CN106635058B - Liquid-crystal composition and its display device - Google Patents
Liquid-crystal composition and its display device Download PDFInfo
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- CN106635058B CN106635058B CN201510737043.2A CN201510737043A CN106635058B CN 106635058 B CN106635058 B CN 106635058B CN 201510737043 A CN201510737043 A CN 201510737043A CN 106635058 B CN106635058 B CN 106635058B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 219
- 239000000203 mixture Substances 0.000 title claims abstract description 189
- 150000001875 compounds Chemical class 0.000 claims abstract description 213
- 125000004432 carbon atom Chemical group C* 0.000 claims description 20
- 125000000217 alkyl group Chemical group 0.000 claims description 16
- 229910052736 halogen Inorganic materials 0.000 claims description 7
- 150000002367 halogens Chemical class 0.000 claims description 7
- 125000003342 alkenyl group Chemical group 0.000 claims description 6
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 claims description 3
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 claims description 3
- DQXKOHDUMJLXKH-PHEQNACWSA-N (e)-n-[2-[2-[[(e)-oct-2-enoyl]amino]ethyldisulfanyl]ethyl]oct-2-enamide Chemical compound CCCCC\C=C\C(=O)NCCSSCCNC(=O)\C=C\CCCCC DQXKOHDUMJLXKH-PHEQNACWSA-N 0.000 claims 3
- 230000003287 optical effect Effects 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 description 31
- 0 CC(C)(*C(CC1)CCC1C(C)(C)C1CCC(*)CC1)C1CCC(*)CC1 Chemical compound CC(C)(*C(CC1)CCC1C(C)(C)C1CCC(*)CC1)C1CCC(*)CC1 0.000 description 18
- 239000000758 substrate Substances 0.000 description 16
- 230000004044 response Effects 0.000 description 9
- 238000009472 formulation Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- KTFHANHVOKLNOH-UHFFFAOYSA-N C=CC(CC1)CCC1C(CC1)CCC1c(cc1)ccc1F Chemical compound C=CC(CC1)CCC1C(CC1)CCC1c(cc1)ccc1F KTFHANHVOKLNOH-UHFFFAOYSA-N 0.000 description 1
- SVQFOOCNXHAXRL-UHFFFAOYSA-N C=CCCC(CC1)CCC1C(CC1)CCC1c(cc1)ccc1F Chemical compound C=CCCC(CC1)CCC1C(CC1)CCC1c(cc1)ccc1F SVQFOOCNXHAXRL-UHFFFAOYSA-N 0.000 description 1
- MUINAAJFIKCLCK-UHFFFAOYSA-N CC(C1)CC(C=C2)=C1CC2c(cc1)cc(F)c1-c1cc(F)c(C(Oc(cc2F)cc(F)c2F)(F)F)c(F)c1 Chemical compound CC(C1)CC(C=C2)=C1CC2c(cc1)cc(F)c1-c1cc(F)c(C(Oc(cc2F)cc(F)c2F)(F)F)c(F)c1 MUINAAJFIKCLCK-UHFFFAOYSA-N 0.000 description 1
- WIVNDAORCLJRGS-UHFFFAOYSA-N CC(CC1)CCC1C(CC1)CCC1c(cc1)ccc1F Chemical compound CC(CC1)CCC1C(CC1)CCC1c(cc1)ccc1F WIVNDAORCLJRGS-UHFFFAOYSA-N 0.000 description 1
- ZCSBSYVDYUJUOQ-UHFFFAOYSA-N CCC(C1)Cc2c1ccc(-c(cc1)cc(F)c1-c1cc(F)c(C(Oc(cc3F)cc(F)c3F)(F)F)c(F)c1)c2 Chemical compound CCC(C1)Cc2c1ccc(-c(cc1)cc(F)c1-c1cc(F)c(C(Oc(cc3F)cc(F)c3F)(F)F)c(F)c1)c2 ZCSBSYVDYUJUOQ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 239000012788 optical film Substances 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Liquid Crystal Substances (AREA)
Abstract
The invention discloses a kind of liquid-crystal compositions, including：The compound of the general formula I of 1-15% weight；The compound of the general formula II of 5-35% weight；The compound of the general formula III of 1-20% weight；The compound of the general formulae IV of 5-55% weight；And the compound of the general formula V of 20-70% weight.The invention also discloses the liquid crystal display devices of the liquid-crystal composition including the present invention.Liquid-crystal composition provided by the invention has the characteristics such as wider nematic temperature range, suitable optical anisotropy, higher dielectric anisotropy, higher clearing point, low threshold voltage and low viscosity, suitable for liquid crystal display.
