CN113122277B - Liquid crystal composition, liquid crystal display element and liquid crystal display - Google Patents
Liquid crystal composition, liquid crystal display element and liquid crystal display Download PDFInfo
- Publication number
- CN113122277B CN113122277B CN201911402669.2A CN201911402669A CN113122277B CN 113122277 B CN113122277 B CN 113122277B CN 201911402669 A CN201911402669 A CN 201911402669A CN 113122277 B CN113122277 B CN 113122277B
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- carbon atoms
- crystal composition
- crystal display
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 146
- 239000000203 mixture Substances 0.000 title claims abstract description 110
- 150000001875 compounds Chemical class 0.000 claims abstract description 43
- 125000004432 carbon atom Chemical group C* 0.000 claims description 72
- 125000000217 alkyl group Chemical group 0.000 claims description 18
- 125000003342 alkenyl group Chemical group 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 12
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 101001053395 Arabidopsis thaliana Acid beta-fructofuranosidase 4, vacuolar Proteins 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 10
- 230000000875 corresponding effect Effects 0.000 description 27
- 238000009472 formulation Methods 0.000 description 26
- 230000000052 comparative effect Effects 0.000 description 16
- 238000012360 testing method Methods 0.000 description 6
- -1 3-pentenyl Chemical group 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 125000003302 alkenyloxy group Chemical group 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 125000004955 1,4-cyclohexylene group Chemical group [H]C1([H])C([H])([H])C([H])([*:1])C([H])([H])C([H])([H])C1([H])[*:2] 0.000 description 3
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 125000004976 cyclobutylene group Chemical group 0.000 description 3
- 125000004979 cyclopentylene group Chemical group 0.000 description 3
- 125000004980 cyclopropylene group Chemical group 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 125000004973 1-butenyl group Chemical group C(=CCC)* 0.000 description 1
- 125000004776 1-fluoroethyl group Chemical group [H]C([H])([H])C([H])(F)* 0.000 description 1
- 125000006039 1-hexenyl group Chemical group 0.000 description 1
- 125000006023 1-pentenyl group Chemical group 0.000 description 1
- 125000006017 1-propenyl group Chemical group 0.000 description 1
- UWCWUCKPEYNDNV-LBPRGKRZSA-N 2,6-dimethyl-n-[[(2s)-pyrrolidin-2-yl]methyl]aniline Chemical compound CC1=CC=CC(C)=C1NC[C@H]1NCCC1 UWCWUCKPEYNDNV-LBPRGKRZSA-N 0.000 description 1
- 125000004974 2-butenyl group Chemical group C(C=CC)* 0.000 description 1
- 125000004777 2-fluoroethyl group Chemical group [H]C([H])(F)C([H])([H])* 0.000 description 1
- 125000006040 2-hexenyl group Chemical group 0.000 description 1
- 125000006024 2-pentenyl group Chemical group 0.000 description 1
- 125000004975 3-butenyl group Chemical group C(CC=C)* 0.000 description 1
- 125000006041 3-hexenyl group Chemical group 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 125000004216 fluoromethyl group Chemical group [H]C([H])(F)* 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal Substances (AREA)
Abstract
The disclosure relates to a liquid crystal composition, a liquid crystal display element containing the liquid crystal composition and a liquid crystal display, and belongs to the field of liquid crystal display. The liquid crystal composition disclosed by the disclosure comprises a compound shown as a formula I and one or more compounds shown as a formula II, and has large optical anisotropy and high clearing point.
Description
Technical Field
The present disclosure relates to a liquid crystal composition, a liquid crystal display element including the same, and a liquid crystal display.
Background
The liquid crystal display elements are classified into the following modes according to display modes: twisted Nematic (TN) mode, super Twisted Nematic (STN) mode, in-plane mode (IPS), fringe Field Switching (FFS), vertical Alignment (VA) mode. The following characteristics are required for the liquid crystal composition regardless of the display mode:
(1) The chemical and physical properties are stable; (2) low viscosity; (3) has a suitable dielectric Δε; (4) a suitable refractive index Δn; (5) good miscibility with other liquid crystal compounds.
The TFT-LCD products in early commercial use basically adopted a TN display mode, and the biggest problem is the narrow viewing angle. With the increase of the product size, particularly the application in the field of TV, an IPS display mode and a VA display mode with a wide view angle are developed and applied in sequence.
