CN105038813B - Liquid-crystal composition - Google Patents
Liquid-crystal composition Download PDFInfo
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- CN105038813B CN105038813B CN201510408201.XA CN201510408201A CN105038813B CN 105038813 B CN105038813 B CN 105038813B CN 201510408201 A CN201510408201 A CN 201510408201A CN 105038813 B CN105038813 B CN 105038813B
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Abstract
The invention discloses a kind of liquid-crystal composition, comprising compound shown in compound shown in one or more formulas I and one or more formulas II, and the liquid-crystal composition includes compound shown in II A：Wherein each substituent provides its definition.There is low viscosity γ the present invention relates to composition1, moderate dielectric anisotropy Δ ε, moderate optical anisotropy Δ n, it is possible to achieve the quick response of liquid crystal display.
Description
Technical field
The present invention relates to field of liquid crystal display, and in particular to a kind of liquid-crystal composition and the liquid crystal comprising the liquid-crystal composition
Display element or liquid crystal display.
Background technology
At present, what the application of liquid-crystal compounds was expanded is increasingly wider, and it can be applied to polytype display, electricity
In optical device, sensor etc..Species for the liquid-crystal compounds of above-mentioned display field is various, and wherein nematic liquid crystal is using most
To be extensive.Nematic liquid crystal is had been applied in passive TN, STN matrix display and system with tft active matrix.
For thin-film transistor technologies (TFT-LCD) application field, although market is very huge in recent years, technology
It is gradually ripe, but requirement of the people to Display Technique also constantly improving, and is especially realizing quick response, reduction driving electricity
Pressure is with terms of reducing power consumption.Liquid crystal material is as one of important photoelectron material of liquid crystal display, to improving liquid crystal display
The performance of device plays an important role.
As liquid crystal material it is necessary to have good chemically and thermally stability and to electric field and the stabilization of electromagnetic radiation
Property.And as thin-film transistor technologies (TFT-LCD) liquid crystal material, do not need only to have as outside upward stability, should also have
Wider nematic temperature range, suitable birefringence anisotropy, very high resistivity, good uviolresistance
The performances such as energy, high electric charge conservation rate and low-steam pressure.
Show and apply for dynamic menu, eliminate display picture ghost and hangover, it is desirable to which liquid crystal has response speed quickly
Degree, therefore it is required that liquid crystal has relatively low rotary viscosity γ1；In addition, for portable set, in order to reduce equipment energy consumption, wishing
Hope that the driving voltage of liquid crystal is as low as possible；And for the display of the purposes such as TV, for the driving voltage requirement of liquid crystal
It is not so low.
The viscosity of liquid-crystal compounds, especially rotary viscosity γ1The response time after liquid crystal power-up is directly affected, either
Rise time (ton) or fall time (toff), all rotary viscosity γ with liquid crystal1It is proportional, rise time (ton) by
In relevant with liquid crystal cell and driving voltage, it can be adjusted by increasing the method for driving voltage with reduction liquid crystal cell box thickness；And
Fall time (toff), mainly with the elastic constant of liquid crystal with liquid crystal cell box thickness relevant, box thick decline unrelated with driving voltage
(t can be reduced fall timeoff), and under different display modes, the motion mode of liquid crystal molecule is different, tri- kinds of moulds of TN, IPS, VA
Formula respectively with average elastic constants K, distortion elastic constant, bend elastic constant inversely.
According to liquid crystal continuum theory, after a variety of liquid crystal are deformed upon under external force (electric field, magnetic field) effect, meeting
By intermolecular interaction, original shape is returned in meeting " resilience "；Likewise, liquid crystal is also due to intermolecular interaction
Power formation " viscosity ".The minor variations of liquid crystal molecule, can make the conventional parameter performance of liquid crystal occur obvious change, these changes
Have plenty of certain rule, seeming of having is difficult to find rule, can also be produced for the interaction between liquid crystal molecule substantially
Influence, these influences are very delicate, also do not form very perfect theoretical explanation so far.
The viscosity of liquid crystal is relevant with liquid crystal molecule structure, studies the viscosity and liquid of the liquid crystal system of different liquid crystal molecule formation
Relation between brilliant molecular structure is one of vital task of dispensing liquid crystal engineer.
