CN102863967B

CN102863967B - Photoreactivity aligning agent for liquid crystal, and liquid crystal aligning element and manufacture method thereof

Info

Publication number: CN102863967B
Application number: CN201210253558.1A
Authority: CN
Inventors: 大川春树; 幡中伸行; 左濑光敬
Original assignee: Sumitomo Chemical Co Ltd
Current assignee: Sumitomo Chemical Co Ltd
Priority date: 2011-07-07
Filing date: 2012-07-06
Publication date: 2016-08-03
Anticipated expiration: 2032-07-06
Also published as: TWI560206B; TW201311743A; JP6098053B2; KR20130006325A; KR101945053B1; CN102863967A; JP2013033248A

Abstract

A kind of novel photoreactivity aligning agent for liquid crystal is provided, and there is the liquid crystal display cells of the light redirecting layer formed by this photoreactivity aligning agent for liquid crystal.Formula (1 1)[in formula (1 1), Y¹And Y²Represent oxygen atom etc..R²And R⁴Represent the alkoxyl etc. of carbon number 1～2.P, q and r represent each construction unit mole fraction relative to general construction unit, and it meets the relation of 0.25 ＜ p 1,0 q ＜ 0.75 and 0 r ＜ 0.75.] a kind of photoreactivity aligning agent for liquid crystal, this photoreactivity aligning agent for liquid crystal oriented layer formed and liquid crystal display cells with this light redirecting layer containing shown polymer is provided.

Description

Photoreactivity aligning agent for liquid crystal, and liquid crystal aligning element and manufacture method thereof

Technical field

The present invention relates to photoreactivity aligning agent for liquid crystal, and liquid crystal aligning element and manufacture method thereof.

Background technology

In flat panel display device (FPD), containing the optically anisotropic optics such as polarization plate and polarizer Anisotropic band (oriented layer) is as component.Such optical anisotropic layer is typically formed by two kinds of methods.Its method, the A kind of method being strained polymer and forming optical anisotropic layer, the second is that the coated film obtained by coating alignment agent is formed The method of optical anisotropic layer.

Especially latter method, because of the optical anisotropic layer formed by alignment agent, its optical axis direction is easily controlled System, on this optical anisotropic layer, be orientated immobilization liquid-crystal compounds and the blooming (liquid crystal aligning element) that formed at this In matter be thin film, can by volume to volume (Roll to Roll), operation is carried out continuously production, thus it is favourable for saying this aspect.

Such as, in non-patent literature 1, describe containing polymerizable liquid crystal compound (trade name: the L shown in following formula C242, BASF society system) solution be coated in oriented layer after, be polymerized this polymerizable liquid crystal compound obtain polarization photosphere system Make method, obtain liquid crystal aligning element by this manufacture method.But, this polymerizable liquid crystal compound becomes nematic phase and higher The polymerizable liquid crystal of the smectic phase of dimension, the light redirecting layer with alignment capability, and the light that can form this light redirecting layer takes Do not know to agent.

Prior art literature

Non-patent literature

Non-patent literature 1

Cordula Mock-Knoblauch, Olivier S.Enger, Ulrich D.Schalkowsky, " L-7Novel Polymerisable Liquid Crystalline Acrylates for the Manufacturing of Ultrathin Optical Films ", SID Symposium Digest of Technical Papers, 2006, volume 37, p.1673

Summary of the invention

The problem that the invention solves the problems that

Formed by polymerizable liquid crystal compound the smectic phase of nematic phase and higher dimension polymerizable liquid crystal, there is orientation The light redirecting layer of ability, and the novel photo-alignment agent (photoreactivity aligning agent for liquid crystal) that can form this light redirecting layer expired Treat.

The method solving problem

The present invention is made up of following (1)～(12).

(1) the photoreactivity aligning agent for liquid crystal containing polymer shown in formula (1-1).

[in formula (1-1),

N and m represents 0 or 1 independently of one another.

V and w represents the integer of 1～3 independently of one another.

S¹And S²Represent the alkylidene of the carbon number 1～12 can with fluorine atom or cyano group independently of one another.

S³Expression can have the alkyl of the carbon number 1～12 of fluorine atom or cyano group.

X¹、X²、X³、X⁴And X⁵Represent singly-bound, oxygen atom, carbonyl acyloxy or methylene independently of one another.

Y¹And Y²Represent singly-bound, oxygen atom or carbonyl acyloxy independently of one another.

R¹And R³Represent hydrogen atom, the alkyl of carbon number 1～4 or the alkoxyl of carbon number 1～4 independently of one another.

R²And R⁴Represent alkoxyl, cyano group or the halogen atom of carbon number 1～2 independently of one another, when v is 2 or 3, deposit At multiple R²Identical or different, when w is 2 or 3, there is multiple R⁴Identical or different.

R⁵、R⁶And R⁷Represent hydrogen atom or methyl independently of one another.

P, q and r represent each construction unit mole fraction relative to general construction unit, and it meets 0.25 ＜ p 1,0 q The relation of ＜ 0.75 and 0 r ＜ 0.75.]

(2) the photoreactivity aligning agent for liquid crystal described in above-mentioned (1), above-mentioned polymer be the q in above-mentioned formula (1-1) be 0 Polymer.

(3) above-mentioned (1) or (2) described in photoreactivity aligning agent for liquid crystal, above-mentioned polymer is the r in above-mentioned formula (1-1) It it is the polymer of 0.

(4) above-mentioned (1)～the photoreactivity aligning agent for liquid crystal described in any one of (3), above-mentioned polymer is above-mentioned formula (1-1) R in¹And R²It is each independently the polymer of methoxy or ethoxy.

(5) above-mentioned (1)～the photoreactivity aligning agent for liquid crystal described in any one of (4), above-mentioned polymer is above-mentioned formula (1-1) n and m in is the polymer of 0.

(6) coated film is formed, to this painting by the photoreactivity aligning agent for liquid crystal described in any one of above-mentioned (1)～(5) Cloth film carries out the liquid crystal aligning layer of polarizing light irradiation.

(7) liquid crystal aligning element, is to have liquid crystal aligning layer described in above-mentioned (6), the liquid crystal aligning element of polarization photosphere,

Above-mentioned polarization photosphere, is the coating composition solution containing polymerizable liquid crystal compound on above-mentioned liquid crystal aligning layer Obtain coated film,

Above-mentioned polymerizable liquid crystal compound contained in above-mentioned coated film carries out polarizing light irradiation be allowed to be polymerized and shape Become.

(8) the liquid crystal aligning element described in above-mentioned (7), above-mentioned polymerizable liquid crystal compound is to present smectic liquid crystal state Compound.

(9) the liquid crystal aligning element described in above-mentioned (7), above-mentioned polymerizable liquid crystal compound is to present high dimension smectic phase liquid The compound of crystalline state.

(10) the liquid crystal aligning element described in above-mentioned (7), above-mentioned polymerizable liquid crystal compound is from isotropic phase liquid crystal State directly presents the compound of nematic liquid crystal state.

(11) the liquid crystal aligning element described in above-mentioned (10), above-mentioned polymerizable liquid crystal compound is by formula (2) Suo Shi.

[in formula (2),

Q¹Represent that replacement or unsubstituted polycycle aromatic hydrocarbyl or replacement or unsubstituted polycycle aromatic series are miscellaneous Ring group.

D¹And D²Represent singly-bound or the linking group of divalent independently of one another.

G¹And G²Representing the ester ring type alkyl of divalent independently of one another, this hydrogen atom contained by ester ring type alkyl can be by halogen Atom, the alkyl of carbon number 1～4, the fluoroalkyl of carbon number 1～4, carbon number 1～4 alkoxyl, cyano group or nitro take In generation, constitute-the CH of this ester ring type alkyl₂-can be replaced by-O-,-S-or-NH-.

E¹And E²Represent singly-bound or the linking group of divalent independently of one another.

B¹And B²Represent singly-bound or the linking group of divalent independently of one another.

A¹And A²Represent ester ring type alkyl or the aromatic hydrocarbyl of divalent of divalent independently of one another, this ester ring type alkyl and should Hydrogen atom contained by aromatic hydrocarbyl can be by halogen atom, the alkyl of carbon number 1～4, carbon number 1～4 alkoxyl, cyanogen Base or nitro replace.Hydrogen atom contained in the alkyl of this carbon number 1～4 and this carbon number 1～4 alkoxyl can be by fluorine Atom replaces.

K and l represents the integer of 0～3 independently of one another.When k is more than 2, there is multiple A¹The most identical or , there is multiple B in difference¹The most identical or different.When l is more than 2, there is multiple A²The most identical or not With, there is multiple B²The most identical or different.

F¹And F²Representing the alkylidene of carbon number 1～12 independently of one another, the hydrogen atom that this alkylidene is comprised can be by carbon The alkoxy or halogen atom of atomic number 1～5 replaces, and constitutes-the CH of this alkylidene₂-, can be replaced by-O-or-CO-.

P¹And P²Though represent hydrogen atom, acryloxy or methacryloxy independently of one another, but P¹And P²Can be not same Time be hydrogen atom.]

(12) compound shown in formula (1-3).

[in formula (1-3),

N represents 0 or 1.V represents the integer of 1～3.

S¹Expression can have the alkylidene of the carbon number 1～12 of fluorine atom or cyano group.

X¹And X³Represent singly-bound, oxygen atom, carbonyl acyloxy or methylene independently of one another.

Y¹Represent singly-bound, oxygen atom or carbonyl acyloxy.

R¹Represent hydrogen atom, the alkyl of carbon number 1～4 or the alkoxyl of carbon number 1～4.

R²Represent alkoxyl, cyano group or the halogen atom of carbon number 1～2, when v is 2 or 3, there is multiple R²Identical Or it is different.

R⁵Represent hydrogen atom or methyl.]

Invention effect

Photoreactivity aligning agent for liquid crystal according to the present invention, can form polymerizable liquid crystal compound and become nematic phase and higher The light redirecting layer with alignment capability of the smectic phase polymerizable liquid crystal of dimension.

Detailed description of the invention

＜ photoreactivity aligning agent for liquid crystal ＞

The photoreactivity aligning agent for liquid crystal of the present invention is (to be also referred to as below according to situation containing polymer shown in formula (1-1) " polymer (1-1) ".) photoreactivity aligning agent for liquid crystal.

In formula (1-1),

N and m represents 0 or 1 independently of one another.

V and w represents the integer of 1～3 independently of one another.

P, q and r represent each construction unit mole fraction relative to general construction unit, and it meets 0.25 ＜ p 1,0 q The relation of ＜ 0.75 and 0 r ＜ 0.75.

In above-mentioned formula (1-1), the dotted line connecting each construction unit represents that the copolymerized form of this each construction unit is without limit especially Fixed, for random copolymerization, block copolymerization, alternating copolymerization and combinations thereof.

S¹And S²Had fluorine atom or the alkylidene of carbon number 1～12 of cyano group refer to, alkylidene or this alkylidene Contained a part of hydrogen atom, the group replaced by fluorine atom and/or cyano group.Such alkylidene can be straight-chain or prop up Chain.S¹And S²The most unsubstituted (not there is fluorine atom and cyano group), and the alkylidene of the carbon number 1～12 of straight-chain, more excellent Select the alkylidene of carbon number 2～11, particularly preferred ethylidene, butylidene, hexylidene and alkylene undecyl.

S³Had fluorine atom or the alkyl of carbon number 1～12 of cyano group refer to, contained by alkyl or this alkyl A part of hydrogen atom, the group replaced by fluorine atom and/or cyano group.Such alkyl can be straight-chain or side chain.S³Preferably Unsubstituted (not there is fluorine atom and cyano group), and the alkyl of the carbon number 1～12 of straight-chain, further preferred methyl, ethyl, Propyl group, butyl, hexyl, octyl group, decyl, undecyl and dodecyl.

X¹、X²、X³、X⁴And X⁵Preferably it is each independently singly-bound or carbonyl acyloxy, particularly preferred carbonyl acyloxy.

Y¹And Y²Preferably it is each independently oxygen atom or carbonyl acyloxy, particularly preferred oxygen atom.

R¹And R³It is more preferably each independently hydrogen atom, methyl and methoxyl group, particularly preferred hydrogen atom.

R²And R⁴Preferably it is each independently methoxyl group, ethyoxyl, cyano group or fluorine atom, more preferably methoxy or ethoxy, Particularly preferably methoxyl group.

R⁵、R⁶And R⁷Particularly preferably methyl.

N and m is preferably 0, v and w is preferably each independently 1 or 2.

P, q and r as it has been described above, represent respectively each construction unit of polymer (1-1) relative to general construction unit mole Divide rate.

Q preferably meets the relation of 0 q ＜ 0.25, particularly preferred q=0.

R preferably meets the relation of 0 r ＜ 0.25, particularly preferred r=0.

P preferably meets the relation of 0.75 ＜ p 1, if p=1, then special because of the excellent solvent resistance of the light redirecting layer of formation The most preferred.Meet the polymer (1-1) of the relation of q=0, r=0 and p=1 substantially by the construction unit shown in formula (1-2) Constitute.

(in formula, all of symbol is respectively provided with meaning same as described above.)

