CN106566563A - Liquid crystal composition - Google Patents
Liquid crystal composition Download PDFInfo
- Publication number
- CN106566563A CN106566563A CN201610947626.2A CN201610947626A CN106566563A CN 106566563 A CN106566563 A CN 106566563A CN 201610947626 A CN201610947626 A CN 201610947626A CN 106566563 A CN106566563 A CN 106566563A
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- formula
- crystal composition
- compound
- liquid
- liquid crystal
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 31
- 150000001875 compounds Chemical class 0.000 claims abstract description 31
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000004785 fluoromethoxy group Chemical group [H]C([H])(F)O* 0.000 claims description 2
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 claims description 2
- FNIATMYXUPOJRW-UHFFFAOYSA-N cyclohexylidene Chemical group [C]1CCCCC1 FNIATMYXUPOJRW-UHFFFAOYSA-N 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 8
- 230000002277 temperature effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal Substances (AREA)
Abstract
The invention relates to a liquid crystal composition which can be applied to vehicle-mounted display systems. The liquid crystal composition comprises compounds with structures described in the general formulas I, II, III, IV, V and VI. The liquid crystal composition is characterized in that the utilization temperature range is wide (minus 50 DEG C to 110 DEG C), the clearing point is high (110 DEG C), S-N points are ultralow (minus 50 DEG C), the refractive index range is wide (0.100 to 0.125), and the voltage range is wide (1.25 V to 3.00 V). The liquid crystal composition is high in stability and display contrast, and can meet the requirement on change of ultralow and ultrahigh temperature of the automobile environment.
Description
Technical field
The present invention relates to a kind of liquid-crystal composition, more particularly to a kind of liquid-crystal composition for being applied to onboard system, belong to
Liquid crystal material technical field.
Background technology
With the fast development of China's economy and significantly improving for national life level, automobile has been enter into common people house,
More people are higher for the performance and comfortableness requirement of automobile, and in the past people got used to the mechanical instrument by orthodox car
Disk is reading each item data (such as speed per hour, oil consumption, mileage number) of automobile, and the innovation and communication network now with science and technology
Fast development, people need terminal presentation facility that is more directly perceived, more modernizing to meet the instant messaging of people, navigation and
Amusement.Therefore vehicle-mounted LCDs is just ready to appear, is applied to the characteristics of with its distinctive light, low power consuming and colorization
Old-fashioned machinery is replaced to show on automobile, realization digitlization display function, such as the car running computer display screen on medium-to-high grade car, for showing
Show the average fuel consumption of automobile, instantaneous oil consumption, outdoor temperature, average speed, driving time, single distance travelled, service cycle is led
Boat and multimedia recreation.
Common liquid crystal display is divided into TN-LCD (Twisted Nematic-LCD, TN-LCD), STN-LCD
(Super TN-LCD, STN-LCD), DSTN-LCD (Double layer STN-LCD, double layers super twisted nematic LCD)
With four kinds of TFT-LCD (Thin Film Transistor-LCD, thin film transistor (TFT) LCD).TFT screens point many kinds:VA(PVA,
SVA), S-IPS, TN etc., TN-TFT displays contrast height due to its fast response time, to light and heat stability, temperature range
Wide the advantages of, in-vehicle display system is extremely suitable for use in, can be shown under high and low temperature environment, it is good to light and thermally stable, show
Stability and reliability are high, in recent years, with the intelligent and multifunction of in-vehicle display system, for onboard system exploitation
TN-TFT liquid crystal materials have been applied in onboard system, and foreign countries are mainly Germany MERCK and Japan DIC and supply such product, state
Inside also without excellent product supply market.
The content of the invention
The deficiency that the present invention exists for the TN-TFT liquid crystal materials that existing onboard system is used, there is provided one kind can be applicable to
Liquid-crystal composition on onboard system.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of liquid-crystal composition, it is characterised in that include the compound of the structure as shown in formula I～VI：
In formula I～VI, n, m represent 1～20 integer；The expression 0 or 1 of x, y, p independence；The expression F of Y independences ,-
OCF3、-CF3、-OCHF2、OCH2F, straight chained alkyl or alkoxy base；The expression phenylene of A1, A2, A3 independence or sub- hexamethylene
Base；Expression-the CH of Z independences2CH2- ,-CH2O- or singly-bound；The expression 0,1,2 or 3 of q independences.
