WO2018120325A1 - 垂直取向剂材料 - Google Patents

垂直取向剂材料 Download PDF

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WO2018120325A1
WO2018120325A1 PCT/CN2017/071284 CN2017071284W WO2018120325A1 WO 2018120325 A1 WO2018120325 A1 WO 2018120325A1 CN 2017071284 W CN2017071284 W CN 2017071284W WO 2018120325 A1 WO2018120325 A1 WO 2018120325A1
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group
vertical alignment
material according
agent material
alignment agent
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French (fr)
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兰松
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US15/329,375 priority Critical patent/US10899697B2/en
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/612—Esters of carboxylic acids having a carboxyl group bound to an acyclic carbon atom and having a six-membered aromatic ring in the acid moiety
    • C07C69/618—Esters of carboxylic acids having a carboxyl group bound to an acyclic carbon atom and having a six-membered aromatic ring in the acid moiety having unsaturation outside the six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
    • C07C69/593—Dicarboxylic acid esters having only one carbon-to-carbon double bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/62—Halogen-containing esters
    • C07C69/65—Halogen-containing esters of unsaturated acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/73—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids
    • C07C69/732—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids of unsaturated hydroxy carboxylic acids
    • 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
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/56—Aligning agents
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202—LCD, i.e. liquid crystal displays
    • 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
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/02—Alignment layer characterised by chemical composition
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133742—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homeotropic alignment

