CN106281355A - Liquid crystal media and application thereof - Google Patents

Liquid crystal media and application thereof Download PDF

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Publication number
CN106281355A
CN106281355A CN201510307199.7A CN201510307199A CN106281355A CN 106281355 A CN106281355 A CN 106281355A CN 201510307199 A CN201510307199 A CN 201510307199A CN 106281355 A CN106281355 A CN 106281355A
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liquid crystal
crystal media
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gross weight
compound
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CN106281355B (en
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韩文明
徐爽
陈昭远
游石枝
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Jiangsu Hecheng Display Technology Co Ltd
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Jiangsu Hecheng Display Technology Co Ltd
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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
    • C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group

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Abstract

The invention provides a kind of liquid crystal media, described liquid crystal media, comprise the group of the compound composition of at least one formula I and/or formula II；At least one general formulae IV-1 and/or IV-2 compound composition group；The group of the compound composition of at least one formula V-1 and/or V-2, this liquid crystal media has wide nematic phase range, relatively low driving voltage, the most relatively characteristic of high/low temperature transformation temperature, the USH mode display comprising described liquid crystal media has wider phase transition temperature, relatively low driving voltage, relatively high/low temperature transformation temperature.

Description

Liquid crystal media and application thereof
Technical field
The present invention relates to a kind of liquid crystal media and comprise the liquid crystal display cells of described liquid crystal media, especially, it is adaptable to " uniformly erectting spiral " The liquid-crystal composition of (Uniformly Standing Helix, USH) pattern and the application in liquid crystal display cells thereof.
Background technology
Liquid crystal display cells can be at the home-use various electrical equipment with clock and watch, electronic calculator as representative, mensuration machine, automobile panel, word Manage in mechanical, electrical brain, printer, TV etc. and use.As liquid crystal display mode, in its representational mode, can enumerate PC (phase change, Phase transformation), TN (twist nematic, twisted-nematic), STN (super twisted nematic, super twisted nematic), ECB (electrically controlled Birefringence, electrically conerolled birefringence), OCB (optically compensated bend, optical compensation curved), IPS (in-plane switching, Coplanar transformation), the quasi-mode such as VA (vertical alignment, vertical orientation), CSH (color superhomeotropic, colored super vertical plane). Type of drive according to element is divided into PM (passive matrix, passive-matrix) type and AM (active matrix, active-matrix) type.PM divides For the static type such as (static) and multichannel (multiplex).AM is divided into TFT (thin filmtransistor, thin film transistor (TFT)), MIM (metal Insulator metal, metal-insulator-metal) etc. type.The type of TFT has non-crystalline silicon (amorphous silicon) and polysilicon (polycrystal silicon).The latter is divided into high temperature modification and low form according to manufacturing process.Liquid crystal display cells be divided into according to the type of light source utilize nature light reflection-type, Utilize the infiltration type of backlight and utilize nature light and the semi-transmission type of two kinds of light sources of backlight.
After these display patterns, the novel display pattern of the cholesterol liquid crystal with relatively short pitch is used to be used for the aobvious of " flexure electricity " effect Show in device.Flexure electricity liquid crystal material is to it known in the art, such as document Chandrasekhar, " Liquid Crystals ", 2nd edition, Cambridge University Press (1992) and P.G.deGennes etc., " The Physics of Liquid crystals ", second edition, Oxford Science Publications describes flexoelectric effect in (1995).
For flexure electricity display pattern, the novel display pattern of the cholesterol liquid crystal that use has relatively short pitch is used for " curved electricity (flexo-electric) " in the display of effect.In described display, by cholesterol liquid crystal with uniform horizontal spiral oriented, it is referred to as " uniformly Horizontal spiral (uniformly lying helix, ULH) pattern ".But, in this mode, still suffer from some problem and must be accounted for, wherein, Especially significantly problem be difficult to obtain be uniformly directed, high voltage needed for addressing is incompatible with common drive electronics, contrast is degenerated and closed During state and non-real unglazed and electrooptical characteristic is the most delayed.
In order to solve the problems referred to above, those skilled in the art, through being continually striving to, have innovated the aobvious of a kind of novelty on the basis of ULH display pattern Show pattern: uniformly erectting spiral (uniformly standing helix, USH) pattern, this display pattern is considered the alternating pattern after IPS, This is because compare other display patterns (such as IPS, VA etc.), USH display pattern can show even provides more wide viewing angle, and can improve The black level of display.
For USH pattern, as ULH pattern, it has been suggested that use the curved TURP of the former base liquid crystal material of Double liquid crystal to change.But, due to institute Unfavorable high driving voltage, the phase scope relative narrower of symmetry nematic material and the irreversible switching characteristic thereof needed, so waiting material and current LCD There is a problem when drive scheme is used together.
Having now been found that uses the LCD of bar-shaped LC material operation dielectric switching can be used as the replacement concept changed of curved TURP to overcome with USH pattern Above-mentioned difficulties.But, still there is the problem such as nematic phase range relative narrower, driving voltage height in liquid crystal material of the prior art.
Accordingly, it would be desirable to have the novel liquid crystal media of the characteristic of improvement.The rotation viscosity of this liquid crystal media should be the lowest, in addition to this parameter, and should Medium must represent wide nematic phase, relatively low driving voltage.Dielectric anisotropy sufficiently high just must can make driving voltage moderately low.
Summary of the invention
Goal of the invention: it is an object of the invention to provide a kind of novel liquid crystal media, this liquid crystal media has wide nematic phase range, especially, this liquid Crystalline medium has compared with high/low temperature transformation temperature and relatively low driving voltage, and the USH mode display comprising described liquid crystal media has wider phase alternating temperature Degree, relatively low driving voltage, especially low-temperature phase height is higher.
Technical scheme: in order to realize foregoing invention purpose, the invention provides a kind of liquid crystal media, and described liquid crystal media comprises:
The group of the compound composition of at least one formula I and/or formula II:
At least one general formulae IV-1 and/or IV-2 compound composition group:
And
The group of the compound composition of at least one formula V-1 and/or V-2:
Wherein,
Described Y1And Y2Identical or different, the most independent straight chained alkyl representing 1-12 carbon atom, wherein one or more non-conterminous-CH2- Can be replaced by-O-；
Described R5、R6And R7Identical or different, the most independent represents the alkyl of 1-12 carbon atom, the thiazolinyl of 2-12 carbon atom, 1-12 The alkoxyl of individual carbon atom or the alkenyloxy group of 2-12 carbon atom；
X4Represent-F ,-CN ,-CF3、-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described ringRingRingRingIdentical or different, table independently of one another ShowWherein,In one or more hydrogen atoms are optional is replaced by fluorine atoms；
Described ringRingRingIdentical or different, represent independently of one anotherOrWherein,In one or more hydrogen atoms are optional is replaced by fluorine atoms；
Described Z3Represent singly-bound ,-CH2CH2-、-CF2O-、-CH2O-、-COO-；
Described L11、L12、L13And L14Identical or different, the most independent expression H or F；
Described n represents the positive integer of 5,7,9,11 or 13；
Described m represents the positive integer of 3,5,7,9 or 11.
In certain embodiments of the present invention, the compound of described formula I comprises the compound of at least one formula I-1:
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 1-12 carbon atom；
Described L1、L2、L3、L4、L5、L6、L7、L8、L9And L10Identical or different, the most independent expression H or F；
Described n represents the positive integer of 5,7,9,11 or 13.
In certain embodiments of the present invention, the group of the compound composition of described formula I and/or formula II accounts for described liquid crystal media weight 10-90%, Described general formulae IV-1 and/or IV-2 compound composition group account for described liquid crystal media weight 1-50%；Described formula V-1 and/or the compound of V-2 The group of composition accounts for described liquid crystal media weight 1-50%.
Present invention also offers a kind of liquid crystal media, described liquid crystal media comprises:
One or more in the group of the compound composition of at least one formula I-1,
At least one formula I-2 and/or I-3 compound composition group in one or more,
One or more in the group of the compound composition of at least one formula II-1, II-2 and/or II-3,
At least one general formulae IV-1 and/or IV-2 compound composition group:
And
The group of the compound composition of at least one formula V-1 and/or V-2:
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 1-12 carbon atom；
Described R5、R6And R7Identical or different, the most independent represents the alkyl of 1-12 carbon atom, the thiazolinyl of 2-12 carbon atom, 1-12 The alkoxyl of individual carbon atom or the alkenyloxy group of 2-12 carbon atom；
Described X1、X2And X3Identical or different, the most independent expression-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
X4Represent-F ,-CN ,-CF3、-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described ringRingRingIdentical or different, represent independently of one anotherOrWherein,In one or more hydrogen atoms are optional is replaced by fluorine atoms；
Described Z3Represent singly-bound ,-CH2CH2-、-CF2O-、-CH2O-or-COO-；
Described L1、L2、L3、L4、L5、L6、L7、L8、L9And L10Identical or different, the most independent expression H or F；
Described L11、L12、L13And L14Identical or different, the most independent expression H or F；
Described n represents the positive integer of 5,7,9,11 or 13；
Described m represents the positive integer of 3,5,7,9 or 11.
In certain embodiments of the present invention, described R1And R2Identical or different, the most independent straight chain alkane representing 1-7 carbon atom Base.
In certain embodiments of the present invention, described X1、X2And X3Identical or different, the most independent expression-F ,-CN or-OCF3。
In certain embodiments of the present invention, the group of the compound composition of described formula I-1 accounts for described liquid crystal media weight 10-90%；Described logical Formula I-2 and/or I-3 compound composition group account for described liquid crystal media weight 10-90%；Described formula II-1, II-2 and/or the compound of II-3 The group of composition accounts for described liquid crystal media weight 10-90%；Described general formulae IV-1 and/or IV-2 compound composition group account for described liquid crystal media weight 3-30%；The group of the compound composition of described formula V-1 and/or V-2 accounts for described liquid crystal media weight 3-30%.
In certain embodiments of the present invention, it is preferable that the group of the compound composition of described formula I-1 accounts for described liquid crystal media weight 10-55%； Described formula I-2 and/or I-3 compound composition group account for described liquid crystal media weight 10-55%；Described formula II-1, II-2 and/or II-3 The group of compound composition accounts for described liquid crystal media weight 10-55%；Described general formulae IV-1 and/or IV-2 compound composition group account for described liquid crystal media Weight 5-30%；The group of the compound composition of described formula V-1 and/or V-2 accounts for described liquid crystal media weight 5-25%.
In certain embodiments of the present invention, it is highly preferred that the group of the compound composition of described formula I-1 accounts for described liquid crystal media weight 10-30%； Described formula I-2 and/or I-3 compound composition group account for described liquid crystal media weight 15-35%；Described formula II-1, II-2 and/or II-3 The group of compound composition accounts for described liquid crystal media weight 20-35%；Described general formulae IV-1 and/or IV-2 compound composition group account for described liquid crystal media Weight 10-30%；The group of the compound composition of described formula V-1 and/or V-2 accounts for described liquid crystal media weight 5-15%.
In certain embodiments of the present invention, one or more in formula I-1-1 to I-1-7 of the compound of described formula I-1:
And
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 1-12 carbon atom；
Described n represents the positive integer of 5,7,9,11 or 13.
In certain embodiments of the present invention, the compound of described formula I-1 preferably is selected from following structure:
And
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 1-12 carbon atom；
Described n represents the positive integer of 5,7,9,11 or 13.
In certain embodiments of the present invention, one or more in formula I-2-1 to I-2-9 of the compound of described formula I-2:
And
Wherein,
Described R1Represent the straight chained alkyl of 3-12 carbon atom；
Described X1Represent-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described n represents the positive integer of 5,7,9,11 or 13.
In certain embodiments of the present invention, the compound of described formula I-2 preferably is selected from following structure:
Wherein,
Described R1Represent the straight chained alkyl of 3-12 carbon atom；
Described X1Represent-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described n represents the positive integer of 5,7,9,11 or 13.
In certain embodiments of the present invention, one or more in formula I-3-1 to I-3-9 of the compound of described formula I-3:
And
Wherein,
Described X2And X3Identical or different, the most independent expression-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described n represents the positive integer of 5,7,9,11 or 13.
In certain embodiments of the present invention, the compound of described formula I-3 preferably is selected from following structure:
And
Wherein,
Described X2And X3Identical or different, the most independent expression-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described n represents the positive integer of 5,7,9,11 or 13.
In certain embodiments of the present invention, one or more in formula II-1-1 to II-1-7 of the compound of described formula II-1:
And
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 3-12 carbon atom；
Described m represents the positive integer of 3,5,7,9 or 11.
In certain embodiments of the present invention, the compound of described formula II-1 preferably is selected from following structure:
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 3-12 carbon atom；
Described m represents the positive integer of 3,5,7,9 or 11.
In certain embodiments of the present invention, one or more in formula II-2-1 to II-2-9 of the compound of described formula II-2:
And
Wherein,
Described R1Represent the straight chained alkyl of 3-12 carbon atom；
Described X1Represent-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described m represents the positive integer of 3,5,7,9 or 11.
In certain embodiments of the present invention, the compound of described formula II-2 preferably is selected from following structure:
And
Wherein,
Described R1Represent the straight chained alkyl of 3-12 carbon atom；
Described X1Represent-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described m represents the positive integer of 3,5,7,9 or 11.
In certain embodiments of the present invention, one or more in formula II-3-1 to II-3-9 of the compound of described formula II-3:
And
Wherein,
Described X2And X3Identical or different, the most independent expression-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described m represents the positive integer of 3,5,7,9 or 11.
In certain embodiments of the present invention, the compound of described formula II-3 preferably is selected from following structure:
And
Wherein,
Described X2And X3Identical or different, the most independent expression-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described m represents the positive integer of 3,5,7,9 or 11.
Liquid crystal media of the present invention, it is also possible to comprise:
The group of the compound composition of one or more general formula III of described liquid crystal media gross weight 0-15%,
Wherein,
Described R3And R4Identical or different, the most independent expression-F ,-CN, 1-12 carbon atom straight chain alkyl, 1-12 carbon atom fluoroalkane Base, 1-12 carbon atom fluoroalkyl, 2-12 carbon atom thiazolinyl, 2-12 carbon atom fluoro thiazolinyl, wherein, one or more non-conterminous -CH2-can be replaced by-O-；
Described ringRingRingRingIdentical or different, table independently of one another ShowOrWherein,In one or more hydrogen atoms are optional is replaced by fluorine atoms；
Identical or different with q, represent 0 or 1, as p=q=0, ring independently of one anotherAnd ringIt is asynchronously
Z1And Z2Identical or different, represent singly-bound ,-CH independently of one another2CH2-、-CF2O-、-CH2O-or-COO-；
A represents 5,7,9 or 11.
As more preferably scheme, liquid crystal media contains the group of the compound composition of one or more general formula III of gross weight 1-15%.
One or more in general formula III-1 to III-7 of the compound of the described general formula III of the present invention:
And
Wherein,
Described R3And R4Identical or different, the most independent expression-F ,-CN, 1-12 carbon atom straight chain alkyl, wherein, one or more not Adjacent-CH2-can be replaced by-O-, work as R3And R4When being connected with phenyl ring, R3And R4Identical or different, the most independent can be expressed as-F ,-CN, -OCF3Or-CF3；
A represents 5,7,9 or 11.
In certain embodiments of the present invention, one or more in general formulae IV-1-1 to IV-1-2 of the compound of general formulae IV-1:
And
Wherein,
Described R5And R6Identical or different, the most independent represents the alkyl of 1-5 carbon atom, the thiazolinyl of 2-5 carbon atom, 1-5 carbon atom Alkoxyl or the alkenyloxy group of 2-5 carbon atom.
In certain embodiments of the present invention, one or more in general formulae IV-2-1 to IV-2-2 of the compound of general formulae IV-2:
And
Wherein,
Described R5And R6Identical or different, the most independent represents the alkyl of 1-5 carbon atom, the thiazolinyl of 2-5 carbon atom, 1-5 carbon atom Alkoxyl or the alkenyloxy group of 2-5 carbon atom.
In certain embodiments of the present invention, one or more in formula V-1-1 to V-1-8 of the compound of formula V-1:
And
Wherein,
Described R7Represent the alkyl of 1-5 carbon atom, the thiazolinyl of 2-5 carbon atom, the alkoxyl of 1-5 carbon atom or the alkene oxygen of 2-5 carbon atom Base.
In certain embodiments of the present invention, one or more in formula V-2-1 to V-2-3 of the compound of formula V-2:
And
Wherein,
Described R7Represent the alkyl of 1-5 carbon atom, the thiazolinyl of 2-5 carbon atom, the alkoxyl of 1-5 carbon atom or the alkene oxygen of 2-5 carbon atom Base.
Preferably, liquid crystal media of the present invention, described liquid crystal group medium also comprises:
Account for the compounds I-1-2 of described liquid crystal media gross weight 9%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 7%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 6%；
Account for the compounds I-1-2 of described liquid crystal media gross weight 7%；
Account for the compounds I-3-2 of described liquid crystal media gross weight 8%；
Account for the compounds I-3-9 of described liquid crystal media gross weight 4%；
Account for the compounds I-2-4 of described liquid crystal media gross weight 13%；
Account for the compounds I-3-5 of described liquid crystal media gross weight 9%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 8%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 8%；
Account for the compound ii-3-5 of described liquid crystal media gross weight 4%；
Account for the compounds Ⅳ-2-2 of described liquid crystal media gross weight 6%；
Account for the compounds Ⅳ-1-1 of described liquid crystal media gross weight 5%；And
Account for the compound V-1-2 of described liquid crystal media gross weight 3%,
Or, described liquid crystal group medium also comprises:
Account for the compounds I-1-2 of described liquid crystal media gross weight 5%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 4%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 5%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 7%；
Account for the compounds I-1-2 of described liquid crystal media gross weight 4%；
Account for the compounds I-1-2 of described liquid crystal media gross weight 4%；
Account for the compounds I-3-2 of described liquid crystal media gross weight 8%；
Account for the compounds I-3-9 of described liquid crystal media gross weight 3%；
Account for the compounds I-3-5 of described liquid crystal media gross weight 4%；
Account for the compounds I-3-5 of described liquid crystal media gross weight 8%；
Account for the compounds I-3-9 of described liquid crystal media gross weight 7%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 2%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 5%；
Account for the compound ii-3-2 of described liquid crystal media gross weight 7%；
Account for the compound ii-3-5 of described liquid crystal media gross weight 2%；
Account for the compound ii-3-4 of described liquid crystal media gross weight 5%；
Account for the compounds Ⅳ-2-2 of described liquid crystal media gross weight 7%；
