CN109423303B - Negative dielectric liquid crystal composition containing benzofuran compound and application thereof - Google Patents
Negative dielectric liquid crystal composition containing benzofuran compound and application thereof Download PDFInfo
- Publication number
- CN109423303B CN109423303B CN201710726587.8A CN201710726587A CN109423303B CN 109423303 B CN109423303 B CN 109423303B CN 201710726587 A CN201710726587 A CN 201710726587A CN 109423303 B CN109423303 B CN 109423303B
- Authority
- CN
- China
- Prior art keywords
- general formula
- compounds represented
- liquid crystal
- crystal composition
- formula
- 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
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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
-
- 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
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
- C09K19/3405—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom the heterocyclic ring being a five-membered ring
- C09K2019/3408—Five-membered ring with oxygen(s) in fused, bridged or spiro ring systems
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13712—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having negative dielectric anisotropy
Abstract
The invention relates to a negative dielectric anisotropy liquid crystal composition containing a benzofuran compound and application thereof, wherein the liquid crystal composition comprises at least one or more compounds represented by a general formula I and one or more compounds represented by a general formula II; the liquid crystal composition has low rotational viscosity, large elastic constant, good low-temperature intersolubility and high response speed, can be used for fast response liquid crystal display of various display modes, and can obviously improve the display effect of a liquid crystal display when being used in a VA/MVA/PVA/PSVA, IPS or FFS mode display.
Description
Technical Field
The invention relates to a liquid crystal composition, in particular to a nematic phase liquid crystal composition, and specifically provides a liquid crystal composition with negative dielectric anisotropy, and more specifically provides a liquid crystal composition with fast response time.
Background
Along with the improvement of the requirement of people on the display effect, the requirements of curved surface display, high transmittance, high contrast ratio and the like are more and more favored by more consumers, the requirements of curved surface display, high transmittance and high contrast ratio can be realized by relying on the PSVA technology, the liquid crystal display is suitable for large-size panel requirements, the negative liquid crystal is used in the FFS mode, the transmittance and the hard screen of the liquid crystal display can be improved, the backlight power consumption is reduced, the endurance time is prolonged, and the liquid crystal display is suitable for mobile display equipment such as mobile phones and flat panels.
Negative liquid crystals, which were proposed at the beginning of the 80's last century, are mainly used in VA mode, and have major advantages in high contrast and major disadvantages in small viewing angle and slow response time. With the development of display technology, MVA, PVA, PSVA, and the like technologies have appeared in succession, solving the problems of response time and viewing angle. In recent years, as touch panels become mainstream in the market of mobile devices, IPS and FFS type hard-screen displays have inherent advantages, and both IPS and FFS type displays can use positive liquid crystals and negative liquid crystals, and the positive liquid crystals are aligned along the direction of electric field lines due to the bending electric field existing in the displays, thereby causing bending of molecules and lowering of transmittance; the negative liquid crystal is arranged perpendicular to the direction of the electric field lines, so that the transmittance is greatly improved, and the method is the best method for improving the transmittance and reducing the backlight power consumption at present. However, the response time problem of negative liquid crystals is a significant problem that is currently encountered, and FFS displays using negative liquid crystals have a response time that is 50% or more slower than FFS displays using positive liquid crystals. Therefore, how to increase the response time of the negative liquid crystal is a key issue at present.
Specifically, the response time of the LCD depends on (d ^2 gamma 1)/Keff (d is the thickness of the liquid crystal layer, gamma 1 is the liquid crystal rotational viscosity, and Keff is the effective elastic constant), therefore, the purposes of improving the response time can be achieved by reducing the rotational viscosity, reducing the thickness of the liquid crystal layer and improving the elastic constant, and the thickness of the liquid crystal layer depends on the design of the LCD; for liquid crystal compositions, it is most effective to reduce the rotational viscosity and the liquid crystal thickness.
Disclosure of Invention
The invention aims to provide a fast-response liquid crystal composition containing a negative dielectric anisotropy liquid crystal composition of a benzofuran compound; the liquid crystal composition provided by the invention has low rotational viscosity, and can effectively reduce the response time of a liquid crystal display.
The liquid crystal composition comprises at least one or more compounds represented by a general formula I and one or more compounds represented by a general formula II;
the general formula I is specifically as follows:
in the general formula I, R1Represents C1～C12Linear alkyl or linear alkoxy of (2), wherein one or more are not adjacent CH2May be substituted with O, S or CH ═ CH;
the general formula II is specifically:
in the general formula II, R2、R3Each independently represents C1～C12Wherein one or more non-adjacent CH2May be substituted with O, S or CH ═ CH; a. the1、A2Each independently represents trans-1, 4-cyclohexyl or 1, 4-phenylene.
