CN106883865A - A kind of negative dielectric anisotropy liquid crystal composition containing benzofuran and its application - Google Patents
A kind of negative dielectric anisotropy liquid crystal composition containing benzofuran and its application Download PDFInfo
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- CN106883865A CN106883865A CN201510934911.6A CN201510934911A CN106883865A CN 106883865 A CN106883865 A CN 106883865A CN 201510934911 A CN201510934911 A CN 201510934911A CN 106883865 A CN106883865 A CN 106883865A
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- 0 CC(C)c(ccc(c1c(C)cc2*)c3[o]c1c2F)c3F Chemical compound CC(C)c(ccc(c1c(C)cc2*)c3[o]c1c2F)c3F 0.000 description 1
Abstract
The present invention relates to technical field of liquid crystal display, more particularly to a kind of negative dielectric anisotropy liquid crystal composition containing benzofuran.The nematic phase liquid crystal composition comprises at least the compound representated by a kind of formula I：R1、R2C is represented independently of one another1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be replaced by O, S or CH=CH；And including at least a kind of compounds of formula II：R3、R4C is represented independently of one another1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be replaced by O, S or CH=CH；A1、A2Trans 1,4- cyclohexyl or 1,4- phenylenes are represented independently of one another.Liquid-crystal composition provided by the present invention increases dielectric anisotropy by adding compound I, reduces polar monomer with this and uses, and increases class ii compound and uses, and reaches the purpose for reducing liquid-crystal composition rotary viscosity.
Description
Technical field
The present invention relates to a kind of liquid-crystal composition, specifically a kind of nematic phase liquid crystal composition, exactly, institute of the present invention
The liquid-crystal composition of offer has negative dielectric anisotropy and the faster response time.
Background technology
At present, liquid crystal is widely applied in field of information display, while the application in optical communication is also achieved and certain entered
Exhibition (S.T.Wu, D.K.Yang.Reflective Liquid Crystal Displays.Wiley, 2001).In recent years, LCD compound
The application field of thing significantly widens kinds of displays part, electro-optical device, electronic component, sensor etc., nematic crystal
Compound obtains most commonly used application in flat-panel monitor, particularly in the system of tft active matrix.
Liquid crystal display experienced very long road for development with the discovery of liquid crystal.Austria botanist Friedrich Reinitzer in 1888
It is found that the first liquid crystal material benzoic acid cholesterol (cholesteryl benzoate).Manguin has invented friction within 1917
Directional Method, is used to make single domain liquid crystal and research optical anisotropy.E.Bose establishes moving (Swarm) within 1909
Say, and obtain the experiment of L.S.Ormstein and F.Zernike et al. and support (1918), system is discussed as by De Gennes
Meter property rises and falls.G.W.Oseen and H.Zocher founded continuum theory in 1933, and obtained F.C.Frank perfect (1958
Year).M.Born (1916) and K.Lichtennecker (nineteen twenty-six) have found and have studied the dielectric anisotropy of liquid crystal.
1932, nematic phase was divided into the positive and negative major class of property two by W.Kast accordingly.Nineteen twenty-seven, V.Freedericksz and V.Zolinao send out
Existing nematic liquid crystal deforms upon and exists voltage threshold (Freederichsz transformations) under electric field or magnetic fields.This
The making for being found to be liquid crystal display provides foundation.
Nineteen sixty-eight RCA Corp. of U.S. R.Williams has found that nematic liquid crystal forms striped farmland under electric field action, and has light scattering
Phenomenon.G.H.Heilmeir with will its develop into dynamic scattering display pattern, and be made first liquid crystal display in the world
(LCD).Early seventies, Helfrich and Schadt have invented TN principles, and people utilize TN photoelectric effect and integrated circuit
It is combined, is made display device (TN-LCD), is that wide prospect has been opened up in the application of liquid crystal.Since the seventies,
Due to the development of large scale integrated circuit and liquid crystal material, application of the liquid crystal in terms of display achieves breakthrough development,
1983~1985 years T.Scheffer et al. successively propose super-twist nematic (Super Twisred Nematic：STN) pattern with
And active matrix (the Active matrix that P.Brody was proposed in 1972：AM) mode is used again.Traditional TN-LCD
Technology has developed into STN-LCD and TFT-LCD technologies, although the number of scanning lines of STN up to 768 rows more than, work as temperature
The problems such as response speed, visual angle and gray scale are remained during rising, therefore large area, high information quantity, colored display are mostly
Using Active Matrix LCD At mode.TFT-LCD is widely used for direct viewing type TV, large-curtain projecting TV set, terminal
Display and some military instrument show, it is believed that TFT-LCD technologies have more wide application prospect.Wherein " active matrix "
Including two types：1st, on the silicon wafer as substrate OMS (metal-oxide semiconductor (MOS)) or other diodes.2、
Thin film transistor (TFT) (TFT) on the glass plate as substrate.Monocrystalline silicon limits display size as substrate material, because
There are many problems in its junction in each several part display device even module assembled.Thus, second thin film transistor (TFT) is with preceding
The active matrix type of scape, the photoelectric effect for being utilized typically TN effects.TFT include compound semiconductor, such as Cdse,
Or the TFT based on polycrystalline or amorphous silicon.