Definitions

  • the invention belongs to the field of liquid crystal alignment materials and relates to a vertical alignment agent material.
  • a film material On a liquid crystal display (LCD) CF (color filter) substrate and a TFT (Thin Film Transistor) substrate, there is a film material, the main function of which is to arrange liquid crystal molecules in a certain direction. It is called an alignment film and is usually a polyimide (PI) material.
  • PI polyimide
  • Such phase-matching membranes are mainly classified into a friction-aligned PI material and a photo-aligned PI material, but both alignment materials have disadvantages.
  • the friction-aligned type has problems such as dust particles, static electricity, and brush marks, which lowers the process yield.
  • the optical alignment material can avoid these problems, the heat resistance and aging resistance are poor due to limited material properties.
  • the ability to anchor LC (Liquid Crystal) molecules is also weak, which affects the quality of the panel.
  • the PI material itself has high polarity and high water absorption, storage and transportation are prone to deterioration, resulting in uneven alignment, and PI material is expensive, in TFT-LCD (Thin Film Transistor Liquid Crystal Display). The process of film formation is also complicated, resulting in an increase in panel cost.
  • the PI solution also contains a large amount of N-methylpyrrolidone (NMP) solvent, so the process of the alignment layer is high in energy consumption, extremely environmentally friendly, and easily harmful to the human body.
  • NMP N-methylpyrrolidone
  • liquid crystal molecules in the TFT-LCD if the liquid crystal molecules can be aligned even in the case where the PI film is omitted, the cost of the production panel can be greatly reduced.
  • liquid crystal molecules in the TFT-LCD without the PI film will directly contact the inorganic material on the panel. Therefore, it is necessary to design a self-aligning agent material with a polymeric group for the purpose of controlling the orientation of liquid crystal molecules.
  • It is an object of the present invention to provide a vertical alignment agent material comprising a structure comprising a polar anchor group, a polymerizable group, an intermediate rigid group and a tail group flexible group, anchored.
  • the main role of the group is to utilize The polar group of itself is anchored on the surface of the non-polar substrate by physical action; the polymerizable group is mainly UV (ultraviolet light) polymerization to form a dense polymer film, the main role of the intermediate group and the terminal group. It is similar to the action of PI branches to vertically align liquid crystal molecules in a steric hindrance manner.
  • a self-orienting material is provided, the molecular structure of which is as shown in Formula I:
  • Q is a polar anchor group
  • L1 is a rigid group
  • P is a polymerizable group
  • L2 is a linking group
  • R is a terminally flexible group
  • n is 1-3.
  • the polar anchoring group Q is selected from the group consisting of an amine group, -OH, -COOH, -SH, -CN, -Si(CH 3 ) 3 , -Si(OCH 3 ) 3 or - Any of SiCl 3 .
  • the polymerizable group P means a polymerizable group under ultraviolet light. It is preferably selected from any one selected from the group consisting of a methacrylate group, an acrylate group, a vinyl group, and a vinyloxy group.
  • the halogen is F or Cl;
  • the L1 is N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoe
  • y is selected from an integer between 0 and 5, preferably an integer between 0 and 3;
  • any one which is the same or different from each other is a substituted or unsubstituted C 6 -C 14 arylene group or a C 4 -C 6 cycloalkylene group, and the arylene group includes a phenylene group and a fused ring aryl group.
  • a biphenylene type polycyclic aryl group preferably, the number of C on the cycloalkylene group is 4 to 6; preferably, A is a substituted or unsubstituted biphenylene type polycyclic aryl group;
  • the substituent group of A is selected from one or more of a halogen, a cyano group, a C 1 -C 8 linear or branched alkyl group, wherein, optionally, a non-adjacent one of the alkyl groups Or a plurality of carbon atoms are replaced by oxygen or sulfur;
  • the R is selected from a C 2 -C 10 alkyl group substituted or unsubstituted with a halogen, wherein, optionally, one or more carbon atoms which are not adjacent in the alkyl group are Oxygen or sulfur substitution.
  • the halogen is fluorine.
  • the molecular formula of the material is
  • the polar anchoring group is linked to the polymerizable group, which is advantageous for increasing the aspect ratio of the material, thereby reducing the fluid viscosity of the material and improving the diffusion effect of the material on the surface of the substrate.
  • the polymer layer is formed to enhance the reliability of the panel.
  • the material prepared by the invention can replace the PI oriented film in the TFT-LCD, eliminating the PI segment process and greatly reducing the production cost.
  • Figure 1 is a schematic view of the action of the material of the present invention in a TFT-LCD.
  • the H 1 -NMR data of the compound e are as follows: ⁇ : 0.96 (3H), 1.33 (2H), 1.29 (2H), 1.62 (2H), 2.55 (2H), 7.18 (2H), 7.43 (2H), 7.25 (1H) ), 7.31 (1H), 7.52 (1H), 7.41 (2H), 7.25 (2H), 5.41 (2H), 2.15 (2H), 6.15 (6H), 5.58 (1H), 2.0 (1H).
  • the H 1 -NMR data of the compound e2 are as follows: ⁇ : 0.96 (3H), 1.33 (2H), 1.29 (2H), 1.62 (2H), 2.55 (2H), 7.18 (2H), 7.43 (2H), 7.29 (2H) ), 7.45 (2H), 7.13 (2H), 5.88 (1H), 6.60 (1H), 2.90 (2H), 11.0 (1H).
  • the composition of the self-aligned liquid crystal used in Application Examples 1-3 mainly includes a negative liquid crystal material, a vertical alignment agent material, and a polymerizable monomer, and the mass ratio of the three is 97%: 2 to 2.5%: 0.5 to 1%.
  • the negative liquid crystal material adopts a conventional material in the art, and the polymerizable monomer is:
  • the mixed self-orienting liquid crystal material was vacuum injected into an empty test panel without PI.
  • Comparative Example 1 the prior art was used to prepare a PI alignment film and then inject a liquid crystal material.
  • Example 2 it is good 99%
  • Example 3 it is good 99%
  • Comparative example 1 it is good 99%
  • Voltage holding rate test method voltage 1V, frequency 60Hz, temperature 60 °C.
  • the application of the self-aligning material provided by the present invention in a liquid crystal display can achieve effects comparable to those of the prior art.
  • the invention saves the preparation process of the PI film and greatly reduces the cost of producing the panel.

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Abstract

垂直取向剂材料的分子结构如式I所示。其中，Q为极性锚定基团，L1为刚性基团，P为可聚合性基团，L2为连接基团，R为末端柔性基团，n为1-3。极性锚定基团与可聚合性基团相连接，有利于提高材料的长径比，从而降低材料的流体粘度，提高自身在基板表面的扩散效果。

