CN104152156B - A kind of STN N phase liquid crystal material - Google Patents
A kind of STN N phase liquid crystal material Download PDFInfo
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- CN104152156B CN104152156B CN201410351858.2A CN201410351858A CN104152156B CN 104152156 B CN104152156 B CN 104152156B CN 201410351858 A CN201410351858 A CN 201410351858A CN 104152156 B CN104152156 B CN 104152156B
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- liquid crystal
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- crystal material
- stn
- mixture
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 title claims abstract description 27
- 150000001875 compounds Chemical class 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 230000005684 electric field Effects 0.000 abstract description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 6
- 238000011056 performance test Methods 0.000 description 6
- 210000002858 crystal cell Anatomy 0.000 description 3
- 0 CCCC(CC1)CCC1*(C(C)C)C1CCC(C)CC1 Chemical compound CCCC(CC1)CCC1*(C(C)C)C1CCC(C)CC1 0.000 description 2
- 150000001555 benzenes Chemical class 0.000 description 2
- JRXXLCKWQFKACW-UHFFFAOYSA-N biphenylacetylene Chemical group C1=CC=CC=C1C#CC1=CC=CC=C1 JRXXLCKWQFKACW-UHFFFAOYSA-N 0.000 description 2
- 125000004093 cyano group Chemical group *C#N 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JYGXADMDTFJGBT-VWUMJDOOSA-N hydrocortisone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 JYGXADMDTFJGBT-VWUMJDOOSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- WLPATYNQCGVFFH-UHFFFAOYSA-N 2-phenylbenzonitrile Chemical class N#CC1=CC=CC=C1C1=CC=CC=C1 WLPATYNQCGVFFH-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- OMFXVFTZEKFJBZ-HJTSIMOOSA-N corticosterone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@H](CC4)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OMFXVFTZEKFJBZ-HJTSIMOOSA-N 0.000 description 1
- WVIIMZNLDWSIRH-UHFFFAOYSA-N cyclohexylcyclohexane Chemical group C1CCCCC1C1CCCCC1 WVIIMZNLDWSIRH-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229960000890 hydrocortisone Drugs 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 oxygen heterocyclic ring benzene class Chemical class 0.000 description 1
- 201000007094 prostatitis Diseases 0.000 description 1
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 1
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- Liquid Crystal Substances (AREA)
Abstract
The invention discloses a kind of STN N phase liquid crystal material, this liquid crystal material adopts the large compounds of component A-H eight, and the performance utilizing them different carries out mixture, optimum to reach mixed liquid crystal properties.Liquid crystal material prepared by the present invention, has low viscosity, large K
33/ K
11value, good steepness, and Δ n and V
thadjustable, clearing point is higher than the working temperature upper limit more than 30 DEG C.The present invention is applied to the electric field response speed that STN display field is conducive to improving indicating meter, reduces driving voltage and widens use temperature scope, thus meets STN display field to the different requirements of Nematic phase liquid crystal material.
Description
Technical field
The invention belongs to liquid crystal material technical field, be specifically related to a kind of STN N phase liquid crystal material.
Background technology
At present, liquid-crystal display is widely used.Liquid crystal material is realizing having very important effect in these display modes, the appearance of each new display mode, the appearance of the new liquid crystal material that invariably accompanies.Along with the development of lcd technology, people invent different display modes meeting various needs, the display format having formed large-scale industrial production at present mainly contains twisted nematic liquid crystal display (TN), Supertwist Nematic Liquid Crystal Display (STN) and tft liquid crystal display (TFT) etc., and these display devices are widely used in wrist-watch, counter, instrument display, PDA, mobile phone, liquid-crystal display and LCD TV etc.Wherein develop the most successfully, market share amount maximum, with fastest developing speed be nematic liquid crystal display (as TFT, STN, TN etc.), use various Nematic phase liquid crystal material.Display liquid crystal material is made up of multiple small molecular organic compounds, these micromolecular key structural feature are rodlike molecule structures, now develop into many types, such as various biphenyl nitrile, ester class, cyclohexyl (connection) benzene class, oxygen heterocyclic ring benzene class, pyrimidine lopps, diphenyl acetylene class, ethyl bridged bond class and alkene end group class and various fluorine-containing phenyl ring classes etc.Existing STN N phase liquid crystal is of less types, K
33/ K
11value is large not, and steepness is not high enough, is also not enough to the demand meeting STN display field.
Due to the expansion of the STN capacity of display, electro-optical characteristic curves steepening, contrast gradient improves, and requires higher to the electro-optical properties of used Nematic phase liquid crystal material.China's liquid crystal material industry is in develop rapidly period, and various liquid crystal display device has excellent display effect, the huge market space and economic implications.The production domesticization of STN liquid crystal material will reduce the cost of liquid crystal display device, greatly improves the international competitiveness of the liquid crystal display device of China, makes the liquid crystal industry of China step into prostatitis, the world.