In addition, the liquid crystal media used for display elements such as FFS mode, IPS mode, and VA mode are not perfect per se, and the liquid crystal materials used for display devices are required to have (1) a low driving voltage: the liquid crystal material has proper negative dielectric anisotropy and elasticity coefficient K; (2) fast response: the liquid crystal material has a suitable rotational viscosity gamma 1 And an elasticity coefficient K; (3) high reliability: high charge retention rate, high specific resistance, excellent high temperature stabilityCharacteristics such as the nature and stability of irradiation with ultraviolet light (UV light) or conventional backlighting. With the wide application of liquid crystal displays, the performance requirements of the liquid crystal displays are continuously increasing. The high contrast ratio can obviously improve the image definition, image detail, gray level and other performances of the display. Although the retardation (Δnd) of different display modes is designed differently, the retardation of the same display mode is designed to be substantially the same to the retardation in order to obtain as large a transmittance as possible. By means of the design of the fixed retardation, good contrast, visual angle and other performances are obtained. The response speed of the liquid crystal display device is affected by the thickness (d) of the liquid crystal box, and the integral control capability of the electric field on the torsion of the liquid crystal molecules is weakened by the increase of the thickness of the liquid crystal box, so that the response speed of the liquid crystal display device can be improved by reducing the thickness of the liquid crystal box on the premise of unchanged delay amount. Research into different combinations of liquid crystal compounds to balance the properties of the various aspects is a popular direction of continuous effort.
The liquid crystal material not only has the characteristics, but also has a wide nematic phase temperature range to meet the wide application field of the liquid crystal panel, such as a vehicle-mounted liquid crystal display which needs to meet wider working temperature to adapt to the temperature change of various regions and climates; liquid crystal displays of industrial control products are also required to meet wider operating temperatures to accommodate temperature variations in different operating environments. In practical applications, the response speed of our liquid crystal materials is also required to be improved.
Disclosure of Invention
The present inventors have conducted intensive studies in order to solve the problems of the prior art, and have surprisingly found that the optical anisotropy and clearing point of a liquid crystal composition can be increased by the technical scheme of the present disclosure.
Another object of the present disclosure is to provide a liquid crystal display element comprising the liquid crystal composition of the present disclosure, which has a fast response speed.
It is still another object of the present disclosure to provide a liquid crystal display comprising the liquid crystal composition of the present disclosure, which has a fast response speed.
In order to achieve the above purpose, the present disclosure adopts the following technical scheme:
the present disclosure provides liquid crystal compositions comprising a compound of formula I, and one or more compounds of formula II,
in formula II, R 1 、R 2 Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a fluorine-substituted alkenyl group having 2 to 10 carbon atoms, and R 1 、R 2 At least one represents an alkenyl group having 2 to 10 carbon atoms.
The technical scheme of the present disclosure has proper dielectric anisotropy and rotational viscosity, and can increase the optical anisotropy and clear point of the liquid crystal composition.
The present disclosure also provides a liquid crystal display element comprising the liquid crystal composition of the present disclosure, the liquid crystal display element being an active matrix addressed display element or a passive matrix addressed display element.
The present disclosure also provides a liquid crystal display comprising the liquid crystal composition of the present disclosure, the liquid crystal display being an active matrix addressed display or a passive matrix addressed display.
Detailed Description
[ liquid Crystal composition ]
The liquid crystal composition comprises a compound shown as a formula I and one or more compounds shown as a formula II,
in formula II, R 1 、R 2 Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or a fluorine-substituted chain having 2 to 10 carbon atomsAlkenyl, and R 1 、R 2 At least one represents an alkenyl group having 2 to 10 carbon atoms.
The technical scheme of the present disclosure has proper dielectric anisotropy and rotational viscosity, and can increase the optical anisotropy and clear point of the liquid crystal composition.
Examples of the alkyl group having 1 to 10 carbon atoms include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, hexyl, heptyl, octyl, nonyl, decyl and the like.
Examples of the alkenyl group having 2 to 10 carbon atoms include vinyl, 1-propenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 1-hexenyl, 2-hexenyl and 3-hexenyl.