Description
Technical Field
The present invention relates to a liquid crystal composition, and more particularly, to a liquid crystal composition having characteristics of a wide nematic phase temperature range, suitable optical anisotropy, high dielectric anisotropy, high clearing point, low threshold voltage, and low viscosity, and a liquid crystal display device including the same.
Background
Liquid crystal display devices are classified into types such as PC (phase change), TN (twisted nematic), STN (super twisted nematic), ECB (electrically controlled birefringence), OCB (optically compensated bend), IPS (in-plane switching), and VA (vertical alignment) according to a display mode of liquid crystal. The device is classified into a PM (passive matrix) type and an AM (active matrix) type according to a driving method of the device. PM is classified into static (static) and multiplex (multiplex) types. AM is classified into a TFT (thin film transistor), an MIM (metal insulator metal), and the like. The types of TFTs are amorphous silicon (amorphous silicon) and polycrystalline silicon (polysilicon). The latter is classified into a high temperature type and a low temperature type according to a manufacturing process. Liquid crystal display elements are classified into a reflection type using natural light, a transmission type using backlight, and a semi-transmission type using both light sources of natural light and backlight, depending on the type of light source.
Liquid crystal materials need to have suitably high dielectric anisotropy, optical anisotropy, and good low-temperature mutual solubility and thermal stability. In addition, the liquid crystal material should also have low viscosity and short response time, low threshold voltage and high contrast. The anisotropy of the composition is further described with reference to a commercially available liquid crystal display device. The temperature range of the nematic phase is associated with the operating temperature range of the element. The upper limit temperature of the nematic phase is preferably 70 ℃ or higher, and the lower limit temperature of the nematic phase is preferably-10 ℃ or lower. The viscosity of the composition correlates to the response time of the element. In order to display animation in the element, it is preferable that the response time of the element is short. Therefore, it is preferable that the viscosity of the composition is small, and it is more preferable that the viscosity of the composition is small at a low temperature.
The optical anisotropy of the composition correlates with the contrast of the element. In order to maximize the contrast ratio of the liquid crystal display element, the product value (Δ n × d) of the optical anisotropy (Δ n) of the liquid crystal composition and the thickness (d) of the liquid crystal layer may be designed to be a fixed value. The appropriate product value depends on the kind of operation mode, for example, the appropriate product value of the TN mode cell is about 0.45 μm; in this case, a composition having a large optical anisotropy is desirable for an element having a small thickness of a liquid crystal layer.
The liquid crystal display element containing the liquid crystal composition having appropriate optical anisotropy can increase the contrast. A liquid crystal display element containing a liquid crystal composition having a large absolute value of dielectric anisotropy can reduce the base voltage value, reduce the driving voltage, and further reduce the power consumption. The absolute value of the dielectric anisotropy is inversely related to the driving voltage. The liquid crystal display element of the liquid crystal composition with low driving voltage value can effectively reduce the power consumption of display, and particularly, the liquid crystal display element has longer endurance time for consumables, such as mobile phones, tablet computers and other portable electronic products.
The temperature range of the nematic phase is related to the temperature range in which the liquid crystal display device is used, and the liquid crystal display device containing the liquid crystal composition having a wide temperature range of the nematic phase can be used as a liquid crystal display device in a wider range of temperature.
A liquid crystal display element containing a liquid crystal composition having a low viscosity can shorten the response time. When the response time of the liquid crystal display element is short, the liquid crystal display element is suitable for animation display. In addition, when the liquid crystal composition is injected into the cell of the liquid crystal display device, the injection time can be shortened, and the workability can be improved.
Therefore, there is a need for a liquid crystal composition having a suitable nematic phase temperature range; the optical film has proper optical anisotropy, higher dielectric anisotropy and high cooling point; a lower threshold voltage; lower viscosity.
Disclosure of Invention
The invention aims to provide a liquid crystal composition which has the characteristics of wide nematic phase temperature range, proper optical anisotropy, high dielectric anisotropy, high clearing point, low threshold voltage and low viscosity. The display using the liquid crystal composition of the present invention has a fast response and excellent power saving performance.
