CN102618297A - Ended alkene liquid crystal mixture - Google Patents
Ended alkene liquid crystal mixture Download PDFInfo
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- CN102618297A CN102618297A CN2012100504729A CN201210050472A CN102618297A CN 102618297 A CN102618297 A CN 102618297A CN 2012100504729 A CN2012100504729 A CN 2012100504729A CN 201210050472 A CN201210050472 A CN 201210050472A CN 102618297 A CN102618297 A CN 102618297A
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Abstract
Ended alkene liquid crystal mixture comprises (1) at least one type of compound of a formula I and/or (2) at least one type of compound of formula II and (3) compound of formula III, wherein R1 and R2 in the compound of the formula II are respectively straight-chain paraffin independently chosen from C2-C5, the mass part of the compound of formula I in the liquid crystal mixture is 0-5, the mass part of the compound of formula II in the liquid crystal mixture is 0-3, the mass part of the compound of formula III in the liquid crystal mixture is 0-3, arbitrary two types of the compound cannot be 0 at the same time. The mixture has the advantages of being low in viscosity, wide in phase change region, high in electrical resistivity, capable of meeting application requirements of thin film transistor liquid crystal display (TFT-LCD) and the like.
Description
Technical field
The invention belongs to the liquid crystal material technical field, be specifically related to the nematic liquid crystal mixture.
Background technology
Liquid-crystal display has experienced nearly 50 years development till now from being born; Present liquid-crystal display on the market mainly belongs to thin film transistor (the Thin Film Transistor of active matrix type; TFT) liquid-crystal display (Liquid Crystal Display; LCD); It has the advantage such as visual angle and high-contrast of high resolving power, broad, and the liquid-crystal display volume is little, energy consumption is low, flicker free, novel structure etc., is widely applied to a plurality of fields such as notebook computer, desktop computer indicating meter, TV, mobile phone and portable electronic device.
TFT-LCD has relatively high expectations to liquid crystal material, and traditional liquid crystal material that contains cyanic acid is difficult to meet the demands owing to resistivity is low, and therefore the fluorinated liquid crystal material can be used for TFT-LCD because the polarity of carbon-fluorine bond volume big, fluorine atom is less, resistivity is higher.
The used liquid crystal material of liquid-crystal display is liquid crystal compound; Single liquid crystal material is difficult to satisfy application requiring, through mixing the liquid crystal material of property, just can reach the requirement that shows application; But; In some special environment, require liquid-crystal display to have LV, higher response speed, wide working temperature interval (50～90 ℃), because the restriction of liquid crystal material; General liquid-crystal display is difficult to meet the demands, thereby has limited liquid-crystal display in some Application for Field.
Summary of the invention
Technical problem to be solved of the present invention is to overcome the shortcoming of above-mentioned liquid crystal material, provides a kind of LV, high-contrast, low driving voltage, the interval broad of mesomorphic phase, response speed to hold alkene class liquid crystal compound faster.
Solving the problems of the technologies described above the technical scheme that is adopted is that it comprises:
1, at least a formula I compound of 0～5 mass parts
2, at least a formula II compound of 0～5 mass parts
3, the formula III compound of 0～3 mass parts
More than compound in the component of (1)～(3), any two kinds of compounds are not 0 simultaneously.
Above-mentioned compsn Chinese style I compound is:
Above-mentioned compsn Chinese style II compound is:
The present invention also comprises at least a in following formula IV, formula V, the formula VI compound:
R in the formula
3Be the straight-chain paraffin of C2, C3, C5, R
4Be the straight-chain paraffin of C3, C5, total mass part of formula IV, formula V, formula VI compound is 3～7.The compound of formula IV has less viscosity, less optical anisotropy, adds the low-temperature performance that can effectively improve liquid crystal compound in the mixture, the optical anisotropy of adjustment liquid crystal compound.Formula V, VI compound have higher clearing point, less viscosity, less optical anisotropy, and bigger dielectric anisotropy adds in the mixture and can effectively improve clearing point, response speed, the optical anisotropy of adjustment liquid crystal compound.
The preparation method of above-mentioned end alkene class liquid crystal compound is following:
30 ℃ of raw materials that will prepare end alkene class liquid crystal compound join in the round-bottomed flask, and stirring and evenly mixing is prepared into end alkene class liquid crystal compound.
Preparation raw material of the present invention adopts the fluorinated liquid crystal material, has between LV, wide phase change zone, high-performance such as high resistivity, meets the application requiring of TFT-LCD.
Embodiment
To further explain of the present invention, but the invention is not restricted to these embodiment below in conjunction with embodiment.
Abbreviation below the parameter of measuring in following examples adopts:
Δ n: expression optical anisotropy (586nm, 20 ℃);
Vth: expression threshold voltage (V, 20 ℃);
Vsat: expression saturation voltage (V, 20 ℃);
S: represent electric aberration inducing curve steepness;
Ton: expression time of response;
The thick 5 μ m that are of used liquid crystal testing cassete box.
Embodiment 1
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 1, and each item The performance test results is seen table 1.
Raw material mass mixture ratio and each item The performance test results of table 1 embodiment 1 end alkene class liquid crystal compound
Embodiment 2
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 2, and each item The performance test results is seen table 2.