Summary of the invention
The object of the invention is to, provide a kind of STN N phase liquid crystal material, this liquid crystal material has low viscosity, large K
33/ K
11value, good steepness, and Δ n and V
thadjustable, clearing point, higher than the working temperature upper limit more than 30 DEG C, can meet the demand being applied to STN and showing field.
For achieving the above object, the technical solution used in the present invention is:
A kind of STN N phase liquid crystal material, by mass percentage, described liquid crystal material comprises following component: the component A of 17.80% ~ 21.86%, the B component of 9.28% ~ 11.38%, the component C of 9.66% ~ 17.2%, the D component of 8.51% ~ 15.85%, the component E of 4.21% ~ 10.05%, the F component of 29.93% ~ 39.68%, the G component of 0.41% ~ 2.08%, and the H component of 2.62% ~ 3.87%;
Wherein, component A by structural formula is
compound composition;
B component by structural formula is
compound composition;
Component C by structural formula is
compound composition;
D component by structural formula is
compound composition;
Component E by structural formula is
compound composition;
F component by structural formula is
compound composition;
G component by structural formula is
compound composition;
H component by structural formula is
compound composition;
In formula, R
1~ R
13for alkyl, unsaturated alkyl ,-CN or alkoxyl group; X
1~ X
4for-H ,-F ,-CN or-CH
3.
Preferably, component A is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Preferably, B component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Preferably, component C is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Preferably, D component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Preferably, component E is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Preferably, F component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Preferably, G component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Preferably, H component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Liquid crystal material of the present invention is mixture, is obtained, have low viscosity, large K by the multiple compound mixture with different molecular structures
33/ K
11value, good steepness, and Δ n and V
thadjustable, clearing point, higher than the working temperature upper limit more than 30 DEG C, can meet the demand being applied to STN and showing field, is mainly used in STN and shows field.
The present invention is applied to the electric field response speed that STN display field is conducive to improving indicating meter, reduces driving voltage and widens use temperature scope, thus meets STN display field to the different requirements of Nematic phase liquid crystal material.
Embodiment
Below in conjunction with embodiment, the present invention is described in further details.
The present invention adopts eight large compounds, the performance utilizing them different carries out mixture, optimum to reach mixed liquid crystal properties, comprise the compd A component with cyclohexyl (connection) phenyl group, there is the compd B component that 4-replaces-3-substituted benzene 4 benzoic acid ester group, there is the Compound C component of bicyclohexane phenyl group, there is the Compound D component of bicyclohexane group, there is the compd E component of bicyclohexane vinyl group, there is the compound F 17-hydroxy-corticosterone component of tolane group, have 3, 4, the fluoro-4'-of 5-tri-(4-hexanaphthene)-1, the compound G component of 1'-biphenyl group, there is 4-(4-hexanaphthene) benzene-[1, 1'-bis cyclohexane] the compound H component etc. of-4-carboxylate group.
Component ratio involved in following embodiment is massfraction, and temperature unit is DEG C, the concrete meaning of other symbols and test condition as follows:
T
n-Irepresent the clearing point temperature of liquid crystal, T
s-Nrepresent liquid crystal transition temperature from solid-state to nematic, DSC and polarizing microscope test;
Viscosity represents liquid crystal viscosity, the test of DV-S numeral rotational viscosimeter;
Δ n represents optical anisotropy, Δ n=n
e-n
o, wherein, n
ofor the specific refractory power of ordinary light, n
efor the specific refractory power of extraordinary ray, test condition: 20 DEG C, 589nm, Abbe refractometer is tested;
Δ ε represents dielectric anisotropy, Δ ε=ε
∥-ε
⊥, wherein, ε
∥for being parallel to the specific inductivity in molecular long axis direction, ε
⊥for the specific inductivity perpendicular to molecular long axis direction, test condition: 20 DEG C, 1KHz, the parallel-oriented box of 10.0 μm, accurate LCR instrument test;
K
33, K
11for elastic constant, recorded by strain comprehensive parameter tester;
V
10,25, V
90,25for threshold voltage and saturation voltage, liquid crystal comprehensive parameter tester is had to record.
Embodiment 1
By compound corresponding in table 1 and massfraction modulation nematic liquid crystal mixture, ultrasonic more than 1h ensures that component mixes.Obtained liquid crystal compound being filled with thick in box is carry out performance test in the liquid crystal cell of 10 μm.
The composition of table 1 embodiment 1 liquid crystal material and performance test
Embodiment 2
By compound corresponding in table 2 and massfraction modulation nematic liquid crystal mixture, ultrasonic more than 1h ensures that component mixes.Obtained liquid crystal compound being filled with thick in box is carry out performance test in the liquid crystal cell of 10 μm.
The composition of table 2 embodiment 2 liquid crystal material and performance test
Embodiment 3
By compound corresponding in table 3 and massfraction modulation nematic liquid crystal mixture, ultrasonic more than 1h ensures that component mixes.Obtained liquid crystal compound being filled with thick in box is carry out performance test in the liquid crystal cell of 10 μm.