The ratio of each component is as follows in above-mentioned composition：Fraction meter by weight, the chemical combination that one or more there is formula I
Thing：4～18wt%；The compound that there is formula II one or more：20～40wt%；The change that there is general formula III one or more
Compound：11～33wt%；The compound that there is general formulae IV one or more：8～15wt%；There is formula V one or more
Compound：5～20wt%；The compound that there is formula VI one or more：0～27wt%.
Further, the structural formula of compound with formula I is：
Further, the structural formula of compound with formula II is：
Further, the structural formula of compound with general formula III is：
Further, the structural formula of compound with general formulae IV is：
Further, the structural formula of compound with formula V is：
Further, the compound with formula VI is：
The present invention is also claimed application of the above-mentioned liquid-crystal composition in in-vehicle display system.
The invention has the beneficial effects as follows：
1) liquid-crystal composition that the present invention is provided is using temperature range width (- 40 DEG C --- 90 DEG C), with high clearing point (110
DEG C), ultralow S-N points (- 50 DEG C), ranges of indices of refraction width (0.100-0.125), voltage range width 1.25V-3.00V；
2) this liquid-crystal composition stability is high, displays contrast height, adapts to the need of the ultralow superhigh temperature change of automotive environment
Ask.
Specific embodiment
The principle and feature of the present invention are described below in conjunction with example, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
The code of group used in the embodiment of the present invention is illustrated below：
H is representedB is represented
F representative-F V representatives=
E representative-C2H4- T representative-OCF3
U is representedO representatives-OCmH2m+1
Arabic numerals n, m represent CnH2n+1 (alkyl)
The tester that test data obtained by embodiment is used is：
Instrument megger 6517B, comprehensive photoelectricity test instrument LCT-5016, dielectrometer is Agilent 4284A, clearly
Bright spot tester WPX-1, birefringence tester DR-M2, S-N points are tested as plum Teller DSC testers, electric logging device
MODEL3200, storage experiment is bottled 500 hours, photoelectric curve testing cassete step-by-step path difference 500nm, and display effect experiment is low
- 40 DEG C of temperature lights 12 hours Dynamic Announces of insulation, and 90 DEG C of high temperature, V50 voltages light display, 120 hours.
Embodiment 1：
The formula rate of liquid-crystal composition is as follows：
| Sequence number | Compound | Proportioning (wt%) |
| 1 | 3BB(2F)U(F) | 10 |
| 2 | 4BB(F)B(2F)U(F) | 8 |
| 3 | 3HHB(F)B(3F) | 5 |
| 4 | 2BB(F)B3 | 3 |
| 5 | 2BB(F)B4 | 3 |
| 6 | 3HHBB(3F) | 3 |
| 7 | 3HHB(3F) | 5 |
| 8 | 5HHB(3F) | 5 |
| 9 | 3HHB(2F) | 10 |
| 10 | 4BBB(3F) | 5 |
| 11 | 3HHV | 6 |
| 12 | 5HHV | 9 |
| 13 | B(3F)HHV | 10 |
| 14 | 1BHHV | 10 |
| 15 | 3HB(F)B(F)H3 | 4 |
| 16 | 5HB(F)B(F)H3 | 4 |
| It is total | 100 |