The "fluoro substituent" in the above-mentioned fluoro-substituted alkyl group having 1 to 10 carbon atoms and fluoro-substituted alkenyl group having 2 to 10 carbon atoms may be monofluoro substituent, or may be difluoro substituent, trifluoro substituent or other multi-fluoro substituent, or may be perfluoro substituent, and the number of fluoro substituents is not particularly limited. Examples of the fluorine-substituted alkyl group having 1 to 10 carbon atoms include, but are not limited to, fluoromethyl group, difluoromethyl group, trifluoromethyl group, 1-fluoroethyl group, 2-fluoroethyl group, 1, 2-difluoroethyl group, 1, 2-trifluoroethyl group, 1, 2-pentafluoroethyl group and the like.
In the liquid crystal composition of the present disclosure, preferably, the compound represented by the above formula II is selected from the group consisting of compounds represented by the following formulas II-1 to II-2:
the liquid crystal composition of the present disclosure preferably further comprises one or more compounds represented by formula iii:
in the formula III, R 3 、R 4 Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a fluorine-substituted alkenyl group having 2 to 10 carbon atoms, an alkenyloxy group having 3 to 8 carbon atoms, or a fluorine-substituted alkenyloxy group having 3 to 8 carbon atoms;
R 3 、R 4 -CH not linked to any one or more of the groups shown 2 -optionally substituted with cyclopentylene, cyclobutylene or cyclopropyl ene;
Z 1 、Z 2 each independently represents a single bond, -CH 2 CH 2 -、-CH 2 O-or-OCH 2 -；
Each independently represents 1, 4-cyclohexylene, 1, 4-cyclohexenylene, 1, 4-phenylene or fluoro 1, 4-phenylene;
m represents 0 or 1; n represents 0, 1 or 2.
The aforementioned compound represented by formula iii has negative dielectric anisotropy, and by including the compound represented by formula iii in the liquid crystal composition of the present disclosure, the driving voltage of the liquid crystal composition can be adjusted.
In the liquid crystal composition of the present disclosure, preferably, the compound represented by the above formula III is selected from the group consisting of compounds represented by the following formulas III-1 to III-11:
wherein:
R 31 、R 41 each independently represents carbonAn alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a fluorine-substituted alkenyl group having 2 to 10 carbon atoms, an alkenyloxy group having 3 to 8 carbon atoms, or a fluorine-substituted alkenyloxy group having 3 to 8 carbon atoms;
R 31 、R 41 -CH not linked to any one or more of the groups shown 2 Optionally substituted with cyclopentylene, cyclobutylene or cyclopropyl ene.
The liquid crystal composition of the present disclosure preferably further comprises one or more compounds of formula iv:
wherein,,
R 5 、R 6 represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms;
each independently represents 1, 4-cyclohexylene, 1, 4-cyclohexenylene or 1, 4-phenylene.
By including the compound represented by formula iv in the liquid crystal composition of the present disclosure, the miscibility of the liquid crystal composition can be improved, and the rotational viscosity can be reduced, thereby improving the response speed of the liquid crystal composition of the present disclosure.
The liquid crystal composition of the present disclosure preferably, the aforementioned compound represented by formula IV is selected from the group consisting of compounds represented by the following formulas IV-1 to IV-3:
wherein,,
R 5 、R 6 represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms.
The liquid crystal composition of the present disclosure preferably further comprises one or more compounds of formula v in addition to the compounds of formula I, formula ii:
wherein,,
R 7 、R 8 each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms;
each independently represents 1, 4-cyclohexylene, 1, 4-cyclohexenylene or 1, 4-phenylene.
By including the compound represented by formula v in the liquid crystal composition of the present disclosure, the optical anisotropy of the liquid crystal composition can be increased and the clearing point of the liquid crystal composition can be improved.
In the liquid crystal composition of the present disclosure, preferably, the compound represented by formula v, other than the compounds represented by formula I and formula ii, is selected from the group consisting of compounds represented by the following formulas v-1 to v-3:
wherein,,
R 7 、R 8 each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms.
The liquid crystal composition of the present disclosure preferably further comprises one or more compounds of formula vi:
wherein,,
R 9 represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, any one or more of which are not linked to-CH 2 -optionally substituted with cyclopentylene, cyclobutylene or cyclopropyl ene;
R 10 represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or a fluorine-substituted alkoxy group having 1 to 10 carbon atoms;
x represents O or S.
By including the compound of formula VI in the liquid crystal composition of the present disclosure, the liquid crystal composition can have a large negative dielectric anisotropy, which is advantageous for reducing the driving voltage of the device.