Herein, the manufacture method of the polymer (1-1) being substantially made up of the construction unit shown in formula (1-2) is said Bright.This polymer (1-1) can be entered by the monomer (being also referred to as " monomer (1-3) " below according to situation) shown in gathering (1-3) Row manufactures.

Monomer (1-3) is used for manufacturing polymer (1-1), is novel and useful compound, and the present invention also comprises and relates to this The invention of monomer (1-3).

The concrete example of monomer (1-3) is the compound etc. shown in such as formula (M1-1-1)～formula (M1-1-12).

For an embodiment of the manufacture method of monomer (1-3), enumerate X¹For carbonyl acyloxy, Y¹List for oxygen atom Illustrate as a example by body (1-3) [monomer (1-3) shown in formula (1-3A)].This monomer (1-3) can pass through shown in formula (1-3B) Compound reacts with the compound shown in formula (1-3C) and prepares.Relevant reaction shows as follows with the form of reaction equation.

In this reaction equation, X represents the halogen atom of chlorine atom and bromine atoms, and other symbol is respectively provided with same as described above Meaning.Compound shown in formula (1-3C) is according to desired S¹、R¹、R²And X³Manufacture Deng with known manufacture method ?.Compound shown in formula (1-3B) is such as (methyl) acryloyl chloride and (methyl) propylene acylbromide etc., these Jun Kecong cities Field is bought.

This reaction is generally implemented in a solvent.The solvent related to is the most active to this reaction, as long as formula (1-3B) Compound shown in shown compound and formula (1-3C) has enough dissolubilities, can use such as chloroform, dichloromethane Alkane, toluene, dimethylbenzene, oxolane and dimethyl acetylamide etc..

Additionally, this reaction is preferably implemented in the presence of the deoxidizers such as alkali.This alkali be such as, triethylamine, diisopropyl second Base amine, pyridine and dimethyl aminopyridine etc..

Then, the method that polymerization monomer (1-3) manufactures polymer (1-1) illustrates.

The polymerization being manufactured polymer (1-1) by monomer (1-3) can use the addition such as anionic polymerisation or radical polymerization to gather Close.The embodiment of radical polymerization can be any one of polymerisation in solution, polymerisation in bulk, emulsion polymerization and emulsifier-free emulsion polymerization Kind.But, it is contemplated that the stability of monomer (1-3) or fusing point, preferably polymerisation in solution.

As polymer solvent during polymerisation in solution, benzene, dichloromethane, oxolane and Anaesthetie Ether etc. are preferably used and do not make The solvent of free radical activity inactivation.Wherein, deliquescent viewpoint based on monomer (1-3), particularly preferred oxolane is as poly- Bonding solvent.

Polymerization temperature can be according to the kind of the polymerization initiator used and amount, the stability etc. of monomer (1-3) ,-20 DEG C～the scope of 200 ° of C suitably adjust, more preferably 20 DEG C～the scope of 120 DEG C, more preferably 30 DEG C～the scope of 100 DEG C, spy The most preferably 50 DEG C～the scope of 75 DEG C.

As polymerization initiator, the thermal initiator such as peroxide and azo-compound can be used, it is possible to use light described later Initiator.The temperature that thermal initiator produces generally according to free radical, is categorized as low temperature initiators, middle temperature initiator and high temperature and draws Send out agent.In the polymerization of monomer (1-3), can use among these initiators is arbitrary, or the combination of these initiators, but based on It is readily available the polymer (1-1) of high polymerization degree, is not susceptible to the angle of side reaction, middle temperature initiator, the most excellent Select azo-compound.Among this azo-compound, based on can angle in hand, particularly preferred azodiisobutyronitrile (AIBN)。

By above-mentioned azo-compound is used as polymerization initiator, though the polymer (1-1) of high polymerization degree can be manufactured, If but want to manufacture the polymer (1-1) of desired molecular weight, i.e. control the molecular weight of polymer (1-1), then can suitably use chain to turn Move agent, use atom transfer radical polymerization.

After polymerization, in order to remove unreacted monomer etc., it is preferable to carry out reprecipitation and purifies.It is molten that reprecipitation purification is used Agent can be enumerated, water, alcohols solvent, ether solvents, saturated hydrocarbon solvent, aromatic hydrocarbon solvents or their mixed solvent, can be according to poly- Close the kind of polymer solvent, the kind etc. of monomer (1-3) used, properly select solvent.

Alcohols solvent can be enumerated, methanol, ethanol, ethylene glycol, isopropanol, propylene glycol, Ethylene glycol methyl ether, ethylene glycol butyl Ether and propylene glycol monomethyl ether, the most more preferably methanol, ethanol and isopropanol.Ether solvents can be enumerated, oxolane and dimethoxy Base ethane, more preferably oxolane.Saturated hydrocarbons series solvent can be enumerated, pentane, normal heptane and hexamethylene, more preferably normal heptane. Aromatic hydrocarbon series solvent can be enumerated, benzene,toluene,xylene and chlorobenzene etc., preferably toluene and dimethylbenzene.The solvent related to can basis Its safety etc. properly selects most suitable, more preferably methanol, ethanol, isopropanol, toluene, toluene/heptane mixed solvent, Water/methanol mixed solvent, water/alcohol mixed solvent and water/oxolane mixed solvent, particularly preferred methanol, ethanol and isopropyl Alcohol.

The molecular weight of polymer (1-1) is with the polystyrene conversion such as tried to achieve by gel permeation chromatography (GPC method) Weight average molecular weight is indicated, and preferably 1 × 10³～1 × 10⁷Scope.But, if molecular weight is too high, then there will be in solvent Decreased solubility, it is difficult to prepare the photoreactivity aligning agent for liquid crystal of the present invention, and the tendency that the sensitivity irradiating light declines, because of This this molecular weight preferably 1 × 10⁴～1 × 10⁶Scope.Separately, the analysis condition of the GPC method trying to achieve this molecular weight passes through the application Embodiment illustrate.

As above the manufacture of polymer (1-1) can be carried out by the polymerization of monomer (1-3).Separately, in the polymerization of monomer (1-3) In, by and use following monomer, the polymer (1-1) of copolymer can be manufactured.But, when stating monomer under use, need to make to gather The mole fraction of each construction unit of compound (1-1) meets above-mentioned relation, adjusts monomer (1-3) and monomer shown below is respective Usage amount.

＜ photoreactivity aligning agent for liquid crystal ＞

The photoreactivity aligning agent for liquid crystal (being also referred to as " this aligning agent for liquid crystal " below according to situation) of the present invention is containing polymerization Thing (1-1), forms light redirecting layer to form method by light redirecting layer described later, more preferably contains polymer (1-1) and solvent. When preparing such aligning agent for liquid crystal, first polymer (1-1) is dissolved in solvent.The solvent related to can be able to dissolve Polymer (1-1), it is thus achieved that properly select in the range of this aligning agent for liquid crystal of appropriate viscosity, can enumerate such as methanol, ethanol, The alcohols solvents such as ethylene glycol, isopropanol, propylene glycol, Ethylene glycol methyl ether, ethylene glycol butyl ether and propylene glycol monomethyl ether；Acetic acid Ethyl ester, butyl acetate, Ethylene glycol methyl ether acetas, gamma-butyrolacton or the ester such as methyl proxitol acetate and ethyl lactate Solvent；The ketone solvents such as acetone, methyl ethyl ketone, Ketocyclopentane, Ketohexamethylene, 2-heptanone and methyl iso-butyl ketone (MIBK)；Pentane, hexane and heptan The aliphatic hydrocarbon solvents such as alkane；The nitrile solvents such as the aromatic hydrocarbon solvents such as toluene and dimethylbenzene, acetonitrile；Oxolane and dimethoxy second The ether solvents such as alkane；The chlorinated solvents such as chloroform and chlorobenzene；N-Methyl pyrrolidone, DMF, gamma-butyrolacton and two The amide series solvents etc. such as methylacetamide.These solvents can individually a kind of use or multiple combination use.

Polymer (1-1) relative to the concentration of this aligning agent for liquid crystal also dependent on the kind of this polymer (1-1) or dissolving Property suitably regulates, but represents with solid component concentration, more preferably at least 0.2 mass %, particularly preferred 0.3～10 mass % Scope.Additionally, this aligning agent for liquid crystal also can contain the photosensitizing agent such as the macromolecular material such as polyvinyl alcohol or polyimides or anthracene.

Polymer (1-1) is dissolved in this formulated aligning agent for liquid crystal of solvent can be direct, or carried out as required After filter etc., for the formation of light redirecting layer.

＜ light redirecting layer forms method ＞

To the forming method used containing polymer (1-1) and the light redirecting layer of this aligning agent for liquid crystal of solvent, (light is orientated Layer forms method) illustrate.First, this aligning agent for liquid crystal is coated on the support base material of regulation.The support base material related to is excellent Select transparent support base material.The method being coated with this aligning agent for liquid crystal on transparent support base material, can use spin coating-dip coating, extruding The rubbing methods such as method, intaglio plate coating, die coating method, stick coating method and coating process, or the known method such as the print process such as flexibility method.

Then, transparent support base material is coated with this aligning agent for liquid crystal and forms coated film, remove solvent shape from this coated film Become dry coationg.This removing solvent, can be used for being dried method (the heating side of removing solvent by heating at a proper temperature Method), or after enclosing suitable pressure vessel, make the pressure in this container under a reduced pressure for the method for dry removing solvent (decompression method), aeration-drying (method of ventilation), natural drying, or combine these methods and implement.Based on passing through volume to volume The point that the conitnuous forms of form are implemented, more preferably heating means.

Thickness that formed on transparent support base material, dry coationg containing polymer (1-1) be such as 1nm～ The scope of the scope of 10000nm, preferably 10nm～1000nm.The thickness of the dry coationg related to can be by adjusting this liquid crystal aligning The solid component concentration (the particularly solid component concentration of polymer (1-1)) of agent, this aligning agent for liquid crystal are for transparent base Application conditions is controlled.So, the dry coationg containing polymer (1-1) can be obtained to be arranged on transparent support base material Laminate.

Then, by irradiating polarized light UV (polarized ultraviolet) on the dry coationg of laminate, polymer (1-1) is made Orientation, gives liquid crystal aligning ability (being also referred to as " light orientation operation " below according to situation), forms light redirecting layer.Light orientation behaviour In work, when laminate is irradiated polarized light UV, the above-mentioned dry coationg side from this laminate can be used to start direct irradiation inclined Shake the form (form (A)) of light UV, or polarized light UV is irradiated in the above-mentioned transparent base side of this laminate, make polarized light UV Penetrate this transparent base, dry coationg is irradiated the form (form (B)) of polarized light UV.In these arbitrary forms, irradiate Polarized light UV can be the arbitrary of rectilinearly polarized light UV or elliptically polarized light UV, in order to enable to carry out expeditiously light orientation operation, Elliptically polarized light UV close to rectilinearly polarized light, or rectilinearly polarized light UV that extinction ratio high are preferably used.Additionally, this polarized light UV is particularly preferably almost directional light.Wherein, when carrying out light orientation operation according to form (B), in the laminate for use Transparent base, preferably its transparency are the highest more good.

As long as the photoreactive group of the polymer (1-1) that the wavelength of the polarized light UV irradiated contains in dry coationg In the wavelength region of (cinnamoyl) energy absorbing light energy.In particular it is especially preferred that the UV of wavelength 250～400nm scope (ultraviolet).Light source for light orientation operation can be enumerated: xenon lamp；High voltage mercury lamp；Ultrahigh pressure mercury lamp；Metal-halide lamp；KrF、 The ultraviolet lasers etc. such as ArF.Light source more preferably high voltage mercury lamp and ultrahigh pressure mercury lamp, metal-halide lamp for light orientation operation. Its reason is that the luminous intensity of the ultraviolet of the wavelength 313nm of these lamps is big.The light sent by above-mentioned light source is risen by suitable If partially irradiating laminate again after device, this laminate can be irradiated polarized light UV.The polarizer related to can use, and polarized light filters Mirror or polarizing prism or the wire grid type polarizer such as glan-thompson, Glan Taylor.

When the dry coationg of laminate is irradiated polarized light UV, the direction of illumination that it is not absolutely required to polarized light UV is the most vertical Straight in the in-plane of this laminate, the direction of illumination of polarized light UV can be tilted at the in-plane of this laminate.Polarized light UV Relative to the direction of illumination of the in-plane of this laminate, can be according to the light source used in light orientation operation and the kind of the polarizer Deng, make the light redirecting layer of acquisition have desired absorption axle and determine.

By said method etc., this aligning agent for liquid crystal light redirecting layer formed, in this light redirecting layer, coating is containing poly- The compositions of conjunction property liquid-crystal compounds, can make this polymerizable liquid crystal compound present nematic phase, or the smectic phase liquid of higher dimension Crystalline state (polymerizable liquid crystal).For the light redirecting layer obtained by this aligning agent for liquid crystal, polymerizable liquid crystal compound is made to become this It is extremely useful that the mesomorphic state (polymerizable liquid crystal) of sample can form this aligning agent for liquid crystal of light redirecting layer, this relevant knowledge It is specific to the present inventor with opinion.

