CN105969403B - Liquid-crystal composition - Google Patents
Liquid-crystal composition Download PDFInfo
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- CN105969403B CN105969403B CN201610310722.6A CN201610310722A CN105969403B CN 105969403 B CN105969403 B CN 105969403B CN 201610310722 A CN201610310722 A CN 201610310722A CN 105969403 B CN105969403 B CN 105969403B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
Abstract
The invention discloses a kind of liquid-crystal compositions, and comprising compound shown in compound and one or more formulas II shown in one or more formulas I, and the liquid-crystal composition includes compound shown in II-B of compound Chinese style shown in one or two kinds of formulas II:Wherein each substituent group provides its definition.The present invention relates to compositions to have low viscosity γ1, moderate dielectric anisotropy Δ ε, moderate optical anisotropy Δ n, the quick response of liquid crystal display may be implemented.
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 technique
Currently, the application range of liquid-crystal compounds is expanded increasingly wider, it can be applied to a plurality of types of displays, electricity
In optical device, sensor etc..Liquid-crystal compounds for above-mentioned display field it is many kinds of, wherein nematic liquid crystal application is most
It is extensive.Nematic liquid crystal has 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 graduallys mature, but requirement of the people to display technology is also in the continuous improvement, is especially realizing quick response, reduce driving electricity
Pressure is to reduce power consumption etc..The liquid crystal material photoelectron material one of important as liquid crystal display, to improvement liquid crystal display
The performance of device plays an important role.
As liquid crystal material it is necessary to have good chemical and thermal stability and to the stabilization of electric field and electromagnetic radiation
Property.And liquid crystal material is used as thin-film transistor technologies (TFT-LCD), it does 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 charge retention rate and low-steam pressure.
For dynamic screen display applications, display picture ghosting and smearing is eliminated, it is desirable that liquid crystal has cracking response speed
Degree, therefore it is required that liquid crystal has lower rotary viscosity γ1；In addition, in order to reduce equipment energy consumption, being wished for portable device
Hope the driving voltage of liquid crystal as low as possible；And the driving voltage requirement for the display of the purposes such as TV, for liquid crystal
It is not so low.
The viscosity of liquid-crystal compounds, especially rotary viscosity γ1Response time after directly affecting liquid crystal power-up, either
Rise time (ton) or fall time (toff), all with the rotary viscosity γ of liquid crystal1It is proportional, rise time (ton) by
In related with liquid crystal cell and driving voltage, can be adjusted by the method for increasing driving voltage with reduction liquid crystal cell box thickness；And
Fall time (toff) unrelated with driving voltage, mainly and the elastic constant of liquid crystal is related with liquid crystal cell box thickness, the decline of box thickness
(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
Fall time (the t of formulaoff) respectively with average elastic constants K, distortion elastic constant, bend elastic constant inversely.
According to liquid crystal continuum theory, a variety of different liquid crystal are in the case where external force (electric field, magnetic field) acts on after deformation occurs, meeting
By intermolecular interaction, " rebound " returns original shape；Likewise, liquid crystal is also due to intermolecular interaction force
It is formed " viscosity ".The minor change of liquid crystal molecule, can make the conventional parameter performance of liquid crystal that apparent variation occur, these variations have
Have certain rule, some seems to be not easy to find rule, the interaction between liquid crystal molecule can also be generated apparent
It influences, these influences are very delicate, so far also without forming very perfect theoretical explanation.
The viscosity of liquid crystal is related with liquid crystal molecule structure, studies the viscosity and liquid of the liquid crystal system that different liquid crystal molecules are formed
Relationship between brilliant molecular structure is one of the vital task of dispensing liquid crystal engineer.
Summary of the invention
A kind of liquid crystal display element the purpose of the present invention is to provide liquid-crystal composition and comprising the liquid-crystal composition or
Liquid crystal display, the liquid-crystal composition have lower viscosity, quick response may be implemented, at the same have moderate dielectric respectively to
Anisotropic 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 charge retention rate and low-steam pressure.
