CN115785970A - Liquid crystal composition and liquid crystal display panel - Google Patents
Liquid crystal composition and liquid crystal display panel Download PDFInfo
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- CN115785970A CN115785970A CN202211484458.XA CN202211484458A CN115785970A CN 115785970 A CN115785970 A CN 115785970A CN 202211484458 A CN202211484458 A CN 202211484458A CN 115785970 A CN115785970 A CN 115785970A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 147
- 239000000203 mixture Substances 0.000 title claims abstract description 88
- 150000001875 compounds Chemical class 0.000 claims abstract description 290
- 125000004432 carbon atom Chemical group C* 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 23
- 125000003342 alkenyl group Chemical group 0.000 claims description 13
- 125000000217 alkyl group Chemical group 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 11
- 238000013329 compounding Methods 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 238000003848 UV Light-Curing Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 206010047571 Visual impairment Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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Abstract
The application provides a liquid crystal composition and a liquid crystal display panel. The liquid crystal composition includes a first compound for adjusting viscosity and a fifth compound for adjusting polarity, and other compounds for adjusting liquid crystal properties. The liquid crystal composition with different proportions has lower viscosity or higher dielectric constant, and can be used in a liquid crystal display panel to improve the response speed of the liquid crystal display panel or reduce the driving voltage.
Description
Technical Field
The application relates to the field of liquid crystal display, in particular to a liquid crystal composition and a liquid crystal display panel.
Background
Due to the advantages of high contrast, fast response time, and the like, thin Film Transistor Liquid Crystal displays (TFT-LCDs) are increasingly widely used in the market. Display modes of a liquid crystal display are mainly classified into a TN (Twist Nematic) mode, an IPS (In-plane Switching) mode, an FFS (Fringe Field Switching) mode, and a VA (Vertical Alignment) mode. In the above display mode, the liquid crystal display is filled between two substrates, and the liquid crystal molecules are driven to rotate by the application of power to the substrates to realize the transmission of light with different brightness, thereby displaying different pictures.
With the development of the display industry, the requirements for high-performance liquid crystal display technology are higher and higher. Among them, it is a mainstream trend in the field of liquid crystal display technology to improve display quality and reduce power consumption. In contrast, the demand for the performance of liquid crystal materials is also increasing. To improve the display quality, the liquid crystal needs to achieve faster and faster response. Particularly, the faster the response is, the less the afterimages are likely to appear and the better the picture experience is. For liquid crystal materials, decreasing the viscosity of the liquid crystal can achieve faster response. In order to reduce power consumption, the liquid crystal material is required to have a smaller driving voltage, which can be obtained by increasing the dielectric constant.
Disclosure of Invention
In view of the above, the present application provides a liquid crystal composition and a liquid crystal display panel capable of improving display performance.
The present application provides a liquid crystal composition comprising:
5 to 60% by weight of a first compound selected from at least one of the compounds represented by the general formula (1),
1 to 20 weight percent of a second compound selected from at least one of the compounds represented by the general formula (2),
1 to 20% by weight of a third compound selected from at least one of the compounds represented by the general formula (3),
1 to 20 weight percent of a fourth compound selected from at least one of the compounds represented by the general formula (4),
a fifth compound in a weight percentage of 1 to 10%, the fifth compound being at least one selected from the group consisting of compounds represented by the general formula (5),
a sixth compound in a weight percentage of 1 to 15%, the sixth compound being at least one selected from the group consisting of compounds represented by the general formula (6), and
a seventh compound in a weight percentage of 1 to 15%, the seventh compound being at least one selected from the group consisting of compounds represented by the general formula (7),
wherein, R1 and R2 are respectively and independently selected from deuterated alkyl with 1-5 carbon atoms or deuterated alkenyl with 2-5 carbon atoms;
r3, R4, R5, R6, R7, R8, R11, R12, R13 and R14 are respectively and independently selected from alkyl with 1-5 carbon atoms, alkenyl with 2-5 carbon atoms or alkoxy with 1-5 carbon atoms;
r9 and R10 are respectively and independently selected from alkyl with 1-6 carbon atoms, alkenyl with 2-6 carbon atoms, deuterated alkyl with 1-6 carbon atoms or deuterated alkenyl with 2-6 carbon atoms.
The application also provides a liquid crystal display panel, which comprises a first substrate and a second substrate which are oppositely arranged, and a liquid crystal layer arranged between the first substrate and the second substrate, wherein the liquid crystal layer comprises the liquid crystal composition.
Drawings
In order to more clearly illustrate the technical solutions in the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a structural diagram of a liquid crystal display panel according to an embodiment of the present application.
Fig. 2 is a structural view of a liquid crystal display panel according to another embodiment of the present application.
Detailed Description
The technical solution in the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step based on the embodiments in the present application, are within the scope of protection of the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features directly, or may comprise the first and second features not being directly connected but being in contact with each other by means of further features between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.
In the present application, the same substituent, when multiple occurrences occur, may be independently selected from different groups. If the general formula contains a plurality of R, R can be independently selected from different groups.
The present application provides a liquid crystal composition comprising:
5 to 60% by weight of a first compound selected from at least one of the compounds represented by the general formula (1),
1 to 20 weight percent of a second compound selected from at least one of the compounds represented by the general formula (2),
1 to 20% by weight of a third compound selected from at least one of the compounds represented by the general formula (3),
1 to 20 weight percent of a fourth compound selected from at least one of the compounds represented by the general formula (4),
a fifth compound in a weight percentage of 1 to 10%, the fifth compound being at least one selected from the group consisting of compounds represented by the general formula (5),
a sixth compound in an amount of 1 to 15% by weight, the sixth compound being at least one selected from the group consisting of compounds represented by the general formula (6), and
1 to 15% by weight of a seventh compound selected from at least one of the compounds represented by the general formula (7),
wherein, R1 and R2 are respectively and independently selected from deuterated alkyl with 1-5 carbon atoms or deuterated alkenyl with 2-5 carbon atoms;
r3, R4, R5, R6, R7, R8, R11, R12, R13 and R14 are respectively and independently selected from alkyl with 1-5 carbon atoms, alkenyl with 2-5 carbon atoms or alkoxy with 1-5 carbon atoms;
r9 and R10 are respectively and independently selected from alkyl with 1-6 carbon atoms, alkenyl with 2-6 carbon atoms, deuterated alkyl with 1-6 carbon atoms or deuterated alkenyl with 2-6 carbon atoms.
Optionally, the first compound comprises at least one of the following compounds:
optionally, the second compound comprises at least one of the following compounds:
optionally, the third compound comprises at least one of the following compounds:
optionally, the fourth compound comprises at least one of the following compounds:
optionally, the fifth compound comprises the following compounds:
alternatively, the sixth compound comprises the following compounds:
alternatively, the seventh compound comprises the following compounds:
it should be noted that the liquid crystal composition of the present application may further comprise other kinds of liquid crystal compounds, including but not limited to the compounds listed below:
and, when other kinds of liquid crystal compounds are added to the liquid crystal composition, the components thereof may be adjusted as needed.
Please refer to the formula:
in the formula (1), vth represents a threshold voltage of the liquid crystal, which represents a starting voltage for driving the liquid crystal system, kii represents an elastic constant of the liquid crystal, and ∈ represents a dielectric constant of the liquid crystal. The driving voltage of the liquid crystal is inversely proportional to the dielectric constant.
In the formula (2), RT represents the response time of the liquid crystal, γ 1 Kii is the elastic constant for liquid crystal viscosity, and the response time of the liquid crystal system is proportional to the viscosity.
Therefore, the driving voltage of the liquid crystal can be adjusted by adjusting the dielectric constant of the liquid crystal, and the corresponding time of the liquid crystal can be adjusted by adjusting the viscosity of the liquid crystal.
The first compound in the liquid crystal composition of the present application is a non-polar or less polar liquid crystal compound, and when added to the liquid crystal composition, it can play a role in reducing viscosity. And the second to seventh compounds are F-containing compounds, and have higher polarity than the first compound, wherein the fifth compound has the highest polarity, and the content of the fifth compound has the highest influence on the polarity of the liquid crystal composition. Since the dielectric constant of the compound is in positive correlation with the polarity, the addition of the compound to the liquid crystal composition can play a role in increasing the polarity of the liquid crystal composition, thereby improving the dielectric constant of the liquid crystal composition. Further, the polar size of the molecules can be further controlled by adjusting the positions and the numbers of F and/or O atoms (if contained) in the second to seventh compounds, thereby adjusting the polar size of the liquid crystal system. By adjusting the ratio of the first compound to the seventh compound in the liquid crystal composition, the viscosity and polarity of the liquid crystal composition can be adjusted.