As polymerizable liquid crystal compound, when using the polymerism smectic liquid crystal compound that can form smectic liquid crystal state, This polymerism smectic liquid crystal compound, mainly by combination dichromatic pigment, can obtain formation polarization photosphere on optical alignment film and form Liquid crystal aligning element.Additionally, as polymerizable liquid crystal compound, use the polymerism nematic liquid that can form smectic liquid crystal state During crystallization compound, the liquid crystal aligning element forming phase separation layer on optical alignment film can be obtained.So arrange in light redirecting layer partially Shake photosphere or phase separation layer time, with the solution containing polymerizable liquid crystal compound be coated be dried be allowed to photopolymerization. Hereinafter, these methods are divided into the situation using polymerism smectic liquid crystal compound, and use polymerism nematic liquid crystal compound Situation illustrate.Separately, in related description, the solution containing polymerism smectic liquid crystal compound is referred to as " polarization photosphere Formation compositions ", the solution containing polymerism nematic liquid crystal compound is referred to as " phase separation layer formation compositions ".

＜ uses the liquid crystal aligning element ＞ of polymerism smectic liquid crystal compound

Polymerism smectic liquid crystal compound refers to have polymerizable group, and presents the compound of smectic liquid crystal phase.Polymerization Property group refers to participate in the group of the polyreaction of this polymerism smectic liquid crystal compound.

The liquid crystalline phase that above-mentioned polymerism smectic liquid crystal compound is presented, the highest dimension smectic phase.Height described herein Dimension smectic phase be smectic B, smectic D phase, smectic E phase, smectic F phase, smectic G phase, smectic H phase, smectic I phase, smectic J phase, Smectic K phase and smectic L phase, wherein, preferably smectic B, smectic F phase, smectic I phase, tilted smectic F phase and tilted smectic I phase, more Preferably smectic B.If the smectic liquid crystal phase high order unit that polymerism smectic liquid crystal compound shows, then can form orientation degree of order Higher polarization photosphere, it is thus achieved that performance higher polarization photosphere.

Preferably polymerism smectic liquid crystal compositions can be enumerated, and such as the compound shown in formula (3-1) is (below according to situation Also referred to as " compound (3-1) ").

U¹-V¹-W¹-E¹-J¹-E²-J²-E³-W²-V²-U² (3-1)

[in formula (3-1),

E¹、E²And E³Represent the Isosorbide-5-Nitrae-hexamethylene that phenylene maybe can be had substituent group can with substituent group independently of one another Diyl.Wherein, E¹、E²And E³Among at least 1 be can have substituent group to phenylene.

J¹And J²Expression-CH independently of one another₂CH₂-、-CH₂O-,-COO-,-OCOO-, singly-bound ,-N=N-,-CR^a= CR^b-,-C ≡ C-or-CR^a=N-.R^aAnd R^bRepresent hydrogen atom or the alkyl of carbon number 1～4 independently of one another.

U¹Represent hydrogen atom or polymerizable group.

U²Represent polymerizable group.

W¹And W²Represent singly-bound ,-O-,-S-,-COO-or-OCOO-independently of one another.

V¹And V²Represent the alkylidene of the carbon number 1～20 can with substituent group independently of one another, constitute this alkylidene -CH₂-can be replaced by-O-,-S-or-NH-.]

In compound (3-1), as it has been described above, E¹、E²And E³Among at least 1 the Isosorbide-5-Nitrae-secondary benzene being to have substituent group Base, but preferably wherein at least 2 be can have substituent group to phenylene.

Above-mentioned the most unsubstituted to phenylene.Above-mentioned Isosorbide-5-Nitrae-hexamethylene diyl is preferably anti-form-1,4-hexamethylene diyl, equally The most unsubstituted.

Above-mentioned to phenylene or the substituent group that arbitrarily has of above-mentioned Isosorbide-5-Nitrae-hexamethylene diyl can be enumerated, methyl, ethyl and butyl Alkyl Deng carbon number 1～4；Cyano group；Halogen atom etc..Separately ,-the CH of Isosorbide-5-Nitrae-hexamethylene diyl is constituted₂-can by-O-,-S-or- NR⁷-replace.R⁷Alkyl or phenyl for carbon number 1～6.

The J of compound (3-1)¹It is preferably-CH₂CH₂-,-COO-or singly-bound, J²Preferably-CH₂CH₂-or-CH₂O-。

U²For polymerizable group.U¹For hydrogen atom or polymerizable group, preferred polymeric group.I.e., preferably U¹And U²Simultaneously For polymerizable group, it it is optical polymerism group the most simultaneously.Herein, optical polymerism group refers to, can be by photopolymerization described later The living radical of initiator generation or acid etc. participate in the group of polyreaction.If using the polymerization with optical polymerism group Property smectic liquid crystal compound, then can make this polymerism smectic liquid crystal compound be polymerized, in this under conditions of more low temperature It is favourable.

In compound (3-1), U¹And U²Optical polymerism group each other can be different, but the most congener base Group.As optical polymerism group, can enumerate vinyl, ethyleneoxy, 1-chlorovinyl, isopropenyl, 4-ethenylphenyl, third Alkene acyloxy, methacryloxy, epoxy ethyl and oxetanylmethoxy etc..Wherein, preferably acryloxy, methacryl Epoxide, ethyleneoxy, epoxy ethyl and oxetanylmethoxy, more preferably acryloxy.

V¹And V²Alkylidene can enumerate, methylene, ethylidine, trimethylene, 1,3-butylidene, tetramethylene, 1, 5-pentylidene, hexamethylene, 1,7-heptamethylene, octamethylene, 1,10-decylene, 1,14-Asia myristyl and 1,20- Alkylene eicosyl etc..V¹And V²The preferably alkylidene of carbon number 2～12, the more preferably alkylidene of carbon number 6～12.

The substituent group arbitrarily having as this alkylidene can be enumerated, cyano group and halogen atom etc., and this alkylidene is preferably nothing Replace, the most unsubstituted and alkylidene of straight-chain.

W¹And W²Preferred singly-bound or-O-independently of one another.

As compound (3-1), can enumerative (3-1-1)～any shown compound etc. of formula (3-1-24).When relating to The concrete example of compound (3-1) time there is Isosorbide-5-Nitrae-hexamethylene diyl, this Isosorbide-5-Nitrae-hexamethylene diyl is preferably trans body.

For the compound (3-1) enumerated, according to its formula numbers, hereinafter referred to as " compound (3-1-1) " etc..

The compound (3-1) enumerated can use individually or as two or more polymerism mixture of liquid crystall mixed.This Outward, using polymerism smectic compound of more than two kinds, among this polymerism smectic compound of more than two kinds, at least a kind is The form of compound (3-1).In the following description, there is the situation by using a kind of polymerism smectic liquid crystal compound, With the situation of use polymerism smectic liquid crystal compound of more than two kinds, it is referred to as the situation of " polymerism smectic liquid crystal compound ".

When compound (3-1) is used for polarizing photosphere formation compositions, try to achieve the phase in version temperature of compound (3-1) in advance Degree, under the temperature conditions less than this phase transition temperature, adjusts compound (the 3-1) [polymerization of polarization photosphere formation compositions Property smectic liquid crystal compound] beyond composition, make this compound (3-1) be polymerized.As the one-tenth that can control such polymerization temperature Point, Photoepolymerizationinitiater initiater described later, photosensitizing agent and polymerization inhibitor etc. can be enumerated.By suitably adjusting their kind and amount, can Control the polymerization temperature of compound (3-1).Separately, in polarization photosphere formation compositions, compound (3-of more than two kinds is used 1) mixture of [polymerism smectic liquid crystal compositions], i.e. during polymerism smectic liquid crystal compositions, tries to achieve this polymerism near equally After the phase transition temperature of brilliant liquid-crystal composition, identical with the situation of polymerism smectic liquid crystal compound, control polymerization temperature.

Among the compound (3-1) enumerated, preferred formula (3-1-3), formula (3-1-6), formula (3-1-7), formula (3-1-12), formula (3-1-13) and formula (3-1-23) arbitrarily shown in compound.These compounds (3-1) pass through to mix, or by with same Time the interaction of Photoepolymerizationinitiater initiater that uses, can be able to protect easily under the temperature conditions less than phase transition temperature Supercooling state is obtained in the case of holding sufficient high dimension smectic liquid crystal state, so that this compound (3-1) polymerization.More Specifically, by the interaction with Photoepolymerizationinitiater initiater, these compounds (3-1) are below 70 DEG C, preferably less than 60 DEG C Under temperature conditions, sufficient high dimension smectic liquid crystal state can be kept to be polymerized.

Above-claimed cpd (3-1) is as set forth above, it is possible to be one or more, but the most multiple.That is, in this polarization photosphere shape In one-tenth compositions, be preferably used polymerism smectic liquid crystal compositions two or more, preferred compound (3-1) two or more.

The content ratio of the compound (3-1) in above-mentioned polarization photosphere formation compositions, relative to this polarization photosphere shape The solid constituent of one-tenth compositions, preferably 70～99.9 mass %, more preferably 90～99.9 mass %.If compound (3-1) Content ratio within the above range, then has the tendency that the orientation of compound (3-1) uprises.Herein, solid constituent refers to, from This polarization photosphere formation compositions eliminates the composition total amount after the volatile ingredients such as solvent.Separately, multiple compounds is worked as (3-1) containing time in this polarization photosphere formation compositions, its total content ratio is within the above range.

Above-mentioned polarization photosphere formation compositions preferably comprises levelling (レべリ Application グ) agent.This levelling agent can adjust polymerization Property liquid-crystal composition mobility, have make by be coated with above-mentioned polarization photosphere formed by coated film obtained by compositions more smooth Function, can enumerate surfactant etc..Further preferably this levelling agent is selected from polyacrylic acid ester compounds as main constituent At least one among levelling agent and the levelling agent with fluorine-containing atomic compound as main constituent.

Levelling agent with polyacrylic acid ester compounds as main constituent can be enumerated, " BYK-350 ", " BYK-352 ", " BYK- 353 ", " BYK-354 ", " BYK-355 ", " BYK-358N ", " BYK-361N ", " BYK-380 ", " BYK-381 " and " BYK-392 " [BYK Chemie society] etc..

Levelling agent with fluorine-containing atomic compound as main constituent can be enumerated, " メガ Off ア Star Network R-08 ", with " R-30 ", with " R-90 ", same " F-410 ", same " F-411 ", same " F-443 ", same " F-445 ", same " F-470 ", same " F-471, ", same " F- 477 ", with " F-479 ", same " F-482 " and with " F-483 " " [DIC (strain)]；" サ mono-Off ロ Application S-381 ", with " S-382 ", with " S-383 ", with " S-393 " ", with " SC-101 ", with " SC-105 ", " KH-40 " and " SA-100 " [AGC セイミケミカ Le (strain)]；" E1830 ", " E5844 " [(strain) ダイキ Application Off アイ Application ケミカ Le institute]；" エ Off ト Star プ EF301 ", with " EF303 " ", with " EF351 " and with " EF352 " [Rhizoma Sparganii マテリア Le electronics chemical conversion (strain)] etc..

When making above-mentioned polarization photosphere formation compositions contain levelling agent, its content is relative to polymerism smectic liquid crystal chemical combination Thing 100 mass parts, more than preferably 0.3 mass parts below 5 mass parts, more than further preferred 0.5 mass parts below 3 mass parts. If the content of levelling agent is within the above range, then it is prone to make polymerism smectic liquid crystal compound horizontal alignment, and has and make formation Polarization photosphere become smoother tendency.If levelling agent exceedes above-mentioned model relative to the content of polymerism smectic liquid crystal compound Enclose, then have and make the polarization photosphere of acquisition be prone to produce uneven tendency.Separately, this polarization photosphere formation compositions can contain Levelling agent of more than two kinds.

Above-mentioned polarization photosphere formation compositions contains solvent.This solvent is it is contemplated that the polymerism smectic liquid crystal that used The dissolubility etc. of compound, properly selects preferable solvent.Wherein, this polymerism smectic liquid crystal compound of the most inconspicuous obstruction The atent solvent that carries out of polyreaction.Such solvent and preparation this aligning agent for liquid crystal compositions solvent cited by molten Agent is identical.Preparation polarization photosphere formation compositions solvent equally can individually or multiple combination use.

The content of the solvent in above-mentioned polarization photosphere formation compositions, relative to this polarization photosphere formation compositions Total amount, preferably 50～98 mass %.On the other hand, if the solid constituent of this polarization photosphere formation compositions 50 mass % with Under, then due to the viscosity of said composition, the thickness of coated film can become the most homogeneous.Additionally, for relevant solid constituent, Can determine according to the thickness of desired polarization photosphere.

Above-mentioned polarization photosphere formation compositions preferably comprises polymerization initiator.This polymerization initiator is to make polymerism The compound that the polyreaction of smectic liquid crystal compound starts, based on starting this polyreaction under conditions of more low temperature Point, preferably Photoepolymerizationinitiater initiater.Specifically, under this temperature conditions, living radical or acid can be produced by the effect of light Compound is used as Photoepolymerizationinitiater initiater.Among this Photoepolymerizationinitiater initiater, the more preferably effect by light produces the initiation of free radical Agent.