The test data of the present embodiment gained liquid-crystal composition is as follows：
Temperature effect data (Pitch=40.0um)
Embodiment 2：
The formula rate of liquid-crystal composition is as follows：
| Sequence number | Compound | Proportioning (quality %) |
| 1 | 3BB(2F)U(F) | 8 |
| 2 | 5BB(F)B(2F)U(F) | 8 |
| 3 | 2HHB(F)B(3F) | 10 |
| 4 | 3HHBB(3F) | 5 |
| 5 | 3HHB(3F) | 6 |
| 6 | 5HHB(3F) | 4 |
| 7 | 3HBU(F) | 7 |
| 8 | B(3F)HHV | 8 |
| 9 | B(3F)HH3V | 6 |
| 10 | 3HHV | 10 |
| 11 | 3HH1V | 6 |
| 12 | 1BHHV | 8 |
| 13 | B(2F)HHV | 6 |
| 14 | 4HEHB(3F) | 4 |
| 15 | 3HHEB(3F) | 4 |
| It is total | 100 |
Test data
Temperature effect data (Pitch=40.0um)
Embodiment 3：
The formula rate of liquid-crystal composition is as follows：
| Sequence number | Compound | Proportioning (quality %) |
| 1 | 3BB(2F)U(F) | 6 |
| 2 | 4BB(F)B(2F)U(F) | 5 |
| 3 | 2HHB(F)B(3F) | 3 |
| 4 | 2BB(F)B36 | 3 |
| 5 | 2BB(F)B4 | 3 |
| 6 | 3BB(F)B2 | 3 |
| 7 | 5BB(F)B4 | 3 |
| 8 | 3HHB(F) | 6 |
| 9 | 3HHB(2F) | 5 |
| 10 | 5HHEB(F) | 5 |
| 11 | 3HBB(2F) | 3 |
| 12 | 2HBB(F) | 4 |
| 13 | 3HBO2 | 8 |
| 14 | 3HHV | 8 |
| 15 | 5HHV | 14 |
| 16 | 1BHHV | 10 |
| 17 | B(F)HHV | 5 |
| 18 | 3HB(F)B(F)H5 | 3 |
| 19 | 3HB(F)B(F)4 | 3 |
| It is total | 100 |
Test data
Temperature effect data (Pitch=44.0um)
Embodiment 4：
The formula rate of liquid-crystal composition is as follows：
| Sequence number | Compound | Proportioning (quality %) |
| 1 | 3BB(2F)U(F) | 5 |
| 2 | 4BB(F)B(2F)U(F) | 6 |
| 3 | 2HHB(F)B(3F) | 3 |
| 4 | 2HB(F)B3 | 3 |
| 5 | 3HB(F)B5 | 3 |
| 6 | 3HB(F)B4 | 3 |
| 7 | 3HB(F)B2 | 3 |
| 8 | 5HHB(F) | 6 |
| 9 | 3HHB(F) | 5 |
| 10 | 5HHEB(F) | 5 |
| 11 | B(2F)HHV | 3 |
| 12 | B(F)HHV | 4 |
| 13 | B(3F)HH3V | 3 |
| 14 | 3HBO2 | 8 |
| 15 | 3HHV | 14 |
| 16 | 5HHV | 5 |
| 17 | 1BHHV | 10 |
| 18 | 1BHH3V | 5 |
| 19 | 3HB(F)B(F)H5 | 3 |
| 20 | 3HB(F)B(F)H4 | 3 |
| It is total | 100 |
Test data
Temperature effect data (Pitch=45.0um)
Embodiment 5：
The formula rate of liquid-crystal composition is as follows：
| Sequence number | Compound | Proportioning (quality %) |
| 1 | 3BB(2F)U(F) | 4 |
| 2 | 2BB(F)B3 | 3 |
| 3 | 3BB(F)B5 | 3 |
| 4 | 3BB(F)4 | 3 |
| 5 | 3BB(F)2 | 3 |
| 6 | 3HBO2 | 8 |
| 7 | 5HBO2 | 10 |
| 8 | 5HHEB(F) | 8 |
| 9 | 5HHB(F) | 4 |
| 10 | 3HBB(2F) | 3 |
| 11 | 5HBB(2F) | 3 |
| 12 | 5HBB(F) | 4 |
| 13 | 3HHV | 11 |
| 14 | B(2F)HHV | 7 |
| 15 | 1BHHV | 9 |
| 16 | 1BHH3V | 4 |
| 17 | 3HB(F)B1 | 3 |
| 18 | 3HB(F)B(F)H5 | 4 |
| 19 | 3HB(F)B(F)H4 | 3 |
| 20 | 3HBBH5 | 3 |
| It is total | 100 |
Temperature effect data (Pitch=40.0um)
Embodiment 6：
| Sequence number | Compound | Proportioning (quality %) |
| 1 | 3BB(2F)U(F) | 4 |
| 2 | 3HB(F)B5 | 4 |
| 3 | 3HB(F)B4 | 4 |
| 4 | 3HB(F)B2 | 4 |
| 5 | 2HB(F)B3 | 5 |
| 6 | 3HHB(2F) | 7 |
| 7 | 3HHEB(F) | 6 |
| 8 | 5HHEB(F) | 7 |
| 9 | 3HHV | 18 |
| 10 | 4HHV | 7 |
| 11 | 5HHV | 8 |
| 12 | B(2F)HHV | 7 |
| 13 | 1BHHV | 12 |
| 14 | 3HB(F)B(F)H5 | 4 |
| 15 | 3HB(F)B(F)H4 | 4 |
| 16 | 3HBBH5 | 2 |
| It is total | 100 |
Test data
Temperature effect data (Pitch=43.0um)