In order to realize above-mentioned advantageous effects, the present invention provides a kind of liquid-crystal composition, and the liquid-crystal composition includes
Compound shown in compound shown in one or more formulas I and one or more formulas II, and the liquid-crystal composition includes one
Compound shown in II-B of compound Chinese style shown in kind or two kinds of formulas II
Wherein, R11、R12Each independently represent the alkyl that carbon atom number is 1-10；
R2、R3Each independently represent alkyl that alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10,
Alkenyl that alkoxy that alkoxy that carbon atom number is 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10,
The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that fluorine-substituted carbon atom number is 2-10, carbon atom number are 3-8 are 3-8
Alkenyloxy, and the R2、R3In any one or more discontinuous CH2It can be by cyclopenta, cyclobutyl, cyclopropyl or O
Substitution；
Y indicates ethyl or vinyl；
Each independently represent 1,4- phenyl, 1,4- cyclohexyl or 1,4- cyclohexenyl group.
Liquid-crystal composition provided by the present invention necessarily includes compound and one or two shown in one or more formulas I
Compound shown in II-B of formula can also include the compound other than II-B of chemical combination Chinese style shown in one or more formulas II.
Liquid-crystal composition of the present invention does not preferably include the liquid-crystal compounds containing-CN, does not include and contain pyridine, pyrimidine
Cycle compound.
The present invention does not contain the liquid-crystal compounds of condensed cyclic structure further preferably.
Liquid-crystal composition Δ n [589nm, 25 DEG C] > 0.08 provided by the present invention, Δ ε [1KHz, 25 DEG C] > 2 or Δ ε
[1KHz, 25 DEG C] ﹤ -2, clearing point Cp > 55.0 DEG C, rotary viscosity γ1[25 DEG C] are between 40~120mPas.
The gross mass content of compound shown in one or more formulas I described in liquid-crystal composition provided by the present invention is preferred
For 2-25%, the preferred 5-85% of gross mass content of compound shown in one or more formulas II, the one or two formula
The gross mass content of compound shown in II-B is preferably 5-55%.
Liquid-crystal composition of the invention does not contain the liquid crystal composition containing-CN structure and contains pyridine, pyrimidine ring chemical combination
Object.- CN has very big permanent dipole moment, and electron cloud is easy to Liquidity limit so as to cause ionic solvation, makes compared with horn of plenty
The decline of liquid crystal electric property, such as charge conservation rate VHR, electricalresistivityρ, power consumption etc.；Pyridine, pyrimidine cycle compound are due at UV
Electronics is susceptible to excite and lead to quality decline.
The difference of various substituent groups, compound shown in one or more formulas I are preferably one in compound shown in I 1- I 5 of formula
Kind or multiple compounds:
Compound shown in formula I generally has and the good intersolubility of other liquid crystal；The optical anisotropy Δ of type I compound
N is totally moderate, generally higher than or close to mixed liquid crystal Δ n；Type I compound has negative dielectric anisotropy Δ ε, is suitable for
Turn down the Δ ε of mixed liquid crystal.
Liquid-crystal composition of the present invention preferably comprise one of compound shown in II-B-2 of compound shown in II-B-1 of formula or formula or
All two kinds of compounds
Liquid-crystal composition provided by the present invention can also include compound shown in one or more II -1 to II -10:
Liquid-crystal composition of the present invention can be positive liquid crystal composition, and the liquid-crystal composition can also be comprising a kind of or more
Compound shown in kind formula III
Wherein, R4Indicate the alkyl, carbon atom number that alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10
For the alkoxy of 1-10, fluorine-substituted carbon atom number be 1-10 alkoxy, carbon atom number be 2-10 alkenyl, fluorine-substituted
The alkene oxygen that the alkenyloxy or fluorine-substituted carbon atom number that alkenyl that carbon atom number is 2-10, carbon atom number are 3-8 are 3-8
Base；And R4In any one CH2It can be substituted by cyclopenta, cyclobutyl, cyclopropyl.
It each independently represents:
One of which or two
Kind；
M indicates 1,2；
Z1、Z2Each independently represent singly-bound ,-CF2O-、-CH2CH2-、-CH2O-；
Y1Indicate the alkoxy, fluorine that alkyl, fluorine-substituted carbon atom number that F, fluorine-substituted carbon atom number are 1-5 are 1-5
The alkenyloxy that alkenyl that substituted carbon atom number is 2-5, fluorine-substituted carbon atom number are 3-8.