The liquid crystal composition of the present disclosure, preferably, the compound represented by the aforementioned formula VI is selected from the group consisting of compounds represented by the following formulas VI-1 to VI-12:
wherein R is 91 、R 101 Represents an alkyl group having 1 to 10 carbon atoms.
In the liquid crystal composition disclosed by the disclosure, the addition amount (mass ratio) of the compound shown in the formula I in the liquid crystal composition is 1-10%, preferably 3-8%; the addition amount (mass ratio) of the compound shown in the formula II in the liquid crystal composition is 1-20%, preferably 3-15%; the compound shown in the formula III is added into the liquid crystal composition in an amount of 0-56% by mass, preferably 25-40% by mass; the addition amount (mass ratio) of the compound shown in the formula IV in the liquid crystal composition is 0-45%, preferably 20-40%; the compound of formula V is added to the liquid crystal composition in an amount of 0 to 25% by mass, preferably 5 to 15% by mass; the compound of formula VI is added to the liquid crystal composition in an amount of 0 to 20% by mass, preferably 3 to 15% by mass.
In the liquid crystal composition of the present disclosure, optionally, various functional dopants may be added, and in the case of containing the dopants, the content of the dopants is preferably 0.01 to 1.5% by mass in the liquid crystal composition, and examples of the dopants include antioxidants, ultraviolet absorbers, and chiral agents.
The antioxidant may be exemplified by an antioxidant such as,
t represents an integer of 1 to 10;
the chiral agent may be exemplified by a chiral compound,
R 0 represents an alkyl group having 1 to 10 carbon atoms;
the light stabilizer may be exemplified by those having,
Z 0 represents an alkylene group having 1 to 20 carbon atoms, any one or more hydrogens in the alkylene group being optionally substituted with halogen, any one or more-CH' s 2 -optionally substituted with-O-;
the ultraviolet ray absorber may be exemplified by,
R 01 represents an alkyl group having 1 to 10 carbon atoms.
[ liquid Crystal display element or liquid Crystal display ]
The present disclosure also relates to a liquid crystal display element or a liquid crystal display comprising any of the above liquid crystal compositions; the display element or display is an active matrix display element or display or a passive matrix display element or display.
Alternatively, the liquid crystal display element or liquid crystal display is preferably an active matrix liquid crystal display element or liquid crystal display.
Optionally, the active matrix display element or display is an IPS-TFT, FFS-TFT, VA-TFT liquid crystal display element or display.
The liquid crystal display element or the liquid crystal display containing the compound or the liquid crystal composition has a wider nematic phase temperature range and a faster response speed.
Examples
In order to more clearly illustrate the present disclosure, the present disclosure is further described below in connection with preferred embodiments. It is to be understood by persons of ordinary skill in the art that the following detailed description is illustrative and not restrictive, and should not be taken as limiting the scope of the present disclosure.
In the specification, unless specified otherwise, the percentages refer to mass percentages, the temperature is in degrees centigrade (DEG C), and the specific meanings and testing conditions of other symbols are as follows:
cp represents a liquid crystal clearing point (DEG C), and is tested by DSC quantification;
an represents the optical anisotropy of the optical fiber,n o refractive index of ordinary ray, n e The refractive index of the extraordinary ray is 25+/-2 ℃ and is measured by an Abbe refractometer at 589 nm;
delta epsilon represents dielectric anisotropy, delta epsilon=epsilon ∥ -ε ⊥ Wherein ε is ∥ For dielectric constant parallel to the molecular axis ε ⊥ For the dielectric constant perpendicular to the molecular axis, the test conditions are 25+/-0.5 ℃ and 20-micrometer parallel boxes, INSTEC, ALCT-IR1 test;
γ 1 the rotational viscosity (mPas) is shown, the test conditions are 25+/-0.5 ℃, 20-micrometer parallel boxes, INSTEC, ALCT-IR1 test;
K 11 to give a torsional spring constant, K 33 For the splay elastic constant, the test conditions were: 25 ℃, INSTEC, ALCT-IR1, 18 micron vertical box;
the preparation method of the liquid crystal composition comprises the following steps: and weighing all the liquid crystal monomers according to a certain proportion, putting the liquid crystal monomers into a stainless steel beaker, putting the stainless steel beaker with all the liquid crystal monomers on a magnetic stirring instrument, heating and melting, adding a magnetic rotor into the stainless steel beaker after most of the liquid crystal monomers in the stainless steel beaker are melted, uniformly stirring the mixture, and cooling to room temperature to obtain the liquid crystal composition.