Account for the compounds Ⅳ-1-1 of described liquid crystal media gross weight 5%；
Account for the compound V-1-2 of described liquid crystal media gross weight 3%；And
Account for the compound V-1-6 of described liquid crystal media gross weight 5%；
Or, described liquid crystal group medium also comprises:
Account for the compound ii-3-2 of described liquid crystal media gross weight 5%；
Account for the compounds I-2-2 of described liquid crystal media gross weight 15%；
Account for the compound ii-3-10 of described liquid crystal media gross weight 5%；
Account for the compound ii-3-11 of described liquid crystal media gross weight 8%；
Account for the compound ii-3-12 of described liquid crystal media gross weight 8%；
Account for the compounds I-1-2 of described liquid crystal media gross weight 4%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 4%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 4%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 4%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 4%；
Account for the compounds Ⅳ-2-2 of described liquid crystal media gross weight 10%；
Account for the compounds Ⅳ-2-1 of described liquid crystal media gross weight 8%；
Account for the compounds Ⅳ-1-2 of described liquid crystal media gross weight 8%；
Account for the compound V-1-8 of described liquid crystal media gross weight 10%；And
Account for the compound V-2-3 of described liquid crystal media gross weight 3%.
Present invention also offers a kind of liquid crystal display device comprising above-mentioned liquid crystal media, described liquid crystal display device is flexure electrical part, described flexure Electrical part uses USH pattern.
Beneficial effect: compared with prior art, the liquid crystal media that the present invention provides, there is wide nematic phase range, especially there is relatively high/low temperature phase Height and relatively low driving voltage, relatively the characteristic of high/low temperature transformation temperature, is suitable to liquid crystal display cells, the liquid crystal display cells of particularly USH pattern.
Detailed description of the invention
Below with reference to specific embodiments, the present invention is described.It should be noted that the following examples are the example of the present invention, only it is used for illustrating The present invention, and it is not limited to the present invention.In the case of without departing from present subject matter or scope, can carry out in present inventive concept other combination and Various improvement.
For ease of expressing, in following embodiment, the code listed by unit structure table 1 of liquid-crystal composition represents:
The unit structure code of table 1 liquid-crystal compounds
As a example by the compound of following structural formula:
Structural formula 1
This structural formula 1 is as represented by code listed in Table 1, then can be expressed as: nCCGF, the n in code represents the C atomic number of left end alkyl, example If n is " 3 ", i.e. represent that this alkyl is-C3H7；C in code represents cyclohexyl.
Structural formula 2
This structural formula 2 as represented by code listed in Table 1, then can be expressed as: 3PGIO7OGP3.
In following example test event to write a Chinese character in simplified form code name as follows:
T phase transition temperature
TCLiquid crystal phase temperature range (DEG C)
Vth driving voltage
Wherein,
T-phase temperature (DEG C) utilizes DSC test to obtain.
TCLiquid crystal phase temperature range (DEG C) is calculated by phase transition temperature.
Vth test condition: C/1KHZ, JTSB7.0.
The each composition used below in an example, by present inventor according to known methods, it is also possible to by appropriately combined organic Method in synthesis chemistry synthesizes.These synthetic technologys are conventional, and obtained each liquid-crystal compounds meets electrical type compound mark after tested Accurate.About introducing target end group, ring structure and the method for conjugated group in initiation material, be documented in organic synthesis (Organic Syntheses, John Wiley&Sons, Inc), organic reaction (Organic Reactions, John Wiley&Sons, Inc), comprehensive organic synthesis In the publication such as (Comprehensive Organic Synthesis, Pergamon Press), new experimental chemistry lecture (Wan Shan Co., Ltd.).
According to the proportioning of each liquid-crystal composition of following example regulation, prepare liquid-crystal composition.The preparation of described liquid-crystal composition is according to this area Conventional method carry out, as taked the mode ratios according to the rules such as heating, ultrasound wave, suspension to be mixed to prepare.
Prepare and study the liquid-crystal composition provided in the following example.Composition and its performance parameter test that each liquid-crystal composition is shown below are tied Really.
The liquid crystal display that following embodiment is used is IPS liquid crystal display, and box thickness d=7 μm, by polariser (polaroid), electricity The part such as electrode substrate is constituted.This display device is normal white mode, and when i.e. not having voltage difference to put between row and column electrode, observer observes white Pixel color.Polarizer axes up and down on substrate is 90 degrees to each other angle.Space between two substrates is full of optical liquid crystal material.