Compound shown in one or more formulas III is preferably one of compound shown in III 1- III 21 or a variety of
Wherein, X1Indicate H, X2Indicate F or X1Indicate F, X2Indicate H；
R4Each independently represent the alkane for indicating that alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10
The alkene that alkoxy that alkoxy that base, carbon atom number are 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10
The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that base, fluorine-substituted carbon atom number are 2-10, carbon atom number are 3-8 be
The alkenyloxy of 3-8, and the R4In any one CH2It can be substituted by cyclopenta, cyclobutyl, cyclopropyl；
(F) H or F is each independently represented；
Y1Indicate the alkoxy, fluorine that alkyl, fluorine-substituted carbon atom number that F, fluorine-substituted carbon atom number are 1-5 are 1-5
The alkenyloxy that alkenyl that substituted carbon atom number is 2-5, fluorine-substituted carbon atom number are 3-8.
Alternatively preferably, liquid-crystal composition provided by the present invention can also be negative liquid crystal composition, described
Liquid-crystal composition can also include one or more IV compounds represented of formula
Wherein, R5、R6Each independently representing alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 is 1-10's
The chain that alkoxy that alkoxy that alkyl, carbon atom number are 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10
The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that alkenyl, fluorine-substituted carbon atom number are 2-10, carbon atom number are 3-8
For the alkenyloxy of 3-8, and the R5、R6Any of CH2It can be substituted by cyclopenta, cyclobutyl, cyclopropyl；
Z3、Z4Each independently represent singly-bound ,-CH2CH2Or-CH2O-；
It each independently represents It is one of or two kinds；
M indicates 1 or 2；
N indicates 0,1 or 2.
IV compound represented of one or more formulas is preferably IV 1-, IV 11 compound
Wherein, R5、R6Each independently representing alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 is 1-10's
The chain that alkoxy that alkoxy that alkyl, carbon atom number are 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10
The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that alkenyl, fluorine-substituted carbon atom number are 2-10, carbon atom number are 3-8
For the alkenyloxy of 3-8, and the R5、R6Any of CH2It can be substituted by cyclopenta, cyclobutyl or cyclopropyl.
Liquid-crystal composition provided by the present invention is preferably negative liquid crystal composition, can also include one or more formulas V
Compound represented
Wherein, R7、R8Each independently representing alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 is 1-10's
The chain that alkoxy that alkoxy that alkyl, carbon atom number are 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10
The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that alkenyl, fluorine-substituted carbon atom number are 2-10, carbon atom number are 3-8
For the alkenyloxy of 3-8, and the R7、R8In any one CH2It can be substituted by cyclopenta, cyclobutyl or cyclopropyl.
V compound represented of formula is preferred are as follows:
R81Indicate that carbon atom number is the alkoxy of 1-10.
The different proportion of each ingredient of liquid-crystal composition can show slightly discrepant performance, such as dielectric anisotropy Δ
ε, optical anisotropy Δ n, liquid crystal nematic phase be converted into transition temperature point CP, the low temperature stability inferior of liquid all can be poor
It is different, it can be applied to different types of display device, but identical feature is its rotary viscosity γ1It is lower.Applied to liquid crystal
Quick response may be implemented in display device.
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, ultraviolet absorbing agent, chiral agent.Antioxidant, ultraviolet radiation absorption
Agent is preferred:
The integer of S expression 1-10.
Chiral agent is preferred (left or right rotation):
The invention further relates to liquid crystal display elements or liquid crystal display comprising any one of the above liquid-crystal composition；It is described
Display element or display are active matrix display element or display or passive matrix display element or display.
The liquid crystal display element or the preferred active array addressing liquid crystal display element of liquid crystal display or liquid crystal display.
The active matrix display element or display are specially TN-TFT or IPS-TFT or VA-TFT liquid crystal display element
Or display.
Liquid-crystal composition provided by the present invention has lower viscosity, quick response may be implemented, while having moderate
Dielectric anisotropy Δ ε, moderate optical anisotropy Δ n, the high stability to light and heat.
Liquid crystal material comprising liquid-crystal composition provided by the present invention, not only have good chemical and thermal stability with
And the stability to electric field and 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 charge retention rate and low-steam pressure.
Specific embodiment
The present invention is further elaborated combined with specific embodiments below, but the present invention is not limited to following embodiments.Institute
State method is conventional method unless otherwise instructed.The raw material can be gotten from open business unless otherwise instructed.Institute
It states percentage unless otherwise instructed, is mass percent.
