, in another embodiment of the present invention, the content is 1 to 10% by mass. Furthermore, in another embodiment of the present invention, the content is 1 to 5% by mass. Furthermore, in another embodiment of the present invention, the content is 1 to 4% by mass.

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

The types of compounds that can be combined are not particularly limited. However, it is preferred to contain one to three kinds of these compounds, and more preferably one to four types. Further, since the molecular weight distribution of the selected compound is also effective in solubility, for example, one of the compounds represented by the formula (18.1) or (18.2), and the formula (18.4) or (18.5) are preferably selected. One of the compounds shown, one of the compounds of the formula (18.6) or the formula (18.7), and one of the compounds of the formula (18.8) or (18.9) are suitably combined. Wait.

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

(wherein R ⁴⁵ and R ⁴⁶ each independently represent an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms; but at least one of the alkenyl groups having 2 to 5 carbon atoms; X ⁴¹ And X ⁴² each independently represents a hydrogen atom or a fluorine atom).

The types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence.

The content of the compound represented by the formula (IV-2) must be in accordance with The properties required at low temperatures such as solubility, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, and dielectric anisotropy are suitably 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. The more preferable content is, 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% 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% by mass, 1 to 5 mass%, 1 to 4 mass%.

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

As a component of the liquid crystal composition, due to the selected combination The molecular weight distribution of the substance is also effective in solubility. Therefore, for example, it is preferred to select one of the compounds represented by the formula (19.1) or (19.2) and the compound represented by the formula (19.3) or (19.4). One of the compounds of the formula (19.5) or the formula (19.6), and one of the compounds of the formula (19.7) or (19.8) are appropriately combined.

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

(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; and each of A ⁵¹ and A ⁵² Independently, it represents 1,4-cyclohexylene or 1,4-phenylene, Q ⁵ represents a single bond or -COO-, and X ⁵¹ and X ⁵² each independently represent a fluorine atom or a hydrogen atom).

The types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of the present invention, there are four types.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 2 to 40% by mass in one embodiment. Furthermore, 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 7 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 10 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 12 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 15 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 17 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 18 to 40% by mass. Furthermore, in another embodiment of the present invention, the content is 20 to 40% by mass. Furthermore, 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, relative The content of the above compound is 2 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. Furthermore, in another embodiment of the present invention, the content of the compound is from 2 to 30% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is 2 to 25% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is 2 to 20% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 2 to 15% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 2 to 10% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is 2 to 5% by mass. Furthermore, 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 formula The compound shown by (V-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; and each of X ⁵¹ and X ⁵² Independently represents a fluorine atom or a hydrogen atom).

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

It is preferred to be the total mass of the liquid crystal composition of the present invention. The compound represented by the formula (V-1-1) containing 1% by mass or more and 15% by mass or less is more preferably 2% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less. .

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

In the liquid crystal composition of the present invention, the formula represented by the formula (20.2) The content of the compound is preferably 1% by mass or more and 20% by mass or less, more preferably 2% by mass based on the total mass of the liquid crystal composition of the present invention, in consideration of solubility at a low temperature, a transition temperature, and electron reliability. %% or more and 15% by mass or less, particularly preferably 3% by mass or more and 10% by mass or less, particularly preferably 3% by mass or more and 7% by mass or less.

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

It is preferred to be the total mass of the liquid crystal composition of the present invention. The compound represented by the formula (V-1-2) containing 1% by mass or more and 15% by mass or less is more preferably 2% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less. .

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

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

It is preferred to be the total mass of the liquid crystal composition of the present invention. The compound represented by the formula (V-1-3) containing 1% by mass or more is more preferably 2% by mass or more, more preferably 3% by mass or more, and particularly preferably 4% by mass or more. Further, the ratio which can be contained at the maximum is preferably 15% by mass or less, more preferably 10% by mass or less, and still more preferably 8% by mass or less.

Furthermore, the compound represented by the formula (V-1-3) is a formula (22.1) To the compound shown by formula (22.3). A compound represented by the formula (22.1) is preferred.

Further, the compound represented by the formula (V) is preferably a formula The compound shown in (V-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; and each of X ⁵¹ and X ⁵² Independently represents a fluorine atom or a hydrogen atom).

The types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, it is two or more types.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 2 to 40% by mass in one embodiment. Furthermore, in another embodiment of the present invention, the content of the compound is 4 to 40% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 7 to 40% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 10 to 40% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 12 to 40% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is 15 to 40% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 17 to 40% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 18 to 40% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 20 to 40% by mass. Furthermore, 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, relative The content of the above compound is 2 to 40% by mass based on the total mass of the liquid crystal composition of the present invention. Furthermore, in another embodiment of the present invention, the content of the compound is from 2 to 30% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is 2 to 25% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is 2 to 20 the amount%. Furthermore, in another embodiment of the present invention, the content of the compound is from 2 to 15% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 2 to 10% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is 2 to 5% by mass. Furthermore, in another embodiment of the present invention, the content of the compound is from 2 to 4% by mass.

It is desirable that the liquid crystal composition of the present invention be implemented as a high Tni In the case of the form, it is preferred that the content of the compound represented by the formula (V-2) is slightly larger, and when it is desired to have a low viscosity embodiment, the content is preferably slightly less.

Further, the compound represented by the formula (V-2) is preferably a formula The compound shown in (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 formula The compound represented by the formula (23.1) to the formula (23.4) is preferably a compound represented by the formula (23.1) or/and the formula (23.2).

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

Further, the compound represented by the formula (V) is preferably a formula The compound shown in (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 types of compounds that can be combined are not particularly limited. However, they are combined in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, it is three or more types.

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

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

The liquid crystal composition of the present invention may further contain one type or two types The compound represented by the above formula (VI).

(wherein R ⁶¹ and R ⁶² each independently represent 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 types of compounds that can be combined are not particularly limited. However, it is preferable to contain one to three kinds of these compounds, and more preferably one to four types, depending on the properties required for solubility at low temperature, transition temperature, electron reliability, and birefringence. It is particularly preferable to contain one to five types or more. Further, the ratio which can be contained at the maximum is preferably 35% by mass or less, more preferably 25% by mass or less, and still more preferably 15% by mass or less.

The compound represented by the formula (VI) can be suitably used as appropriate The compounds listed below.

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

(wherein R ⁷¹ and R ⁷² each independently represent 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 kind of the compound which can be combined is not particularly limited, but it is preferably one type of these compounds in accordance with the required properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type is preferably one to four types, and more preferably one to five types. Further, the ratio which can be contained at the maximum is preferably 35% by mass or less, more preferably 25% by mass or less, and still more preferably 15% by mass or less.

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

The liquid crystal composition of the present invention preferably also contains the general formula (M) The compound shown.

(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 - groups may independently be -CH=CH-, -C ≡C-, -O-, -CO-, -COO- or -OCO-substituted, PM represents 0, 1, 2, 3 or 4, and C ^M1 and C ^M2 each independently represent

(d) 1,4-cyclohexylene (one -CH ₂ - or two or more -CH ₂ - which are not adjacent in this group may be substituted into -O- or -S-) and (e) a group in the group consisting of 1,4-phenylene (one -CH= or two or more non-contiguous -CH= can be substituted into -N=), the above group ( d), one or two or more hydrogen atoms in the group (e) may be independently substituted by a cyano group, a fluorine atom or a chlorine atom, and K ^M1 and K ^M2 each independently represent 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-, when PM is 2 When 3, 4 or 4 and K ^M1 are plural, they may be the same or different. When PM is 2, 3 or 4 and C ^M2 is plural, they may be the same or different, X ^M1 and X ^M3 respectively Independently represents a hydrogen atom, a chlorine atom or a fluorine atom, and X ^M2 represents a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a fluoromethoxy group, a difluoromethoxy group, a trifluoromethoxy group or 2 2,2-trifluoroethyl; except for the compound of the formula (i) and the compound of the formula (ii).

The kind of the compound which can be combined is not particularly limited, but is used in combination according to the desired properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of the present invention, there are four types. Furthermore, in another embodiment of the present invention, there are five types. Furthermore, in another embodiment of the present invention, there are six types. Furthermore, In another embodiment of the present invention, it is 7 or more types.

In the liquid crystal composition of the present invention, the formula (M) is represented. The content of the compound must be suitably adjusted according to the properties required at low temperature such as solubility, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 1 to 95% by mass in one embodiment 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 from 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 from 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, with respect to the total mass of the liquid crystal composition of the present invention, The content of the aforementioned compound is, for example, in one embodiment of the present invention 1 to 95% by mass. Furthermore, 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 order to maintain the viscosity of the liquid crystal composition of the present invention, it is required In the case of a liquid crystal composition having a high reaction rate, it is preferred that the lower limit value is slightly lower and the upper limit value is slightly lower. In addition, when the liquid crystal composition of the liquid crystal composition of the present invention is high and a liquid crystal composition having good temperature stability is required, it is preferable that the lower limit value is slightly lower and the upper limit value is slightly lower. Further, in order to increase the dielectric anisotropy in order to maintain a low driving voltage, it is preferable that the lower limit is slightly higher and the upper limit is slightly higher.

R ^M1 is preferably a linear alkyl group having 1 to 5 carbon atoms and a linear alkoxy group having 1 to 4 carbon atoms when the ring to which the ring is bonded is a phenyl group (aromatic). And an alkenyl group having 4 to 5 carbon atoms, wherein 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 preferable. Alkenyl.

a compound represented by the formula (M), which requires a liquid crystal composition In the case of chemical stability, it is preferred that there is no chlorine atom in its molecule. Further, the compound having a chlorine atom in the liquid crystal composition is preferably 5% or less, preferably It is 3% or less, preferably 1% or less, preferably 0.5% or less, and preferably substantially not contained. The compound which is not substantially contained, that is, a compound which is not intended to be produced as an impurity in the production of a compound, means that only a compound containing a chlorine atom is mixed into the liquid crystal composition.

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

(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 each independently represent a hydrogen atom or A fluorine atom, Y ⁸ represents a fluorine atom or -OCF ₃ ).

The types of compounds that can be combined are not particularly limited. However, it is used in combination according to the desired properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, it is three or more types.