The invention further provides that in the general formula I, R1Represents C1～C7Linear alkyl or linear alkoxy of (a);
preferably, in the general formula I, R1Represents C1～C5Linear alkyl or linear alkoxy of (a);
more preferably, the compound represented by the general formula I is one or more of the structures shown in formulas IA 1-IA 10:
the invention further provides that the compound represented by the general formula II has a bicyclic structure, and specifically, the compound represented by the general formula II is one or more of structures shown in formulas IIA-IIC:
in the general formulas IIA to IIC, R2Represents C1～C7The linear alkyl group of (1); r3Represents C1～C7Linear alkyl, linear alkoxy or C2～C7A linear alkenyl group of (a);
preferably, in the general formulas IIA to IIC, R2Represents C2～C5The linear alkyl group of (1); r3Represents C1～C5Linear alkyl, linear alkoxy or C2～C5A linear alkenyl group of (a);
more preferably, the compound represented by the general formula II is one or more of the structures shown in the formulas IIA 1-IIA 42, IIB 1-IIB 32 and IIC 1-IIC 24:
the invention further provides that the liquid crystal composition further comprises one or more compounds represented by the general formula III;
the general formula III is specifically:
in the general formula III, R4、R5Each independently represents C1～C12Wherein one or more non-adjacent CH2May be substituted by O or CH ═ CH; a. the3Selected from the following structures:
preferably, the compound represented by the general formula III is one or more of the structures shown in formulas IIIA to IIIC:
in the formulas IIIA to IIIC, R4Represents C2～C10A linear alkyl or linear alkenyl group of (a); r5Represents C1～C8The linear alkyl group of (1);
more preferably, in the formulas IIIA to IIIC, R4Represents C2～C10A linear alkyl or linear alkenyl group of (a); r5Represents C1～C8The linear alkyl group of (1);
more preferably, the compound represented by the general formula III is one or more of the structures shown in formulas IIIA 1-IIIA 25, IIIB 1-IIIB 22 and IIIC 1-IIIC 30:
the invention further provides that the liquid crystal composition also comprises one or more compounds represented by the general formula IV;
the general formula IV is specifically:
in the general formula IV, R6、R7Each independently represents C1～C12Linear alkyl, alkoxy or C2～C12A linear alkenyl group of (a); a. the4Represents 1, 4-cyclohexylene or 1, 4-phenylene; z1Represents a single bond, CH2CH2Or CH2O；
Preferably, the compound represented by the general formula IV is one or more of the structures shown in formulas IVA to IVD:
in the formulae IVA to IVD, R6Represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); r7Represents C1～C7Linear alkyl or linear alkoxy of (a);
more preferably, in the formulae IVA to IVD, R6Represents C2～C5Straight chain alkyl or C2～C4A linear alkenyl group of (a); r7Represents C1～C4Linear alkyl or linear alkoxy of (a);
more preferably, the compound represented by the general formula IV is one or more of the structures shown in the formulas IVA 1-IVA 44, IVB 1-IVB 20, IVC 1-IVC 40 and IVD 1-IVD 16:
the invention further provides that the liquid crystal composition also comprises one or more compounds represented by the general formula V;
the general formula V is specifically:
in the general formula V, R8Represents C1～C12The linear alkyl group of (1); r9Represents F or C1～C12The linear alkyl group of (1); l is1、L2Each independently represents H or F;
preferably, the compound represented by the general formula V is one or more of structures shown in formulas VA-VB:
in the formulae VA to VB, R8、R9Each independently represents C1～C7The linear alkyl group of (1);
more preferably, in the formulae VA to VB, R8、R9Each independently represents C1～C5The linear alkyl group of (1);
more preferably, the compound represented by the general formula V is one or more of structures shown in formulas VA 1-VA 14 and VB 1-VB 4:
the invention further provides that the liquid crystal composition further comprises one or more compounds represented by the general formula VI;
the general formula VI is in particular:
in the general formula VI, R11、R12Each independently represents C1～C12Straight chain alkyl, straight chain alkoxy; l is3Represents H or F;
preferably, the compound represented by formula VI is one or more of the structures shown in formulas VIA to VIB:
in the formulas VIA to VIB, R10、R11Each independently represents C1～C7Straight chain alkyl or alkoxy;
more preferably, in the formulas VIA to VIB, R10、R11Each independently represents C1～C5Straight chainAlkyl or straight chain alkoxy.
The present invention further provides that the liquid crystal composition further comprises one or more compounds represented by formula VII:
the general formula VII is specifically:
in the general formula VII, R12、R13Each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
A5selected from the following structures:
A6selected from the following structures:
preferably, the compound represented by formula VII is one or more of structures represented by formulas VIIA to VIIL:
in the formulas VIIA to VIIL, R12Represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); r13Represents C1～C7Linear alkyl or linear alkoxy of (a);
more preferably, in said formulas VIIA to VIIL, R12Represents C2～C5A linear alkyl or linear alkenyl group of (a); r13Represents C1～C5Linear alkyl or linear alkoxy groups of (1).
The invention further provides that the liquid crystal composition also comprises one or more compounds represented by the general formula VIII;
the general formula VIII is in particular:
in the general formula VIII, R14、R15Each independently represents C1～C12The linear alkyl group of (1); l is4、L5Each independently represents H or F; a. the7Represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
preferably, the compound represented by formula VIII is one or more of the structures shown in formulas VIIIA through VIIIC:
in the formulas VIIIA to VIIIC, R14、R15Each independently represents C1～C7The linear alkyl group of (1);
more preferably, in formulas VIIIA to VIIIC, R14、R15Each independently represents C2～C5Linear alkyl group of (1).