The technical scheme adopted by the invention is to provide a liquid crystal composition, which comprises the following components in part by weight:
1-15% by weight of a compound of the formula I
5-35% by weight of a compound of the formula II
1 to 20% by weight of a compound of the formula III
5-55% by weight of a compound of the formula IV
20-70% by weight of a compound of formula V:
wherein,
R1、R2、R3and R4The same or different, each independently represents H, an alkyl group or an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms;
R5and R6The same or different, each independently represents an alkyl group or an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms;
to represent Wherein saidTo the lastOne or more H may be substituted by F;
are the same or different and each independently represents
Are the same or different and each independently represents
X1Represents an alkyl group having 1 to 5 carbon atoms or a halogen;
X2represents halogen or-OCF3；
L1And L2The same or different, each independently represents H or F;
Z1represents-CH2CH2-or a single bond;
Z2represents-COO-or a single bond;
m represents 0 or 1;
n represents 1 or 2; and when n is 2, the compound is,may be the same or different;
p represents 0, 1 or 2.
In some embodiments, R1And R3The alkyl groups may be the same or different and each independently represents an alkyl group having 1 to 5 carbon atoms.
In some embodiments, R2Represents H or an alkyl group having 1 to 5 carbon atoms.
In some embodiments, R4Represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms.
In some embodiments of the present invention, the substrate is,to represent In some embodiments, it is preferred that,to represent
In some embodiments of the present invention, the substrate is,to representIn some embodiments, it is preferred that,to represent
In some embodiments of the present invention, the substrate is,to represent
In some embodiments of the present invention, the substrate is,to represent
In some embodiments of the present invention, the substrate is,to representIn some embodiments, it is preferred that,to represent
In some embodiments, X1Represents an alkyl group having 2 to 4 carbon atoms or a halogen. In some embodiments, preferably, X1Represents halogen. In some embodiments, preferably, the halogen is F. Preferably, X1Represents an alkyl group having 2 to 5 carbon atoms or F.
In some embodiments, X2Represents F or-OCF3。
In some embodiments, Z1Represents a single bond.
In some embodiments, R4Represents an alkyl group having 1 to 5 carbon atoms.
In some embodiments, R5Represents an alkyl group having 1 to 5 carbon atoms.
In some embodiments, R6Represents an alkane having 1 to 5 carbon atomsA group or an alkenyl group having 2 to 5 carbon atoms.
In some embodiments of the present invention, the substrate is,to represent
In some embodiments, Z2Represents a single bond.
In some embodiments of the present invention, the substrate is,to representIn some embodiments, it is preferred that,to represent
In some embodiments, p represents 0 or 2.
In some embodiments of the present invention, preferably, the compound of formula i comprises 3 to 10% by weight of the total liquid crystal composition; the compound of the general formula II accounts for 10-30% of the total weight of the liquid crystal composition; the compound of the general formula III accounts for 1-15% of the total weight of the liquid crystal composition; the compound of the general formula IV accounts for 5-50% of the total weight of the liquid crystal composition; and the compound of the general formula V accounts for 25-65% of the total weight of the liquid crystal composition.
In some embodiments of the invention, the compound of formula i is selected from the group consisting of:
in some embodiments of the invention, the compound of formula ii is selected from the group consisting of:
in some embodiments, especially preferred are compounds of formulae II-1, II-5, II-8, II-9, II-10, and II-11.
In some embodiments of the present invention, preferably, the compound of formula II-1 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-2 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-3 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-4 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-5 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-6 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-7 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-8 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-9 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-10 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula ii-11 is selected from the group consisting of:
as a particularly preferred embodiment, the compound of formula ii is selected from the group consisting of:
in some embodiments of the invention, the compound of formula iii is selected from the group consisting of:
in some embodiments, especially preferred are compounds of formulae III-6 to III-9.
In some embodiments of the invention, the compound of formula iv is selected from the group consisting of:
in some embodiments, particularly preferred are compounds of formulae IV-1 to IV-3, IV-5 to IV-8.
In some embodiments of the present invention, preferably, the compound of formula IV-1 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-2 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-3 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-4 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-5 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-6 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-7 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-8 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-9 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-10 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula IV-11 is selected from the group consisting of:
as a particularly preferred embodiment, the compound of formula iv is selected from the group consisting of:
in some embodiments of the invention, the compound of formula v is selected from the group consisting of:
in some embodiments, especially preferred are compounds of formula V-1, V-4 to V-7.
