CN108624335A - A kind of liquid crystal material and its application - Google Patents

A kind of liquid crystal material and its application Download PDF

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Publication number
CN108624335A
CN108624335A CN201710154023.1A CN201710154023A CN108624335A CN 108624335 A CN108624335 A CN 108624335A CN 201710154023 A CN201710154023 A CN 201710154023A CN 108624335 A CN108624335 A CN 108624335A
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general formula
compound representated
parts
liquid crystal
crystal material
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CN108624335B (en
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未欣
王杰
陈海光
储士红
陈卯先
姜天孟
郭云鹏
袁瑾
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Beijing Bayi Space LCD Technology Co Ltd
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Beijing Bayi Space LCD Technology Co Ltd
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    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
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    • C09K2019/181—Ph-C≡C-Ph
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    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/14—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
    • C09K19/18—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon triple bonds, e.g. tolans
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    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
    • C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
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    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
    • C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
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    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
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    • C09K2019/3083—Cy-Ph-COO-Ph

Abstract

The present invention relates to a kind of liquid crystal materials, by weight, include the ingredient of following parts by weight：Compound representated by 1~85 part of general formula I, compound representated by 1~70 part of general formula II, compound representated by 0~30 part of general formula III, compound representated by 0~40 part of general formula IV, compound representated by 0~30 part of general formula V, compound representated by 0~30 part of general formula VI, the compound representated by 0~30 part of general formula VII, the compound representated by 0~30 part of general formula VIII.Liquid crystal material optical anisotropy of the present invention is larger, and clearing point is very high, and cryogenic property is good, and with preferable ON state transmitance, polymer intersolubility and relatively stable ON state gray scale, viscosity is in 100mm2/ s or more is suitble to industrialized production, and keeps yield that is higher and stablizing, while benefiting from scale effect, and application range is expanded significantly.Liquid crystal material provided by the invention can be used for preparing light-transmissive film and display, have broad application prospects.

Description

A kind of liquid crystal material and its application
Technical field
The present invention relates to Material Field, more particularly to a kind of liquid crystal material and its application.
Background technology
Light modulation film is a kind of novel utilization polymer dispersed liquid crystals (Polymer Dispersed Liquid Crystal, PDLC) technology reaches the new material for adjusting light percent of pass, and it is a kind of compound liquid-crystal material with special photoelectric properties Material.After its principle is small molecule liquid crystal material and mixed with polymers, polymer is separated under external influence, liquid crystal molecule It scatter to form light modulation film or dimming glass with display or light modulation effect from mixture.The initiation conditions master of the prior art To be that thermal initiation and ultraviolet light (UV) cause.
Light modulation film direction of the director of liquid crystal in no external electric field, different droplets is random, thus is dimmed Film is showed to the strong scattering process of light, and milky is presented；If applying certain electric field, it is sufficient to all liquid crystal droplets be made to be directed toward Arrow and field parallel, if the ordinary refraction index of liquid crystal is consistent with refractive index polymer, light modulation film shows pellucidity.It should Type light modulation film and conventional liquid crystal are simple in structure there are many different, polarizing film IC modules are not needed, between two substrates Away from being not required to strictly control, relatively low to production environment and liquid crystal quality requirements, film thickness can be adjusted according to the big freedom in minor affairs of spacer.
Currently, light modulation film is mainly using glass or polyester film as substrate base material, and since its raw material sources is extensive, unique light The advantages that electrical property, manufacture craft is simple, and cost is relatively low is widely used in optoelectronic switch, projection screen, intelligent glass, light The fields such as grid.But that there is also operating temperature ranges in the application is smaller for current light modulation film, screening effect is poor, driving voltage is inclined The deficiencies of high, easy cracking degumming, its application is made to be restricted.
Many deficiencies existing for existing light modulation film liquid crystal material, such as mist degree is relatively low, operating temperature range is small, industrial life Produce low, unstable working condition of viscosity etc..
Invention content
The object of the present invention is to provide a kind of liquid crystal material and its application, the liquid crystal material is particularly suitable for wide temperature range type Light modulation film.
In order to achieve the above objectives, the present invention specifically adopts the following technical scheme that：
A kind of liquid crystal material, by weight, including the compound representated by 1~85 part of general formula I, 1~70 part of general formula II Representative compound, the compound representated by 0~30 part of general formula III, the compound representated by 0~40 part of general formula IV, 0~30 Compound representated by part general formula V, the compound representated by 0~30 part of general formula VI, the chemical combination representated by 0~30 part of general formula VII Object, the compound representated by 0~30 part of general formula VIII；
The structure of the general formula I- general formulas VIII is as follows：
In the general formula I~general formula VIII, R1~R12The mutually independent alkyl or alcoxyl for indicating 1~8 C atom Base；L1、L2、L3、L4Mutually independent expression-H or-F；The mutually independent expression 1,4- phenylenes of ring A, ring B, ring C or 1,4- rings Hexyl；M, n is mutually independent represents 0 or 1.
In liquid crystal material provided by the invention, 30~50 parts of the compound, 40~65 parts, 30 that general formula I represents are preferably comprised ~60 parts, 30~42 parts, 30~40 parts, 50~60 parts or 40~46 parts.In practical applications, each in the preferably described liquid crystal material The sum of ingredients weight parts are 100 parts.
Compound representated by general formula I of the present invention be preferably one kind in following general formula I-a~I-c compounds represented or It is several：
In the general formula I-a~I-c, R1Indicate the alkyl of 2~8 C atoms；R2Indicate 1~8 C atom alkyl or Alkoxy；L1、L2Mutually independent expression-H or-F.
Preferably, in the general formula I-a, R1Indicate the alkyl of 2~5 C atoms；R2Indicate 1~5 C atom alkyl or Alkoxy.
Preferably, in the general formula I-b, R1Indicate the alkyl of 2~5 C atoms；R2Indicate 1~5 C atom alkyl or Alkoxy.
Preferably, in the general formula I-c, R1Indicate the alkyl of 2~5 C atoms；R2Indicate 1~5 C atom alkyl or Alkoxy；L1、L2It is-F simultaneously.
As the further preferred embodiment of the present invention, the one kind of compound in following compounds representated by general formula I Or it is several：
In liquid crystal material provided by the invention, 24~40 parts of the compound, 30~50 parts, 20 that general formula II represents are preferably comprised ~50 parts, 26~35 parts, 16~45 parts, 18~30 parts or 24~38 parts.In practical applications, each in the preferably described liquid crystal material The sum of ingredients weight parts are 100 parts.
Compound representated by general formula II of the present invention is preferably one in following general formula II-a~II-c compounds represented Kind is several：
In the general formula II-a~II-c, R3Indicate the alkyl of 2~8 C atoms；L3、L4Mutually independent expression-H or- F。
Preferably, in the general formula II-a~II-c, R3Indicate the alkyl of 2~5 C atoms；L3、L4It is-F.
As the further preferred embodiment of the present invention, the one kind of compound in following compounds representated by general formula II Or it is several：
In liquid crystal material provided by the invention, 5~30 parts of the compound of general formula III representative is preferably comprised.In practical application In, the sum of each component parts by weight are 100 parts in the preferably described liquid crystal material.
In compound representated by general formula III of the present invention, preferably R4Represent the alkyl of 2~8 C atoms.
As the further preferred embodiment of the present invention, compound representated by general formula III in following compounds one Kind is several：
In liquid crystal material provided by the invention, 20~34 parts of the compound of Formula IVIV is preferably comprised.In practical application In, the sum of each component parts by weight are 100 parts in the preferably described liquid crystal material.
In compound representated by general formula IV of the present invention, preferably R5Indicate the alkyl or alkoxy of 1~8 C atom.
As the further preferred embodiment of the present invention, the one kind of compound in following compounds representated by general formula IV Or it is several：
In liquid crystal material provided by the invention, 5~10 parts or 10~20 parts of the compound that general formula V is represented is preferably comprised. In practical application, the sum of each component parts by weight are 100 parts in the preferably described liquid crystal material.
In compound representated by general formula V of the present invention, preferably R6Indicate the alkyl of 2~8 C atoms.
As the further preferred embodiment of the present invention, the one kind of compound in following compounds representated by general formula V Or it is several：
In liquid crystal material provided by the invention, preferably comprise 10~28 parts, 10~16 parts of compound that general formula VI is represented or 12~24 parts.In practical applications, the sum of each component parts by weight are 100 parts in the preferably described liquid crystal material.
Compound representated by general formula IV of the present invention is preferably one kind in following general formula VI-a, VI-b compound represented Or it is several：
In described general formula VI-a, VI-b, R7Indicate the alkyl of 2~8 C atoms, the alkyl of preferably 2~5 C atoms；
R8Indicate the alkyl or alkoxy of 1~8 C atom, the alkyl or 1~5 C atom of preferably 2~5 C atoms Alkoxy.
As the further preferred embodiment of the present invention, the one kind of compound in following compounds representated by general formula VI Or it is several：
In liquid crystal material provided by the invention, 6~10 parts of the compound that general formula VII is represented is preferably comprised.In practical application In, the sum of each component parts by weight are 100 parts in the preferably described liquid crystal material.
In compound representated by general formula VII of the present invention, preferably R9、R10The mutually independent alkane for indicating 2~8 C atoms Base more preferably indicates the alkyl of 2~5 C atoms.
As the further preferred embodiment of the present invention, compound representated by general formula VII in following compounds one Kind is several：
In liquid crystal material provided by the invention, 2~16 parts of the compound that general formula VIII is represented is preferably comprised, more preferably 5 ~10 parts, 6~15 parts, 4~10 parts, 5~10 parts or 6~10 parts.In practical applications, each component in the preferably described liquid crystal material The sum of parts by weight are 100 parts.
In compound representated by general formula VIII of the present invention, preferably R11、R12Mutually independent 2~8 C atoms of expression Alkyl more preferably indicates the alkyl of 2~5 C atoms.
As the further preferred embodiment of the present invention, compound representated by general formula VIII in following compounds one Kind is several：
In order to ensure realizing synergistic effect between each component, the resultant effect of the liquid crystal material is improved, the present invention is into one It walks and the dosage of the middle each component of the liquid crystal material is carried out preferably.
As a preferred embodiment of the present invention, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 20~70 parts of one or more general formula I；
2) compound representated by 10~60 parts of one or more general formula II；
3) compound representated by 0~30 part of one or more general formula IIIs；
4) compound representated by 0~38 part of one or more general formula IV；
5) compound representated by 0~20 part of one or more general formula V；
6) compound representated by 0~28 part of one or more general formulas VI；
7) compound representated by 0~20 part of one or more general formulas VII；
8) compound representated by 0~20 part of one or more general formulas VIII.
It is furthermore preferred that the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 30~50 parts of one or more general formula I；
2) compound representated by 24~40 parts of one or more general formula II；
3) compound representated by 10~28 parts of one or more general formula VI；
4) compound representated by 2~16 parts of one or more general formula VIII.
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 40~65 parts of one or more general formula I；
2) compound representated by 30~50 parts of one or more general formula II；
3) compound representated by 5~10 parts of one or more general formula VIII.
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 30~60 parts of one or more general formula I；
2) compound representated by 20~50 parts of one or more general formula II；
3) compound representated by 5~10 parts of one or more general formula V；
4) compound representated by 6~15 parts of one or more general formula VIII.
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 30~42 parts of one or more general formula I；
2) compound representated by 26~35 parts of one or more general formula II；
3) compound representated by 5~30 parts of one or more general formula IIIs；
4) compound representated by 10~20 parts of one or more general formula V；
5) compound representated by 4~10 parts of one or more general formula VIII.
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 30~40 parts of one or more general formula I；
2) compound representated by 16~45 parts of one or more general formula II；
3) compound representated by 20~34 parts of one or more general formula IV；
4) compound representated by 5~10 parts of one or more general formula VIII.
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 50~60 parts of one or more general formula I；
2) compound representated by 18~30 parts of one or more general formula II；
3) compound representated by 10~16 parts of one or more general formula VI；
4) compound representated by 6~10 parts of one or more general formula VII.
Most preferably, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 40~46 parts of one or more general formula I；
2) compound representated by 24~38 parts of one or more general formula II；
3) compound representated by 12~24 parts of one or more general formula VI；
4) compound representated by 6~10 parts of one or more general formula VIII.
In liquid crystal material of the present invention, preferably the sum of each component parts by weight are 100 parts.