At present, LCD product technologies are ripe, successfully solve the technical barriers such as visual angle, resolution ratio, color saturation, its
Display performance is already close to or more than CRT monitor.Large scale and small-medium size LCD gradually occupy flat board in respective field
The dominant position of display.(transmitance is low, absolute transmitance 5% or so) is restricted by liquid crystal display itself, is resulted in the need for
The brightness of backlight module is substantially improved to reach good display effect, the power consumption of backlight module is dramatically increased, it is another
Aspect, (molecule bends the Flexo existed due to positivity FFS display patterns under high voltage, because FFS electric fields have bending
Electric field line, positivity liquid crystal molecule is arranged along electric field line direction) effect, cause liquid crystal display to produce obvious flicker, reduce aobvious
Show device effect.
The content of the invention
The present invention provides a kind of negative dielectric anisotropy liquid crystal composition containing benzofuran, on the one hand lifts liquid crystal display
Transmitance；On the other hand exclude liquid crystal display and there is Flexo (arrangement of negative liquid crystal molecule vertical electric field direction) effect, from
And effectively improve the flicker problem of liquid crystal display；So as to reach good display effect.
Specifically, the present invention provides a kind of negative dielectric anisotropy liquid crystal composition containing benzofuran, and the composition is extremely
Less comprising the compound representated by a kind of formula I：
R1、R2C is represented independently of one another1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be by O, S
Or CH=CH is replaced；
And including at least a kind of compounds of formula II：
R3、R4C is represented independently of one another1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be by O, S
Or CH=CH is replaced；A1、A2Trans 1,4- cyclohexyl or 1,4- phenylenes are represented independently of one another.
The compound representated by formula I that the present invention is provided is dibenzofurans class compound, and the structure has big negative dielectric each
Anisotropy.
Preferably, the compound representated by formula I is selected from one or more of representative compound in following formula：
Wherein, R1、R3Represent C1~C7Straight chained alkyl.
Used as more preferably technical scheme, the compound representated by above-mentioned formula I is selected from one kind of representative compound in following formula
Or it is several：
The compound representated by formula II that the present invention is provided is twin nuclei, it is preferable that the compound representated by the formula II
Selected from one or more of following compound：
Wherein, R3Represent C1~C7Straight chained alkyl；R4Represent C1~C7Straight chained alkyl, unbranched alkoxy or C2~C7Straight chain
Alkenyl.
Used as more preferably technical scheme, the compound representated by formula II is selected from the compound representated by Formula II A1~Formula II C24
One or more：
Compound representated by liquid-crystal composition formula of I provided by the present invention is the compound of dibenzofurans structure, is had
Great negative dielectric anisotropic, can effectively increase the dielectric anisotropy of liquid-crystal composition；Compound representated by formula II
It is two ring structures, such compound has extremely low rotary viscosity, used as the optimal selection of the rotary viscosity for reducing liquid-crystal composition；
Liquid-crystal composition provided by the present invention increases dielectric anisotropy by adding compound I, and reducing polar monomer with this makes
With, increase class ii compound and use, reach the purpose for reducing liquid-crystal composition rotary viscosity.
Preferably, liquid-crystal composition provided by the present invention also includes one or more compound selected from general formula III structure, to have
Help be lifted the elastic constant and clearing point of liquid-crystal composition：
R5、R6C is represented independently of one another1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can by O or
CH=CH replaces.