In some embodiments of the present invention, preferably, the compound of formula v-1 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-2 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-3 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-4 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-5 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-6 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-7 is selected from the group consisting of:
as a particularly preferred embodiment, the compound of formula v is selected from the group consisting of:
according to another aspect of the present invention, there is also provided a liquid crystal display comprising the liquid crystal composition provided by the present invention.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
the liquid crystal composition provided by the invention has the characteristics of wider nematic phase temperature range, proper optical anisotropy, higher dielectric anisotropy, higher clearing point, low threshold voltage, low viscosity and the like; when the liquid crystal composition is applied to a liquid crystal display device, the liquid crystal display device can have quick response and excellent electricity-saving performance.
Unless otherwise stated, the ratios described in the present invention are weight ratios, all temperatures are in degrees celsius, and the test of the response time data has a box thickness of 7 μm.
Detailed Description
The invention will be illustrated below with reference to specific embodiments. It should be noted that the following examples are illustrative of the present invention, and are not intended to limit the present invention. Other combinations and various modifications within the spirit or scope of the present invention may be made without departing from the spirit or scope of the present invention.
For convenience of expression, in the following examples, the group structure of the liquid crystal composition is represented by the code listed in Table 1:
TABLE 1 radical structural code of liquid crystal compounds
Compounds of the following formula are exemplified:
the structural formula is represented by the code listed in Table 2, and can be expressed as: nCPUF, where n in the code represents the number of C atoms in the left alkyl group, e.g. n is"3" means that the alkyl group is-C3H7(ii) a C in the code represents cyclohexane.
The abbreviated codes of the test items in the following examples are as follows:
cp (. degree. C.): clearing points (transition temperature of liquid crystal from nematic phase to isotropic phase)
Δ n: optical anisotropy (589nm, 25 ℃ C.)
Δ ε: dielectric anisotropy (1KHz, 25 ℃ C.)
V10: threshold voltage (characteristic voltage at 10% relative contrast, normally white mode)
V90: saturation voltage (characteristic voltage at 90% relative contrast, normally white mode)
eta.flow viscosity (mm)2·s-125 ℃ unless otherwise stated)
TN-S(° c): transition temperature of liquid crystal from nematic phase to smectic phase
Wherein the refractive index anisotropy is obtained by testing an Abbe refractometer under a sodium lamp (589nm) light source at 25 ℃; the dielectric test cell was of the type TN90, the cell thickness being 7 μm.
and the testing condition is that the temperature is 25 ℃, the temperature is 1KHz, the testing box is TN90 type, and the box thickness is 7 mu m.
The components used in the following examples can be synthesized by a known method or obtained commercially. These synthesis techniques are conventional, and the resulting liquid crystal compounds were tested to meet the standards for electronic compounds.
Liquid crystal compositions were prepared according to the compounding ratios of the liquid crystal compositions specified in the following examples. The liquid crystal composition is prepared according to the conventional method in the field, such as heating, ultrasonic wave, suspension and the like, and is mixed according to the specified proportion.
Comparative example 1
The liquid crystal composition of comparative example 1, which was filled between two substrates of a liquid crystal display and subjected to a performance test, was prepared according to the compounds and weight percentages listed in table 2, and the test data are shown in the following table:
TABLE 2 liquid crystal composition formulations and their test properties
Comparative example 2
The liquid crystal composition of comparative example 2, which was filled between two substrates of a liquid crystal display and subjected to a performance test, was prepared according to the compounds and weight percentages listed in table 3, and the test data are shown in the following table:
TABLE 3 liquid crystal composition formula and its test performance
Example 1
The liquid crystal composition of example 1 was prepared according to the compounds and weight percentages listed in table 4, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 4 liquid crystal composition formula and its test performance
Example 2
The liquid crystal composition of example 2 was prepared according to the compounds and weight percentages listed in table 5, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 5 liquid crystal composition formulations and their test properties
Example 3
The liquid crystal composition of example 3 was prepared according to the compounds and weight percentages listed in table 6, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 6 liquid crystal composition formula and its test performance
Example 4
The liquid crystal composition of example 4 was prepared according to the compounds and weight percentages listed in table 7, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 7 liquid crystal composition formulations and their test properties
Example 5
The liquid crystal composition of example 5 was prepared according to the compounds and weight percentages listed in table 8, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 8 liquid crystal composition formulations and their test properties
Example 6
The liquid crystal composition of example 6 was prepared according to the compounds and weight percentages listed in table 9, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 9 liquid crystal composition formulations and their test properties
Example 7
The liquid crystal composition of example 7 was prepared according to the compounds and weight percentages listed in table 10, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 10 liquid crystal composition formulations and their test properties
From the data of the above examples, it can be seen that the liquid crystal composition provided by the present invention has suitable optical anisotropy, relatively large dielectric anisotropy, relatively wide nematic phase temperature range, relatively high clearing point, low threshold voltage and low viscosity, and can be applied to a liquid crystal display to meet the performance requirements of fast response and power saving of the liquid crystal display.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and equivalent changes and modifications made according to the spirit of the present invention should be covered thereby.