Liquid crystal material of the present invention can be prepared according to the preparation method of this field routine.Meanwhile it is of the present invention Liquid crystal material optical anisotropy is larger, generally all 0.20 or more, ensures that light modulation film has fine OFF state mist degree；The liquid crystal material Expect that clearing point is very high, substantially at 110 DEG C or more, and cryogenic property is good, so ensureing that it has wider working range (- 10 ℃-105℃)；In addition liquid crystal material of the present invention also have preferable ON state transmitance, preferable polymer intersolubility, Relatively stable ON state gray scale；The liquid crystal material viscosity is in 100mm2/ s or more is suitble to industrialized production, and keeps higher With stable yield, while scale effect is benefited from, application range is expanded significantly.
Technical scheme of the present invention further includes the light modulation film prepared using liquid crystal material of the present invention.The light modulation film Structure can be as shown in Figure 1；The light modulation film includes from top to bottom upper substrate base material, upper substrate conductive layer, spacer, lower substrate Conductive layer and lower substrate base material, wherein upper substrate base material and upper substrate conductive layer constitute upper substrate, lower substrate conductive layer and lower base Plate base material constitutes lower substrate.
Technological means commonly used in the art may be used in the preparation method of light modulation film, and the present invention does not repeat this.
Liquid crystal material provided by the invention can be used for preparing display.Specifically, light modulation is made in the liquid crystal material After film, large area display can be made by splicing.Present light modulation film is mainly used in glass-film wall, smart home, office field , in addition there has been the successful example applied to automotive window in the large size public arena such as institute, cinema, it is contemplated that is dimmed in the following PDLC The application of film can spread all over various occasions, be brought convenience for people's Working Life and pleasant.
Description of the drawings
Fig. 1 is light modulation film sectional structure chart；Wherein, 1, upper substrate base material；2, upper substrate conductive layer；3, spacer；4, under Substrate conductive layer；5, lower substrate base material.
Fig. 2 is temperature-mist degree line of the light modulation film made using the liquid crystal material of embodiment 1, wherein abscissa is temperature (T), ordinate is mist degree (%).
Specific implementation mode
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Liquid crystal monomer raw material used in the present invention is that Beijing Bayi Space LCD Materials Technology Co., Ltd. provides.
The preparation of liquid-crystal composition is all made of following method in the embodiment of the present invention：
The preparation of uniform liquid crystal weighs liquid by weight percentage with balance first using the thermal solution retorting process generally used in the industry Brilliant compound is usually claimed with the sequence of liquid-crystal compounds fusing point from high to low successively wherein weighing addition sequence without particular requirement Amount mixing, heating stirring makes each component dissolving, is uniformly mixed at 60-90 DEG C, using filter, degassing, finally encapsulates to obtain the final product Target sample.
Unless otherwise indicated, percentage is weight percentage in context, and all temperature are degree Celsius to provide.Under use State abbreviation：
△ n are optical anisotropy (20 DEG C), and Δ ε is dielectric anisotropy (25 DEG C, 1kHz), and η is bulk viscosity (mm2/ S, 20 DEG C), Cp is the clearing point (DEG C) of liquid-crystal composition.
Embodiment 1
Liquid crystal material component and formula described in the present embodiment are shown in Table 1.
Table 1：1 component of embodiment
Component Content (g) Performance parameter Parameter value
I-c2 20 Δn 0.244
I-c10 10 Δε 11.3
I-c14 10 η 102
I-b6 6 Cp 139
II-a2 8
II-c1 4
II-c2 4
II-c3 4
II-c4 4
Ⅵ-b14 12
Ⅵ-a8 12
Ⅷ-6 3
Ⅷ-10 3
Embodiment 2
Liquid crystal material component and formula described in the present embodiment are shown in Table 2.
Table 2：2 component of embodiment
Component Content (g) Performance parameter Parameter value
I-c2 20 Δn 0.242
I-c10 10 Δε 19.3
I-c14 10 η 105
II-a2 10 Cp 142
II-a3 12
II-c1 4
II-c2 4
II-c3 4
II-c4 4
Ⅵ-a8 12
Ⅷ-6 5
Ⅷ-10 5
Embodiment 3
Liquid crystal material component and formula described in the present embodiment are shown in Table 3.
Table 3：3 component of embodiment
Embodiment 4
Liquid crystal material component and formula described in the present embodiment are shown in Table 4.
