CN104629773A - Liquid crystal composition and display device thereof - Google Patents
Liquid crystal composition and display device thereof Download PDFInfo
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- CN104629773A CN104629773A CN201310544237.1A CN201310544237A CN104629773A CN 104629773 A CN104629773 A CN 104629773A CN 201310544237 A CN201310544237 A CN 201310544237A CN 104629773 A CN104629773 A CN 104629773A
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- 0 **C(CC1)CCC1c1cc(F)c(C(Oc(cc2F)cc(F)c2F)(F)F)c(F)c1F Chemical compound **C(CC1)CCC1c1cc(F)c(C(Oc(cc2F)cc(F)c2F)(F)F)c(F)c1F 0.000 description 4
- QRMPKOFEUHIBNM-UHFFFAOYSA-N CC1CCC(C)CC1 Chemical compound CC1CCC(C)CC1 QRMPKOFEUHIBNM-UHFFFAOYSA-N 0.000 description 3
- URLKBWYHVLBVBO-UHFFFAOYSA-N Cc1ccc(C)cc1 Chemical compound Cc1ccc(C)cc1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- YEJCHVFCLNKZPU-UHFFFAOYSA-N CC1COC(C)CC1 Chemical compound CC1COC(C)CC1 YEJCHVFCLNKZPU-UHFFFAOYSA-N 0.000 description 1
- RPMUDXVQHUECRE-UHFFFAOYSA-N CC1COC(C)OC1 Chemical compound CC1COC(C)OC1 RPMUDXVQHUECRE-UHFFFAOYSA-N 0.000 description 1
- JEWRVXUTAZWZAD-UHFFFAOYSA-N Cc1cc(C)c(C)c(F)c1 Chemical compound Cc1cc(C)c(C)c(F)c1 JEWRVXUTAZWZAD-UHFFFAOYSA-N 0.000 description 1
- HBXFIXSFKULBOG-UHFFFAOYSA-N Cc1cc(F)c(C)c(F)c1 Chemical compound Cc1cc(F)c(C)c(F)c1 HBXFIXSFKULBOG-UHFFFAOYSA-N 0.000 description 1
- WJAVYWPXOXAOBS-UHFFFAOYSA-N Cc1cc(F)c(C)cc1 Chemical compound Cc1cc(F)c(C)cc1 WJAVYWPXOXAOBS-UHFFFAOYSA-N 0.000 description 1
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- Liquid Crystal Substances (AREA)
Abstract
The invention provides a liquid crystal composition comprising at least one compound represented by the general formula I-1 and/or the general formula I-2; and at least one compound represented by the general formula II. The liquid crystal composition has the characteristics of suitable optical anisotropy, suitable dielectric anisotropy, relatively rapid response speed, wide operating temperature range and the like. The invention also provides a liquid crystal display device containing the liquid crystal composition.
Description
Technical field
The present invention relates to a kind of liquid-crystal composition, particularly a kind of liquid-crystal composition with suitable optical anisotropy, suitable dielectric anisotropy and response speed faster, and comprise the liquid crystal display device of this liquid-crystal composition.
Background technology
Liquid crystal material is at a certain temperature, the mobility not only with liquid but also the mixture of anisotropic organic bar-shaped micromolecular compound with crystal.Liquid crystal material is mainly used as the dielectric medium in indicating meter, and its reason is that the optical property of this kind of material changes by the voltage applied.Electrooptical devices based on liquid crystal is known in those skilled in the art, and such device is battery, DAP (aiming at the distortion of phase) battery, object/main body battery, the TN battery with twisted nematic structure, STN (super-twisted nematic) battery, SBE (super birefringence effect) cell box OMI (optical mode interference) battery with dynamic scattering.
For liquid-crystal display, possess good chemistry and thermostability, the good stability to electric field and electromagnetic radiation, the liquid crystalline cpd of suitable optical anisotropy, faster response speed and lower threshold voltage and liquid crystal media and meet current needs.Because the mixture of liquid crystal usually used as various ingredients uses, dissolving each other each other between each component, seems particularly important, and according to different battery types and Application Areas, liquid crystal must meet different requirements, as specific conductivity, dielectric anisotropy and optical anisotropy etc., but the shortcoming significantly existed in the prior art is the longer time of response, low resistivity and operating voltage is excessively high, as EP0673986, DE19528106, DE19528107.