The invention further provides that the liquid crystal composition further comprises one or more compounds represented by the general formula IX;
said general formula IX is in particular:
in said formula IX, R16、R17Each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
preferably, in said formula IX, R16Represents C2～C7Linear alkenyl or linear alkyl of, R17Represents C1～C7Linear alkyl or linear alkoxy of (a);
more preferably, in said formula IX, R16Represents C2～C5A linear alkyl or linear alkenyl group of (a); r17Represents C1～C5Linear alkyl or linear alkoxy groups of (1).
In order to improve the synergistic effect between the various types of compounds, the present invention preferably provides the liquid crystal composition with a percentage of each component.
Specifically, the liquid crystal composition comprises the following components in percentage by weight:
1) 1-40% of one or more compounds represented by the general formula (I); 2) 10-65% of one or more compounds represented by the general formula (II); 3)0 to 35% of one or more compounds represented by the general formula (III); 4)0 to 30% of one or more compounds represented by the general formula (IV); 5)0 to 40% of one or more compounds represented by the general formula (V); 6)0 to 20% of one or more compounds represented by the general formula (VI); 7)0 to 60% of one or more compounds represented by the general formula (VII); 8)0 to 10% of one or more compounds represented by the general formula (VIII); 9)0 to 45% of one or more compounds represented by the general formula (IX);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 1-30% of one or more compounds represented by the general formula (I); 2) 20-55% of one or more compounds represented by the general formula (II); 3)0 to 25% of one or more compounds represented by the general formula (III); 4)0 to 25% of one or more compounds represented by the general formula (IV); 5)0 to 30% of one or more compounds represented by the general formula (V); 6)0 to 15% of one or more compounds represented by the general formula (VI); 7)0 to 55% of one or more compounds represented by the general formula (VII); 8)0 to 7% of one or more compounds represented by the general formula (VIII); 9)0 to 37% of one or more compounds represented by the general formula (IX);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 2-25% of one or more compounds represented by the general formula (I); 2) 27-53% of one or more compounds represented by the general formula (II); 3)0 to 21% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6)0 to 10% of one or more compounds represented by the general formula (VI); 7)0 to 48% of one or more compounds represented by the general formula (VII); 8)0 to 4% of one or more compounds represented by the general formula (VIII); 9)0 to 33% of one or more compounds represented by the general formula (IX);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 8-30% of one or more compounds represented by the general formula (I); 2) 25-55% of one or more compounds represented by the general formula (II); 3)0 to 25% of one or more compounds represented by the general formula (III); 4)0 to 20% of one or more compounds represented by the general formula (IV); 5)0 to 30% of one or more compounds represented by the general formula (V); 6)0 to 10% of one or more compounds represented by the general formula (VI); 7)0 to 45% of one or more compounds represented by the general formula (VII); 8)0 to 7% of one or more compounds represented by the general formula (VIII); 9)0 to 37% of one or more compounds represented by the general formula (IX);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-25% of one or more compounds represented by the general formula (I); 2) 29-53% of one or more compounds represented by the general formula (II); 3)0 to 21% of one or more compounds represented by the general formula (III); 4)0 to 16% of one or more compounds represented by the general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6)0 to 6% of one or more compounds represented by the general formula (VI); 7)0 to 40% of one or more compounds represented by the general formula (VII); 8)0 to 4% of one or more compounds represented by the general formula (VIII); 9)0 to 33% of one or more compounds represented by the general formula (IX);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 1-8% of one or more compounds represented by the general formula (I); 2) 23-55% of one or more compounds represented by the general formula (II); 3)0 to 20% of one or more compounds represented by the general formula (III); 4) 5-23% of one or more compounds represented by general formula (IV); 5)0 to 30% of one or more compounds represented by the general formula (V); 6)0 to 15% of one or more compounds represented by the general formula (VI); 7)0 to 55% of one or more compounds represented by the general formula (VII); 8)0 to 30% of one or more compounds represented by the general formula (IX);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 2-8% of one or more compounds represented by the general formula (I); 2) 27-48% of one or more compounds represented by the general formula (II); 3) 0-17% of one or more compounds represented by the general formula (III); 4) 8-19% of one or more compounds represented by general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6)0 to 10% of one or more compounds represented by the general formula (VI); 7)0 to 48% of one or more compounds represented by the general formula (VII); 8)0 to 27% of one or more compounds represented by the general formula (IX);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 2-30% of one or more compounds represented by the general formula (I); 2) 25-55% of one or more compounds represented by the general formula (II); 3) 1-25% of one or more compounds represented by the general formula (III); 4)0 to 25% of one or more compounds represented by the general formula (IV); 5)0 to 15% of one or more compounds represented by the general formula (V); 6)0 to 45% of one or more compounds represented by the general formula (VII); 7)0 to 7% of one or more compounds represented by the general formula (VIII); 8)0 to 36% of one or more compounds represented by the general formula (IX);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 4-25% of one or more compounds represented by the general formula (I); 2) 29-53% of one or more compounds represented by the general formula (II); 3) 5-21% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5)0 to 10% of one or more compounds represented by the general formula (V); 6)0 to 40% of one or more compounds represented by the general formula (VII); 7)0 to 4% of one or more compounds represented by the general formula (VIII); 8)0 to 33% of one or more compounds represented by the general formula (IX);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 1-18% of one or more compounds represented by the general formula (I); 2) 23-48% of one or more compounds represented by the general formula (II); 3) 1-20% of one or more compounds represented by general formula (IV); 4)0 to 30% of one or more compounds represented by the general formula (V); 5)0 to 15% of one or more compounds represented by the general formula (VI); 6) 20-55% of one or more compounds represented by the general formula (VII);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 2-14% of one or more compounds represented by the general formula (I); 2) 27-43% of one or more compounds represented by the general formula (II); 3) 2-15% of one or more compounds represented by general formula (IV); 4)0 to 25% of one or more compounds represented by the general formula (V); 5)0 to 10% of one or more compounds represented by the general formula (VI); 6) 29-48% of one or more compounds represented by the general formula (VII);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 10-30% of one or more compounds represented by the general formula (I); 2) 25-55% of one or more compounds represented by the general formula (II); 3) 3-25% of one or more compounds represented by the general formula (III); 4)0 to 15% of one or more compounds represented by the general formula (V); 5)0 to 45% of one or more compounds represented by the general formula (VII); 6)0 to 7% of one or more compounds represented by the general formula (VIII); 7)0 to 25% of one or more compounds represented by the general formula (IX);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 12-25% of one or more compounds represented by the general formula (I); 2) 29-53% of one or more compounds represented by the general formula (II); 3) 6-21% of one or more compounds represented by the general formula (III); 4)0 to 10% of one or more compounds represented by the general formula (V); 5)0 to 40% of one or more compounds represented by the general formula (VII); 6)0 to 4% of one or more compounds represented by the general formula (VIII); 7)0 to 20% of one or more compounds represented by the general formula (IX);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 1-15% of one or more compounds represented by general formula (I); 2) 23-52% of one or more compounds represented by the general formula (II); 3)0 to 20% of one or more compounds represented by the general formula (III); 4) 1-24% of one or more compounds represented by general formula (IV); 5)0 to 30% of one or more compounds represented by the general formula (V); 6)0 to 15% of one or more compounds represented by the general formula (VI); 7)0 to 53% of one or more compounds represented by the general formula (VII); 8)0 to 36% of one or more compounds represented by the general formula (IX);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 2-14% of one or more compounds represented by the general formula (I); 2) 27-48% of one or more compounds represented by the general formula (II); 3) 0-17% of one or more compounds represented by the general formula (III); 4) 2-19% of one or more compounds represented by general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6)0 to 10% of one or more compounds represented by the general formula (VI); 7)0 to 48% of one or more compounds represented by the general formula (VII); 8)0 to 33% of one or more compounds represented by the general formula (IX);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 1-30% of one or more compounds represented by the general formula (I); 2) 23-52% of one or more compounds represented by the general formula (II); 3)0 to 15% of one or more compounds represented by the general formula (III); 4)0 to 24% of one or more compounds represented by the general formula (IV); 5)0 to 28% of one or more compounds represented by the general formula (V); 6)0 to 15% of one or more compounds represented by the general formula (VI); 7) 1-54% of one or more compounds represented by the general formula (VII); 8)0 to 36% of one or more compounds represented by the general formula (IX);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 2-25% of one or more compounds represented by the general formula (I); 2) 27-48% of one or more compounds represented by the general formula (II); 3)0 to 11% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6)0 to 10% of one or more compounds represented by the general formula (VI); 7) 7-48% of one or more compounds represented by the general formula (VII); 8)0 to 33% of one or more compounds represented by the general formula (IX);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 3-30% of one or more compounds represented by the general formula (I); 2) 26-55% of one or more compounds represented by the general formula (II); 3) 10-25% of one or more compounds represented by the general formula (III); 4)0 to 23% of one or more compounds represented by the general formula (IV); 5)0 to 15% of one or more compounds represented by the general formula (V); 6)0 to 7% of one or more compounds represented by the general formula (VIII); 7)0 to 30% of one or more compounds represented by the general formula (IX);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 6-25% of one or more compounds represented by the general formula (I); 2)31 to 53% of one or more compounds represented by the general formula (II); 3) 12-21% of one or more compounds represented by the general formula (III); 4)0 to 18% of one or more compounds represented by the general formula (IV); 5)0 to 10% of one or more compounds represented by the general formula (V); 6)0 to 4% of one or more compounds represented by the general formula (VIII); 7)0 to 27% of one or more compounds represented by the general formula (IX);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 1-30% of one or more compounds represented by the general formula (I); 2) 20-55% of one or more compounds represented by the general formula (II); 3)0 to 25% of one or more compounds represented by the general formula (III); 4)0 to 25% of one or more compounds represented by the general formula (IV); 5)0 to 30% of one or more compounds represented by the general formula (V); 6)0 to 15% of one or more compounds represented by the general formula (VI); 7)0 to 55% of one or more compounds represented by the general formula (VII); 8)0 to 7% of one or more compounds represented by the general formula (VIII);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 2-25% of one or more compounds represented by the general formula (I); 2) 27-53% of one or more compounds represented by the general formula (II); 3)0 to 21% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6)0 to 10% of one or more compounds represented by the general formula (VI); 7)0 to 48% of one or more compounds represented by the general formula (VII); 8)0 to 4% of one or more compounds represented by the general formula (VIII);
the liquid crystal composition provided by the invention further provides that the liquid crystal composition comprises the following components in percentage by weight:
1) 3-15% of one or more compounds represented by the general formula (I); 2)27 to 50% of one or more compounds represented by the general formula (II); 3) 5-21% of one or more compounds represented by the general formula (III); 4)0 to 22% of one or more compounds represented by the general formula (IV); 5)0 to 10% of one or more compounds represented by the general formula (V); 6)0 to 20% of one or more compounds represented by the general formula (VII); 7) 15-36% of one or more compounds represented by general formula (IX);
preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-12% of one or more compounds represented by the general formula (I); 2) 31-45% of one or more compounds represented by the general formula (II); 3) 9-17% of one or more compounds represented by the general formula (III); 4)0 to 18% of one or more compounds represented by the general formula (IV); 5)0 to 6% of one or more compounds represented by the general formula (V); 6)0 to 15% of one or more compounds represented by the general formula (VII); 7)19 to 33% of one or more compounds represented by the general formula (IX).
As a preferable scheme of the invention, the liquid crystal composition comprises the following components in percentage by weight:
1) 2-14% of one or more compounds represented by the general formula (I); 2) 27-43% of one or more compounds represented by the general formula (II); 3) 2-15% of one or more compounds represented by general formula (IV); 4)0 to 25% of one or more compounds represented by the general formula (V); 5)0 to 10% of one or more compounds represented by the general formula (VI); 6) 29-48% of one or more compounds represented by the general formula (VII);
or the like, or, alternatively,
1) 12-25% of one or more compounds represented by the general formula (I); 2) 29-53% of one or more compounds represented by the general formula (II); 3) 6-21% of one or more compounds represented by the general formula (IV); 4)0 to 10% of one or more compounds represented by the general formula (V); 5)0 to 40% of one or more compounds represented by the general formula (VII); 6)0 to 4% of one or more compounds represented by the general formula (VIII); 7)0 to 20% of one or more compounds represented by the general formula (IX);
or the like, or, alternatively,
1) 4-25% of one or more compounds represented by the general formula (I); 2) 29-50% of one or more compounds represented by the general formula (II); 3)0 to 21% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5)0 to 10% of one or more compounds represented by the general formula (VI); 6)0 to 40% of one or more compounds represented by the general formula (VII); 7)0 to 4% of one or more compounds represented by the general formula (VIII); 8)0 to 33% of one or more compounds represented by the general formula (IX);
or the like, or, alternatively,
1) 2-25% of one or more compounds represented by the general formula (I); 2) 27-53% of one or more compounds represented by the general formula (II); 3)0 to 21% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6)0 to 48% of one or more compounds represented by the general formula (VII); 7)0 to 4% of one or more compounds represented by the general formula (VIII); 8)0 to 33% of one or more compounds represented by the general formula (IX);
or the like, or, alternatively,
1) 6-25% of one or more compounds represented by the general formula (I); 2)31 to 50% of one or more compounds represented by the general formula (II); 3) 12-21% of one or more compounds represented by the general formula (III); 4)0 to 18% of one or more compounds represented by the general formula (IV); 5)0 to 10% of one or more compounds represented by the general formula (V); 6)0 to 4% of one or more compounds represented by the general formula (VIII); 7)0 to 27% of one or more compounds represented by the general formula (IX);
or the like, or, alternatively,
1) 2-25% of one or more compounds represented by the general formula (I); 2) 27-48% of one or more compounds represented by the general formula (II); 3)0 to 21% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6)0 to 10% of one or more compounds represented by the general formula (VI); 7)0 to 4% of one or more compounds represented by the general formula (VIII); 9)0 to 33% of one or more compounds represented by the general formula (IX);
or the like, or, alternatively,
1) 2-25% of one or more compounds represented by the general formula (I); 2) 27-53% of one or more compounds represented by the general formula (II); 3)0 to 21% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6)0 to 10% of one or more compounds represented by the general formula (VI); 7)0 to 48% of one or more compounds represented by the general formula (VII); 8)0 to 4% of one or more compounds represented by the general formula (VIII);
or the like, or, alternatively,
1) 2-25% of one or more compounds represented by the general formula (I); 2) 27-48% of one or more compounds represented by the general formula (II); 3) 0-9% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5)0 to 25% of one or more compounds represented by the general formula (V); 6) 29-48% of one or more compounds represented by the general formula (VII);
or the like, or, alternatively,
1) 4-25% of one or more compounds represented by the general formula (I); 2) 29-50% of one or more compounds represented by the general formula (II); 3)0 to 21% of one or more compounds represented by the general formula (III); 4)0 to 19% of one or more compounds represented by the general formula (IV); 5) 29-40% of one or more compounds represented by the general formula (VII).