Claims (12)
1. A liquid crystal composition, comprising:
1-15% by weight of a compound of the formula I
5-35% by weight of a compound of the formula II
1 to 20% by weight of a compound of the formula III
5-55% by weight of a compound of the formula IV
20-70% by weight of a compound of formula V:
wherein,
R1、R2、R3and R4The same or different, each independently represents H, an alkyl group or an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms;
R5and R6The same or different, each independently represents an alkyl group or an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms;
to represent Wherein saidOne or more of H may be substituted by F;
are the same or different and each independently represents
Are the same or different and each independently represents
X1Represents an alkyl group having 1 to 5 carbon atoms or a halogen;
X2represents halogen or-OCF3；
L1And L2The same or different, each independently represents H or F;
Z1represents-CH2CH2-or a single bond;
Z2represents-COO-or a single bond;
m represents 0 or 1;
n represents 1 or 2; when the number n is 2, the compound is,may be the same or different;
p represents 0, 1 or 2.
2. The liquid crystal composition of claim 1, wherein the compound of formula i comprises 3-10% by weight of the total liquid crystal composition; the compound of the general formula II accounts for 10-30% of the total weight of the liquid crystal composition; the compound of the general formula III accounts for 1-15% of the total weight of the liquid crystal composition; the compound of the general formula IV accounts for 5-50% of the total weight of the liquid crystal composition; and the compound of the general formula V accounts for 25-65% of the total weight of the liquid crystal composition.
3. The liquid crystal composition of claim 2, wherein the compound of formula i is selected from the group consisting of:
4. the liquid crystal composition of claim 2, wherein the compound of formula ii is selected from the group consisting of:
wherein R is2As defined in claim 1.
5. The liquid crystal composition of claim 2, wherein the compound of formula iii is selected from the group consisting of:
6. the liquid crystal composition of claim 2, wherein the compound of formula iv is selected from the group consisting of:
wherein R is4As defined in claim 1.
7. The liquid crystal composition of claim 2, wherein the compound of formula v is selected from the group consisting of:
wherein R is5And R6As defined in claim 1.