As above-mentioned Photoepolymerizationinitiater initiater, can enumerate, such as Benzoinum compound, benzophenone cpd, benzene alkyl ketone Compound, acylphosphine oxide compound, triaizine compounds, iodine salt and sulfonium salt etc..

Hereinafter, the concrete example of this Photoepolymerizationinitiater initiater is enumerated.

Benzoinum compound can be enumerated, such as Benzoinum, Benzoinum methyl ether, Benzoinum ethylether, benzoin isobutyl propyl group Ether and benzoin isobutyl butyl ether etc..

As benzophenone cpd, such as benzophenone, o-benzoyl yl benzoic acid methyl ester, 4-phenyl hexichol can be enumerated Ketone, 4-benzoyl-4 ,-methyldiphenyl sulfide, 3,3 ', 4,4 '-four (t-butylperoxycarbonyl) benzophenone and 2,4,6-tri-methyl benzophenones etc..

Benzene alkyl ketone compound can be enumerated, such as diethoxy acetophenone, 2-methyl-2-morpholino-1-(4-methyl sulfur benzene Base)-1-acetone, 2-benzyl-2-dimethylamino-1-(4-morpholinyl phenyl)-1-butanone, 2-hydroxy-2-methyl-1-phenyl-1- Acetone, 1,2-diphenyl-2,2-dimethoxy-1-ethyl ketone, 2-hydroxy-2-methyl-1-(4-(2-hydroxyl-oxethyl) phenyl)-1- Acetone, 1-hydroxycyclohexylphenylketone and 2-hydroxy-2-methyl-1-(4-(1-methyl ethylene) phenyl)-1-acetone oligomeric Thing etc..

Acylphosphine oxide compound can be enumerated, TMDPO and two (2,4,6-tri- Methyl benzoyl) phenyl phosphine oxide etc..

Triaizine compounds can be enumerated, such as 2,4-bis-(trichloromethyl)-6-(4-methoxyphenyl)-1,3,5-triazines, 2, 4-bis-(trichloromethyl)-6-(4-methoxyl group naphthyl)-1,3,5-triazines, 2,4-bis-(trichloromethyl)-6-(4-methoxy styrene Base)-1,3,5-triazines, 2,4-bis-(trichloromethyl)-6-(2-(5-methylfuran-2-base) vinyl)-1,3,5-triazines, 2,4- Two (trichloromethyl)-6-(2-(furan-2-base) vinyl)-1,3,5-triazines, 2,4-bis-(trichloromethyl)-6-(2-(4-diethyl Base amino-2-methyl phenyl) vinyl)-1,3,5-triazines and 2,4-bis-(trichloromethyl)-6-(2-(3,4-dimethoxy benzenes Base) vinyl)-1,3,5-triazines etc..

Photoepolymerizationinitiater initiater can use the product easily obtained from market.Commercially available Photoepolymerizationinitiater initiater can be enumerated, " イ Le ガキユア(Irgacure)907”、“イルガキユア184”、“イルガキユア651”、“イルガキユア819”、 " イ Le ガキユア 250 ", " イ Le ガキユア 369 " (チバジヤパ Application (strain))；" セイ Network オ mono-Le BZ ", " セイ Network オ mono-Le Z ", " セイ Network オ mono-Le BEE " (Seiko chemistry (strain))；" カヤキユア mono-(kayacure) BP100 " (day This chemical medicine (strain))；" カヤキユア mono-UVI-6992 " (ダウ society system)；" アデカオプトマ mono-SP-152 ", " アデカオプトマ mono-SP-170 " ((strain) ADEKA)；" TAZ-A ", " TAZ-PP " (Japan シイべ Le へグ Na one society)；And " TAZ- 104 " (three and ケミカ Le society) etc..

When above-mentioned polarization photosphere formation compositions contains polymerization initiator, its content can be formed according to this polarization photosphere Kind and amount thereof with the polymerism smectic liquid crystal compound contained by compositions are suitably regulated, such as, relative to poly- Total amount 100 mass parts of conjunction property smectic liquid crystal compound, the content of polymerization initiator preferably 0.1～30 mass parts, more preferably 0.5 ～10 mass parts, further preferred 0.5～8 mass parts.If the content of polymerizing initiator is within the range, then owing to not beating The orientation of random polymerism smectic liquid crystal compound and be allowed to be polymerized, therefore this polymerism smectic liquid crystal compound can keep high dimension It is polymerized in the case of smectic liquid crystal state.

Additionally, when above-mentioned polarization photosphere formation compositions contains Photoepolymerizationinitiater initiater, said composition also can contain light Sensitizer.This photosensitizing agent can be enumerated, such as the xanthone such as xanthone and thiaxanthone compound (such as, 2,4-diethyl Thiaxanthone, ITX etc.)；The anthracene compounds such as anthracene and the anthracene (such as, dibutoxy anthracene etc.) containing alkoxyl；Phenol thiophene Piperazine and rubrene etc..

When above-mentioned polarization photosphere formation compositions contains Photoepolymerizationinitiater initiater and photosensitizing agent, can be promoted this further The polyreaction of polymerism smectic liquid crystal compound contained in polarization photosphere formation compositions.Relevant photosensitizing agent Though usage amount can according to Photoepolymerizationinitiater initiater and the kind of polymerism smectic liquid crystal compound and amount thereof carry out suitably Regulation, but the most such as relative to total amount 100 mass parts of polymerism smectic liquid crystal compound, be 0.1～30 mass parts, more excellent Select 0.5～10 mass parts, further preferred 0.5～8 mass parts.

Though it is stated that by making above-mentioned polarization photosphere formation compositions contain photosensitizing agent, polymerism smectic can be promoted The polyreaction of liquid-crystal compounds, but in order to make this polyreaction stably carry out, can in this polarization photosphere formation compositions Suitably contain polymerization inhibitor.By containing polymerization inhibitor, the progress of polymerism smectic liquid crystal compound polyreaction can be controlled.

Above-mentioned polymerization inhibitor can be enumerated, such as hydroquinone, containing alkoxyl hydroquinone, containing alkoxyl catechol (such as, Butyl-catechol etc.), 1,2,3,-thrihydroxy-benzene, the free radical scavenger such as 2,2,6,6-tetramethyl-1-piperidines epoxide free radicals；Phenylmercaptan. Class；Betanaphthyl amine and betanaphthol class etc..

When above-mentioned polarization photosphere formation compositions contains polymerization inhibitor, its content can be according to the polymerism smectic liquid used The kind of crystallization compound and amount thereof, and the usage amount etc. of photosensitizing agent is suitably regulated, but the most such as, relative to poly- Total amount 100 mass parts of conjunction property smectic liquid crystal compound, the content of polymerization inhibitor is 0.1～30 mass parts, more preferably 0.5～10 matter Amount part, further preferred 0.5～8 mass parts.When polymerization inhibitor content within the range time, then owing to this polarized light can not be upset The orientation of polymerism smectic liquid crystal compound that contains in layer formation compositions and be allowed to be polymerized, therefore this polymerism smectic liquid crystal Compound can well, be polymerized in the case of further keeping high dimension smectic liquid crystal state.

By polarization photosphere formation compositions described above, coat and be provided with transparent support base material and light redirecting layer Coated film, the above-mentioned polymerism smectic liquid contained in making this coated film is obtained in the light redirecting layer of laminated board (the 1st laminated board) Under conditions of crystallization compound is not polymerized, form, by dry, the dry coationg that polarization photosphere is formed, it is thus achieved that the 2nd lamination Body.

Above-mentioned 1st laminated board is coated with the method (coating process) of above-mentioned polarization photosphere formation compositions, is dried side Method can use the method identical with the method illustrating to be coated with this aligning agent for liquid crystal on transparent support base material.The coating being thusly-formed The scope of the thickness of film preferably 0.5～10 μm, further preferred 0.5～3 scopes of μm.The thickness of this coated film can be according to expectation The thickness of the polarization photosphere obtained is set.Separately, the thickness of this polarization photosphere is by interfering film thickness gauge or laser microscope Or the value that the mensuration of contact type film thickness meter is tried to achieve.

Further, by contained by the dry coationg (polarization photosphere formation dry coationg) to above-mentioned 2nd laminate Polymerism smectic liquid crystal compound carries out photopolymerization, and this polymerism smectic liquid crystal compound is to keep smectic phase, to have arranged The mesomorphic state of the high dimension smectic phase lifted is polymerized, and final dry coationg is added into polarization photosphere.

＜ uses the liquid crystal aligning element ＞ of polymerism nematic liquid crystal compound

Then, on the optical alignment film formed by this aligning agent for liquid crystal, use phase separation layer to be formed and (contain by compositions The solution of polymerism nematic liquid crystal compound) formed phase separation layer method illustrate.

Polymerism nematic liquid crystal compound contained by above-mentioned phase separation layer formation compositions can be enumerated, such as formula (20) Shown compound (being also referred to as " compound (20) " below according to situation) etc..

P¹¹-E¹¹-(B¹¹-A¹¹)_t-B¹²-G (20)

[in formula (20),

A¹¹Represent divalent aromatic hydrocarbyl, divalent ester ring type alkyl or divalent heterocyclic radical, this divalent aromatic hydrocarbyl, this divalent fat Ring type alkyl and this hydrogen atom contained by divalent heterocyclic radical can be by halogen atom, the alkyl of carbon number 1～6, carbon numbers 1 ～the alkoxyl of 6, the N-alkyl amino of carbon number 1～6, N, the N-dialkyl amido of carbon number 2～12, nitro, cyano group Or sulfanyl replaces.

B¹¹And B¹²Expression-CR independently of one another¹⁴R¹⁵-,-C ≡ C-,-CH=CH-,-CH₂-CH₂-,-O-,-S-,-C (= O)-,-C (=O)-O-,-O-C (=O)-,-O-C (=O)-O-,-C (=S)-,-C (=S)-O-,-O-C (=S)-,-CH= N-,-N=CH-,-N=N-,-C (=O)-NR¹⁶-、-NR¹⁶-C (=O)-,-OCH₂-、-OCF₂-、-NR¹⁶-、-CH₂O-、- CF₂O-,-CH=CH-C (=O)-O-,-O-C (=O)-CH=CH-or singly-bound.R¹⁴And R¹⁵Represent hydrogen atom, fluorine independently of one another Atom or the alkyl of carbon number 1～4, R¹⁴And R¹⁵The alkylidene of carbon number 4～7 can be connected and composed.R¹⁶Represent hydrogen atom or The alkyl of carbon number 1～4.

E¹¹Represent the alkylidene of carbon number 1～12.Hydrogen atom contained by this alkylidene can be by carbon number 1～6 Alkyl, the alkoxy or halogen atom of carbon number 1～6 replace.

P¹¹Represent polymerizable group.

G represents hydrogen atom, halogen atom, the alkyl of carbon number 1～13, the alkoxyl of carbon number 1～13, carbon atom The fluoroalkyl of several 1～13, the N-alkyl amino of carbon number 1～13, N, the N-dialkyl amido of carbon number 2～26, cyano group, Nitro, or the polymerizable group of the alkylidene connection via carbon number 1～12, the hydrogen atom contained by this alkylidene can quilt The alkyl of carbon number 1～6, the alkoxy or halogen atom of carbon number 1～6 replace.

T represents the integer of 1～5.When the integer that t is more than 2, multiple A¹¹The most identical or different, multiple B¹¹Phase Between Hu identical or different.]

P¹¹And the polymerizable group in G can enumerate, vinyl, ethyleneoxy, styryl, p-(2-phenyl vinyl) benzene Base, acryloyl group, acryloxy, methylacryloyl, methacryloxy, carboxyl, acetyl group, hydroxyl, carbamyl Base, amino, N-alkyl amino, epoxy radicals, oxetanylmethoxy, formoxyl ,-N=C=O and the N=C=S of carbon number 1～4 Deng.Wherein, based on the point that photopolymerization reaction is high, preferably free radical polymerizable group or cationic polymerizable group, based on behaviour Make easy, to be easy to manufacture liquid-crystal compounds point, more preferably acryloxy, methacryloxy or ethyleneoxy.

Additionally, A¹¹The carbon number of divalent aromatic hydrocarbyl, divalent ester ring type alkyl and divalent heterocyclic radical respectively such as 3 ～the scope of 18, the scope of preferably 5～12, particularly preferred 5 or 6.

Compound (20) can be enumerated, such as the compound shown in the compound shown in formula (20-1) and formula (20-2).

P¹¹-E¹¹-(B¹¹-A¹¹)_t1-B¹²-E¹²-P¹² (20-1)

P¹¹-E¹¹-(B¹¹-A¹¹)_t2-B¹²-F¹¹ (20-2)

[in formula (20-1) and formula (20-2),

P¹¹、E¹¹、B¹¹、A¹¹And B¹²Meaning ibid.

F¹¹Represent that hydrogen atom, halogen atom, the alkyl of carbon number 1～13, the alkoxyl of carbon number 1～13, carbon are former The fluoroalkyl of subnumber 1～13, the N-alkyl amino of carbon number 1～13, N, the N-dialkyl amido of carbon number 2～26, cyanogen Base or nitro.

