CN108659861A - A kind of liquid-crystal composition and its application with high transmittance - Google Patents
A kind of liquid-crystal composition and its application with high transmittance Download PDFInfo
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- 0 *C(CC1)CCC1C(CC1)CCC1c(ccc(*)c1F)c1F Chemical compound *C(CC1)CCC1C(CC1)CCC1c(ccc(*)c1F)c1F 0.000 description 5
- DWQSSAARLWFJIR-WDJJBVAMSA-N CCCCC/C=C(\C=C/C)/c1ccc(CCCC)cc1 Chemical compound CCCCC/C=C(\C=C/C)/c1ccc(CCCC)cc1 DWQSSAARLWFJIR-WDJJBVAMSA-N 0.000 description 1
- ACVARMXVTDYZRW-UHFFFAOYSA-N CCc(cc1)ccc1-c1ccc(CCC=C)cc1 Chemical compound CCc(cc1)ccc1-c1ccc(CCC=C)cc1 ACVARMXVTDYZRW-UHFFFAOYSA-N 0.000 description 1
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- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
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- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
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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
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- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
- C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
- C09K2019/122—Ph-Ph
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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
- C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
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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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- C09K19/08—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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- C09K19/08—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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- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
- C09K2019/3422—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom the heterocyclic ring being a six-membered ring
Abstract
The present invention relates to a kind of high transmittance liquid-crystal composition, compound, the compound representated by least one general formula II, the compound representated by least one general formula III and the compound representated by least one general formula IV representated by least one general formula I are included in the composition.Liquid-crystal composition provided by the present invention increases the vertical dielectric of liquid-crystal composition by adding class ii compound, promotes dielectric anisotropic by compound I, and then obtain the liquid-crystal composition for the vertical dielectric for having big, promotes liquid crystal display transmitance.By the optimum organization of each component, and then obtain the liquid-crystal composition of the high transmittance with fast-response.Liquid-crystal composition of the present invention has big vertical dielectric constant, and then the ratio with low parallel dielectric and vertical dielectric constant, its use in IPS or FFS mode display can be obviously improved the transmitance of liquid crystal display, effectively improve display effect and reduce energy consumption.
Description
Technical field
The invention belongs to liquid crystal material and its application fields, are related to a kind of liquid-crystal composition, specifically a kind of nematic
Phase liquid-crystal composition, exactly liquid-crystal composition provided by the present invention there is big vertical dielectric, more specifically this hair
Bright provided liquid-crystal composition has high transmitance.
Background technology
Currently, liquid crystal is widely applied in field of information display, while the application in optical communication also achieves one
Fixed progress (S.T.Wu, D.K.Yang.Reflective Liquid Crystal Displays.Wiley, 2001).It is close several
Year, the application field of liquid-crystal compounds significantly widens kinds of displays part, electro-optical device, electronic component, sensor etc.,
Nematic liquid crystal compound obtains most commonly used application in flat-panel monitor, is especially used for tft active matrix
In system.
Liquid crystal display experienced very long road for development with the discovery of liquid crystal.Austrian botanist in 1888
Friedrich Reinitzer are found that the first liquid crystal material benzoic acid cholesterol (cholesteryl benzoate).
Manguin has invented rubbing within 1917, to make single domain liquid crystal and research optical anisotropy.E.Bose in 1909
Moving (Swarm) theory is established, and (1918) are supported in the experiment for obtaining L.S.Ormstein and F.Zernike et al., after
It is discussed as statistical fluctuation through De Gennes.G.W.Oseen and H.Zocher founded continuum theory in 1933, and obtained
F.C.Frank perfect (1958).M.Born (1916) and K.Lichtennecker (nineteen twenty-six) has found and has studied liquid crystal
Dielectric anisotropy.1932, nematic phase was divided into positive and negative property two major classes by W.Kast accordingly.Nineteen twenty-seven,
V.Freedericksz and V.Zolinao has found that nematic liquid crystal under electric field or magnetic fields, deforms upon and there are voltages
Threshold value (Freederichsz transformations).This making for being found to be liquid crystal display provides foundation.
Nineteen sixty-eight RCA Corp. of U.S. R.Williams finds that nematic liquid crystal forms striped farmland under electric field action, and has
Light scattering phenomenon.With dynamic scattering display pattern is developed into and first liquid crystal in the world is made in G.H.Heilmeir
Display (LCD).Early seventies, Helfrich and Schadt have invented TN principles, and people are using TN photoelectric effect and integrate
Circuit is combined, and is made display device (TN-LCD), and wide foreground has been opened up for the application of liquid crystal.The seventies with
Come, due to the development of large scale integrated circuit and liquid crystal material, application of the liquid crystal in terms of display achieves breakthrough development,
1983~1985 years T.Scheffer et al. successively propose super-twist nematic (Super Twisred Nematic：STN) pattern
And active matrix (the Active matrix that P.Brody was proposed in 1972：AM) mode is used again.Traditional TN-
LCD technology has developed into STN-LCD and TFT-LCD technologies, although the number of scanning lines of STN up to 768 rows more than, work as temperature
The problems such as response speed, visual angle and gray scale are remained when raising, therefore large area, high information quantity, colored display are mostly
Using Active Matrix LCD At mode.TFT-LCD is widely used for direct viewing type TV, large-curtain projecting TV set, terminal
Display and certain military instrument are shown, it is believed that TFT-LCD technologies have more wide application prospect.
Wherein " active matrix " includes two types：1, the OMS on the silicon wafer as substrate (partly lead by metal oxide
Body) or other diodes.2, the thin film transistor (TFT) on the glass plate as substrate (TFT).
Monocrystalline silicon limits display size as substrate material, because each section display device even module assembled is tied at it
Occur many problems at conjunction.Thus, second of thin film transistor (TFT) is the promising active matrix type of tool, the photoelectricity effect utilized
Should be typically TN effects.TFT includes compound semiconductor, such as Cdse, or the TFT based on polycrystalline or amorphous silicon.
Currently, LCD product technologies are ripe, the technologies such as visual angle, resolution ratio, color saturation and brightness are successfully solved
Problem, display performance already close to or be more than CRT monitor.Large scale and small-medium size LCD are gradual in respective field
Occupy the dominant position of flat-panel monitor.Liquid crystal belongs to passive luminescence display, that is to say, that liquid crystal display panel played is photoswitch
Effect, light by transmitance after liquid crystal display panel be 6% or so, in order to promote brightness, need reinforce backlight illumination, Jin Erxu
More electric energy are consumed for promoting backlight illumination.This greatly improves the cost of backlight.So promoting the saturating of liquid crystal display panel
Crossing rate becomes the difficult point of current liquid crystal display.
Specifically, for IPS (being converted in face) and FFS (fringing field effect) mode display, liquid-crystal composition is reduced
ε||/ε⊥(ratio of parallel dielectric and vertical dielectric) can effectively promote the transmitance of liquid crystal display.It is provided by the present invention
Liquid-crystal composition significantly reduce the ε of liquid-crystal composition||/ε⊥, play the good effect for promoting transmitance.
Invention content
The purpose of the present invention is overcoming the deficiencies of existing technologies, a kind of high transmittance liquid-crystal composition is provided.
Specifically, including the compound representated by least one general formula I, at least one general formula II institutes in the composition
The compound representated by compound and at least one general formula IV representated by the compound of representative, at least one general formula III.
The general formula I is specially：
In the general formula I, R1Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be by O, S
Or CH=CH is replaced；L1Represent H or F；
Ring A1It represents：
The general formula II is specially：
In the general formula II, R2、R3C is represented each independently1~C12Straight chained alkyl, alkoxy or C2~C12Straight chain
Alkenyl；Ring A2Represent trans- 1,4- cyclohexyl or 1,4- phenylenes.
The general formula III is specially：
In the general formula III, R4、R5C is represented each independently1~C12Straight chained alkyl, wherein one or more are non-conterminous
CH2It can be replaced by O, S or CH=CH；Ring A3、A4Trans- 1,4- cyclohexyl or 1,4- phenylenes are represented each independently.
The general formula IV is specially：
In the general formula IV, R6Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl, R7Represent C1~C12It is straight
Alkyl group；Ring A5Represent trans- 1,4- cyclohexyl or 1,4- phenylenes.
Compound representated by general formula I provided by the invention is to contain 2- methyl -3,4,5- trifluoro-benzenes structure and difluoro first
The polar compound of oxygroup bridged bond, the structure have big dielectric anisotropy.In liquid-crystal composition provided by the invention, each liquid
The sum of brilliant component is 100%.The content of compound in the composition is preferably 3~30% described in general formula I, more preferably 5~
25%, further preferably 8~17%.
Preferably, the compound representated by general formula I is selected from the one or more of the compound representated by Formulas I A~Formulas I B：
In the Formulas I A~IB, R1Represent C1~C7Straight chained alkyl, preferably C2~C5Straight chained alkyl.
As the preferred embodiment of the present invention, the compound representated by general formula I is selected from Formulas I A1~IA4, Formulas I B1~IB4 institute's generations
The one or more of the compound of table：
It is highly preferred that the compound representated by general formula I is one or more in IA1, IA2, IB1, IB2.
Compound representated by general formula II provided by the invention contains 2,3- difluorobenzene structures, which has greatly vertical
Dielectric.In liquid-crystal composition provided by the invention, the sum of each liquid crystal components are 100%.Compound is in composition described in general formula II
In content be preferably 3~30%, more preferably 5~25%, further preferably 10~20%.
Preferably, the compound representated by the general formula II is one or more in IIA, IIB：
In described IIA, IIB, R2Represent C1~C7Straight chained alkyl, preferably C2~C5Straight chained alkyl；R3Represent C1~C7
Straight chained alkyl or unbranched alkoxy, preferably C1~C3Straight chained alkyl or unbranched alkoxy.
As the preferred embodiment of the present invention, the compound representated by general formula II be selected from Formula II A1~IIA20, IIB1~
The one or more of compound representated by IIB20：
It is highly preferred that the one kind or more of the compound representated by general formula II in IIA10, IIA14, IIB13, IIB14
Kind.
Compound twin nuclei representated by general formula III provided by the invention, the structure have low rotary viscosity.This hair
In the liquid-crystal composition of bright offer, the sum of each liquid crystal components are 100%.The content of compound described in general formula III in the composition
Preferably 40~70%, more preferably 50~65%, further preferably 60.5~62%.
Preferably, the compound representated by the general formula III is one or more in IIIA, IIIB, IIIC：
In described IIIA, IIIB, IIIC, R4Represent C1~C7Straight chained alkyl, preferably C1~C5Straight chained alkyl；R5Generation
Table C1~C7Straight chained alkyl, unbranched alkoxy or C2~C7Straight-chain alkenyl, preferably C1~C5Straight chained alkyl, straight chain alcoxyl
Base or C2~C5Straight-chain alkenyl.
As the preferred embodiment of the present invention, the compound representated by general formula III be selected from formula III A1~IIIA30, IIIB1~
The one or more of compound representated by IIIB24, IIIC1~IIIC24：
It is highly preferred that one kind in IIIA1, IIIA2, IIIC4, IIIC15 of the compound representated by general formula III or
It is a variety of.
In liquid-crystal composition provided by the invention, the content of compound in the composition described in general formula IV is preferably 3~
30%, more preferably 5~25%, further preferably 8~17%.
