CN107557021A - Liquid-crystal composition - Google Patents

Liquid-crystal composition Download PDF

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Publication number
CN107557021A
CN107557021A CN201610499362.9A CN201610499362A CN107557021A CN 107557021 A CN107557021 A CN 107557021A CN 201610499362 A CN201610499362 A CN 201610499362A CN 107557021 A CN107557021 A CN 107557021A
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China
Prior art keywords
carbon number
liquid
group
crystal composition
chained alkyl
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Chinese (zh)
Inventor
徐凯
乔云霞
员国良
李锐
刘露露
刘欢
王跃华
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Shijiazhuang Chengzhi Yonghua Display Material Co Ltd
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Shijiazhuang Chengzhi Yonghua Display Material Co Ltd
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Priority to CN201610499362.9A priority Critical patent/CN107557021A/en
Priority to TW106121964A priority patent/TW201816096A/en
Publication of CN107557021A publication Critical patent/CN107557021A/en
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Abstract

The invention discloses a kind of liquid-crystal composition, the liquid-crystal composition includes compound shown in one or more Formulas I, compound shown in one or more Formula II and compound shown in one or more formula IIIs

Description

Liquid-crystal composition
Technical field
The present invention relates to liquid crystal material field, and in particular to a kind of liquid-crystal composition.
Background technology
Liquid crystal display cells are divided into following modes according to display mode：Twisted nematic (TN) pattern, super-twist nematic (STN) pattern, plane modes (IPS), vertical orientation (VA) pattern.No matter which kind of display pattern be required to liquid-crystal composition have with Lower characteristic.
(1) chemical, physical property is stable.
(2) viscosity is low.
(3) there is suitable △ ε.
(4) suitable index of refraction △ n.
(5) it is good with the intermiscibility of other liquid-crystal compounds
With the maturation of the early 1990s TFT technology, color liquid crystal flat-panel display develops rapidly, less than 10 years when Between, TFT-LCD shoots up as main flow display, and this this have the advantage that inseparable with it.Its advantage is broadly divided at 5 points：
First, it is good using characteristic.Low pressure applications, low driving voltage；Panelized, but it is frivolous, save a large amount of raw material and make Use space；Low-power consumption；Display quality is from simplest monochromatic character graphics to high-resolution, high color fidelity, high brightness, high Contrast, the video display of all size model of high response speed；Its display mode has direct viewing type, projection type, perspective formula Multiple display modes are waited with reflective.
2nd, environmental protection characteristic is good.TFT-LCD is radiationless, flicker free, to the healthy harmless of user, particularly TFT-LCD e-book The appearance of periodical, the mankind will be brought into paperless office, print the epoch without paper, and triggered mankind's study, propagate and remember the revolution for planting civilized mode.
3rd, the scope of application is wide：Within the temperature range of from -20 DEG C to 50 DEG C can normal use, at excess temperature reinforcing The TFT-LCD low-temperature working temperature of reason can reach subzero 80 DEG C.It can not only be used for mobile terminal to show, terminal console is shown, again may be used It is the full-size video display terminal of function admirable to make large-curtain projecting TV set.
4th, the automaticity of manufacturing technology is high.
5th, being easily integrated of TFT-LCD and update.
The main feature of liquid crystal flat panel display from the above mentioned, therefore to the liquid crystal material product used in liquid crystal flat panel display Matter characteristic it is also proposed higher requirement, and liquid-crystal composition should have high electric charge conservation rate, high resistivity, low ion dense in itself Degree, low-power consumption, low rotary viscosity.
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 it is used as thin-film transistor technologies (TFT-LCD) to use 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.
For thin-film transistor technologies (TFT-LCD) application field, although market is very huge in recent years, technology Gradually ripe, simultaneously, due to the continuous progress of liquid crystal material technology, requirement of the people to Display Technique is also constantly carrying Height, quick response especially is being realized, reducing driving voltage to reduce power consumption etc..
One of liquid crystal material photoelectron material important as liquid crystal display, the performance for improving liquid crystal display is played Important effect.Many displays need higher resolution ratio to meet people for high-resolution requirement at present, based on this, face Plate producer constantly improves the electrode design of oneself, to increasing opening rate, it is done so that, electric-field intensity can be caused weak, shown Show that contrast is not high, liquid crystal anchoring ability is poor, and the lifting of image retention risk, in order to reduce the frequency that panel producer improves to electrode Rate, while in order to meet the needs of high-penetration rate, present invention uses a kind of high dielectric monomer of mixed structure, such a monomer Feature is that molecule optical axis and long axis direction have certain angle, it is possible to achieve quick accordingly to be provided in light transmission part simultaneously More effectively delays two, lift the transmitance of general panels, while lift corresponding contrast, allow panel producer without becoming In the case of more any working condition, improve transmitance, accelerate the corresponding time, lift panel quality.