In following embodiments,
CP indicates clearing point, is directly measured using the micro- thermal analyzer of WRX-1S, sets heating rate as 3 DEG C/min.
Δ n indicates optical anisotropy (589nm, 20 DEG C),
Δ ε indicates dielectric anisotropy (25 DEG C, 1KHz, HP4284A, the 5.2 microns left-handed boxes of TN),
γ1Indicate that rotary viscosity (mpas) at 20 DEG C, VHR (%) are represented charge conservation rate (5V, 60Hz, 20 DEG C), ρ (×
1013 Ω cm) represent resistivity (20 DEG C)
The tester of voltage retention VHR (%) 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)
The present patent application embodiment liquid crystal monomer structure indicates with code, liquid crystal ring structure, end group, linking group code
Representation method see the table below (one), table (two)
Table (one): the correspondence code of ring structure
Table (two): the corresponding code of end group and the link group
Citing:
C(5)CCV1
3B B(3F)B(3F,5F)Q B(3F,5F)F
Embodiment 1
Comparative example 1
General formula I 2OBB (2F, 3F) O2 of embodiment 1 is changed to common 2BB (2F, 3F) O2, obtains comparative example liquid crystal combination
Object, by parameter comparison it can be seen that comparative example Δ ε declines, Cp, Δ n decline, γ1Rise.Obvious, liquid crystal group of the present invention
It closes object compared with prior art, there is broader nematic temperature range, the advantage of faster response speed.
Embodiment 2
Embodiment 3
Embodiment 4
Embodiment 5
Embodiment 6
As can be seen from the above embodiments: liquid-crystal composition of the invention has lower rotary viscosity γ 1, is used for liquid crystal
It has been shown that, may be implemented quick response.It is particularly suitable for TN, IPS mode liquid crystal material.
Claims (9)
1. a kind of liquid-crystal composition, which is characterized in that the liquid-crystal composition include one or more formulas I shown in compound and
Compound shown in one or more formulas II, and the liquid-crystal composition includes in compound shown in one or two kinds of formulas II
Compound shown in II-B of formula
Wherein, R11、R12Each independently represent the alkyl that carbon atom number is 1-5；
R2、R3It is former to each independently represent alkyl, carbon that alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10
Alkenyl that alkoxy that alkoxy that subnumber is 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10, fluorine take
The chain that the alkenyloxy or fluorine-substituted carbon atom number that alkenyl that the carbon atom number in generation is 2-10, carbon atom number are 3-8 are 3-8
Alkenyloxy group, and the R2、R3In any one or more discontinuous CH2It can be replaced by cyclopenta, cyclobutyl, cyclopropyl or O
Generation；
Y indicates ethyl or vinyl；
Each independently represent 1,4- phenyl, 1,4- cyclohexyl or 1,4- cyclohexenyl group；
The liquid-crystal composition is negativity liquid-crystal composition, and the liquid-crystal composition also includes change shown in one or more formulas IV
Close object
Wherein, R5、R6Each independently represent alkyl that alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10,
Alkenyl that alkoxy that alkoxy that carbon atom number is 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10,
The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that fluorine-substituted carbon atom number is 2-10, carbon atom number are 3-8 are 3-8
Alkenyloxy, and the R5In any one CH2It is substituted by cyclopenta, R6In any one CH2It can be by cyclopenta, ring fourth
Base, cyclopropyl substitution；
Z3、Z4Each independently represent singly-bound ,-CH2CH2Or-CH2O-；
It each independently represents It is one of or two kinds；
M indicates 1 or 2；
N indicates 0,1 or 2.
2. liquid-crystal composition according to claim 1, which is characterized in that compound shown in one or more formulas I is
One of compound shown in I 1- I 5 of formula or multiple compounds；Compound shown in one or more formulas II includes II 1- of formula
One of compound or multiple compounds shown in II 10；Compound shown in the one or two formula II-B be II-B-1 of formula,
One or both of compound shown in II-B-2 compound,
3. liquid-crystal composition according to claim 1 or 2, which is characterized in that one kind described in the liquid-crystal composition or
The gross mass content of compound shown in a variety of formulas I is 2-25%, and the gross mass of compound described in one or more formulas II contains
Amount is 5-85%, and the gross mass content of compound shown in II-B of the one or two formula is 5-55%.