A3It is each independently selected from following structure：
Preferably, the compound representated by general formula III is selected from one or more in formula III A~formula III C：
Wherein, R5Represent C2~C10Straight chained alkyl or straight-chain alkenyl；R6Represent C1~C8Straight chained alkyl.
It is highly preferred that compound representated by general formula III is selected from one or more in formula III A1~formula III C30 structures：
Further, it is preferable to liquid-crystal composition provided by the present invention is also selected from compounds of formula IV comprising one or more：
Wherein, R7、R8C is represented independently of one another1~C12Straight chained alkyl, alkoxy or C2~C12Straight-chain alkenyl；A4Represent
Isosorbide-5-Nitrae-cyclohexylidene or Isosorbide-5-Nitrae-phenylene；Z1Represent singly-bound, CH2CH2Or CH2O。
Preferably, the compound representated by formula IV is selected from one or more in following compound：
Wherein, R7Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl；R8Represent C1~C7Straight chained alkyl or straight chain alkane
Epoxide.
It is highly preferred that compounds of formula IV is selected from one or more in formula IV A1~formula IV D16；
In order to the liquid-crystal composition that the optical anisotropy present invention for further increasing liquid-crystal composition is provided preferably also includes one kind
Or the compound representated by various formula V：
Wherein, R9、R10C is represented independently of one another1~C12Straight chained alkyl.
Preferably, the compound representated by formula V is selected from one or more in following structure：
And liquid-crystal composition preferably provided by the present invention further comprises the chemical combination representated by one or more formula VI
Thing：
Wherein, R11、R12C is represented independently of one another1~C12Straight chained alkyl, unbranched alkoxy；L1Represent H or F.
Preferably, the compound representated by formula VI is selected from one or more in VIA and VIB：
Wherein, R11、R12C is represented independently of one another1~C7Straight chained alkyl, unbranched alkoxy；It is preferred that C1~C5Straight chained alkyl or
Unbranched alkoxy.
Liquid-crystal composition provided by the present invention is also comprising the compound representated by one or more formula VII：
Wherein R13、R14C is represented independently of one another1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；A5
Selected from following structure：
A6Selected from following structure：
Preferably, the compound representated by formula VII is selected from one or more in following structure：
Wherein, R13Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl, preferably C2~C5Straight chained alkyl or straight-chain alkenyl；
R14Represent C1~C7Straight chained alkyl or unbranched alkoxy, preferably C1~C5Straight chained alkyl or unbranched alkoxy.
More preferably, liquid-crystal composition provided by the present invention is also comprising the compound representated by one or more formula VIII：
Wherein, R15、R16C is represented independently of one another1~C12Straight chained alkyl；L2、L3H or F is represented independently of one another；A7
Represent Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene.
Preferably, the compound representated by formula VIII is selected from one or more of following structure：
Wherein, R15、R16C is represented independently of one another1~C7Straight chained alkyl, preferably C2~C5Straight chained alkyl.
Additionally, liquid-crystal composition provided by the present invention is also comprising the compound representated by one or more formula IX：
Wherein, R17、R18C is represented independently of one another1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl,；
Preferably, R17Represent C2~C7Straight-chain alkenyl or straight chained alkyl, further preferred C2~C5Straight chained alkyl or straight-chain alkenyl；
R18Represent C1~C7Straight chained alkyl or unbranched alkoxy, further preferred C1~C5Straight chained alkyl or unbranched alkoxy.
Above-mentioned liquid-crystal composition, except the compound representated by formula I and formula II be essential component in addition to, other components (such as general formula III~
Compound shown in formula IX) optional component is, optional mode may be selected any combination, such as only be added in essential component
It is a kind of, several or whole in above-mentioned " other components ".
For specific, in order that liquid-crystal composition meets different demands, liquid-crystal composition provided by the present invention is further right
The content range of each component has made preferred restriction in above-mentioned composition.
Liquid-crystal composition of the present invention, by weight, including following components：Compound representated by 1~11 part of formula I,
Compound representated by 20~50 parts of formula II, the compound representated by 0~15 part of general formula III, the change representated by 3~20 parts of formula IV
Compound, the compound representated by 0~30 part of formula V, the compound representated by 0~15 part of formula VI, 5~50 parts of formula VII institute's generations
The compound of table, the compound representated by 0~40 part of formula IX.