Raw material mass mixture ratio and each item The performance test results of table 2 embodiment 2 end alkene class liquid crystal compounds
Embodiment 3
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 3, and each item The performance test results is seen table 3.
Raw material mass mixture ratio and each item The performance test results of table 3 embodiment 3 end alkene class liquid crystal compounds
Embodiment 4
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 4, and each item The performance test results is seen table 4.
Raw material mass mixture ratio and each item The performance test results of table 4 embodiment 4 end alkene class liquid crystal compounds
Embodiment 5
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 5, and each item The performance test results is seen table 5.
Raw material mass mixture ratio and each item The performance test results of table 5 embodiment 5 end alkene class liquid crystal compounds
Embodiment 6
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 6, and each item The performance test results is seen table 6.
Raw material mass mixture ratio and each item The performance test results of table 6 embodiment 6 end alkene class liquid crystal compounds
Embodiment 7
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 7, and each item The performance test results is seen table 7.
Raw material mass mixture ratio and each item The performance test results of table 7 embodiment 7 end alkene class liquid crystal compounds
Embodiment 8
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 8, and each item The performance test results is seen table 8.
Raw material mass mixture ratio and each item The performance test results of table 8 embodiment 8 end alkene class liquid crystal compounds
Embodiment 9
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 9, and each item The performance test results is seen table 9.
Raw material mass mixture ratio and each item The performance test results of table 9 embodiment 9 end alkene class liquid crystal compounds
Embodiment 10
In the present embodiment, the raw material mass mixture ratio of end alkene class liquid crystal compound is as shown in table 10, and each item The performance test results is seen table 10.
Raw material mass mixture ratio and each item The performance test results of table 10 embodiment 10 end alkene class liquid crystal compounds
Claims (2)
1. hold alkene class liquid crystal compound for one kind, it is characterized in that it comprises:
At least a formula I compound of (1) 0～5 mass parts
At least a formula II compound of (2) 0～5 mass parts
R among formula I and the formula II
1Be the straight-chain paraffin of C2～C5, R
2Straight-chain paraffin for C2～C5;
The formula III compound of (3) 0～3 mass parts
More than compound in the component of (1)～(3), any two kinds of compounds are not 0 simultaneously.
2. end alkene class liquid crystal compound according to claim 1 is characterized in that said composition also comprises at least a in following formula IV, formula V, the formula VI compound:
R in the formula
3Be the straight-chain paraffin of C2, C3, C5, R
4Be the straight-chain paraffin of C3, C5, total mass part of formula IV, formula V, formula VI compound is 3～7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100504729A CN102618297A (en) | 2012-02-29 | 2012-02-29 | Ended alkene liquid crystal mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100504729A CN102618297A (en) | 2012-02-29 | 2012-02-29 | Ended alkene liquid crystal mixture |
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| CN102618297A true CN102618297A (en) | 2012-08-01 |
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| CN2012100504729A Pending CN102618297A (en) | 2012-02-29 | 2012-02-29 | Ended alkene liquid crystal mixture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327860A (en) * | 2014-11-24 | 2015-02-04 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition and liquid crystal display device comprising same |
| CN104388099A (en) * | 2014-11-24 | 2015-03-04 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition and liquid crystal display device containing liquid crystal composition |
| CN104449763A (en) * | 2014-11-24 | 2015-03-25 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition and liquid crystal display device comprising same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6174457B1 (en) * | 1996-09-27 | 2001-01-16 | Chisso Corporation | Compound having alkadienyl group as side chain, and liquid crystal composition using same |
| CN101679869A (en) * | 2007-05-17 | 2010-03-24 | Dic株式会社 | Nematic liquid crystal composition and bistable nematic liquid-crystal display |
| CN102093901A (en) * | 2010-12-17 | 2011-06-15 | 陕西师范大学 | Preparation method of 4-[2-(trans-4-alkylcyclohexyl)ethyl]-4'-butyl-3-alkenylfluoro-1,1'-biphenyl liquid crystal |
-
2012
- 2012-02-29 CN CN2012100504729A patent/CN102618297A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6174457B1 (en) * | 1996-09-27 | 2001-01-16 | Chisso Corporation | Compound having alkadienyl group as side chain, and liquid crystal composition using same |
| CN101679869A (en) * | 2007-05-17 | 2010-03-24 | Dic株式会社 | Nematic liquid crystal composition and bistable nematic liquid-crystal display |
| CN102093901A (en) * | 2010-12-17 | 2011-06-15 | 陕西师范大学 | Preparation method of 4-[2-(trans-4-alkylcyclohexyl)ethyl]-4'-butyl-3-alkenylfluoro-1,1'-biphenyl liquid crystal |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327860A (en) * | 2014-11-24 | 2015-02-04 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition and liquid crystal display device comprising same |
| CN104388099A (en) * | 2014-11-24 | 2015-03-04 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition and liquid crystal display device containing liquid crystal composition |
| CN104449763A (en) * | 2014-11-24 | 2015-03-25 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition and liquid crystal display device comprising same |
| CN104327860B (en) * | 2014-11-24 | 2016-08-17 | 石家庄诚志永华显示材料有限公司 | Liquid-crystal composition and comprise the liquid crystal display device of this liquid-crystal composition |
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Application publication date: 20120801 |