Description

[根据细则37.2由ISA制定的发明名称]　垂直取向剂材料
本申请要求享有2016年12月29日提交的名称为“一种垂直取向剂材料”的中国专利申请CN201611247733.0的优先权，其全部内容通过引用并入本文中。
技术领域
本发明属于液晶取向材料领域，涉及一种垂直取向剂材料。
背景技术
在液晶显示器(LCD)的CF(color filter，彩色滤光片)基板和TFT(Thin Film Transistor，薄膜晶体管)基板上，分别有一层薄膜材料，其主要作用是使液晶分子按一定方向排列，我们称之为配向膜，常用聚酰亚胺(PI)材料。这种配相膜主要分为摩擦配向型PI材料和光配向型PI材料，但是，两种配向型材料都存在缺点。首先，摩擦配向型会有粉尘颗粒、静电残留、刷痕等问题，降低工艺良率，而光配向材料虽然可以避免这些问题，但由于材料特性受限，耐热性和耐老化性不佳，同时锚定LC(Liquid Crystal，液晶)分子的能力也较弱，从而影响面板的品质。其次，PI材料本身就具有高极性和高吸水性，存储和运送容易造成变质而导致配向不均，并且PI材料价格昂贵，在TFT-LCD(Thin Film Transistor Liquid Crystal Display，薄膜晶体管液晶显示屏)上成膜的工艺也较为复杂，导致面板成本提高。再次，PI溶液中还含有大量N-甲基吡咯烷酮(NMP)溶剂，所以配向层的制程是能耗高、极其不环保且易对人体造成危害。此外，由于配向层不均匀性、缺涂、不粘以及异物等问题，还会对产品良率造成损失，导致资源浪费以及产品制造成本提高。
因此，在TFT-LCD中，若能够在省去PI膜的情况下，还能使液晶分子排列，这将会大大降低生产面板的成本。但是液晶分子在无PI膜的TFT-LCD中，将会直接接触面板上的无机材料。因此，有必要设计一种具聚合基团的自取向剂材料，以达到控制液晶分子取向的目的。
发明内容
本发明的一个目的是提供一种垂直取向剂材料，这种材料的的结构中包括极性锚定基团、可聚合性基团、中间刚性基团以及尾基柔性基团四部分，锚定基团的主要作用是利用 自身的极性基团以物理作用的方式锚定在无极性基板表面；可聚合性基团主要是UV(紫外光)聚合形成一层致密的聚合物膜，中间基团和末基的主要作用是类似于PI支链的作用以立体障碍的方式使液晶分子垂直排列。
根据本发明的一个方面，提供一种自取向材料，所述材料的分子结构如式I所示：
Figure PCTCN2017071284-appb-000001
其中，Q为极性锚定基团，L1为刚性基团，P为可聚合性基团，L2为连接基团，R为末端柔性基团，n为1-3。
根据本发明的优选实施方式，所述极性锚定基团Q选自胺基、-OH、-COOH、-SH、-CN、-Si(CH3)3、-Si(OCH3)3或-SiCl3中的任意一种。
根据本发明的优选实施方式，所述可聚合性基团P是指在紫外光下可聚合性基团。优选选自甲基丙烯酸酯基、丙烯酸酯基、乙烯基或乙烯氧基中的任意一种。
根据本发明的优选实施方式，所述L2选自被卤素取代或未取代的C3-C20直链或支链亚烷基，任选地，其中一个或多个碳原子被-O-、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-基团所替代。优选地，所述卤素为F或Cl；
根据本发明的优选实施方式，所述L1为
Figure PCTCN2017071284-appb-000002
其中，y选自0-5之间的整数，优选为0-3之间的整数；
A彼此相同或不同的为取代或未取代的C6-C14亚芳基或C4-C6亚环烷基的任意一种，所述亚芳基包括亚苯基、亚稠环芳基、亚联苯型多环芳基；优选地，所述亚环烷基上C的个数为4-6；优选地，A为取代或未取代的亚联苯型多环芳基；
所述A的取代基团选自卤素、氰基、C1-C8直链或支链烷基中的一种或多种，其中，任选地，所述烷基中非相邻的一个或多个碳原子被氧或硫替代；
Sp彼此相同或不同的为单键或C1-C8烷基，其中，任选地，一个或多个碳原子被-O-、-S-、-CO-、-CO-O-、-O-CO-、-O-CO-O-、-OCH2-、-CH2O-、-CH＝CH-、-CF＝CF-、-C≡C-、-CH＝CH-COO-或-OCO-CH＝CH-中的任意一种替代，优选地，所述Sp为单键。
根据本发明的优选实施方式，所述R选自被卤素取代或未取代的C2-C10烷基，其中，任选地，所述烷基中非相邻的一个或多个碳原子被氧或硫替代。优选地，所述卤素为氟。
根据本发明的优选实施方式，所述材料的分子式为
Figure PCTCN2017071284-appb-000003
Figure PCTCN2017071284-appb-000004
或
Figure PCTCN2017071284-appb-000005