The compound represented by the general formula I in the liquid crystal composition provided by the invention is a compound with a dibenzofuran structure, has great negative dielectric anisotropy, and can effectively increase the dielectric anisotropy of the liquid crystal composition; the compound represented by the general formula II is a two-ring structure, has extremely low rotational viscosity and is used as the optimal choice for reducing the rotational viscosity of the liquid crystal composition; the liquid crystal composition provided by the invention increases the dielectric anisotropy by adding the compound of the type I, so that the use of polar monomers is reduced, the use of the compound of the type II is increased, and the aim of reducing the rotational viscosity of the liquid crystal composition is fulfilled.
The method for preparing the liquid crystal composition of the present invention is not particularly limited, and two or more compounds may be mixed and produced by a conventional method. For example, the liquid crystal composition is prepared by mixing the respective component compounds under high temperature conditions and dissolving them with each other; or dissolving the respective component compounds in a solvent for the compounds, and mixing, and then distilling off the solvent under reduced pressure; or dissolving a component compound with a smaller content in a main component compound with a larger content at a higher temperature; or dissolving the components in organic solvent, mixing the solutions, and removing solvent to obtain liquid crystal composition.
The liquid crystal composition has low rotational viscosity, large elastic constant, good low-temperature intersolubility and high response speed, can be used for fast response liquid crystal display of various display modes, and can obviously improve the display effect of a liquid crystal display when being used in a VA/MVA/PVA/PSVA, IPS or FFS mode display.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Unless otherwise indicated, percentages in the present invention are weight percentages; the temperature units are centigrade; Δ n represents optical anisotropy (25 ℃); Δ ε represents the dielectric anisotropy (25 ℃, 1000 Hz); v10Represents a threshold voltage, which is a characteristic voltage (V, 25 ℃) at which the relative transmittance changes by 10%; gamma 1 represents rotary viscosityDegree (mpa.s, 25 ℃); cp represents the clearing point (. degree. C.) of the liquid crystal composition; k11、K22、K33Respectively representing the splay, twist and bend elastic constants (pN, 25 ℃).
In the following examples, the group structures in the liquid crystal compounds are represented by codes shown in Table 1.
Table 1: radical structure code of liquid crystal compound
Take the following compound structure as an example:
expressed as: 2OEO1R
Expressed as: 3CPWO1
In the following examples, the liquid crystal composition was prepared by a thermal dissolution method, comprising the steps of: weighing the liquid crystal compound by a balance according to the weight percentage, wherein the weighing and adding sequence has no specific requirements, generally weighing and mixing the liquid crystal compound in sequence from high melting point to low melting point, heating and stirring at 60-100 ℃ to uniformly melt all the components, filtering, performing rotary evaporation, and finally packaging to obtain the target sample.
In the following examples, the weight percentages of the components in the liquid crystal composition and the performance parameters of the liquid crystal composition are shown in the following tables.
Example 1
Table 2: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 2
Table 3: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 3
Table 4: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 4
Table 5: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 5
Table 6: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 6
Table 7: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 7
Table 8: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 8
Table 9: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 9
Table 10: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 10
Table 11: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 11
Table 12: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 12
Table 13: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 13
Table 14: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 14
Table 15: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 15
Table 16: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 16
Table 17: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 17
Table 18: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 18
Table 19: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 19
Table 20: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 20
Table 21: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 21
Table 22: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 22
Table 23: the weight percentage and performance parameters of each component in the liquid crystal composition
Comparative example 1
Table 24: the weight percentage and performance parameters of each component in the liquid crystal composition
The liquid crystal compositions obtained in example 1 and comparative example 1 were compared together for each of their performance parameter values, see table 25.
Table 25: comparison of Performance parameters of liquid Crystal compositions
| △n | △ε | Cp | γ1 | K11 | K22 | K33 | |
| Example 1 | 0.101 | -2.8 | 75 | 44 | 13.6 | 6.8 | 13.8 |
| Comparative example 1 | 0.098 | -2.7 | 76 | 65 | 11.8 | 5.9 | 13.6 |
By comparison, it can be seen that: example 1 provides a liquid crystal composition having a low rotational viscosity, a larger elastic constant, i.e., a faster response time, than comparative example 1.
As can be seen from the above embodiments, the liquid crystal composition containing a dibenzofuran liquid crystal compound provided by the present invention has low viscosity, high resistivity, suitable optical anisotropy, good low-temperature mutual solubility, large elastic constant, and excellent light stability and thermal stability, and can reduce the response time of a liquid crystal display, thereby solving the problem of slow response speed of the liquid crystal display. Therefore, the liquid crystal composition provided by the invention is suitable for fast-response IPS and FFS and VA type liquid crystal display devices such as MVA, PVA, PSVA and the like, and is particularly suitable for fast-response liquid crystal display devices.