In the liquid crystal composition, if the nonpolar or less polar compound is excessive, the polarity is low, the dielectric constant cannot be improved, if the nonpolar or less polar compound is insufficient, the viscosity is too high, and if the polar monomer is excessive, the material system is unstable, and the liquid crystal phase cannot be stably formed. Therefore, if the weight percentage of the first compound in the liquid crystal composition is less than 5%, the effect of reducing the viscosity is not achieved, and if the weight percentage of the first compound is more than 60%, the amount of other compounds having a relatively large polarity is insufficient, resulting in that the polarity of the liquid crystal composition is too low and the dielectric constant is too small. On the other hand, as for the fifth compound having the maximum polarity in the liquid crystal composition, if the weight percentage of the fifth compound is less than 1%, the effect of increasing the polarity is not significant. Also, since the fifth compound has higher polarity but lower viscosity than other polar molecules, or the viscosity of the fifth compound increases less remarkably than other polar compounds (for example, the second to fourth, sixth and seventh compounds) as the polarity increases, the polarity of the liquid crystal composition can be increased by increasing the content of the fifth compound without causing too much increase in viscosity. However, if the weight percentage of the fifth compound is more than 20%, the stability of the liquid crystal composition is insufficient, and the liquid crystal phase cannot be stably formed. In addition, four hydrogen atoms on the benzene ring of the fifth compound are deuterated, so that the stability of the liquid crystal composition can be further improved.
In addition, the physical properties of the liquid crystal compound need to be combined and mixed by different monomers to achieve performance optimization in all aspects and obtain a high-performance mixed crystal system. The liquid crystal composition provided by the application has the advantages that certain dielectric constant can be guaranteed while viscosity is reduced, response speed of the liquid crystal composition is further increased, or certain viscosity is guaranteed while the dielectric constant is increased, and driving voltage of the liquid crystal composition is reduced. Further, by setting the first to seventh components within the above range, it is possible to maintain a high refractive index, to have good optical characteristics, and to improve the reliability of the liquid crystal composition, and the like. Further, the deuterated alkyl or deuterated alkenyl is contained in the first compound and the fifth compound, so that the stability of the liquid crystal composition is improved.
Preferably, the weight percentage of the first compound is 25% to 50%. By setting the weight percentage of the first compound within this range, the dielectric constant and the viscosity can be compatible.
Preferably, the weight percentage of the fifth compound is 3% to 8%. By setting the weight percentage of the fifth compound within this range, the dielectric constant and the viscosity can be compatible.
Optionally, in some embodiments, at least one of the sum of the carbon numbers of R1 and R2, the sum of the carbon numbers of R3 and R4, the sum of the carbon numbers of R5 and R6, the sum of the carbon numbers of R7 and R8, the sum of the carbon numbers of R9 and R10, and the sum of the carbon numbers of R11 and R12 does not exceed 7. The shorter the chain length of the compound, the lower the viscosity and the faster the response speed. By limiting the chain lengths of the substituents of the first component to the seventh component, the viscosity of the liquid crystal composition can be further reduced, thereby increasing the response speed of the liquid crystal composition.