E¹²Representing the alkylidene of carbon number 1～12, this alkylidene can have the alkyl of carbon number 1～6, carbon number The alkoxy or halogen atom of 1～6.

P¹²Represent polymerizable group.

t¹And t²Represent the integer of 1～5 independently of one another.]

Further, the compound shown in these formulas (20-1) and (20-2) can be enumerated, formula (I), formula (II), formula (III), formula Or the compound shown in formula (V) (IV).

P¹¹-E¹¹-B¹¹-A¹¹-B¹²-A¹²-B¹³-A¹³-B¹⁴-A¹⁴-B¹⁵-A¹⁵-B¹⁶-E¹²-P¹² (I)

P¹¹-E¹¹-B¹¹-A¹¹-B¹²-A¹²-B¹³-A¹³-B¹⁴-A¹⁴-B¹⁵-E¹²-P¹² (II)

P¹¹-E¹¹-B¹¹-A¹¹-B¹²-A¹²-B¹³-A¹³-B¹⁴-E¹²-P¹² (III)

P¹¹-E¹¹-B¹¹-A¹¹-B¹²-A¹²-B¹³-A¹³-B¹⁴-F¹¹ (IV)

P¹¹-E¹¹-B¹¹-A¹¹-B¹²-A¹²-B¹³-F¹¹ (V)

[in formula (I)～formula (V),

A¹²～A¹⁵The same A of meaning¹¹, B¹³～B¹⁶The same B of meaning¹¹。]

Separately, at formula (20-1), formula (20-2), formula (I), formula (II), formula (III), formula (IV) and the compound shown in formula (V) In, preferably P¹¹With E¹¹Connected by ehter bond or ester bond, preferably P¹²With E¹²Connected by ehter bond or ester bond.

The concrete example of polymerism nematic liquid crystal compound can be enumerated, formula (I-1)～formula (I-5), formula (B1)～formula (B20), The compounds shown in formula (I) such as the compound shown in formula (C1)～formula (C4)；Compound shown in formula (II-1)～formula (II-6) Etc. the compound shown in formula (II)；The chemical combination shown in formula (III) of the compound etc. shown in formula (III-1)～formula (III-19) Thing；The compounds shown in formula (IV) such as the compound shown in formula (IV-1)～formula (IV-14)；Shown in formula (V-1)～formula (V-5) Compound etc. shown in the formula V such as compound.Separately, in formula, k represents that the integer of 1～11, * note represent bonding position.These polymerizations Property nematic liquid crystal compound be easy to manufacture based on comparing, or easily obtain from market and preferred.

(2 * in formula (B1) are arbitrary * bonding with (B1-1)～(B1-8).)

(2 * in formula (B2) are arbitrary * bonding with (B2-1)～(B2-8).)

(2 * in formula (B3) are arbitrary * bonding with (B3-1)～(B3-8).)

(2 * in formula (B4) are arbitrary * bonding with (B4-1)～(B4-8).)

(2 * in formula (B5) are arbitrary * bonding with (B5-1)～(B5-8).)

(2 * in formula (B6) are arbitrary * bonding with (B6-1)～(B6-8).)

(2 * in formula (B7) are arbitrary * bonding with (B7-1)～(B7-8).)

(2 * in formula (B8) are arbitrary * bonding with (B8-1)～(B8-8).)

(2 * in formula (B9) are arbitrary * bonding with (B9-1)～(B9-8).)

(2 * in formula (B10) are arbitrary * bonding with (B10-1)～(B10-8).)

(2 * in formula (B11) are arbitrary * bonding with (B11-1)～(B11-8).)

(2 * in formula (B12) are arbitrary * bonding with (B12-1)～(B12-8).)

(2 * in formula (B13) are arbitrary * bonding with (B13-1)～(B13-8).)

(2 * in formula (B14) are arbitrary * bonding with (B14-1)～(B14-8).)

(2 * in formula (B15) are arbitrary * bonding with (B15-1)～(B15-8).)

(2 * in formula (B16) are arbitrary * bonding with (B16-1)～(B16-8).)

(2 * in formula (B17) are arbitrary * bonding with (B17-1)～(B17-8).)

(2 * in formula (B18) are arbitrary * bonding with (B18-1)～(B18-8).)

(2 * in formula (B19) are arbitrary * bonding with (B19-1)～(B19-8).)

(2 * in formula (B20) are arbitrary * bonding with (B20-1)～(B20-8).)

(2 * in formula (C1) are arbitrary * bonding with (C1-1)～(C1-8).)

(2 * in formula (C2) are arbitrary * bonding with (C2-1)～(C2-8).)

(2 * in formula (C3) are arbitrary * bonding with (C3-1)～(C3-8).)

(2 * in formula (C4) are arbitrary * bonding with (C4-1)～(C4-8).)

Identical with compound (20), the polymerism nematic liquid crystal compound shown in formula (2) (is also referred to as below according to situation " compound (2) ") also can be by using, in above-mentioned light redirecting layer as the compound used in phase separation layer formation compositions Upper formation phase separation layer.

[in formula (2),

G¹And G²Representing the ester ring type alkyl of divalent independently of one another, the hydrogen atom that this ester ring type alkyl is comprised can be by halogen Atom, the alkyl of carbon number 1～4, the fluoroalkyl of carbon number 1～4, carbon number 1～4 alkoxyl, cyano group or nitro take In generation, constitute-the CH of this ester ring type alkyl₂-can be replaced by-O-,-S-or-NH-.

A¹And A²Represent ester ring type alkyl or the aromatic hydrocarbyl of divalent of divalent independently of one another, this ester ring type alkyl and should Hydrogen atom contained by aromatic hydrocarbyl can be by halogen atom, the alkyl of carbon number 1～4, carbon number 1～4 alkoxyl, cyanogen Base or nitro replace.Hydrogen atom contained by the alkyl of this carbon number 1～4 and this carbon number 1～4 alkoxyl can be former by fluorine Son replaces.

F¹And F²Representing the alkylidene of carbon number 1～12 independently of one another, the hydrogen atom contained by this alkylidene can be by carbon The alkoxy or halogen atom of atomic number 1～5 replaces, and constitutes-the CH of this alkylidene₂-can be replaced by-O-or-CO-.

P¹And P²Though represent hydrogen atom, acryloxy or methacryloxy independently of one another, but P¹And P²Time different For hydrogen atom.]

Q¹Concrete example can enumerate, formula (ar-1)～formula (ar-840) arbitrarily shown in group.In following group, Me table Show that methyl, Et represent that ethyl, * represent bonding position.

In formula (2), D¹And D²Represent singly-bound or the linking group of divalent independently of one another.The linking group of this divalent can be enumerated, Such as-CO-O-,-O-CO-,-C (=S)-O-,-O-C (=S)-,-CR⁴R⁵-、-CR⁴R⁵-CR⁶R⁷-、-O-CR⁴R⁵-、-CR⁴R⁵- O-、-CR⁴R⁵-O-CR⁶R⁷-、-CR⁴R⁵-O-CO-、-O-CO-CR⁴R⁵-、-CR⁴R⁵-O-CO-CR⁶R⁷-、-CR⁴R⁵-CO-O- CR⁶R⁷-、-NR⁸-CR⁴R⁵-、-CR⁴R⁵-NR⁸-、-CO-NR⁸-、-NR⁸-CO-、-O-、-S-、-NR⁸-and-CR⁴=CR⁵-etc..This Place, R⁴、R⁵、R⁶And R⁷Represent independently of one another hydrogen atom, fluorine atom or carbon number 1～4 alkyl (such as methyl, ethyl, Propyl group, isopropyl, butyl etc.).R⁸Represent hydrogen atom or alkyl (such as methyl, ethyl, propyl group, the isopropyl of carbon number 1～4 Base and butyl etc.).

Wherein, D¹And D²Independently of one another be preferably *-O-CO-, *-O-C (=S)-, *-O-CR⁴R⁵-、*-NR⁸-CR⁴R⁵- Or *-NR⁸-CO-, more preferably *-O-CO-, *-O-C (=S)-or *-NR⁸-CO-.Herein, * represents relative to compound (2)

The bonding position of a * in shown group.Preferably R⁴、R⁵、R⁶And R⁷It is each independently hydrogen atom or carbon atom The alkyl of several 1～4, more preferably hydrogen atom, methyl or ethyl.Preferably R⁸For hydrogen atom, methyl or ethyl.

G¹And G²Divalent ester ring type alkyl, preferably comprise the group of the scope that atom (ring member nitrogen atoms) number is 3～10 of ring. When ring member nitrogen atoms contains hetero atom, this hetero atom number is below 2.The concrete example of relevant ester ring type alkyl is enumerated as formula (g- 1)～formula (g-10) arbitrarily shown in group.Wherein, more preferably G¹And G²Divalent ester ring type alkyl be 5 rings or 6 rings Ester ring type alkyl.

(in formula, * represents bonding position.)

The most shown hydrogen atom contained by group of above-mentioned formula (g-1)～(g-10) can be by methyl, ethyl, isopropyl And the alkyl of the carbon number 1～4 such as the tert-butyl group；The alkoxyl of the carbon number such as methoxyl group and ethyoxyl 1～4；Trifluoromethyl etc. The fluoroalkyl of carbon number 1～4；The Fluoroalkyloxy of the carbon numbers such as trifluoromethoxy 1～4；Cyano group；Nitro；Fluorine atom, chlorine are former The halogen atoms such as son and bromine atoms replace.

G¹And G²Group shown in preferred formula (g-1), further preferred Isosorbide-5-Nitrae-hexamethylene diyl, particularly preferred anti-form-1,4-ring Dihexyl.

E¹And E²Divalent linking group can enumerate, such as-CR⁹R¹⁰-、-CH₂-CH₂-、-O-、-S-、-CO-O-、-O- CO-,-O-CO-O-,-C (=S)-O-,-O-C (=S)-,-O-C (=S)-O-,-CO-NR¹¹-、-NR¹¹-CO-、-O-CH₂-、- CH₂-O-、-S-CH₂-、-CH₂-S-、-NR¹¹-and-CR⁹=CR¹⁰-etc..R⁹And R¹⁰Represent independently of one another hydrogen atom, fluorine atom or The alkyl of carbon number 1～4.R¹¹Represent hydrogen atom or the alkyl of carbon number 1～4.

E¹And E²Preferably-CO-O-,-O-CO-,-O-CO-O-,-CO-NR¹¹-、-NR¹¹-CO-、-CH₂-O-、-CH₂-S-or list Key, more preferably-CO-O-.

B¹And B²Divalent linking group can enumerate, such as-CR⁹R¹⁰-、-CH₂-CH₂-、-O-、-S-、-CO-O-、-O- CO-,-O-CO-O-,-C (=S)-O-,-O-C (=S)-,-O-C (=S)-O-,-CO-NR¹¹-、-NR¹¹-CO-、-O-CH₂-、- CH₂-O-、-S-CH₂-、-CH₂-S-、-NR¹¹-and-CR⁹=CR¹⁰-etc..

Based on the viewpoint being more easily manufactured, preferably B¹And B²It is each independently-CH₂-CH₂-、-CO-O-、-O-CO-、- CO-NH-、-NH-CO-、-O-CH₂-、-CH₂-O-or singly-bound, show the point of extra high liquid crystal liquid crystal property based on compound (2), preferably- CO-O-or-O-CO-.

Additionally, based on can more easily manufacture the point of compound (2), preferably B¹With B²Identical.

A¹And A²In divalent ester ring type alkyl or the concrete example of divalent aromatic hydrocarbyl can enumerate, G¹And G²Explanation in arrange The formula (g-1) lifted～the most shown group of formula (g-10), and with following formula (a-1)～the most shown carbon atom of formula (a-8) The divalent aromatic hydrocarbyl of several 6～20.

The hydrogen atom contained by group shown in above-mentioned formula (a-1)～formula (a-8) can be by methyl, ethyl, isopropyl and uncle The alkyl of the carbon numbers such as butyl 1～4；The alkoxyl of the carbon number such as methoxyl group and ethyoxyl 1～4；The carbon such as trifluoromethyl are former The fluoroalkyl of subnumber 1～4；The Fluoroalkyloxy of the carbon numbers such as trifluoromethoxy 1～4；Cyano group；Nitro；Fluorine atom, chlorine atom and The halogen atoms such as bromine atoms replace.

Wherein, as A¹And A², preferably Isosorbide-5-Nitrae-phenylene or Isosorbide-5-Nitrae-hexamethylene diyl, based on easily manufacturing compound (2) Point, more preferably Isosorbide-5-Nitrae-phenylene.Further, based on more easily manufacturing the point of compound (2), preferably A¹With A²Identical.

The viewpoint of liquid crystal liquid crystal property based on compound (2), k and l is preferably 0,1 or 2.K's Yu l and preferably less than 5, more preferably Less than 4.