The content of the invention
A kind of liquid crystal display cells it is an object of the invention to provide liquid-crystal composition and comprising the liquid-crystal composition or
Liquid crystal display, the liquid-crystal composition has relatively low viscosity, it is possible to achieve quick response, at the same have moderate dielectric each to
Different in nature Δ ε, moderate optical anisotropy Δ n, the high stability to light and heat.Liquid crystal display comprising the liquid-crystal composition
Element or liquid crystal display have wider nematic temperature range, suitable birefringence anisotropy, very high resistance
The performances such as rate, good anti-ultraviolet property, high electric charge conservation rate and low-steam pressure.
In order to realize above-mentioned advantageous effects, the invention provides a kind of liquid-crystal composition.Liquid provided by the present invention
Crystal composite includes compound shown in compound shown in one or more formulas I and one or more formulas II, and the liquid crystal
Composition includes compound shown in II-A：
Wherein, X represents OCF3、CF3、OCF2H or F；
R1、R2、R3The alkane that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10 is represented independently of one another
The alkene that alkoxy that alkoxy that base, carbon number are 1-10, the carbon number of fluorine substitution are 1-10, carbon number are 2-10
Base, fluorine substitution carbon number be 2-10 alkenyl, carbon number be 3-8 alkenyloxy or fluorine substitution carbon number be
3-8 alkenyloxy；
Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene or Isosorbide-5-Nitrae-cyclohexadienylidene are represented ,-the B of formula II does not include II-A chemical combination
Thing.
Liquid-crystal composition provided by the present invention must be comprising compound shown at least one formula I, and must include formula
Compound shown in the-A of compound Chinese style shown in II II, can also comprising in compound shown in one or more formulas II except the-A of formula II with
Other outer compounds.
Liquid-crystal composition of the present invention does not preferably include the liquid-crystal compounds containing-CN, not comprising containing pyridine, pyrimidine
Cycle compound.
The liquid-crystal compounds of the invention for not containing condensed cyclic structure further preferably.
Liquid-crystal composition Δ n [589nm, 25 DEG C] provided by the present invention>0.08, Δ ε [1KHz, 25 DEG C]>2, clearing point
Cp>70.0 DEG C, rotary viscosity γ1[25 DEG C] are between 40~110mPas.
Liquid-crystal composition provided by the present invention, compound preferred mass content is 1-20% wherein shown in formula I；- the A of formula II
Shown compound preferred content is 20-40%, and compound preferred content shown in formula II is 25-60%.
Preferably, liquid-crystal composition provided by the present invention does not include the liquid-crystal compounds containing-CN, and not
Include the liquid-crystal compounds containing pyridine or pyrimidine ring.
- CN has very big permanent dipole moment, and electron cloud is compared with horn of plenty, it is easy to which Liquidity limit is so as to cause liquid crystal electricity
The decline of performance, such as electric charge conservation rate VHR, electricalresistivityρ, power consumption etc.；Pyridine, pyrimidine cycle compound due under UV electronics it is easy
Cause quality decline in being excited.
It is linear that condensed cyclic structure liquid crystal molecule has not often possessed, and viscosity is bigger than normal, is unfavorable for improving liquid containing these compositions
Brilliant response speed.
The difference of X substituents, formula I is specially compound shown in the 1- I 4 of formula I：
Compound shown in formula I generally has the intersolubility good with other liquid crystal, and X substituents can be F, OCF3、CF3、
OCF2H, the difference of substituent, so type I compound dielectric anisotropy Δ ε is between 4-12, performance difference,
Fluorine atom is because with larger electronegativity, carbon-fluorine bond dipole moment is larger, can form one in the case of other substituent identicals
The dipole moment in fixed molecular long axis direction, can increase the dielectric anisotropy Δ ε of liquid crystal；Trifluoromethoxy due to fluorine atom compared with
Many, dipole moment can be some larger, and the contribution to the dielectric anisotropy Δ ε of liquid crystal can be more than fluorine atom, and due to increasing
Molecule, the clearing point CP of liquid crystal is higher, and K values are larger；Trifluoromethyl constitutes preferably linear, the idol of fluorine atom formation with phenyl ring
Polar moment is more likely to molecular long axis direction, I 3 has bigger dielectric anisotropy Δ ε compared with I 2, I 1 compounds, higher limpid
Point CP, higher K values, have the disadvantage that viscosity is slightly larger；The compound dielectric of difluoro-methoxy I 4 is approached with single fluorine atom, but liquid crystal
Clearing point CP it is high compared with I 2, I 1.
