CN108048113A - A kind of liquid-crystal composition and its application - Google Patents
A kind of liquid-crystal composition and its application Download PDFInfo
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- CN108048113A CN108048113A CN201711292647.6A CN201711292647A CN108048113A CN 108048113 A CN108048113 A CN 108048113A CN 201711292647 A CN201711292647 A CN 201711292647A CN 108048113 A CN108048113 A CN 108048113A
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- liquid
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
Abstract
The present invention relates to a kind of liquid-crystal compositions.The liquid-crystal composition includes the component of following mass percent：Liquid-crystal compounds shown in 1~15% one or more general formulas I 1 and/or general formula I 2；Liquid-crystal compounds shown in 3~30% one or more general formulas II 1 and/or II 2；Liquid-crystal compounds shown in 20~70% one or more general formula IIIs；Liquid-crystal compounds shown in 10~45% one or more general formulae IVs；Liquid-crystal compounds shown in 5~40% one or more general formulas V.Wherein, the structure of general formula I 1, general formula I 2, general formula II, general formula III, general formulae IV and general formula V is as follows.The invention further relates to a kind of applications of liquid-crystal composition.Advantageous effect：The liquid-crystal composition has appropriate high clearing point, appropriate birefringence anisotropic, high dielectric anisotropic, low rotary viscosity, fast response speed.
Description
Technical field
The present invention relates to a kind of liquid-crystal composition, the invention further relates to a kind of liquid-crystal composition in field of liquid crystal
Application.
Background technology
Liquid crystal material is the key that liquid crystal display photoelectron material.The appearance and development of liquid crystal material and liquid crystal display skill
The appearance and development of art are allo.
The property of any organic compound depends on the structure of its molecule, and liquid-crystal compounds is no exception, liquid-crystal compounds
Characteristic determined by the molecular structure of liquid-crystal compounds.The molecular structure of monomer liquid crystal compound is mainly by central group, end
Group, linking group and lateral group composition.In general, people change monomer liquid by the structure functional group for controlling introducing different
The a certain physical-property parameter of brilliant compound is (such as：Polar group is introduced in the end of molecular structure to change the dielectric of compound
Constant is conducive to raising phase transition temperature in linking group using the group with big molecule length-width ratio).Therefore, in recent years,
People achieve significant progress to the understanding of monomer liquid crystal compound and development.
In order to meet requirement of the display to liquid crystal material various performance parameters, it is necessary to which people are by various of monomer liquid-crystal compounds
It mixes, to reach Performance optimization.It is well known that in mixed liquid crystal material, the items of liquid-crystal compounds are physical
Matter there is the difficulty mutually restricted (such as：Although response time but usually meeting again can be shortened while low viscosity value is realized
Reduce clearing point), it is impossible to adjust a performance parameter without the value for influencing another parameter, therefore, although people can
Some physical-property parameters are improved with the ratio by adjusting different liquid-crystal compositions, but can not play and take into account multiple performance
Effect.
Therefore, it is necessary to propose a kind of liquid-crystal composition, to solve appropriate high clearing point needed for practical application, appropriate double
Reflect anisotropic, high dielectric anisotropic, low rotary viscosity, fast response speed performance the problem of.
The content of the invention
The present invention in view of the above shortcomings of the prior art, provide a kind of appropriate high clearing point, appropriate birefringence anisotropic,
High dielectric anisotropic, low rotary viscosity, the liquid-crystal composition of fast-response speed.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of liquid-crystal composition, the liquid-crystal composition include：
It accounts for shown in one or more general formulas I -1 of the 1~15% of the liquid-crystal composition gross mass and/or general formula I -2
Liquid-crystal compounds；
It accounts for shown in one or more general formulas II -1 of the 3~30% of the liquid-crystal composition gross mass and/or general formula II -2
Compound；
Account for the liquid-crystal compounds shown in 20~70% one or more general formula IIIs of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 10~45% one or more general formulae IVs of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 5~40% one or more general formulas V of the liquid-crystal composition gross mass；
Wherein, R1、R2、R3、R4、R5、R6、R7、R8Alkyl that expression carbon number independently is 1-7, carbon number are
The alkoxy or carbon number of 1-6 is the alkenyl of 2-6；
L1、L2、L3、L4、L5、L6、L7、L8、L9、L10Each independent expression H or F；
X1、X2、X3、X4The alkyl halide that alkyl that each independent expression F, carbon number are 1-6, carbon number are 1-6
The halogenated alkoxy that haloalkene alkyl that alkylene that base, carbon number are 2-6, carbon number are 2-6, carbon number are 1-6
Or any one in the haloalkenyloxy that carbon number is 2-6；
Each independent following base of expression
One or more in group：
One or more in independent expression following groups：
The expression 0 or 1 of m independences；
N, o, p each independent expression 0,1 or 2, n+o≤3；
P represents 0,1 or 2, when p represents 2,Can it is identical can be different；
Preferably, the structure of the general formula I -1 and the structure of general formula I -2 difference are as follows：
Preferably, the structure of the general formula II -1 and the structure of general formula II -2 difference are as follows：
Preferably, the structure of the general formula III is as follows：
Preferably, the structure of the general formulae IV is as follows：
Preferably, the structure of the general formula V is as follows：
Preferably, the liquid-crystal composition includes：Account for 1~10% one or more of the liquid-crystal composition gross mass
I -2 compound represented of general formula I -1 and/or general formula；Account for one or more tools of the 3~20% of the liquid-crystal composition gross mass
There is the liquid-crystal compounds shown in general formula II -1 and/or II -2；Account for the liquid-crystal composition gross mass 25~65% one kind or
A variety of liquid-crystal compounds with shown in general formula III；Account for one or more tools of the 15~35% of the liquid-crystal composition gross mass
There is the liquid-crystal compounds shown in general formulae IV；15~35% one or more for accounting for the liquid-crystal composition gross mass have general formula
Liquid-crystal compounds shown in V.