Alternatively, in some embodiments,
the first compound comprises 35-42% of compound (1-1) and 1-5% of compound (1-2);
the second compound comprises 10-14% of compound (2-1) and 3-7% of compound (2-2);
the third compound comprises 7-11% of compound (3-1) and 3-7% of compound (3-2);
the fourth compound comprises 8-12% of compound (4-1) and 2-6% of compound (4-2);
the fifth compound comprises 2 to 6 weight percent of compound (5-1);
the sixth compound comprises 1 to 5 weight percent of compound (6-1);
the seventh compound comprises 3 to 7 weight percent of compound (7-1);
alternatively, in some embodiments,
the first compound comprises 8-12% of compound (1-1) by weight, 25-35% of compound (1-3) by weight and 8-12% of compound (1-4) by weight;
the second compound comprises 5-12% of compound (2-3) and 2-7% of compound (2-2);
the third compound comprises 2 to 7 weight percent of compound (3-1) and 2 to 7 weight percent of compound (3-2);
the fourth compound comprises 4-9% of compound (4-1) and 2-5% of compound (4-2);
the fifth compound comprises 2 to 5 weight percent of compound (5-1);
the sixth compound comprises 2 to 5 weight percent of compound (6-1);
the seventh compound comprises 3 to 6 weight percent of compound (7-1);
the liquid crystal composition further comprises:
4-8% by weight of a compound (8); and
1-5% by weight of a compound (9);
optionally, in some embodiments, the first compound comprises 25 to 34 weight percent of compound (1-1) and 20 to 32 weight percent of compound (1-2);
the second compound comprises 1 to 3 weight percent of compound (2-1);
the third compound comprises 1 to 3 weight percent of compound (3-1);
the fourth compound comprises 1 to 3 weight percent of compound (4-1);
the fifth compound comprises 5-10% of compound (5-1) by weight;
the sixth compound comprises 10-15% by weight of a compound (6-1);
the seventh compound comprises 12 to 16 weight percent of compound (7-1);
alternatively, in some embodiments,
the first compound comprises 35-42% of compound (1-1) and 1-5% of compound (1-2);
the second compound comprises 10-14% of compound (2-1) and 3-7% of compound (2-2);
the third compound comprises 7 to 11 weight percent of compound (3-1) and 3 to 7 weight percent of compound (3-2);
the fourth compound comprises 8-12% of compound (4-1) and 2-6% of compound (4-2);
the fifth compound comprises 2 to 6 weight percent of compound (5-1);
the sixth compound comprises 1 to 5 weight percent of compound (6-1);
the seventh compound comprises 3 to 7 weight percent of compound (7-1);
alternatively, in some embodiments,
the first compound comprises 8-12% of compound (1-1) by weight, 25-35% of compound (1-3) by weight and 8-12% of compound (1-4) by weight;
the second compound comprises 5-12% of compound (2-3) and 2-7% of compound (2-2);
the third compound comprises 2 to 7 weight percent of compound (3-1) and 2 to 7 weight percent of compound (3-2);
the fourth compound comprises 4-9% of compound (4-1) and 2-5% of compound (4-2);
the fifth compound comprises 2 to 5 weight percent of compound (5-1);
the sixth compound comprises 2 to 5 weight percent of compound (6-1);
the seventh compound comprises 3 to 6 weight percent of a compound (7-1);
the liquid crystal composition further comprises:
4-8% by weight of a compound (8); and
1-5% by weight of a compound (9);
alternatively, in some embodiments,
the first compound comprises 25-34% of compound (1-1) and 20-32% of compound (1-2);
the second compound comprises 1 to 3 weight percent of compound (2-1);
the third compound comprises 1 to 3 weight percent of compound (3-1);
the fourth compound comprises 1 to 3 weight percent of compound (4-1);
the fifth compound comprises 5-10% of compound (5-1) by weight;
the sixth compound comprises 10-15% by weight of a compound (6-1);
the seventh compound comprises 12 to 16 weight percent of a compound (7-1);
the application also provides a liquid crystal display panel which can be an IPS (in-plane switching) type liquid crystal display panel, an FFS (fringe field switching) type liquid crystal display panel or a VA (vertical alignment) type liquid crystal display panel.
Referring to fig. 1, a liquid crystal display panel 100 according to an embodiment of the present disclosure is a horizontal electric field liquid crystal display panel, i.e., an IPS mode liquid crystal display panel or an FFS mode liquid crystal display panel. The liquid crystal display panel 100 includes an array substrate 10 and an opposite substrate 20 disposed opposite to each other, and a liquid crystal layer 30 disposed between the array substrate 10 and the opposite substrate 20. In the present embodiment, the opposite substrate 20 is a color filter substrate. In other embodiments of the present disclosure, the array substrate 10 may be a COA (color filter on array) type array substrate. At this time, the opposite substrate 20 does not include a color film layer, and the color film layer is disposed on the array substrate 10.
The liquid crystal composition can be directly injected when being applied to an IPS or FFS type liquid crystal display panel, UV curing is not needed, and the first component to the seventh component exist in a mixture form. The liquid crystal layer 30 includes the liquid crystal composition as above. That is, the liquid crystal layer 30 includes the first to seventh components as described above.