4. liquid-crystal composition according to claim 1, which is characterized in that the liquid-crystal composition also includes one or more
Compound shown in formula III
Wherein, R4Indicate the alkyl that alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10, carbon atom number 1-
Alkenyl that alkoxy that 10 alkoxy, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10, fluorine-substituted carbon are former
The alkenyloxy that the alkenyloxy or fluorine-substituted carbon atom number that alkenyl that subnumber is 2-10, carbon atom number are 3-8 are 3-8,
And the R4Any of CH2It can be substituted by cyclopenta, cyclobutyl or cyclopropyl；
It each independently represents:
Middle one or two；
M indicates 1 or 2；
Z1、Z2Each independently represent singly-bound ,-CF2O-、-CH2CH2Or-CH2O-；
Y1Indicate alkoxy that alkyl, fluorine-substituted carbon atom number that F, fluorine-substituted carbon atom number are 1-5 are 1-5, fluorine-substituted
The alkenyloxy that alkenyl that carbon atom number is 2-5, fluorine-substituted carbon atom number are 3-8.
5. liquid-crystal composition according to claim 4, which is characterized in that compound shown in one or more formulas III is
One of compound shown in III 1- III 22 is a variety of
Wherein, X1Indicate H, X2Indicate F or X1Indicate F, X2Indicate H；
R4Each independently representing indicates that alkyl, carbon that alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10 are former
Alkenyl that alkoxy that alkoxy that subnumber is 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10, fluorine take
The chain that the alkenyloxy or fluorine-substituted carbon atom number that alkenyl that the carbon atom number in generation is 2-10, carbon atom number are 3-8 are 3-8
Alkenyloxy group, and the R4In any one CH2It can be substituted by cyclopenta, cyclobutyl, cyclopropyl；
(F) H or F is each independently represented；
Y1Indicate alkoxy that alkyl, fluorine-substituted carbon atom number that F, fluorine-substituted carbon atom number are 1-5 are 1-5, fluorine-substituted
The alkenyloxy that alkenyl that carbon atom number is 2-5, fluorine-substituted carbon atom number are 3-8.
6. liquid-crystal composition according to claim 1, which is characterized in that one or more IV compounds represented of formula
For one of compound shown in IV 1- IV 11 or a variety of
Wherein, R5、R6Each independently represent alkyl that alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10,
Alkenyl that alkoxy that alkoxy that carbon atom number is 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10,
The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that fluorine-substituted carbon atom number is 2-10, carbon atom number are 3-8 are 3-8
Alkenyloxy, and the R5In any one CH2It is substituted by cyclopenta, R6In any one CH2It can be by cyclopenta, ring fourth
Base, cyclopropyl substitution.
7. liquid-crystal composition according to claim 1, which is characterized in that the liquid-crystal composition is negativity liquid crystal combination
Object, the liquid-crystal composition also include one or more V compounds represented of formula
Wherein, R7、R8Each independently represent alkyl that alkyl, fluorine-substituted carbon atom number that carbon atom number is 1-10 are 1-10,
Alkenyl that alkoxy that alkoxy that carbon atom number is 1-10, fluorine-substituted carbon atom number are 1-10, carbon atom number are 2-10,
The alkenyloxy or fluorine-substituted carbon atom number that alkenyl that fluorine-substituted carbon atom number is 2-10, carbon atom number are 3-8 are 3-8
Alkenyloxy, and the R7、R8Any of CH2It can be substituted by cyclopenta, cyclobutyl, cyclopropyl.
8. a kind of liquid crystal display element or liquid crystal display comprising the liquid-crystal composition any in claim 1-7, special
Sign is that the display element or display are active matrix display element or display or passive matrix display element or display
Device.
9. liquid crystal display element according to claim 8 or liquid crystal display, which is characterized in that the Active Matrix LCD At
Element or display are TN-TFT, IPS-TFT or VA-TFT liquid crystal display element or display.
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| TW105117822A TWI596199B (en) | 2016-05-12 | 2016-06-06 | Liquid crystal composition and liquid crystal display device |
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| CN108239539A (en) * | 2016-12-23 | 2018-07-03 | 江苏和成显示科技有限公司 | The liquid-crystal composition and its display device of negative dielectric anisotropic |
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| TWI596199B (en) | 2017-08-21 |
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