Preferably, liquid-crystal composition provided by the present invention includes following components：Compound representated by 2~11 parts of formula I, 27~40
Compound representated by part formula II, the compound representated by 0~10 part of general formula III, the compound representated by 5~16 parts of formula IV,
Compound representated by 0~25 part of formula V, the compound representated by 0~10 part of formula VI, the change representated by 7~48 parts of formula VII
Compound, the compound representated by 0~33 part of formula IX.
Or liquid-crystal composition provided by the present invention includes following components：Compound representated by 12~30 parts of formula I, 20~60 parts
Compound representated by formula II, the compound representated by 0~25 part of general formula III, the compound representated by 0~10 part of formula IV, 0~20
Compound representated by part formula V, the compound representated by 0~60 part of formula VII, the chemical combination representated by 0~10 part of formula VIII
Thing, the compound representated by 0~25 part of formula IX.
Preferably, liquid-crystal composition provided by the present invention includes following components：Compound representated by 12~25 parts of formula I,
Compound representated by 29~53 parts of formula II, the compound representated by 0~21 part of general formula III, the chemical combination representated by 0~2 part of formula IV
Thing, the compound representated by 0~10 part of formula V, the compound representated by 0~54 part of formula VII, representated by 0~8 part of formula VIII
Compound, the compound representated by 0~20 part of formula IX.
Or liquid-crystal composition provided by the present invention includes following components：Compound representated by 3~30 parts of formula I, 20~55 parts lead to
Compound representated by Formula II, the compound representated by 5~25 parts of general formula IIIs, the compound representated by 0~20 part of formula IV, 0~15
Compound representated by part formula V, the compound representated by 0~45 part of formula VII, the chemical combination representated by 0~10 part of formula VIII
Thing, the compound representated by 0~40 part of formula IX.
Preferably, liquid-crystal composition provided by the present invention includes following components：Compound representated by 5~25 parts of formula I, 29~53
Compound representated by part formula II, the compound representated by 6~21 parts of general formula IIIs, the compound representated by 0~16 part of formula IV,
Compound representated by 0~10 part of formula V, the compound representated by 0~40 part of formula VII, the change representated by 0~8 part of formula VIII
Compound, the compound representated by 0~33 part of formula IX.
Or liquid-crystal composition provided by the present invention includes following components：Compound representated by 1~15 part of formula I, 20~40 parts lead to
Compound representated by Formula II, the compound representated by 1~20 part of formula IV, the compound representated by 0~30 part of formula V, 0~15
Compound representated by part formula VI, the compound representated by 25~60 parts of formula VII.
Preferably, liquid-crystal composition provided by the present invention includes following components：Compound representated by 2~14 parts of formula I, 27~36
Compound representated by part formula II, the compound representated by 2~15 parts of formula IV, the compound representated by 0~25 part of formula V,
Compound representated by 0~10 part of formula VI, the compound representated by 29~54 parts of formula VII.
And, more preferably formula is：Compound representated by 2~14 parts of formula I, the chemical combination representated by 27~36 parts of formula II
Thing, the compound representated by 2~14 parts of formula IV, the compound representated by 6~25 parts of formula V, 29~48 parts of formula VII institute's generations
The compound of table.
In above-mentioned amount ranges, can obtain that rotary viscosity is low, the big negative dielectric anisotropy liquid crystal composition of elastic constant,
Possess the fast corresponding time using the liquid crystal display of the liquid crystal.
The preparation method of liquid-crystal composition of the present invention can use conventional method by two or more compounds without specifically limited
Mixing is produced, and is such as prepared by mixing different component at high temperature and method soluble in one another, wherein, by liquid crystal combination
Thing is dissolved in the solvent for the compound and mixes, and the solvent is then distilled out under reduced pressure；Or liquid of the present invention
Crystal composite can be prepared conventionally, such as will wherein the less component of content be dissolved at a higher temperature content compared with
In big key component, or each affiliated component is dissolved in organic solvent, such as acetone, chloroform or methyl alcohol, then will be molten
Obtained after liquid mixing removal solvent.
Liquid-crystal composition of the present invention has low rotary viscosity, big elastic constant, good low temperature intersolubility and fast
Response speed, can be used for the fast-response liquid crystal display of plurality of display modes, be preferably applied to IPS, FFS or VA type liquid crystal
Showing device.Composition of the present invention is in the class VA types such as above-mentioned liquid crystal display device, especially MVA, PVA, PSVA
Use in liquid crystal display device can be obviously improved liquid crystal display display effect.