A series of compounds up to now with liquid crystal Jie phase do not comprise the monomeric compound meeting all these aspects and require, therefore, in liquid crystal material field, need to have the novel liquid crystalline compositions improving performance.Especially, for many type useds, liquid-crystal composition must have suitable wide nematic phase range, suitable specific refractory power, dielectric anisotropy and response speed faster.
Therefore, the liquid crystal display device with suitable optical anisotropy and dielectric anisotropy, wider operating temperature range, short response time and good low temperature storage stability is still starved of.
Summary of the invention
The object of this invention is to provide a kind of liquid-crystal composition, it has suitable optical anisotropy, suitable dielectric anisotropy, wider operating temperature range and at least one faster in response speed characteristic, described liquid-crystal composition can be used in liquid crystal display device, makes this liquid crystal display device have the characteristic of response fast.
One aspect of the present invention provides a kind of liquid-crystal composition, comprises:
The compound of at least one formula I-1 and/or formula I-2
The compound of at least one general formula II
Wherein,
R
1, R
2and R
3identical or different, represent that carbonatoms is alkyl or the alkoxyl group of 1-7 independently of one another, or carbonatoms is thiazolinyl or the alkene oxygen base of 2-7;
identical or different, represent independently of one another
represent
L
1represent H or F;
X
1represent F, CN ,-OCF
3, carbonatoms be 1-5 alkyl or alkoxyl group, or carbonatoms is the thiazolinyl of 2-5.
In embodiments of the invention, preferred described R
1, R
2and R
3identical or different, represent that carbonatoms is the alkyl of 1-5 independently of one another; Described X
1represent that carbonatoms is alkyl or the alkoxyl group of 1-5, or carbonatoms is the thiazolinyl of 2-5.
Liquid-crystal composition of the present invention also comprises:
Account for the compound of one or more general formula III of described liquid-crystal composition gross weight 1-30%
Account for the compound of one or more general formulae IV of described liquid-crystal composition gross weight 0-15%
Account for the compound of one or more general formulas V of described liquid-crystal composition gross weight 1-20%
and
Account for the compound of one or more general formulas VI of described liquid-crystal composition gross weight 5-40%
Wherein,
R
4, R
5, R
6, R
7, R
8, R
9and R
10identical or different, represent that carbonatoms is alkyl or the alkoxyl group of 1-7 independently of one another, or carbonatoms is thiazolinyl or the alkene oxygen base of 2-7;
L
2and L
3identical or different, represent H or F independently of one another;
represent
X
2represent F, CN ,-OCF
3, carbonatoms be 1-5 alkyl or alkoxyl group, or carbonatoms is the thiazolinyl of 2-5;
M represents 0 or 1.
In embodiments of the invention, the compound of preferred described formula I-1 and/or formula I-2 accounts for the 5-35% of described liquid-crystal composition gross weight; The compound of described general formula II accounts for the 20-55% of described liquid-crystal composition gross weight; The compound of described general formula III accounts for the 5-30% of described liquid-crystal composition gross weight; The compound of described general formulae IV accounts for the 0-10% of described liquid-crystal composition gross weight; The compound of described general formula V accounts for the 1-15% of described liquid-crystal composition gross weight; And the compound of described general formula VI accounts for the 5-30% of described liquid-crystal composition gross weight.
In some embodiments of the present invention, the compound of described formula I-1 is selected from one or more of compound in the group be made up of following compound:
In some embodiments of the present invention, the compound of described formula I-2 is selected from one or more of compound in the group be made up of following compound:
In some embodiments of the present invention, the compound of described general formula II is selected from one or more of compound in the group be made up of following compound:
In some embodiments of the present invention, the compound of described general formula III is selected from one or more of compound in the group be made up of following compound:
In some embodiments of the present invention, the compound of described general formulae IV is selected from one or more of compound in the group be made up of following compound:
In some embodiments of the present invention, the compound of described general formula V is selected from one or more of compound in the group be made up of following compound:
In some embodiments of the present invention, the compound of described general formula VI is selected from one or more of compound in the group be made up of following compound:
Another aspect of the present invention provides a kind of liquid-crystal display, and described liquid-crystal display comprises liquid-crystal composition of the present invention.
The present invention is by carrying out combination experiment to above-claimed cpd, by with the comparison contrasted, determine the liquid crystal media comprising above-mentioned liquid-crystal composition, there is suitable optical anisotropy, suitable dielectric anisotropy and the characteristic such as response speed faster, described liquid-crystal composition can be used in liquid crystal display device, makes this liquid crystal display device have the characteristic of response fast.