Such as：R1For n-pentyl, I 1 compound Δ ε are that 6, I 2 compound Δ ε are that 9, I 3 compound Δ ε can reach
12.0。
The optical anisotropy Δ n of the compounds of I 1- I 4 is within the scope of suitable, close to the Δ n of mixed liquid crystal, but again
Slightly different, between 0.11 to 0.13, and I 2, I 4 compounds are participated in due to the conjugation of oxygen atom, and Δ n is slightly larger.
Compound shown in one or more formulas II is comprising compound shown in the-A of formula II and preferably comprises II 1-
One or more compounds in compound shown in II 10：
The compound of formula II has very low rotary viscosity γ1, close to neutral dielectric anisotropy Δ ε, less optics
Anisotropy Δ n, has advantage improving liquid crystal viscosity, cryogenic property.Rotary viscosity of the different alkyl substituents to liquid crystal
γ1, clearing point CP all there is influence, general, longer alkyl chain or alkenylene chain can increase the rotary viscosity γ of liquid crystal1Simultaneously
Raising clearing point CP, but γ1It is minimum with the-A compounds of formula II.
While liquid-crystal composition of the present invention contains formula I, II compound of formula, one or more institutes of formula III can also be added
Show compound：
Wherein, R4Represent alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10
Alkenyl that alkoxy that the carbon number replaced for 1-10 alkoxy, fluorine is 1-10, carbon number are 2-10, fluorine replaces
The alkene oxygen that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that carbon number is 2-10 is 3-8
Base；
Represent 1,4- phenylenes, 1,4- cyclohexylidenes or 1,4- cyclohexadienylidenes.
Liquid-crystal composition provided by the present invention, compound preferred mass content is 5-20% wherein shown in formula III.
Compound shown in formula III is preferably：
The compound light anisotropy Δ n of formula III is moderate, and dielectric anisotropy Δ ε is between 4-9, relatively low rotary viscosity
γ1, clearing point CP is typically more than 120 DEG C, available for regulation mixed liquid crystal CP, Δ n, Δ ε, γ1Etc. parameter.The compound of formula III
R4It is preferred that C1-C5Straight chained alkyl.
While liquid-crystal composition of the present invention contains formula I, II compound of formula, one or more institutes of formula IV can also be added
Show compound
Wherein, R5Represent alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10
Alkenyl that alkoxy that the carbon number replaced for 1-10 alkoxy, fluorine is 1-10, carbon number are 2-10, fluorine replaces
The alkene oxygen that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that carbon number is 2-10 is 3-8
Base；
N represents 0 or 1；
(F) H or F is represented.
Liquid-crystal composition provided by the present invention, compound preferred mass content is 5-20% wherein shown in formula IV.
Compound R shown in formula IV5It is preferred that C1-C5Straight chained alkyl.Compound shown in formula IV has moderate Δ ε, higher
CP, relatively low viscosity is suitable for the viscosity of adjustable liquid crystal display, CP, Δ ε.
The compound of formula IV is preferably in addition：
Liquid-crystal composition provided by the present invention, can also add compound shown in one or more formulas V
Wherein, R6、R7The carbon number for representing alkyl, the fluorine substitution that carbon number is 1-10 independently of one another is 1-10's
The chain that alkoxy that alkoxy that alkyl, carbon number are 1-10, the carbon number of fluorine substitution are 1-10, carbon number are 2-10
The carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that alkenyl, the carbon number of fluorine substitution are 2-10
For 3-8 alkenyloxy；
Y1、Y2H or F is represented independently of one another, but asynchronously represents F；
Represent 1,4- phenylenes, 1,4- cyclohexylidenes or 1,4- cyclohexadienylidenes.