The liquid crystal monomer structure of the embodiment of the disclosure is expressed by codes, and the codes of the liquid crystal ring structure, the end group and the connecting group are expressed by the following table 1 and table 2.
Table 1 corresponding codes of the ring structure
TABLE 2 correspondence code of end groups to linking groups
Examples:
the code is CC-Cp-V1;
the code is CPY-2-O2;
the code is CCY-3-O2;
the code is COY-3-O2; />
The code is CCOY-3-O2;
the code is Sb-CpO-O4;
the code is Sc-CpO-O4.
Example 1
The formulation and corresponding properties of the liquid crystal composition are shown in Table 3 below.
TABLE 3 formulation of example 1 liquid crystal composition and corresponding Properties
Example 2
The formulation and corresponding properties of the liquid crystal composition are shown in Table 4 below.
TABLE 4 formulation and corresponding Properties of example 2 liquid Crystal composition
Comparative example 1
The formulation and corresponding properties of the liquid crystal composition are shown in Table 5 below.
TABLE 5 formulation and corresponding Properties of comparative example 1 liquid Crystal composition
CPP-3-1 in example 2 was replaced with CCP-3-1, and comparative example 1 was obtained in the same manner as in example 2. The liquid crystal composition of example 2 of the present invention has appropriate dielectric anisotropy (Δε), rotational viscosity, optical anisotropy (Δn) and clear point (Cp) as compared with comparative example 1, and can be used for developing a low cell thickness, fast response, wide temperature display liquid crystal display.
Example 3
The formulation and corresponding properties of the liquid crystal composition are shown in Table 6 below.
TABLE 6 formulation of example 3 liquid crystal composition and corresponding Properties
Example 4
The formulation and corresponding properties of the liquid crystal composition are shown in Table 7 below.
TABLE 7 formulation and corresponding Properties of example 4 liquid Crystal composition
Example 5
The formulation and corresponding properties of the liquid crystal composition are shown in Table 8 below.
TABLE 8 formulation of example 5 liquid crystal composition and corresponding Properties
Example 6
The formulation and corresponding properties of the liquid crystal composition are shown in Table 9 below.
TABLE 9 formulation of liquid crystal composition of example 6 and corresponding Properties
Example 7
The formulation and corresponding properties of the liquid crystal composition are shown in Table 10 below.
TABLE 10 formulation of liquid crystal composition of example 7 and corresponding Properties
Comparative example 2
The formulation and corresponding properties of the liquid crystal composition are shown in Table 11 below.
Table 11 formulation and corresponding Properties of comparative example 2 liquid crystal composition
CPP-3-2V1 in example 7 was replaced with CPP-3-2, and the remainder was the same as in example 7, as comparative example 2. The liquid crystal composition of example 7 of the present invention has appropriate dielectric anisotropy (Δε), rotational viscosity, optical anisotropy (Δn) and clear point (Cp) as compared with comparative example 2, and can be used for developing a liquid crystal display with low cell thickness and rapid response.
Example 8
The formulation and corresponding properties of the liquid crystal composition are shown in Table 12 below.
TABLE 12 formulation and corresponding Properties of the liquid Crystal composition of example 8
Example 9
The formulation and corresponding properties of the liquid crystal composition are shown in Table 13 below.
TABLE 13 formulation and corresponding Properties of the liquid Crystal composition of example 9
Comparative example 3
The formulation and corresponding properties of the liquid crystal composition are shown in Table 14 below.
Table 14 formulation and corresponding Properties of comparative example 3 liquid crystal composition
CPP-3-1 in example 9 was replaced with CCP-3-1, and the remainder was the same as in example 9, as comparative example 3. The liquid crystal composition of example 9 of the present invention has appropriate dielectric anisotropy (Δε), rotational viscosity, optical anisotropy (Δn) and liquid crystal clearing point (Cp) as compared with comparative example 3, and can be used for developing a low cell thickness, fast response liquid crystal display.
Comparative example 4
The formulation and corresponding properties of the liquid crystal composition are shown in Table 15 below.
TABLE 15 formulation of liquid crystal composition of comparative example 4 and corresponding Properties
CPP-3-2V1 in example 9 was replaced with CPP-3-2, and the remainder was the same as in example 9, as comparative example 4. The liquid crystal composition of example 9 of the present invention has appropriate dielectric anisotropy (Δε), rotational viscosity, optical anisotropy (Δn) and liquid crystal clearing point (Cp) as compared with comparative example 4, and can be used for developing a low cell thickness, fast response liquid crystal display.