Table 4：4 component of embodiment
Component Content (g) Performance parameter Parameter value
Ⅰ-c2 20 Δn 0.240
Ⅰ-c10 10 Δε 10.8
Ⅱ-a2 6 η 103
Ⅱ-a3 6 Cp 120
II-c1 7
II-c2 7
II-c3 7
II-c4 7
Ⅵ-a8 14
Ⅵ-b14 14
Ⅷ-6 2
Embodiment 5
Liquid crystal material component and formula described in the present embodiment are shown in Table 5.
Table 5：5 component of embodiment
Embodiment 6
Liquid crystal material component and formula described in the present embodiment are shown in Table 6.
Table 6：6 component of embodiment
Component Content (g) Performance parameter Parameter value
Ⅰ-c2 22 Δn 0.267
Ⅰ-c10 15 Δε 25.2
Ⅰ-c14 13 η 106
Ⅱ-a2 10 Cp 142
Ⅱ-a3 11
Ⅱ-a4 11
Ⅱ-c1 4
Ⅱ-c2 4
Ⅷ-6 5
Ⅷ-10 5
Embodiment 7
Liquid crystal material component and formula described in the present embodiment are shown in Table 7.
Table 7：7 component of embodiment
Embodiment 8
Liquid crystal material component and formula described in the present embodiment are shown in Table 8.
Table 8：8 component of embodiment
Component Content (g) Performance parameter Parameter value
Ⅰ-c2 22 Δn 0.280
Ⅰ-c10 17 Δε 26.4
Ⅰ-c14 15 η 100
Ⅰ-b6 6 Cp 138
Ⅰ-b8 5
Ⅱ-a2 10
Ⅱ-a3 10
Ⅱ-a4 10
Ⅷ-6 3
Ⅷ-10 2
Embodiment 9
Liquid crystal material component and formula described in the present embodiment are shown in Table 9.
Table 9：9 component of embodiment
Embodiment 10
Liquid crystal material component and formula described in the present embodiment are shown in Table 10.
Table 10：10 component of embodiment
Component Content (g) Performance parameter Parameter value
Ⅰ-c2 20 Δn 0.238
Ⅰ-c10 10 Δε 32.2
Ⅱ-a2 10 η 119
Ⅱ-a3 10 Cp 128
Ⅱ-b1 8
Ⅱ-b2 8
Ⅱ-c1 3
Ⅱ-c2 4
Ⅱ-c3 3
Ⅱ-c4 4
Ⅴ-4 10
Ⅷ-6 5
Ⅷ-10 5
Embodiment 11
Liquid crystal material component and formula described in the present embodiment are shown in Table 11.
Table 11：11 component of embodiment
Component Content (g) Performance parameter Parameter value
Ⅰ-c2 20 Δn 0.273
Ⅰ-c10 20 Δε 16.7
Ⅰ-c14 10 η 105
I-a1 10 Cp 141
Ⅱ-a3 10
Ⅱ-b1 5
Ⅱ-b2 5
Ⅴ-4 5
Ⅷ-6 5
Ⅷ-10 5
Ⅷ-14 5
Embodiment 12
Liquid crystal material component and formula described in the present embodiment are shown in Table 12.
Table 12：12 component of embodiment
Embodiment 13
Liquid crystal material component and formula described in the present embodiment are shown in Table 13.
Table 13：13 component of embodiment
Component Content (g) Performance parameter Parameter value
Ⅰ-c2 20 Δn 0.220
Ⅰ-c10 10 Δε 26.2
Ⅱ-b1 5 η 114
Ⅱ-b2 6 Cp 120
Ⅱ-c1 7
Ⅱ-c2 8
III-2 15
III-1 15
Ⅴ-4 10
Ⅷ-6 4
Embodiment 14
Liquid crystal material component and formula described in the present embodiment are shown in Table 14.
Table 14：14 component of embodiment
Embodiment 15
Liquid crystal material component and formula described in the present embodiment are shown in Table 15.
Table 15：15 component of embodiment
Component Content (g) Performance parameter Parameter value
Ⅰ-c2 20 Δn 0.259
Ⅰ-c10 10 Δε 29.1
Ⅰ-c14 10 η 106
Ⅱ-c1 4 Cp 139
Ⅱ-c2 4
Ⅱ-c3 4
Ⅱ-c4 4
Ⅳ-a4 34
Ⅷ-6 5
Ⅷ-10 5
Embodiment 16
Liquid crystal material component and formula described in the present embodiment are shown in Table 16.