Specific embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Unless otherwise indicated, percentage is weight percentage in the present invention；Temperature unit for degree Celsius；△ n represent optics it is each to
Different in nature (25 DEG C)；△ ε represent dielectric anisotropy (25 DEG C, 1000Hz)；V10Threshold voltage is represented, is in relative permeability
Character voltage (V, 25 DEG C) when changing 10%；γ 1 represents rotary viscosity (mPa.s, 25 DEG C)；Cp represents liquid-crystal composition
Clearing point (DEG C)；K11、K22、K33Splay, distortion and bend elastic constant (pN, 25 DEG C) are represented respectively.
In following embodiment, code shown in unit structure table 1 is represented in liquid-crystal compounds.
Table 1：The unit structure code of liquid-crystal compounds
By taking following compound structure as an example：
It is expressed as：4MO2
It is expressed as：3CPWO1
In following embodiment, the preparation of liquid-crystal composition uses heat of solution method, comprises the following steps：With balance by weight
Percentage weighs liquid-crystal compounds, wherein weigh addition sequence without particular requirement, generally with liquid-crystal compounds fusing point from high to low
Order weighs mixing successively, and heating stirring causes that each component melts uniformly at 60~100 DEG C, then through filtering, revolving, finally seals
Dress obtains final product target sample.
In following embodiment, the performance parameter of the weight percent of each component when liquid-crystal composition sees below table in liquid-crystal composition
Lattice.
In following examples, involved all components are known liquid-crystal compounds, can be provided by Beijing Bayi Space.
Embodiment 1
Table 2：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 2
Table 3：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 3
Table 4：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 4
Table 5：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 5
Table 6：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 6
Table 7：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 7
Table 8：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 8
Table 9：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 9
Table 11：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 10
Table 11：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 11
Table 12：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 12
Table 13：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 13
Table 14：The weight percent of each component when performance parameter in liquid-crystal composition
Comparative example 1
Table 15：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 1 collect comparing with each performance parameter value of the gained liquid-crystal composition of comparative example 1, referring to table 16.
Table 16：The performance parameter of liquid-crystal composition compares
| Δn | Δε | Cp | γ1 | ||||
| Embodiment 1 | 0.101 | -2.8 | 75 | 47 | 13.6 | 6.8 | 13.8 |
| Comparative example 1 | 0.098 | -2.7 | 76 | 65 | 11.8 | 5.9 | 13.6 |
Understood through comparing：Compared with comparative example 1, the liquid-crystal composition that embodiment 1 is provided has low rotary viscosity, that is, have
There is the faster response time.
As seen from the above embodiment, the liquid-crystal composition containing dibenzofurans liquid-crystal compounds provided by the present invention, has
Low viscosity, high resistivity, suitable optical anisotropy, good low temperature intersolubility, big elastic constant and excellent
Photostability and heat endurance, it is possible to decrease the response time of liquid crystal display, so that it is slow to solve liquid crystal display response speed
Problem.Therefore, liquid-crystal composition provided by the present invention is applied to the IPS and FFS and MVA, PVA, PSVA of fast-response
Deng VA type liquid crystal display devices, the liquid crystal display device of fast-response is particularly well-suited to.
Although above the present invention is described in detail with a general description of the specific embodiments, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of negative dielectric anisotropy liquid crystal composition containing benzofuran, it is characterised in that：The liquid-crystal composition is extremely
Less comprising the compound representated by a kind of formula I：
R1、R2C is represented independently of one another1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be by O, S
Or CH=CH is replaced；
And including at least a kind of compounds of formula II：
R3、R4C is represented independently of one another1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be by O, S
Or CH=CH is replaced；A1、A2Trans 1,4- cyclohexyl or 1,4- phenylenes are represented independently of one another.