It should be apparent that the foregoing examples of the present disclosure are merely illustrative of the present disclosure and not limiting of the embodiments of the present disclosure, and that various other changes and modifications may be made by one of ordinary skill in the art based on the foregoing description, and it is not intended to be exhaustive of all embodiments, and all obvious changes and modifications that come within the scope of the present disclosure are intended to be embraced by the technical solution of the present disclosure.
Claims (3)
1. A liquid crystal composition is characterized in that the liquid crystal composition comprises 3-8% of a compound shown in a formula I, 3-15% of one or more compounds shown in formulas II-1 and II-2, at least 4 compounds shown in formulas III-3, III-4, III-5, III-10 and III-11, 25-40% of one or more compounds shown in formulas IV-1 and IV-3, 20-40% of one or more compounds shown in formulas V-1, 5-15% of one or more compounds shown in formulas VI-2 and VI-4,
wherein,,
R 31 、R 41 each independently represents an alkyl group having 1 to 10 carbon atoms or an alkoxy group having 1 to 10 carbon atoms;
R 5 、R 6 each independently represents an alkyl group having 1 to 10 carbon atoms;
R 7 、R 8 each independently represents an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms;
R 101 represents an alkyl group having 1 to 10 carbon atoms.
2. A liquid crystal display element comprising the liquid crystal composition of claim 1, wherein the liquid crystal display element is an active matrix addressed display element or a passive matrix addressed display element.
3. A liquid crystal display comprising the liquid crystal composition of claim 1, wherein the liquid crystal display is an active matrix addressed display or a passive matrix addressed display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402669.2A CN113122277B (en) | 2019-12-30 | 2019-12-30 | Liquid crystal composition, liquid crystal display element and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402669.2A CN113122277B (en) | 2019-12-30 | 2019-12-30 | Liquid crystal composition, liquid crystal display element and liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113122277A CN113122277A (en) | 2021-07-16 |
| CN113122277B true CN113122277B (en) | 2023-08-29 |
Family
ID=76768304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911402669.2A Active CN113122277B (en) | 2019-12-30 | 2019-12-30 | Liquid crystal composition, liquid crystal display element and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113122277B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108690637A (en) * | 2017-04-05 | 2018-10-23 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid-crystal composition containing fluoroethoxy compound and its application |
| CN110577832A (en) * | 2018-06-11 | 2019-12-17 | 石家庄诚志永华显示材料有限公司 | negative dielectric anisotropy liquid crystal composition, liquid crystal display element and liquid crystal display |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019127547A (en) * | 2018-01-25 | 2019-08-01 | Jnc株式会社 | Liquid crystal composition, liquid crystal element, and use of liquid crystal composition in liquid crystal element |
-
2019
- 2019-12-30 CN CN201911402669.2A patent/CN113122277B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108690637A (en) * | 2017-04-05 | 2018-10-23 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid-crystal composition containing fluoroethoxy compound and its application |
| CN110577832A (en) * | 2018-06-11 | 2019-12-17 | 石家庄诚志永华显示材料有限公司 | negative dielectric anisotropy liquid crystal composition, liquid crystal display element and liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113122277A (en) | 2021-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111484858B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN111484857B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| KR20200116037A (en) | Liquid crystal composition, liquid crystal display element, liquid crystal display device | |
| CN109880640A (en) | Liquid-crystal composition, liquid crystal display element, liquid crystal display | |
| CN113667490B (en) | Liquid crystal composition and liquid crystal display device | |
| CN112980464A (en) | Negative liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN112940754B (en) | Negative liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN113667488A (en) | Liquid crystal composition and liquid crystal display device | |
| CN112940752B (en) | Liquid crystal composition, liquid crystal display element or liquid crystal display | |
| CN112980462A (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN112940751B (en) | Liquid crystal composition, liquid crystal display element or liquid crystal display | |
| CN112920811B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN113122277B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN113493692B (en) | Negative liquid crystal medium, liquid crystal display element or liquid crystal display | |
| CN112940750B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN113122272B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN112920810B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN113122276B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN112080287B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN113122274B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN113122275B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN109825308B (en) | Negative liquid crystal compound, negative liquid crystal composition and application | |
| CN112961683B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| TWI812953B (en) | A kind of nematic liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN113122270B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |