CN105567251A - Liquid crystal composition - Google Patents
Liquid crystal composition Download PDFInfo
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- CN105567251A CN105567251A CN201610021901.8A CN201610021901A CN105567251A CN 105567251 A CN105567251 A CN 105567251A CN 201610021901 A CN201610021901 A CN 201610021901A CN 105567251 A CN105567251 A CN 105567251A
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- 0 *c1c(*)c(*)c(C(CC2)CCC2C(CC2)CCC2I)cc1 Chemical compound *c1c(*)c(*)c(C(CC2)CCC2C(CC2)CCC2I)cc1 0.000 description 4
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- C—CHEMISTRY; METALLURGY
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- 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
- C09K19/06—Non-steroidal liquid crystal compounds
- 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
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- C—CHEMISTRY; METALLURGY
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- 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
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- 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
- C09K19/06—Non-steroidal liquid crystal compounds
- 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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- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- 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)
- C09K2019/301—Cy-Cy-Ph
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Abstract
The invention discloses a liquid crystal composition. The liquid crystal composition comprises one or more compounds shown in the formula I and one or more compounds shown in the formula II, and at least further comprises one or more compounds shown in the formula II-B contained in the formula II, wherein the formula I, the formula II and the formula II-B are shown in the description, and all substituent groups are defined. The liquid crystal composition has low viscosity gamma 1, moderate dielectric anisotropy delta epsilon and moderate optical anisotropism delta n, and quick response of liquid crystal displaying can be achieved.
Description
Technical field
The present invention relates to field of liquid crystal display, be specifically related to a kind of liquid-crystal composition and comprise liquid crystal display device or the liquid-crystal display of this liquid-crystal composition.
Background technology
At present, it is more and more wider that the range of application of liquid crystalline cpd is expanded, and it can be applicable in polytype indicating meter, electro-optical device, sensor.For liquid crystalline cpd of a great variety in above-mentioned display field, wherein nematic liquid crystal is most widely used.Nematic liquid crystal has been applied in passive TN, STN matrix display and has had in the system of tft active matrix.
For thin-film transistor technologies (TFT-LCD) Application Areas, although market is very huge in recent years, technology is also ripe gradually, people to the requirement of technique of display also in continuous raising, especially in realization response fast, driving voltage is reduced to reduce the aspects such as power consumption.Liquid crystal material as one of important photoelectron material of liquid-crystal display, the effect important to the performance improving liquid-crystal display.
As liquid crystal material, need to have good chemistry and thermostability and the stability to electric field and electromagnetic radiation.And as thin-film transistor technologies (TFT-LCD) liquid crystal material, not only need to have as outside upward stability, also should have the performances such as wider nematic temperature range, suitable degree of birefringence anisotropy, very high resistivity, good anti-ultraviolet property, high electric charge conservation rate and low-steam pressure.
For dynamic menu display application, eliminate display frame ghost and hangover, require that liquid crystal has very fast response speed, therefore require that liquid crystal has lower rotary viscosity γ
1; In addition, for handheld device, in order to reduce equipment energy consumption, wish that the driving voltage of liquid crystal is low as far as possible; And for the indicating meter of the purposes such as TV, the driving voltage for liquid crystal requires it is not so low.
The viscosity of liquid crystalline cpd, especially rotary viscosity γ
1direct affect liquid crystal power up after time of response, no matter be rise time (t
on) or fall time (t
off), all with the rotary viscosity γ of liquid crystal
1proportional, rise time (t
on) due to relevant with liquid crystal cell and driving voltage, can be regulated with reduction liquid crystal cell box is thick by the method strengthening driving voltage; And fall time (t
off) have nothing to do with driving voltage, mainly thick relevant with liquid crystal cell box with the elastic constant of liquid crystal, the decline that box is thick can reduce fall time (t
off), and under different display modes, the mode of motion of liquid crystal molecule is different, TN, IPS, VA Three models respectively with average elastic constants K, distortion elastic constant, bend elastic constant inversely.
According to liquid crystal continuum theory, after there is deformation in various different liquid crystal under external force (electric field, magnetic field) effect, can by intermolecular interaction, original shape is returned in meeting " resilience "; Same, liquid crystal is also because intermolecular interaction force forms " viscosity ".The subtle change of liquid crystal molecule, can make the conventional parameter performance of liquid crystal that significantly change occurs, these changes have plenty of certain rule, seeming of having not easily finds rule, also obvious impact can be produced for the interaction between liquid crystal molecule, these impacts are very delicate, also do not form very perfect theoretical explanation so far.
The viscosity of liquid crystal is relevant with liquid crystal molecule structure, and the relation studied between the viscosity of the liquid crystal system that different liquid crystal molecule is formed and liquid crystal molecule structure is one of vital task of dispensing liquid crystal slip-stick artist.
Summary of the invention
The object of the present invention is to provide a kind of liquid-crystal composition and comprise liquid crystal display device or the liquid-crystal display of this liquid-crystal composition, this liquid-crystal composition has lower viscosity, quick response can be realized, there is moderate dielectric anisotropy Δ ε, moderate optical anisotropy Δ n, the high stability to light and heat simultaneously.The liquid crystal display device or the liquid-crystal display that comprise this liquid-crystal composition have the performances such as wider nematic temperature range, suitable degree of birefringence anisotropy, very high resistivity, good anti-ultraviolet property, high electric charge conservation rate and low-steam pressure.
In order to realize above-mentioned Advantageous Effects, the invention provides a kind of liquid-crystal composition, described liquid-crystal composition comprises compound shown in one or more formulas I and one or more formulas II compound, and described liquid-crystal composition must comprise compound shown in compound Chinese style II-B shown in one or both formulas II, namely, when only comprising compound shown in a kind of formula II in described liquid-crystal composition, compound shown in described a kind of formula II is any one in compound shown in formula II-B; When comprising compound shown in two kinds of formulas II in described liquid-crystal composition, compound shown in described two kinds of formulas II can be the compound of non-II-B in compound shown in a kind of formula II-B and a kind of formula II, also can be any two kinds of compounds in compound shown in formula II-B; When comprising in described liquid-crystal composition more than compound shown in two kinds of formulas II, described can be compound shown in a kind of formula II-B and the compound more than II-B non-in a kind of formula II more than compound shown in two kinds of formulas II, also can be the compound of non-II-B in any two kinds of compounds in compound shown in formula II-B and at least one formula II
Wherein, X
1, X
2independently represent H or F separately, but can not be F in same molecular formula simultaneously, can not be H simultaneously;
R
0, R
1, R
2, R
3represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8 independently of one another, and R
0, R
1, R
2, R
3in any one CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl; Y represents ethyl or vinyl.
independently represent Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene or Isosorbide-5-Nitrae-phenylidene separately.
Liquid-crystal composition of the present invention preferably do not comprise containing-CN liquid crystalline cpd, do not comprise containing pyridine, pyrimidine ring compound.
The liquid crystalline cpd of the present invention further preferably not containing condensed cyclic structure.
Liquid-crystal composition Δ n provided by the present invention [589nm, 25 DEG C] >0.08, Δ ε [1KHz, 25 DEG C] >2 or Δ ε [1KHz, 25 DEG C] ﹤-2, clearing point Cp>70.0 DEG C, rotary viscosity γ
1[25 DEG C] are between 40 ~ 120mPas.
Liquid-crystal composition provided by the present invention, shown in described liquid-crystal composition formula I, compound preferred mass degree is 2-25%, one of formula II-B compound or whole two kinds of preferred mass degrees are 5-55%, and shown in one or more formulas II, compound quality degree is preferably 0-30%.
Liquid-crystal composition of the present invention is not containing the liquid crystal composition containing-CN structure and containing pyridine, pyrimidine ring compound.-CN has very large permanent dipole moment, and electronic cloud is horn of plenty comparatively, is easy to Liquidity limit thus causes ionic solvation, makes the decline of liquid crystal electric property, such as electric charge conservation rate VHR, electricalresistivityρ, power consumption etc.; Pyridine, pyrimidine ring compound due under UV electronics be easy to be excited and cause quality to decline.
Due to various substituent difference, formula I is specifically preferably compound shown in formula I 1-I 8:
Wherein, R
11represent that carbonatoms is alkyl, the R of 1-10
12represent that carbonatoms is thiazolinyl, the R of 2-10
21represent that carbonatoms is alkyl, the R of 1-10
22represent that carbonatoms is the alkoxyl group of 1-10.
Compound shown in formula I generally has the mutual solubility good with other liquid crystal, especially containing R
12represent that carbonatoms is thiazolinyl, the R of 2-10
21compound shown in the formula I of the alkyl that expression carbonatoms is 1-10.
The optical anisotropy Δ n of I 1-I 8 compound is totally less than normal, is generally less than the Δ n of mixed liquid crystal, so, may be used for the Δ n regulating mixed liquid crystal to low direction.When containing R
22when representing that carbonatoms is the alkoxyl group of 1-10, because the conjugation of Sauerstoffatom participates in, Δ n is slightly large.
Liquid crystal compound of the present invention contains one of formula II-B compound or two kinds
Liquid crystal compound of the present invention can contain formula II compound
Formula II compound is preferably compound shown in formula II-1 to II-10:
Liquid-crystal composition of the present invention can for being positive liquid crystal composition, and described liquid-crystal composition can also comprise compound shown in one or more formulas III
R
4represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8; And R
4in any one or multiple CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl.
represent independently of one another:
wherein a kind of;
M represents 1,2; Z
1, Z
2represent singly-bound ,-CF independently of one another
2o-,-CH
2cH
2-,-CH
2o-; Y represents that the carbonatoms that the carbonatoms that F, fluorine replace is the alkyl of 1-5, the carbonatoms of fluorine replacement is the alkoxyl group of 1-5, fluorine replaces is the alkenyl of 2-5, the carbonatoms of fluorine replacement is the alkenyloxy of 3-8;
Compound shown in one or more formulas III described is III 1-III 22 compound
Wherein, X
1, X
2independently represent H or F separately, can not be F in same molecular formula, can not be H simultaneously simultaneously;
R
4represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8, and R
4in any one CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl;
(F) H or F is represented;
Y
2represent that the carbonatoms that the carbonatoms that F, fluorine replace is the alkyl of 1-5, the carbonatoms of fluorine replacement is the alkoxyl group of 1-5, fluorine replaces is the alkenyl of 2-5, the carbonatoms of fluorine replacement is the alkenyloxy of 3-8.
Liquid-crystal composition of the present invention can be negative liquid crystal composition, and described liquid-crystal composition can also comprise one or more compounds shown in formula IV
Wherein, R
5, R
6represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8 independently of one another, and R
5, R
6in any one CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl; Z
3, Z
4represent singly-bound ,-CH independently of one another
2cH
2-,-CH
2o-;
represent independently of one another
wherein a kind of; M represents 1,2; N represents 0,1,2.
One or more compounds shown in formula IV described are IV 1-IV 11 compound
R
5, R
6represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8 independently of one another, and R
5, R
6in any one CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl;
Liquid-crystal composition of the present invention can be negative liquid crystal composition, and described liquid-crystal composition can also comprise one or more compounds shown in formula V
R
7, R
8represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8 independently of one another, and R
5, R
6in any one CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl.
Compound shown in formula V is preferably:
R
81represent that carbonatoms is the alkoxyl group of 1-10.
The different ratios of each composition of liquid-crystal composition, slightly discrepant performance can be shown, the such as nematic phase of dielectric anisotropy Δ ε, optical anisotropy Δ n, liquid crystal is converted into the transition temperature point CP of liquid, low temperature stability inferior all can difference to some extent, can be applied to dissimilar display device, but identical feature is its rotary viscosity γ
1lower.Be applied to liquid crystal display device, quick response can be realized.
Can also add the doping agent of various function in liquid crystalline cpd provided by the present invention, between the preferred 0.01-1% of dopant content, these doping agents are antioxidant, UV light absorber, chiral agent mainly.
Antioxidant, UV light absorber are preferred:
S represents the integer of 1-10.
Chiral agent preferred (left-handed or dextrorotation):
The invention still further relates to the liquid crystal display device or liquid-crystal display that comprise any one liquid-crystal composition above-mentioned; Described liquid crystal display device or liquid-crystal display are active matrix display element or indicating meter or passive matrix display element or indicating meter.
Described liquid crystal display device or the preferred active matrix addressed liquid crystal display element of liquid-crystal display or liquid-crystal display.
Described active matrix display element or indicating meter are specially TN-TFT or IPS-TFT liquid crystal display device or indicating meter.
Liquid-crystal composition provided by the present invention has lower viscosity, can realize quick response, has moderate dielectric anisotropy Δ ε, moderate optical anisotropy Δ n, the high stability to light and heat simultaneously.
Comprise the liquid crystal material of liquid-crystal composition provided by the present invention, not only there is good chemistry and thermostability and the stability to electric field and electromagnetic radiation.And, as thin-film transistor technologies (TFT-LCD) liquid crystal material, also there is the performances such as wider nematic temperature range, suitable degree of birefringence anisotropy, very high resistivity, good anti-ultraviolet property, high electric charge conservation rate and low-steam pressure.
Embodiment
Below in conjunction with specific embodiment, the present invention is further elaborated, but the present invention is not limited to following examples.Described method is ordinary method if no special instructions.Described raw material all can obtain from open commercial sources if no special instructions.Described per-cent if no special instructions, is mass percent.
In following embodiment,
CP represents clearing point, and directly use the micro-thermal analyzer of WRX-1S to measure, setting temperature rise rate is 3 DEG C/min.
Δ n represents optical anisotropy (589nm, 20oC),
Δ ε represents dielectric anisotropy (25 DEG C, 1KHz, HP4284A, 5.2 microns of left-handed boxes of TN),
γ
1rotary viscosity (mpas) when representing 20 DEG C, VHR (%) represents electric charge conservation rate (5V, 60Hz, 20 DEG C), and ρ (× 1013 Ω cm) represents resistivity (20 DEG C)
The tester of voltage retention VHR (%) and electricalresistivityρ (× 10
13Ω cm) be TOYO06254 and TOYO6517 type liquid crystal evaluation of physical property system (testing cassete is 7.0 microns for probe temperature 20 DEG C, time 16ms)
The present patent application embodiment liquid crystal monomer structure coded representation, the coded representation method of liquid crystal ring structure, end group, linking group sees the following form (one), shows (two)
Table (one): the corresponding code of ring structure
Table (two): end group and the corresponding code linking group
Citing:
Embodiment 1
Embodiment 2
Embodiment 3
Embodiment 4
Embodiment 5
Embodiment 6
Embodiment 7
Embodiment 8
Embodiment 9
As can be seen from the above embodiments: liquid-crystal composition of the present invention has lower rotary viscosity γ 1, for liquid-crystal display, quick response can be realized, there is moderate dielectric anisotropy Δ ε, moderate optical anisotropy Δ n, the high stability to heat simultaneously.Be particularly suitable for TN, IPS, VA pattern liquid crystal material.
Claims (10)
1. a liquid-crystal composition, is characterized in that, described liquid-crystal composition comprises compound shown in one or more formulas I and one or more formulas II compound, and at least also comprises the compound of contained formula II-B in one or both formulas II in described liquid-crystal composition,
Wherein, X
1, X
2one of represent F, another is H;
R
0, R
1, R
2, R
3represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8 independently of one another, and R0, R1, R
2, R
3in any one or more disjunct CH
2can be substituted by cyclopentyl, cyclobutyl, cyclopropyl ,-O-; Y represents ethyl or vinyl;
independently represent Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene or Isosorbide-5-Nitrae-phenylidene separately.
2. liquid-crystal composition according to claim 1, is characterized in that, compound shown in one or more formulas I described is one or more compounds in compound shown in formula I 1-I 8; One or more compounds of contained II 1 to II 10 compound of compound shown in described formula II; Compound shown in described one or more formulas II-B is one or both compounds in compound shown in formula II-B-1 to II-B-2,
Wherein, R
11represent that carbonatoms is alkyl, the R of 1-10
12represent that carbonatoms is thiazolinyl, the R of 2-10
21represent that carbonatoms is alkyl, the R of 1-10
22represent that carbonatoms is the alkoxyl group of 1-10.
3. liquid-crystal composition according to claim 1 and 2, it is characterized in that, shown in described liquid-crystal composition formula I, compound quality degree is 2-25%, and formula II-B mass percentage content is 5-55%, and shown in one or more formulas II, compound quality degree is 0-30%.
4. liquid-crystal composition according to claim 1, is characterized in that, is positive liquid crystal composition, and described liquid-crystal composition also comprises compound shown in one or more formulas III
R
4represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8; And R
4in any one or multiple CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl;
represent independently of one another:
wherein a kind of;
M represents 1,2; Z
1, Z
2represent singly-bound ,-CF2O-,-CH2CH2-,-CH2O-independently of one another;
Y
2represent that the carbonatoms that the carbonatoms that F, fluorine replace is the alkyl of 1-5, the carbonatoms of fluorine replacement is the alkoxyl group of 1-5, fluorine replaces is the alkenyl of 2-5, the carbonatoms of fluorine replacement is the alkenyloxy of 3-8.
5. liquid-crystal composition according to claim 4, is characterized in that, compound shown in one or more formulas III described is III 1-III 22 compound
Wherein, X
1, X
2independently represent H or F separately, but can not be F in same molecular formula simultaneously, can not be H simultaneously;
R
4represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8, and R
4in any one CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl; (F) H or F is represented.
Y
2represent that the carbonatoms that the carbonatoms that F, fluorine replace is the alkyl of 1-5, the carbonatoms of fluorine replacement is the alkoxyl group of 1-5, fluorine replaces is the alkenyl of 2-5, the carbonatoms of fluorine replacement is the alkenyloxy of 3-8.
6. the arbitrary liquid-crystal composition according to claims 1 to 3, is characterized in that, be negative liquid crystal composition, described liquid-crystal composition also comprises one or more compounds shown in formula IV
Wherein, R
5, R
6represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8 independently of one another, and R
5, R
6in any one CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl; Z
3, Z
4represent singly-bound ,-CH independently of one another
2cH
2-,-CH
2o-;
represent independently of one another
wherein a kind of; M represents 1,2; N represents 0,1,2.
7. liquid-crystal composition according to claim 6, is characterized in that, one or more compounds shown in formula IV described are IV 1-IV 11 compound
R
5, R
6represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8 independently of one another, and R
5, R
6in any one CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl.
8. the arbitrary liquid-crystal composition according to claims 1 to 3, is characterized in that, be negative liquid crystal composition, described liquid-crystal composition also comprises one or more compounds shown in formula V
R
7, R
8represent that carbonatoms is the alkyl of 1-10, the carbonatoms of fluorine replacement is the alkyl of 1-10, carbonatoms is the alkoxyl group of 1-10, the carbonatoms of fluorine replacement is the alkoxyl group of 1-10, carbonatoms is the alkenyl of 2-10, the carbonatoms of fluorine replacement is the alkenyl of 2-10, carbonatoms is the alkenyloxy of 3-8 or the carbonatoms of fluorine replacement is the alkenyloxy of 3-8 independently of one another, and R
5, R
6in any one CH
2can be substituted by cyclopentyl, cyclobutyl or cyclopropyl.
9. one kind comprises liquid crystal display device or the liquid-crystal display of arbitrary described liquid-crystal composition in claim 1-8, it is characterized in that, described liquid crystal display device or liquid-crystal display are active matrix display element or indicating meter, or passive matrix display element or indicating meter.
10. liquid crystal display device according to claim 9 or liquid-crystal display, is characterized in that, described active matrix display element or indicating meter are TN-TFT or IPS-TFT or VA-TFT liquid crystal display device or indicating meter.
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| CN107557019A (en) * | 2016-06-30 | 2018-01-09 | 石家庄诚志永华显示材料有限公司 | Liquid-crystal composition |
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Also Published As
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| TW201725256A (en) | 2017-07-16 |
| TWI608079B (en) | 2017-12-11 |
| CN105567251B (en) | 2018-07-31 |
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