2. the liquid-crystal composition according to claim 1, it is characterised in that：Compound representated by formula I is selected from down
One or more of representative compound in formula：
Wherein, R1Represent C1~C7Straight chained alkyl；
It is preferred that compound representated by the formula I is selected from one or more of representative compound in following formula：
3. liquid-crystal composition according to claim 1 and 2, it is characterised in that：Compound choosing representated by the formula II
From one or more of following compound：
Wherein, R3Represent C1~C7Straight chained alkyl；R4Represent C1~C7Straight chained alkyl, unbranched alkoxy or C2~C7Straight chain
Alkenyl；
It is preferred that the compound representated by the formula II is selected from one or more of the compound representated by Formula II A1~Formula II C24：
4. the liquid-crystal composition according to claim any one of 1-3, it is characterised in that：The liquid-crystal composition also includes one
Plant or various compounds selected from general formula III structure：
R5、R6C is represented independently of one another1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can by O or
CH=CH replaces；
A3It is each independently selected from following structure：
Preferably, the compound representated by general formula III is selected from one or more in formula III A~formula III C：
Wherein, R5Represent C2~C10Straight chained alkyl or straight-chain alkenyl；R6Represent C1~C8Straight chained alkyl；
It is highly preferred that compound representated by general formula III is selected from one or more in formula III A1~formula III C30 structures：
5. the liquid-crystal composition according to claim any one of 1-4, it is characterised in that：The liquid-crystal composition also includes one
Plant or various selected from compounds of formula IV：
Wherein, R7、R8C is represented independently of one another1~C12Straight chained alkyl, alkoxy or C2~C12Straight-chain alkenyl；A4Represent
Isosorbide-5-Nitrae-cyclohexylidene or Isosorbide-5-Nitrae-phenylene；Z1Represent singly-bound, CH2CH2Or CH2O；
Preferably, the compound representated by formula IV is selected from one or more in following compound：
Wherein, R7Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl；R8Represent C1~C7Straight chained alkyl or straight chain alkane
Epoxide；
It is highly preferred that compounds of formula IV is selected from one or more in formula IV A1~formula IV D16；
6. the liquid-crystal composition according to claim any one of 1-5, it is characterised in that：Liquid-crystal composition can also include one
Compound representated by kind or various formula V：
Wherein, R9、R10C is represented independently of one another1~C12Straight chained alkyl；
Preferably, the compound representated by formula V is selected from one or more in following structure：
7. the liquid-crystal composition according to claim any one of 1-6, it is characterised in that：The liquid-crystal composition also includes one
Compound representated by kind or various formula VI：
Wherein, R11、R12C is represented independently of one another1~C12Straight chained alkyl or unbranched alkoxy；L1Represent H or F；
Preferably, the compound representated by formula VI is selected from one or more in VIA and VIB：
Wherein, R11、R12C is represented independently of one another1~C7Straight chained alkyl or unbranched alkoxy；It is preferred that C1~C5Straight chained alkyl or
Unbranched alkoxy；
And/or, the liquid-crystal composition is also comprising the compound representated by one or more formula VII：
Wherein R13、R14C is represented independently of one another1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；A5
Selected from following structure：
A6Selected from following structure：
Preferably, the compound representated by formula VII is selected from one or more in following structure：
Wherein, R13Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl, preferably C2~C5Straight chained alkyl or straight-chain alkenyl；
R14Represent C1~C7Straight chained alkyl or unbranched alkoxy, preferably C1~C5Straight chained alkyl or unbranched alkoxy.
8. the liquid-crystal composition according to claim any one of 1-7, it is characterised in that：The liquid-crystal composition is also comprising one kind
Or the compound representated by various formula VIII：
Wherein, R15、R16C is represented independently of one another1~C12Straight chained alkyl；L2、L3H or F is represented independently of one another；A7
Represent Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；
Preferably, the compound representated by formula VIII is selected from one or more of following structure：
Wherein, R15、R16C is represented independently of one another1~C7Straight chained alkyl, preferably C2~C5Straight chained alkyl；
And/or, the liquid-crystal composition is also comprising the compound representated by one or more formula IX：
Wherein, R17、R18C is represented independently of one another1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl,；
Preferably, R17Represent C2~C7Straight-chain alkenyl or straight chained alkyl, further preferred C2~C5Straight chained alkyl or straight-chain alkenyl；
R18Represent C1~C7Straight chained alkyl or unbranched alkoxy, further preferred C1~C5Straight chained alkyl or unbranched alkoxy.