Preferably, the compound representated by general formula IV of the present invention preferably is selected from one kind of the compound representated by formula IV A, IVB
Or it is a variety of：
In described IVA, IVB, R6Represent C2~C7Straight chained alkyl or straight-chain alkenyl, preferably C2~C5Straight chained alkyl or
Straight-chain alkenyl；R7Represent C1~C7Straight chained alkyl, preferably C1~C5Straight chained alkyl.
As the preferred embodiment of the present invention, compound is selected from formula IV A1~IVA18, IVB1~IVB22 representated by general formula IV
It is one or more in structure：
It is highly preferred that the compound representated by general formula IV is one or more in IVA1, IVA2, IVB12, IVB16.
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.
For specific, liquid-crystal composition provided by the present invention includes the following components'mass percentage：
Compound representated by (1) 3~30% general formula I；
Compound representated by (2) 3~30% general formula II；
Compound representated by (3) 40~70% general formula III；
Compound representated by (4) 3~30% general formula IV.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
Compound representated by (1) 5~25% general formula I；
Compound representated by (2) 5~25% general formula II；
Compound representated by (3) 50~65% general formula III；
Compound representated by (4) 5~25% general formula IV.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
Compound representated by (1) 8~17% general formula I；
Compound representated by (2) 10~20% general formula II；
Compound representated by (3) 60.5~62% general formula III；
Compound representated by (4) 8~17% general formula IV.
It is further preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
Compound representated by (1) 3~6% general formula IA；
Compound representated by (2) 5~7% general formula IB；
Compound representated by (3) 12~14% general formula IIB；
Compound representated by (4) 55% general formula III A；
Compound representated by (5) 5.5~6% general formula III C；
Compound representated by (6) 10% general formula IVA；
Compound representated by (7) 3~7% general formula IVB.
It is particularly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
Liquid-crystal composition provided by the present invention increases the vertical dielectric of liquid-crystal composition by adding class ii compound,
Dielectric anisotropic is promoted by compound I, and then obtains the liquid-crystal composition for the vertical dielectric for having big, promotes liquid crystal
Show device transmitance.By the optimum organization of each component, and then obtain the liquid-crystal composition of the high transmittance with fast-response.
The preparation method of liquid-crystal composition of the present invention can be used conventional method and change two or more without specifically limited
It closes object mixing to be produced, such as be prepared by the method for mixing different component at high temperature and being soluble in one another, wherein by liquid crystal group
It closes object to be dissolved in the solvent for the compound and mix, then distills out the solvent under reduced pressure；Or it is of the present invention
Liquid-crystal composition can be prepared conventionally, and the smaller component of wherein content is such as dissolved in content at a higher temperature
In larger key component, or each affiliated component dissolved in organic solvent, such as acetone, chloroform or methanol, it then will be molten
It is obtained after liquid mixing removal solvent.
Liquid-crystal composition of the present invention has big vertical dielectric constant, and then is situated between with vertical with low parallel dielectric
The ratio of electric constant, the use in IPS or FFS mode display can be obviously improved the transmitance of liquid crystal display, effectively
Ground improves display effect and reduces energy consumption.
Description of the drawings
Fig. 1 is the transmitance simulation curve figure of embodiment 2 and comparative example 1.
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..
Unless otherwise indicated, percentage is weight percentage in the present invention；Temperature unit is degree Celsius；△ n represent optics
Anisotropy (25 DEG C)；ε∥And ε⊥Respectively represent parallel and vertical dielectric constant (25 DEG C, 1000Hz)；△ ε represent dielectric respectively to
Anisotropic (25 DEG C, 1000Hz)；γ 1 represents rotary viscosity (mPa.s, 25 DEG C)；Cp represents the clearing point (DEG C) of liquid-crystal composition；
K11、K22、K33Respectively represent splay, distortion and bend elastic constant (pN, 25 DEG C).
In following embodiment, unit structure code shown in table 1 indicates in liquid-crystal compounds.
Table 1：The group structure code of liquid-crystal compounds
By taking following compound structure as an example：
It is expressed as：5APUQKF
It is expressed as：5CCPUF
In following embodiment, the preparation of liquid-crystal composition is all made of heat of solution method, includes the following steps：It is pressed with balance
Weight percent weighs liquid-crystal compounds, wherein weighing addition sequence without particular requirement, usually with liquid-crystal compounds fusing point by height
Mixing is weighed successively to low sequence, heating stirring makes each component melt uniform at 60~100 DEG C, using filter, rotates,
It finally encapsulates up to target sample.
In following embodiment, the performance parameter of the weight percent of each component when liquid-crystal composition is shown in liquid-crystal composition
Following table.
Embodiment 1
Table 2：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 2
Table 3：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 3
Table 4：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 4
Table 5：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 5
Table 6：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 6
Table 7：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 7
Table 8：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 8
Table 9：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 9
Table 10：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 10
Table 11：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 11
Table 12：The weight percent of each component when performance parameter in liquid-crystal composition
Comparative example 1
Table 13：The weight percent of each component when performance parameter in liquid-crystal composition
Compared with embodiment 1 is summarized with each performance parameter value of 1 gained liquid-crystal composition of comparative example, referring to table 14.
Table 14：The performance parameter of liquid-crystal composition compares
| △n | ε⊥ | △ε | ε∥ | Cp | ε∥/ε⊥ | |
| Embodiment 1 | 0.097 | 3.6 | +2.6 | 6.2 | 80 | 1.722 |
| Comparative example 1 | 0.097 | 2.6 | +2.5 | 5.1 | 78 | 1.962 |
Known to relatively：Compared with comparative example 1, the liquid-crystal composition that embodiment 2 provides has low parallel dielectric and hangs down
The ratio of straight dielectric, so having higher transmitance.
Transmitance is carried out to embodiment 2 and comparative example 1 to simulate to obtain following data table 15：
Table 15：Embodiment 2 is compared with 1 transmitance of comparative example
| Embodiment 2 | Comparative example 1 | |
| Transmitance | 0.28931 | 0.27331 |
Embodiment 1 promotes 6.0% or so relative to the transmitance of comparative example 1.Simulation curve is as shown in Figure 1：
As seen from the above embodiment, liquid-crystal composition provided by the present invention has big vertical dielectric, and then with more
The ratio of low parallel dielectric and vertical dielectric further has higher transmitance.Therefore, liquid crystal group provided by the present invention
IPS the or FFS type TFT liquid crystal display devices that object is suitable for are closed, the transmitance of liquid crystal display can be obviously improved, reduce backlight
The energy loss in source, especially suitable for fast-response FFS type TV liquid crystal displays.
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 is obvious for field technology personnel.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention belong to the scope of protection of present invention.
Claims (10)
1. a kind of high transmittance liquid-crystal composition, which is characterized in that comprising representated by least one general formula I in the composition
Compound representated by compound, at least one general formula II, compound and at least one representated by least one general formula III
Compound representated by general formula IV；
The general formula I is specially：
In the general formula I, R1Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be by O, S or CH
=CH is replaced；L1Represent H or F；
Ring A1It represents：
The general formula II is specially：
In the general formula II, R2、R3C is represented each independently1~C12Straight chained alkyl, alkoxy or C2~C12Straight-chain alkenyl；
Ring A2Represent trans- 1,4- cyclohexyl or 1,4- phenylenes；
The general formula III is specially：
In the general formula III, R4、R5C is represented each independently1~C12Straight chained alkyl, wherein one or more are non-conterminous
CH2It can be replaced by O, S or CH=CH；Ring A3、A4Trans- 1,4- cyclohexyl or 1,4- phenylenes are represented each independently；
The general formula IV is specially：
In the general formula IV, R6Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl, R7Represent C1~C12Straight chain alkane
Base；Ring A5Represent trans- 1,4- cyclohexyl or 1,4- phenylenes.
2. liquid-crystal composition according to claim 1, which is characterized in that compound representated by general formula I be selected from Formulas I A~
The one or more of compound representated by Formulas I B：
In the Formulas I A~IB, R1Represent C1~C7Straight chained alkyl；
Preferably, the compound representated by general formula I be selected from Formulas I A1~IA4, Formulas I B1~IB4 representated by compound one kind or
It is several：
3. liquid-crystal composition according to claim 1 or 2, which is characterized in that the compound choosing representated by the general formula II
From one or more in IIA, IIB：
In described IIA, IIB, R2Represent C1~C7Straight chained alkyl；R3Represent C1~C7Straight chained alkyl or unbranched alkoxy；
Preferably, the compound representated by general formula II is selected from the compound representated by Formula II A1~IIA20, IIB1~IIB20
It is one or more of：
4. according to the liquid-crystal composition described in claims 1 to 3 any one, which is characterized in that representated by the general formula III
Compound is one or more in IIIA, IIIB, IIIC：
In described IIIA, IIIB, IIIC, R4Represent C1~C7Straight chained alkyl；R5Represent C1~C7Straight chained alkyl, straight chain alcoxyl
Base or C2~C7Straight-chain alkenyl；
Preferably, the compound representated by general formula III be selected from formula III A1~IIIA30, IIIB1~IIIB24, IIIC1~
The one or more of compound representated by IIIC24：
5. according to the liquid-crystal composition described in Claims 1 to 4 any one, which is characterized in that the chemical combination representated by general formula IV
Object is selected from the one or more of the compound representated by formula IV A, IVB：
In described IVA, IVB, R6Represent C2~C7Straight chained alkyl or straight-chain alkenyl；R7Represent C1~C7Straight chained alkyl；
Preferably, compound representated by general formula IV is one or more in formula IV A1~IVA18, IVB1~IVB22 structures：
6. according to the liquid-crystal composition described in Claims 1 to 5 any one, which is characterized in that including following mass percent
Component：
Compound representated by (1) 3~30% general formula I；
Compound representated by (2) 3~30% general formula II；
Compound representated by (3) 40~70% general formula III；
Compound representated by (4) 3~30% general formula IV；
Preferably, include the component of following mass percent：
Compound representated by (1) 5~25% general formula I；
Compound representated by (2) 5~25% general formula II；
Compound representated by (3) 50~65% general formula III；
Compound representated by (4) 5~25% general formula IV；
It is highly preferred that including the component of following mass percent：
Compound representated by (1) 8~17% general formula I；
Compound representated by (2) 10~20% general formula II；
Compound representated by (3) 60.5~62% general formula III；
Compound representated by (4) 8~17% general formula IV.
7. liquid-crystal composition according to claim 6, which is characterized in that include the component of following mass percent：
Compound representated by (1) 3~6% general formula IA；
Compound representated by (2) 5~7% general formula IB；
Compound representated by (3) 12~14% general formula IIB；
Compound representated by (4) 55% general formula III A；
Compound representated by (5) 5.5~6% general formula III C；
Compound representated by (6) 10% general formula IVA；
Compound representated by (7) 3~7% general formula IVB.
8. liquid-crystal composition according to claim 6, which is characterized in that include the component of following mass percent：
9. according to the liquid-crystal composition described in claim 6~8 any one, which is characterized in that the mass percent of each component
The sum of be 100%.
10. the application of liquid-crystal composition in a liquid crystal display described in claim 1~9 any one, preferably in IPS or FFS
Application in mode display.
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| CN108531195A (en) * | 2018-03-30 | 2018-09-14 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid-crystal composition of high transmittance and its application |
| CN110484280A (en) * | 2019-07-29 | 2019-11-22 | 北京八亿时空液晶科技股份有限公司 | A kind of high transmittance liquid-crystal composition and its application |
| CN110511766A (en) * | 2019-07-29 | 2019-11-29 | 北京八亿时空液晶科技股份有限公司 | A kind of high transmittance liquid-crystal composition containing single oxygen helerocyclics and its application |
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