Referring to fig. 2, a liquid crystal display panel 100 according to another embodiment of the present disclosure is a VA-type liquid crystal display panel, and particularly, a Polymer Stabilized Vertical Alignment (PSVA) type liquid crystal panel. When the liquid crystal composition is applied to a VA-type liquid crystal display panel, a reactive monomer needs to be added to the liquid crystal composition, and UV curing needs to be performed. During UV curing
The reactive monomer is polymerized, the polymer is deposited on the two inner surfaces of the array substrate and the opposite substrate through phase separation to fix the pretilt angle of the liquid crystal, and the first component to the seventh component are not polymerized and still exist in the form of a mixture.
Hereinafter, the properties of the liquid crystal composition and the liquid crystal display panel of the present application are described by examples 1 to 4 and comparative examples.
Example 1
Liquid crystal compositions were prepared according to the compounding ratios of the liquid crystal compositions of example 1 in table 1, and the dielectric constant and viscosity of the liquid crystal compositions were measured.
TABLE 1 formulation of the liquid crystal composition of example 1
Example 2
Liquid crystal compositions were prepared according to the compounding ratios of the liquid crystal compositions of example 2 in table 2, and the dielectric constant and viscosity of the liquid crystal compositions were measured.
TABLE 2 formulation of the liquid crystal composition of example 2
Example 3
Liquid crystal compositions were prepared according to the compounding ratios of the liquid crystal compositions of example 3 in table 3, and the dielectric constant and viscosity of the liquid crystal compositions were measured.
TABLE 3 formulation of the liquid crystal composition of example 3
Example 4
Liquid crystal compositions were prepared according to the compounding ratios of the liquid crystal compositions of example 4 in table 4, and the dielectric constant and viscosity of the liquid crystal compositions were measured.
TABLE 4 formulation of the liquid crystal composition of example 4
Comparative example
Liquid crystal compositions were prepared in accordance with the compounding ratios of the liquid crystal compositions in table 5, and the dielectric constant and the viscosity of the liquid crystal compositions were measured.
TABLE 5 formulation of liquid crystal composition of comparative example
The results of measuring the characteristics of the liquid crystal compositions of examples 1 to 4 and comparative example are shown in Table 6.
TABLE 6 dielectric constant and viscosity data for liquid crystal compositions of examples 1-4 and comparative examples
In the comparative example, a conventional liquid crystal composition was used, and from the above results, it can be seen that the dielectric constants of examples 1, 3-4 were improved as compared to the comparative example, while the viscosity of example 2 was reduced as compared to the comparative example. The liquid crystal composition of example 1 has a greatly improved dielectric constant due to the use of the fifth compound having a relatively high polarity in an amount of 4% compared to the comparative example, and still maintains a viscosity comparable to that of the comparative example due to the use of the first compound in an amount of 40%. The liquid crystal composition of example 2 uses the first compound in an amount of up to 50%, significantly reducing the viscosity of the liquid crystal composition, but still maintains a certain dielectric constant due to the addition of the fifth compound in an amount of 3%. In the liquid crystal composition of example 3, the content of the fifth compound was increased to 8%, the dielectric constant was greatly improved, and the viscosity comparable to that of the comparative example was still maintained due to the use of the first compound in an amount of 37%. The fifth compound was used in an amount of 6% in the liquid crystal composition of example 4, and a higher dielectric constant was obtained, but the viscosity was increased by decreasing the amount of the first compound to 18%. The above experimental data confirm that the liquid crystal composition of the embodiments of the present application can achieve at least one of a reduction in viscosity and an increase in dielectric constant.