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. a kind of liquid-crystal composition, it is characterised in that include the compound of the structure as shown in formula I～VI：
In formula I～VI, n, m represent 1～20 integer；The expression 0 or 1 of x, y, p independence；The expression F of Y independences ,-OCF3、-
CF3、-OCHF2、OCH2F, straight chained alkyl or alkoxy base；The expression phenylene of A1, A2, A3 independence or cyclohexylidene；Z independences
Expression-CH2CH2- ,-CH2O- or singly-bound；The expression 0,1,2 or 3 of q independences.
The ratio of each component is as follows in above-mentioned composition：Fraction meter by weight, the compound that one or more there is formula I：4～
18wt%；The compound that there is formula II one or more：20～40wt%；The compound that there is general formula III one or more：
11～33wt%；The compound that there is general formulae IV one or more：8～15wt%；The chemical combination that there is formula V one or more
Thing：5～20wt%；The compound that there is formula VI one or more：0～27wt%.
2. liquid-crystal composition according to claim 1, it is characterised in that the structural formula of compound with formula I is：
3. liquid-crystal composition according to claim 1, it is characterised in that the structural formula of compound with formula II
For：
4. liquid-crystal composition according to claim 1, it is characterised in that the structural formula of compound with general formula III
For：
5. liquid-crystal composition according to claim 1, it is characterised in that the structural formula of compound with general formulae IV
For：
6. liquid-crystal composition according to claim 1, it is characterised in that the structural formula of compound with formula V
For：
7. liquid-crystal composition according to claim 1, it is characterised in that the compound with formula VI is：
8. application of the liquid-crystal composition any one of claim 1～7 in in-vehicle display system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610947626.2A CN106566563B (en) | 2016-10-26 | 2016-10-26 | A kind of liquid-crystal composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610947626.2A CN106566563B (en) | 2016-10-26 | 2016-10-26 | A kind of liquid-crystal composition |
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| CN106566563A true CN106566563A (en) | 2017-04-19 |
| CN106566563B CN106566563B (en) | 2019-08-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815323A (en) * | 2017-11-16 | 2018-03-20 | 黑龙江天有为电子有限责任公司 | A kind of liquid-crystal composition and its application in the vehicle-mounted segment encode liquid crystal display of antistatic |
| CN108192641A (en) * | 2018-01-22 | 2018-06-22 | 烟台显华化工科技有限公司 | A kind of liquid-crystal composition and its application |
| CN108690639A (en) * | 2018-06-22 | 2018-10-23 | 烟台显华化工科技有限公司 | A kind of liquid-crystal composition and its application |
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| CN107815323A (en) * | 2017-11-16 | 2018-03-20 | 黑龙江天有为电子有限责任公司 | A kind of liquid-crystal composition and its application in the vehicle-mounted segment encode liquid crystal display of antistatic |
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