In the liquid crystal composition of the present invention, the formula (VIII) The content of the compound must be appropriately adjusted in accordance with the properties required for solubility at low temperature, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy, and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 2 to 40 in one embodiment of the present invention. quality%. Further, for example, in another embodiment of the present invention, the content of the compound is from 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 from 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 from 23 to 40% by mass.

Further, with respect to the total mass of the liquid crystal composition of the present invention, The content of the above compound is, for example, 2 to 40% by mass in one embodiment of the present invention. Furthermore, in another embodiment of the present invention, the content of the compound is from 2 to 30% by mass. In still another embodiment of the present invention, the content of the compound is from 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. In still another embodiment of the present invention, the content of the compound is 2 to 16 quality%. 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 from 2 to 5% by mass.

In order to maintain the viscosity of the liquid crystal composition of the present invention, it is required In the case of a liquid crystal composition having a high reaction rate, it is preferred that the lower limit value is slightly lower and the upper limit value is slightly lower. Further, when the liquid crystal composition of the liquid crystal composition of the present invention is high and a liquid crystal composition having good temperature stability is required, it is preferred that the lower limit value is slightly lower and the upper limit value is slightly lower. Further, in order to increase the dielectric anisotropy in order to maintain a low driving voltage, it is preferable to make the above-described lower limit value slightly higher and the upper limit value to be slightly higher.

Further, the compound represented by the formula (VIII) is preferably a formula The compound shown in (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 types of compounds that can be combined are not particularly limited. However, it is used in combination according to the desired properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, it is two or more types.

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

The content of the compound represented by formula (26.2) is considered at low temperature. The solubility, the transition temperature, the electron reliability, the birefringence, and the like are preferably 2% by mass or more and 40% by mass or less, and more preferably 3% by mass or more and 30% by mass or less based on the total mass of the liquid crystal composition of the present invention. In the following, it is particularly preferably 3% by mass or more and 20% by mass or less, and particularly preferably 3% by mass or more and 15% by mass or less.

Further, the compound represented by the formula (VIII) is preferably a formula The compound shown in (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 types of compounds that can be combined are not particularly limited. However, it is used in combination according to the desired properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, 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 (VIII-2) is considered to be low The solubility in the temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably 2.5% by mass or more and 25% by mass or less, preferably 8% by mass or more and 25% by mass or less, and more preferably 10% by mass or more. The mass% or less is particularly preferably 12% by mass or more and 15% by mass or less.

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

Further, the compound represented by the formula (M) is preferably a formula The compound shown in (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 types of compounds that can be combined are not particularly limited. However, it is used in combination according to the desired properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types.

Further, the compound represented by the formula (VIII-3) is specifically preferably 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), more preferably a compound represented by the formula (26.12).

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

(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 each independently represent 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 types of compounds that can be combined are not particularly limited. However, it is used in combination according to the desired properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Furthermore, in another embodiment of the present invention, there are four types. Furthermore, in another embodiment of the present invention, there are five types. Furthermore, in another embodiment of the present invention, it is six or more types.

In the liquid crystal composition of the present invention, the formula (IX) The content of the compound must be appropriately adjusted in accordance with the properties required for solubility at low temperature, transition temperature, electronic reliability, birefringence, process suitability, dripping marks, branding, dielectric anisotropy, and the like.

Relative to the total mass of the liquid crystal composition of the present invention, the foregoing The content of the compound is, for example, 3 to 70% by mass in one embodiment of the present invention. Further, for example, in another embodiment of the present invention, the content of the compound is from 5 to 70% by mass. For example, in the present invention, In the embodiment, 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 from 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. Furthermore, in another embodiment of the present invention, the content of the compound is from 3 to 60% by mass. In still another embodiment of the present invention, the content of the 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 aforementioned compound is 3 to 45 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. In 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.

In order to maintain the viscosity of the liquid crystal composition of the present invention, it is required In the case of a liquid crystal composition having a high reaction rate, it is preferred that the lower limit value is slightly lower and the upper limit value is slightly lower. Further, when the liquid crystal composition of the liquid crystal composition of the present invention is high and a liquid crystal composition which is less likely to be imprinted is required, it is preferable that the lower limit value is slightly lower and the upper limit value is slightly lower. Further, in order to increase the dielectric anisotropy in order to maintain a low driving voltage, it is preferable that the lower limit is slightly higher and the upper limit is slightly higher.

Further, the compound represented by the formula (IX) is preferably a formula The compound shown in (IX-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; X ⁹² represents a hydrogen atom or a fluorine atom, and Y ⁹ represents Fluorine atom or -OCF ₃ ).

The types of compounds that can be combined are not particularly limited. However, it is used in combination according to the desired properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, there are three types. Further, 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 formula The compound shown in (IX-1-1).

(In the formula, 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 types of compounds that can be combined are not particularly limited. However, it is used in combination according to the desired properties such as solubility at low temperature, transition temperature, electron reliability, and birefringence. The type of the compound to be used is, for example, one type in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of the present invention, it is three or more types.

The content of the compound represented by the formula (IX-1-1) is considered to be low. The solubility in temperature, the transition temperature, the electron reliability, the birefringence, and the like have a preferred upper limit and lower limit according to the embodiment.

For example, the total mass of the liquid crystal composition relative to the present invention The content of the above compound is 1 to 40% by mass in one embodiment, 2 to 40% by mass in another embodiment, and 4 to 40% by mass in still another embodiment, and yet another In the embodiment, it is 10 to 40% by mass, and in still another embodiment, it is 14 to 40% by mass, and in still another embodiment, it is 16 to 40% by mass.

Also, for example, with respect to the total of the liquid crystal composition of the present invention The mass of the compound is from 1 to 40% by mass in one embodiment, from 1 to 35% by mass in another embodiment, and from 1 to 30% by mass in still another embodiment, and yet another In one embodiment, it is 1 to 25% by mass.

Further, the compound represented by the formula (IX-1-1) is preferably a formula The compound represented by the formula (28.1) to the formula (28.5) is preferably a compound represented by the formula (28.3) or the formula (28.5).

In the liquid crystal composition of the present invention, the formula (28.3) is represented. The content of the compound is preferably 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 a low temperature, a transition temperature, and electron reliability. More preferably, the 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, or 4% by mass. % or more and 20% by mass or less, 6 mass% or more and 20 mass% or less, and 8 mass% or more and 20 mass% or less.

In the liquid crystal composition of the present invention, the formula represented by the formula (28.5) The content of the compound is considered to be solubility at a low temperature, a transition temperature, an electron reliability, and the like, and is preferably 3% by mass or more and 25% by mass or less, more preferably 3% by mass based on the total mass of the liquid crystal composition of the present invention. % or more is 20% by mass or less, and particularly 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.

The compound represented by the formula (IX-1) is preferably a formula The compound shown by (IX-1-2).

(In the formula, 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).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to three types, and more preferably one to four types.

The content of the compound represented by the formula (IX-1-2) is considered to be low The solubility in the temperature, the transition temperature, the electron reliability, and the like are preferably 1% by mass or more and 30% by mass or less, and more preferably 5% by mass or more and 30% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is particularly preferably 8% by mass or more and 30% by mass or less, more preferably 10% by mass or more and 25% by mass or less, particularly preferably 14% by mass or more and 22% by mass or less, and particularly preferably 16% by mass or more and 20% by mass or less.

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

Further, the compound represented by the formula (IX) is preferably a formula The compound shown in (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 each independently represent a hydrogen atom or A fluorine atom, Y ⁹ represents a fluorine atom, a chlorine atom or -OCF ₃ ).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are suitably used in combination for each embodiment. For example, in one embodiment of the present invention, there are one type, and in another embodiment, two types, in another embodiment, three types, and in still another embodiment, four types, and further In another embodiment, there are five types, and in still another embodiment, six or more types are combined.

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

(In the formula, 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).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to three kinds of combinations.

The content of the compound represented by the formula (IX-2-1) is considered to be low. Temperature solubility, transition temperature, electronic reliability, birefringence, etc. The characteristics have a preferred upper limit and lower limit in each embodiment.

For example, in one embodiment of the invention, The total mass of the liquid crystal composition of the present invention is from 1 to 40% by mass based on the total amount of the compound. In another embodiment, the content of the compound is 2 to 40% by mass, and 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 In another embodiment, the content of the compound is 14 to 40% by mass, and in still another embodiment, the content of the compound is 16 to 40% by mass. In another embodiment, the content of the compound is from 21 to 40% by mass.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 1 to 40% by mass, and in another embodiment, the content of the compound is 1 to 35% by mass, and in still another embodiment, the content of the compound is 1 to 30%. 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, and 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 another embodiment, the content of the compound is 1 to 7 In still another embodiment, the content of the compound is 1% by mass to 5% by mass.

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

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

(In the formula, 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).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to three kinds of combinations, and more preferably one to four types.

The content of the compound represented by the formula (IX-2-2) is considered to be low The properties such as solubility, temperature, electron reliability, and birefringence at room temperature have upper and lower limits for each embodiment. 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 another embodiment, the content of the compound is from 2 to 40% by mass. %.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 1 to 40% by mass, and in another embodiment, the content of the compound is 1 to 35% by mass, and in still another embodiment, the content of the compound is 1 to 30%. % by mass, in yet another embodiment, the content of the aforementioned compound is 1 to 25% by mass In still another embodiment, the content of the compound is from 1 to 22% by mass, and in still another embodiment, the content of the compound is from 1 to 15% by mass, and in still another embodiment, The content of the aforementioned compound is from 1 to 12% by mass.

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

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

(In the formula, 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).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two kinds of combinations.

The content of the compound represented by the formula (IX-2-3) is considered to be low. The solubility in the temperature, the transition temperature, the electron reliability, and the like are preferably 1% by mass or more and 30% by mass based on the total mass of the liquid crystal composition of the present invention. In the following, it is more preferably 3% by mass or more and 20% by mass or less, and particularly preferably 6% by mass or more and 15% by mass or less, and particularly preferably 8% by mass or more and 10% by mass or less.

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

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

(In the formula, 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 considered to be low The solubility in the temperature, the transition temperature, the electronic reliability, and the like are preferably 1% by mass or more and 30% by mass or less, and more preferably 3% by mass or more and 20% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is particularly preferably 6% by mass or more and 15% by mass or less, and particularly preferably 8% by mass or more and 10% by mass or less.

Further, the compound represented by the formula (IX-2-4) is preferably a formula (33.1) to a compound represented by the formula (33.6), preferably a formula (33.1) and/or a formula (33.3) The compound shown.

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

(In the formula, 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).

There are no restrictions on the types of compounds that can be combined, but the test is The solubility, the transition temperature, the electron reliability, the birefringence, and the like at a low temperature are preferably used in combination for each embodiment. For example, one of the present invention In one embodiment, it is one type, and in another embodiment, it is two types, and in another embodiment, it is three types, and in still another embodiment, it is four types or more.

The content of the compound represented by the formula (IX-2-5) is considered to be low The properties such as solubility, temperature, electron reliability, and birefringence at room temperature have upper and lower limits for each embodiment. 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 in another embodiment, the content of the compound is 8 to 45 mass. In still another embodiment, the content of the compound is 12 to 45% by mass, and in still another embodiment, the content of the compound is 21 to 45% by mass, and 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 another embodiment, the content of the compound is 34 to 45% by 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 another embodiment, the content of the compound is 4 to 35 mass%, and in still another embodiment, the content of the compound is 4 to 32 mass%, and in still another embodiment, the content of the compound In 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 further In another embodiment, the content of the compound is 4 to 8% by mass, and in still another embodiment, the content of the compound is 4 to 5% by mass.

In order to maintain the viscosity of the liquid crystal composition of the present invention, it is required In the case of a liquid crystal composition having a high reaction rate, it is preferred that the lower limit value is slightly lower and the upper limit value is slightly lower. Further, when the liquid crystal composition of the liquid crystal composition of the present invention is high and a liquid crystal composition which is less likely to be imprinted is required, it is preferable that the lower limit value is slightly lower and the upper limit value is slightly lower. Further, in order to increase the dielectric anisotropy in order to maintain a low driving voltage, it is preferable that the lower limit is slightly higher and the upper limit is slightly higher.

Further, the compound represented by the formula (IX-2-5) is preferably a formula The compound represented by the formula (34.1) to the formula (34.7) is preferably a compound represented by the formula (34.1), the formula (34.2), the formula (34.3) and/or the formula (34.5).

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

(wherein R ⁹ represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and X ⁹¹ and X ⁹² each independently represent a hydrogen atom or a fluorine atom, and Y ⁹ represents a fluorine atom or a chlorine atom. Or -OCF ₃ ).

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

(In the formula, 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).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two kinds of combinations.

The content of the compound represented by the formula (IX-3-1) is considered to be low. The solubility in the temperature, the transition temperature, the electronic reliability, and the like are preferably 3% by mass or more and 30% by mass or less, and more preferably 7% by mass or more and 30% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is particularly preferably 13% by mass or more and 20% by mass or less, and particularly preferably 15% by mass or more and 18% by mass or less.

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

Further, the compound represented by the formula (M) is preferably a formula (X) The compound shown.

(wherein, X ¹⁰¹ to X ¹⁰⁴ each independently represent 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 each independently represent a 1,4-cyclohexylene group and a 1,4-stretching group. Phenyl or However, the hydrogen atom on the 1,4-phenylene group may be substituted by a fluorine atom; except for the compounds represented by the above formula (i) and the above formula (ii).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are appropriately combined for each embodiment. For example, in one embodiment of the present invention, it is one type. Further, in another embodiment of the present invention, there are two types. In still another embodiment, there are three types. In still another embodiment, there are four types. In still another embodiment, it is five or more types.

The content of the compound represented by the formula (X) is considered at a low temperature The characteristics of solubility, transition temperature, electronic reliability, and birefringence have an upper limit and a lower limit in each embodiment. For example, in one embodiment of the present invention, the total mass of the liquid crystal composition relative to the present invention The content of the compound is 2 to 45% by mass. In another embodiment, the content of the compound is 3 to 45% by mass. In still another embodiment, the content of the compound is 6 to 45% by mass. In still another embodiment, the content of the compound is 8 to 45% by mass, and in still another embodiment, the content of the compound is 9 to 45% by mass, and in still another embodiment, the compound The content is 11 to 45% by mass, and in still another embodiment, the content of the compound is 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. In one embodiment, the content of the compound is 2 to 30% by mass, and in still another embodiment, the content of the compound is 2 to 25% by mass. In still another embodiment, the content of the compound is 2 to 20% by mass, in still another embodiment, the content of the compound is 2 to 13% by mass, and in still another embodiment, the content of the compound is 2 to 9% by mass, and yet another In one 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.

In order to maintain the viscosity of the liquid crystal composition of the present invention, it is required In the case of a liquid crystal composition having a high reaction rate, it is preferred that the lower limit value is slightly lower and the upper limit value is slightly lower. Furthermore, it is not easy to be branded. In the case of the liquid crystal composition, it is preferred that the lower limit value is slightly lower and the upper limit value is slightly lower. Further, in order to increase the dielectric anisotropy in order to maintain a low driving voltage, it is preferable that the lower limit is slightly higher and the upper limit is slightly higher.

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

(wherein, X ¹⁰¹ to X ¹⁰³ each independently represent 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are appropriately combined in the embodiment. For example, in one embodiment of the present invention, it is one type. Further, in another embodiment of the present invention, there are two types. In still another embodiment, there are three types. In still another embodiment, there are four types. In still another embodiment, it is five or more types.

The content of the compound represented by the formula (X-1) is considered to be low temperature. The characteristics of solubility, transition temperature, electron reliability, and birefringence are as follows, and there are upper limit values and lower limit values in each embodiment. 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 of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 3 to 40% by mass. %, in another implementation In the other aspect, 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 another embodiment, the content of the compound is 7~ 40% by mass, in still 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.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 2 to 40% by mass, and in another embodiment, the content of the compound is 2 to 30% by mass, and in still another embodiment, the content of the compound is 2 to 25 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, and still another embodiment The content of the compound is 2 to 10% by mass, and in still another embodiment, the content of the compound is 2 to 6% by mass. In still another embodiment, the content of the compound is 2 to 4 quality%.

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are appropriately combined in the embodiment. For example, in one embodiment of the present invention, it is one type. Further, in another embodiment of the present invention, there are two types. In still another embodiment, there are three types. In still another embodiment, it is four or more types.

The content of the compound represented by the formula (X-1-1) is considered to be low The properties such as solubility, temperature, electron reliability, and birefringence at room temperature have upper and lower limits for 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 another embodiment, the content of the compound is from 4 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 9 to 30% by mass, and in still another embodiment, The content of the compound is 12 to 30% by mass, and in still another embodiment, the content of the compound is 15 to 30% by mass, and in still another embodiment, the content of the compound is 18 to 30% by mass. . In still another embodiment, the content of the compound is from 21 to 30% by mass.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 3 to 30% by mass, and in 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 13%. % by mass, In still another embodiment, the content of the compound is from 3 to 10% by mass, and in still another embodiment, the content of the compound is from 3 to 7% by mass.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (X-1-1) is specifically preferably a compound represented by the formula (36.1) to the formula (36.4), and preferably contains the formula (36.1) and/or the formula (36.2). Compound.

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

(In the formula, 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 considered to be low The solubility in the temperature, the transition temperature, the electronic reliability, and the like are preferably 1% by mass or more and 20% by mass or less, and more preferably 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. It is particularly preferably 6 mass% or more and 12 mass% or less, and particularly preferably 6 mass% or more and 10 mass% or less.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (X-1-2) is specifically preferably a compound represented by the formula (37.1) to the formula (37.4), and preferably a compound represented by the formula (37.2).

In the liquid crystal composition of the present invention, the formula represented by the formula (37.2) The content of the compound is preferably 1% by mass or more and 20% by mass or less, more preferably 2% by mass based on the total mass of the liquid crystal composition of the present invention, in consideration of solubility at a low temperature, a transition temperature, and electron reliability. %% or more and 15% by mass or less, particularly preferably 3% by mass or more and 10% by mass or less, particularly preferably 3% by mass or more and 7% by mass or less.

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types.

The content of the compound represented by the formula (X-1-3) is relative to the present The total mass of the liquid crystal composition of the invention is preferably 1% by mass or more, more preferably 2% by mass or more, and still more preferably 6% by mass or more. Further, in consideration of solubility at low temperature, transition temperature, electronic reliability, and the like, the maximum ratio is preferably limited to 20% by mass or less, more preferably 16% by mass or less, still more preferably 12% by mass or less, and particularly preferably 10% by mass. the following.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (X-1-3) is specifically preferably a compound represented by the formula (38.1) to the formula (38.4), and preferably a compound represented by the formula (38.2).

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

(wherein, X ¹⁰² to X ¹⁰³ each independently represent 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types.

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types, and more preferably one to three or more types.

The content of the compound represented by the formula (X-2-1) is considered to be low The solubility in the temperature, the transition temperature, the electronic reliability, and the like are preferably 3% by mass or more and 20% by mass or less, and more preferably 6% by mass or more and 16% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is particularly preferably 9% by mass or more and 12% by mass or less, and particularly preferably 9% by mass or more and 10% by mass or less.

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

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

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types.

The content of the compound represented by the formula (X-2-2) is considered to be solubility at a low temperature, a transition temperature, an electron reliability, and the like, and is preferably 3% by mass based on the total mass of the liquid crystal composition of the present invention. The amount is 20% by mass or less, more preferably 6% by mass or more and 16% by mass or less, and particularly preferably 9% by mass or more and 12% by mass or less, and particularly preferably 9% by mass or more and 10% by mass or less.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by the formula (42-1) is specifically preferably a compound represented by the formula (40.1) to the formula (40.4), and preferably a compound represented by the formula (40.2).

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types, and more preferably one to three or more types.

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types, and more preferably one to three or more types.

The content of the compound represented by the formula (X-4-1), considering the low temperature The solubility, the transition temperature, the electron reliability, and the like of the liquid crystal composition of the present invention are preferably 2% by mass or more and 20% by mass or less, more preferably 5% by mass or more and 17% by mass or less, more preferably 5% by mass or more and 17% by mass or less. It is preferably 10% by mass or more and 15% by mass or less, and particularly preferably 10% by mass or more and 13% by mass or less.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (X-4-1) is specifically preferably a compound represented by the formula (42.1) to the formula (42.4), and preferably a compound represented by the formula (42.2).

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types, and more preferably one to three or more types.

The content of the compound represented by the formula (X-4-2), considering the low temperature The solubility, the transition temperature, the electron reliability, and the like of the liquid crystal composition of the present invention are preferably 2% by mass or more and 20% by mass or less, more preferably 5% by mass or more and 17% by mass or less, more preferably 5% by mass or more and 17% by mass or less. It is preferably 10% by mass or more and 15% by mass or less, and particularly preferably 10% by mass or more and 13% by mass or less.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (X-4-2) is specifically preferably a compound represented by the formula (42.11) to the formula (42.14), and more preferably contains the formula (42.13) or a formula. The compound shown in (42.14).

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types, and more preferably one to three or more types.

The content of the compound represented by the formula (X-4-3), considering the low temperature The solubility, the transition temperature, the electron reliability, and the like are preferably 2% by mass or more and 20% by mass based on the total mass of the liquid crystal composition of the present invention. More preferably, it is 5% by mass or more and 17% by mass or less, more preferably 10% by mass or more and 15% by mass or less, and particularly preferably 10% by mass or more and 13% by mass or less.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (X-4-3) is specifically preferably a compound represented by the formula (42.21) to the formula (42.24), and more preferably a compound represented by the formula (42.22).

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types, and more preferably one to three or more types.

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types, and more preferably one to three or more types.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (X-5-1) is specifically preferably a compound represented by the formula (43.1) to the formula (43.4), and preferably a compound represented by the formula (43.2).

Moreover, in the liquid crystal compound of the present invention, it may also contain A compound represented by the formula (X-7) which is a compound similar to the compound represented by the formula (X).

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types.

The content of the compound represented by the formula (X-7) is considered to be low temperature. The characteristics of solubility, transition temperature, electron reliability, and birefringence are as follows, and there are upper limit values and lower limit values in each embodiment.

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

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 4 to 30% by mass, and in another embodiment, the content of the compound is 4 to 20% by mass, and in still another embodiment, the content of the compound is 4 to 13%. 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, and still another embodiment Medium is 3 mass%.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (X-7) is specifically preferably a compound represented by the formula (44.11) to the formula (44.14), and more preferably a compound represented by the formula (44.13).

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

(wherein, X ¹¹¹ to X ¹¹⁷ each independently represent a fluorine atom or a hydrogen atom, at least one of X ¹¹¹ to X ¹¹⁷ represents a fluorine atom, and R ¹¹ 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 ).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to three or more types.

The content of the compound represented by the formula (XI) is considered to be low temperature. The characteristics of solubility, transition temperature, electron reliability, and birefringence are as follows, and there are upper limit values and lower limit values in each embodiment. 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 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 yet another embodiment, The content of the compound is from 9 to 30% by mass, and in still another embodiment, the content of the compound is from 10 to 30% by mass. In still another embodiment, the content of the compound is from 12 to 30% by mass. 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 15 to 30% by mass. In still another embodiment, the content of the compound is from 18 to 30% by mass.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 2 to 30% by mass, and 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%. 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, and still another embodiment The content of the aforementioned compound is 2 to 5% by mass.

When the liquid crystal composition of the present invention is used, the gap between the liquid crystal layers is small When the liquid crystal display element is used, the content of the compound represented by the general formula (XI) is preferably slightly. When it is used for a liquid crystal display element having a small driving voltage, the content of the compound represented by the general formula (XI) is preferably slightly. Further, when it is used for a liquid crystal display element used in a low-temperature environment, the content of the compound represented by the formula (XI) is preferably slightly less. When it is used for a liquid crystal composition of a liquid crystal display element having a high reaction rate, the content of the compound represented by the general formula (XI) is preferably slightly less.

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

(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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are appropriately combined in the embodiment. For example, in one embodiment of the present invention, one type is used, and in another embodiment, two types are used, and in still another embodiment, three types or more are combined.

The content of the compound represented by the formula (XI-1) is considered to be low The solubility in the temperature, the transition temperature, the electronic reliability, and the like are preferably 1% by mass or more and 20% by mass or less, and more preferably 3% by mass or more and 20% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is particularly preferably 4% by mass or more and 20% by mass or less, more preferably 6% by mass or more and 15% by mass or less, and particularly preferably 9% by mass or more and 12% by mass or less.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (XI-1) is specifically preferably a compound represented by the formula (45.1) to the formula (45.4), and preferably a compound represented by the formula (45.2) to the formula (45.4), more preferably It is a compound represented by the formula (45.2).

In the liquid crystal composition of the present invention, the formula represented by the formula (45.2) The content of the compound is preferably 1% by mass or more and 25% by mass or less, more preferably 2% by mass based on the total mass of the liquid crystal composition of the present invention, in consideration of solubility at a low temperature, a transition temperature, and electron reliability. % or more is 20% by mass or less, and particularly preferably 2% by mass or more and 15% by mass or less, and particularly preferably 2% by mass or more and 10% by mass or less.

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

(In the formula, 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are appropriately combined in the embodiment. For example, in one embodiment of the present invention, one type is used, and in another embodiment, two types are used, and in still another embodiment, three types or more are combined.

The content of the compound represented by the formula (XI-2), considering the low temperature Lower solubility, transition temperature, electronic reliability, etc., relative to the present invention The total mass of the liquid crystal composition is preferably 1% by mass or more and 20% by mass or less, more preferably 3% by mass or more and 20% by mass or less, still more preferably 4% by mass or more and 20% by mass or less, and particularly preferably 6% by mass or less. The above 15% by mass or less is particularly preferably 9% by mass or more and 12% by mass or less.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (XI-2) is specifically preferably a compound represented by the formula (45.11) to the formula (45.14), and preferably a compound represented by the formula (45.12) to the formula (45.14), more preferably It is a compound represented by the formula (45.12).

The compound represented by the formula (X) is preferably a compound of the formula (XII) Compounds selected from the indicated groups.

(wherein, X ¹²¹ to X ¹²⁶ each independently represent 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 alkyl group having 1 to 4 carbon atoms; Oxy group, Y ¹² represents a fluorine atom or -OCF ₃ ).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to three or more types, and more preferably one to four or more types.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (XII) 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).

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types, and more preferably one to three or more types.

The content of the compound represented by the formula (XII-1) is considered to be low. The solubility in the temperature, the transition temperature, the electron reliability, and the like are preferably 1% by mass or more and 15% by mass or less, and more preferably 2% by mass or more and 10% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is particularly 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.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (XII-1) is specifically preferably a compound represented by the formula (46.1) to the formula (46.4), and preferably a compound represented by the formula (46.2) to the formula (46.4).

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

There are no special restrictions on the compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to two or more types, more preferably one to three or more. combination.

The content of the compound represented by the formula (XII-2) is considered to be low The solubility in the temperature, the transition temperature, the electronic reliability, and the like are preferably 1% by mass or more and 20% by mass or less, and more preferably 3% 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 particular, it is preferably 4% by mass or more and 17% by mass or less, more preferably 6% by mass or more and 15% by mass or less, and particularly preferably 9% by mass or more and 13% by mass or less.

Furthermore, the general formula used in the liquid crystal composition of the present invention The compound represented by (XII-2) is specifically preferably a compound represented by the formula (47.1) to the formula (47.4), and preferably a compound represented by the formula (47.2) to the formula (47.4).

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

(wherein, X ¹³¹ to X ¹³⁵ each independently represent a fluorine atom or a hydrogen atom, and R ¹³ 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 ; except for the compound represented by the formula (i)).

The types of compounds that can be combined are not particularly limited. However, among these compounds, it is preferable to contain one type to two types, more preferably one type to three types, and particularly preferably one to four types.

The content of the compound represented by the formula (XIII) is considered to be low temperature. The characteristics of solubility, transition temperature, electron reliability, and birefringence are as follows, and there are upper limit values and lower limit values in each embodiment.

For example, in one embodiment of the invention, In the total mass of the liquid crystal composition of the present invention, the content of the compound is 2 to 30% by mass, and in another embodiment, the content of the compound is 4 to 30% by mass. In still another embodiment, the compound is The content 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 another embodiment, the content of the compound is 9 to 30% by mass. In still another embodiment, the content of the compound is 11 to 30% by mass, and in still another embodiment, the content of the compound is 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. More yet another In the embodiment, the content of the compound is from 20 to 30% by mass.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 2 to 30% by mass, and 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%. 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, and still another embodiment The content of the aforementioned compound is 2 to 5% by mass.

When the liquid crystal composition of the present invention is used, the gap between the liquid crystal layers is small When the liquid crystal display element is used, the content of the compound represented by the formula (XIII) is preferably slightly more. When it is used for a liquid crystal display element having a small driving voltage, the content of the compound represented by the formula (XIII) is preferably slightly more. Further, when it is used for a liquid crystal display element used in a low-temperature environment, the content of the compound represented by the formula (XIII) is preferably slightly less. When it is used for a liquid crystal composition of a liquid crystal display element having a high reaction rate, the content of the compound represented by the formula (XIII) is preferably slightly less.

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

(wherein R ¹⁴ 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 each independently represent 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).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are appropriately combined in the embodiment. For example, in one embodiment of the present invention, it is one type. Furthermore, 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 still another embodiment of the present invention, there are four types. Alternatively, in still 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) is considered to be low temperature. The characteristics of solubility, transition temperature, electron reliability, and birefringence are as follows, and there are upper limit values and lower limit values in each embodiment.

For example, in one embodiment of the invention, In the total mass of the liquid crystal composition of the present invention, the content of the compound is from 3 to 40% by mass, and in another embodiment, the content of the compound is from 7 to 40% by mass. In still another embodiment, the compound is The content 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 another embodiment, the content of the compound is 12 to 40% by mass. In still another embodiment, the content of the compound is 16 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 22 to 40% by mass. In still another embodiment, the content of the compound is from 25 to 40% by mass.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 3 to 40% by mass, and in another embodiment, the content of the compound is 3 to 35% by mass, and in still another embodiment, the content of the compound is 3 to 30% by weight. In still another 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 still another embodiment The content of the aforementioned compound is from 3 to 15% by mass.

When the liquid crystal composition of the present invention is used, the driving voltage is small When the liquid crystal display element is used, the content of the compound represented by the formula (XIV) is preferably slightly more. Further, in the case of a liquid crystal composition used for a liquid crystal display element having a high reaction rate, the content of the compound represented by the formula (XIV) is preferably slightly less.

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

(wherein R ¹⁴ 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 ).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are preferably one to three kinds of combinations.

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

(In the formula, R ¹⁴ 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).

General formula with respect to the total mass of the liquid crystal composition of the present invention The content of the compound represented by (XIV-1) is preferably 2% by mass or more, more preferably 4% by mass or more, particularly preferably 7% by mass or more, particularly preferably 10% by mass or more, and particularly preferably 18% by mass or more. . Further, considering the solubility at low temperature, the transition temperature, the electron reliability, and the like, the maximum ratio is preferably limited to 30% by mass or less, more preferably 27% by mass or less, still more preferably 24% by mass or less, and particularly preferably less than 21%. quality%.

Furthermore, the compound represented by the formula (XIV-1-1) is specifically The compound represented by the formula (51.1) to the formula (51.4) is more preferably a compound represented by the formula (51.1).

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

(In the formula, R ¹⁴ 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 considered to be solubility at a low temperature, a transition temperature, an electron reliability, etc., and is preferably 1% by mass based on the total mass of the liquid crystal composition of the present invention. The amount is 15% by mass or less, more preferably 3% by mass or more and 13% by mass or less, and particularly preferably 5% by mass or more and 11% by mass or less, particularly preferably 7% by mass or more and 9% by mass or less.

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

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

(wherein R ¹⁴ 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 each independently represent a fluorine atom or A hydrogen atom, Y ¹⁴ represents a fluorine atom, a chlorine atom or -OCF ₃ ; except for the compound represented by the formula (i)).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are appropriately combined in the embodiment. For example, in one embodiment of the present invention, it is one type. Furthermore, 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 still another embodiment of the present invention, there are four types. Alternatively, in still another embodiment of the present invention, it is five or more types.

The content of the compound represented by the formula (XIV-2) is considered to be low The properties such as solubility, temperature, electron reliability, and birefringence at room temperature have upper and lower limits for each embodiment.

For example, in one embodiment of the invention, In the total mass of the liquid crystal composition of the present invention, the content of the compound is from 3 to 40% by mass, and in another embodiment, the content of the compound is from 7 to 40% by mass. In still another embodiment, the compound is The content is 8 to 40% by mass, and in still another embodiment, the content of the compound is 10 to 40% by mass, and in still another embodiment, the above compound In another embodiment, the content of the compound is from 12 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 21 to 40% by mass. In still another embodiment, the content of the compound is from 22 to 40% by mass.

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is from 3 to 40% by mass, and in another embodiment, the content of the compound is from 3 to 35% by mass, and in still another embodiment, the content of the compound is from 3 to 25 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, and still another embodiment The content of the above compound is from 3 to 10% by mass.

When the liquid crystal composition of the present invention is used, the driving voltage is small When the liquid crystal display device is used, the content of the compound represented by the formula (XIV-2) is preferably slightly more. Further, in the case of a liquid crystal composition used for a liquid crystal display element having a high reaction rate, the content of the compound represented by the formula (XIV-2) is preferably slightly less.

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

(In the formula, R ¹⁴ 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 considered The solubility at a low temperature, the transition temperature, the electron reliability, and the like are preferably 1% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 13% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is particularly preferably 5 mass% or more and 11 mass% or less, and particularly preferably 7 mass% or more and 9 mass% or less.

Furthermore, the compound represented by the formula (XIV-2-1) is specifically The compound represented by the formula (53.1) to the formula (53.4) preferably contains a compound represented by the formula (53.4).

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

(In the formula, R ¹⁴ 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 considered The solubility at a low temperature, the transition temperature, the electron reliability, and the like are preferably 3% by mass or more and 20% by mass based on the total mass of the liquid crystal composition of the present invention. % or less is more preferably 6% by mass or more and 17% by mass or less, and particularly preferably 9% by mass or more and 15% by mass or less, particularly preferably 12% by mass or more and 14% by mass or less.

The compound represented by the formula (XIV-2-2) is specifically preferably The compound represented by the formula (54.1) to the formula (54.4) preferably contains a compound represented by the formula (54.2) and/or the formula (54.4).

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

(In the formula, R ¹⁴ 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 considered Solubility at low temperature, transition temperature, electronic reliability, etc., relative to this The total mass of the liquid crystal composition of the invention is preferably 5% by mass or more and 30% by mass or less, more preferably 9% by mass or more and 27% by mass or less, particularly preferably 12% by mass or more and 24% by mass or less, particularly preferably 12% by mass or less. % or more and 20% by mass or less.

Furthermore, the compound represented by the formula (XIV-2-3) is specifically The compound represented by the formula (55.1) to the formula (55.4) preferably contains a compound represented by the formula (55.2) and/or the formula (55.4).

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

(In the formula, R ¹⁴ 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).

There are no restrictions on the types of compounds that can be combined, but consider The solubility at low temperature, the transition temperature, the electron reliability, the birefringence, and the like are appropriately combined in the embodiment. For example, in one embodiment of the present invention, it is one type. Furthermore, 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) is considered The properties such as solubility at low temperature, transition temperature, electronic reliability, and birefringence have upper and lower limits in each embodiment.

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

Also, for example, one of the present invention with respect to the aforementioned total mass In one embodiment, the content of the compound is 2 to 35% by mass, and in another embodiment, the content of the compound is 2 to 30% by mass, and in still another embodiment, the content of the compound is 2 to 25 % by mass, 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 compound The content is 2 to 10% by mass.

When the liquid crystal composition of the present invention is used, the driving voltage is small When the liquid crystal display device is used, the content of the compound represented by the formula (XIV-2-4) is preferably slightly more. Further, in the case of a liquid crystal composition used for a liquid crystal display element having a high reaction rate, the content of the compound represented by the formula (XIV-2-4) is preferably slightly less.

Furthermore, the compounds represented by the formula (XIV-2-4) are specifically The compound represented by the formula (56.1) to the formula (56.4) preferably contains a compound represented by the formula (56.1), the formula (56.2) or the formula (56.4).

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

(In the formula, 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 considered The solubility at a low temperature, the transition temperature, the electron reliability, and the like are preferably 5% by mass or more and 25% by mass or less, and more preferably 10% by mass or more and 22% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is particularly preferably 13% by mass or more and 18% by mass or less, and particularly preferably 13% by mass or more and 15% by mass or less.

Furthermore, the compound represented by the formula (XIV-2-5) is specifically A compound of the formula (57.1) to the formula (57.4). Among them, it is preferred to contain a compound represented by the formula (57.1).

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

(In the formula, 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 considered The solubility at a low temperature, the transition temperature, the electron reliability, and the like are preferably 5% by mass or more and 25% by mass or less, and more preferably 10% by mass or more and 22% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is particularly preferably 15% by mass or more and 20% by mass or less, and particularly preferably 15% by mass or more and 17% by mass or less.

Further, the compound represented by the formula (XIV-2-6) is particularly preferably a compound The compound represented by the formula (58.1) to the formula (58.4) preferably contains a compound represented by the formula (58.2).

The compound used in the invention of the present invention does not have a molecule Peracid (-CO-OO-) structure. Moreover, when importance is attached to the reliability and long-term stability of the liquid crystal composition, it is preferred not to use a compound having a carbonyl group. Further, when importance is attached to the stability of UV irradiation, it is preferred not to use a compound substituted with a chlorine atom. It is also preferred that only the intramolecular ring structure is a 6-membered ring compound.

In the liquid crystal display device of the present invention, a polymerizable compound may be contained in order to produce a liquid crystal display element such as a PS mode, a lateral electric field type PSA mode or a lateral electric field type PSVA mode. The polymerizable compound which can be used is a photopolymerizable monomer which is polymerized by an energy ray such as light, and the structure is, for example, a six-membered ring having a biphenyl derivative or a biphenyl derivative. A polymerizable compound or the like of a liquid crystal skeleton which is connected in plural. More specifically, a difunctional monomer represented by the formula (XX) is preferred,

(wherein, X ²⁰¹ and X ²⁰² each independently represent a hydrogen atom or a methyl group, and Sp ²⁰¹ and Sp ²⁰² each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms or -O-(CH ₂ ) _s - (wherein s represents an integer from 2 to 7, the oxygen atom is bonded to the 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 a bond, M ²⁰¹ represents a 1,4-phenylene group, a trans-1,4-cyclohexylene group or a single bond, and all of the 1,4-phenylene groups in the formula may be substituted by a fluorine atom. .

Preferably, both of X ²⁰¹ and X ²⁰² represent a diacrylate derivative of a hydrogen atom, and a dimethacrylate derivative each having a methyl group, and preferably one of them represents a hydrogen atom, and the other One represents a compound of a methyl group. The polymerization rate of these compounds is the fastest in the diacrylate derivative, the dimethacrylate derivative is slow, and the asymmetric compound is in the middle thereof, and the preferred aspect can be used according to the use thereof. Among the PSA display elements, dimethacrylate derivatives are particularly preferred.

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

Z ^{201 is} preferably -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -CF ₂ O-, -OCF ₂ -, -CH ₂ CH ₂ -, -CF ₂ CF ₂ - or The key is more preferably -COO-, -OCO- or a single bond, and particularly preferably a single bond.

M ²⁰¹ represents a 1,4-phenylene group, a trans-1,4-cyclohexylene group or a single bond in which an arbitrary hydrogen atom may be substituted by a fluorine atom, and is preferably a 1,4-phenylene group or a single bond. When M ²⁰¹ represents a ring structure other than a single bond, Z ^{201 is} preferably a linking group other than a single bond, and when M ²⁰¹ is a single bond, Z ^{201 is} preferably a single bond.

From the viewpoint of the above, in the general formula (XX), the ring structure between Sp ²⁰¹ and Sp ²⁰² is specifically preferably the structure described below.

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

(wherein both ends are bonded to Sp ²⁰¹ or Sp ²⁰² ).

Polymeric compound containing these skeletons, after polymerization The alignment adjustment force is most suitable for the PSA type liquid crystal display element, and a good alignment state is obtained, so that the plaque is suppressed or does not occur at all.

According to the above, as a polymerizable monomer, it is particularly preferred (XX-1)~ General formula (XX-4), wherein the most preferred formula (XX-2).

(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, Even if the polymerization initiator is not present, the polymerization proceeds, but in order to promote the polymerization, a polymerization initiator may be contained. Examples of the polymerization initiator include benzoin ethers, diphenylketones, acetophenones, benzyl ketals, and mercaptophosphine oxides.

The liquid crystal composition of the present invention may further contain the formula (Q) compound of.

(wherein R ^Q represents a linear alkyl group or a branched alkyl group having 1 to 22 carbon atoms, and one or two or more CH ₂ groups in the alkyl group are not directly adjacent to each other in the oxygen atom; 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 two or more CH ₂ groups in the alkyl group may be -O- in such a manner that the oxygen atoms are not directly adjacent to each other. , -CH=CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF ₂ O-, -OCF ₂ -, but preferably a linear chain having 1 to 10 carbon atoms An alkyl group, a linear alkoxy group, a linear CH ₂ group substituted with -OCO- or -COO-, a branched alkyl group, a branched alkoxy group, and a CH ₂ group are substituted into - a branched alkyl group of OCO- or -COO-, more preferably a linear alkyl group having 1 to 20 carbon atoms, a linear alkyl group in which one CH ₂ group is substituted with -OCO- or -COO-, a branched chain The alkyl group, the branched alkoxy group, and one CH ₂ group are 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, preferably a trans-1,4-cyclohexylene group or a 1,4-phenylene group.

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

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, and R ^Q3 is more preferred. Preferred 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 L ^{Q is} preferably a linear alkyl group or a branch having 1 to 8 carbon atoms. Chain alkyl. Among the compounds represented by the formula (Qa) to the formula (Qd), a compound represented by the formula (Qc) and the formula (Qd) is more preferred.

In the liquid crystal composition of the invention of the present invention, it is preferred to contain 1 The compound represented by the formula (Q) or more preferably contains one to five kinds, and the content thereof is preferably 0.001 to 1% by mass, more preferably 0.001 to 0.1% by mass, particularly preferably 0.001 to 0.05% by mass.

<Liquid crystal display element>

The liquid crystal composition containing a polymerizable compound of the present invention can be imparted by polymerizing a polymerizable compound contained therein by ultraviolet irradiation. The liquid crystal alignment ability is used for a liquid crystal display element which controls the amount of light transmitted by the birefringence of the liquid crystal composition. For liquid crystal display elements, suitable for AM-LCD (active matrix liquid crystal display elements), TN (nematic liquid crystal display elements), STN-LCD (super twisted nematic liquid crystal display elements), OCB-LCD and IPS-LCD (horizontal The electric field switching liquid crystal display element) is particularly suitable for an AM-LCD, and can be used for a transmissive or reflective type liquid crystal display element.

Two substrates of liquid crystal cells used in liquid crystal display elements A flexible material such as glass or plastic can be used, and one of the sheets can also be made of 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, for example, a pigment dispersion method or a printing method. , electrodeposition or dyeing methods are used. An example of a method for producing a color filter by a pigment dispersion method is to apply a curable coloring composition for a color filter to a transparent substrate, apply a patterning treatment, and then heat or lightly irradiate. Harden. By performing this step for each of the three colors of red, green, and blue, a pixel portion for a color filter can be formed. Further, a pixel electrode provided with an active element such as a TFT, a thin film diode, or a metal insulator metal specific resistance element may be provided on the substrate.

The substrate phase is formed such that the transparent electrode layer is inside to. In this case, the interval between the substrates can also be adjusted via the spacer. In this case, it is preferred to adjust so that the thickness of the obtained light control layer is 1 to 100 μm. 1.5 to 10 μm is more preferable. When a polarizing plate is used, it is preferable to adjust the refractive index anisotropy of the liquid crystal by the contrast to be the largest. The product of the cell thickness d. Moreover, when there are two polarizing plates, the polarizing axes of the respective polarizing plates can be adjusted, and the viewing angle or the contrast can be adjusted in a good manner. Further, in order to expand the viewing angle, a retardation film can also be used. Examples of the spacer include a columnar spacer formed of glass particles, plastic particles, alumina particles, a photoresist material, or the like. Then, a sealant such as an epoxy thermosetting composition is screen-printed on the substrate in the form of a liquid crystal injection port, and the substrates are bonded to each other and heated to thermally cure the sealant.

A liquid crystal group containing a polymerizable compound between two substrates As a method of forming a product, a usual vacuum injection method, ODF method, or the like can be used. However, in the vacuum injection method, although the dropping trace does not occur, the problem of residual trace of the injection is more suitable for the display element manufactured by the ODF method in the invention of the present invention. In the liquid crystal display element manufacturing step of the ODF method, an epoxy-based photothermal heat is used as a closed-loop embankment in a sealing agent such as hardenability by using a dispenser on any of the back sheet or the front sheet. After dropping a specified amount of the liquid crystal composition under degassing, the front plate and the back plate are bonded to each other to manufacture a liquid crystal display element. The liquid crystal composition of the present invention can be suitably used because the dropping of the liquid crystal composition is carried out in the ODF step.

As a method of polymerizing a polymerizable compound, It is preferred to obtain a good alignment property of the liquid crystal, which is preferably a moderate polymerization rate. Therefore, it is preferred to carry out polymerization by irradiating an active energy ray such as ultraviolet rays or electron beams in a single or in combination or in rotation. When using ultraviolet light, a polarized light source or a non-polarized light source can be used. Further, when polymerization is carried out while sandwiching a liquid crystal composition containing a polymerizable compound between two substrates, at least The substrate on the side of the irradiation surface must give appropriate transparency to the active energy ray. Further, it is also possible to use a mask to modulate only a specific portion after light irradiation, and to change the alignment state of the unpolymerized portion by changing conditions such as an electric field, a magnetic field, or a temperature, and then irradiate the active energy ray so that the active energy ray is irradiated. The means of aggregation. 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, more preferably a frequency of 60 Hz to 10 kHz, and the voltage is selected depending on the desired pretilt angle of the liquid crystal display element. That is, the pretilt angle of the liquid crystal display element can be controlled by the applied voltage. In the liquid crystal display device of the transverse electric field type MVA mode, it is preferable to control the pretilt angle from 80 to 89.9 degrees from the viewpoint of alignment stability and contrast.

The temperature at the time of irradiation is preferably within a temperature range in which the liquid crystal state of the liquid crystal composition of the present invention is maintained. Preferably, the polymerization is carried out at a temperature close to room temperature, i.e., typically at a temperature of from 15 to 35 °C. As the lamp for generating ultraviolet rays, a metal halide lamp, a high pressure mercury lamp, an ultrahigh pressure mercury lamp, or the like can be used. Further, as the wavelength of the ultraviolet ray to be irradiated, it is preferred to irradiate the ultraviolet ray which is not in the wavelength range of the absorption wavelength range of the liquid crystal composition, and it is preferable to use the ultraviolet ray to cut off the ultraviolet ray as needed. The intensity of the ultraviolet ray to be irradiated is preferably from 0.1 mW/cm ² to 100 W/cm ² , more preferably from 2 mW/cm ² to 50 W/cm ² . The energy of the ultraviolet ray to be irradiated can be suitably adjusted, and is preferably from 10 mJ/cm ² to 500 J/cm ² , more preferably from 100 mJ/cm ² to 200 J/cm ² . When the ultraviolet ray is irradiated, the intensity can also be changed. The time for irradiating the ultraviolet rays is appropriately selected depending on the intensity of the ultraviolet rays to be irradiated, and is preferably from 10 seconds to 3600 seconds, more preferably from 10 seconds to 600 seconds.

A liquid crystal display element using the liquid crystal composition of the present invention, It can be used to coexist fast reaction and display failure. It is especially used for active matrix drive liquid crystal display elements. It can be applied to VA mode, PSVA mode, PSA mode, IPS (transverse electric field switching) mode, VA-IPS mode, FFS. (wide viewing angle technology) mode or liquid crystal display element for ECB mode.

Hereinafter, the present invention will be described in detail with reference to the drawings. A suitable embodiment of a liquid crystal display.

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

Specifically, a specific aspect of the liquid crystal display device is provided, and the TFT substrate 102 and the pixel electrode 103 are provided on the first substrate 100, and a back sheet of the passivation film 104 and the first alignment film 105 is provided thereon; On the second substrate 200, a black matrix 202, a color filter 203, a flattening film (cover layer) 201, and a transparent electrode 204 are provided, and a second alignment film 205 is provided from above to face the front plate. a sealing material 301 disposed between the substrates; and a liquid crystal layer 303 enclosed in the area of the enclosed area surrounded by the sealing material; wherein the substrate surface of the sealing material 301 is in contact with a protrusion (columnar spacer) 302, 304.

The first substrate or the second substrate is substantially transparent In the case of the material, there is no particular limitation on the material, and glass, ceramics, plastic, etc. can be used. As the plastic substrate, cellulose derivatives such as cellulose, triacetyl cellulose, and diethyl phthalocyanine; polycycloolefin derivatives, polyethylene terephthalate, polyethylene naphthalate, and the like can be used. Polyester Polyolefins such as olefins, polyethylenes, etc.; polycarbonates, polyvinyl alcohols, polyvinyl chlorides, polyvinylidene chloride, polyamides, polyimine, polyamidamine, polystyrene, polyacrylates Polymethyl methacrylate, polyether oxime, polyarylate, and inorganic-organic composite materials such as glass fiber-epoxy resin, glass fiber-acrylic resin, and the like.

Furthermore, when a plastic substrate is used, it is preferable to provide a barrier film. . The function of the barrier film is to reduce the moisture permeability of the plastic substrate and improve the reliability of the electronic 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, an inorganic material such as cerium oxide is used, and vapor deposition or sputtering or chemical vapor deposition (CVD) is used. The film formed.

In the present invention, the first substrate or the second base The board can use the same material or different materials, 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 producing a roll-to-roll method, and is preferably lighter or more flexible. In addition, in order to provide flatness and heat resistance, good results can be obtained by combining a plastic substrate and a glass substrate.

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

In the back sheet, the TFT layer 102 and the pixel electrode 103 are provided on the first substrate 100. These can be manufactured by the usual array steps. The passivation film 104 and the 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 a TFT, and a nitride film (SiN _x ), an oxide film (SiO _x ), or the like is usually formed by a chemical vapor deposition (CVD) technique or the like.

Further, the first alignment film 105 has a function of aligning the liquid crystal The film is usually made of a polymer material such as polyimide. An alignment agent solution made of a polymer material and a solvent is used in the coating liquid. Since the alignment film has the possibility of hindering the adhesion to the sealing material, the pattern is applied in the closed region. A printing method such as an offset printing method, a droplet discharge method such as inkjet is used for coating. The coated alignment agent solution is cured by crosslinking after evaporation of the solvent by temporary drying. Then, in order to exhibit the alignment function, alignment processing is performed.

The alignment process is usually performed by a rubbing method. By as before On the polymer film formed, a rubbing cloth made of a fiber such as ruthenium is used for unidirectional rubbing to produce a liquid crystal alignment ability.

Also, there is also the use of the optical alignment method. Light distribution system A method of aligning light on an alignment film containing a photoreceptive organic material to generate alignment ability without causing damage or dust of the substrate due to the rubbing method. As an example of the organic material of the photo-alignment method, there is a material containing a dichroic dye. As the dichroic dye, an alignment induction or isomerization reaction (for example, azobenzene) or a dimerization reaction of a molecule caused by a Weigert effect due to photochromism can be used (example: Cassia ruthenium), photocrosslinking reaction (eg diphenyl ketone group) or photodecomposition reaction (eg poly(fluorene imino group)) is the basis of photoreaction of the origin of liquid crystal alignment ability (hereinafter referred to as photo-alignment) Base). The applied alignment agent solution is obtained by evaporating a solvent by temporary drying, and by irradiating light having any deviation (polarization), an alignment film having an alignment ability in an arbitrary direction can be obtained.

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

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 colorant for forming a black matrix 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 by the mask pattern, development is performed to pattern the colored layer. Then, 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. at this time The photoresist dispersion liquid of the photoresist type is applied, and after prebaking, after exposure by a mask pattern, development is performed, and the colored layer is patterned. Then, 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 or an electrodeposition method. , printing method, dyeing method, etc. are made. In the case of the pigment dispersion method, a colored resin liquid in which a pigment (for example, red) is uniformly dispersed is applied onto the second substrate 200, and after baking curing, a photoresist is applied thereon to perform prebaking. After the photoresist is exposed by the mask pattern, development is performed and patterned. The photoresist layer is then stripped and the (red) color filter 203 (203a) is completed by baking. The order of coloring is not particularly limited. Similarly, a green color filter 203 (203b) and a blue color filter 203 (203c) are formed.

The transparent electrode 204 is disposed on the color filter 203 (The overcoat layer (201) for surface flattening is provided on the color filter 203 as needed). The transparent electrode 204 preferably has a high transmittance, preferably an electric Block the small. The transparent electrode 204 is formed of an oxide film of ITO or the like by a sputtering method or the like.

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.

In the above, the above-mentioned back sheet and the front sheet used in the present invention are described in a specific aspect, but are not limited to the specific aspect in the present case, and the liquid crystal display element according to the desired aspect is freely available. change.

The shape of the columnar spacer is not particularly limited, and various shapes such as a polygonal shape such as a circular shape or a quadrangular shape may be used, but it is preferable to consider a misalignment margin during the process. To make the horizontal section a circular or regular polygon. Further, the shape of the protrusion 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 used for the sealing material or the sealing material. However, from the viewpoint of processing and weight reduction, synthetic resin is preferred. (curable resin). On the other hand, the protrusions may be provided on the sealing material contact surface on the first substrate by a photolithography method or a droplet discharge method. For this reason, it is preferred to use a photocurable resin suitable for a photolithography method or a droplet discharge method.

As an example, the case where the columnar spacer is obtained by photolithography will be described. Fig. 2 is a view showing a step of exposing a pattern using a columnar spacer formed on a black matrix as a mask pattern.

Coating the columnar spacer on the transparent electrode 204 of the front plate Resin liquid for forming (without colorant). Next, the resin layer 402 is baked and hardened. The photoresist is coated thereon and pre-baked. After the photoresist is exposed by the mask pattern 401, development is performed to pattern the resin layer. Then, the photoresist layer is peeled off, and the resin layer is baked to complete the columnar spacer (302, 0304 in Fig. 1).

The position of the column spacers can be formed by a mask pattern Position in the desired position. Therefore, both the closed region of the liquid crystal display element and the outside of the closed region (the sealing material coating portion) can be simultaneously formed. Moreover, it is preferable to form a columnar spacer so that the quality of the closed region does not decrease, and it can be positioned above the black matrix. The columnar spacers thus produced by photolithography are referred to as cylindrical spacers or photo spacers.

The material of the spacer is PVA-茋 azo (stilbazo) A mixture of a negative-type water-soluble resin such as a photosensitive resin or a polyfunctional acrylic monomer, an acrylic copolymer, a triazole-based initiator, or the like. Alternatively, there is a method of using a color resin in which a coloring agent is dispersed in a polyimide resin. In the present invention, it is not particularly limited, and a spacer can be obtained from a known material in accordance with the liquid crystal to be used or the compatibility with the sealing material.

So, on the front panel, the surface of the closed area After the columnar spacer is placed, a sealing material (301 in Fig. 1) is applied to the surface of the sealing material of the backing plate.

The material of the sealing material is not particularly limited and can be used in A curable resin composition containing a polymerization initiator in an epoxy-based or acrylic-based photocurable, thermosetting, or photocurable resin. also In order to control the moisture permeability, the modulus of elasticity, the viscosity, and the like, a filler composed of an inorganic substance or an organic substance is added. The shape of these fillers is not particularly limited and may be spherical, fibrous, amorphous or the like. Further, in order to favorably control the gap of the liquid crystal layer, a spherical or fibrous slit material having a monodisperse diameter is mixed, or 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 preferably about 1/5 to 1/10 of the gap of the liquid crystal layer, and the length of the fibrous material is preferably shorter than the seal coating width.

Moreover, as long as the material of the fibrous material is a designated shape The shape is not particularly limited, and synthetic fibers such as cellulose, polyamide, and polyester, or inorganic materials such as glass or carbon can be suitably selected.

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

a closed loop shape of the front plate coated with the aforementioned sealing material Closed area), drop the liquid crystal. A dispenser is usually used. The amount of liquid crystal dropped is the same as the volume of the liquid crystal cell, and is substantially the same as the volume by which the height of the column spacer and the sealed coating area are multiplied. However, in order to optimize liquid crystal leakage or display characteristics in the cell bonding step, the amount of liquid crystal dropped may be appropriately adjusted, and the liquid crystal dropping position may be dispersed.

Next, coating the aforementioned sealing material before the liquid crystal has been dropped On the board, fit the back panel. Specifically, the stage having the mechanism for adsorbing the substrate such as the electrostatic chuck adsorbs the front plate and the front plate, and the second alignment film of the front plate The first alignment film of the back sheet faces the first alignment film, and is disposed at a position (distance) where the sealing material does not contact the substrate on the other side. In this state, the internal pressure is reduced. After the completion of the pressure reduction, the position of the two substrates (alignment operation) was adjusted while confirming the bonding position of the front plate and the back plate. If the adjustment of the bonding position is completed, the substrate is brought close to the position where the sealing material on the front plate is in contact with the backing plate. In this state, the inert gas is filled in the system, and the pressure is returned to the normal pressure while gradually opening the pressure. At this time, the front plate and the back plate are bonded together by atmospheric pressure, and a liquid crystal layer gap is formed at a height position of the columnar spacer. In this state, the sealing material is irradiated with ultraviolet rays to cure the sealing material to form a liquid crystal cell. Then, depending on the case, a heating step is applied to promote hardening of the sealing material. In order to enhance the adhesion of the sealing material or to improve the reliability of the electronic properties, a heating step is applied.

[Examples]

The invention is illustrated in more detail below by the examples, but the invention is not limited by the examples. In addition, "%" 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 transition temperature (°C)

Δn: refractive index anisotropy at 298 K (alias: birefringence)

△ ε: dielectric anisotropy at 295K

η: viscosity at 293K (mPa‧s)

Γ1: Rotational viscosity at 295K (mPa‧s)

VHR: Voltage holding ratio at 333K at a frequency of 60 Hz and a voltage of 4 V (%)

<Evaluation of Branding>

The imprint evaluation of the liquid crystal display element is performed by displaying the predetermined fixed pattern for 6 weeks in the display area, and when the full-screen uniform display is performed, the degree of the residual image of the fixed pattern is visually recognized by the following four levels.

◎: no afterimage

○: There are very few afterimages, but they are also tolerable.

△: There is an afterimage, which is unacceptable

×: There is an afterimage, quite inferior

<Evaluation of Volatile (Contamination of Manufacturing Equipment)>

0.15 kg of liquid crystal composition was added to a special container of a vacuum stirring defoaming mixer having a capacity of 0.33 L, and the vacuum stirring defoaming mixer was operated while rotating at a revolution speed of 20 S ^{-1 and} a rotation speed of 10.0 s ^-1 while degassing to The foaming of the liquid crystal material was visually observed up to 15 kPa. The volatility is classified into the following four degrees in accordance with the time from the start of the operation of the mixer to the start of foaming.

◎: It takes 3 minutes or more until foaming. The possibility of contamination of the device due to volatilization is low.

○: It is 1 minute or more and less than 3 minutes until foaming. There are concerns about slight device contamination caused by volatilization.

△: 30 seconds or more and less than 1 minute until foaming. Device contamination due to volatilization.

×: It is within 30 seconds until foaming. There are concerns about major equipment contamination caused by volatilization.

<Evaluation of process suitability>

The process suitability is in the ODF process. Using a fixed-volume metering pump, the liquid crystal is dropped at 50 pL every 100 times, and the following four levels are used to evaluate "0 to 100 times, 101 to 200 times, and 201 to 300 times." The change in the amount of liquid crystal at the time of dripping of each of ‧ ‧ 999,000 to 100,000 times

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

○: There is a slight change, but it is also tolerable.

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

×: There is a change, which is quite inferior (liquid crystal leakage or vacuum bubble occurs)

<Evaluation of Solubility at Low Temperature>

The solubility evaluation at low temperature was carried out by modulating the liquid crystal composition, and weighing 0.5 g of the liquid crystal composition in a 1 mL sample vial. In the temperature-controlled test cell, the following "-25 ° C (for 1 hour) → Heating (0.2 ° C / min) → 0 ° C (for 1 hour) → temperature (0.2 ° C / min) → 25 ° C (for 1 hour) → cooling (-0.2 ° C / min) → 0 ° C (for 1 hour) In the next cycle, the following four levels were evaluated by visually observing the occurrence of precipitates from the liquid crystal composition.

◎: No precipitate was observed for 480 hours or longer.

○: No precipitate was observed for 240 hours or longer.

△: Precipitates were observed within 120 hours.

×: Precipitates were observed within 60 hours.

(Example 1)

The composition shown below was prepared. The physical property values of the composition of Example 1 are shown in Table 1.

(Comparative Example 1)

The composition shown below which does not contain the compound represented by the above formula (ii) was prepared. The physical property values of the composition of Comparative Example 1 are shown in Table 2.

The composition of Comparative Example 1 which did not contain the compound represented by the above formula (ii) showed a large decrease in Tni as compared with the composition of Example 1 containing the compound represented by the above formula (ii).

(Comparative Example 2)

The composition shown below which does not contain the compound represented by the above formula (ii) was prepared. The physical property values of the composition of Comparative Example 2 are shown in Table 3.

The composition of Comparative Example 2 which does not contain the compound represented by the above formula (ii) showed a significant decrease in Tni as compared with the composition of Example 1 containing the compound represented by the above formula (ii).

(Comparative Example 3)

The composition shown below is not contained in the compound represented by the above formula (i). The physical property values of the composition of Comparative Example 3 are shown in Table 4.

The composition of Comparative Example 3 which does not contain the compound represented by the above formula (i) showed an increase in viscosity as compared with the composition of Example 1 containing the compound represented by the above formula (i).

(Example 2)

The composition shown below was prepared. The physical property values of the composition of Example 2 are shown in Table 5.

(Example 3)

The composition shown below was prepared. The physical property values of the composition of Example 3 are shown in Table 6.

(Example 4)

The composition shown below was prepared. The physical property values of the composition of Example 4 are shown in Table 7.

(Comparative Example 4)

The composition shown below is not contained in the compound represented by the above formula (i). The physical property values of the composition of Comparative Example 4 are shown in Table 8.

Comparative Example 4 which does not contain the compound represented by the above formula (i) Compared with the composition of Example 1 containing the compound represented by the above formula (i), the composition showed a decrease in Tni and an increase in viscosity.

(Comparative Example 5)

The composition shown below which does not contain the compound represented by the above formula (ii) was prepared. The physical property values of the composition of Comparative Example 5 are shown in Table 9.

Comparative Example 5 which does not contain the compound represented by the above formula (ii) The composition showed a decrease in Tni as compared with the composition of Example 1 containing the compound represented by the above formula (ii).

(Example 5)

The composition shown below was prepared. The physical property values of the composition of Example 5 are shown in Table 10.

(Example 6)

The composition shown below was prepared. The physical property values of the composition of Example 6 are shown in Table 11.

(Example 7)

The composition shown below was prepared. The physical property values of the composition of Example 7 are shown in Table 12.

(Example 8)

The composition shown below was prepared. The physical property values of the composition of Example 8 are shown in Table 13.

(Example 9)

The composition shown below was prepared. Table 14 shows the physical property values of the composition of Example 9.

(Embodiment 10)

The composition shown below was prepared. The physical property values of the composition of Example 10 are shown in Table 15.

(Example 11)

The composition shown below was prepared. The physical property values of the composition of Example 11 are shown in Table 16.

(Embodiment 12)

The composition shown below was prepared. The physical property values of the composition of Example 12 are shown in Table 17.

(Example 13)

Using the liquid crystal composition described in Example 8, a VA-IPS device was produced in the same manner as described in Example 1 of WO2012/043387. It was confirmed that the fabricated components exhibited excellent display characteristics.

(Example 14)

In addition to the liquid crystal composition described in Example 8, the alignment film (SE-5300 manufactured by Nissan Chemical Industries, Ltd.) used in the element described in Example 1 of WO2012/043387 was replaced with a horizontally oriented alignment film (JSR). An IPS element was produced in the same manner as in the case of AL-1051). It is confirmed that the fabricated components exhibit excellent display characteristics.

The present invention is not limited to the scope of the invention, and the scope of the invention is not limited by the scope of the invention. Further, the present invention is not limited by the embodiments, and is only limited by the scope of the claims.

[Industrial availability]

It can provide a liquid crystal phase with a wide temperature range, low viscosity, good solubility at low temperature, high specific resistance or voltage retention, stableness to heat or light, poor display failure of branding or dripping marks, high yield Δε for manufacturing liquid crystal display elements with excellent display quality It is a positive liquid crystal composition, and a liquid crystal display element using the liquid crystal composition.

Claims (9)

A liquid crystal composition containing one or more compounds having a m ⁱ¹ of 2 as a compound represented by the following formula (i), and containing one or more kinds of the following formula (ii) The compound of the following formula (1.3) and/or (2.2) contains one or more selected from the group consisting of the following formula (VIII), the following formula (IX), and the following a compound of the compound of the formula (XI), In the formula, R ⁱ¹ and R ⁱⁱ¹ each independently represent an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent-CH ₂ - groups may independently be -CH=CH. -, -C≡C-, -O-, -CO-, -COO- or -OCO-, wherein one or more hydrogen atoms in the alkyl group are each independently a fluorine atom or a chlorine atom Substituting, m ⁱ¹ represents 0, 1 or 2, A ⁱ¹ represents a 1,4-phenylene group in which a hydrogen atom may be substituted by a fluorine atom or a chlorine atom, and when m ⁱ¹ is 2, A ⁱ¹ may be the same or different, X ⁱ¹ And a hydrogen atom, a fluorine atom or a chlorine atom, m ⁱⁱ¹ represents 0 or 1, X ⁱⁱ¹ , X ⁱⁱ² , X ⁱⁱ³ and X ⁱⁱ⁴ each independently represent a hydrogen atom, a fluorine atom or a chlorine atom, and X ⁱⁱ⁵ represents a hydrogen atom, a fluorine atom, Chlorine atom, cyano group, -CF ₃ or -OCF 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, and X ⁸¹ to X ⁸⁵ each independently represent a hydrogen atom or a fluorine atom. An atom, Y ⁸ represents a fluorine atom or -OCF ₃ ; In the formula, 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 each independently represent a hydrogen atom or fluorine. An 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-; In the formula, X ¹¹¹ to X ¹¹⁷ each independently represent a fluorine atom or a hydrogen atom, at least one of X ¹¹¹ to X ¹¹⁷ represents a fluorine atom, and R ¹¹ represents an alkyl group having 1 to 5 carbon atoms and a carbon number of 2 to 5 An alkenyl group or an alkoxy group having 1 to 4 carbon atoms, and Y ¹¹ represents a fluorine atom or -OCF ₃ . A liquid crystal composition according to claim 1 which contains two or more compounds represented by the formula (ii). The liquid crystal composition of the first aspect of the invention, wherein the compound represented by the formula (i) further contains one or more of the following formula (i-1-1) to (i-1- 4) or a compound represented by the following formula (i-2-1) to (i-2-6), In the formula, R ⁱ¹ represents the same meaning as R ⁱ¹ in the formula (i). The liquid crystal composition of the first aspect of the invention, wherein the compound represented by the formula (ii) contains one or more compounds having m ⁱⁱ¹ of 1. 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 each independently represent an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent-CH ₂ - groups may independently be -CH= CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-substituted, OL represents 0, 1, 2 or 3, and B ^L1 , B ^L2 and B ^L3 each independently represent (a) 1,4-cyclohexylene, one -CH ₂ - or two or more -CH ₂ - which are not adjacent to this group may be substituted with -O-, and (b) 1,4- a phenyl group, one of -CH= or two or more contiguous -CH= which may be substituted in the group may be substituted with -N=, a group in the group formed, the above-mentioned group (a), a group At least one hydrogen atom in (b) may be independently substituted by a cyano group, a fluorine atom or a chlorine atom, and L ^L1 and L ^L2 each independently represent a single bond, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -OCF ₂ -, -CH=NN=CH-, -CH=CH-, -CF=CF- or -C≡C - When OL is 2 or 3 and L ^L2 is plural, they may be the same or different, and when OL is 2 or 3 and B ^L3 is plural, they may be the same or different. A liquid crystal composition according to 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 -CH=CH-, -C≡ C-, -O-, -CO-, -COO- or -OCO-substituted, PM represents 0, 1, 2, 3 or 4, and C ^M1 and C ^M2 each independently represent a selected from (d) 1,4- Cyclohexyl group, one -CH ₂ - or two or more -CH ₂ - which are not adjacent to this group may be substituted with -O- or -S-, and (e) 1,4-phenylene , one of the -CH= or two or more non-contiguous -CH= may be substituted into -N=, the group in the group formed, the above-mentioned group (d), base (e) At least one hydrogen atom in each of them may be independently substituted by a cyano group, a fluorine atom or a chlorine atom, and K ^M1 and K ^M2 each independently represent a single bond, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, - OCH ₂ -, -CH ₂ O-, -OCF ₂ -, -COO-, -OCO- or -C≡C-, when PM is 2, 3 or 4 and K ^M1 is plural, they may be the same or Differently, when PM is 2, 3 or 4 and the C ^M2 system is present in plural, they may be the same or different, and X ^M1 and X ^M3 each independently represent a hydrogen atom, a chlorine atom or a fluorine atom, and X ^M2 represents a hydrogen atom. , fluorine atom, chlorine atom, cyano group, Fluoromethyl, fluoromethoxy, difluoromethoxy, trifluoromethoxy or 2,2,2-trifluoroethyl; however, the compound of the formula (i) and the formula (ii) Except for the compounds shown. A liquid crystal display element using the liquid crystal composition as in the first aspect of the patent application. A liquid crystal display element for IPS mode, OCB mode, ECB mode, VA mode, VA-IPS mode or FFS mode, which uses the liquid crystal composition as in the first aspect of the patent application. A liquid crystal display using a liquid crystal display element as in claim 7 or 8.