F¹And F²In carbon number 1～12 alkylidene preferably-(CH₂)₃-、-(CH₂)₄-、-(CH₂)₅-、-(CH₂)₆-、- (CH₂)₇-、-(CH₂)₈-、-(CH₂)₉-、-(CH₂)₁₀-、-(CF₂)₄-、-(CF₂)₆-、-(CF₂)₈-, more preferably-(CH₂)₄-、- (CH₂)₆-。

Preferably B¹And B²It is each independently-O-,-CO-O-,-O-CO-,-O-CO-O-,-CO-NH-,-NH-CO-or list Key.

P¹And P²Though representing hydrogen atom or polymerizable group independently of one another, but it it is asynchronously hydrogen atom.That is, P¹And P²It In at least 1 be polymerizable group.There is the point of the tendency of excellent hardness based on the phase separation layer obtained by compound (2), More preferably P¹And P²It is polymerizable group.

As long as polymerizable group can participate in the group of the polyreaction of compound (2).Though with above-claimed cpd (3- 1) U¹And U²Polymerizable group repeat, but the concrete example of this polymerizable group there are vinyl, ethyleneoxy, styrene Base, p-(2-phenyl vinyl) phenyl, acryloyl group, methylacryloyl, acryloxy, methacryloxy, carboxyl, Acetyl group, hydroxyl, carbamoyl, the N-alkyl amino of carbon number 1～4, amino, epoxy radicals, oxetanylmethoxy, formyl Base, isocyanato and different sulfur cyanato etc..Wherein, based on being suitable to the point of photopolymerization, preferably free radical polymerizable group and sun from Sub-polymerizable group, based on processing ease, the manufacture of compound (2) also easy point, more preferably acryloxy or methyl-prop Alkene acyloxy, particularly preferred acryloxy.

Polymerizable group can directly and F¹And F²Bonding, but preferably (the most above-mentioned by more than one divalent linking group B¹And B²In divalent linking group etc.) bonding.

-D¹-G¹-E¹-(A¹-B¹)_k-F¹-P¹And-D²-G²-E²-(A²-B²)₁-F²-P²Concrete example can enumerate, formula (R-1)～ Group shown in formula (R-134).* represent with

The bonding position of one * of shown group.

As compound (2), can the compound that represents of enumerative (A1)～formula (A73).

(2 * in formula (A1) are arbitrary * bonding with (A1-1)～(A1-8).)

(2 * in formula (A2) are arbitrary * bonding with (A2-1)～(A2-8).)

(2 * in formula (A3) are arbitrary * bonding with (A3-1)～(A3-8).)

(2 * in formula (A4) are arbitrary * bonding with (A4-1)～(A4-8).)

(2 * in formula (A5) are arbitrary * bonding with (A5-1)～(A5-8).)

(2 * in formula (A6) are arbitrary * bonding with (A6-1)～(A6-8).)

(2 * in formula (A7) are arbitrary * bonding with (A7-1)～(A7-8).)

(2 * in formula (A8) are arbitrary * bonding with (A8-1)～(A8-8).)

(2 * in formula (A9) are arbitrary * bonding with (A9-1)～(A9-8).)

(2 * in formula (A10) are arbitrary * bonding with (A10-1)～(A10-8).)

(2 * in formula (A11) are arbitrary * bonding with (A11-1)～(A11-8).)

(2 * in formula (A12) are arbitrary * bonding with (A12-1)～(A12-8).)

(2 * in formula (A13) are arbitrary * bonding with (A13-1)～(A13-8).)

(2 * in formula (A14) are arbitrary * bonding with (A14-1)～(A14-8).)

(2 * in formula (A15) are arbitrary * bonding with (A15-1)～(A15-8).)

(2 * in formula (A16) are arbitrary * bonding with (A16-1)～(A16-8).)

(2 * in formula (A17) are arbitrary * bonding with (A17-1)～(A17-8).)

(2 * in formula (A18) are arbitrary * bonding with (A18-1)～(A18-8).)

(2 * in formula (A19) are arbitrary * bonding with (A19-1)～(A19-8).)

(2 * in formula (A20) are arbitrary * bonding with (A20-1)～(A20-8).)

(2 * in formula (A21) are arbitrary * bonding with (A21-1)～(A21-8).)

(2 * in formula (A22) are arbitrary * bonding with (A22-1)～(A22-8).)

(2 * in formula (A23) are arbitrary * bonding with (A23-1)～(A23-8).)

(2 * in formula (A24) are arbitrary * bonding with (A24-1)～(A24-8).)

(2 * in formula (A25) are arbitrary * bonding with (A25-1)～(A25-8).)

(2 * in formula (A26) are arbitrary * bonding with (A26-1)～(A26-8).)

(2 * in formula (A27) are arbitrary * bonding with (A27-1)～(A27-8).)

(2 * in formula (A28) are arbitrary * bonding with (A28-1)～(A28-8).)

(2 * in formula (A29) are arbitrary * bonding with (A29-1)～(A29-8).)

(2 * in formula (A30) are arbitrary * bonding with (A30-1)～(A30-8).)

(2 * in formula (A31) are arbitrary * bonding with (A31-1)～(A31-8).)

(2 * in formula (A32) are arbitrary * bonding with (A32-1)～(A32-8).)

(2 * in formula (A33) are arbitrary * bonding with (A33-1)～(A33-8).)

(2 * in formula (A34) are arbitrary * bonding with (A34-1)～(A34-8).)

(2 * in formula (A35) are arbitrary * bonding with (A35-1)～(A35-8).)

(2 * in formula (A36) are arbitrary * bonding with (A36-1)～(A36-8).)

(2 * in formula (A37) are arbitrary * bonding with (A37-1)～(A37-8).)

(2 * in formula (A38) are arbitrary * bonding with (A38-1)～(A38-8).)

(2 * in formula (A39) are arbitrary * bonding with (A39-1)～(A39-8).)

(2 * in formula (A40) are arbitrary * bonding with (A40-1)～(A40-8).)

(2 * in formula (A41) are arbitrary * bonding with (A41-1)～(A41-8).)

(2 * in formula (A42) are arbitrary * bonding with (A42-1)～(A42-8).)

(2 * in formula (A43) are arbitrary * bonding with (A43-1)～(A43-8).)

(2 * in formula (A44) are arbitrary * bonding with (A44-1)～(A44-8).)

(2 * in formula (A45) are arbitrary * bonding with (A45-1)～(A45-8).)

(2 * in formula (A46) are arbitrary * bonding with (A46-1)～(A46-8).)

(2 * in formula (A47) are arbitrary * bonding with (A47-1)～(A47-8).)

(2 * in formula (A48) are arbitrary * bonding with (A48-1)～(A48-8).)

(2 * in formula (A49) are arbitrary * bonding with (A49-1)～(A49-8).)

(2 * in formula (A50) are arbitrary * bonding with (A50-1)～(A50-8).)

(2 * in formula (A51) are arbitrary * bonding with (A51-1)～(A51-8).)

(2 * in formula (A52) are arbitrary * bonding with (A52-1)～(A52-8).)

(2 * in formula (A53) are arbitrary * bonding with (A53-1)～(A53-8).)

(2 * in formula (A54) are arbitrary * bonding with (A54-1)～(A54-8).)

(2 * in formula (A55) are arbitrary * bonding with (A55-1)～(A55-8).)

(2 * in formula (A56) are arbitrary * bonding with (A56-1)～(A56-8).)

(2 * in formula (A57) are arbitrary * bonding with (A57-1)～(A57-8).)

(2 * in formula (A58) are arbitrary * bonding with (A58-1)～(A58-8).)

(2 * in formula (A59) are arbitrary * bonding with (A59-1)～(A59-8).)

(2 * in formula (A60) are arbitrary * bonding with (A60-1)～(A60-8).)

(2 * in formula (A61) are arbitrary * bonding with (A61-1)～(A61-8).)

(2 * in formula (A62) are arbitrary * bonding with (A62-1)～(A62-8).)

(2 * in formula (A63) are arbitrary * bonding with (A63-1)～(A63-8).)

(2 * in formula (A64) are arbitrary * bonding with (A64-1)～(A64-8).)

(2 * in formula (A66) are arbitrary * bonding with (A66-1)～(A66-8).)

(2 * in formula (A67) are arbitrary * bonding with (A67-1)～(A67-8).)

(2 * in formula (A68) are arbitrary * bonding with (A68-1)～(A68-8).)

(2 * in formula (A69) are arbitrary * bonding with (A69-1)～(A69-8).)

(2 * in formula (A70) are arbitrary * bonding with (A70-1)～(A70-8).)

(2 * in formula (A71) are arbitrary * bonding with (A71-1)～(A71-8).)

(2 * in formula (A72) are arbitrary * bonding with (A72-1)～(A72-8).)

(2 * in formula (A73) are arbitrary * bonding with (A73-1)～(A73-8).)

As forming the polymerism nematic liquid crystal compound that phase separation layer is used, can be used alone the compound enumerated , or two or more is suitably used in mixed way (2).Especially with formula (A1)～the most shown compound of formula (A73), owing to obtaining Phase separation layer be inverse wave length dispersion phase separation layer and more preferably.These compounds (2), show more based on this wavelength dispersibility Preferably the point of inverse wave length dispersibility and preferred.

In above-mentioned phase separation layer formation compositions, further preferably contain polymerization initiator.Suitably polymerization initiator With arbitrarily contain in above-mentioned polarization photosphere formation compositions, identical as cited by preferred polymerization initiator.Additionally, As above-mentioned polarization photosphere formation compositions, also can be containing being used for promoting polymerism in this phase separation layer formation compositions The photosensitizing agent of the polymerization of liquid-crystal compounds (polymerism nematic liquid crystal compound) or for controlling the polymerization inhibitor of polymerization.For This photosensitizing agent or polymerization inhibitor are identical with illustrated by above-mentioned polarization photosphere formation compositions.Further, with above-mentioned polarized light Layer formation is same by compositions, and this phase separation layer formation compositions also can contain levelling agent.

Above-mentioned phase separation layer formation compositions, point based on its mobility, preferably comprise solvent, the most organic molten Agent.The kind of the polymerism nematic liquid crystal compound that this organic solvent can be used according to this phase separation layer formation compositions And amount etc. suitably selects, methanol, ethanol, ethylene glycol, isopropanol, propylene glycol, Ethylene Glycol Methyl specifically can be enumerated The alcohols solvent such as ether, ethylene glycol butyl ether；Ethyl acetate, butyl acetate, Ethylene glycol methyl ether acetas, gamma-butyrolacton, the third two The ester solvents such as alcohol methylether acetate, ethyl lactate；Acetone, methyl ethyl ketone, Ketocyclopentane, Ketohexamethylene, 2-heptanone, methyl tert-butyl The ketone solvents such as base ketone；Pentane, hexane, heptane Deng Fei chloro fat race hydrocarbon solvent；The non-chlorinated aromatic such as toluene, dimethylbenzene, phenol Race's hydrocarbon solvent；The nitrile solvents such as acetonitrile；The ether solvents such as propylene glycol monomethyl ether, oxolane, dimethoxy-ethane；Chloroform, chlorobenzene Deng chlorinated hydrocarbon solvent；Phenol etc..These organic solvents can be used alone or multiple combination uses.In particular it is preferred to alcohols solvent, Ester solvent, ketone solvent, non-chloro fat race hydrocarbon solvent and non-chlorinated aromatic hydrocarbon solvent.

When using organic solvent in above-mentioned phase separation layer formation compositions, its content is relative to polymerism nematic liquid crystal Compound 100 mass parts, is 10～10,000 mass parts, preferably 100～5,000 mass parts.Above-mentioned phase separation layer is formed By the viscosity of compositions, thickness based on the phase separation layer formed is difficult to become uneven point, is 0.1～10mPa s, excellent Select 0.1～7mPa s.Therefore, refer to be allowed to that there is so suitable viscosity, determine that above-mentioned phase separation layer formation is combined The kind of the organic solvent used in thing and amount (content).

Additionally, the solid component concentration in above-mentioned phase separation layer formation compositions, in the scope of 2～50 mass %, excellent Select the scope of 5～50 mass %.When solid component concentration is more than 2 mass %, phase separation layer will not become too thin, it is easy to obtains Must have as the phase separation layer of birefringence necessary to the optical compensation of the liquid crystal panel of liquid crystal indicator.If additionally, Solid component concentration is below 50 mass %, then the viscosity of this phase separation layer formation compositions will not become too small, due to tool There is above-mentioned suitable viscosity, thus the thickness with phase separation layer is not likely to produce uneven tendency.Separately, solid constituent refers to, Composition after above-mentioned phase separation layer formation compositions eliminates the volatile ingredients such as organic solvent.

Above-mentioned phase separation layer is used for being transformed to rectilinearly polarized light circularly polarized light or elliptically polarized light, or in turn will circle Polarized light or elliptically polarized light are transformed to rectilinearly polarized light.

Above-mentioned phase separation layer is by by the polymerism nematic liquid crystal chemical combination contained by above-mentioned phase separation layer formation compositions Thing is polymerized and obtains.

In the light redirecting layer formed by this aligning agent for liquid crystal, by coating, it is dried above-mentioned phase separation layer formation combination Thing, can obtain unpolymerized film (phase separation layer formation dry coationg).Separately, the coating process related to or drying means with by State polarization photosphere formation coated film, it is thus achieved that phase illustrated in the method for polarization photosphere formation coated film and dry coationg With.