In the present invention if no special instructions, described ratio is weight ratio, and all temperature are degree celsius temperature, and the box selected of the test of described response time data is thick is 7 μm.
Embodiment
Below with reference to specific embodiments, the present invention is described.It should be noted that, the following examples are example of the present invention, are only used for the present invention is described, and are not used for limiting the present invention.When not departing from purport of the present invention or scope, other combination and the various improvement in design of the present invention can be carried out.
For ease of expressing, in following embodiment, the coded representation of unit structure listed by table 1 of liquid-crystal composition:
The unit structure code of table 1 liquid crystalline cpd
Compound for following structural formula:
This structural formula as by coded representation listed by table 2, then can be expressed as: nCPUF, and the n in code represents the C atomicity of left end alkyl, and such as n is " 3 ", namely represents that this alkyl is-C
3h
7; C in code represents cyclohexyl.
In following examples test event to write a Chinese character in simplified form code name as follows:
Cp(DEG C): clearing point (to row-isotropic phase transition temperature)
Δ n: optical anisotropy (589 nm, 20 DEG C)
Δ ε: dielectric anisotropy (1 KHz, 25 DEG C)
V
90: saturation voltage (character voltage when 90% relative contrast, normal white mode)
V
10: threshold voltage (character voltage when 10% relative contrast, normal white mode)
η: kinetic viscosity (mm
2s
-1, 25 DEG C, except as otherwise noted)
LTS: low-temperature storage time (at-30 DEG C)
Wherein, refractive anisotrop use Abbe refractometer under sodium lamp (589nm) light source, 20 DEG C test; Measurement box is TN90 type, thick 7 μm of box.
Each composition adopted below in an example, the compound of formula I-1 and formula I-2 can obtain according to the described method in CN103242860, and all the other each compounds all can be synthesized by known method, or are obtained by commercial sources.These synthetic technologys are conventional, and each liquid crystalline cpd that obtains meets electrical type compound standard after tested.
According to the proportioning of each liquid-crystal composition of following examples regulation, prepare liquid-crystal composition.The preparation of described liquid-crystal composition carries out according to the ordinary method of this area, and as taked the modes such as heating, ultrasonic wave, suspension, ratio mixing is obtained according to the rules.
Reference examples 1
Be mixed with the liquid-crystal composition of reference examples 1 by each compound listed in table 2 and weight percentage, it is filled between liquid-crystal display two substrates and carries out performance test, and test data is as shown in the table:
Table 2 liquid crystal combination composition formula and test performance thereof
Embodiment 1
Be mixed with the liquid-crystal composition of embodiment 1 by each compound listed in table 3 and weight percentage, it is filled between liquid-crystal display two substrates and carries out performance test, and test data is as shown in the table:
Table 3 liquid crystal combination composition formula and test performance thereof
Embodiment 2
Be mixed with the liquid-crystal composition of embodiment 2 by each compound listed in table 4 and weight percentage, it is filled between liquid-crystal display two substrates and carries out performance test, and test data is as shown in the table:
Table 4 liquid crystal combination composition formula and test performance thereof
Embodiment 3
Be mixed with the liquid-crystal composition of embodiment 3 by each compound listed in table 5 and weight percentage, it is filled between liquid-crystal display two substrates and carries out performance test, and test data is as shown in the table:
Table 5 liquid crystal combination composition formula and test performance thereof
Embodiment 4
Be mixed with the liquid-crystal composition of embodiment 4 by each compound listed in table 6 and weight percentage, it is filled between liquid-crystal display two substrates and carries out performance test, and test data is as shown in the table:
Table 6 liquid crystal combination composition formula and test performance thereof
With reference to reference examples 1, from the test data of above embodiment 1,2,3 and 4, liquid-crystal composition provided by the present invention has suitable optical anisotropy, suitable dielectric anisotropy, wider nematic temperature range, faster response speed, good low temperature storage stability, improve the transmitance of liquid crystal, be applicable in liquid-crystal display.