本发明中，所述极性锚定基团与可聚合性基团相连接，这样有利于提高材料的长径比，从而降低材料的流体粘度，提高自身在基板表面的扩散效果。所述材料在紫外光照射后，形成聚合物层，提升面板的信赖性。
本发明制备的材料可以取代TFT-LCD中的PI取向膜，省去了PI段制程，大大降低生产成本。
附图说明
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例共同用于解释本发明，并不构成对本发明的限制。在附图中：
图1是本发明所述材料在TFT-LCD中的作用示意图。
具体实施方式
以下结合实施例对本发明进行详细说明，但本发明并不受下述实施例限定。
合成实施例1
化合物的合成路线如下所示：
Figure PCTCN2017071284-appb-000006
中间体c的制备：
室温下将20.0g化合物a(67.6mmol)加入到600mLTHF中混合均匀后冷却到-78℃；然后滴加50mL含有正丁基锂为75mmol的正己烷溶液，搅拌10min；再加入40mL含有4g 环氧乙烷的THF溶液(体系温度为2℃)；再滴加10mL温度为-78℃的三氟乙酯，并搅拌15min；分离提纯后可得到产物11g c。
化合物e的合成：
将3mmol化合物c加入到3mmol化合物d中，混合均匀后，在110℃反应1h，反应结束后，将反应液温度降低至70℃，然后加入20mL正己烷，继续反应3h，提纯后得到产物e。
化合物e的H1-NMR数据如下：δ:0.96(3H)，1.33(2H)，1.29(2H)，1.62(2H),2.55(2H)，7.18(2H)，7.43(2H)，7.25(1H)，7.31(1H)，7.52(1H)，7.41(2H)，7.25(2H)，5.41(2H)，2.15(2H)，6.15(6H)，5.58(1H)，2.0(1H)。
Figure PCTCN2017071284-appb-000007
合成实施例2
另一种化合物的合成路线如下所示：
Figure PCTCN2017071284-appb-000008
中间体c2的制备：
室温下将20.0g化合物a2(67.6mmol)加入到600mLTHF中混合均匀后冷却到-78℃；然后滴加50mL含有正丁基锂为75mmol的正己烷溶液，搅拌10min；再加入40mL含有4g环氧乙烷的THF溶液(体系温度为2℃)；再滴加10mL温度为-78℃的三氟乙酯，并搅拌15min；分离提纯后可得到产物11g c2。
化合物e2的合成：
将3mmol化合物c2加入到3mmol化合物d2中，混合均匀后，在110℃反应1h，反 应结束后，将反应液温度降低至70℃，然后加入20mL正己烷，继续反应3h，提纯后得到产物e2。
化合物e2的H1-NMR数据如下：δ:0.96(3H)，1.33(2H)，1.29(2H)，1.62(2H),2.55(2H)，7.18(2H)，7.43(2H)，7.29(2H)，7.45(2H)，7.13(2H)，5.88(1H)，6.60(1H)，2.90(2H)，11.0(1H)。
Figure PCTCN2017071284-appb-000009
实施例1-3和对比例1
应用实施例1-3采用的自取向液晶的组成主要包括负型液晶材料、垂直取向剂材料以及可聚合性单体，三者的质量比例为97％：2～2.5％：0.5～1％。其中负型液晶材料采用本领域常规材料，可聚合性单体为：
Figure PCTCN2017071284-appb-000010
使用的垂直取向剂材料如表1所示：
表1
Figure PCTCN2017071284-appb-000011
将混合好的自取向液晶材料真空注入到不含PI的空测试面板中。
对比例1中使用现有技术，先制备PI配向膜，然后注入液晶材料。
实施例与对比例的结果比较如表2：
表2
  暗态效果 电压保值率
实施例1 好 99％
实施例2 好 99％
实施例3 好 99％
对比例1 好 99％
电压保持率测试方法：电压1V、频率60Hz、温度60℃。
由此可见，在液晶显示器中应用本发明提供的自取向材料，可以达到与现有技术相当的效果。本发明省去了PI膜的制备过程，大大降低生产面板的成本。
虽然在上文中已经参考了一些实施例对本发明进行了描述，然而在不脱离本发范围的情况下，可以对其进行各种改进，本发明所披露的各个实施例中的各项特征均可通过任意方式相互结合起来使用，在本说明书中未对这些组合的情况进行穷举性的描述仅仅是出于省略篇幅和节约资源的考虑。因此，本发明并不局限于文中公开的特定实施例，而是落入权利要求的范围的所有技术方案。
附图标记说明
1      极性锚定基团
2      可聚合性基团
3      刚性基团
4      末端柔性基团
5      液晶分子