After making the polymerism nematic liquid crystal in unpolymerized film become nematic liquid crystal state, via phase contrast obtained by polymerization Layer demonstrates birefringence by single domain orientation.

By suitably adjusting solid component concentration and the content of organic solvent of above-mentioned phase separation layer formation compositions, with And the coating weight that this phase separation layer formation compositions is on support base material, the thickness of phase separation layer can be controlled.When above-mentioned phase place The content one of difference polymerism nematic liquid crystal compound contained by layer is formationed compositions regularly, due to the phase separation layer of gained Phase difference value (postponing (Retardation) value, Re (λ)) is determined by formula (7), therefore in order to obtain desired Re (λ), regulates thickness D and Δ n (λ).

Re (λ)=d × Δ n (λ) (7)

(in formula, Re (λ) represents phase difference value during wavelength X nm, and d represents thickness, double when Δ n (λ) represents wavelength X nm Refractive index.)

For the method making the polymerism nematic liquid crystal compound polymerization in unpolymerized film, according to this polymerism nematic liquid crystal The kind of compound suitably determines.When this polymerism nematic liquid crystal compound contains optical polymerism group as polymerism During group, use light polymerization method, when this polymerizable group is thermal polymerization group, use thermal polymerization.According to light polymerization method, This polymerism nematic liquid crystal compound polymerization can be made at low temperatures, the point wide based on the thermostability selecting range supporting base material and work Point easily fabricated in industry, is preferably used the polymerism nematic liquid crystal compound of the polymerizable group with optical polymerism.Additionally, From the viewpoint of film property, it is also preferred that photopolymerization.

The polyreaction that light polymerization method relates to, is carried out by unpolymerized film is irradiated visible ray, ultraviolet light or laser.Base In easily operated point, particularly preferred ultraviolet light.It can be to carry out at a temperature of liquid crystalline phase at the compound of the present invention that light irradiates.This Time, by masking etc., polymeric membrane can be formed pattern.

Birefringence Δ n (λ) can be made by light exposure during suitably adjustment polymerization, heating-up temperature, heat time heating time Make to obtain desired phase contrast.

Phase separation layer obtained as described above, compared to being obtained the stretched film of phase contrast by the stretching of polymer, its thickness is more Thin.Further by being combined with the light redirecting layer formed by this aligning agent for liquid crystal, can freely control patterning or fast axle The direction of (slow axis).

Further, the transparency of phase separation layer is excellent, the phase separation layer used as various display films Thickness, as it has been described above, different and different according to the phase difference value of blooming, but preferably 0.1～10 μm, photoelastic based on reduction The point of property, more preferably 0.2～5 μm, particularly preferred 0.5～3 μm.

Display birefringence phase separation layer phase difference value 50～500nm degree, preferably 100～300nm.

Such phase separation layer can carry out the same polarized light conversion in broader wavelength domain.Therefore, this phase separation layer The liquid crystal aligning element combined with the light redirecting layer formed by this aligning agent for liquid crystal, can be used for as optical compensation films owning Liquid crystal panel or the FPD such as organic EL in.

Above-mentioned phase separation layer can use as broadband λ/4 plate or λ/2 plate.Use as broadband λ/4 plate or λ/2 plate Time, properly select polymeric content in this phase separation layer, that formed by polymerism nematic liquid crystal compound.? In the case of the plate of λ/4, adjust thickness, make the Re (550) of the liquid crystal aligning element of acquisition be 113～163nm, preferably 135～ 140nm, particularly preferably about about 137.5nm, in the case of the plate of λ/2, adjust thickness, make the liquid crystal aligning element of acquisition Re (550) be 250～300nm, preferably 273～277nm, particularly preferably about about 275nm.

Above-mentioned phase separation layer also is used as VA (Vertical Alingment, vertical orientated) pattern blooming.Making When using for VA pattern blooming, properly select the polymeric phase separation layer formed by polymerism nematic liquid crystal compound In content.Adjust thickness, make the Re (550) of the blooming of acquisition be preferably 40～100nm, more preferably 60～80nm ?.

[embodiment]

The present invention will be described in more detail by the following examples." % " and " part " in example unless otherwise noted, It is quality % and mass parts.

Embodiment 1: the synthesis of compound (M1-1-1)

Compound (1-1-1) is synthesized by following flow process.

[synthesis of compound (a1-1-1)]

Ferulic acid 50g (258mmo1) is dissolved in methanol 360g.In the solution of gained, at room temperature add 10g sulfur Acid, is warming up to after solvent starts backflow, in the lower reaction of backflow 2 hours.Will obtain reaction solution cooling after, add 150g ice and 150g water.Decant removes the supernatant, and the water 150g of addition 5 DEG C is allowed to crystallize further.Filter the white crystal obtained, incited somebody to action After the white crystal of filter is cleaned with 1M sodium bicarbonate aqueous solution and water further, be vacuum dried, it is thus achieved that compound (a1- 1-1)22.2g.Productivity, on the basis of ferulic acid, is 83%.

[synthesis of compound (b1-1-1)]

Compound (a1-1-1) 25g (120mmol) is dissolved in dimethyl acetylamide 250g.Add in the solution obtained Enter potassium carbonate 33.19g (240mmol) and potassium iodide 1.99g (12mmol).6-Mecoral, room is dripped in the dispersion liquid obtained After the lower stirring of temperature 1 hour, stir 8 hours at 70 DEG C.Filter the reaction solution obtained to remove insoluble matter.Add in filtrate Methyl iso-butyl ketone (MIBK) 200g and water 300g is stirred, and stands, and reclaims organic layer after separatory.Water is added in the organic layer reclaimed 200g, stirs, stands and separatory, repeats this water washing operations 2 times.Organic from reclaim by using the decompression of vaporizer to distill Solvent is removed, it is thus achieved that the thick product of compound (b1-1-1) in Ceng.

[synthesis of compound (c1-1-1)]

The thick product of above-claimed cpd (b1-1-1) is fully dissolved in ethanol 185g.Water is added in the solution obtained 92g and sodium hydroxide 14.41g (360mmol), stirs 1 hour at 80 DEG C.After reaction solution is cooled to about 3 DEG C, keep While temperature is below 5 DEG C, adding 2M aqueous hydrochloric acid solution, making pH is 2.Filtration is collected acid out and is gone out to obtain white precipitate, further Clean 2 times with the mixed solution of water 100g and methanol 80g, be vacuum dried, it is thus achieved that compound (c1-1-1) 30.4g.Productivity On the basis of compound (a1-1-1), it is 86%.

[synthesis of compound (M1-1-1)]

Compound (c1-1-1) 27.46g (93mmol) is dissolved in chloroform 280g.Conduct is added in the solution obtained BHT (di-t-butyl-hydroxy-methylbenzene) 2.06g, triethylamine 37.73g (373mmol) of polymerization inhibitor, stirs under ice cooling Mix.In reaction solution drip methacrylic chloride 29.26g (260mmol), keep 5 DEG C stirred below 5 hours.To obtain Reaction solution adds dimethyl aminopyridine 5.7g and water 190g, at room temperature stirring 12 hours.After standing, reclaim organic Layer, adds 2N aqueous hydrochloric acid solution 100g in this organic layer, stirs, stands and separatory, repeat this cleaning operation 2 times.Recovery has Machine layer, adds normal heptane 300g, filters the crystal collecting precipitation.2 are cleaned with the mixed solvent being made up of water 100g and methanol 80g After secondary, it is vacuum dried, it is thus achieved that compound (M1-1-1) 22.0g.Productivity, on the basis of compound (c1-1-1), is 65%.

[synthesis (other method) of compound (M1-1-1)]

Compound (c1-1-1) 27.46g (93mmol) is dissolved in chloroform 280g.Conduct is added in the solution obtained BHT (di-t-butyl-hydroxy-methylbenzene) 8.00g, p-methyl benzenesulfonic acid 11.16g and methacrylic acid 44.63g of polymerization inhibitor, passes through While azeotropic dehydration removes water, it is allowed to react 8 hours.After reaction solution is cooled to less than 5 DEG C, add water 200g, stir, Organic layer is reclaimed after standing, separatory.Dimethyl aminopyridine 5.7g and water 190g is added, at room temperature in the organic layer obtained Stir 12 hours.Reclaim the organic layer of the reactant liquor obtained, this organic layer 2N aqueous hydrochloric acid solution 100g is cleaned 2 times.Reclaim Organic layer, adds normal heptane 300g, filters the crystal collecting precipitation.Wash with the mixed solvent being made up of water 100g and methanol 80g After clean 2 times, it is vacuum dried, it is thus achieved that compound (M1-1-1) 18.3g.Productivity, on the basis of compound (c1-1-1), is 54%.

Embodiment 2 (there is the manufacture of the polymer of photoreactive group)

The polymer by above-claimed cpd (M1-1-1) manufacture with photoreactive group is performed as follows.

Compound (M1-1-1) 1.00g (2.76mmol) and the oxolane of 10g is added in Shu Lunke pipe, after deoxidation, Add azodiisobutyronitrile (AIBN) 2.27mg while circulation nitrogen, stir 72 hours under 60 ° of C.The reaction solution that will obtain Add in toluene 200g.Leaching precipitate, after cleaning with heptane, obtains the polymer 1 of 0.75g by vacuum drying.Productivity with It is 75% on the basis of compound (M1-1-1).Measured by GPC, it is thus achieved that the molecular weight of polymer with polystyrene as standard, Demonstrating number-average molecular weight 28200, Mw/Mn1.82, content of monomer is 0.5%.

Using this polymer as polymer (1-1-1).

Separately, the gpc analysis of the number-average molecular weight with polystyrene as standard of polymer (1-1-1) is tried to achieve, by following bar Part is measured.

Device: HLC-8220GPC (ソ mono-(strain) system)

Guard column: TSKguardcolumn MP (XL) (trade name)

Chromatographic column: TSK-gel MultiporeH_XL-M (trade name)

TSK-gel MultiporeH_XL-M (trade name)

(above-mentioned Coupled columns is connected.)

Chromatogram column temperature: 40 ° of C

Solvent: THF

Flow velocity: 1.0mL/min

Injection rate: 50 μ L

Detector: IR, UV

Mensuration test portion concentration: 0.6 mass % (solvent: THF)

Correction standard substance: TSK STANDARD POLYSTYRENE

A-500、A-1000、A-2500、A-5000、

F-1、F-2、F-4、F-10、F-20、F-40、

F-80, F-128, F-288, F-380

(trade name, ソ mono-(strain) make)

Embodiment 3: the manufacture of photoreactivity aligning agent for liquid crystal

Polymer (1-1-1) is dissolved in Ketocyclopentane so that it is concentration is 5 mass %, makes photoreactivity liquid crystal aligning Agent.

Evaluation Example 1

(preparation of polarization photosphere formation compositions)

Mixing following compositions, stirs 1 hour at 80 DEG C, is derived from polymerizable liquid crystal compound.

Polymerizable liquid crystal compound: compound (3-1-6) 75 parts

Compound (3-1-7) 25 parts

Dichromatic pigment: azopigment (G205: woods protobiochemistry research is made) 3.0 parts

Polymerization initiator: 1-hydroxycyclohexylphenylketone (イ Le ガキユア 184: チバスペシヤ Le テイケミカ Le ズ society system) 6 parts

Levelling agent: polyacrylic acid ester compounds (BYK-361N:BYK-Chemie society system) 1.5 parts

Solvent: Ketocyclopentane 250 parts

(mensuration of phase transition temperature)

Use micropolariscope, confirm phase transition temperature by observation structure (テ Network スチヤ mono-).By polarized light After layer polymerizable liquid crystal compound contained by formation compositions is warming up to 120 DEG C of removing solvent seasonings, in the process of cooling In, confirming phase in version at 110 DEG C is nematic phase, and at 104 DEG C, phase in version is smectic C, and at 83 DEG C, phase in version is smectic B.

(making of light redirecting layer)

The photoreactivity aligning agent for liquid crystal that will be obtained in embodiment 3 by stick coating method, coats poly terephthalic acid second two On alcohol ester substrate (pet substrate), after being dried 1 minute at 60 DEG C, form the dry coationg of thickness 100nm.Then, to acquisition The surface of dry coationg is implemented polarized light UV treatment with irradiation and is formed light redirecting layer.Polarized light UV processes and uses UV irradiation unit (SPOT CURE SP-7: ウシオ Electric Co., Ltd system), the intensity measured under the wavelength 365nm condition as 100mJ is entered OK.

(making of polarization photosphere)

On optical alignment film, it is coated with polarization photosphere formation compositions by stick coating method, heats with the drying ovens of 120 DEG C After being dried 1 minute, it is cooled to room temperature.Use UV irradiation unit (SPOT CURE SP-7: ウシオ Electric Co., Ltd system), right Layer irradiation exposure amount 1200mJ/cm formed by compositions is formed by polarization photosphere²The ultraviolet of (365nm benchmark), thus shape Become polarization photosphere, make liquid crystal aligning element.Measured by laser microscope (オリ Application パス Co., Ltd. society OLS3000) The thickness of polarization photosphere now, it is 1.6 μm.