The content of the invention
The technical problem to be solved in the invention is to provide a kind of positive dielectricity liquid-crystal composition, passes through the monomer group of characteristic Close, reach the lifting of transmitance and improve contrast, accelerate the response time, while it is horizontal to improve overall reliability.
In order to solve the above technical problems, the invention provides a kind of liquid-crystal composition, it is characterised in that：The liquid crystal group Compound includes compound shown in one or more Formulas I, compound shown in one or more Formula II and one or more formula IIIs institute Show compound
Wherein
R1、R2、R3、R4Represent independently of one another it is following 1., 2., 3. any group in shown group,
①H、Cl、F、CN、OCN、SCN、NCS、SF5,
2. the straight chained alkyl that the carbon number of the straight chained alkyl that carbon number is 1~10, fluorine substitution is 1~10, chlorine substitution Carbon number be 1~10 straight chained alkyl, carbon number be 1~10 unbranched alkoxy, the carbon number of fluorine substitution be 1~ The unbranched alkoxy that 10 unbranched alkoxy, the carbon number of chlorine substitution are 1~10,
3. at least one-CH in described 2. shown group2- by-CH=CH- ,-C ≡ C- ,-COO- ,-OOC- ,-O- or carbon Group obtained by any group substitution in the cycloalkyl that atomicity is 3~6；
RingRepresent independently of one another And/orOne or both of group；
X1、X2H or F is represented independently of one another；
Y1Represent it is following 4., 5., 6. any group in shown group,
④H、F、Cl；
5. the unbranched alkoxy that the straight chained alkyl that carbon number is 1~6, carbon number are 1~6, carbon number are 2~6 Straight chain alkenyloxy group；
6. by it is above-mentioned 5. in any one or more H by F substitute obtained by group；
N, m, e represent 1 or 2 independently of one another；
(F) H or F is represented；
Z represents singly-bound ,-CH2-CH2-、-(CH2)4- ,-CH=CH- ,-C ≡ C- ,-COO- ,-OOC- ,-CF2O-、- OCH2-、-CH2O-、-OCF2-、-CF2CH2-、-CH2CF2-、-C2F4- or-CF=CF-.
In the liquid-crystal composition, the gross weight percentage composition of compound shown in one or more Formulas I is preferably 1~ 40%, the gross weight percentage composition of compound is preferably 1~70% shown in one or more Formula II, the one or more The gross weight percentage composition of compound shown in formula III is preferably 1~50%.
The optical activity component, antioxygen that weight percentage is 0.001~0.5% can also be added in the liquid-crystal composition Agent or UV stabilizer.
Compound shown in one or more Formulas I be preferably one kind in following formula I-1 to compound shown in Formulas I -4 or It is a variety of,
Wherein
R1Represent independently of one another it is following 1., 2., 3. any group in shown group,
①H、Cl、F、CN、OCN、SCN、NCS、SF5,
2. the straight chained alkyl that the carbon number of the straight chained alkyl that carbon number is 1~10, fluorine substitution is 1~10, chlorine substitution Carbon number be 1~10 straight chained alkyl, carbon number be 1~10 unbranched alkoxy, the carbon number of fluorine substitution be 1~ The unbranched alkoxy that 10 unbranched alkoxy, the carbon number of chlorine substitution are 1~10,
3. at least one-CH in described 2. shown group2- by-CH=CH- ,-C ≡ C- ,-COO- ,-OOC- ,-O- or carbon Group obtained by any group substitution in the cycloalkyl that atomicity is 3~6；
(F) H or F is represented independently of one another；
N represents 0,1 or 2 independently of one another.
Compound shown in one or more Formulas I is more preferably the one or more in following shown compound,
Wherein,
R1Represent independently of one another it is following 1., 2., 3. any group in shown group,
①H、Cl、F、CN、OCN、SCN、NCS、SF5；
2. the straight chained alkyl that the carbon number of the straight chained alkyl that carbon number is 1~10, fluorine substitution is 1~10, chlorine substitution Carbon number be 1~10 straight chained alkyl, carbon number be 1~10 unbranched alkoxy, the carbon number of fluorine substitution be 1~ The unbranched alkoxy that 10 unbranched alkoxy, the carbon number of chlorine substitution are 1~10；
3. at least one-CH in described 2. shown group2- by-CH=CH- ,-C ≡ C- ,-COO- ,-OOC- ,-O- or carbon Group obtained by any group substitution in the cycloalkyl that atomicity is 3~6.
Compound shown in one or more formulas II is preferably in the compound shown in following formula II -1 to formula II -13 One or more,
Wherein
R2、R3The straight chain alkane that straight chained alkyl, carbon number that H, carbon number are 1~10 are 1~10 is represented independently of one another The straight-chain alkenyl or carbon atom that epoxide, carbon atom are 2~10 are 3~8 straight chain alkenyloxy groups, and any H therein can be substituted by F；
(F) H or F is represented independently of one another.
Compound shown in one or more formulas II is more preferably lower for shown in-the a-1 of the formula II to-i-3 of formula II One or more in compound,
Compound shown in one or more formulas III is preferably in the compound shown in following formula III -1 to formula III -29 One or more,
Wherein
R4The unbranched alkoxy that straight chained alkyl, carbon number that carbon number is 1~10 are 1~10 is represented independently of one another Or the straight-chain alkenyl that carbon number is 2~10；
Y1The unbranched alkoxy that straight chained alkyl, carbon number that F, carbon number are 1~6 are 1~6 is represented independently of one another Or the straight-chain alkenyl that carbon number is 2~6, wherein any one or more H can be substituted by F；
(F) H or F is represented independently of one another.
Compound shown in one or more formulas III is more preferably one kind or more in following shown compound Kind,
Wherein,
R4The unbranched alkoxy or carbon number that the straight chained alkyl for being 1~10 selected from carbon number, carbon number are 1~10 For any one in 2~10 straight-chain alkenyl.
Liquid-crystal composition provided by the present invention can apply in liquid crystal display cells or liquid crystal display.
By adopting the above-described technical solution, the technological progress that the present invention obtains is：
Liquid-crystal composition provided by the present invention has positive dielectricity, has the transmitance of superelevation, high electric charge conservation rate, low Power consumption, low rotary viscosity, the characteristics of response time is fast, suitable for active matrix electrooptic element and liquid crystal display, and especially It is the display of twisted-nematic (TN), in-plane switching (IPS) or fringing field switching (FFS) type.
Positive dielectricity liquid-crystal composition excellent performance provided by the invention, can meet for the high-resolution demand of panel, With antioxidative stabilizer, uvioresistant stability and anti-high and low-temp stability.Also there is low-down overall response time, have Relatively low voltage, high resistivity and voltage retention.By the adjustment to each constituent content, nematic phase of the present invention Type liquid-crystal composition can have different threshold voltages and birefringent characteristic, can make the conventionally used each system of client, It is easy to use under different liquid crystal cells thickness and different driving voltage.And liquid crystal compound remains to show high resistance after high temperature Rate, this liquid crystal compound show excellent have excellent high temperature and UV stable performance.Meanwhile liquid crystal mixes in the present invention Thing also shows low viscosity, fast-response time, appropriate optical anisotropy and appropriate dielectric anisotropy, therefore should can have There is the Electro-Optical Display of active array addressing.
The positive dielectricity liquid-crystal composition of the present invention, can be used for Active Matrix Display, preferably passes through thin film transistor (TFT) (TFT) matrix addressing, especially suitable for manufacture quick response active matrix TN-TFT, IPS-TFT liquid crystal display cells and Liquid crystal display, fall within protection scope of the present invention.
Embodiment
The liquid-crystal composition of the present invention can use conventional method to mix two or more liquid-crystal compounds and be produced, such as Different component is mixed at high temperature and prepared by method soluble in one another, wherein, liquid-crystal composition is dissolved in for the compound Solvent in and mix, then distill out the solvent under reduced pressure；Or the liquid-crystal composition of the present invention can be according to the system of routine It is prepared by Preparation Method.
The specific meaning and test condition of symbol are as follows in the present invention：
%：Weight percentage；
℃：Temperature unit, degree Celsius；
Cp：Represent the clearing point (DEG C) of liquid crystal.
S-N：Represent the crystalline state of liquid crystal to nematic fusing point (DEG C).
△n：For optical anisotropy, no is the refractive index of ordinary light, and ne is the refractive index of extraordinary ray, test condition For, 589nm, 25 DEG C.
△ε：For dielectric anisotropy, △ ε=ε ∥-ε ⊥, wherein, ε ∥ are the dielectric constant parallel to molecular axis, ε ⊥ For perpendicular to the dielectric constant of molecular axis, test condition is 25 DEG C；1KHz；HP4284A；5.2 microns of left-handed boxes of TN.
τ：Response time [ms], tester be DMS-501, test condition is 25 ± 0.5 DEG C, 5.2 microns of testing cassete The left-handed boxes of TN.
V10 is the optical threshold voltage [v] of liquid crystal, and V90 is the saturation voltage value [v] of liquid crystal, and test condition is 5.2 microns The left-handed boxes of TN, 25 DEG C.
γ1：Rotary viscosity [mPas], test condition are 25 ± 0.5 DEG C.
With reference to specific embodiment, the present invention is further elaborated, but the following examples are the example of the present invention, The present invention is not limited to following examples.In the case of without departing from present subject matter or scope, pass through the liquid crystal in the present invention It can also be changed or improve out special with different threshold values, clearing point, birefringence by the adjustment to each component content in composition The liquid crystal compound of property, this it will be apparent to those skilled in the art that.Methods described is conventional side unless otherwise instructed Method.The material can obtain from open commercial sources unless otherwise instructed.
It used each composition below in an example, can be synthesized, or be passed through by known method Commercial sources obtain.These synthetic technologys are that conventional, resulting each liquid-crystal compounds meets electrical type compound after tested Standard.
According to the proportioning of each liquid-crystal composition as defined in following examples, liquid-crystal composition is prepared.The liquid-crystal composition Preparation be to be carried out according to the conventional method of this area, such as take heating, ultrasonic wave, the mode such as suspend is mixed according to regulation ratio Close and be made.
Take following weight percentage liquid-crystal compounds configure liquid-crystal composition, prepare and study in the following example to The liquid-crystal composition gone out.The composition and its performance parameter test result of each liquid-crystal composition is shown below.
The present patent application embodiment liquid crystal monomer structure represents with code, liquid crystal ring structure, end group, the code of linking group Method for expressing see the table below (one), table (two)
Table (one)：The corresponding code of ring structure
Table (two)：End group and the corresponding code for linking group
Citing：
C(5)CCV1
3B B(3F)B(3F,5F)CF2O B(3F,4F,5F)
Embodiment 1
The liquid crystal combination composition formula and its test performance parameter of the embodiment 1 of table 1
Embodiment 2
The liquid-crystal composition of the present invention is configured to by each compound and percetage by weight listed in table 2, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula and its test performance parameter of the embodiment 2 of table 2
Embodiment 3
The liquid-crystal composition of the present invention is configured to by each compound and percetage by weight listed in table 3, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula and its test performance parameter of the embodiment 3 of table 3
Embodiment 4
The liquid-crystal composition of the present invention is configured to by each compound and percetage by weight listed in table 4, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula and its test performance parameter of the embodiment 4 of table 4
Embodiment 5
The liquid-crystal composition of the present invention is configured to by each compound and percetage by weight listed in table 5, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula and its test performance parameter of the embodiment 5 of table 5
Embodiment 6
The liquid-crystal composition of the present invention is configured to by each compound and percetage by weight listed in table 6, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula and its test performance parameter of the embodiment 6 of table 6
Embodiment 7
The liquid-crystal composition of the present invention is configured to by each compound and percetage by weight listed in table 7, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula and its test performance parameter of the embodiment 7 of table 7
Embodiment 8
The liquid-crystal composition of the present invention is configured to by each compound and percetage by weight listed in table 8, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula and its test performance parameter of the embodiment 8 of table 8
The liquid-crystal composition of the present invention is configured to by each compound and percetage by weight listed in table 9, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula and its test performance parameter of the embodiment 9 of table 9
The liquid-crystal composition of the present invention is configured to by each compound and percetage by weight listed in table 10, it is filled in liquid Performance test is carried out between crystal display two substrates, test data is as shown in the table：
The liquid crystal combination composition formula and its test performance parameter of the embodiment 10 of table 10
Comparative example 1 (D1)
Monomer structure Content
3BB(3F,5F)CF2OB(3F,4F,5F) 12%
3BB(3F,5F)CF2OBOCF3 6%
3CB(4F) 24%
3CB(3F,4F) 10%
2CCB(3F,4F,5F) 16%
5CCB(3F,4F,5F) 17%
3BBB(3F)B(3F,4F,5F) 7%
3CBBB(3F)B(3F,4F,5F) 5%
3C[3O,5O]BB(3F,5F)B(3F,4F,5F) 3%
Comparative example 2 (D2)
Monomer structure Content
3BB(3F,5F)CF2OB(3F,4F,5F) 11%
3BB(3F,5F)CF2OBOCF3 6%
3CB(4F) 20%
3CB(3F,4F) 9%
2CCB(3F,4F,5F) 15%
5CCB(3F,4F,5F) 12%
3BBB(3F)B(3F,4F,5F) 6%
3C[3O,5O]BBB(3F,4F,5F) 10%
3C[3O,5O]BB(3F)B(3F,4F,5F) 11
Comparative example 3 (D3)
Monomer structure Content
3BB(3F,5F)CF2OB(3F,4F,5F) 10%
3CB(4F) 21%
4BB(3F,4F) 11%
2CCB(3F,4F) 13%
5CCB(4F) 11%
2CCB(3F,4F,5F) 13%
5CCB(3F,4F,5F) 13%
3C[3O,5O]BBB(3F,4F,5F) 4%
3C[3O,5O]BBB(3F,4OCF3,5F) 4%
Comparative example 4 (D4)
Monomer structure Content
3BB(3F,5F)CF2OB(3F,4F,5F) 10%
3CB(4F) 20%
4BB(3F,4F) 10%
2CCB(3F,4F) 10%
5CCB(4F) 10%
2CCB(3F,4F,5F) 12%
4CCB(3F,4F,5F) 12%
3CBB(3F)B(3F,4F,5F) 8%
3CBB(3F,5F)BOCF3 8%
Embodiment 1-10 and comparative example 1-4 fundamental performance parameter test result
Embodiment 1-2 and comparative example 1-4 trust performance parameter test result
Embodiment 3-10 trust performance parameter test result
Note：
Response time (4.5V, ms)
Low temperature storage (my god)
Transmitance (%)
Ultraviolet 5000mJ (50mw/cm2)
100 DEG C of 1h of high temperature
As can be seen that the mixture of this patent meaning is compared has transmitance with comparative example 1~4 from embodiment 1~10 It is obviously improved, while low temperature reliability is good, the response time, resistance to light and heat energy power significantly carries while rotary viscosity substantially reduces Rise.
From embodiment 1~10, this Nematic phase liquid crystal composition can maintain the fast response time in low-temperature region, can The temperature in use of TN, IPS liquid crystal mode is widened, and there is faster response time and wider angular field of view, and right There is outstanding advantage in terms of than degree and reliability
Although the present invention only lists the specific material and proportioning mass percent of above-mentioned 10 embodiments, and to composition The performance of liquid-crystal composition be tested, but the liquid-crystal composition of the present invention can on the basis of above-described embodiment, Utilize formula I, II involved in the present invention, III, representative compound and formula I, II, III preferable compound Further expand and change, can reach the purpose of the present invention.

Claims (8)

  1. A kind of 1. liquid-crystal composition, it is characterised in that：The liquid-crystal composition includes compound, one shown in one or more Formulas I Compound shown in compound shown in kind or a variety of Formula II and one or more formula IIIs
    Wherein
    R1、R2、R3、R4Represent independently of one another it is following 1., 2., 3. any group in shown group,
    ①H、Cl、F、CN、OCN、SCN、NCS、SF5；
    2. the straight chained alkyl that the carbon number of the straight chained alkyl that carbon number is 1~10, fluorine substitution is 1~10, the carbon of chlorine substitution Unbranched alkoxy that straight chained alkyl that atomicity is 1~10, carbon number are 1~10, the carbon number of fluorine substitution are 1~10 The unbranched alkoxy that unbranched alkoxy, the carbon number of chlorine substitution are 1~10；
    3. at least one-CH in described 2. shown group2- by-CH=CH- ,-C ≡ C- ,-COO- ,-OOC- ,-O- or carbon number For group obtained by any group substitution in 3~6 cycloalkyl；
    RingRepresent independently of one another One or both of group；
    X1、X2H or F is represented independently of one another；
    Y1Represent it is following 4., 5., 6. any group in shown group,
    ④H、F、Cl；
    5. the unbranched alkoxy that the straight chained alkyl that carbon number is 1~6, carbon number are 1~6, carbon number be 2~6 it is straight Alkenyloxy；
    6. by it is above-mentioned 5. in any one or more H by F substitute obtained by group；
    N, m, e represent 1 or 2 independently of one another；
    (F) H or F is represented；
    Z represents singly-bound ,-CH2-CH2-、-(CH2)4- ,-CH=CH- ,-C ≡ C- ,-COO- ,-OOC- ,-CF2O-、-OCH2-、- CH2O-、-OCF2-、-CF2CH2-、-CH2CF2-、-C2F4- or-CF=CF-.