Although the invention has been described in detail hereinabove by way of general description, specific embodiments and experiments, it will be apparent to those skilled in the art that many modifications and improvements can be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (4)
1. A negative dielectric anisotropy liquid crystal composition containing a benzofuran compound is characterized by comprising the following components in percentage by weight:
1) 2-8% of one or more compounds represented by the general formula I;
2) 27-48% of one or more compounds represented by the general formula II;
3) 0-17% of one or more compounds represented by formula III;
4) 8-19% of one or more compounds represented by formula IV;
5) 0-25% of one or more compounds represented by formula V;
6) 0-10% of one or more compounds represented by general formula VI;
7) 0-48% of one or more compounds represented by formula VII;
8) 0-27% of one or more compounds of formula IX;
or, the composition comprises the following components in percentage by weight:
1) 5-12% of one or more compounds represented by the general formula I;
2) 31-45% of one or more compounds represented by general formula II;
3) 9-17% of one or more compounds represented by the general formula III;
4) 0-18% of one or more compounds represented by formula IV;
5) 0-6% of one or more compounds represented by the general formula V;
6) 0-15% of one or more compounds represented by formula VII;
7) 19-33% of one or more compounds represented by formula IX;
wherein the compound represented by the general formula I is specifically one or more of the following structures:
the compound represented by the general formula II is one or more of structures shown in formulas IIA 1-IIA 42, IIB 1-IIB 32 and IIC 1-IIC 24:
the compound represented by the general formula III is one or more of structures shown in formulas IIIA 1-IIIA 25, IIIB 1-IIIB 22 and IIIC 1-IIIC 30:
the compound represented by the general formula IV is one or more of structures shown in formulas IVA 1-IVA 44, IVB 1-IVB 20, IVC 1-IVC 40 and IVD 1-IVD 16:
the compound represented by the general formula VI is one or more of structures shown in formulas VIA-VIB:
in the formulas VIA to VIB, R10、R11Each independently represents C1～C7Straight chain alkyl or alkoxy;
the compound represented by the general formula V is one or more of structures shown in formulas VA 1-VA 14 and VB 1-VB 4:
said general formula IX is in particular:
in said formula IX, R16Represents C2～C5A linear alkyl or linear alkenyl group of (a); r17Represents C1～C5Linear alkyl or linear alkoxy of (a);
the compound represented by the general formula VII is one or more of structures shown in formulas VIIA to VIIL:
in the formulas VIIA to VIIL, R12Represents C2～C5A linear alkyl or linear alkenyl group of (a); r13Represents C1～C5Linear alkyl or linear alkoxy groups of (1).
2. The liquid crystal composition of claim 1, wherein the liquid crystal composition is used in a liquid crystal display.
3. Use of the liquid crystal composition of claim 1 in a fast response liquid crystal display.
4. Use of a liquid crystal composition according to claim 1 in a VA/MVA/PVA/PSVA, IPS or FFS mode display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726587.8A CN109423303B (en) | 2017-08-22 | 2017-08-22 | Negative dielectric liquid crystal composition containing benzofuran compound and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726587.8A CN109423303B (en) | 2017-08-22 | 2017-08-22 | Negative dielectric liquid crystal composition containing benzofuran compound and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109423303A CN109423303A (en) | 2019-03-05 |
| CN109423303B true CN109423303B (en) | 2021-09-14 |
Family
ID=65498557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710726587.8A Active CN109423303B (en) | 2017-08-22 | 2017-08-22 | Negative dielectric liquid crystal composition containing benzofuran compound and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109423303B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109652097B (en) * | 2018-05-18 | 2023-06-02 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition, liquid crystal display element and liquid crystal display |
| CN111944540A (en) * | 2019-05-16 | 2020-11-17 | 北京八亿时空液晶科技股份有限公司 | Acetylene negative monocrystal-containing liquid crystal composition and application thereof |
| CN113122273A (en) * | 2019-12-30 | 2021-07-16 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition, liquid crystal display element and liquid crystal display |
| CN114437734A (en) * | 2020-11-02 | 2022-05-06 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition containing terphenyl and terminal naphthenic base and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942461A (en) * | 2004-04-14 | 2007-04-04 | 默克专利股份有限公司 | Dibenzofuran-, dibenzothiophene- and fluorene derivatives |
| CN104593011A (en) * | 2015-02-15 | 2015-05-06 | 石家庄诚志永华显示材料有限公司 | Cyclopropyl-contained negative dielectric anisotropic liquid crystal medium and application thereof |