8. The liquid crystal composition of claim 4, wherein the compound of formula II-1 is selected from the group consisting of:
the compound of formula II-2 is selected from the group consisting of:
the compound of formula II-3 is selected from the group consisting of:
the compound of formula II-4 is selected from the group consisting of:
the compound of formula II-5 is selected from the group consisting of:
the compound of formula II-6 is selected from the group consisting of:
the compound of formula II-7 is selected from the group consisting of:
the compound of formula II-8 is selected from the group consisting of:
the compound of formula II-9 is selected from the group consisting of:
the compounds of formula II-10 are selected from the group consisting of:
the compounds of formula II-11 are selected from the group consisting of:
9. the liquid crystal composition of claim 6, wherein the compound of formula iv-1 is selected from the group consisting of:
the compound of the general formula IV-2 is selected from the group consisting of:
the compound of formula IV-3 is selected from the group consisting of:
the compound of formula IV-4 is selected from the group consisting of:
the compound of formula IV-5 is selected from the group consisting of:
the compound of formula IV-6 is selected from the group consisting of:
the compound of formula IV-7 is selected from the group consisting of:
the compound of formula IV-8 is selected from the group consisting of:
the compound of formula IV-9 is selected from the group consisting of:
the compound of formula IV-10 is selected from the group consisting of:
the compound of formula IV-11 is selected from the group consisting of:
10. the liquid crystal composition of claim 7, wherein the compound of formula v-1 is selected from the group consisting of:
the compound of formula V-2 is selected from the group consisting of:
the compound of formula V-3 is selected from the group consisting of:
the compound of formula V-4 is selected from the group consisting of:
the compound of formula V-5 is selected from the group consisting of:
the compound of formula V-6 is selected from the group consisting of:
the compound of formula v-7 is selected from the group consisting of:
11. the liquid crystal composition according to any one of claims 1 to 10, wherein the liquid crystal composition comprises:
a compound V-7-2 accounting for 3 percent of the total weight of the liquid crystal composition;
a compound IV-3-1 accounting for 7 percent of the total weight of the liquid crystal composition;
a compound IV-3-2 accounting for 7 percent of the total weight of the liquid crystal composition;
a compound IV-3-3 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-8-1 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-8-2 accounting for 6 percent of the total weight of the liquid crystal composition;
29 percent of compound V-1-4 in percentage by weight of the total weight of the liquid crystal composition;
a compound V-6-1 accounting for 2 percent of the total weight of the liquid crystal composition;
a compound V-6-2 accounting for 2 percent of the total weight of the liquid crystal composition;
compound II-10-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-10-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-8-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-8-3 accounting for 6 percent of the total weight of the liquid crystal composition;
compound II-8-4 accounting for 6 percent of the total weight of the liquid crystal composition;
compound III-7 in an amount of 2% by weight based on the total weight of the liquid crystal composition; and
3 percent of compound I-2 accounting for the total weight of the liquid crystal composition,
or the liquid crystal composition comprises:
a compound V-7-2 accounting for 3 percent of the total weight of the liquid crystal composition;
a compound IV-3-1 accounting for 7 percent of the total weight of the liquid crystal composition;
a compound IV-3-2 accounting for 7 percent of the total weight of the liquid crystal composition;
a compound IV-3-3 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-8-1 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-8-2 accounting for 6 percent of the total weight of the liquid crystal composition;
29 percent of compound V-1-4 in percentage by weight of the total weight of the liquid crystal composition;
compound III-7 in an amount of 2% by weight based on the total weight of the liquid crystal composition;
compound III-8 in an amount of 2% by weight based on the total weight of the liquid crystal composition;
compound II-10-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-10-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-8-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-8-3 accounting for 6 percent of the total weight of the liquid crystal composition;
compound II-8-4 accounting for 6 percent of the total weight of the liquid crystal composition; and
5 percent of compound I-2 accounting for the total weight of the liquid crystal composition,
or the liquid crystal composition comprises:
a compound V-7-2 accounting for 3 percent of the total weight of the liquid crystal composition;
a compound IV-3-1 accounting for 7 percent of the total weight of the liquid crystal composition;
a compound IV-3-2 accounting for 7 percent of the total weight of the liquid crystal composition;
a compound IV-3-3 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-8-1 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-8-2 accounting for 6 percent of the total weight of the liquid crystal composition;
29 percent of compound V-1-4 in percentage by weight of the total weight of the liquid crystal composition;
compound III-7 in an amount of 2% by weight based on the total weight of the liquid crystal composition;
compound III-8 in an amount of 2% by weight based on the total weight of the liquid crystal composition;
compound II-9-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-9-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-8-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-8-3 accounting for 4% of the total weight of the liquid crystal composition;