(X-ray diffraction mensuration)

The polarization photosphere obtained use X-ray diffraction device X ' Pert PRO MPD (スペ Network トリス Co., Ltd. system) enter Row X-ray diffraction measures.Cu will be used to lead to as target, the x-ray produced under conditions of x-ray tube current 40mA, X-ray tube voltage 45kV Cross fixing divergent slit 1/2 ° incident along friction (ラ PVC Application グ) direction, with sweep limits 2 θ=4.0～the scope of 40.0 °, step Wide 2 θ=0.01671 ° are scanned, and the result of mensuration is, obtain half-peak breadth (FWHM)=about near 2 θ=20.22 ° The sharp-pointed diffraction maximum (bragg peak) of 0.187 °.Additionally, have also been obtained identical result from being perpendicular to frictional direction incidence.By The position at peak is asked and is obtained lattice period (order cycle) (d) aboutUnderstand and define the knot reflecting high dimension smectic phase Structure.

(mensuration of dichroic ratio)

Use the support being provided with the subsidiary polarizer on spectrophotometer (Shimadzu Corporation UV-3150) Device, by dijection collimation method measure maximum absorption wavelength penetrating axial absorbance (A¹) and absorb axial extinction Degree (A²).The reference side of this support is provided with the mesh screen (メ Star シユ) that light quantity reduces 50%.From the penetrating shaft direction measured Absorbance (A¹) and absorb axial absorbance (A²) value, calculate than (A²/A¹), as dichroic ratio.The results are shown in Table.Two Color ratio is the highest, the most useful as polarization photosphere.The measurement result of dichroic ratio is shown in Table 1.

(observation of state of orientation)

The state of orientation that acquisition polarizes photosphere is confirmed by polarized light microscope observing.At micropolariscope Between crossed nicols, sample is inserted in the direction along about 45 °, observes when light leak.When being vertically orientated Time, do not produce light leak, it was observed that dark ground state, when in horizontal alignment, produce light leak, it was observed that bright visual field state.Draw Face entirety obtains being designated as "○" during bright field, picture entirety obtains being designated as "×" during dark ground, is evaluated with these 2 levels. The results are shown in Table 1.

(mensuration of Haze value)

For the polarizer obtained, haze measurement instrument (HZ-2: スガ testing machine (strain) system) is used to measure haze value.Mist degree Value is shown below.

Haze value (%)=scattering transmitance (%)/total light transmittance (%) × 100

If according to the anchorage force to polarization photosphere of light redirecting layer insufficient if, as main constituent poly-of polarization photosphere Conjunction property smectic liquid crystal can produce the defect of discontinuity.Owing to producing light scattering, haze value at the interface of this discontinuity defect Can become big.That is, haze value the least expression orientation is the best.This sentences less than 3% is good.The results are shown in Table 1.

Evaluation Example 2

Dichromatic pigment is changed to azopigment by azopigment (G205: woods protobiochemistry research is made) (NKX2029: woods protobiochemistry research is made), in addition, identical with evaluation Example 1 makes liquid crystal aligning element.

(mensuration of phase transition temperature)

With evaluation Example 1, the polarization of evaluation of measuring example 2 polymerizable liquid crystal compound contained by photosphere formation compositions Phase in version situation.After being warming up to 120 DEG C of removing solvent seasonings, during cooling, confirming phase in version at 113 DEG C is nematic Phase, at 107 DEG C, phase in version is smectic C, and at 83 DEG C, phase in version is smectic B.

With evaluation Example 1, the liquid crystal aligning element made is carried out dichroic ratio mensuration, state of orientation observation, haze value mensuration.

It the results are shown in Table 1.

Evaluation Example 3

By the polymerizable liquid crystal compound contained by polarization photosphere formation compositions, by compound (3-1-6) 75 parts and The mixture of compound (3-1-7) 25 parts is changed to compound (3-1-6) 75 parts and the mixture of compound (3-1-8) 25 parts, In addition, liquid crystal aligning element is prepared with evaluation Example 1.

(mensuration of phase transition temperature)

With evaluation Example 1, the polarization of evaluation of measuring example 3 polymerizable liquid crystal compound contained by photosphere formation compositions Phase in version situation.After being warming up to 120 DEG C of removing solvent seasonings, during cooling, confirming phase in version at 111 DEG C is nematic Phase, at 105 DEG C, phase in version is smectic C, and at 82 DEG C, phase in version is smectic B.

It the results are shown in Table 1.

Evaluation Example 4

By the polymerizable liquid crystal compound contained by polarization photosphere formation compositions, by compound (3-1-6) 75 parts and The mixture of compound (3-1-7) 25 parts is changed to compound (3-1-6) 75 parts and the mixture of compound (3-1-13) 25 parts, In addition, liquid crystal aligning element is prepared with evaluation Example 1.

(mensuration of phase transition temperature)

With evaluation Example 1, the polarization of evaluation of measuring example 4 polymerizable liquid crystal compound contained by photosphere formation compositions Phase in version situation.After being warming up to 130 DEG C of removing solvent seasonings, during cooling, confirming phase in version at 119 DEG C is nematic Phase, at 111 DEG C, phase in version is smectic C, and at 82 DEG C, phase in version is smectic B.

It the results are shown in Table 1.

Evaluation Example 5

By the polymerizable liquid crystal compound contained by polarization photosphere formation compositions, by compound (3-1-6) 75 parts and The mixture of compound (3-1-7) 25 parts is changed to compound (3-1-6) 75 parts and the mixture of compound (3-1-14) 25 parts, In addition, liquid crystal aligning element is prepared with evaluation Example 1.

(mensuration of phase transition temperature)

With evaluation Example 1, the polarization of evaluation of measuring example 5 polymerizable liquid crystal compound contained by photosphere formation compositions Phase in version situation.After being warming up to 130 DEG C of removing solvent seasonings, during cooling, confirming phase in version at 118 DEG C is nematic Phase, at 109 DEG C, phase in version is smectic C, and at 79 DEG C, phase in version is smectic B.

It the results are shown in Table 1.

[table 1]

Evaluation Example 6

Use can be at polymerism nematic liquid crystal compound (such as A1-1, A5-1, A6-of polyvinyl alcohol friction orientation on membranes 1, A7-1, A9-1, A10-1, A11-1, A15-1, A21-1, A25-1, A63-1, A69-1, A70-1, A71-1, A72-1 or A73- 1), substitute the polymerizable liquid crystal (1-6) of evaluation Example 1, (1-7), and do not use dichromatic pigment, be configured to phase separation layer and form use Compositions, coats in the light redirecting layer shown in evaluation Example 1, after being heated up to nematic Phase temperature, by make this polymerism to Row liquid-crystal compounds is polymerized, and can make nematic liquid crystal phase liquid crystal aligning element in light redirecting layer.This liquid crystal aligning element has As the function of phase separation layer, this phase separation layer can make liquid crystalline phase become desired phase contrast by regulation thickness.

Industrial applicability

Photoreactivity aligning agent for liquid crystal according to the present invention, can form use nematic liquid crystal, the liquid crystal aligning of smectic liquid crystal Element (such as polarizes photosphere, phase separation layer).By the photoreactivity aligning agent for liquid crystal of the present invention prepare oriented layer, due to be with Noncontact System forming oriented layer, therefore it is few and can easily carry out the advantage patterned with mask to have dust, surpasses existing logical Cross friction process and obtain oriented layer.

Claims

1. liquid crystal aligning element, has liquid crystal aligning layer and polarization photosphere,

Described liquid crystal aligning layer is to be formed coated film by containing the photoreactivity aligning agent for liquid crystal of polymer shown in formula (1-1), right This coated film carries out polarizing light irradiation and forms,

Described polarization photosphere is by being formed as follows:

On described liquid crystal aligning layer, the coating composition solution containing polymerizable liquid crystal compound obtains coated film,

The described polymerizable liquid crystal compound contained in described coated film is carried out polarizing light irradiation be allowed to be polymerized,

In formula (1-1),

N and m represents 0 or 1 independently of one another,

V and w represents the integer of 1～3 independently of one another,

S¹And S²Represent the alkylidene of the carbon number 1～12 with or without fluorine atom or cyano group independently of one another,

S³Represent the alkyl of the carbon number 1～12 with or without fluorine atom or cyano group,

X¹、X²、X³、X⁴And X⁵Represent singly-bound, oxygen atom, carbonyl acyloxy or methylene independently of one another,

Y¹And Y²Represent singly-bound, oxygen atom or carbonyl acyloxy independently of one another,

R¹And R³Represent hydrogen atom, the alkyl of carbon number 1～4 or the alkoxyl of carbon number 1～4 independently of one another,

R²And R⁴Represent alkoxyl, cyano group or the halogen atom of carbon number 1～2 independently of one another, when v is 2 or 3, exist many Individual R²Identical or different, when w is 2 or 3, there is multiple R⁴It is identical or different,

R⁵、R⁶And R⁷Represent hydrogen atom or methyl independently of one another,

P, q and r represent each construction unit mole fraction relative to general construction unit, and it meets 0.25 ＜ p 1,0 q ＜ The relation of 0.75 and 0 r ＜ 0.75.

Liquid crystal aligning element the most according to claim 1, described polymer is the polymerization that q is 0 in described formula (1-1) Thing.

Liquid crystal aligning element the most according to claim 1, described polymer is the polymerization that r is 0 in described formula (1-1) Thing.

Liquid crystal aligning element the most according to claim 1, described polymer is the R in described formula (1-1)¹And R²The most solely It it is on the spot the polymer of methoxy or ethoxy.

Liquid crystal aligning element the most according to claim 1, described polymer is that n and m in described formula (1-1) is 0 Polymer.

Liquid crystal aligning element the most according to claim 1, described polymerizable liquid crystal compound is to present smectic liquid crystal shape The compound of state.

Liquid crystal aligning element the most according to claim 1, described polymerizable liquid crystal compound is to present high dimension smectic phase The compound of mesomorphic state.

8. liquid crystal aligning element, has liquid crystal aligning layer and inverse wave length dispersion phase separation layer,

Described phase separation layer is by being formed as follows:

In formula (1-1),

N and m represents 0 or 1 independently of one another,

V and w represents the integer of 1～3 independently of one another,

Liquid crystal aligning element the most according to claim 8, described polymer is the polymerization that q is 0 in described formula (1-1) Thing.

Liquid crystal aligning element the most according to claim 8, described polymer is the polymerization that r is 0 in described formula (1-1) Thing.

11. liquid crystal aligning elements according to claim 8, described polymer is the R in described formula (1-1)¹And R²The most solely It it is on the spot the polymer of methoxy or ethoxy.

12. liquid crystal aligning elements according to claim 8, described polymer is that n and m in described formula (1-1) is 0 Polymer.

13. liquid crystal aligning elements according to claim 8, described polymerizable liquid crystal compound is from isotropic phase liquid crystal State directly presents the compound of nematic liquid crystal state.

14. liquid crystal aligning elements according to claim 13, described polymerizable liquid crystal compound by formula (2) Suo Shi,

In formula (2),

Q¹Represent replacement or unsubstituted polycycle aromatic hydrocarbyl or replacement or unsubstituted polycycle aromatic heterocycle,

D¹And D²Represent singly-bound or the linking group of divalent independently of one another,

G¹And G²Represent the ester ring type alkyl of divalent independently of one another, this hydrogen atom contained by ester ring type alkyl by halogen atom, The alkyl of carbon number 1～4, the fluoroalkyl of carbon number 1～4, carbon number 1～4 alkoxyl, cyano group or nitro replace or nothing Replace, constitute-the CH of this ester ring type alkyl₂-replaced or without replacing by-O-,-S-or-NH-,

E¹And E²Represent singly-bound or the linking group of divalent independently of one another,

B¹And B²Represent singly-bound or the linking group of divalent independently of one another,

A¹And A²Represent ester ring type alkyl or the aromatic hydrocarbyl of divalent of divalent, this ester ring type alkyl and this fragrance independently of one another Hydrogen atom contained by race's alkyl is by halogen atom, the alkyl of carbon number 1～4, carbon number 1～4 alkoxyl, cyano group or nitre Base replaces or unsubstituted, and the hydrogen atom contained by the alkyl of this carbon number 1～4 and this carbon number 1～4 alkoxyl is former by fluorine Son replaces or replaces,

K and l represents the integer of 0～3 independently of one another, when k is more than 2, there is multiple A¹It is the most identical or different, There is multiple B¹The most identical or different, when l is more than 2, there is multiple A²The most identical or different, deposit At multiple B²It is the most identical or different,

F¹And F²Representing the alkylidene of carbon number 1～12 independently of one another, the hydrogen atom contained by this alkylidene is by carbon number The alkoxy or halogen atom of 1～5 replaces or unsubstituted, constitutes-the CH of this alkylidene₂-replaced or without replacing by-O-or-CO- Change,

P¹And P²Represent hydrogen atom, acryloxy or methacryloxy independently of one another, but P¹And P²It is asynchronously that hydrogen is former Son.