The composition of table 3 embodiment 3 liquid crystal material and performance test
The present invention only lists concrete material and the proportioning of above embodiment, and the performance of liquid crystal compound is tested, but on the basis of above embodiment, utilize representated by component A-H the further preferably combination of compound, all can reach object of the present invention.Therefore, above-described embodiment only for illustration of the present invention, and is not used in and limits scope.
Claims (1)
1. a STN N phase liquid crystal material, it is characterized in that, by mass percentage, described liquid crystal material comprises following component: the component A of 17.80% ~ 21.86%, the B component of 9.28% ~ 11.38%, the component C of 9.66% ~ 17.2%, the D component of 8.51% ~ 15.85%, the component E of 4.21% ~ 10.05%, the F component of 29.93% ~ 39.68%, the G component of 0.41% ~ 2.08%, and the H component of 2.62% ~ 3.87%;
Wherein, component A is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
B component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Component C is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
D component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
Component E is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
F component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
G component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
H component is the mixture that in following compound, any one or a few mixes with arbitrary proportion:
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410351858.2A CN104152156B (en) | 2014-07-22 | 2014-07-22 | A kind of STN N phase liquid crystal material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410351858.2A CN104152156B (en) | 2014-07-22 | 2014-07-22 | A kind of STN N phase liquid crystal material |
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| Publication Number | Publication Date |
|---|---|
| CN104152156A CN104152156A (en) | 2014-11-19 |
| CN104152156B true CN104152156B (en) | 2015-12-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107253899B (en) * | 2017-08-01 | 2021-01-26 | 中节能万润股份有限公司 | Fluorinated biphenyl liquid crystal monomer and preparation method thereof |
| CN110862829B (en) * | 2019-11-19 | 2021-11-05 | 北京大学 | Low-driving-voltage liquid crystal composition for PDLC (polymer dispersed liquid crystal) and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0824141B1 (en) * | 1996-08-14 | 2001-06-20 | Chisso Corporation | Liquid crystal composition and liquid crystal display element |
| JP3453781B2 (en) * | 1993-03-25 | 2003-10-06 | 大日本インキ化学工業株式会社 | Nematic liquid crystal composition and liquid crystal display device using the same |
| JP3561921B2 (en) * | 1992-07-08 | 2004-09-08 | 大日本インキ化学工業株式会社 | Nematic liquid crystal composition |
| JP3593721B2 (en) * | 1994-09-14 | 2004-11-24 | 大日本インキ化学工業株式会社 | Nematic liquid crystal composition and liquid crystal display device using the same |
| JP2005023113A (en) * | 2003-06-30 | 2005-01-27 | Dainippon Ink & Chem Inc | Liquid crystal composition and liquid crystal display element |
| JP3669058B2 (en) * | 1995-06-22 | 2005-07-06 | チッソ株式会社 | Alkenylcyclohexane derivative, liquid crystal composition, and liquid crystal display device |
| JP4779182B2 (en) * | 1999-05-28 | 2011-09-28 | Ｄｉｃ株式会社 | Nematic liquid crystal composition and liquid crystal display device using the same |
| CN102492430A (en) * | 2011-11-28 | 2012-06-13 | 江苏和成化学材料有限公司 | Liquid crystal composition and liquid crystal display element containing the same |
-
2014
- 2014-07-22 CN CN201410351858.2A patent/CN104152156B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3561921B2 (en) * | 1992-07-08 | 2004-09-08 | 大日本インキ化学工業株式会社 | Nematic liquid crystal composition |
| JP3453781B2 (en) * | 1993-03-25 | 2003-10-06 | 大日本インキ化学工業株式会社 | Nematic liquid crystal composition and liquid crystal display device using the same |
| JP3593721B2 (en) * | 1994-09-14 | 2004-11-24 | 大日本インキ化学工業株式会社 | Nematic liquid crystal composition and liquid crystal display device using the same |
| JP3669058B2 (en) * | 1995-06-22 | 2005-07-06 | チッソ株式会社 | Alkenylcyclohexane derivative, liquid crystal composition, and liquid crystal display device |
| EP0824141B1 (en) * | 1996-08-14 | 2001-06-20 | Chisso Corporation | Liquid crystal composition and liquid crystal display element |
| JP4779182B2 (en) * | 1999-05-28 | 2011-09-28 | Ｄｉｃ株式会社 | Nematic liquid crystal composition and liquid crystal display device using the same |
| JP2005023113A (en) * | 2003-06-30 | 2005-01-27 | Dainippon Ink & Chem Inc | Liquid crystal composition and liquid crystal display element |
| CN102492430A (en) * | 2011-11-28 | 2012-06-13 | 江苏和成化学材料有限公司 | Liquid crystal composition and liquid crystal display element containing the same |
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|---|---|
| CN104152156A (en) | 2014-11-19 |
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