The foregoing provides a detailed description of embodiments of the present application, and the principles and embodiments of the present application have been described herein using specific examples, which are presented solely to aid in the understanding of the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A liquid crystal composition, comprising:
5 to 60% by weight of a first compound selected from at least one of the compounds represented by the general formula (1),
1 to 20 weight percent of a second compound selected from at least one of the compounds represented by the general formula (2),
1 to 20% by weight of a third compound selected from at least one of the compounds represented by the general formula (3),
1 to 20 weight percent of a fourth compound selected from at least one of the compounds represented by the general formula (4),
a fifth compound in a weight percentage of 1 to 10%, the fifth compound being at least one selected from the group consisting of compounds represented by the general formula (5),
a sixth compound in an amount of 1 to 15% by weight, the sixth compound being at least one selected from the group consisting of compounds represented by the general formula (6), and
1 to 15% by weight of a seventh compound selected from at least one of the compounds represented by the general formula (7),
wherein, R1 and R2 are respectively and independently selected from deuterated alkyl with 1-5 carbon atoms or deuterated alkenyl with 2-5 carbon atoms;
r3, R4, R5, R6, R7, R8, R11, R12, R13 and R14 are respectively and independently selected from alkyl with 1-5 carbon atoms, alkenyl with 2-5 carbon atoms or alkoxy with 1-5 carbon atoms;
r9 and R10 are respectively and independently selected from alkyl with 1-6 carbon atoms, alkenyl with 2-6 carbon atoms, deuterated alkyl with 1-6 carbon atoms or deuterated alkenyl with 2-6 carbon atoms.
2. The liquid crystal composition of claim 1, wherein the first compound is present in an amount of 25 to 50% by weight.
3. The liquid crystal composition of claim 1, wherein the weight percent of the fifth compound is 3% to 8%.
4. The liquid crystal composition of any one of claims 1 to 3, further comprising at least one of the following compounds:
5. the liquid crystal composition according to claim 1, wherein at least one of the sum of the carbon numbers of R1 and R2, the sum of the carbon numbers of R3 and R4, the sum of the carbon numbers of R5 and R6, the sum of the carbon numbers of R7 and R8, the sum of the carbon numbers of R9 and R10, and the sum of the carbon numbers of R11 and R12 is not more than 7.
6. The liquid crystal composition of claim 1,
the first compound comprises at least one of the following compounds:
the second compound comprises at least one of the following compounds:
the third compound comprises at least one of the following compounds:
the fourth compound comprises at least one of the following compounds:
the fifth compound includes the following compounds:
the sixth compound includes the following compounds:
the seventh compound includes the following compounds:
7. the liquid crystal composition of claim 1,
the first compound comprises 35-42% of compound (1-1) and 1-5% of compound (1-2);
the second compound comprises 10-14% of compound (2-1) and 3-7% of compound (2-2);
the third compound comprises 7-11% of compound (3-1) and 3-7% of compound (3-2);
the fourth compound comprises 8-12% of compound (4-1) and 2-6% of compound (4-2);
the fifth compound comprises 2 to 6 weight percent of compound (5-1);
the sixth compound comprises 1 to 5 weight percent of compound (6-1);
the seventh compound comprises 3 to 7 weight percent of compound (7-1);
8. the liquid crystal composition of claim 1,
the first compound comprises 8-12% of compound (1-1) by weight, 25-35% of compound (1-3) by weight and 8-12% of compound (1-4) by weight;
the second compound comprises 5-12% of compound (2-3) and 2-7% of compound (2-2);
the third compound comprises 2 to 7 weight percent of compound (3-1) and 2 to 7 weight percent of compound (3-2);
the fourth compound comprises 4-9% of compound (4-1) and 2-5% of compound (4-2);
the fifth compound comprises 2 to 5 weight percent of compound (5-1);
the sixth compound comprises 2 to 5 weight percent of compound (6-1);
the seventh compound comprises 3 to 6 weight percent of a compound (7-1);
the liquid crystal composition further comprises:
4-8% by weight of a compound (8); and
1-5% by weight of a compound (9);
9. the liquid crystal composition of claim 1,
the first compound comprises 25-34% of compound (1-1) and 20-32% of compound (1-2);
the second compound comprises 1 to 3 weight percent of compound (2-1);
the third compound comprises 1 to 3 weight percent of compound (3-1);
the fourth compound comprises 1 to 3 weight percent of compound (4-1);
the fifth compound comprises 5-10% of compound (5-1) by weight;
the sixth compound comprises 10-15% by weight of a compound (6-1);
the seventh compound comprises 12 to 16 weight percent of compound (7-1);
10. a liquid crystal display panel, comprising:
a first substrate;
a second substrate disposed opposite to the first substrate; and
a liquid crystal layer disposed between the first substrate and the second substrate, the liquid crystal layer comprising the liquid crystal composition according to any one of claims 1 to 9.
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| CN115074139A (en) * | 2022-07-01 | 2022-09-20 | Tcl华星光电技术有限公司 | Liquid crystal composition and liquid crystal display panel |
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