It is the composition of reference examples liquid-crystal composition, proportioning listed by table 2 and is filled in the test result carrying out performance test between liquid crystal display two substrates, So that carrying out performance comparison with explanation liquid-crystal composition of the present invention.
Reference examples 1
Be configured to the liquid-crystal composition of reference examples 1 by each compound listed in table 2 and percetage by weight, its be filled in liquid crystal display two substrates it Between carry out performance test, test data are as shown in the table:
Table 2 liquid crystal combination composition formula and test performance thereof
Embodiment 1
Be configured to the liquid-crystal composition of embodiment 1 by each compound listed in table 3 and percetage by weight, its be filled in liquid crystal display two substrates it Between carry out performance test, test data are as shown in the table:
Table 3 liquid crystal combination composition formula and test performance thereof
Liquid-crystal composition liquid crystal phase temperature range described in embodiment 1 is 69 DEG C, and compared with the compositions of comparative example 1, liquid crystalline phase scope has widened 38 DEG C, And there is relatively low driving voltage, and achieving extraordinary technique effect, liquid-crystal composition described in embodiment 1 is applicable to USH pattern.
Embodiment 2
Be configured to the liquid-crystal composition of embodiment 2 by each compound listed in table 4 and percetage by weight, its be filled in liquid crystal display two substrates it Between carry out performance test, test data are as shown in the table:
Table 4 liquid crystal combination composition formula and test performance thereof
Liquid-crystal composition liquid crystal phase temperature range described in embodiment 2 is 77 DEG C, and compared with the compositions of comparative example 1, liquid crystalline phase scope has widened 46 DEG C, And there is relatively low driving voltage, and achieving extraordinary technique effect, liquid-crystal composition described in embodiment 2 is applicable to USH pattern.
Embodiment 3
Be configured to the liquid-crystal composition of embodiment 3 by each compound listed in table 5 and percetage by weight, its be filled in liquid crystal display two substrates it Between carry out performance test, test data are as shown in the table:
Table 5 liquid crystal combination composition formula and test performance thereof
Liquid-crystal composition liquid crystal phase temperature range described in embodiment 3 is 79 DEG C, and compared with the compositions of comparative example 1, liquid crystalline phase scope has widened 48 DEG C, And there is relatively low driving voltage, and achieving extraordinary technique effect, liquid-crystal composition described in embodiment 3 is applicable to USH pattern.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, although the present invention is preferably to implement Example is disclosed above, but is not limited to the present invention, any those skilled in the art, in the range of without departing from technical solution of the present invention, When the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, as long as being without departing from the technology of the present invention side Case content, any simple modification, equivalent variations and modification above example made according to the technical spirit of the present invention, all still fall within skill of the present invention In the range of art scheme.

Claims (16)

1. a liquid crystal media, described liquid crystal media comprises:
The group of the compound composition of at least one formula I and/or formula II:
At least one general formulae IV-1 and/or IV-2 compound composition group:
And
The group of the compound composition of at least one formula V-1 and/or V-2:
Wherein,
Described Y1And Y2Identical or different, the most independent straight chained alkyl representing 1-12 carbon atom, wherein one or more non-conterminous-CH2- Can be replaced by-O-；
Described R5、R6And R7Identical or different, the most independent represents the alkyl of 1-12 carbon atom, the thiazolinyl of 2-12 carbon atom, 1-12 The alkoxyl of individual carbon atom or the alkenyloxy group of 2-12 carbon atom；
X4Represent-F ,-CN ,-CF3、-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described ringRingRingRingIdentical or different, table independently of one another ShowWherein,In one or more hydrogen atoms are optional is replaced by fluorine atoms；
Described ringRingRingIdentical or different, represent independently of one anotherOrWherein,In one or more hydrogen atoms are optional is replaced by fluorine atoms；
Described Z3Represent singly-bound ,-CH2CH2-、-CF2O-、-CH2O-、-COO-；
Described L11、L12、L13And L14Identical or different, the most independent expression H or F；
Described n represents the positive integer of 5,7,9,11 or 13；
Described m represents the positive integer of 3,5,7,9 or 11.
Liquid crystal media the most according to claim 1, it is characterised in that the compound of described formula I comprises the change of at least one formula I-1 Compound:
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 1-12 carbon atom；
Described L1、L2、L3、L4、L5、L6、L7、L8、L9And L10Identical or different, the most independent expression H or F；
Described n represents the positive integer of 5,7,9,11 or 13.