Table 16：16 component of embodiment
Embodiment 17
Liquid crystal material component and formula described in the present embodiment are shown in Table 17.
Table 17：17 component of embodiment
Component Content (g) Performance parameter Parameter value
Ⅰ-a1 7 Δn 0.246
Ⅰ-a6 6 Δε 8.9
Ⅰ-a7 7 η 103
Ⅰ-b22 10 Cp 115
Ⅰ-c2 16
Ⅰ-c10 14
Ⅱ-a3 8
Ⅱ-c2 5
Ⅱ-c3 5
Ⅵ-b13 8
Ⅵ-b14 8
Ⅶ-14 6
Embodiment 18
Liquid crystal material component and formula described in the present embodiment are shown in Table 18.
Table 18：18 component of embodiment
Embodiment 19
A kind of light modulation film is present embodiments provided, the liquid crystal material provided using embodiment 1 is raw material, conventionally It is prepared.The planing surface structure of the light modulation film is as shown in Figure 1, be from top to bottom followed successively by：Upper substrate base material 1, upper substrate are conductive Layer 2, spacer 3, lower substrate conductive layer 4, lower substrate base material 5.
Experimental example
Temperature performance test is carried out to the light modulation film that embodiment 19 provides, as shown in Fig. 2 (temperature performance curve).
From the data in Fig. 2 can be seen that light modulation film mist degree with temperature performance change it is smaller, be increased to 80 DEG C of ability in temperature Start apparent mist degree decline occur, but still have higher mist degree up to being increased to nearly 100 DEG C of light modulation films, shows preferable Temperature performance and wider operating temperature range can fit it can thus be concluded that the liquid crystal material of embodiment 1 has good temperature performance Answer the application under wide temperature environment；There is suitable viscosity to be suitble to large-scale production simultaneously, therefore liquid crystal material of the present invention has extensively Wealthy commercial promise.
Although above the present invention is described in detail with a general description of the specific embodiments, On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause This, 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 liquid crystal material, which is characterized in that by weight, include the ingredient of following parts by weight：1~85 part of general formula I institute The compound of representative, the compound representated by 1~70 part of general formula II, the compound representated by 0~30 part of general formula III, 0~40 part Compound representated by general formula IV, the compound representated by 0~30 part of general formula V, the compound representated by 0~30 part of general formula VI, 0 Compound representated by~30 parts of general formula VII, the compound representated by 0~30 part of general formula VIII；
The structure of the general formula I- general formulas VIII is as follows：
In the general formula I~general formula VIII, R1~R12The mutually independent alkyl or alkoxy for indicating 1~8 C atom；L1、L2、 L3、L4Mutually independent expression-H or-F；The mutually independent expression 1,4- phenylenes of ring A, ring B, ring C or 1,4- cyclohexyl；m、n It is mutually independent to represent 0 or 1；
Preferably, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 20~70 parts of one or more general formula I；
2) compound representated by 10~60 parts of one or more general formula II；
3) compound representated by 0~30 part of one or more general formula IIIs；
4) compound representated by 0~38 part of one or more general formula IV；
5) compound representated by 0~20 part of one or more general formula V；
6) compound representated by 0~28 part of one or more general formulas VI；
7) compound representated by 0~20 part of one or more general formulas VII；
8) compound representated by 0~20 part of one or more general formulas VIII；
It is highly preferred that the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 30~50 parts of one or more general formula I；
2) compound representated by 24~40 parts of one or more general formula II；
3) compound representated by 10~28 parts of one or more general formula VI；
4) compound representated by 2~16 parts of one or more general formula VIII；
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 40~65 parts of one or more general formula I；
2) compound representated by 30~50 parts of one or more general formula II；
3) compound representated by 5~10 parts of one or more general formula VIII；
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 30~60 parts of one or more general formula I；
2) compound representated by 20~50 parts of one or more general formula II；
3) compound representated by 5~10 parts of one or more general formula V；
4) compound representated by 6~15 parts of one or more general formula VIII；
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 30~42 parts of one or more general formula I；
2) compound representated by 26~35 parts of one or more general formula II；
3) compound representated by 5~30 parts of one or more general formula IIIs；
4) compound representated by 10~20 parts of one or more general formula V；
5) compound representated by 4~10 parts of one or more general formula VIII；
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 30~40 parts of one or more general formula I；
2) compound representated by 16~45 parts of one or more general formula II；
3) compound representated by 20~34 parts of one or more general formula IV；
4) compound representated by 5~10 parts of one or more general formula VIII；
Or, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 50~60 parts of one or more general formula I；
2) compound representated by 18~30 parts of one or more general formula II；
3) compound representated by 10~16 parts of one or more general formula VI；
4) compound representated by 6~10 parts of one or more general formula VII；
Most preferably, the liquid crystal material includes the ingredient of following parts by weight：
1) compound representated by 40~46 parts of one or more general formula I；
2) compound representated by 24~38 parts of one or more general formula II；
3) compound representated by 12~24 parts of one or more general formula VI；
4) compound representated by 6~10 parts of one or more general formula VIII.