Claims (15)

  1. 一种垂直取向剂材料，所述材料的分子结构如式I所示：
    Figure PCTCN2017071284-appb-100001
    其中，Q为极性锚定基团，L1为刚性基团，P为可聚合性基团，L2为连接基团，R为末端柔性基团，n为1-3。
  2. 根据权利要求1所述的垂直取向剂材料，其中，所述极性锚定基团Q选自胺基、-OH、-COOH、-SH、-CN、-Si(CH3)3、-Si(OCH3)3或-SiCl3中的任意一种。
  3. 根据权利要求1所述的材料，其中，所述可聚合性基团P是指在紫外光下可聚合性基团。
  4. 根据权利要求1所述的垂直取向剂材料，其中，所述可聚合性基团P选自甲基丙烯酸酯基、丙烯酸酯基、乙烯基或乙烯氧基中的任意一种。
  5. 根据权利要求2所述的垂直取向剂材料，其中，所述可聚合性基团P选自甲基丙烯酸酯基、丙烯酸酯基、乙烯基或乙烯氧基中的任意一种。
  6. 根据权利要求3所述的垂直取向剂材料，其中，所述可聚合性基团P选自甲基丙烯酸酯基、丙烯酸酯基、乙烯基或乙烯氧基中的任意一种。
  7. 根据权利要求1所述的垂直取向剂材料，其中，所述L2选自被卤素取代或未取代的C3-C20直链或支链亚烷基。
  8. 根据权利要求7所述的垂直取向剂材料，其中，烷基的一个或多个碳原子被-O-、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-基团所替代。
  9. 根据权利要求7所述的垂直取向剂材料，其中，所述卤素为F或Cl。
  10. 根据权利要求1所述的垂直取向剂材料，其中，所述L1为
    Figure PCTCN2017071284-appb-100002
    其中，y选自0-5之间的整数；
    A彼此相同或不同的为取代或未取代的C4-C14亚芳基或C4-C6亚环烷基的任意一种，所述亚芳基包括亚苯基、亚稠环芳基、亚联苯型多环芳基；
    Sp彼此相同或不同的为单键或C1-C8烷基，其中，任选地，一个或多个碳原子被-O-、-S-、-CO-、-CO-O-、-O-CO-、-O-CO-O-、-OCH2-、-CH2O-、-CH＝CH-、-CF＝CF-、-C≡C-、-CH＝CH-COO-或-OCO-CH＝CH-中的任意一种替代。
  11. 根据权利要求10所述的垂直取向剂材料，其中，所述A上的取代基团选自卤素、氰基、C1-C8直链烷基或C3-C8支链烷基中的一种或多种。
  12. 根据权利要求11所述的垂直取向剂材料，其中，所述烷基中非相邻的一个或多个碳原子被氧或硫替代。
  13. 根据权利要求1所述的垂直取向剂材料，其中，所述R选自被卤素取代或未取代的C2-C10烷基。
  14. 根据权利要求13所述的垂直取向剂材料，其中，所述烷基中非相邻的一个或多个碳原子被氧或硫替代。
  15. 根据权利要求1所述的垂直取向剂材料，其中，所述材料的分子式为
    Figure PCTCN2017071284-appb-100003
PCT/CN2017/071284 2016-12-29 2017-01-16 垂直取向剂材料 Ceased WO2018120325A1 (zh)

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