  2. 2. liquid-crystal composition according to claim 1, it is characterised in that：It is described a kind of or more in the liquid-crystal composition The gross weight percentage composition of compound is 1~40% shown in kind Formulas I, the gross weight of compound shown in one or more Formula II Percentage composition is 1~70%, and the gross weight percentage composition of compound shown in one or more formula IIIs is 1~50%.
  3. 3. liquid-crystal composition according to claim 1, it is characterised in that：Weight percent is also added in the liquid-crystal composition Content is 0.001~0.5% optical activity component, antioxidant or UV stabilizer.
  4. 4. according to any liquid-crystal composition in claim 1-3, it is characterised in that：One or more Formulas I shownization Compound is the one or more in following formula I-1 to compound shown in Formulas I -4,
    Wherein
    R1Represent independently of one another it is following 1., 2., 3. any group in shown group,
    ①H、Cl、F、CN、OCN、SCN、NCS、SF5,
    2. the straight chained alkyl that the carbon number of the straight chained alkyl that carbon number is 1~10, fluorine substitution is 1~10, the carbon of chlorine substitution Unbranched alkoxy that straight chained alkyl that atomicity is 1~10, carbon number are 1~10, the carbon number of fluorine substitution are 1~10 The unbranched alkoxy that unbranched alkoxy, the carbon number of chlorine substitution are 1~10,
    3. at least one-CH in described 2. shown group2- by-CH=CH- ,-C ≡ C- ,-COO- ,-OOC- ,-O- or carbon number For group obtained by any group substitution in 3~6 cycloalkyl；
    (F) H or F is represented independently of one another；
    N represents 0,1 or 2 independently of one another.
  5. 5. liquid-crystal composition according to claim 4, it is characterised in that：Compound shown in one or more Formulas I is One or more in compound shown in following,
    Wherein,
    R1Represent independently of one another it is following 1., 2., 3. any group in shown group,
    ①H、Cl、F、CN、OCN、SCN、NCS、SF5,
    2. the straight chained alkyl that the carbon number of the straight chained alkyl that carbon number is 1~10, fluorine substitution is 1~10, the carbon of chlorine substitution Unbranched alkoxy that straight chained alkyl that atomicity is 1~10, carbon number are 1~10, the carbon number of fluorine substitution are 1~10 The unbranched alkoxy that unbranched alkoxy, the carbon number of chlorine substitution are 1~10,
    3. at least one-CH in described 2. shown group2- by-CH=CH- ,-C ≡ C- ,-COO- ,-OOC- ,-O- or carbon number For group obtained by any group substitution in 3~6 cycloalkyl.
  6. 6. according to any liquid-crystal composition in claim 1-3, it is characterised in that：Shownization of one or more formulas II Compound is the one or more in the compound shown in following formula II -1 to formula II -13,
    Wherein
    R2、R3The straight chain alcoxyl that straight chained alkyl, carbon number that H, carbon number are 1~10 are 1~10 is represented independently of one another The straight-chain alkenyl or carbon atom that base, carbon atom are 2~10 are 3~8 straight chain alkenyloxy groups, and any H therein can be substituted by F；
    (F) H or F is represented independently of one another.
  7. 7. according to any liquid-crystal composition in claim 1-3, it is characterised in that：Shownization of one or more formulas III Compound is the one or more in the compound shown in following formula III -1 to formula III -29,
    Wherein
    R4The unbranched alkoxy or carbon that straight chained alkyl, carbon number that carbon number is 1~10 are 1~10 are represented independently of one another Atomicity is 2~10 straight-chain alkenyl；
    Y1The unbranched alkoxy or carbon that straight chained alkyl, carbon number that F, carbon number are 1~6 are 1~6 are represented independently of one another Atomicity is 2~6 straight-chain alkenyl, wherein any one or more H can be substituted by F；
    (F) H or F is represented independently of one another.
  8. 8. according to application of any liquid-crystal composition in liquid crystal display cells or liquid crystal display in claim 1-7.
CN201610499362.9A 2016-06-30 2016-06-30 Liquid-crystal composition Pending CN107557021A (en)

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Application publication date: 20180109