WO2024104135A1 - 液晶组合物及液晶显示面板 - Google Patents

液晶组合物及液晶显示面板 Download PDF

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WO2024104135A1
WO2024104135A1 PCT/CN2023/128224 CN2023128224W WO2024104135A1 WO 2024104135 A1 WO2024104135 A1 WO 2024104135A1 CN 2023128224 W CN2023128224 W CN 2023128224W WO 2024104135 A1 WO2024104135 A1 WO 2024104135A1
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Prior art keywords
liquid crystal
crystal composition
substituted
independently
carbon atoms
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PCT/CN2023/128224
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English (en)
French (fr)
Inventor
李珊
刘晓
Original Assignee
惠州华星光电显示有限公司
Tcl华星光电技术有限公司
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Publication of WO2024104135A1 publication Critical patent/WO2024104135A1/zh

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    • 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
    • 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
    • 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
    • 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

Definitions

  • the present application relates to the display field, and in particular to a liquid crystal composition and a liquid crystal display panel.
  • LCD liquid crystal display
  • the liquid crystal materials used in display elements and display devices of IPS display mode, FFS display mode, VA display mode, etc. are required to have 1 low driving voltage: the liquid crystal material has a large dielectric anisotropy; 2 fast response: the liquid crystal material has a small viscosity and a large elastic coefficient; 3 high temperature resistance: the liquid crystal material has a high clearing point; 4 high contrast: the liquid crystal material has suitable optical anisotropy and dielectric negativity.
  • the present application provides a liquid crystal composition and a liquid crystal display panel to improve the contrast, response time and other performance of the liquid crystal display panel.
  • liquid crystal composition which comprises one or more compounds represented by formula I:
  • n and n are independently 0, 1, 2 or 3;
  • L 1 and L 2 are independently H, F, Cl, Br, I, CN, or an alkyl group having 1 to 15 carbon atoms;
  • R1 and R2 are independently H, F, Cl, Br, I, CN, SCN, NCS, SF5 , or an alkyl or alkoxy group having 1 to 15 carbon atoms, or an alkenyl, alkenyloxy, alkynyl or alkynyloxy group having 2 to 15 carbon atoms; the terminal group of R1 and the terminal group of R2 are zero-substituted or mono-substituted by H, CN or CF3, and the CH2 group in R1 and R2 is -O-, -S-, -SO2- , -CO- , -C(O)O- , -OC ( O ) -, -OC(O)O-, -CF2O-, -OCF2- , -CH2CH2-, -CF2CF2-, -CF2CH2- , -CH2CF2- , -CHF - CHF- , -CH2O- , -OCH2
  • L 1 and L 2 are H and F independently of each other.
  • both L1 and L2 are F.
  • Z 1 and Z 2 are independently a single bond, -O-, -CF 2 O-, -OCF 2 -, -CH 2 O-, or -OCH 2 -.
  • the R 1 and the R 2 are independently H or F.
  • the compound represented by Formula I is selected from one or more of the compounds represented by the following subformulae I-1 to I-27; subformulae I-1 to I-27 are specifically:
  • R1 and R2 are independently H, F, or an alkyl or alkoxy group having 1-7 carbon atoms, or an alkenyl, alkenyloxy, alkynyl or alkynyloxy group having 2-7 carbon atoms, one or two CH2 groups in R1 and R2 are substituted by -O-, -C(O)O-, -OC(O)-, -CF2O- , -OCF2- , -CH2O- , -OCH2- , and the heteroatom is not directly bonded; the alkyl or alkoxy group is preferably a straight chain compound having 1-7 carbon atoms.
  • the compound represented by Formula I is selected from one or more of the following subformulae IA-1 to IA-27, wherein Formulae IA-1 to IA-27 are specifically:
  • the liquid crystal composition further comprises a neutral monomer.
  • the neutral monomer includes any one or more of the compounds represented by formulae II1 to II9; formulae II1 to II9 are specifically:
  • R3 and R4 are independently an alkyl or alkoxy group having 1 to 10 carbon atoms, or an alkenyl, alkenyloxy, alkynyl or alkynyloxy group having 2 to 10 carbon atoms; and the H atoms in said R3 and said R4 are zero-substituted, mono-substituted or poly-substituted by F, Cl, Br or I.
  • the liquid crystal composition further comprises a polar monomer
  • the polar monomer comprises any one or more of the compounds represented by formulae III1 to III5; formulae III1 to III5 are specifically:
  • R5 and R6 are independently an alkyl or alkoxy group having 1-10 carbon atoms, or an alkenyl, alkenyloxy, alkynyl or alkynyloxy group having 2-10 carbon atoms; and the H atoms in said R5 and said R6 are zero-substituted, mono-substituted or poly-substituted by F, Cl, Br or I.
  • the liquid crystal composition comprises Said Said Said Said Said Said Said Said Said Said Said Said Said The weight percentages are 30%, 8%, 13%, 5%, 8%, 6%, 10%, 6%, 8%, 6% respectively; or
  • the liquid crystal composition comprises Said Said Said Said Said Said Said Said Said Said Said Said Said The weight percentages are 18%, 11%, 5%, 11%, 8%, 6%, 7%, 6%, 7%, 7%, 14% respectively; or,
  • the liquid crystal composition comprises Said Said Said Said Said Said Said Said Said Said Said Said Said The weight percentages are 35%, 5%, 10%, 8%, 9%, 2%, 4%, 10%, 6%, 7%, 4% respectively; or,
  • the liquid crystal composition comprises Said Said Said Said Said Said Said Said Said Said Said Said Said Said Said Said The weight percentages are 10%, 10%, 10%, 5%, 9%, 9%, 8%, 5%, 5%, 5%, 5%, 5%, 7%, 7% respectively; or,
  • the liquid crystal composition comprises Said Said Said Said Said Said Said Said Said Said Said Said Said The mass percentages are 35%, 10%, 5%, 6%, 6%, 7%, 8%, 9%, 6%, 8% respectively; or,
  • the liquid crystal composition comprises Said Said Said Said Said Said Said Said Said Said Said Said Said The weight percentages are 35%, 3%, 5%, 3%, 8%, 9%, 8%, 6%, 4%, 6%, 6%, 3%, and 4% respectively.
  • the present application also provides a liquid crystal display panel, which includes a first substrate, a second substrate, and a liquid crystal layer, the first substrate and the second substrate are arranged relative to each other, the liquid crystal layer is arranged between the first substrate and the second substrate, and the liquid crystal layer includes the liquid crystal composition described in any embodiment of the present application.
  • the present application provides a liquid crystal composition and a liquid crystal display panel, wherein the liquid crystal composition has low viscosity and a large clearing point, dielectric negativity, optical anisotropy, oblique elastic coefficient and bending elastic coefficient, thereby improving the contrast of the liquid crystal display panel and accelerating the response speed of the liquid crystal display panel.
  • FIG. 1 is a schematic diagram of the structure of a liquid crystal display panel provided in an embodiment of the present application.
  • the embodiments of the present application provide a liquid crystal composition and a liquid crystal display panel including the liquid crystal composition, so as to improve the performance of the liquid crystal display panel, such as contrast and response time.
  • liquid crystal composition provided by the present application includes one or more compounds represented by Formula I:
  • n and n are independently 0, 1, 2 or 3; preferably, m and n are independently 0, 1 or 2; and particularly preferably, m and n are independently 0 or 1.
  • L 1 and L 2 are independently H, F, Cl, Br, I, CN, or an alkyl group having 1 to 15 carbon atoms.
  • L 1 and L 2 are independently H or F. It is particularly preferred that both L 1 and L 2 are F.
  • each of the and each of the Each independently Particularly preferably, each of the and each of the Each independently Said and One or more H in the group may be replaced by F, Cl or Br.
  • R1 and R2 are independently H, F, Cl, Br, I, CN, SCN, NCS, SF5 ; preferably, R1 and R2 are independently H or F.
  • R1 and R2 are independently alkyl or alkoxy with 1 to 15 carbon atoms, and the alkyl or alkoxy can be a straight chain group or a branched chain group, the straight chain group is a straight chain aliphatic hydrocarbon group, and the branched chain group is a branched chain aliphatic hydrocarbon group;
  • R 1 and R 2 are independently a straight-chain group having 1 to 7 carbon atoms; particularly preferably, R 1 and R 2 are independently a methyl group, a methoxy group, an ethyl group, an ethoxy group, a propyl group, a propoxy group, a butyl group, a butoxy group, a pentyl group, a pentyl group, a pentyl group, a hexyl
  • R 1 and R 2 are independently an alkenyl group, an alkenyloxy group, an alkynyl group or an alkynyloxy group having 2 to 15 carbon atoms, wherein the alkenyl group, the alkenyloxy group, the alkynyl group or the alkynyloxy group may be a straight-chain group or a branched-chain group, and the alkenyl group, the alkenyloxy group, the alkynyl group or the alkynyloxy group may have at least one carbon-carbon double bond or carbon-carbon triple bond; preferably, R 1 and R 2 are independently an alkenyl group or an alkynyl group having 2 to 7 carbon atoms, particularly preferably, R 1 and R 2 are independently vinyl, prop-1-enyl, prop-2-enyl, but-1-enyl, but-2-enyl, but-3-enyl, pent-1-enyl, pent-2-enyl, pent-3-enyl,
  • prop-2-enyl, but-2-enyl, but-3-enyl, pent-2-enyl, pent-3-enyl, pent-4-enyl, prop-2-ynyl, but-2-ynyl, but-3-ynyl, pent-2-ynyl, pent-3-ynyl or pent-4-ynyl are preferred.
  • the compound represented by Formula I is selected from any one or more of the subformulae of I-1 to I-27; Formulae I-1 to I-27 are specifically:
  • R1 and R2 are independently H, F, or an alkyl or alkoxy group having 1-7 carbon atoms, or an alkenyl, alkenyloxy, alkynyl or alkynyloxy group having 2-7 carbon atoms, one or two CH2 groups in R1 and R2 are substituted by -O-, -C(O)O-, -OC(O)-, -CF2O- , -OCF2- , -CH2O- , -OCH2- , and the heteroatom is not directly bonded; the alkyl or alkoxy group is preferably a straight-chain compound having 1-7 carbon atoms.
  • the compound represented by formula I is selected from one or more of the following subformulae IA-1 to IA-27, wherein formulae IA-1 to IA-27 are specifically:
  • the compounds represented by the formula I are optically active and have chiral centers.
  • the compounds of the formula I can exist in the form of isomers, such as pure enantiomers, diastereomers, E isomers, Z isomers or as a mixture of multiple isomers in any desired ratio, for example, as racemates, E/Z isomer mixtures.
  • the liquid crystal composition further comprises a neutral monomer, and the neutral monomer comprises any one or more of the compounds represented by formulae II1 to II9; formulae II1 to II9 are specifically:
  • R3 and R4 are independently an alkyl or alkoxy group having 1-10 carbon atoms, or an alkenyl, alkenyloxy, alkynyl or alkynyloxy group having 2-10 carbon atoms; the H atoms in said R3 and said R4 may be substituted or polysubstituted by F, Cl, Br or I.
  • the liquid crystal composition further comprises a polar monomer
  • the polar monomer comprises any one or more of the compounds represented by formulae III1 to III5; formulae III1 to III5 are specifically:
  • R5 and R6 are independently an alkyl or alkoxy group having 1-10 carbon atoms, or an alkenyl, alkenyloxy, alkynyl or alkynyloxy group having 2-10 carbon atoms; the H atoms in said R5 and said R6 may be substituted or polysubstituted by F, Cl, Br or I.
  • the weight percentages of the compound included in the formula I, the neutral monomer and the polar monomer are 1%-95%, 1%-85% and 1%-80%, respectively.
  • the weight percentages of the compound included in the formula I, the neutral monomer and the polar monomer are 1%-80%, 5%-60% and 10%-60%, respectively. More preferably, the weight percentages of the compound included in the formula I, the neutral monomer and the polar monomer are 1%-70%, 10%-50% and 10%-45%, respectively.
  • the weight percentages of the compound included in the formula I, the neutral monomer and the polar monomer are 1%-70%, 10%-50% and 10%-45%, respectively.
  • the weight percentages of the compound included in the formula I, the neutral monomer and the polar monomer are 1%-50%, 10%-45% and 10%-40%, respectively. More preferably, the weight percentages of the compound included in the formula I, the neutral monomer and the polar monomer are 1%-40%, 15%-45% and 10%-30%, respectively.
  • liquid crystal composition provided in the present application is explained in detail below with reference to specific embodiments.
  • the liquid crystal composition includes Said Said Said Said Said Said Said Said Said Said The weight percentages are 30%, 8%, 13%, 5%, 8%, 6%, 10%, 6%, 8%, and 6% respectively.
  • ⁇ 1 is the rotational viscosity of the liquid crystal material
  • d is the thickness of the liquid crystal box
  • ⁇ is the dielectric anisotropy of the liquid crystal
  • V th is the threshold voltage
  • K11 is the oblique elastic coefficient
  • K22 is the torsional elastic coefficient
  • K33 is the bending elastic coefficient.
  • the rotational viscosity ⁇ 1 of the liquid crystal composition provided in this embodiment is 96mPa ⁇ s, the dielectric anisotropy ⁇ is -2.9, the oblique elastic coefficient K11 is 14.2, and the bending elastic coefficient K33 is 15.1.
  • the liquid crystal composition provided in the present application has a larger negative dielectric constant ⁇ , a smaller rotational viscosity ⁇ 1, a larger oblique elastic coefficient K11, and a larger bending elastic coefficient K33, and therefore has a faster response time, which helps to improve the response speed of the liquid crystal display panel.
  • the contrast of liquid crystal is related to the dielectric anisotropy of liquid crystal, and negative dielectric anisotropy helps to improve the contrast of liquid crystal.
  • the compound represented by formula I has a large negative polarity.
  • the liquid crystal composition has a large negative dielectric anisotropy.
  • the electrical constant ⁇ helps to improve the contrast of the liquid crystal display panel.
  • liquid crystal composition provided in this embodiment has a higher clearing point Tni (87°C), thus having a wider operating temperature range and a higher maximum operating temperature.
  • the liquid crystal composition has a larger negative dielectric constant ⁇ (-2.9) at a temperature of 25°C and a lower driving voltage.
  • the compound represented by formula I has a larger polarity and a larger dielectric negativity, and its addition helps to shorten the response time of the liquid crystal and improve the contrast of the liquid crystal composition;
  • the compound represented by formula II has the characteristics of dielectric neutrality and low viscosity, and its addition also helps to shorten the response time of the liquid crystal;
  • the compound represented by formula III has dielectric negativity and high Tni characteristics, etc.; the compounds represented by formula I, formula II and formula III in the liquid crystal composition can be appropriately adjusted according to actual needs to adjust the various properties of the liquid crystal composition.
  • the liquid crystal composition provided in this embodiment has a larger dielectric negativity, a smaller rotational viscosity, a larger oblique elastic coefficient, a larger bending elastic coefficient, a larger vertical dielectric constant and a higher clearing point, which is beneficial to improving the response speed and contrast of the liquid crystal display panel, while reducing the driving voltage of the liquid crystal display panel, expanding the operating temperature range of the liquid crystal display panel, and increasing the maximum operating temperature of the liquid crystal display panel.
  • the preparation method of the liquid crystal composition comprises:
  • Step B1 weigh the predetermined weight of the said Said Said Said Said Said Said Said Said Said Said Said Said Said Said Said
  • Step B2 in a melting container, add the above compounds in order from low to high melting points, and heat and stir at 60°C-100°C to fully dissolve and mix the liquid crystal composition;
  • Step B3 cooling the liquid crystal composition to room temperature.
  • the liquid crystal composition includes Said Said Said Said Said Said Said Said Said Said Said Said Said The weight percentages are 18%, 11%, 5%, 11%, 8%, 6%, 7%, 6%, 7%, 7%, and 14% respectively.
  • the liquid crystal composition provided in this embodiment has a larger dielectric negativity, a smaller rotational viscosity, a larger oblique elastic coefficient, a larger bending elastic coefficient, a larger vertical dielectric constant and a higher clearing point, which is beneficial to improving the response speed and contrast of the liquid crystal display panel, while reducing the driving voltage of the liquid crystal display panel, expanding the operating temperature range of the liquid crystal display panel, and increasing the maximum operating temperature of the liquid crystal display panel.
  • the liquid crystal composition includes Said Said Said Said Said Said Said Said Said Said Said Said Said The weight percentages are 35%, 5%, 10%, 8%, 9%, 2%, 4%, 10%, 6%, 7% and 4% respectively.
  • the liquid crystal composition provided in this embodiment has a larger dielectric negativity, a smaller rotational viscosity, a larger oblique elastic coefficient, a larger bending elastic coefficient, a larger vertical dielectric constant and a higher clearing point, which is beneficial to improving the response speed and contrast of the liquid crystal display panel, while reducing the driving voltage of the liquid crystal display panel, expanding the operating temperature range of the liquid crystal display panel, and increasing the maximum operating temperature of the liquid crystal display panel.
  • the liquid crystal composition includes Said Said Said Said Said Said Said Said Said Said Said Said Said Said The weight percentages are 10%, 10%, 10%, 5%, 9%, 9%, 8%, 5%, 5%, 5%, 5%, 5%, 7%, and 7% respectively.
  • the liquid crystal composition provided in this embodiment has a larger dielectric negativity, a smaller rotational viscosity, a larger oblique elastic coefficient, a larger bending elastic coefficient, a larger vertical dielectric constant and a higher clearing point, which is beneficial to improving the response speed and contrast of the liquid crystal display panel, while reducing the driving voltage of the liquid crystal display panel, expanding the operating temperature range of the liquid crystal display panel, and increasing the maximum operating temperature of the liquid crystal display panel.
  • the liquid crystal composition includes Said Said Said Said Said Said Said Said Said Said Said Said Said The mass percentages are 35%, 10%, 5%, 6%, 6%, 7%, 8%, 9%, 6%, and 8% respectively.
  • the liquid crystal composition provided in this embodiment has a larger dielectric negativity, a smaller rotational viscosity, a larger oblique elastic coefficient, a larger bending elastic coefficient, a larger vertical dielectric constant and a higher clearing point, which is beneficial to improving the response speed and contrast of the liquid crystal display panel, while reducing the driving voltage of the liquid crystal display panel, expanding the operating temperature range of the liquid crystal display panel, and increasing the maximum operating temperature of the liquid crystal display panel.
  • the liquid crystal composition includes Said Said Said Said Said Said Said Said Said Said Said Said Said The weight percentages are 35%, 3%, 5%, 3%, 8%, 9%, 8%, 6%, 4%, 6%, 6%, 3%, and 4% respectively.
  • the liquid crystal composition provided in this embodiment has a larger dielectric negativity, a smaller rotational viscosity, a larger oblique elastic coefficient, a larger bending elastic coefficient, a larger vertical dielectric constant and a higher clearing point, which is beneficial to improving the response speed and contrast of the liquid crystal display panel, while reducing the driving voltage of the liquid crystal display panel, expanding the operating temperature range of the liquid crystal display panel, and increasing the maximum operating temperature of the liquid crystal display panel.
  • the present application also provides a liquid crystal display panel, the liquid crystal display panel comprising a first substrate 11, a second substrate 12, and a liquid crystal layer 13, the first substrate 11 and the second substrate 12 are arranged opposite to each other, the liquid crystal layer 13 is arranged between the first substrate 11 and the second substrate 12 In between, the liquid crystal layer 13 includes the liquid crystal composition described in any one of the embodiments of the present application. Since the liquid crystal display panel includes the liquid crystal composition described in any one of the embodiments of the present application, it has the technical characteristics and beneficial effects of the liquid crystal composition described in any one of the embodiments of the present application. Please refer to the above embodiments for details, which will not be repeated here.
  • the liquid crystal display panel provided in the embodiments of the present application can be any one of a vertical alignment (VA) liquid crystal display panel, an electrically controlled birefringence (ECB) liquid crystal display panel, a plasma addressed liquid crystal display panel (PALC), a fringe field switching (FFS) liquid crystal display panel, an in-plane switching (IPS) liquid crystal display panel, etc.
  • VA vertical alignment
  • EBC electrically controlled birefringence
  • PLC plasma addressed liquid crystal display panel
  • FFS fringe field switching
  • IPS in-plane switching
  • the embodiments of the present application provide a liquid crystal composition and a liquid crystal display panel, wherein the liquid crystal composition has a low viscosity and a large clearing point, dielectric negativity, optical anisotropy, oblique elastic coefficient, and bending elastic coefficient, which improves the contrast of the liquid crystal display panel and accelerates the response speed of the liquid crystal display panel.

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Abstract

本申请提供了一种液晶组合物及液晶显示面板，液晶组合物包括一种或多种（I）所代表的化合物；所述液晶组合物具有较低的黏度和较大的清亮点、介电负性、光学各向异性、斜展弹性系数、弯曲弹性系数，提高了所述液晶显示面板的对比度，加快了所述液晶显示面板的响应速度。

Description

液晶组合物及液晶显示面板 技术领域
本申请涉及显示领域，尤其涉及一种液晶组合物及液晶显示面板。
背景技术
随着显示技术的发展，液晶显示器件(Liquid Crystal Display，LCD)等平面显示装置因具有高画质、省电、机身薄及应用范围广等优点，而被广泛的应用于手机、电视、个人数字助理、数字相机、笔记本电脑、台式计算机等各种消费性电子产品，成为显示装置中的主流。
为了满足各种消费性电子产品的要求，IPS显示模式、FFS显示模式、VA显示模式等的显示元件、显示器件所用的液晶材料，要求具有①低的驱动电压：液晶材料具有较大的介电各向异性；②快速响应：液晶材料具有较小的黏度和较大的弹性系数；③耐高温：液晶材料具有较高的清亮点；④高对比度：液晶材料的具有合适的光学各向异性和介电负性。
为呈现更好的显示效果，现有液晶显示面板的对比度、响应时间等性能均需要进一步提高。
技术问题
本申请提供一种液晶组合物及液晶显示面板，以提高液晶显示面板的对比度、响应时间等性能。
技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种液晶组合物，所述液晶组合物包括一种或多种式Ⅰ所代表的化合物：
其中，m和n彼此独立地为0、1、2或3；
L1、L2彼此独立地为H、F、Cl、Br、I、CN，或具有1-15个碳原子的烷基；
Z1、Z2彼此独立地为单键、-O-、-S-、-SO2-、-CO-、-C(O)O-、-OC(O)-、-OC(O)O-、-CF2O-、-OCF2-、-CH2CH2-、-CF2CF2-、-CF2CH2-、-CH2CF2-、-CHF-CHF-、-CH2O-、-OCH2-、-CF＝CH-、-CH＝CF-、-CF＝CF-、-CH＝CH-或-C≡C-；所述Z1、所述Z2中的H被F、Cl、Br或I零取代或一取代或多取代；
每一个和每一个彼此独立地为 所述和所述中的H被F、Cl或Br零取代或一取代或多取代；
R1和R2彼此独立地为H、F、Cl、Br、I、CN、SCN、NCS、SF5，或具有1-15个碳原子的烷基或烷氧基，或具有2-15个碳原子的烯基、烯氧基、炔基或炔氧基；所述R1的末端基团、所述R2的末端基团被H、CN或CF3零取代或单取代，所述R1、所述R2中CH2基团被-O-、-S-、-SO2-、-CO-、-C(O)O-、-OC(O)-、-OC(O)O-、-CF2O-、-OCF2-、-CH2CH2-、-CF2CF2-、-CF2CH2-、-CH2CF2-、-CHF-CHF-、-CH2O-、-OCH2-、-CF＝CH-、-CH＝CF-、-CF＝CF-、-CH＝CH-或-C≡C-零取代或一取代或或取代，并使杂原子不直接键接。
可选地，在本申请的一些实施例中，所述L1、所述L2彼此独立地为H、F。
可选地，在本申请的一些实施例中，所述L1和所述L2均为F。
可选地，在本申请的一些实施例中，所述Z1、所述Z2彼此独立地为单键、-O-、-CF2O-、-OCF2-、-CH2O-、-OCH2-。
可选地，在本申请的一些实施例中，所述R1和所述R2彼此独立地为H或F。
可选地，在本申请的一些实施例中，所述式I所代表的化合物选自以下Ⅰ-1至Ⅰ-27的子式所代表的化合物中的一种或多种；子式Ⅰ-1至Ⅰ-27具体为：

其中，R1和R2彼此独立地为H、F，或具有1-7个碳原子的烷基或烷氧基，或具有2-7个碳原子的烯基、烯氧基、炔基或炔氧基，所述R1、所述R2中的一个或两个CH2基团被-O-、-C(O)O-、-OC(O)-、-CF2O-、-OCF2-、-CH2O-、-OCH2-取代并使杂原子不直接键接；所述烷基或烷氧基优选为具有1-7个碳原子的直链化合物。
可选地，在本申请的一些实施例中，所述式Ⅰ所代表的化合物选自以下ⅠA-1至ⅠA-27的子式中的一种或多种，式ⅠA-1至ⅠA-27具体为：
可选地，在本申请的一些实施例中，所述液晶组合物还包括中性单体，所 述中性单体包括式Ⅱ1至Ⅱ9所代表的化合物中的任意一种或多种；式Ⅱ1至Ⅱ9具体为：
其中，R3和R4彼此独立地为具有1-10个碳原子的烷基或烷氧基，或具有2-10个碳原子的烯基、烯氧基、炔基或炔氧基；所述R3和所述R4中的H原子被F、Cl、Br或I零取代或一取代或多取代。
可选地，在本申请的一些实施例中，所述液晶组合物还包括极性单体，所述极性单体包括式Ⅲ1至Ⅲ5所代表的化合物中的任意一种或多种；式Ⅲ1至Ⅲ5具体为：
其中，R5和R6彼此独立地为具有1-10个碳原子的烷基或烷氧基，或具有2-10个碳原子的烯基、烯氧基、炔基或炔氧基；所述R5和所述R6中的H原子被F、Cl、Br或I零取代或一取代或多取代。
可选地，在本申请的一些实施例中，所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述的重量百分比分别为30％、8％、13％、5％、8％、6％、10％、6％、8％、6％；或者
所述液晶组合物包括 所述所述 所述所述所述所述所述所述所述所述所述的重量百分比分别为18％、11％、5％、11％、8％、6％、7％、6％、7％、7％、14％；或者，
所述液晶组合物包括 所述所述所述所述所述所述所述 所述所述所述所述的重量百分比分别为35％、5％、10％、8％、9％、2％、4％、10％、6％、7％、4％；或者，
所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述所述所述 所述的重量百分比分别为10％、10％、10％、5％、9％、9％、8％、5％、5％、5％、5％、5％、7％、7％；或者，
所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述的质量百分比分别为35％、10％、5％、6％、6％、7％、8％、9％、6％、8％；或者，
所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为35％、3％、5％、3％、8％、9％、8％、6％、4％、6％、6％、3％、4％。
相应的，本申请还提供一种液晶显示面板，所述液晶显示面板包括第一基板、第二基板、以及液晶层，所述第一基板和所述第二基板相对设置，所述液晶层设于所述第一基板和所述第二基板之间，所述液晶层包括本申请任意一项实施例所述的液晶组合物。
有益效果
本申请提供了一种液晶组合物及液晶显示面板，所述液晶组合物具有较低的黏度和较大的清亮点、介电负性、光学各向异性、斜展弹性系数和弯曲弹性系数，提高了所述液晶显示面板的对比度，加快了所述液晶显示面板的响应速度。
附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例提供的液晶显示面板的结构示意图。
本发明的实施方式
下面将结合本申请的具体实施方案，对本申请实施方案和/或实施例中的技术方案进行清楚、完整的描述，显而易见的，下面所描述的实施方案和/或实施例仅仅是本申请一部分实施方案和/或实施例，而不是全部的实施方案和/或实施例。基于本申请中的实施方案和/或实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施方案和/或实施例，都属于本申请保护范围。
本申请所提到的方向用语，例如[上]、[下]、[左]、[右]、[前]、[后]、[内]、[外]、[侧]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明和理解本申请，而非用以限制本申请。术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或是暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。
本申请实施例提供一种液晶组合物及包括该液晶组合物的液晶显示面板，以提高液晶显示面板的对比度和响应时间等性能。
在一种实施例中，本申请提供的液晶组合物包括一种或多种式Ⅰ所代表的化合物：
其中，m和n彼此独立地为0、1、2或3；优选所述m和所述n彼此独立地为0、1或2；特别优选所述m和所述n彼此独立地为0或1。
L1、L2彼此独立地为H、F、Cl、Br、I、CN，或具有1-15个碳原子的烷基；优选所述L1、所述L2彼此独立地为H、F；特别优选所述L1和所述L2均为F。
Z1、Z2彼此独立地为单键、-O-、-S-、-SO2-、-CO-、-C(O)O-、-OC(O)-、-OC(O)O-、-CF2O-、-OCF2-、-CH2CH2-、-CF2CF2-、-CF2CH2-、-CH2CF2-、-CHF-CHF-、-CH2O-、-OCH2-、-CF＝CH-、-CH＝CF-、-CF＝CF-、-CH＝CH-或-C≡C-；优选地，所述Z1、所述Z2彼此独立地为单键、-O-、-C(O)O-、-OC(O)-、-CF2O-、-OCF2-、-CH2CH2-、-CH2O-、-OCH2-、-CH＝CH-或-C≡C-；特别优选地，所述Z1、所述Z2彼此独立地为单键、-O-、-CF2O-、-OCF2-、-CH2O-、-OCH2-。所述Z1、所述Z2中的一个或多个H可以被F、Cl、Br、I取代。
每一个和每一个彼此独立地为 优选每一个所述和每一个所述各彼此独立地为 特别优选每一个所述和每一个所述各彼此独立地为 所述和所述中的一个或多个H可以被F、Cl、Br取代。
R1和R2彼此独立地为H、F、Cl、Br、I、CN、SCN、NCS、SF5；优选所述R1和所述R2彼此独立地为H或F。或者，所述R1和所述R2彼此独立地为具有1-15个碳原子的烷基或烷氧基，所述烷基、所述烷氧基可以是直链基团，也可以是支链基团，所述直链基团为直链的脂肪烃基团，所述支链基团为支链 的脂肪烃基团；优选所述R1和所述R2彼此独立地为具有1-7个碳原子的直链基团；特别优选所述R1和所述R2彼此独立地为甲基、甲氧基、乙基、乙氧基、丙基、丙氧基、丁基、丁氧基、戊基、戊氧基、己基或己氧基。或者，所述R1和所述R2彼此独立地为具有2-15个碳原子的烯基、烯氧基、炔基或炔氧基，所述烯基、所述烯氧基、所述炔基、所述炔氧基可以是直链基团，也可以是支链基团，并且所述烯基、所述烯氧基、所述炔基、所述炔氧基具有至少一个碳碳双键或碳碳三键；优选所述R1和所述R2彼此独立地为具有2-7个碳原子的烯基或炔基，特别优选所述R1和所述R2彼此独立地为乙烯基、丙-1-烯基、丙-2-烯基、丁-1-烯基、丁-2-烯基、丁-3-烯基、戊-1-烯基、戊-2-烯基、戊-3-烯基、戊-4-烯基、己-1-烯基、己-2-烯基、己-3-烯基、己-4-烯基、己-5-烯基、庚-1-烯基、庚-2-烯基、庚-3-烯基、庚-4-烯基、庚-5-烯基、庚-6-烯基、乙炔基、丙-1-炔基、丙-2-炔基、丁-1-炔基、丁-2-炔基、丁-3-炔基、戊-1-炔基、戊-2-炔基、戊-3-炔基、戊-4-炔基、己-1-炔基、己-2-炔基、己-3-炔基、己-4-炔基、己-5-炔基、庚-1-炔基、庚-2-炔基、庚-3-炔基、庚-4-炔基、庚-5-炔基或庚-6-炔基，且烯基可以是E和Z型异构体。烯基和炔基中，优选丙-2-烯基、丁-2-烯基、丁-3-烯基、戊-2-烯基、戊-3-烯基、戊-4-烯基、丙-2-炔基、丁-2-炔基、丁-3-炔基、戊-2-炔基、戊-3-炔基或戊-4-炔基。
所述R1的末端基团、所述R2的末端基团可被H、CN或CF3单取代；所述R1、所述R2中一个或多个CH2基团可被-O-、-S-、-SO2-、-CO-、-C(O)O-、-OC(O)-、-OC(O)O-、-CF2O-、-OCF2-、-CH2CH2-、-CF2CF2-、-CF2CH2-、-CH2CF2-、-CHF-CHF-、-CH2O-、-OCH2-、-CF＝CH-、-CH＝CF-、-CF＝CF-、-CH＝CH-或-C≡C-取代并使杂原子不直接键接，优选所述R1中的一个或多个CH2基团可被-O-、-C(O)O-、-OC(O)-、-CF2O-、-OCF2-、-CH2CH2-、-CH2O-、-OCH2-、-CH＝CH-或-C≡C-取代并使杂原子不直接键接，所述R2中的一个或多个CH2基团可被-O-、-C(O)O-、-OC(O)-、-CF2O-、-OCF2-、-CH2CH2-、-CH2O-、-OCH2-、-CH＝CH-或-C≡C-取代并使杂原子不直接键接。
在一种实施例中，所述式Ⅰ所代表的化合物选自Ⅰ-1至Ⅰ-27的子式中的任意一种或多种；式Ⅰ-1至Ⅰ-27具体为：
其中，R1和R2彼此独立地为H、F，或具有1-7个碳原子的烷基或烷氧基，或具有2-7个碳原子的烯基、烯氧基、炔基或炔氧基，所述R1、所述R2中的一个或两个CH2基团被-O-、-C(O)O-、-OC(O)-、-CF2O-、-OCF2-、-CH2O-、-OCH2-取代并使杂原子不直接键接；所述烷基或烷氧基优选为具有1-7个碳原子的直链化合物。
优选地，所述式Ⅰ所代表的化合物选自以下ⅠA-1至ⅠA-27的子式中的一种或多种，式ⅠA-1至ⅠA-27具体为：
在本申请的实施例中，所述式Ⅰ所代表的化合物为光学活性，具有手性中心。所述式Ⅰ的化合物能以异构体的形式存在，如纯对映体、非对映体、E异构体、Z异构体或作为以任何所需比例的多个异构体的混合物存在，例如作为外消旋体、E/Z异构体混合物。
在一种实施例中，当所述式Ⅰ所代表的化合物包括通过以下合成路径合成 得到：
在一种实施例中，所述液晶组合物还包括中性单体，所述中性单体包括式Ⅱ1至Ⅱ9所代表的化合物中的任意一种或多种；式Ⅱ1至Ⅱ9具体为：
其中，R3和R4彼此独立地为具有1-10个碳原子的烷基或烷氧基，或具有2-10个碳原子的烯基、烯氧基、炔基或炔氧基；所述R3和所述R4中的H原子可被F、Cl、Br、I一取代或多取代。
在一种实施例中，所述液晶组合物还包括极性单体，所述极性单体包括式Ⅲ1至Ⅲ5所代表的化合物中的任意一种或多种；式Ⅲ1至Ⅲ5具体为：
其中，R5和R6彼此独立地为具有1-10个碳原子的烷基或烷氧基，或具有2-10个碳原子的烯基、烯氧基、炔基或炔氧基；所述R5和所述R6中的H原子可被F、Cl、Br、I一取代或多取代。
在一种实施例中，所述式Ⅰ包括的化合物、所述中性单体和所述极性单体的重量百分比分别为1％-95％、1％-85％和1％-80％。优选地，所述式Ⅰ包括的化合物、所述中性单体和所述极性单体的重量百分比分别为1％-80％、5％-60％和10％-60％。更加优选地，所述式Ⅰ包括的化合物、所述中性单体和所述极性单体的重量百分比分别为1％-70％、10％-50％和10％-45％。
在另一种实施例中，所述式Ⅰ包括的化合物、所述中性单体和所述极性单体的重量百分比分别为1％-70％、10％-50％和10％-45％。优选地，所述式Ⅰ包括的化合物、所述中性单体和所述极性单体的重量百分比分别为1％-50％、10％-45％和10％-40％。更加优选地，所述式Ⅰ包括的化合物、所述中性单体和所述极性单体的重量百分比分别为1％-40％、15％-45％和10％-30％。
下面，以具体的实施例对本申请提供的液晶组合物进行详细的阐释说明。
实施例一
表1
请参照表1，表1示出了本实施例提供的液晶组合物的各个组分的化合物的配比、以及所述液晶组合物的性能参数。所述液晶组合物包括 所述所述 所述所述所述所述所述所述所述所述的重量百分比分别为30％、8％、13％、5％、8％、6％、10％、6％、8％、6％。
液晶的响应时间其中，γ1为液晶材料的旋转粘度，d为液晶盒的厚度，Δε为液晶的介电各向异性，Vth为阈值电压，K11为斜展弹性系数，K22为扭曲弹性系数，K33为弯曲弹性系数。由上述公式可知，液晶的响应时间与旋转黏度γ1正相关，与介电各向异性Δε、斜展弹性系数K11、弯曲弹性系数K33负相关。本施例提供的液晶组合物的旋转粘度γ1为96mPa·s，介电各向异性Δε为-2.9，斜展弹性系数K11为14.2，弯曲弹性系数K33为15.1。本申请提供的液晶组合物具有较大的负性介电常数Δε、较小的旋转粘度γ1、较大的斜展弹性系数K11和较大的弯曲弹性系数K33，因此，具有较快的响应时间，有助于提高液晶显示面板的响应速度。
液晶的对比度与液晶的介电各向异性相关，负的介电各向异性有助于提高液晶的对比度。式Ⅰ所代表的化合物具有较大的负极性，本申请通过在所述液晶组合物中加入式Ⅰ所代表的化合物，使得所述液晶组合物具有较大的负性介 电常数Δε，有助于提高液晶显示面板的对比度。
另外，本实施例提供的液晶组合物具有较高的清亮点Tni(87℃)，因此具有较宽的工作温度范围和较高的最高工作温度。所述液晶组合物具有在的25℃温度下较大的负性介电常数Δε(-2.9)，同时具有较低的驱动电压。
在本实施例提供的液晶组合物中，式Ⅰ所代表的化合物具有较大的极性和较大的介电负性，其加入有助于缩短液晶的响应时间，提高液晶组合物的对比度；式Ⅱ所代表的化合物具有介电中性、低粘度的特性，其加入同样有助于缩短液晶的响应时间；式Ⅲ所代表的化合物具有介电负性，及高Tni特性等；可根据实际需要对所述液晶组合物中式Ⅰ、式Ⅱ和式Ⅲ所代表的化合物进行适当的调整，以调节所述液晶组合物的各项性能。
综上所述，本实施例提供的液晶组合物具有较大的介电负性、较小的旋转粘度、较大的斜展弹性系数、较大的弯曲弹性系数、较大的垂直介电常数和较高的清亮点，有利于提高液晶显示面板的响应速度和对比度，同时降低液晶显示面板的驱动电压，扩大液晶显示面板的工作温度范围，提高液晶显示面板的最高工作温度。
所述液晶组合物的制备方法包括：
步骤B1、按重量百分比30％、8％、13％、5％、8％、6％、10％、6％、8％、6％分别称取预定重量的所述所述所述所述所述所述所述所述所述所述
步骤B2、在熔融容器中，按熔点由低到高的顺序依次加入上述化合物，并在60℃-100℃温度下加热搅拌，使所述液晶组合物充分溶解混合；
步骤B3、将所述液晶组合物冷却至室温。
实施例二
表2
请参照表2，表2示出了本实施例提供的液晶组合物的各个组分的化合物的配比、以及所述液晶组合物的性能参数。所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为18％、11％、5％、11％、8％、6％、7％、6％、7％、7％、14％。
同样的，本实施例提供的液晶组合物具有较大的介电负性、较小的旋转粘度、较大的斜展弹性系数、较大的弯曲弹性系数、较大的垂直介电常数和较高的清亮点，有利于提高液晶显示面板的响应速度和对比度，同时降低液晶显示面板的驱动电压，扩大液晶显示面板的工作温度范围，提高液晶显示面板的最高工作温度。
实施例三
表3
请参照表3，表3示出了本实施例提供的液晶组合物的各个组分的化合物的配比、以及所述液晶组合物的性能参数。所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为35％、5％、10％、8％、9％、2％、4％、10％、6％、7％、4％。
同样的，本实施例提供的液晶组合物具有较大的介电负性、较小的旋转粘度、较大的斜展弹性系数、较大的弯曲弹性系数、较大的垂直介电常数和较高的清亮点，有利于提高液晶显示面板的响应速度和对比度，同时降低液晶显示面板的驱动电压，扩大液晶显示面板的工作温度范围，提高液晶显示面板的最高工作温度。
实施例四
表4
请参照表4，表4示出了本实施例提供的液晶组合物的各个组分的化合物的配比、以及所述液晶组合物的性能参数。所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为10％、10％、10％、5％、9％、9％、8％、5％、5％、5％、5％、5％、7％、7％。
同样的，本实施例提供的液晶组合物具有较大的介电负性、较小的旋转粘度、较大的斜展弹性系数、较大的弯曲弹性系数、较大的垂直介电常数和较高的清亮点，有利于提高液晶显示面板的响应速度和对比度，同时降低液晶显示面板的驱动电压，扩大液晶显示面板的工作温度范围，提高液晶显示面板的最高工作温度。
实施例五
表5
请参照表5，表5示出了本实施例提供的液晶组合物的各个组分的化合物的配比、以及所述液晶组合物的性能参数。所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述的质量百分比分别为35％、10％、5％、6％、6％、7％、8％、9％、6％、8％。
同样的，本实施例提供的液晶组合物具有较大的介电负性、较小的旋转粘度、较大的斜展弹性系数、较大的弯曲弹性系数、较大的垂直介电常数和较高的清亮点，有利于提高液晶显示面板的响应速度和对比度，同时降低液晶显示面板的驱动电压，扩大液晶显示面板的工作温度范围，提高液晶显示面板的最高工作温度。
实施例六
表6
请参照表6，表6示出了本实施例提供的液晶组合物的各个组分的化合物的配比、以及所述液晶组合物的性能参数。所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为35％、3％、5％、3％、8％、9％、8％、6％、4％、6％、6％、3％、4％。
同样的，本实施例提供的液晶组合物具有较大的介电负性、较小的旋转粘度、较大的斜展弹性系数、较大的弯曲弹性系数、较大的垂直介电常数和较高的清亮点，有利于提高液晶显示面板的响应速度和对比度，同时降低液晶显示面板的驱动电压，扩大液晶显示面板的工作温度范围，提高液晶显示面板的最高工作温度。
请参照图1，本申请还相应地提供一种液晶显示面板，所述液晶显示面板包括第一基板11、第二基板12、以及液晶层13，所述第一基板11和所述第二基板12相对设置，所述液晶层13设于所述第一基板11和所述第二基板12 之间，所述液晶层13包括本申请任意一项实施例所述的液晶组合物。由于所述液晶显示面板包括本申请任意一项实施例所述地液晶组合物，因此具备本申请任意一项实施例所述的液晶组合物的技术特征和有益效果，具体请参照上述实施例，在此不再赘述。本申请实施例提供的液晶显示面板可以是垂直配向型(Vertical alignment，简称VA)液晶显示面板、双折射控制型(Electrically Controlled Birefringence，简称ECB)液晶显示面板、等离子体寻址液晶显示面板(Plasma Addressed Liquid Crystal，简称PALC)、边缘场开关型(Fringe Field Switching，简称FFS)液晶显示面板、平面转换型(In-Plane Switching，IPS)液晶显示面板等中的任意一种。
综上所述，本申请实施例提供了一种液晶组合物及液晶显示面板，所述液晶组合物具有较低的黏度和较大的清亮点、介电负性、光学各向异性、斜展弹性系数、弯曲弹性系数，提高了所述液晶显示面板的对比度，加快了所述液晶显示面板的响应速度。
以上对本申请实施例所提供的液晶组合物及液晶显示面板进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种液晶组合物，其包括一种或多种式Ⅰ所代表的化合物：
    其中，m和n彼此独立地为0、1、2或3；
    L1、L2彼此独立地为H、F、Cl、Br、I、CN，或具有1-15个碳原子的烷基；
    Z1、Z2彼此独立地为单键、-O-、-S-、-SO2-、-CO-、-C(O)O-、-OC(O)-、-OC(O)O-、-CF2O-、-OCF2-、-CH2CH2-、-CF2CF2-、-CF2CH2-、-CH2CF2-、-CHF-CHF-、-CH2O-、-OCH2-、-CF＝CH-、-CH＝CF-、-CF＝CF-、-CH＝CH-或-C≡C-；所述Z1、所述Z2中的H被F、Cl、Br或I零取代或一取代或多取代；
    每一个和每一个彼此独立地为 所述和所述中的H被F、Cl或Br零取代或一取代或多取代；
    R1和R2彼此独立地为H、F、Cl、Br、I、CN、SCN、NCS、SF5，或具有1-15个碳原子的烷基或烷氧基，或具有2-15个碳原子的烯基、烯氧基、炔基或炔氧基；所述R1的末端基团、所述R2的末端基团被H、CN或CF3零取代或单取代，所述R1、所述R2中CH2基团被-O-、-S-、-SO2-、-CO-、-C(O)O-、-OC(O)-、-OC(O)O-、-CF2O-、-OCF2-、-CH2CH2-、-CF2CF2-、-CF2CH2-、-CH2CF2-、-CHF-CHF-、-CH2O-、-OCH2-、-CF＝CH-、-CH＝CF-、-CF＝CF-、-CH＝CH-或-C≡C-零取代或一取代或多取代，并使杂原子不直接键接。
  2. 如权利要求1所述的液晶组合物，其中，所述L1、所述L2彼此独立地为H或F。
  3. 如权利要求1所述的液晶组合物，其中，所述L1和所述L2均为F。
  4. 如权利要求1所述的液晶组合物，其中，所述Z1、所述Z2彼此独立地为单键、-O-、-CF2O-、-OCF2-、-CH2O-、-OCH2-。
  5. 如权利要求1所述的液晶组合物，其中，所述R1和所述R2彼此独立地为H或F。
  6. 如权利要求1所述的液晶组合物，其中，所述式I所代表的化合物选自以下Ⅰ-1至Ⅰ-27的子式所代表的化合物中的一种或多种；子式Ⅰ-1至Ⅰ-27具体为：

    其中，R1和R2彼此独立地为H、F，或具有1-7个碳原子的烷基或烷氧基，或具有2-7个碳原子的烯基、烯氧基、炔基或炔氧基，所述R1、所述R2中的一个或两个CH2基团被-O-、-C(O)O-、-OC(O)-、-CF2O-、-OCF2-、-CH2O-、-OCH2-取代并使杂原子不直接键接；所述烷基或烷氧基优选为具有1-7个碳原子的直链化合物。
  7. 如权利要求6所述的液晶组合物，其中，所述式Ⅰ所代表的化合物选自以下ⅠA-1至ⅠA-27的子式中的一种或多种，式ⅠA-1至ⅠA-27具体为：
  8. 如权利要求1所述的液晶组合物，其中，所述液晶组合物还包括中性单体，所述中性单体包括式Ⅱ1至Ⅱ9所代表的化合物中的任意一种或多种；式Ⅱ1至Ⅱ9具体为：
    其中，R3和R4彼此独立地为具有1-10个碳原子的烷基或烷氧基，或具有2-10个碳原子的烯基、烯氧基、炔基或炔氧基；所述R3和所述R4中的H原子被F、Cl、Br或I零取代或一取代或多取代。
  9. 如权利要求1所述的液晶组合物，其中，所述液晶组合物还包括极性单体，所述极性单体包括式Ⅲ1至Ⅲ5所代表的化合物中的任意一种或多种；式Ⅲ1至Ⅲ5具体为：
    其中，R5和R6彼此独立地为具有1-10个碳原子的烷基或烷氧基，或具有2-10个碳原子的烯基、烯氧基、炔基或炔氧基；所述R5和所述R6中的H原子被F、Cl、Br或I零取代或一取代或多取代。
  10. 如权利要求1所述的液晶组合物，其中，所述液晶组合物包括 所述所述所述所述所述所述 所述所述所述所述的重量百分比分别为30％、8％、13％、5％、8％、6％、10％、6％、8％、6％；或者
    所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为18％、11％、5％、11％、8％、6％、7％、6％、7％、7％、14％；或者，
    所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为35％、5％、10％、8％、9％、2％、4％、10％、6％、7％、4％；或者，
    所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为10％、10％、10％、5％、9％、9％、8％、5％、5％、5％、5％、5％、7％、7％；或者，
    所述液晶组合物包括 所述所述 所述所述所述所述所述所述所述所述的质量百分比分别为35％、10％、5％、6％、6％、7％、8％、9％、6％、8％；或者，
    所述液晶组合物包括 所述所述所述所述所述所述所述所述所述 所述所述所述所述的重量百分比分别为35％、3％、5％、3％、8％、9％、8％、6％、4％、6％、6％、3％、4％。
  11. 一种液晶显示面板，其包括第一基板、第二基板、以及液晶层，所述第一基板和所述第二基板相对设置，所述液晶层设于所述第一基板和所述第二基板之间，所述液晶层包括液晶组合物，所述液晶组合物包括一种或多种式Ⅰ所代表的化合物：
    其中，m和n彼此独立地为0、1、2或3；
    L1、L2彼此独立地为H、F、Cl、Br、I、CN，或具有1-15个碳原子的烷基；
    Z1、Z2彼此独立地为单键、-O-、-S-、-SO2-、-CO-、-C(O)O-、-OC(O)-、-OC(O)O-、-CF2O-、-OCF2-、-CH2CH2-、-CF2CF2-、-CF2CH2-、-CH2CF2-、-CHF-CHF-、-CH2O-、-OCH2-、-CF＝CH-、-CH＝CF-、-CF＝CF-、-CH＝CH-或-C≡C-；所述Z1、所述Z2中的H被F、Cl、Br或I零取代或一取代或多取代；
    每一个和每一个彼此独立地为 或所述和所述中的H被F、Cl或Br零取代或一取代或多取 代；
    R1和R2彼此独立地为H、F、Cl、Br、I、CN、SCN、NCS、SF5，或具有1-15个碳原子的烷基或烷氧基，或具有2-15个碳原子的烯基、烯氧基、炔基或炔氧基；所述R1的末端基团、所述R2的末端基团被H、CN或CF3零取代或单取代，所述R1、所述R2中CH2基团被-O-、-S-、-SO2-、-CO-、-C(O)O-、-OC(O)-、-OC(O)O-、-CF2O-、-OCF2-、-CH2CH2-、-CF2CF2-、-CF2CH2-、-CH2CF2-、-CHF-CHF-、-CH2O-、-OCH2-、-CF＝CH-、-CH＝CF-、-CF＝CF-、-CH＝CH-或-C≡C-零取代或一取代或多取代，并使杂原子不直接键接。
  12. 如权利要求11所述的液晶显示面板，其中，所述L1、所述L2彼此独立地为H或F。
  13. 如权利要求11所述的液晶显示面板，其中，所述L1和所述L2均为F。
  14. 如权利要求11所述的液晶显示面板，其中，所述Z1、所述Z2彼此独立地为单键、-O-、-CF2O-、-OCF2-、-CH2O-、-OCH2-。
  15. 如权利要求11所述的液晶显示面板，其中，所述R1和所述R2彼此独立地为H或F。
  16. 如权利要求11所述的液晶显示面板，其中，所述式I所代表的化合物选自以下Ⅰ-1至Ⅰ-27的子式所代表的化合物中的一种或多种；子式Ⅰ-1至Ⅰ-27具体为：
    其中，R1和R2彼此独立地为H、F，或具有1-7个碳原子的烷基或烷氧基，或具有2-7个碳原子的烯基、烯氧基、炔基或炔氧基，所述R1、所述R2中的一个或两个CH2基团被-O-、-C(O)O-、-OC(O)-、-CF2O-、-OCF2-、-CH2O-、-OCH2-取代并使杂原子不直接键接；所述烷基或烷氧基优选为具有1-7个碳原子的直链化合物。
  17. 如权利要求16所述的液晶显示面板，其中，所述式Ⅰ所代表的化合物选自以下ⅠA-1至ⅠA-27的子式中的一种或多种，式ⅠA-1至ⅠA-27具体为：
  18. 如权利要求11所述的液晶显示面板，其中，所述液晶组合物还包括中性单体，所述中性单体包括式Ⅱ1至Ⅱ9所代表的化合物中的任意一种或多种；式Ⅱ1至Ⅱ9具体为：
    其中，R3和R4彼此独立地为具有1-10个碳原子的烷基或烷氧基，或具有2-10个碳原子的烯基、烯氧基、炔基或炔氧基；所述R3和所述R4中的H原子被F、Cl、Br或I零取代或一取代或多取代。
  19. 如权利要求11所述的液晶显示面板，其中，所述液晶组合物还包括极性单体，所述极性单体包括式Ⅲ1至Ⅲ5所代表的化合物中的任意一种或多种；式Ⅲ1至Ⅲ5具体为：
    其中，R5和R6彼此独立地为具有1-10个碳原子的烷基或烷氧基，或具有2-10个碳原子的烯基、烯氧基、炔基或炔氧基；所述R5和所述R6中的H原子被F、Cl、Br或I零取代或一取代或多取代。
  20. 如权利要求11所述的液晶显示面板，其中，所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述的重量百分比分别为30％、8％、13％、5％、8％、6％、10％、6％、8％、6％；或者
    所述液晶组合物包括 所述所述所述所述所述所述 所述所述所述所述所述的重量百分比分别为18％、11％、5％、11％、8％、6％、7％、6％、7％、7％、14％；或者，
    所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述的重量百分比分 别为35％、5％、10％、8％、9％、2％、4％、10％、6％、7％、4％；或者，
    所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为10％、10％、10％、5％、9％、9％、8％、5％、5％、5％、5％、5％、7％、7％；或者，
    所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述的质量百分比分别为35％、10％、5％、6％、6％、7％、8％、9％、6％、8％；或者，
    所述液晶组合物包括 所述所述所述所述所述所述所述所述所述所述所述所述所述的重量百分比分别为35％、3％、5％、3％、8％、9％、8％、6％、4％、6％、6％、3％、4％。
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