CN106795434A

CN106795434A - Liquid-crystal composition and use its liquid crystal display cells

Info

Publication number: CN106795434A
Application number: CN201580054713.9A
Authority: CN
Inventors: 小川真治; 栗山毅; 岩下芳典
Original assignee: Dainippon Ink and Chemicals Co Ltd
Current assignee: DIC Corp
Priority date: 2014-10-10
Filing date: 2015-10-01
Publication date: 2017-05-31
Also published as: JPWO2016056455A1; JP6132122B2; WO2016056455A1

Abstract

The present invention relates to being negative nematic liquid-crystal composition as the useful dielectric constant anisotropy of liquid crystal display material and using its liquid crystal display cells.On liquid-crystal composition of the invention, the absolute value of its dielectric constant anisotropy is big, viscosity is small, favorable solubility during low temperature, resistivity, voltage retention are high, to heat, light stabilization, can be provided using its liquid crystal display cells and not produce burn-in while high-contrast, high-speed response, show the excellent liquid crystal display cells of bad display quality.The liquid crystal display cells for having used liquid-crystal composition of the invention are the useful liquid crystal display cells for having taken into account high-speed response and the bad suppression of display, it is useful with liquid crystal display cells especially for driven with active matrix, the liquid crystal display cells of VA types, PSA type etc. can be applied to.

Description

Liquid-crystal composition and use its liquid crystal display cells

Technical field

Liquid crystal group the present invention relates to show negative value as the useful dielectric constant anisotropy (Δ ε) of liquid crystal display material Compound and use its liquid crystal display cells.

Background technology

Liquid crystal display cells since for clock, calculator, develop into for various sensing equipments, automobile panel, Word processor, electronic notebook, printer, computer, television set, clock, advertising display panel etc..As liquid crystal display mode, Its representative manner is had TN (twisted-nematic) type, STN (super twisted nematic) type, (is vertically taken using the VA of TFT (thin film transistor (TFT)) To) type, IPS (plane conversion) type etc..Used in these liquid crystal display cells liquid-crystal composition requirement to moisture, air, The extraneous factors such as heat, light stabilization, additionally, liquid crystalline phase is showed within the scope of temperature as wide as possible centered on room temperature, low viscosity, And driving voltage is low.Further, in order to for each display element by dielectric constant anisotropy (Δ ε) or each with refractive index (Δ n) etc. is set to most just when liquid-crystal composition is made up of several to tens of kinds of compounds anisotropy.

The use of Δ ε is negative liquid-crystal composition, as display in vertical orientated escope, it is desirable to which low-voltage is driven The performances such as dynamic, high-speed response, wide operating temperature range.As in order to manufacture the performance of the liquid-crystal composition required for display, It is required that the absolute value of Δ ε is big, viscosity (η) is small, nematic phase high-isotropic liquid phase transition temperature (T_ni).In addition, it is contemplated that Δ N and the product of cell gap (d) are the setting of Δ n × d, it is necessary to combining unit gap adjusts to appropriate the Δ n of liquid-crystal composition Scope.In addition, in the case where liquid crystal display cells are applied into television set etc., high-speed response is paid attention to, therefore will Seek γ₁Small liquid-crystal composition.Particularly in recent years, make cell gap thinning for high-speed response, it is therefore desirable to make to glue Degree diminishes, while making Δ n become big, thus have studied the liquid-crystal composition using the compound with multiple phenyl ring, patent document 1st, in patent document 2, have been disclosed for using the liquid-crystal composition with the compound for having carried out the terphenyl structure that fluorine replaces.

On the other hand, as the purposes of liquid crystal display cells expands, its application method, manufacture method can also see that big change Change.In order to tackle these changes, it is desirable to by the characteristic optimization beyond in the past known basic physical properties value.That is, on using liquid The liquid crystal display cells of crystal composite, widely use VA types, IPS types etc., so as on its size, ultra-large type chis more than 50 types Very little display element is also practical so as to be used.With the maximization of substrate size, injection side from liquid-crystal composition to substrate Method is also changed into instillation (ODF from conventional vacuum impregnation：One Drop Fill) method and turn into method for implanting main flow, but The problem that the drop impression that liquid-crystal composition is added dropwise when the substrate causes display quality reduction is emerged out.

Further, in the liquid crystal display cells manufacturing process using ODF methods, it is necessary to according to the chi of liquid crystal display cells It is very little that most suitable liquid crystal injection rate is added dropwise.If injection rate with most just when deviation become big, the liquid crystal display cells being pre-designed Refractive index, the balance of driving electric field can collapse, there is the displays such as the generation of spot, contrast be bad bad.It is especially multiplex Small-sized liquid crystal display cells in nearest popular smart mobile phone, because most suitable liquid crystal injection rate is few, therefore will with it is most suitable The deviation control of value is in itself within the specific limits difficult.Therefore, in order to keep the yield rate of liquid crystal display cells higher, For example also need to following performance：It is small to the abrupt pressure change in the Dropping feeder produced by the liquid crystal drop added-time, the influence of impact, Liquid crystal can persistently be added dropwise long-term and stably.

So, the liquid crystal group for being used for the driven with active matrix liquid crystal display cells being driven with TFT elements etc. Compound, it is desirable to developed as follows：High speed response property etc. is not only maintained as the characteristic required by liquid crystal display cells, property Can, it is also contemplated that the manufacture method of liquid crystal display cells, and make that just paid attention in the past to be kept with high resistivity value or high voltage Rate, such characteristic (patent document 3~5) stable to outside stimulus such as light, heat are further improved.

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2003-327965

Patent document 2：No. WO2007/077872

Patent document 3：Japanese Unexamined Patent Publication 9-124529

Patent document 4：Japanese Unexamined Patent Publication 2006-169472

Patent document 5：Japanese Patent 5170603

The content of the invention

The invention problem to be solved

The problem to be solved by the present invention is that, there is provided Δ ε is negative liquid-crystal composition, and it has the liquid crystal of wide temperature range Phase, viscosity is small, and favorable solubility during low temperature, resistivity, voltage retention are high, to heat, light stabilization, being capable of high finished product rate ground system Make and be not likely to produce the excellent liquid crystal display cells of the bad and display quality of display such as burn-in, drop impression, and by using the liquid crystal Composition, thus provide that display quality is excellent, be not likely to produce burn-in, the liquid crystal of display bad VA types, the PSVA types such as drop impression etc. Display element.

Method for solving problem

The present inventor studies various liquid-crystal compounds and various chemical substances, and discovery can by combining specific compound Above-mentioned problem is solved, so as to complete the present invention.

There is provided a kind of liquid-crystal composition, it is characterised in that contain the chemical combination represented by one or more logical formula (I)s Thing,

[changing 1]

(in formula, R¹Represent carbon number 1 to 22 straight chained alkyl or branched alkyl, in the alkyl one or two with On CH₂Base can in the way of oxygen atom is not abutted directly against by-O- ,-CH=CH- ,-CO- ,-OCO- ,-COO- ,-C ≡ C- ,- CF₂O-、-OCF₂- substitution, X₁Expression-CH₂- or oxygen atom.)

And containing one or more be selected from compound group represented by formula (L-1)~formula (L-6) into Compound in group,

[changing 2]

(in formula, R^L11~R^L62The alkyl of carbon number 1 to 10 or the alkenyl of carbon number 2 to 10 are represented independently of each other, But at least one party represents the alkenyl of carbon number 2 to 10, X^L61And X^L62Hydrogen atom or fluorine atom are represented independently of each other, but at least One side represents hydrogen atom.), further, there is provided used the liquid crystal display cells of the liquid-crystal composition.

Invention effect

Δ ε of the invention is the liquid crystalline phase that negative liquid-crystal composition has wide temperature range, with it is compared with the past significantly Low viscosity, favorable solubility during low temperature, its resistivity, voltage retention are minimum because of the degree of heat, light change, particularly long Change in time is small.Therefore, liquid-crystal composition of the invention is high in the applicability in practical use to liquid crystal product, has used The liquid crystal display cells for stating VA types, PSVA types, the N-shaped FFS types of liquid-crystal composition etc. can realize high-speed response.In addition, by After the manufacturing process of liquid crystal display cells, liquid-crystal composition of the invention can also play consistently its performance, therefore result from The display of manufacturing process is bad to be suppressed, and can manufacture liquid crystal display cells to high finished product rate, therefore highly useful.

Specific embodiment

(25 DEG C) preferably in room temperature of composition of the invention is in liquid crystalline phase, further preferably in nematic phase.Additionally, of the invention Composition contain that dielectricity is substantially neutral compound (value of Δ ε is -2~2) and dielectricity is negative compound (Δ ε Value less than 2).It is explained, the dielectric constant anisotropy of compound is that dielectricity is substantially when being added to 25 DEG C Neutral composition and the measured value of the dielectric constant anisotropy of composition modulated extrapolate the value for obtaining.It is explained , with % records, it means quality % to following content.

In liquid-crystal composition of the invention, contain the compound represented by logical formula (I).

[changing 3]

Specifically, it is following such formulas (I-1) and the compound represented by formula (I-2).

[changing 4]

R¹Represent the straight chained alkyl or branched alkyl of carbon number 1 to 22, one or more the CH in the alkyl₂ Base can be in the way of oxygen atom not be abutted directly against by-O- ,-CH=CH- ,-CO- ,-OCO- ,-COO- ,-C ≡ C- ,-CF₂O-、- OCF₂- substitution, but the preferably straight chain alcoxyl of the straight chained alkyl of carbon number 1 to 10, branched alkyl or carbon number 1 to 10 Base.

In liquid-crystal composition of the invention, the compound represented by logical formula (I) preferably comprises one or two, further excellent Choosing is containing one kind to five kinds, it is contemplated that the characteristic, its content such as dissolubility, transition temperature, electric reliability, birefringence during low temperature There is higher limit and lower limit in each implementation method.

Relative to the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of the compound represented by formula (I) For 0.001%, for 0.005%, for 0.01%, be 0.02%.The higher limit of preferred content is 0.1%, for 0.08%, be 0.05%.

Its content is preferably 0.001 to 1 quality %, more preferably 0.001 to 0.1 quality %, particularly preferably 0.001 to 0.05 quality %.

Liquid-crystal composition of the invention contains one or more and is selected from by represented by formula (L-1)~formula (L-6) Compound group into group in compound.

[changing 5]

R in formula^L11~R^L62The alkyl of carbon number 1 to 10 or the alkenyl of carbon number 2 to 10 are represented independently of each other, But at least one party represents the alkenyl of carbon number 2 to 10.X^L61And X^L62Hydrogen atom or fluorine atom are represented independently of each other, but at least One side represents hydrogen atom.

Compound represented by formula (L-1)~formula (L-6) be respectively preferably it is following shown in formulas (L-1-A)~logical Compound represented by formula (L-6-A).

[changing 6]

In formula, R^L12A~R^L62AThe alkyl of carbon number 1 to 8, R are represented independently of each other^L11B~R^L61BSeparate earth's surface Show the alkyl of hydrogen atom or carbon number 1 to 8, n^L11C~n^L61C0 to 8 integer, R are represented independently of each other^L12A~R^L62AMutually The alkyl of carbon number 1 to 5 is independently preferably,^11B~R^L61BHydrogen atom or carbon number 1 to 3 are preferably independently of each other Alkyl, n^L11C~n^L61CAny integer in preferably 0~4, further preferably represents 0 to 2 integer independently of each other.

More specifically,

[changing 7]

Group represented by any one preferably in formula (R1) to formula (R5).

[changing 8]

Compound represented by formula (L-1-A) is preferably selected from the chemical combination of the compound group represented by formula (L-1-1) Thing.

[changing 9]

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (L-1-1) Limit value is 1%, for 2%, for 3%, for 5%, for 7%, be 10%.The higher limit of preferred content is relative to liquid crystal group of the invention The total amount of compound is 30%, for 25%, for 20%, for 15%, for 13%, for 10%, for 8%, for 7%, for 6%, for 5%, It is 3%.

Compound represented by formula (L-1-1) is preferably selected from the change represented by formula (L-1-1.1) to formula (L-1-1.3) Compound represented by the compound of compound group, preferably formula (L-1-1.2) or formula (L-1-1.3), is particularly preferably formula (L- Compound represented by 1-1.3).

[changing 10]

Relative to the total amount of liquid-crystal composition of the invention, the preferred content of the compound represented by formula (L-1-1.3) Lower limit is 1%, for 2%, for 3%, for 5%, for 7%, be 10%.The higher limit of preferred content is relative to liquid crystal of the invention The total amount of composition is 30%, for 25%, for 20%, for 15%, for 13%, for 10%, for 8%, for 7%, for 6%, be 5%th, it is 3%.

Compound represented by formula (L-1-A) is preferably selected from the chemical combination of the compound group represented by formula (L-1-2) Thing.

[changing 11]

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (L-1-2) Limit value is 1%, for 5%, for 10%, for 15%, for 17%, for 20%, for 23%, for 25%, for 27%, for 30%, be 35%.The higher limit of preferred content relative to liquid-crystal composition of the invention total amount for 60%, for 55%, for 50%, be 45%th, be 42%, for 40%, for 38%, for 35%, for 33%, be 30%.

Further, the compound represented by formula (L-1-2) is preferably selected from formula (L-1-2.1) to formula (L-1-2.4) institute Compound represented by the compound of the compound group of expression, preferably formula (L-1-2.2) to formula (L-1-2.4).Particularly, formula (L-1-2.2) compound represented by especially improves the response speed of composition of the invention, therefore preferably.In addition, compared to sound When answering speed more to require Tni high, formula (L-1-2.3) or the compound represented by formula (L-1-2.4) are preferably used.In order that low temperature When solubility it is good, the content of the compound represented by formula (L-1-2.3) and formula (L-1-2.4) should not be set to more than 30%.

[changing 12]

Relative to the total amount of liquid-crystal composition of the invention, the preferred content of the compound represented by formula (L-1-2.2) Lower limit is 10%, for 15%, for 18%, for 20%, for 23%, for 25%, for 27%, for 30%, for 33%, for 35%, For 38%, be 40%.The higher limit of preferred content relative to liquid-crystal composition of the invention total amount for 60%, for 55%, be 50%th, be 45%, for 43%, for 40%, for 38%, for 35%, for 32%, for 30%, for 27%, for 25%, be 22%.

Relative to the total amount of liquid-crystal composition of the invention, and with the compound and formula (L-1- represented by formula (L-1-1.3) 2.2) lower limit of total preferred content during compound represented by is 10%, for 15%, for 20%, for 25%, for 27%, For 30%, for 35%, be 40%.The higher limit of preferred content relative to composition of the invention total amount for 60%, for 55%, For 50%, for 45%, for 43%, for 40%, for 38%, for 35%, for 32%, for 30%, for 27%, for 25%, be 22%.

Compound represented by formula (L-1-A) is preferably selected from formula (L-1-4) and the compound represented by (L-1-5) The compound of group.

[changing 13]

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (L-1-4) Limit value is 1%, for 5%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative to this hair The total amount of bright liquid-crystal composition is 25%, for 23%, for 20%, for 17%, for 15%, for 13%, be 10%.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (L-1-5) Limit value is 1%, for 5%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative to this hair The total amount of bright liquid-crystal composition is 25%, for 23%, for 20%, for 17%, for 15%, for 13%, be 10%.

Further, formula (L-1-4) and the compound represented by (L-1-5) are preferably selected from formula (L-1-4.1) to formula (L- Compound represented by the compound of the compound group represented by 1-5.3), preferably formula (L-1-4.2) or formula (L-1-5.2).

[changing 14]

Relative to the total amount of liquid-crystal composition of the invention, the preferred content of the compound represented by formula (L-1-4.2) Lower limit is 1%, for 2%, for 3%, for 5%, for 7%, for 10%, for 13%, for 15%, for 18%, be 20%.It is preferred that containing The higher limit of amount relative to liquid-crystal composition of the invention total amount for 20%, for 17%, for 15%, for 13%, for 10%, be 8%th, it is 7%, is 6%.

It is preferred that will be selected from formula (L-1-1.3), formula (L-1-2.2), formula (L-1-3.1), formula (L-1-3.3), formula (L-1- 3.4), the two or more compound combination of formula (L-1-3.11) and the compound represented by formula (L-1-3.12), preferably will choosing From formula (L-1-1.3), formula (L-1-2.2), formula (L-1-3.1), formula (L-1-3.3), formula (L-1-3.4) and formula (L-1-4.2) institute The two or more compound combination of the compound of expression, the lower limit of the preferred content of total content of these compounds is relative In liquid-crystal composition of the invention total amount for 1%, for 2%, for 3%, for 5%, for 7%, for 10%, for 13%, for 15%, For 18%, for 20%, for 23%, for 25%, for 27%, for 30%, for 33%, be 35%, higher limit is relative to of the invention The total amount of liquid-crystal composition is 80%, for 70%, for 60%, for 50%, for 45%, for 40%, for 37%, for 35%, be 33%th, be 30%, for 28%, for 25%, for 23%, be 20%.In the case of paying attention to the reliability of composition, will preferably be selected from Formula (L-1-3.1), formula (L-1-3.3) and formula (L-1-3.4)) represented by compound two or more compound combinations, weight In the case of response speed depending on composition, preferably will be selected from the compound represented by formula (L-1-1.3), formula (L-1-2.2) Two or more compound combinations.

Compound represented by formula (L-2-A) is preferably selected from the chemical combination represented by formula (L-2.7) to formula (L-2.12) The compound of thing group.

[changing 15]

Relative to the total amount of liquid-crystal composition of the invention, the preferred content of the compound represented by formula (L-2-A) Lower limit is 1%, for 2%, for 3%, for 5%, for 7%, be 10%.The higher limit of preferred content is relative to liquid crystal of the invention The total amount of composition is 20%, for 15%, for 13%, for 10%, for 8%, for 7%, for 6%, for 5%, be 3%.

Compound represented by formula (L-3-A) is preferably selected from the chemical combination represented by formula (L-3.8) to formula (L-3.13) The compound of thing group.

[changing 16]

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (L-3-A) Limit value is 1%, for 2%, for 3%, for 5%, for 7%, be 10%.The higher limit of preferred content is relative to liquid crystal group of the invention The total amount of compound is 20%, for 15%, for 13%, for 10%, for 8%, for 7%, for 6%, for 5%, be 3%.

Compound represented by formula (L-4-A) is preferably the compound represented by formula (L-4.1) to formula (L-4.3).

[changing 17]

Relative to the total amount of liquid-crystal composition of the invention, the preferred content of the compound represented by formula (L-4-A) Lower limit is 1%, for 2%, for 3%, for 5%, for 7%, for 10%, for 14%, for 16%, for 20%, for 23%, be 26%th, be 30%, for 35%, be 40%.Relative to the total amount of liquid-crystal composition of the invention, the chemical combination represented by formula (L-4) The higher limit of the preferred content of thing is 50%, for 40%, for 35%, for 30%, for 20%, for 15%, for 10%, be 5%.

Combination on the compound represented by preferred formula (L-4-A), dissolubility, transformation temperature during according to low temperature The required performances such as degree, electric reliability, birefringence, for example, the compound represented by formula (L-4.1) can be contained, can contain Compound represented by formula (L-4.2), can also contain the compound represented by formula (L-4.1) and the chemical combination represented by (L-4.2) Compound represented by both things, or formula (L-4.1) to formula (L-4.3) contains.Relative to liquid crystal of the invention The lower limit of the preferred content of the compound represented by the total amount of composition, formula (L-4.1) or formula (L-4.2) is 3%, for 5%, For 7%, for 9%, for 11%, for 12%, for 13%, for 18%, be 21%, preferred higher limit is 45, for 40%, be 35%th, be 30%, for 25%, for 23%, for 20%, for 18%, for 15%, for 13%, for 10%, be 8%.

In the case of both compounds represented by the compound represented by formula (L-4.1) and formula (L-4.2), phase For the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of two compounds is 15%, for 19%, for 24%, Be 30%, preferred higher limit is 45%, for 40%, for 35%, for 30%, for 25%, for 23%, for 20%, for 18%, be 15%th, it is 13%.

Compound represented by formula (L-5-A) is preferably formula (L-5.1) or the compound represented by formula (L-5.2).

[changing 18]

Relative to the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of these compounds is 1%, is 2%th, be 3%, for 5%, for 7%, for 10%, for 14%, for 16%, for 20%, for 23%, for 26%, for 30%, be 35%th, it is 40%.The higher limit of the preferred content of these compounds is 50%, for 40%, for 35%, for 30%, for 20%, be 15%th, it is 10%, is 5%.

Compound represented by formula (L-6-A) is preferably the compound represented by formula (L-6.10) to formula (L-6.17).

[changing 19]

Relative to the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of these compounds is 1%, is 2%th, be 3%, for 5%, be 7%.The higher limit of the preferred content of these compounds is 20%, for 15%, for 13%, be 10%th, it is 9%.

Liquid-crystal composition of the invention contains one or more and is selected from by represented by formula (L-1)~formula (L-6) Compound group into group in compound, preferably comprise the compound represented by formula (L-1), preferably comprise formula (L-1) With the compound represented by formula (L-2), formula (L-1) and the compound represented by formula (L-3) are preferably comprised, preferably comprised Compound represented by formula (L-1) and formula (L-4), preferably comprises formula (L-1) and the chemical combination represented by formula (L-5) Thing, preferably comprises formula (L-1) and the compound represented by formula (L-6).

Liquid-crystal composition of the invention preferably comprises the compound represented by one or more formulas (N-1).

[changing 20]

(in formula, R^N11And R^N12Represent independently of each other the alkyl of carbon number 1 to 10, alkoxy or carbon number 2 to 10 alkenyl, n^N11And n^N12Represent 0 or 1, n^N11+n^N12Represent 0 or 1.)

Compound represented by formula (N-1) is characterised by, has with more than two phenyl ring, and on the phenyl ring Two fluorine-based.These compounds show that dielectric constant anisotropy (Δ ε) is the big such properties of negative, Δ n.

Compound represented by formula (N-1) is preferably the compound of the absolute value more than 3 of Δ ε.

In formula (N-1), R^N11And R^N12The separately alkyl of preferred carbon number 1~8, the alkane of carbon number 1~8 The alkenyloxy group of epoxide, the alkenyl of carbon number 2~8 or carbon number 2~8, the preferably alkyl of carbon number 1~5, carbon number The alkenyloxy group of 1~5 alkoxy, the alkenyl of carbon number 2~5 or carbon number 2~5, more preferably carbon number 1~ 5 alkyl or the alkenyl of carbon number 2~5, the more preferably alkene of the alkyl of carbon number 2~5 or carbon number 2~3 The alkenyl (acrylic) of base, particularly preferably carbon number 3.

In addition, R^N11And R^N12In the case where its ring structure for being combined is phenyl (aromatic series), the preferred carbon of straight-chain The alkenyl of the alkyl of atomicity 1~5, the alkoxy of the carbon number 1~4 of straight-chain and carbon number 4~5, is combined at it Ring structure in the case of hexamethylene, the preferred carbon number 1~4 of the alkyl of the carbon number 1~5 of straight-chain, straight-chain Alkoxy and straight-chain carbon number 2~5 alkenyl.In order that nematic phase is stabilized, oxygen of the carbon atom with the presence of is former The total of son is preferably less than 5, preferably straight-chain.

As alkenyl, the group represented by any one in formula (R1) to formula (R5) is preferably selected from.(the stain table in various Show the carbon atom in ring structure.)

[changing 21]

Relative to the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of the compound represented by formula (N-1) Be worth for 1%, for 10%, for 20%, for 30%, for 40%, for 50%, for 55%, for 60%, for 65%, for 70%, be 75%th, it is 80%.The higher limit of preferred content is 95%, for 85%, for 75%, for 65%, for 55%, for 45%, for 35%, For 25%, be 20%.

As the compound represented by formula (N-1), the compound represented by preferred formula (N-1-3).

[changing 22]

(in formula, R^N131And R^N132Separately represent and the R in formula (N-1)^N11And R^N12Identical implication.)

R^N131It is preferred that the alkenyl of the alkyl of carbon number 1~5 or carbon number 2~5, preferably ethyl, propyl group or butyl. R^N132It is preferred that the alkoxy of the alkyl of carbon number 1~5, the alkenyl of carbon number 4~5 or carbon number 1~4, preferably ethoxy Base, propoxyl group or butoxy.

Compound represented by formula (N-1-3) can be used alone, it is also possible to be applied in combination two or more compounds. The species of combined compound is not particularly limited, dissolubility, transition temperature, electric reliability during according to low temperature, birefringence The required performance such as rate and proper combination is used.The species of the compound on being used, such as in a reality of the invention In applying mode, be it is a kind of, for two kinds, for three kinds, for four kinds, be more than five kinds.

In the case of paying attention to the improvement of Δ ε, content is preferably set to height, in the case of deliquescent when paying attention to low temperature, Content is set at most effect high, payes attention to T_NIIn the case of, content is set at most effect high.Further, improvement drop impression, In the case of burn-in characteristic, content range is preferably set in centre.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (N-1-3) Limit value is 5%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative to liquid of the invention The total amount of crystal composite is 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, be 13%.

Further, the compound represented by formula (N-1-3) is preferably selected from formula (N-1-3.1) to formula (N-1-3.11) institute Compound represented by the compound of the compound group of expression, preferably formula (N-1-3.1)~(N-1-3.7), preferred formula (N-1- 3.1), the compound represented by formula (N-1-3.2), formula (N-1-3.3), formula (N-1-3.4) and formula (N-1-3.6).

[changing 23]

Compound represented by formula (N-1-3.1)~formula (N-1-3.4) and formula (N-1-3.6) can be used alone, and also may be used To be applied in combination, the combination of preferred formula (N-1-3.1) and formula (N-1-3.2), selected from formula (N-1-3.3), formula (N-1-3.4) and formula (N-1-3.6) combination of two or three.Relative to composition of the invention total amount it is independent or these compounds excellent Select the lower limit of content for 5%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content relative to The total amount of liquid-crystal composition of the invention is 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, be 15%th, it is 13%.

As the compound represented by formula (N-1), it is also preferred that the compound represented by formula (N-1-4).

[changing 24]

(in formula, R^N141And R^N142Separately represent and the R in formula (N-1)^N11And R^N12Identical implication.)

R^N141It is preferred that the alkenyl of the alkyl of carbon number 1~5 or carbon number 2~5, preferably ethyl, propyl group or butyl. R^N142It is preferred that the alkoxy of the alkyl of carbon number 1~5, the alkenyl of carbon number 4~5 or carbon number 1~4, preferably ethoxy Base, propoxyl group or butoxy.

Compound represented by formula (N-1-4) can be used alone, it is also possible to be applied in combination two or more compounds. The species of combined compound is not particularly limited, dissolubility, transition temperature, electric reliability during according to low temperature, birefringence The desired performance such as rate and proper combination is used.The species of the compound on being used, such as in one of the invention implementation Be in mode it is a kind of, for two kinds, for three kinds, for four kinds, be more than five kinds.

In the case of paying attention to the improvement of Δ ε, content is preferably set to height, in the case of deliquescent when paying attention to low temperature, Content is set at most effect high, payes attention to T_NIIn the case of, content is set to effect at least high.Further, improvement drop impression, In the case of burn-in characteristic, content range is preferably set in centre.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (N-1-4) Limit value is 3%, for 5%, for 7%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative In liquid-crystal composition of the invention total amount for 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, be 15%th, be 13%, for 11%, for 10%, be 8%.

Further, the compound represented by formula (N-1-4) is preferably selected from formula (N-1-4.1) to formula (N-1-4.14) institute Compound represented by the compound of the compound group of expression, preferably formula (N-1-4.1)~(N-1-4.4), preferred formula (N-1- 4.1) compound and represented by formula (N-1-4.2).

[changing 25]

Compound represented by formula (N-1-4.1)~(N-1-4.4) may be used alone, can also be used in combination, relatively In the total amount of liquid-crystal composition of the invention, individually or these compounds preferred content lower limit be 3%, for 5%, be 7%th, be 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative to liquid crystal combination of the invention The total amount of thing is 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, for 13%, be 11%th, it is 10%, is 8%.

As the compound represented by formula (N-1), it is also preferred that the compound represented by formula (N-1-5).

[changing 26]

(in formula, R^N151And R^N152Separately represent and the R in formula (N)^N11And R^N12Identical implication.)

R^N151And R^N152The separately alkenyl or carbon atom of the alkyl of preferred carbon number 1~5, carbon number 4~5 The alkoxy of number 1~4, preferably cyclobutenyl, ethyl, propyl group or butyl.

Compound represented by formula (N-1-5) can be used alone, it is also possible to be applied in combination two or more compounds. The species of combined compound is not particularly limited, dissolubility, transition temperature, electric reliability during according to low temperature, birefringence The desired performance such as rate and proper combination is used.The species of the compound on being used, such as in one of the invention implementation Be in mode it is a kind of, for two kinds, for three kinds, for four kinds, be more than five kinds.

In the case of paying attention to the improvement of Δ ε, content is preferably set to height, in the case of deliquescent when paying attention to low temperature, Content is set to effect at least high, payes attention to T_NIIn the case of, content is set at most effect high.Further, improvement drop impression, In the case of burn-in characteristic, content range is preferably set in centre.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (N-1-5) Limit value is 5%, for 8%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative to this hair The total amount of bright liquid-crystal composition is 35%, for 33%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, For 15%, be 13%.

Further, the compound represented by formula (N-1-5) is preferably selected from formula (N-1-5.1) to formula (N-1-5.6) institute The compound of the compound group of expression, the preferred formula (compound represented by N-1-3.2 and formula (N-1-3.4).

[changing 27]

Compound represented by formula (N-1-5.2) and formula (N-1-5.4) may be used alone, can also be used in combination, phase For the total amount of liquid-crystal composition of the invention, individually or these compounds preferred content lower limit be 5%, for 8%, be 10%th, be 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is total relative to liquid-crystal composition of the invention Measure as 35%, for 33%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, be 13%.

Liquid-crystal composition of the invention can contain the compound represented by one or more formulas (N-4).

[changing 28]

(in formula, R⁴¹And R⁴²Alkyl, alkoxy or the carbon number 2 to 10 of carbon number 1 to 10 are represented independently of each other Alkenyl, X⁴¹Represent singly-bound ,-CH₂CH₂- or-CH₂O-, n^N41Represent 0 or 1.)

As the compound represented by formula (N-4), the compound represented by preferred formula (N-4-1).

[changing 29]

(in formula, R^N111And R^N112Separately represent and the R in formula (N-4)^N41And R^N42Identical implication.)

R^N111It is preferred that the alkenyl of the alkyl of carbon number 1~5 or carbon number 2~5, preferably propyl group or amyl group.R^N112It is preferred that The alkoxy of the alkyl, the alkenyl of carbon number 4~5 or carbon number 1~4 of carbon number 1~5, preferably ethyoxyl or fourth oxygen Base.

Compound represented by formula (N-4-1) can be used alone, it is also possible to be applied in combination two or more compounds. The species of combined compound is not particularly limited, dissolubility, transition temperature, electric reliability during according to low temperature, birefringence The desired performance such as rate and proper combination is used.The species of the compound on being used, such as in one of the invention implementation Be in mode it is a kind of, for two kinds, for three kinds, for four kinds, be more than five kinds.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (N-4-1) Limit value is 5%, for 10%, for 13%, for 15%, for 17%, for 20%, for 23%, for 25%, for 27%, for 30%, be 33%th, it is 35%.The higher limit of preferred content relative to liquid-crystal composition of the invention total amount for 50%, for 40%, be 38%th, be 35%, for 33%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, for 13%, be 10%th, be 8%, for 7%, for 6%, for 5%, be 3%.

Further, the compound represented by formula (N-4-1) is preferably selected from formula (N-4-1.1) to formula (N-4-1.14) institute Compound represented by the compound of the compound group of expression, preferably formula (N-4-1.1)~(N-4-1.4), preferred formula (N-4- 1.1) compound and represented by formula (N-4-1.3).

[changing 30]

Compound represented by formula (N-4-1.1)~(N-4-1.4) may be used alone, can also be used in combination, relatively In the total amount of liquid-crystal composition of the invention, individually or these compounds preferred content lower limit be 5%, for 10%, be 13%th, be 15%, for 17%, for 20%, for 23%, for 25%, for 27%, for 30%, for 33%, be 35%.Preferred content Total amount of the higher limit relative to liquid-crystal composition of the invention for 50%, for 40%, for 38%, for 35%, for 33%, be 30%th, be 28%, for 25%, for 23%, for 20%, for 18%, for 15%, for 13%, for 10%, for 8%, for 7%, be 6%th, it is 5%, is 3%.

As the compound represented by formula (N-4), the compound represented by preferred formula (N-4-2).

[changing 31]

(in formula, R^N121And R^N122Separately represent and the R in formula (N-4)^N41And R^N42Identical implication.)

R^N121It is preferred that the alkenyl of the alkyl of carbon number 1~5 or carbon number 2~5, preferably ethyl, propyl group, butyl or penta Base.R^N122It is preferred that the alkoxy of the alkyl of carbon number 1~5, the alkenyl of carbon number 4~5 or carbon number 1~4, preferably first Base, propyl group, methoxyl group, ethyoxyl or propoxyl group.

Compound represented by formula (N-4-2) can be used alone, it is also possible to be applied in combination two or more compounds. The species of combined compound is not particularly limited, dissolubility, transition temperature, electric reliability during according to low temperature, birefringence The desired performance such as rate and proper combination is used.The species of the compound on being used, such as in one of the invention implementation Be in mode it is a kind of, for two kinds, for three kinds, for four kinds, be more than five kinds.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (N-4-2) Limit value is 5%, for 7%, for 10%, for 13%, for 15%, for 17%, for 20%, for 23%, for 25%, for 27%, be 30%th, be 33%, for 35%, for 37%, for 40%, be 42%.The higher limit of preferred content is relative to liquid crystal group of the invention The total amount of compound is 50%, for 48%, for 45%, for 43%, for 40%, for 38%, for 35%, for 33%, for 30%, be 28%th, be 25%, for 23%, for 20%, for 18%, for 15%, for 13%, for 10%, for 8%, for 7%, for 6%, be 5%.

Further, the compound represented by formula (N-4-2) is preferably selected from formula (N-4-2.1) to formula (N-4-2.13) institute The compound of the compound group of expression, preferably formula (N-4-2.3) are to formula (N-4-2.7), formula (N-4-2.10), formula (N-4- 2.11) compound and represented by formula (N-4-2.13), in the case of paying attention to the improvement of Δ ε, preferred formula (N-4-2.3) to formula (N-4-2.7) compound represented by, payes attention to T_NIImprovement in the case of, preferably formula (N-4-2.10), formula (N-4-2.11) With the compound represented by formula (N-4-2.13).

[changing 32]

Compound represented by formula (N-4-2.1) to formula (N-4-2.13) may be used alone, can also be used in combination, phase For the total amount of liquid-crystal composition of the invention, individually or these compounds preferred content lower limit be 5%, for 10%, For 13%, for 15%, for 17%, for 20%, for 23%, for 25%, for 27%, for 30%, for 33%, be 35%.It is preferred that containing The higher limit of amount relative to liquid-crystal composition of the invention total amount for 50%, for 40%, for 38%, for 35%, for 33%, be 30%th, be 28%, for 25%, for 23%, for 20%, for 18%, for 15%, for 13%, for 10%, for 8%, for 7%, be 6%th, it is 5%, is 3%.

As the compound represented by formula (N-4), the compound represented by preferred formula (N-4-10).

[changing 33]

(in formula, R^N1101And R^N1102Separately represent and the R in formula (N-4)^N41And R^N42Identical implication.)

R^N1101It is preferred that the alkenyl of the alkyl of carbon number 1~5 or carbon number 2~5, preferably acrylic, ethyl, propyl group or Butyl.R^N1102It is preferred that the alkoxy of the alkyl of carbon number 1~5, the alkenyl of carbon number 4~5 or carbon number 1~4, preferably Ethyoxyl, propoxyl group or butoxy.

Compound represented by formula (N-4-10) can be used alone, it is also possible to make the combination of two or more compounds With.The species of combined compound is not particularly limited, dissolubility, transition temperature during according to low temperature, electric reliability, two-fold Penetrate the desired performance such as rate and proper combination is used.The species of the compound on being used, such as in a reality of the invention Apply in mode be it is a kind of, for two kinds, for three kinds, for four kinds, be more than five kinds.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (N-4-10) Limit value is 5%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative to liquid of the invention The total amount of crystal composite is 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, be 13%.

Further, the compound represented by formula (N-4-10) is preferably selected from formula (N-4-10.1) to formula (N-4- 10.15) compound represented by the compound of the compound group represented by, preferably formula (N-4-10.1)~(N-4-10.5), Compound represented by preferred formula (N-4-10.1) and formula (N-4-10.2).

[changing 34]

Compound represented by formula (N-4-10.1) and formula (N-4-10.2) may be used alone, can also be used in combination, Relative to the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of independent or these compounds is 5%, is 10%th, be 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is total relative to liquid-crystal composition of the invention Measure as 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, be 13%.

As the compound represented by formula (N-4), the compound represented by preferred formula (N-4-11).

[changing 35]

(in formula, R^N1111And R^N1112Separately represent and the R in formula (N-4)^N41And R^N42Identical implication.)

R^N1111It is preferred that the alkenyl of the alkyl of carbon number 1~5 or carbon number 2~5, preferably acrylic, ethyl, propyl group or Butyl.R^N1112It is preferred that the alkoxy of the alkyl of carbon number 1~5, the alkenyl of carbon number 4~5 or carbon number 1~4, preferably Ethyoxyl, propoxyl group or butoxy.

Compound represented by formula (N-4-11) can be used alone, it is also possible to make the combination of two or more compounds With.The species of combined compound is not particularly limited, dissolubility, transition temperature during according to low temperature, electric reliability, two-fold Penetrate the desired performance such as rate and proper combination is used.The species of the compound on being used, such as in a reality of the invention Apply in mode be it is a kind of, for two kinds, for three kinds, for four kinds, be more than five kinds.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (N-4-11) Limit value is 5%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative to liquid of the invention The total amount of crystal composite is 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, be 13%.

Further, the compound represented by formula (N-4-11) is preferably selected from formula (N-4-11.1) to formula (N-4- 11.15) compound represented by the compound of the compound group represented by, preferably formula (N-4-11.1)~(N-4-11.15), Preferred formula (the compound represented by N-4-11.2 and formula (N-4-11.4).

[changing 36]

Compound represented by formula (N-4-11.2) and formula (N-4-11.4) may be used alone, can also be used in combination, Relative to the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of independent or these compounds is 5%, is 10%th, be 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is total relative to liquid-crystal composition of the invention Measure as 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, be 13%.

As the compound represented by formula (N-4), the compound represented by preferred formula (N-4-12).

[changing 37]

(in formula, R^N1121And R^N1122Separately represent and the R in formula (N-4)^N41And R^N42Identical implication.)

R^N1121It is preferred that the alkenyl of the alkyl of carbon number 1~5 or carbon number 2~5, preferably ethyl, propyl group or butyl. R^N1122It is preferred that the alkoxy of the alkyl of carbon number 1~5, the alkenyl of carbon number 4~5 or carbon number 1~4, preferably ethoxy Base, propoxyl group or butoxy.

Compound represented by formula (N-4-12) can be used alone, it is also possible to make the combination of two or more compounds With.The species of combined compound is not particularly limited, dissolubility, transition temperature during according to low temperature, electric reliability, two-fold Penetrate the desired performance such as rate and proper combination is used.The species of the compound on being used, such as in a reality of the invention Apply in mode be it is a kind of, for two kinds, for three kinds, for four kinds, be more than five kinds.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (N-4-12) Limit value is 5%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative to liquid of the invention The total amount of crystal composite is 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, be 13%.

As the compound represented by formula (N-4), the compound represented by preferred formula (N-4-13).

[changing 38]

(in formula, R^N1131And R^N1132Separately represent and the R in formula (N-4)^N41And R^N42Identical implication.)

R^N1131It is preferred that the alkenyl of the alkyl of carbon number 1~5 or carbon number 2~5, preferably ethyl, propyl group or butyl. R^N1132It is preferred that the alkoxy of the alkyl of carbon number 1~5, the alkenyl of carbon number 4~5 or carbon number 1~4, preferably ethoxy Base, propoxyl group or butoxy.

Compound represented by formula (N-4-13) can be used alone, it is also possible to make the combination of two or more compounds With.The species of combined compound is not particularly limited, dissolubility, transition temperature during according to low temperature, electric reliability, two-fold Penetrate the desired performance such as rate and proper combination is used.The species of the compound on being used, such as in a reality of the invention Apply in mode be it is a kind of, for two kinds, for three kinds, for four kinds, be more than five kinds.

Relative to the total amount of liquid-crystal composition of the invention, under the preferred content of the compound represented by formula (N-4-13) Limit value is 5%, for 10%, for 13%, for 15%, for 17%, be 20%.The higher limit of preferred content is relative to liquid of the invention The total amount of crystal composite is 35%, for 30%, for 28%, for 25%, for 23%, for 20%, for 18%, for 15%, be 13%.

Liquid-crystal composition of the invention can be selected from formula (N-2) and formula (N-3) institute table containing one or more The compound of the compound for showing.

[changing 39]

(in formula, R^N21、R^N22、R^N31And R^N32Separately represent the alkyl of carbon number 1~8, one in the alkyl Or not adjacent more than two-CH₂- separately can by-CH=CH- ,-C ≡ C- ,-O- ,-CO- ,-COO- or- OCO- replaces,

A^N21、A^N22、A^N31And A^N32Separately represent selected from the group in the group being made up of following group,

(a) 1,4- cyclohexylidenes (- CH present in the group₂- or not adjacent more than two-CH₂- can be with By-O- substitutions.) and

(b) 1,4- phenylenes (- CH=present in the group or not adjacent more than two-CH=can by- N=replaces.)

(c) (c) naphthalene -2,6- diyls, 1,2,3,4-tetralin -2,6- diyls or decahydronaphthalenes -2,6- diyls (naphthalene -2, - CH=present in 6- diyls or 1,2,3,4-tetralin -2,6- diyls or not adjacent more than two-CH=can Replace with by-N=.)

Above-mentioned group (a), group (b) and group (c) can separately be taken by cyano group, fluorine atom or chlorine atom Generation,

Z^N21、Z^N22、Z^N31And Z^N32Separately represent singly-bound ,-CH₂CH₂-、-(CH₂)₄-、-OCH₂-、-CH₂O-、- COO-、-OCO-、-OCF₂-、-CF₂O- ,-CH=N-N=CH- ,-CH=CH- ,-CF=CF- or-C ≡ C-,

X^N21Hydrogen atom or fluorine atom are represented,

T^N31Expression-CH₂- or oxygen atom,

n^N21、n^N22、n^N31And n^N32Separately represent 0~3 integer, n^N21+n^N22And n^N31+n^N32It is separately 1st, 2 or 3, A^N21~A^N32、Z^N21~Z^N32During in the presence of multiple, they may be the same or different.)

It is chemical combination of negative and its absolute value more than 3 that compound represented by formula (N-2) and formula (N-3) is preferably Δ ε Thing.

In formula (N-2) and formula (N-3), R^N21、R^N22、R^N31And R^N32The separately alkane of preferred carbon number 1~8 The alkenyloxy group of base, the alkoxy of carbon number 1~8, the alkenyl of carbon number 2~8 or carbon number 2~8, preferably carbon number The alkenyloxy group of 1~5 alkyl, the alkoxy of carbon number 1~5, the alkenyl of carbon number 2~5 or carbon number 2~5, enters one Step is preferably the alkyl of carbon number 1~5 or the alkenyl of carbon number 2~5, the more preferably alkyl of carbon number 2~5 Or the alkenyl of carbon number 2~3, the particularly preferably alkenyl (acrylic) of carbon number 3.

In addition, R^N21、R^N22、R^N31And R^N32In the case where its ring structure for being combined is phenyl (aromatic series), preferably directly The alkenyl of the alkyl of the carbon number 1~5 of chain, the alkoxy of the carbon number 1~4 of straight-chain and carbon number 4~5, The ring structure that it is combined is hexamethylene, pyrans and twoIn the case of the ring structure of the saturations such as alkane, the carbon of preferably straight-chain is former The alkenyl of the carbon number 2~5 of the alkyl of subnumber 1~5, the alkoxy of the carbon number 1~4 of straight-chain and straight-chain.In order to Stabilize nematic phase, the total of oxygen atom of the carbon atom with the presence of is preferably less than 5, preferably straight-chain.

[changing 40]

A^N21、A^N22、A^N31And A^N32The separately preferably aromatic series when increase Δ n is required, in order to improve response speed Degree and preferably aliphatic, preferably represent anti-form-1, the fluoro- Isosorbide-5-Nitrae-phenylene of 4- cyclohexylidenes, Isosorbide-5-Nitrae-phenylene, 2-, 3- fluoro- 1, The fluoro- 1,4- phenylenes of 4- phenylenes, 3,5- bis-, the fluoro- 1,4- phenylenes of 2,3- bis-, 1,4- cyclohexadienylidenes, 1,4- are bicyclic [2.2.2] octamethylene, piperidines -1,4- diyls, naphthalene -2,6- diyls, decahydronaphthalenes -2,6- diyls or 1,2,3,4-tetralin - 2,6- diyls, more preferably represent following structures,

[changing 41]

More preferably represent anti-form-1,4- cyclohexylidenes or 1,4- phenylenes.

Z^N21、Z^N22、Z^N31And Z^N32Separately preferred expression-CH₂O-、-CF₂O-、-CH₂CH₂-、-CF₂CF₂- or it is single Key, more preferably-CH₂O-、-CH₂CH₂- or singly-bound, particularly preferably-CH₂O- or singly-bound.

X^N21It is preferred that fluorine atom.

T^N31It is preferred that oxygen atom.

n^N21+n^N22And n^N31+n^N32It is preferred that 1 or 2, preferably n^N21It is 1 and n^N22Combination, n for 0^N21It is 2 and n^N22It is 0 group Conjunction, n^N31It is 1 and n^N32Combination, n for 0^N31It is 2 and n^N32It is 0 combination.

Relative to the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of the compound represented by formula (N-2) Be worth for 1%, for 10%, for 20%, for 30%, for 40%, for 50%, for 55%, for 60%, for 65%, for 70%, be 75%th, it is 80%.The higher limit of preferred content is 95%, for 85%, for 75%, for 65%, for 55%, for 45%, for 35%, For 25%, be 20%.

Relative to the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of the compound represented by formula (N-3) Be worth for 1%, for 10%, for 20%, for 30%, for 40%, for 50%, for 55%, for 60%, for 65%, for 70%, be 75%th, it is 80%.The higher limit of preferred content is 95%, for 85%, for 75%, for 65%, for 55%, for 45%, for 35%, For 25%, be 20%.

In the case that the viscosity of composition of the invention is kept as into composition that is low, needing fast response time, preferably go up State that lower limit is low and higher limit is low.Further, the Tni of composition of the invention is kept as height, needs temperature stability good In the case of composition, preferably above-mentioned lower limit is low and higher limit is low.In addition, in order to driving voltage is kept as into low and desired increasing During big dielectric constant anisotropy, preferably above-mentioned lower limit is high and higher limit is high.

Compound represented by formula (N-2) is preferably selected from the compound group represented by formula (N-2-1)~(N-2-3) Compound.

Compound represented by formula (N-2-1) is following compounds.

[changing 42]

(in formula, R^N211And R^N212Separately represent and the R in formula (N-1)^N11And R^N12Identical implication.)

Compound represented by formula (N-2-2) is following compounds.

[changing 43]

(in formula, R^N221And R^N222Separately represent and the R in formula (N-1)^N11And R^N12Identical implication.)

Compound represented by formula (N-2-3) is following compounds.

[changing 44]

(in formula, R^N231And R^N232Separately represent and the R in formula (N-1)^N11And R^N12Identical implication.)

Compound represented by formula (N-3) is preferably selected from the compound group represented by formula (N-3-1)~(N-3-2) Compound.

Compound represented by formula (N-3-1) is following compounds.

[changing 45]

(in formula, R^N311And R^N312Separately represent and the R in formula (N-1)^N11And R^N12Identical implication.)

Compound represented by formula (N-3-2) is following compounds.

[changing 46]

(in formula, R^N321And R^N322Separately represent and the R in formula (N-1)^N11And R^N12Identical implication.)

In liquid-crystal composition of the invention, as other compositions, the compound represented by formula (L-2-B) can be enumerated.

[changing 47]

(in formula, R^L21And R^L22Separately represent and the R in formula (L-2)^L21And R^L22Identical implication.)

R^L21It is preferred that the alkenyl of the alkyl of carbon number 1~5 or carbon number 2~5, R^L22It is preferred that the alkane of carbon number 1~5 The alkenyl of base or carbon number 4~5.

Further, the compound represented by formula (L-2-B) is preferably selected from represented by formula (L-2.3) to formula (L-2.6) Compound group compound, the preferably compound represented by formula (L-2.3) and formula (L-2.4).

[changing 48]

In liquid-crystal composition of the invention, as other compositions, the compound represented by formula (L-7) can be enumerated.

[changing 49]

(in formula, R^L71And R^L72Separately represent and the R in formula (L-1)^L11And R^L12Identical implication,

A^L71And A^L72Separately represent selected from the group in the group being made up of following group,

(7a) 1,4- cyclohexylidenes (- CH present in the group₂- or not adjacent more than two-CH₂- can be with By-O- substitutions.) and

(- a CH=present in the group or not adjacent more than two-CH=can be with for (7b) 1,4- phenylenes By-N=substitutions.)

(7c) (c) naphthalene -2,6- diyls, 1,2,3,4-tetralin -2,6- diyls or decahydronaphthalenes -2,6- diyls (naphthalene -2, - CH=present in 6- diyls or 1,2,3,4-tetralin -2,6- diyls or not adjacent more than two-CH=can Replace with by-N=.)