Liquid-crystal composition provided by the present invention, compound preferred mass content is 2-15% wherein shown in formula V.
The compound of formula V has very high CP, is conducive to expanding the temperature in use scope of liquid crystal.
Compound shown in formula V is preferably：
Compound R shown in formula V6、R7It is preferred that C1-C5Straight chained alkyl.
Liquid-crystal composition provided by the present invention, can also add compound shown in one or more formulas VI
Wherein, R8Represent alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10
Alkenyl that alkoxy that the carbon number replaced for 1-10 alkoxy, fluorine is 1-10, carbon number are 2-10, fluorine replaces
The alkene oxygen that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that carbon number is 2-10 is 3-8
Base；
Represent 1,4- phenylenes, 1,4- cyclohexylidenes or 1,4- cyclohexadienylidenes；
Represent 1,4- phenylenes, fluoro 1,4- phenylenes, 1,4- cyclohexylidenes, 1,4- cyclohexadienylidenes；
R9Represent that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that F, carbon number are 1-10 is 1-10 are
Alkenyl that alkoxy that 1-10 alkoxy, the carbon number of fluorine substitution are 1-10, carbon number are 2-10, the carbon of fluorine substitution
The alkene oxygen that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that atomicity is 2-10 is 3-8
Base.
Liquid-crystal composition provided by the present invention, compound preferred mass content is 5-30% wherein shown in formula VI.
The compound of formula VI is preferably：
Compound shown in formula VI -1, VI -2 is the close neutrality of dielectric anisotropy Δ ε, low rotary viscosity γ1, clearing point
Higher, K values are larger, can be used for the K values and γ for allocating liquid crystal1, so as to realize quick response.The compound of Terphenyls VI -5
Due to larger conjugated system, thus with very big optical anisotropy Δ n, be particularly suitable for use in the big refractive index of allotment
Mixed liquid crystal.
Liquid-crystal composition provided by the present invention, can also add compound shown in one or more formulas VII
Wherein, R10Represent alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10
For 1-10 alkoxy, fluorine replace carbon number be 1-10 alkoxy, carbon number be 2-10 alkenyl, fluorine substitution carbon
The alkenyloxy that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that atomicity is 2-10 is 3-8；
Represent 1,4- phenylenes, the 1,4- phenylenes of fluoro, 1,4- cyclohexylidenes, 1,4- cyclohexadienylidenes, 1,4-
One or disjunct two CH in cyclohexylidene2It is substituted with an oxygen the one or more in formed group；
P represents 2 or 3.
Liquid-crystal composition provided by the present invention, compound preferred mass content is 5-55% wherein shown in formula VII.
Compound shown in formula VII is preferably：
Compound shown in formula VII has larger dielectric anisotropy Δ ε, low rotary viscosity γ1, can be used for allotment
Liquid crystal compound is to reduce the response speed of liquid crystal drive voltage, quickening display device.
Liquid-crystal composition provided by the present invention, comprising or not comprising formula III, formula IV, formula V, formula VI, shown in formula VII
On the basis of compound, the change containing cycloalkyl shown in one or more formulas VIII -1, VIII -2 and/or VIII -3 can also be included
Compound：
Wherein,The sub- ring of 1,4- cyclohexylidenes, 1,4- is represented independently of one another
The disjunct CH of one or both of hexyl2The sub- benzene of the 1,4- of formed group, 1,4- phenylenes and/or fluoro is replaced by O
One or more in base；
Z1、Z2、Z3Singly-bound ,-CF are represented independently of one another2O- or-CH2O-；
M, k, g represent 1,2 or 3 independently of one another；
I represents 0,1 or 2；
R11Represent that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that F, carbon number are 1-10 is 1-10 are
Alkenyl that alkoxy that 1-10 alkoxy, the carbon number of fluorine substitution are 1-10, carbon number are 2-10, the carbon of fluorine substitution
The alkene oxygen that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that atomicity is 2-10 is 3-8
Base；
R12Represent that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-5 is 1-5 are 1-5's
Alkoxy, fluorine substitution carbon number be 1-5 alkoxy, carbon number be 2-5 alkenyl, fluorine substitution carbon number be
The alkenyloxy that the carbon number for alkenyloxy or the fluorine substitution that 2-5 alkenyl, carbon number is 3-5 is 3-5.