The present invention also provides a kind of electrooptics liquid crystal display, including the liquid-crystal composition any one of above-mentioned.
The present invention also provides a kind of liquid-crystal composition as any one of above-mentioned field of liquid crystal display application.
One aspect of the present invention is reasonably introduced multiple by the change to monomer structure in the structure of single crystal compound
Functional groups play the effect for taking into account multiple performance；On the other hand by the optimum organization to various liquid-crystal compositions and excellent
Ratio is matched, by test, it is viscous to have reached appropriate high clearing point, appropriate birefringence anisotropic, high dielectric anisotropic, low rotation
Degree, the effect of fast-response speed.
Specific embodiment
Illustrate the present invention below with reference to specific embodiment.It should be noted that the following examples are the present invention
Example, be only used for illustrating the present invention, and be not limited to the present invention.In the case of without departing from present subject matter or scope,
It can carry out other combinations and the various improvement in present inventive concept.
Two or more liquid-crystal compounds using conventional method are mixed and produced by the liquid-crystal composition of the present invention, are such as existed
Different component is mixed under high temperature and is prepared by method soluble in one another, wherein, liquid-crystal composition is dissolved in for the compound
It in solvent and mixes, then distills out the solvent under reduced pressure；Or the liquid-crystal composition of the present invention can be conventionally
It prepares, such as the smaller component of wherein content is dissolved in the larger key component of content or at a higher temperature by each institute
Belong to component to dissolve in organic solvent, such as acetone, chloroform or methanol, it is obtained after removing solvent after then solution is mixed.
Percentage in the present invention is weight percentage, and temperature is degree Celsius (DEG C).Such as illustrate without other, other symbols
Specific meaning and test condition are as follows：
Cp (DEG C) represents the clearing point of liquid crystal.
S-N represents the crystalline state of liquid crystal to nematic fusing point (DEG C).
△ n are optical anisotropy, and no is the refractive index of ordinary light, and ne is the refractive index of extraordinary ray, and test condition is,
589nm wavelength, 25 DEG C.Measuring instrument：Abbe refractometer
△ ε are dielectric anisotropy, △ ε=ε ∥-ε ⊥, wherein, ε ∥ are the dielectric constant parallel to molecular axis, and ε ⊥ are
Perpendicular to the dielectric constant of molecular axis, test condition is 25 DEG C；Measuring instrument：INSTEC:ALCT-IR1；20 microns of parallel boxes,
It is not added with chiral agent.
γ1：Rotary viscosity (mPas), test condition are 25 ± 0.2 DEG C.
Measuring instrument：INSTEC:ALCT-IR1；20 microns of parallel boxes, are not added with chiral agent.
Liquid-crystal composition in the embodiment of the present invention using the heat of solution generally used in the industry or shakes mixed method, first
Liquid-crystal compounds is weighed by weight percentage with balance, wherein addition sequence is weighed without particular requirement, usually with liquid-crystal compounds
The order of fusing point from high to low weighs mixing successively, is shaken under 60 DEG C of constant temperature in heating stirring or earthquake machine so that each component
It melts uniformly, then filters, finally encapsulated up to target sample through absorption, micro-filtration membrane microfiltration.
Used each ingredient below in an example can be synthesized or passed through by well known method
Commercial sources obtain.These synthetic technologys are conventional, and acquired each liquid-crystal compounds meets electrical type compound mark after tested
It is accurate.