Liquid crystal media the most according to claim 1, it is characterised in that the group of the compound composition of described formula I and/or formula II accounts for described Liquid crystal media weight 10-90%, described general formulae IV-1 and/or IV-2 compound composition group account for described liquid crystal media weight 1-50%；Described formula The group of the compound composition of V-1 and/or V-2 accounts for described liquid crystal media weight 1-50%.
4. a liquid crystal media, described liquid crystal media comprises:
One or more in the group of the compound composition of at least one formula I-1,
At least one formula I-2 and/or I-3 compound composition group in one or more,
One or more in the group of the compound composition of at least one formula II-1, II-2 and/or II-3,
At least one general formulae IV-1 and/or IV-2 compound composition group:
And
The group of the compound composition of at least one formula V-1 and/or V-2:
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 1-12 carbon atom；
Described R5、R6And R7Identical or different, the most independent represents the alkyl of 1-12 carbon atom, the thiazolinyl of 2-12 carbon atom, 1-12 The alkoxyl of individual carbon atom or the alkenyloxy group of 2-12 carbon atom；
Described X1、X2And X3Identical or different, the most independent expression-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
X4Represent-F ,-CN ,-CF3、-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described ringRingRingIdentical or different, represent independently of one anotherOrWherein,In one or more hydrogen atoms are optional is replaced by fluorine atoms；
Described Z3Represent singly-bound ,-CH2CH2-、-CF2O-、-CH2O-or-COO-；
Described L1、L2、L3、L4、L5、L6、L7、L8、L9And L10Identical or different, the most independent expression H or F；
Described L11、L12、L13And L14Identical or different, the most independent expression H or F；
Described n represents the positive integer of 5,7,9,11 or 13；
Described m represents the positive integer of 3,5,7,9 or 11.
Liquid crystal media the most according to claim 4, it is characterised in that the group of the compound composition of described formula I-1 accounts for described liquid crystal media Weight 10-90%；Described formula I-2 and/or I-3 compound composition group account for described liquid crystal media weight 10-90%；Described formula II-1, II -2 and/or II-3 compound composition group account for described liquid crystal media weight 10-90%；Described general formulae IV-1 and/or IV-2 compound composition group account for Described liquid crystal media weight 3-30%；The group of the compound composition of described formula V-1 and/or V-2 accounts for described liquid crystal media weight 3-30%.
6. according to the liquid crystal media described in claim 2 or 4, it is characterised in that the compound of described formula I-1 is selected from formula I-1-1 to I-1-7 In one or more:
And
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 1-12 carbon atom；
Described n represents the positive integer of 5,7,9,11 or 13.
Liquid crystal media the most according to claim 4, it is characterised in that the compound of described formula I-2 is selected from formula I-2-1 to I-2-9 In one or more:
And
Wherein,
Described R1Represent the straight chained alkyl of 3-12 carbon atom；
Described X1Represent-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described n represents the positive integer of 5,7,9,11 or 13.
Liquid crystal media the most according to claim 4, it is characterised in that the compound of described formula I-3 is selected from formula I-3-1 to I-3-9 In one or more:
And
Wherein,
Described X2And X3Identical or different, the most independent expression-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described n represents the positive integer of 5,7,9,11 or 13.
Liquid crystal media the most according to claim 4, it is characterised in that the compound of described formula II-1 is selected from formula II-1-1 to II-1-7 In one or more:
And
Wherein,
Described R1And R2Identical or different, the most independent straight chained alkyl representing 3-12 carbon atom；
Described m represents the positive integer of 3,5,7,9 or 11.
Liquid crystal media the most according to claim 4, it is characterised in that the compound of described formula II-2 is selected from formula II-2-1 to II-2-9 In one or more:
And
Wherein,
Described R1Represent the straight chained alkyl of 3-12 carbon atom；
Described X1Represent-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described m represents the positive integer of 3,5,7,9 or 11.
11. liquid crystal medias according to claim 4, it is characterised in that the compound of described formula II-3 is selected from formula II-3-1 to II-3-9 In one or more:
And
Wherein,
Described X2And X3Identical or different, the most independent expression-F ,-CN ,-OCF3,-OCF=CF2、-OCF2CF=CF2；
Described m represents the positive integer of 3,5,7,9 or 11.
12. according to the liquid crystal media described in claim 1 or 4, it is characterised in that the compound of general formulae IV-1 is selected from general formulae IV-1-1 to IV-1-2 In one or more:
And
Wherein,
Described R5And R6Identical or different, the most independent represents the alkyl of 1-5 carbon atom, the thiazolinyl of 2-5 carbon atom, 1-5 carbon atom Alkoxyl or the alkenyloxy group of 2-5 carbon atom,
One or more in general formulae IV-2-1 to IV-2-2 of the compound of general formulae IV-2:
And
Wherein,
Described R5And R6Identical or different, the most independent represents the alkyl of 1-5 carbon atom, the thiazolinyl of 2-5 carbon atom, 1-5 carbon atom Alkoxyl or the alkenyloxy group of 2-5 carbon atom.