The compound of formula VIII does not contain the end group alkyl chain of softness, thus has relative between stronger rigidity, liquid crystal molecule
The change of effect, shows larger K values, higher CP.
VIII -1 compound is preferred：
VIII -2 compound is preferred：
VIII -3 compound is preferred：
The different proportion of each composition of liquid-crystal composition, can show slightly discrepant performance, such as dielectric anisotropy Δ
Transition temperature point CP, the low temperature stability inferior that ε, optical anisotropy Δ n, the nematic phase of liquid crystal are converted into liquid all can be poor
It is different, can apply to different types of display device, but it is identical the characteristics of be its rotary viscosity γ1It is relatively low.Applied to liquid crystal
Display device, it is possible to achieve quick response.
The dopant of various functions can also be added in liquid-crystal compounds provided by the present invention, dopant content is preferred
Between 0.01-1%, these dopants are mainly antioxidant, ultra-violet absorber, chiral agent.
Antioxidant, ultra-violet absorber are preferred：
S represents 1-10 integer.
Chiral agent is preferably (left-handed or dextrorotation)：
The invention further relates to the liquid crystal display cells comprising any one above-mentioned liquid-crystal composition or liquid crystal display；It is described
Display element or display are active matrix display element or display or passive matrix display element or display.
The preferred active array addressing liquid crystal display cells of liquid crystal display cells or liquid crystal display or liquid crystal display.
The active matrix display element or display are specially TN-TFT or IPS-TFT liquid crystal display cells or display
Device.
Liquid-crystal composition provided by the present invention has relatively low viscosity, it is possible to achieve quick response, while having moderate
Dielectric anisotropy Δ ε, moderate optical anisotropy Δ n, the high stability to light and heat.
Include the liquid crystal material of liquid-crystal composition provided by the present invention, not only with good chemically and thermally stability with
And to electric field and the stability of electromagnetic radiation.Moreover, using liquid crystal material as thin-film transistor technologies (TFT-LCD), also have
Wider nematic temperature range, suitable birefringence anisotropy, very high resistivity, good uviolresistance
The performances such as energy, high electric charge conservation rate and low-steam pressure.
Embodiment
With reference to specific embodiment, the present invention is further elaborated, but the present invention is not limited to following examples.Institute
It is conventional method unless otherwise instructed to state method.The raw material can be obtained from open commercial sources unless otherwise instructed.Institute
State percentage unless otherwise instructed, be mass percent.
In following embodiments,
CP represents clearing point, is directly determined using the micro- thermal analyzers of WRX-1S, sets heating rate as 3 DEG C/min.
Δ n represents optical anisotropy (589nm, 20 DEG C),
Δ ε represents dielectric anisotropy (25 DEG C, 1KHz, HP4284A, 5.2 microns of left-handed boxes of TN),
γ1Rotary viscosity (mpas) at 20 DEG C is represented, VHR (%) represents electric charge conservation rate (5V, 60Hz, 20 DEG C), ρ (×
1013 Ω cm) represent resistivity (20 DEG C)
Voltage retention VHR (%) tester and electricalresistivityρ (× 1013Ω cm) be TOYO06254 and
TOYO6517 type liquid crystal evaluation of physical property system (20 DEG C of test temperature, time 16ms, testing cassete is 7.0 microns)
Embodiment 1
Δε[1KHz,20℃]：8.2
Δn[589nm,20℃]：0.095
Cp：69℃
γ1：69mPa.s.
Embodiment 2
Δε[1KHz,20℃]：5.3
Δn[589nm,20℃]：0.103
Cp：112℃
γ1：126mPa.s.
Embodiment 3
Δε[1KHz,20℃]：8.7
Δn[589nm,20℃]：0.145
Cp：129℃
γ1：200mPa.s.
Embodiment 4
Δε[1KHz,20℃]：7.7
Δn[589nm,20℃]：0.109
Cp：90℃
γ1：85mPa.s.
Embodiment 5
Δε[1KHz,20℃]：8.1
Δn[589nm,20℃]：0.101
Cp：91℃
γ1：112mPa.s.
Embodiment 6
Δε[1KHz,20℃]：4.4
Δn[589nm,20℃]：0.101
Cp：68℃
γ1：71mPa.s.
Embodiment 7
Δε[1KHz,20℃]：4.4
Δn[589nm,20℃]：0.110
Cp：68℃
γ1[25℃]：75mPa.s
As can be seen from the above embodiments：The liquid-crystal composition of the present invention has relatively low rotary viscosity γ 1, for liquid crystal
Display, it is possible to achieve quick response.It is particularly suitable for TN, IPS pattern liquid crystal material.
Claims (8)
1. a kind of liquid-crystal composition, it is characterised in that the liquid-crystal composition include compound shown in one or more formulas I and
Compound shown in one or more formulas II, and the liquid-crystal composition includes compound shown in II-A：
Wherein, X represents OCF3、CF3、OCF2H or F；
R1、R2、R3Alkyl, carbon that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10 are represented independently of one another
Alkenyl that alkoxy that alkoxy that atomicity is 1-10, the carbon number of fluorine substitution are 1-10, carbon number are 2-10, fluorine
The carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that substituted carbon number is 2-10 is 3-8's
Alkenyloxy；
Represent 1,4- phenylenes, 1,4- cyclohexylidenes or 1,4- cyclohexadienylidenes；
The liquid-crystal composition is also comprising compound shown in one or more formulas III：
Wherein, R4Represent that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10 are 1-
Alkoxy that 10 alkoxy, the carbon number of fluorine substitution are 1-10, the alkenyl that carbon number is 2-10, fluorine substitution carbon it is former
The alkenyloxy that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that subnumber is 2-10 is 3-8；
Represent 1,4- phenylenes, 1,4- cyclohexylidenes or 1,4- cyclohexadienylidenes；
The liquid-crystal composition is also comprising compound shown in one or more formulas VIII -1, formula VIII -2 and/or formula VIII -3：
Wherein,1,4- cyclohexylidenes, 1,4- cyclohexylidenes are represented independently of one another
One or both of disjunct CH2In the 1,4- phenylenes for being replaced formed group, 1,4- phenylenes and/or fluoro by O
One or more；
Z1、Z2、Z3Singly-bound ,-CF are represented independently of one another2O- or-CH2O-；
M, k, g represent 1,2 or 3 independently of one another；
I represents 0,1 or 2；
R11Represent that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that F, carbon number are 1-10 is 1-10 are 1-10
Alkoxy, fluorine substitution carbon number be 1-10 alkoxy, carbon number be 2-10 alkenyl, fluorine substitution carbon atom
The alkenyloxy that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that number is 2-10 is 3-8；
R12Represent the alcoxyl that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-5 is 1-5 are 1-5
Base, fluorine substitution carbon number be 1-5 alkoxy, carbon number be 2-5 alkenyl, fluorine substitution carbon number be 2-5
Alkenyl, carbon number be 3-5 alkenyloxy or fluorine substitution carbon number be 3-5 alkenyloxy.
2. liquid-crystal composition according to claim 1, it is characterised in that compound shown in one or more formulas I is
One or more compounds in compound shown in the 1- I 4 of formula I, compound shown in one or more formulas II includes II 1- II
One or more compounds in compound shown in 10：
Wherein, R1Alkyl, carbon that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10 are represented independently of one another
Alkenyl that alkoxy that alkoxy that atomicity is 1-10, the carbon number of fluorine substitution are 1-10, carbon number are 2-10, fluorine
The carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that substituted carbon number is 2-10 is 3-8's
Alkenyloxy.
3. liquid-crystal composition according to claim 1 or 2, it is characterised in that the liquid-crystal composition also comprising a kind of or
Compound shown in a variety of formulas IV：
Wherein, R5Represent that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10 are 1-
Alkoxy that 10 alkoxy, the carbon number of fluorine substitution are 1-10, the alkenyl that carbon number is 2-10, fluorine substitution carbon it is former
The alkenyloxy that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that subnumber is 2-10 is 3-8；
N represents 0 or 1；
(F) H or F is represented.
4. liquid-crystal composition according to claim 1 or 2, it is characterised in that the liquid-crystal composition also comprising a kind of or
Compound shown in a variety of formulas V：
Wherein, R6、R7Independently of one another represent carbon number be 1-10 alkyl, fluorine substitution carbon number be 1-10 alkyl,
Alkenyl that alkoxy that alkoxy that carbon number is 1-10, the carbon number of fluorine substitution are 1-10, carbon number are 2-10,
The carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that the carbon number of fluorine substitution is 2-10 is 3-8
Alkenyloxy；
Y1、Y2H or F is represented independently of one another, but asynchronously represents F；
Represent 1,4- phenylenes, 1,4- cyclohexylidenes or 1,4- cyclohexadienylidenes.
5. liquid-crystal composition according to claim 1 or 2, it is characterised in that the liquid-crystal composition also comprising a kind of or
Compound shown in a variety of formulas VI：
Wherein, R8Represent that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10 are 1-
Alkoxy that 10 alkoxy, the carbon number of fluorine substitution are 1-10, the alkenyl that carbon number is 2-10, fluorine substitution carbon it is former
The alkenyloxy that the carbon number of alkenyl, the alkenyloxy that carbon number is 3-8 or fluorine substitution that subnumber is 2-10 is 3-8；
Represent that 1,4- phenylenes, fluoro 1,4- phenylenes, 1,4- cyclohexylidenes or 1,4- are sub- independently of one another
Cyclohexenyl group；
R9Represent that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that F, carbon number are 1-10 is 1-10 are 1-10's
Alkoxy, fluorine substitution carbon number be 1-10 alkoxy, carbon number be 2-10 alkenyl, fluorine substitution carbon number
The alkenyloxy that the carbon number of the alkenyloxy or fluorine that are 3-8 for 2-10 alkenyl, carbon number substitution is 3-8.
6. liquid-crystal composition according to claim 1 or 2, it is characterised in that the liquid-crystal composition also comprising a kind of or
Compound shown in a variety of formulas VII：
R10Represent that alkyl, carbon number that the carbon number for alkyl, the fluorine substitution that carbon number is 1-10 is 1-10 are 1-10's
Alkoxy, fluorine substitution carbon number be 1-10 alkoxy, carbon number be 2-10 alkenyl, fluorine substitution carbon number
The alkenyloxy that the carbon number of the alkenyloxy or fluorine that are 3-8 for 2-10 alkenyl, carbon number substitution is 3-8；
Represent 1,4- phenylenes, the 1,4- phenylenes of fluoro, 1,4- cyclohexylidenes, 1,4- cyclohexadienylidenes and/or 1,4-
One or disjunct two CH in cyclohexylidene2It is substituted with an oxygen the one or more in formed group；
P represents 2 or 3.
7. a kind of liquid crystal display cells or liquid crystal display for including any liquid-crystal composition in claim 1-6, it is special
Levy and be, the display element or display are active matrix display element or display or passive matrix display element or display
Device.
8. liquid crystal display cells according to claim 7 or liquid crystal display, it is characterised in that the Active Matrix LCD At
Element or display are TN-TFT or IPS-TFT liquid crystal display cells or display.
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| CN102660297A (en) * | 2012-04-12 | 2012-09-12 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and its display device |
| CN102994100A (en) * | 2012-10-11 | 2013-03-27 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and liquid crystal display device containing liquid crystal composition |
| CN103351874A (en) * | 2013-06-25 | 2013-10-16 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and display device thereof |
| JP2014026270A (en) * | 2012-06-19 | 2014-02-06 | Dic Corp | Liquid crystal display device |
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| CN102660297A (en) * | 2012-04-12 | 2012-09-12 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and its display device |
| JP2014026270A (en) * | 2012-06-19 | 2014-02-06 | Dic Corp | Liquid crystal display device |
| CN102994100A (en) * | 2012-10-11 | 2013-03-27 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and liquid crystal display device containing liquid crystal composition |
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