2. liquid crystal material according to claim 1, which is characterized in that the compound representated by general formula I is selected from following general formula One or more of I-a~I-c compounds represented：
In the general formula I-a~I-c, R1Indicate the alkyl of 2~8 C atoms；R2Indicate the alkyl or alcoxyl of 1~8 C atom Base；L1、L2Mutually independent expression-H or-F；
Preferably, in the general formula I-a, R1Indicate the alkyl of 2~5 C atoms, R2Indicate the alkyl or alcoxyl of 1~5 C atom Base；In the general formula I-b, R1Indicate the alkyl of 2~5 C atoms, R2Indicate the alkyl or alkoxy of 1~5 C atom；It is described In general formula I-c, R1Indicate the alkyl of 2~5 C atoms, R2Indicate the alkyl or alkoxy of 1~5 C atom, L1、L2Be simultaneously- F；
It is highly preferred that the compound representated by general formula I is one or more of following compounds：
3. liquid crystal material according to claim 1 or 2, which is characterized in that the compound representated by general formula II is preferably such as One or more of lower general formula II-a~II-c compounds represented：
In the general formula II-a~II-c, R3Indicate the alkyl of 2~8 C atoms；L3、L4Mutually independent expression-H or-F；
Preferably, in the general formula II-a~II-c, R3Indicate the alkyl of 2~5 C atoms；L3、L4It is-F；
It is highly preferred that the compound representated by general formula II is selected from one or more of following compounds：
4. according to the liquid crystal material described in claims 1 to 3 any one, which is characterized in that the compound representated by general formula III In, R4Represent the alkyl of 2~8 C atoms；
Preferably, the compound representated by general formula III is selected from one or more of following compounds：
5. according to the liquid crystal material described in Claims 1 to 4 any one, which is characterized in that the compound representated by general formula IV In, R5Indicate the alkyl or alkoxy of 1~8 C atom；
Preferably, the compound representated by general formula IV is selected from one or more of following compounds：
6. according to the liquid crystal material described in Claims 1 to 5 any one, which is characterized in that the compound representated by general formula V In, R6Indicate the alkyl of 2~8 C atoms；
It is highly preferred that the compound representated by general formula V is selected from one or more of following compounds：
7. according to the liquid crystal material described in claim 1~6 any one, which is characterized in that the compound representated by general formula IV One or more of following general formula VI-a, VI-b compound represented：
In described general formula VI-a, VI-b, R7Indicate the alkyl of 2~8 C atoms, the alkyl of preferably 2~5 C atoms；R8It indicates The alkyl or alkoxy of 1~8 C atom, the alkyl of preferably 2~5 C atoms or the alkoxy of 1~5 C atom；
It is highly preferred that the compound representated by general formula VI is selected from one or more of following compounds：
8. according to the liquid crystal material described in claim 1~7 any one, which is characterized in that the compound representated by general formula VII In, R9、R10The mutually independent alkyl for indicating 2~8 C atoms, preferably indicates the alkyl of 2~5 C atoms；
It is highly preferred that the compound representated by general formula VII is selected from one or more of following compounds：
9. according to the liquid crystal material described in claim 1~8 any one, which is characterized in that the chemical combination representated by general formula VIII In object, R11、R12The mutually independent alkyl for indicating 2~8 C atoms, preferably indicates the alkyl of 2~5 C atoms；
It is highly preferred that the compound representated by general formula VIII is selected from one or more of following compounds：
10. light modulation film and/or display that liquid crystal material described in claim 1~9 any one is prepared.
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