Embodiment 1
The formula of liquid-crystal composition is as follows：
Embodiment 2
The formula of liquid-crystal composition is as follows：
Embodiment 3
The formula of liquid-crystal composition is as follows：
Embodiment 4
The formula of liquid-crystal composition is as follows：
Embodiment 5
The formula of liquid-crystal composition is as follows：
Embodiment 6
The formula of liquid-crystal composition is as follows：
Embodiment 7
The formula of liquid-crystal composition is as follows：
Embodiment 8
The formula of liquid-crystal composition is as follows：
Embodiment 9
The formula of liquid-crystal composition is as follows：
Embodiment 10
The formula of liquid-crystal composition is as follows：
The mixed every physical property ginseng of plurality of liquid crystals monomer can be accurately calculated currently without any theoretical or formula
Number, the present invention solve the problems, such as that mixed liquid crystal is formulated by many experiments.It can be drawn by above-described embodiment 1- embodiments 10,
One aspect of the present invention reasonably introduces multiple functional bases by the change to monomer structure in the structure of single crystal compound
Group, plays the effect for taking into account multiple performance；On the other hand the optimum organization to various liquid-crystal compositions and optimum ratio, warp are passed through
Test is crossed, has reached appropriate high clearing point, appropriate birefringence anisotropic, high dielectric anisotropic, low rotary viscosity, fast-response
The effect of speed.
The present invention can be summarized with others without prejudice to the concrete form of the spirit or essential characteristics of the present invention.Therefore, nothing
By from the point of view of which point, the embodiment above of the invention can only all be considered the description of the invention and cannot limit this hair
Bright, claims indicate the scope of the present invention, and above-mentioned explanation does not point out the scope of the present invention, therefore, with this
Any change in the comparable meaning and scope of claims of invention is all considered as the claim for being included in the present invention
In the range of book.
Claims (9)
1. a kind of liquid-crystal composition, which is characterized in that the liquid-crystal composition includes：
Account for one or more general formulas I -1 of the 1~15% of the liquid-crystal composition gross mass and/or the liquid crystal shown in general formula I -2
Compound；
Account for one or more general formulas II -1 of the 3~30% of the liquid-crystal composition gross mass and/or the change shown in general formula II -2
Close object；
Account for the liquid-crystal compounds shown in 20~70% one or more general formula IIIs of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 10~45% one or more general formulae IVs of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 5~40% one or more general formulas V of the liquid-crystal composition gross mass；
Wherein, R1、R2、R3、R4、R5、R6、R7、R8Alkyl that expression carbon number independently is 1-7, carbon number 1-6
Alkoxy or carbon number be 2-6 alkenyl；
L1、L2、L3、L4、L5、L6、L7、L8、L9、L10Each independent expression H or F；
X1、X2、X3、X4Halogenated alkyl that alkyl that each independent expressions F, carbon number are 1-6, carbon number are 1-6, carbon original
The halogenated alkoxy or carbon atom that haloalkene alkyl that alkylene that subnumber is 2-6, carbon number are 2-6, carbon number are 1-6
Number is any one in the haloalkenyloxy of 2-6；
Each in independent expression following groups
One or more：
One or more in independent expression following groups：
The expression 0 or 1 of m independences；
N, o, p each independent expression 0,1 or 2, n+o≤3；
P represents 0,1 or 2, when p represents 2,Can it is identical can be different.
2. liquid-crystal composition according to claim 1, which is characterized in that the structure of the general formula I -1 and the knot of general formula I -2
Structure difference is as follows：
3. liquid-crystal composition according to claim 1, which is characterized in that the structure of the general formula II -1 and general formula II -2
Structure difference is as follows：
4. liquid-crystal composition according to claim 1, which is characterized in that the structure of the general formula III is as follows：
5. liquid-crystal composition according to claim 1, which is characterized in that the structure of the general formulae IV is as follows：
6. liquid-crystal composition according to claim 1, which is characterized in that the structure of the general formula V is as follows：
7. liquid-crystal composition as claimed in claim 6, which is characterized in that the liquid-crystal composition includes：
Account for one or more general formulas I -1 of the 1~10% of the liquid-crystal composition gross mass and/or the chemical combination shown in general formula I -2
Object；
3~20% one or more of the liquid-crystal composition gross mass are accounted for the liquid shown in general formula II -1 and/or II -2
Brilliant compound；
25~65% one or more of the liquid-crystal composition gross mass are accounted for the liquid-crystal compounds shown in general formula III；
15~35% one or more of the liquid-crystal composition gross mass are accounted for the liquid-crystal compounds shown in general formulae IV；
15~35% one or more of the liquid-crystal composition gross mass are accounted for the liquid-crystal compounds shown in general formula V.
8. a kind of electrooptics liquid crystal display, which is characterized in that including liquid crystal group such as according to any one of claims 1 to 7
Close object.
It is 9. a kind of if liquid-crystal composition according to any one of claims 1 to 7 is in the application of field of liquid crystal display.
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Cited By (2)
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| CN108531197A (en) * | 2018-05-31 | 2018-09-14 | 烟台显华化工科技有限公司 | A kind of liquid-crystal composition and its application |
| CN116496796A (en) * | 2023-06-29 | 2023-07-28 | 北京灵犀微光科技有限公司 | Liquid crystal composition, holographic polymer dispersed liquid crystal material and application thereof |
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| CN116496796A (en) * | 2023-06-29 | 2023-07-28 | 北京灵犀微光科技有限公司 | Liquid crystal composition, holographic polymer dispersed liquid crystal material and application thereof |
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Application publication date: 20180518 |