Claims (9)
1. a liquid-crystal composition, comprises:
The compound of at least one formula I-1 and/or formula I-2
The compound of at least one general formula II
Wherein,
R
1, R
2and R
3identical or different, represent that carbonatoms is alkyl or the alkoxyl group of 1-7 independently of one another, or carbonatoms is thiazolinyl or the alkene oxygen base of 2-7;
identical or different, represent independently of one another
represent
L
1represent H or F;
X
1represent F, CN ,-OCF
3, carbonatoms be 1-5 alkyl or alkoxyl group, or carbonatoms is the thiazolinyl of 2-5.
2. liquid-crystal composition according to claim 1, is characterized in that, described R
1, R
2and R
3identical or different, represent that carbonatoms is the alkyl of 1-5 independently of one another; Described X1 represents that carbonatoms is alkyl or the alkoxyl group of 1-5, or carbonatoms is the thiazolinyl of 2-5.
3. liquid-crystal composition according to claim 2, is characterized in that, described liquid-crystal composition also comprises:
Account for the compound of one or more general formula III of described liquid-crystal composition gross weight 1-30%
Account for the compound of one or more general formulae IV of described liquid-crystal composition gross weight 0-15%
Account for the compound of one or more general formulas V of described liquid-crystal composition gross weight 1-20%
and
Account for the compound of one or more general formulas VI of described liquid-crystal composition gross weight 5-40%
Wherein,
R
4, R
5, R
6, R
7, R
8, R
9and R
10identical or different, represent that carbonatoms is alkyl or the alkoxyl group of 1-7 independently of one another, or carbonatoms is thiazolinyl or the alkene oxygen base of 2-7;
L
2and L
3identical or different, represent H or F independently of one another;
represent
X
2represent F, CN ,-OCF
3, carbonatoms be 1-5 alkyl or alkoxyl group, or carbonatoms is the thiazolinyl of 2-5;
M represents 0 or 1.
4. liquid-crystal composition according to claim 3, is characterized in that, the compound of described formula I-1 and/or formula I-2 accounts for the 5-35% of described liquid-crystal composition gross weight; The compound of described general formula II accounts for the 20-55% of described liquid-crystal composition gross weight; The compound of described general formula III accounts for the 5-30% of described liquid-crystal composition gross weight; The compound of described general formulae IV accounts for the 0-10% of described liquid-crystal composition gross weight; The compound of described general formula V accounts for the 1-15% of described liquid-crystal composition gross weight; And the compound of described general formula VI accounts for the 5-30% of described liquid-crystal composition gross weight.
5. liquid-crystal composition according to claim 4, is characterized in that, the compound of described formula I-1 is selected from one or more of compound in the group be made up of following compound:
The compound of described formula I-2 is selected from one or more of compound in the group be made up of following compound:
6. liquid-crystal composition according to claim 4, is characterized in that, the compound of described general formula II is selected from one or more of compound in the group be made up of following compound:
7. liquid-crystal composition according to claim 4, is characterized in that, the compound of described general formula III is selected from one or more of compound in the group be made up of following compound:
The compound of described general formulae IV is selected from one or more of compound in the group be made up of following compound:
The compound of described general formula V is selected from one or more of compound in the group be made up of following compound:
The compound of described general formula VI is selected from one or more of compound in the group be made up of following compound:
8. the liquid-crystal composition according to any one in claim 5 to 7, is characterized in that, described liquid-crystal composition comprises:
4%(weight) the compound of formula VI-5;
5%(weight) the compound of formula VI-6;
4%(weight) the compound of formula V-2;
5%(weight) the compound of formula V-5;
4%(weight) the compound of formula III-1;
4%(weight) the compound of formula III-2;
6%(weight) the compound of formula III-5;
6%(weight) the compound of formula III-6;
5%(weight) the compound of formula VI-1;
5%(weight) the compound of formula VI-2;
5%(weight) the compound of formula IV-2;
23%(weight) the compound of formula II-3;
12%(weight) the compound of formula II-5;
6%(weight) the compound of formula I-1-2; And
6%(weight) the compound of formula I-2-4,
Or described liquid-crystal composition comprises:
3%(weight) the compound of formula VI-6;
5%(weight) the compound of formula VI-7;
4%(weight) the compound of formula V-2;
5%(weight) the compound of formula V-3;
4%(weight) the compound of formula III-2;
3%(weight) the compound of formula III-3;
6%(weight) the compound of formula III-5;
6%(weight) the compound of formula III-6;
4%(weight) the compound of formula VI-1;
5%(weight) the compound of formula VI-2;
25%(weight) the compound of formula II-3;
11%(weight) the compound of formula II-5;
6%(weight) the compound of formula I-1-2;
7%(weight) the compound of formula I-1-3; And 6%(weight) the compound of formula I-2-4,
Or described liquid-crystal composition comprises:
5%(weight) the compound of formula VI-6;
5%(weight) the compound of formula VI-7;
5%(weight) the compound of formula VI-8;
5%(weight) the compound of formula V-2;
8%(weight) the compound of formula III-2;
6%(weight) the compound of formula III-5;
3%(weight) the compound of formula VI-1;
5%(weight) the compound of formula VI-2;
5%(weight) the compound of formula II-2;
25%(weight) the compound of formula II-3;
8%(weight) the compound of formula II-5;
4%(weight) the compound of formula I-1-2;
8%(weight) the compound of formula I-2-4; And
8%(weight) the compound of formula I-2-7,
Or described liquid-crystal composition comprises:
3%(weight) the compound of formula VI-6;
5%(weight) the compound of formula VI-7;
5%(weight) the compound of formula VI-8;
4%(weight) the compound of formula V-2;
5%(weight) the compound of formula V-3;
8%(weight) the compound of formula III-2;
6%(weight) the compound of formula III-3;
6%(weight) the compound of formula III-5;
4%(weight) the compound of formula VI-1;
5%(weight) the compound of formula VI-2;
20%(weight) the compound of formula II-3;
10%(weight) the compound of formula II-5;
6%(weight) the compound of formula I-1-2;
7%(weight) the compound of formula I-2-4; And
6%(weight) the compound of formula I-2-7.
9. a liquid-crystal display, comprises the liquid-crystal composition described in any one in claim 1 to 8.
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|---|---|---|---|
| CN201310544237.1A CN104629773B (en) | 2013-11-06 | 2013-11-06 | Liquid crystal composition and display device thereof |
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|---|---|---|---|
| CN201310544237.1A CN104629773B (en) | 2013-11-06 | 2013-11-06 | Liquid crystal composition and display device thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955631A (en) * | 2017-11-22 | 2018-04-24 | 烟台显华化工科技有限公司 | A kind of liquid-crystal composition and its application |
| CN108300489A (en) * | 2018-02-09 | 2018-07-20 | 烟台显华化工科技有限公司 | A kind of liquid-crystal composition and its application |
| CN108624335A (en) * | 2017-03-15 | 2018-10-09 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid crystal material and its application |
| CN109652094A (en) * | 2018-12-24 | 2019-04-19 | 西安彩晶光电科技股份有限公司 | A kind of preparation method of difluoromethyl ether bridged bond liquid crystal monomer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996034071A1 (en) * | 1995-04-25 | 1996-10-31 | Chisso Corporation | Liquid crystal composition and liquid crystal display element |
| KR101175089B1 (en) * | 2004-10-04 | 2012-08-21 | 제이엔씨 주식회사 | Liquid crystal composition and liquid crystal display element |
| JP5359478B2 (en) * | 2008-04-11 | 2013-12-04 | Ｊｎｃ株式会社 | Liquid crystal composition and liquid crystal display element |
| CN103242860B (en) * | 2013-05-15 | 2014-11-05 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and liquid crystal display device |
-
2013
- 2013-11-06 CN CN201310544237.1A patent/CN104629773B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624335A (en) * | 2017-03-15 | 2018-10-09 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid crystal material and its application |
| CN107955631A (en) * | 2017-11-22 | 2018-04-24 | 烟台显华化工科技有限公司 | A kind of liquid-crystal composition and its application |
| CN108300489A (en) * | 2018-02-09 | 2018-07-20 | 烟台显华化工科技有限公司 | A kind of liquid-crystal composition and its application |
| CN109652094A (en) * | 2018-12-24 | 2019-04-19 | 西安彩晶光电科技股份有限公司 | A kind of preparation method of difluoromethyl ether bridged bond liquid crystal monomer |
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|---|---|
| CN104629773B (en) | 2017-01-11 |
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Address after: 2/F, Sino Japan Cooperation Innovation Park, No. 16 Zidan Road, Qinhuai District, Nanjing, Jiangsu Province, 210014 Patentee after: JIANGSU HECHENG DISPLAY TECHNOLOGY Co.,Ltd. Address before: 212212 East Side of Yangzhong Yangtze River Bridge, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU HECHENG DISPLAY TECHNOLOGY Co.,Ltd. |