9. the liquid-crystal composition according to claim any one of 1-8, it is characterised in that：The liquid-crystal composition by weight,
Including following components：Compound representated by 1~11 part of formula I, the compound representated by 20~50 parts of formula II, 0~15 part of formula
Compound representated by III, the compound representated by 3~20 parts of formula IV, the compound representated by 0~30 part of formula V, 0~15
Compound representated by part formula VI, the compound representated by 5~50 parts of formula VII, the compound representated by 0~40 part of formula IX；
Preferably, including following components：Compound representated by 2~11 parts of formula I, the compound representated by 27~40 parts of formula II,
Compound representated by 0~10 part of general formula III, the compound representated by 5~16 parts of formula IV, the chemical combination representated by 0~25 part of formula V
Thing, the compound representated by 0~10 part of formula VI, the compound representated by 7~48 parts of formula VII, representated by 0~33 part of formula IX
Compound；
Or the liquid-crystal composition is by weight, including following components：Compound representated by 12~30 parts of formula I, 20~60
Compound representated by part formula II, the compound representated by 0~25 part of general formula III, the compound representated by 0~10 part of formula IV,
Compound representated by 0~20 part of formula V, the compound representated by 0~60 part of formula VII, representated by 0~10 part of formula VIII
Compound, the compound representated by 0~25 part of formula IX；
Preferably, including following components：Compound representated by 12~25 parts of formula I, the chemical combination representated by 29~53 parts of formula II
Thing, the compound representated by 0~21 part of general formula III, the compound representated by 0~2 part of formula IV, representated by 0~10 part of formula V
Compound, the compound representated by 0~54 part of formula VII, the compound representated by 0~8 part of formula VIII, 0~20 part of formula IX
Representative compound；
Or the liquid-crystal composition is by weight, including following components：Compound representated by 3~30 parts of formula I, 20~55
Compound representated by part formula II, the compound representated by 5~25 parts of general formula IIIs, the compound representated by 0~20 part of formula IV,
Compound representated by 0~15 part of formula V, the compound representated by 0~45 part of formula VII, representated by 0~10 part of formula VIII
Compound, the compound representated by 0~40 part of formula IX；
Preferably, the liquid-crystal composition includes following components：Compound representated by 5~25 parts of formula I, 29~53 parts of formula II
Representative compound, the compound representated by 6~21 parts of general formula IIIs, the compound representated by 0~16 part of formula IV, 0~10 part
Compound representated by formula V, the compound representated by 0~40 part of formula VII, the compound representated by 0~8 part of formula VIII,
Compound representated by 0~33 part of formula IX；
Or the liquid-crystal composition is by weight, including following components：Compound representated by 1~15 part of formula I, 20~40
Compound representated by part formula II, the compound representated by 1~20 part of formula IV, the compound representated by 0~30 part of formula V,
Compound representated by 0~15 part of formula VI, the compound representated by 25~60 parts of formula VII；
Preferably, the liquid-crystal composition includes following components：Compound representated by 2~14 parts of formula I, 27~36 parts of formula II
Representative compound, the compound representated by 2~15 parts of formula IV, the compound representated by 0~25 part of formula V, 0~10 part
Compound representated by formula VI, the compound representated by 29~54 parts of formula VII；
It is further preferred that the liquid-crystal composition includes following components：Compound representated by 2~14 parts of formula I, 27~36 parts of formula II
Representative compound, the compound representated by 2~14 parts of formula IV, the compound representated by 6~25 parts of formula V, 29~48
Compound representated by part formula VII.
10. application of the liquid-crystal composition in liquid crystal display device described in any one of claim 1-9；It is preferred that the liquid crystal display
Device is IPS, FFS or VA type liquid crystal display device；The VA types liquid crystal display device is preferably MVA, PVA or PSVA
Liquid crystal display device.
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| CN109423305A (en) * | 2017-08-23 | 2019-03-05 | Dic株式会社 | The manufacturing method of liquid-crystal composition |
| CN109423303A (en) * | 2017-08-22 | 2019-03-05 | 北京八亿时空液晶科技股份有限公司 | A kind of negative dielectric liquid crystal composition containing benzofuran compound and its application |
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| CN109423303B (en) * | 2017-08-22 | 2021-09-14 | 北京八亿时空液晶科技股份有限公司 | Negative dielectric liquid crystal composition containing benzofuran compound and application thereof |
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| TWI768514B (en) * | 2020-04-09 | 2022-06-21 | 大陸商北京八億時空液晶科技股份有限公司 | A liquid crystal composition with negative dielectric anisotropy and its application |
| WO2021203554A1 (en) * | 2020-04-09 | 2021-10-14 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal compound having negative dielectric anisotropy, and application thereof |
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