In above-mentioned group (7a), group (7b) and group (7c), separately, hydrogen atom can by cyano group, Fluorine atom or chlorine atom replace,

Z^L71Represent singly-bound ,-CH₂CH₂-、-(CH₂)₄-、-OCH₂-、-CH₂O-、-COO-、-OCO-、-OCF₂-、-CF₂O-、- CH=N-N=CH- ,-CH=CH- ,-CF=CF- or-C ≡ C-,

X^L71And X^L72Fluorine atom or hydrogen atom are separately represented, but at least one party represents hydrogen atom.)

In formula, R^L71And R^L72The separately alkenyl of the alkyl of preferred carbon number 1~5 or carbon number 2~5, A^L71 And A^L72Separately preferred Isosorbide-5-Nitrae-cyclohexylidene or Isosorbide-5-Nitrae-phenylene, A^L71And A^L72On hydrogen atom separately can be with It is replaced by fluorine atoms, Z^L71It is preferred that singly-bound or COO-, preferably singly-bound, X^L71And X^L72It is preferred that hydrogen atom.

The species of combined compound is not particularly limited, and the dissolubility, transition temperature, electricity during according to low temperature are reliable The required performances such as property, birefringence and combine.The species of the compound on being used, such as in a reality of the invention In applying mode, be it is a kind of, for two kinds, for three kinds, be four kinds.

In composition of the invention, the content of the compound represented by formula (L-7) is necessary dissolving during according to low temperature Property, transition temperature, electric reliability, birefringence, Technological adaptability, drop impression, burn-in, dielectric constant anisotropy etc. it is required Performance and suitably adjust.

Relative to the total amount of liquid-crystal composition of the invention, the lower limit of the preferred content of the compound represented by formula (L-7) Be worth for 1%, for 2%, for 3%, for 5%, for 7%, for 10%, for 14%, for 16%, be 20%.Relative to liquid of the invention The total amount of crystal composite, the higher limit of the preferred content of the compound represented by formula (L-7) is 30%, for 25%, for 23%, be 20%th, be 18%, for 15%, for 10%, be 5%.

In liquid-crystal composition of the invention, in the case of expecting the implementation method of Tni high, preferably make formula (L-7) represented Compound content it is many, in the case of expecting low viscous implementation method, preferably make content few.

Further, the compound represented by formula (L-7) is preferably the chemical combination represented by formula (L-7.1) to formula (L-7.4) Compound represented by thing, preferably formula (L-7.2).

[changing 50]

Further, the compound represented by formula (L-7) is preferably the change represented by formula (L-7.11) to formula (L-7.13) Compound represented by compound, preferably formula (L-7.11).

[changing 51]

Further, the compound represented by formula (L-7) is the compound represented by formula (L-7.21) to formula (L-7.23). Compound preferably represented by formula (L-7.21).

[changing 52]

Further, the compound represented by formula (L-7) is preferably the change represented by formula (L-7.31) to formula (L-7.34) Compound represented by compound, preferably formula (L-7.31) or/and formula (L-7.32).

[changing 53]

Further, the compound represented by formula (L-7) is preferably the change represented by formula (L-7.41) to formula (L-7.44) Compound represented by compound, preferably formula (L-7.41) or/and formula (L-7.42).

[changing 54]

Liquid-crystal composition of the invention does not preferably contain intramolecular, and there is the oxygen atoms such as peracid (- CO-OO-) structure to tie each other The compound of the structure of conjunction.

In the case of paying attention to the reliability and long-time stability of composition, preferably with respect to total matter of liquid crystal above-mentioned composition Amount and the content of the compound with carbonyl is set to less than 5%, be more preferably set to less than 3%, be further preferably set to 1% with Under, most preferably contain substantially no.

In the case of paying attention to the stability after UV irradiations, will substitution preferably with respect to the gross mass of above-mentioned liquid-crystal composition The content for having the compound of chlorine atom is set to less than 15%, is preferably set to less than 10%, is preferably set to less than 8%, more preferably sets It is less than 5%, is preferably set to less than 3%, further preferably contains substantially no.

It is preferred that make the content of the compound of all hexatomic rings of ring structure of intramolecular many, preferably with respect to above-mentioned liquid crystal group The gross mass of compound and the content of the compound of all hexatomic rings of the ring structure of intramolecular is set to more than 80%, more preferably set It is more than 90%, is further preferably set to more than 95%, most preferably substantially only by all hexatomic rings of ring structure of intramolecular Compound constitute composition.

In order to be deteriorated caused by the oxidation of composite inhibiting, preferably make the compound as ring structure with cyclohexadienylidene Content reduce, the content of the compound with cyclohexadienylidene is set preferably with respect to the gross mass of above-mentioned liquid-crystal composition It is less than 10%, is preferably set to less than 8%, be more preferably set to less than 5%, be preferably set to less than 3%, further preferably substantially Do not contain.

In the case of paying attention to the improvement of viscosity and the improvement of Tni, preferably make intramolecular that there is hydrogen atom can be optionally substituted by halogen 2- methylbenzenes-Isosorbide-5-Nitrae-diyl compound content it is few, will be above-mentioned preferably with respect to the gross mass of above-mentioned liquid-crystal composition The content in intramolecular with the compound of 2- methylbenzenes-Isosorbide-5-Nitrae-diyl is set to less than 10%, is preferably set to less than 8%, more excellent Choosing is set to less than 5%, is preferably set to less than 3%, further preferably contains substantially no.

Contained substantially no in the present invention and meant, do not contained in addition to the material for unintentionally containing.

In order to make the liquid crystal display cells of PS patterns, lateral electric-field type PSA patterns or lateral electric-field type PSVA patterns etc., Composition of the invention can contain polymerizable compound.As usable polymerizable compound, can enumerate using energy such as light Photopolymerization monomer that ray is polymerized etc., used as structure, can enumerate such as biphenyl derivatives, terphenyl derivatives etc. has Polymerizable compound for the liquid crystal skeleton that multiple hexatomic rings link etc..More specifically, preferably formula (XX) institute Two functional monomers for representing,

[changing 55]

(in formula, X²⁰¹And X²⁰²Hydrogen atom or methyl are represented independently of one another,

Sp²⁰¹And Sp²⁰²Singly-bound, the alkylidene of carbon number 1~8 or-O- (CH are preferably independently of one another₂)_s- (in formula, s 2 to 7 integer is represented, oxygen atom is incorporated into aromatic rings.),

Z²⁰¹Expression-OCH₂-、-CH₂O-、-COO-、-OCO-、-CF₂O-、-OCF₂-、-CH₂CH₂-、-CF₂CF₂- ,-CH= CH-COO- ,-CH=CH-OCO- ,-COO-CH=CH- ,-OCO-CH=CH- ,-COO-CH₂CH₂-、-OCO-CH₂CH₂-、- CH₂CH₂-COO-、-CH₂CH₂-OCO-、-COO-CH₂-、-OCO-CH₂-、-CH₂-COO-、-CH₂-OCO-、-CY¹=CY²- (formula In, Y¹And Y²Fluorine atom or hydrogen atom are represented independently of one another.) ,-C ≡ C- or singly-bound,

M²⁰¹Isosorbide-5-Nitrae-phenylene, anti-form-1,4- cyclohexylidenes or singly-bound are represented, it is any in the whole Isosorbide-5-Nitrae-phenylenes in formula Hydrogen atom can be replaced by fluorine atoms.).

It is preferred that X²⁰¹And X²⁰²Represent the diacrylate derivative of hydrogen atom or be respectively provided with the dimethyl allene of methyl Acid ester derivant a, it is also preferred that side represents hydrogen atom and the opposing party represents the compound of methyl.Polymerization on these compounds Speed, diacrylate derivative is most fast, and dimethylacrylate derivative is slow, and asymmetric compound is between which, can Preferred mode is used according to its purposes.In PSA display elements, particularly preferred dimethylacrylate derivative.

Sp²⁰¹And Sp²⁰²Singly-bound, the alkylidene of carbon number 1~8 or-O- (CH are represented independently of one another₂)_s-, it is aobvious in PSA Show in element, a preferably at least side is singly-bound, preferably represent the compound of singly-bound or a side represents singly-bound and the opposing party represents The alkylidene or-O- (CH of carbon number 1~8₂)_s- mode.In this case, it is preferred that 1~4 alkyl, s is preferably 1~4.

Z²⁰¹Preferably-OCH₂-、-CH₂O-、-COO-、-OCO-、-CF₂O-、-OCF₂-、-CH₂CH₂-、-CF₂CF₂- or it is single Key, more preferably-COO- ,-OCO- or singly-bound, particularly preferably singly-bound.

M²⁰¹Represent 1,4- phenylenes, anti-form-1 that arbitrary hydrogen atom can be replaced by fluorine atoms, 4- cyclohexylidenes or list Key, preferably Isosorbide-5-Nitrae-phenylene or singly-bound.In the case that C represents the ring structure beyond singly-bound, Z²⁰¹Company preferably beyond singly-bound Knot group, M²⁰¹In the case of singly-bound, Z²⁰¹Preferably singly-bound.

From the aspect of from these, in formula (XX), Sp²⁰¹And Sp²⁰²Between ring structure be particularly preferred as following record Structure.

In formula (XX), M²⁰¹In the case of representing that singly-bound, ring structure are formed by two rings, following formula is preferably represented (XXa-1) to formula (XXa-5), more preferably expression (XXa-1) are to formula (XXa-3), particularly preferred expression (XXa-1).

[changing 56]

[changing 57]

[changing 58]

[changing 59]

[changing 60]

(in formula, two ends and Sp²⁰¹Or Sp²⁰²With reference to.)

Polymerizable compound comprising these skeletons orientation restraining force after polymerisation is best suited for PSA type liquid crystal display unit Part, can obtain good state of orientation, therefore display is uneven suppressed or does not occur completely.

By upper, as polymerizable monomer, particularly preferably formula (XX-1)~formula (XX-4), wherein, most preferably lead to Formula (XX-2).

[changing 61]

[changing 62]

[changing 63]

[changing 64]

(in formula, Sp²⁰Represent the alkylidene of carbon number 2 to 5.)

In the case of to composition of the invention addition monomer, polymerization is also carried out during even if there be no polymerization initiator, but In order to promote polymerization also to contain polymerization initiator.As polymerization initiator, benzoin ethers, benzophenone, benzene can be enumerated Ethyl ketone class, benzil ketals class, acylphosphine oxide class etc..

In composition in the present invention, can be together with the compound of logical formula (I) further containing represented by formula (Q) Compound.

[changing 65]

(in formula, R^QRepresent carbon number 1 to 22 straight chained alkyl or branched alkyl, in the alkyl one or two with On CH₂Base can in the way of oxygen atom is not abutted directly against by-O- ,-CH=CH- ,-CO- ,-OCO- ,-COO- ,-C ≡ C- ,- CF₂O-、-OCF₂- substitution, M^QRepresent anti-form-1,4- cyclohexylidenes, 1,4- phenylenes or singly-bound.)

R^QRepresent the straight chained alkyl or branched alkyl of carbon number 1 to 22, one or more the CH in the alkyl₂ Base can be in the way of oxygen atom not be abutted directly against by-O- ,-CH=CH- ,-CO- ,-OCO- ,-COO- ,-C ≡ C- ,-CF₂O-、- OCF₂- substitution, the preferably straight chained alkyl of carbon number 1 to 10, unbranched alkoxy, a CH₂Base is replaced by-OCO- or-COO- Straight chained alkyl, branched alkyl, branched alkoxy, a CH₂The branched alkyl that base is replaced by-OCO- or-COO-, further preferably The straight chained alkyl of carbon number 1 to 20, a CH₂Straight chained alkyl, branched alkyl, branched alkane that base is replaced by-OCO- or-COO- Epoxide, a CH₂The branched alkyl that base is replaced by-OCO- or-COO-.M^QRepresent anti-form-1,4- cyclohexylidenes, 1,4- phenylenes Or singly-bound, preferably anti-form-1,4- cyclohexylidenes or Isosorbide-5-Nitrae-phenylene.

Represented by the more specifically preferably following formula (Q-a) to formula (Q-d) of compound represented by formula (Q) Compound.

[changing 66]

[changing 67]

[changing 68]

[changing 69]

In formula, R^Q1It is preferred that the straight chained alkyl or branched alkyl of carbon number 1 to 10, R^Q2It is preferred that carbon number 1 to 20 is straight Alkyl group or branched alkyl, R^Q3It is preferred that the straight chained alkyl of carbon number 1 to 8, branched alkyl, unbranched alkoxy or side chain alcoxyl Base, L^QIt is preferred that the straight-chain alkyl-sub or branched alkylidene of carbon number 1 to 8.Change represented by formula (Q-a) to formula (Q-d) In compound, the compound represented by further preferred formula (Q-c) and formula (Q-d).

When in liquid-crystal composition of the invention containing the compound represented by formula (Q), one kind is preferably comprised to five kinds, its Content is preferably 0.001 to 1%, more preferably 0.001 to 0.1%, particularly preferably 0.001 to 0.05%.

Composition containing polymerizable compound of the invention makes the polymerism contained by it by using ultraviolet irradiation Compound is polymerized and is endowed liquid crystal aligning energy, and the liquid crystal of the transmission light quantity of light is controlled for the birefringence using composition Display element.As liquid crystal display cells, in AM-LCD (active matrix liquid crystal display device), TN (nematic liquid crystal display units Part), STN-LCD (Supertwist Nematic Liquid Crystal Display element), in OCB-LCD and IPS-LCD (plane switching liquid crystal display element) It is useful, it is useful especially in AM-LCD, can be used in infiltration type or reflection type liquid crystal display element.

Two pieces of substrates of the liquid crystal cells used in liquid crystal display cells can be used glass or have as plastics soft Soft transparent material, also can a side be the opaque material such as silicon.Transparency carrier with transparent electrode layer for example can by Tin indium oxide (ITO) is sputtered on the transparency carriers such as glass plate and obtain.

Colour filter can for example be made by pigment dispersion method, print process, electrodeposition process or decoration method etc..To utilize pigment The colour filter preparation method of dispersion method is illustrated for one, and it is transparent that the curing colouration composition of colour filter is coated into this On substrate, implement patterned process, then solidify it by heating or light irradiation.The work is carried out respectively to the color of red, green, blue 3 Sequence, so as to the pixel portion of colour filter can be made.Additionally, may also set up being provided with TFT, thin film diode, metal on the substrate The pixel electrode of the active components such as insulator, metallic resistance rate element.

Make aforesaid substrate relative in the way of transparent electrode layer is inner side.Now, can be by between sept adjustment substrate Every.Now, the thickness of the light modulation layer that will preferably obtain is adjusted to 1~100 μm.More preferably 1.5 to 10 μm, use polarisation In the case of plate, the product of the refractive anisotrop Δ n and element thickness d of liquid crystal is preferably adjusted so that contrast is maximum.This Outward, also can be good by visual angle, setting contrast by adjusting the polarizing axis of each Polarizer in the case of with two pieces of Polarizers It is good.Further, it is possible to use the phase retardation film for expanding visual angle.As sept, can enumerate for example by glass particle, plastics Column spacer of the formation such as particle, aluminium oxide particles, photo anti-corrosion agent material etc..Afterwards, epoxy Thermocurable is combined The silk-screen printing in the form of being provided with liquid crystal injecting port of the sealants such as thing, in the substrate, the substrate is fitted each other, and heating makes sealing Agent heat cure.

Material is constituted as more than, specifically, in the base for possessing the common electrode being made up of transparent conductive material Plate and possesses the pixel electrode being made up of transparent conductive material and the film crystal of the pixel electrode that controls each pixel to possess Between the substrate of pipe, liquid-crystal composition of the invention is clamped, liquid crystal molecule during no applied voltage in liquid-crystal composition substantially hangs down Directly, by being set in this way such that it is able to taken into account high-speed response and shown the useful of bad suppression The liquid crystal display cells of VA patterns.Here, " substantially vertical " also includes thering is desired tilt angle compared to vertical direction State.On tilt angle, preferably from inclined vertically 1 °, 0.5 ° has further preferably been inclined.

In addition, on one substrate, each pixel has the common electrode and pixel electricity being made up of transparent conductive material Pole, another substrate is transparent insulation substrate, and liquid-crystal composition of the invention is clamped between this two pieces of substrates, is had on substrate The orientation film layer of homogeneous orientation is induced, the differently- oriented directivity of each alignment films is parallel, by being set in this way, can obtain To the useful IPS patterns or the liquid crystal display cells of FFS mode of having taken into account high-speed response and the bad suppression of display.

The method for making the composition containing polymerizable compound be clamped between two pieces of substrates can be used common vacuum injection Method or ODF methods etc., but in vacuum impregnation, although drop impression is not produced, but there is a problem of residual injection vestige, and the application sends out In bright, can more suitably be used for the display element manufactured using ODF methods.In the liquid crystal display cells manufacturing process of ODF methods, can Painted by using point gum machine by epoxy photo-thermal on either one substrate in backboard or foreboard and with the sealant of curability etc. Into closed loop dykes and dams shape, after the composition that scheduled volume is added dropwise thereto under degassing, engagement foreboard manufactures liquid crystal display with backboard Element.Because the dropwise addition of the composition in ODF operations can be carried out stably, therefore composition of the invention can be adapted to use.

Method as making polymerizable compound be polymerized, in order to obtain the good orientation characteristic of liquid crystal, expects appropriate gathering Sum velocity, thus preferably by individually simultaneously with or irradiation ultraviolet radiation or electron ray isoreactivity energy-ray are polymerized successively Method.In the case of using ultraviolet, polarized light source can be used, it is possible to use unpolarized light source.Additionally, so that polymerization will be contained Property compound the state that is held between two pieces of substrates of composition be polymerized in the case of, it is necessary at least irradiate the substrate of surface side There is the appropriate transparency to active energy beam.In addition it is also possible to use following methods：Only made using mask in light irradiation It is specific it is partially polymerized after, by changing the conditions such as electric field, magnetic field or temperature, become the state of orientation of unpolymerized part Change, and further irradiation active energy beam is polymerized.Particularly when ultraviolet exposure is carried out, preferably while to containing The composition of polymerizable compound applies AC field while carrying out ultraviolet exposure.The AC field optimized frequency for being applied The exchange of 10Hz to 10kHz, more preferably frequency 60Hz to 10kHz, voltage are carried out according to the desired tilt angle of liquid crystal display cells Selection.That is, the tilt angle of liquid crystal display cells can be controlled by the voltage for applying.In the liquid crystal of lateral electric-field type MVA patterns In display element, from from the viewpoint of orientation stability and contrast, preferably by tilt angle control at 80 degree to 89.9 degree.

Temperature during irradiation is preferably within the temperature range of the mesomorphic state that can keep composition of the invention.It is preferred that To approach the temperature of room temperature, be typically polymerized with 15~35 DEG C of temperature.As the lamp for producing ultraviolet, gold can be used Category halide lamp, high-pressure mercury-vapor lamp, extra-high-pressure mercury vapour lamp etc..Additionally, the wavelength of the ultraviolet as irradiation, preferably illumination wavelength Region is not at the ultraviolet of the absorbing wavelength region of composition, is preferably used after filtering (カット) ultraviolet as needed.According to The uitraviolet intensity penetrated preferably 0.1mW/cm²~100W/cm², more preferably 2mW/cm²~50W/cm².The ultraviolet of irradiation Energy can be adjusted suitably, preferably 10mJ/cm²To 500J/cm², more preferably 100mJ/cm²To 200J/cm².Irradiation is ultraviolet Intensity can also be changed during line.The time of irradiation ultraviolet radiation is suitably selected according to the uitraviolet intensity of irradiation, and preferably 10 Second to 3600 seconds, more preferably 10 seconds to 600 seconds.

The use of the liquid crystal display cells of composition of the invention is to have taken into account high-speed response and show the useful of bad suppression Liquid crystal display cells, it is especially useful in driven with active matrix liquid crystal display cells, be applicable to VA patterns, PSVA moulds Formula, PSA patterns, IPS patterns or ecb mode liquid crystal display cells.

Embodiment

Hereinafter, enumerate embodiment and the present invention is described in further detail, but the invention is not restricted to these embodiments.Additionally, with " % " means " quality % " in the composition of lower embodiment and comparative example.

In embodiment, the characteristic for being determined is as follows.

T_NI：Nematic phase-isotropic liquid phase transition temperature (DEG C)

Δn：Refractive anisotrop at 25 DEG C

Δε：Dielectric constant anisotropy at 25 DEG C

η：Viscosity (mPas) at 20 DEG C

γ1：Rotational viscosity (mPas) at 25 DEG C

VHR：Under conditions of frequency 60Hz, applied voltage 1V, the voltage retention (%) at 60 DEG C

VHR after 1000h：After placing 1000 hours under 90 DEG C of the condition of high temperature, in frequency 60Hz, applied voltage 1V Under the conditions of, the voltage retention (%) at 60 DEG C

Burn-in：

Burn-in evaluation on liquid crystal display cells, is predetermined fixed pattern is shown in viewing area 1000 hours Afterwards, the ghost level for carrying out fixed pattern when full frame uniformly shows is commented according to 4 following stages by visual observation Valency.

◎ is without ghost

Zero has few ghost, is permissible level

△ has ghost, is not permissible level

× there is ghost, it is excessively poor

Drop impression：

Drop impression evaluation on liquid crystal display device, emerges the drop of white when being and showing black for entire surface by visual observation Trace is evaluated according to 4 following stages.

◎ is without ghost

Zero has few ghost, is permissible level

△ has ghost, is not permissible level

× there is ghost, it is excessively poor

It is explained, the record on compound is using hereinafter referred to as in embodiment.

(side chain)

(ring structure)

[changing 70]

(embodiment 1, embodiment 2, comparative example 1 and comparative example 2)

Modulation liquid-crystal composition X as shown below.

[changing 71]

Liquid-crystal composition X

The physics value of liquid-crystal composition X is as follows.

[table 1]

Then, the compound with alkenyl chain base in liquid-crystal composition X is all substituted for alkyl side chain base Compound, modulate liquid-crystal composition 1.

[changing 72]

Liquid-crystal composition 1

The physics value of liquid-crystal composition 1 is as follows.

[table 2]

Liquid-crystal composition 1 containing the compound with alkenyl chain base with without the compound with alkenyl chain base Liquid-crystal composition X is compared, and γ 1 is low by about 15% for display rotational viscosity.

Then, added in 99.97% liquid-crystal composition 1 represented by 0.03% formula (I-1-1) or formula (I-2-1) Compound, modulation group compound A and composition B.

Its physics value is almost unchanged compared with liquid-crystal composition 1.

[changing 73]

It is combined thing A (embodiment 1), composition B (embodiment 2), the liquid-crystal composition of the compound without logical formula (I) The evaluation of the VHR, ghost and drop impression of the liquid-crystal composition X (comparative example 2) of 1 (comparative example 1) and the compound without logical formula (I), Show the result in following table.

[table 3]

By the liquid-crystal composition 1 shown in comparative example 1 by prolonged hot test, confirm VHR and decline compared with the initial stage, Also it is the result of difference in remaining evaluation, drop impression are evaluated, but in the composition A and composition B of the compound that with the addition of logical formula (I) The decline of VHR is suppressed, and good result is also show in remaining evaluation, drop impression evaluation.Without with alkenyl chain base In the liquid-crystal composition X of compound, the decline of VHR is also confirmed, remaining is evaluated, drop impression evaluation is poor.

(embodiment 3~6 and comparative example 3~4)

Liquid-crystal composition 2 and liquid-crystal composition 3 shown in modulation following table.

[table 4]

Then, the liquid-crystal composition 2 and liquid-crystal composition 3 for 99.97%, the formula (I-1-1) or formula of addition 0.03% (I-2-1) compound represented by, modulation group compound C~composition F.

With the addition of the physics value and original liquid crystal of the composition of formula (I-1-1) or the compound represented by formula (I-2-1) Composition is compared to almost unchanged.

It is combined thing C (embodiment 3), composition D (embodiment 4), composition E (embodiment 5), composition F (embodiments 6) liquid-crystal composition 2 (comparative example 3) of the compound, without logical formula (I) and the liquid-crystal composition of the compound without logical formula (I) The evaluation of the VHR, ghost and drop impression of 3 (comparative examples 4), shows the result in following table.

[table 5]

The composition of the compound containing logical formula (I) compared with the composition of compound of logical formula (I) is not contained, for a long time The VHR that causes of hot test decline and be suppressed, evaluate in remaining, also show good result in drop impression evaluation.

(embodiment 7~10 and comparative example 5~6)

Liquid-crystal composition 4 and liquid-crystal composition 5 shown in modulation following table.

[table 6]

Then, the liquid-crystal composition 4 and liquid-crystal composition 5 for 99.97%, the formula (I-1-1) or formula of addition 0.03% (I-2-1) compound represented by, modulation group compound G~composition J.

It is combined thing G (embodiment 7), composition H (embodiment 8), composition I (embodiment 9), composition J (embodiments 10) liquid-crystal composition 4 (comparative example 5) of the compound, without logical formula (I) and the liquid crystal combination of the compound without logical formula (I) The evaluation of the VHR, ghost and drop impression of thing 5 (comparative example 6), shows the result in following table.

[table 7]

Claims

1. a kind of liquid-crystal composition, it is characterised in that containing the compound represented by one or more logical formula (I)s, and contain Have one or more be selected from compound group represented by formula (L-1)~formula (L-6) into group in compound,

[changing 1]

In formula, R¹Represent the straight chained alkyl or branched alkyl of carbon number 1 to 22, one or more the CH in the alkyl₂ Base can be in the way of oxygen atom not be abutted directly against by-O- ,-CH=CH- ,-CO- ,-OCO- ,-COO- ,-C ≡ C- ,-CF₂O-、- OCF₂- substitution, X₁Expression-CH₂- or oxygen atom,

[changing 2]

In formula, R^L11~R^L62The alkyl of carbon number 1 to 10 or the alkenyl of carbon number 2 to 10 are represented independently of each other, but extremely A few side represents the alkenyl of carbon number 2 to 10, X^L61And X^L62Hydrogen atom or fluorine atom, but at least one party are represented independently of each other Represent hydrogen atom.

2. nematic liquid-crystal composition according to claim 1, contains the change represented by one or more formulas (N-1) Compound,

[changing 3]

In formula, R^N11And R^N12The alkene of the alkyl, alkoxy or carbon number 2 to 10 of carbon number 1 to 10 is represented independently of each other Base, n^N11And n^N12Represent 0 or 1, n^N11+n^N12Represent 0 or 1.

3. the liquid-crystal composition according to any one of claim 1 or 2, contains one or more formula (N-4) institutes The compound of expression,

[changing 4]

In formula, R⁴¹And R⁴²The alkenyl of the alkyl, alkoxy or carbon number 2 to 10 of carbon number 1 to 10 is represented independently of each other, X⁴¹Represent singly-bound ,-CH₂CH₂- or-CH₂O-, n^N41Represent 0 or 1.

4. the liquid-crystal composition according to any one of claim 1 or 2, the content of the compound represented by logical formula (I) is The 0.001 mass % of mass % to 1, the content of the compound represented by formula (L-1)~formula (L-6) adds up to 5 mass % To 70 mass %.

5. the liquid-crystal composition according to any one of claim 1 or 2, contains the polymerism chemical combination represented by formula (XX) Thing,

[changing 5]

In formula, X²⁰¹And X²⁰²Hydrogen atom or methyl are separately represented,

Sp²⁰¹And Sp²⁰²Separately represent singly-bound, the alkylidene of carbon number 1~8 or-O- (CH₂)_s-, formula-O- (CH₂)_s- In, s represents 2 to 7 integer, and oxygen atom is incorporated into aromatic rings,

Z²⁰¹Expression-OCH₂-、-CH₂O-、-COO-、-OCO-、-CF₂O-、-OCF₂-、-CH₂CH₂-、-CF₂CF₂- ,-CH=CH- COO- ,-CH=CH-OCO- ,-COO-CH=CH- ,-OCO-CH=CH- ,-COO-CH₂CH₂-、-OCO-CH₂CH₂-、-CH₂CH₂- COO-、-CH₂CH₂-OCO-、-COO-CH₂-、-OCO-CH₂-、-CH₂-COO-、-CH₂-OCO-、-CY¹=CY²- ,-C ≡ C- or list Key, formula-CY¹=CY²- in, Y¹And Y²Fluorine atom or hydrogen atom are separately represented,

M²⁰¹Represent Isosorbide-5-Nitrae-phenylene, anti-form-1,4- cyclohexylidenes or singly-bound, arbitrary hydrogen in the whole Isosorbide-5-Nitrae-phenylenes in formula Atom can be replaced by fluorine atoms.

6. a kind of liquid crystal display cells, it use the liquid-crystal composition any one of claim 1 or 2.

7. a kind of liquid crystal display cells, it has first substrate, the tool for possessing the common electrode being made up of transparent conductive material The of the thin film transistor (TFT) of the pixel electrode that the standby pixel electrode being made up of transparent conductive material and each pixel of control possess Two substrates and the liquid-crystal composition being held between the first substrate and second substrate, the liquid crystal in the liquid-crystal composition Orientation of the molecule in no applied voltage is substantially vertical relative to the substrate, as the liquid-crystal composition, has used right to want Seek the liquid-crystal composition described in 1.

8. a kind of liquid crystal display cells, the nematic liquid-crystal composition containing polymerizable compound described in usage right requirement 5, The polymerizable compound contained in the liquid-crystal composition is polymerized and make under voltage applying or under no-voltage applies.

9. a kind of liquid crystal display cells, the first transparent insulation substrate, the second transparent insulation substrate with relative configuration, described The liquid crystal layer containing liquid-crystal composition is clamped between first substrate and second substrate, on the first substrate, each pixel tool There are the common electrode and pixel electrode being made up of transparent conductive material, and the liquid crystal display cells have respectively described The orientation film layer of homogeneous orientation is induced between liquid crystal layer and the first substrate and second substrate, the differently- oriented directivity of each alignment films is put down OK, as the liquid-crystal composition, the liquid-crystal composition described in claim 1 has been used.