| CN104926765A (en) * | 2014-03-17 | 2015-09-23 | 默克专利股份有限公司 | 4,6-difluorodibenzofuran derivatives |
| CN106103652A (en) * | 2014-03-17 | 2016-11-09 | 默克专利股份有限公司 | Liquid crystal media |
| CN106883865A (en) * | 2015-12-15 | 2017-06-23 | 北京八亿时空液晶科技股份有限公司 | A kind of negative dielectric anisotropy liquid crystal composition containing benzofuran and its application |
| CN107973766A (en) * | 2016-10-21 | 2018-05-01 | 石家庄诚志永华显示材料有限公司 | The liquid-crystal compounds of dibenzofuran derivative containing cycloalkyl and its application |
| CN108794330A (en) * | 2017-05-05 | 2018-11-13 | 石家庄诚志永华显示材料有限公司 | Polymerizable compound, liquid crystal media and liquid crystal display device comprising the polymerizable compound |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10336016B4 (en) * | 2003-08-01 | 2017-10-19 | Merck Patent Gmbh | Fluorinated polycycles and their use in liquid crystal mixtures |
| WO2012159213A1 (en) * | 2011-05-25 | 2012-11-29 | American Dye Source, Inc. | Compounds with oxime ester and/or acyl groups |
| CN103058968B (en) * | 2012-12-24 | 2015-11-18 | 石家庄诚志永华显示材料有限公司 | Liquid crystalline cpd containing the sub-methoxyl group bridge of cumarone and difluoro and preparation method thereof and application |
| CN106675575B (en) * | 2015-11-06 | 2018-12-18 | 江苏和成显示科技有限公司 | A kind of dielectric negative liquid crystal compound and the preparation method and application thereof |
| CN106883861B (en) * | 2015-12-16 | 2019-04-19 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid-crystal compounds, composition and its application |
-
2017
- 2017-08-22 CN CN201710726587.8A patent/CN109423303B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942461A (en) * | 2004-04-14 | 2007-04-04 | 默克专利股份有限公司 | Dibenzofuran-, dibenzothiophene- and fluorene derivatives |
| CN104926765A (en) * | 2014-03-17 | 2015-09-23 | 默克专利股份有限公司 | 4,6-difluorodibenzofuran derivatives |
| CN106103652A (en) * | 2014-03-17 | 2016-11-09 | 默克专利股份有限公司 | Liquid crystal media |
| CN104593011A (en) * | 2015-02-15 | 2015-05-06 | 石家庄诚志永华显示材料有限公司 | Cyclopropyl-contained negative dielectric anisotropic liquid crystal medium and application thereof |
| CN106883865A (en) * | 2015-12-15 | 2017-06-23 | 北京八亿时空液晶科技股份有限公司 | A kind of negative dielectric anisotropy liquid crystal composition containing benzofuran and its application |
| CN107973766A (en) * | 2016-10-21 | 2018-05-01 | 石家庄诚志永华显示材料有限公司 | The liquid-crystal compounds of dibenzofuran derivative containing cycloalkyl and its application |
| CN108794330A (en) * | 2017-05-05 | 2018-11-13 | 石家庄诚志永华显示材料有限公司 | Polymerizable compound, liquid crystal media and liquid crystal display device comprising the polymerizable compound |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109423303A (en) | 2019-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109423303B (en) | Negative dielectric liquid crystal composition containing benzofuran compound and application thereof | |
| CN109423301B (en) | Negative dielectric anisotropy liquid crystal composition and application thereof | |
| WO2013018796A1 (en) | Nematic liquid crystal composition | |
| CN110484279B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| TW201412956A (en) | Liquid crystal display element, and liquid crystal composition and use thereof | |
| WO2015034018A1 (en) | Nematic liquid crystal composition and liquid crystal display element using same | |
| WO2015050035A1 (en) | Nematic liquid crystal composition and liquid crystal display element using same | |
| CN108624332B (en) | Negative dielectric liquid crystal composition and application thereof | |
| WO2014061365A1 (en) | Nematic liquid crystal composition | |
| WO2014061366A1 (en) | Nematic liquid crystal composition | |
| CN107760317B (en) | Liquid crystal composition containing cyclohexenyl liquid crystal compound and application thereof | |
| WO2014030481A1 (en) | Nematic liquid crystal composition | |
| WO2014030482A1 (en) | Nematic liquid crystal composition | |
| JP2017052933A (en) | Liquid crystal medium | |
| CN111154500A (en) | Liquid crystal composition and liquid crystal display element | |
| WO2014034772A1 (en) | Nematic liquid crystal composition | |
| JP2012077201A (en) | Nematic liquid crystal composition and liquid crystal display element using the same | |
| CN107541221B (en) | Liquid crystal composition containing polyfluorobiphenyl liquid crystal compound and application thereof | |
| JP6044826B2 (en) | Nematic liquid crystal composition | |
| CN108659855B (en) | Negative dielectric liquid crystal composition and application thereof | |
| CN107345142B (en) | Negative dielectric anisotropy liquid crystal composition containing naphthalene ring and application thereof | |
| CN113072956B (en) | High-contrast negative liquid crystal composition containing phenprobucol and application thereof | |
| CN107151557B (en) | Liquid crystal composition containing cyclohexene compound and application | |
| CN107548413B (en) | Liquid-crystalline medium | |
| JP5910800B1 (en) | Nematic liquid crystal composition |
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 |