compound II-8-4 accounting for 4% of the total weight of the liquid crystal composition;
compound I-2 accounting for 5 percent of the total weight of the liquid crystal composition; and
5 percent of compound I-3 accounting for the total weight of the liquid crystal composition,
or the liquid crystal composition comprises:
a compound IV-3-2 accounting for 5 percent of the total weight of the liquid crystal composition;
7% of compound I-2 by weight of the total liquid crystal composition;
compound V-1-4 accounting for 46 percent of the total weight of the liquid crystal composition;
compound V-1-7 accounting for 10 percent of the total weight of the liquid crystal composition;
3.5 percent of compound V-6-1 based on the total weight of the liquid crystal composition;
3.5 percent of compound V-6-2 based on the total weight of the liquid crystal composition;
compound III-7 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
compound III-8 in an amount of 4% by weight based on the total weight of the liquid crystal composition;
compound III-9 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
compound II-8-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-8-3 accounting for 4% of the total weight of the liquid crystal composition; and
a compound II-8-4 accounting for 3 percent of the total weight of the liquid crystal composition,
or the liquid crystal composition comprises:
a compound IV-3-2 accounting for 5 percent of the total weight of the liquid crystal composition;
3 percent of compound I-3 in percentage by total weight of the liquid crystal composition;
compound I-4 accounting for 4% of the total weight of the liquid crystal composition;
compound V-1-4 accounting for 46 percent of the total weight of the liquid crystal composition;
compound V-1-7 accounting for 10 percent of the total weight of the liquid crystal composition;
3.5 percent of compound V-6-1 based on the total weight of the liquid crystal composition;
3.5 percent of compound V-6-2 based on the total weight of the liquid crystal composition;
compound III-7 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
a compound IV-3-4 accounting for 4% of the total weight of the liquid crystal composition;
a compound IV-3-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-8-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-8-3 accounting for 4% of the total weight of the liquid crystal composition; and
a compound II-8-4 accounting for 3 percent of the total weight of the liquid crystal composition,
or the liquid crystal composition comprises:
a compound V-7-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound V-5-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-2 accounting for 10 percent of the total weight of the liquid crystal composition;
a compound IV-6-2 accounting for 14 percent of the total weight of the liquid crystal composition;
a compound IV-5-1 accounting for 10 percent of the total weight of the liquid crystal composition;
a compound IV-5-2 accounting for 10 percent of the total weight of the liquid crystal composition;
a compound IV-8-1 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-8-2 accounting for 6 percent of the total weight of the liquid crystal composition;
17% of compound V-1-4 by weight of the total liquid crystal composition;
compound III-7 in an amount of 2% by weight based on the total weight of the liquid crystal composition;
compound II-10-1 accounting for 2 percent of the total weight of the liquid crystal composition;
compound II-10-2 accounting for 3 percent of the total weight of the liquid crystal composition;
compound II-8-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-8-3 accounting for 4% of the total weight of the liquid crystal composition; and
a compound II-8-4 accounting for 4 percent of the total weight of the liquid crystal composition,
or the liquid crystal composition comprises:
a compound V-7-2 accounting for 2 percent of the total weight of the liquid crystal composition;
compound V-5-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-3 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-6-2 accounting for 14 percent of the total weight of the liquid crystal composition;
a compound IV-5-1 accounting for 10 percent of the total weight of the liquid crystal composition;
a compound IV-5-2 accounting for 10 percent of the total weight of the liquid crystal composition;
a compound IV-8-1 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-8-2 accounting for 6 percent of the total weight of the liquid crystal composition;
17% of compound V-1-4 by weight of the total liquid crystal composition;
a compound V-6-2 accounting for 2 percent of the total weight of the liquid crystal composition;
compound II-9-1 accounting for 2 percent of the total weight of the liquid crystal composition;
compound II-9-2 accounting for 3 percent of the total weight of the liquid crystal composition;
compound II-8-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-8-3 accounting for 4% of the total weight of the liquid crystal composition;
compound II-8-4 accounting for 4% of the total weight of the liquid crystal composition; and
compound iii-7 in an amount of 2% by weight based on the total weight of the liquid crystal composition.
12. A liquid crystal display device comprising the liquid crystal composition according to any one of claims 1 to 11.
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| CN111117659A (en) * | 2018-10-30 | 2020-05-08 | 江苏和成显示科技有限公司 | Liquid crystal composition and display device thereof |
| CN111117649B (en) * | 2018-10-30 | 2022-02-22 | 江苏和成显示科技有限公司 | Liquid crystal composition and display device thereof |
| CN111117651B (en) * | 2018-10-30 | 2022-02-22 | 江苏和成显示科技有限公司 | Liquid crystal composition and display device thereof |
| CN111117645B (en) * | 2018-10-30 | 2022-01-18 | 江苏和成显示科技有限公司 | Liquid crystal composition with high transmittance and liquid crystal display device thereof |
| CN111117654B (en) * | 2018-10-30 | 2022-02-22 | 江苏和成显示科技有限公司 | Liquid crystal composition and display device thereof |
| CN111117647B (en) * | 2018-10-30 | 2022-02-22 | 江苏和成显示科技有限公司 | Liquid crystal composition and display device thereof |
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