13. according to the liquid crystal media described in claim 1 or 4, it is characterised in that the compound of formula V-1 is selected from formula V-1-1 to V-1-8 In one or more:
And
Wherein,
Described R7Represent the alkyl of 1-5 carbon atom, the thiazolinyl of 2-5 carbon atom, the alkoxyl of 1-5 carbon atom or the alkene oxygen of 2-5 carbon atom Base,
One or more in formula V-2-1 to V-2-3 of the compound of formula V-2:
And
Wherein,
Described R7Represent the alkyl of 1-5 carbon atom, the thiazolinyl of 2-5 carbon atom, the alkoxyl of 1-5 carbon atom or the alkene oxygen of 2-5 carbon atom Base.
14. according to the liquid crystal media according to any one of claim 1-13, it is characterised in that described liquid crystal media comprises:
Account for the compounds I-1-2 of described liquid crystal media gross weight 9%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 7%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 6%；
Account for the compounds I-1-2 of described liquid crystal media gross weight 7%；
Account for the compounds I-3-2 of described liquid crystal media gross weight 8%；
Account for the compounds I-3-9 of described liquid crystal media gross weight 4%；
Account for the compounds I-2-4 of described liquid crystal media gross weight 13%；
Account for the compounds I-3-5 of described liquid crystal media gross weight 9%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 8%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 8%；
Account for the compound ii-3-5 of described liquid crystal media gross weight 4%；
Account for the compounds Ⅳ-2-2 of described liquid crystal media gross weight 6%；
Account for the compounds Ⅳ-1-1 of described liquid crystal media gross weight 5%；And
Account for the compound V-1-2 of described liquid crystal media gross weight 3%；
Or, described liquid crystal group medium comprises:
Account for the compounds I-1-2 of described liquid crystal media gross weight 5%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 4%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 5%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 7%；
Account for the compounds I-1-2 of described liquid crystal media gross weight 4%；
Account for the compounds I-1-2 of described liquid crystal media gross weight 4%；
Account for the compounds I-3-2 of described liquid crystal media gross weight 8%；
Account for the compounds I-3-9 of described liquid crystal media gross weight 3%；；
Account for the compounds I-3-5 of described liquid crystal media gross weight 4%；
Account for the compounds I-3-5 of described liquid crystal media gross weight 8%；
Account for the compounds I-3-9 of described liquid crystal media gross weight 7%；；
Account for the compound ii-1-2 of described liquid crystal media gross weight 2%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 5%；
Account for the compound ii-3-2 of described liquid crystal media gross weight 7%；
Account for the compound ii-3-5 of described liquid crystal media gross weight 2%；
Account for the compound ii-3-4 of described liquid crystal media gross weight 5%；
Account for the compounds Ⅳ-2-2 of described liquid crystal media gross weight 7%；
Account for the compounds Ⅳ-1-1 of described liquid crystal media gross weight 5%；
Account for the compound V-1-2 of described liquid crystal media gross weight 3%；And
Account for the compound V-1-6 of described liquid crystal media gross weight 5%；
Or, described liquid crystal group medium comprises:
Account for the compound ii-3-2 of described liquid crystal media gross weight 5%；
Account for the compounds I-2-2 of described liquid crystal media gross weight 15%；
Account for the compound ii-3-10 of described liquid crystal media gross weight 5%；
Account for the compound ii-3-11 of described liquid crystal media gross weight 8%；
Account for the compound ii-3-12 of described liquid crystal media gross weight 8%；
Account for the compounds I-1-2 of described liquid crystal media gross weight 4%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 4%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 4%；
Account for the compound ii-1-2 of described liquid crystal media gross weight 4%；
Account for the compounds I-1-1 of described liquid crystal media gross weight 4%；
Account for the compounds Ⅳ-2-2 of described liquid crystal media gross weight 10%；
Account for the compounds Ⅳ-2-1 of described liquid crystal media gross weight 8%；
Account for the compounds Ⅳ-1-2 of described liquid crystal media gross weight 8%；
Account for the compound V-1-8 of described liquid crystal media gross weight 10%；And
Account for the compound V-2-3 of described liquid crystal media gross weight 3%.
The liquid crystal display device of 15. 1 kinds of liquid crystal medias comprised according to any one of claim 1-13.
16. liquid crystal display devices according to claim 15, it is characterised in that described liquid crystal display device uses USH pattern.
CN201510307199.7A 2015-06-04 2015-06-04 Liquid crystal media and its application Active CN106281355B (en)

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