WO2022118951A1

WO2022118951A1 - Compound, polymerizable composition, optically anisotropic film, optical film, polarizing plate, and image display device

Info

Publication number: WO2022118951A1
Application number: PCT/JP2021/044450
Authority: WO
Inventors: 愛子吉田; 晃逸佐々木; 友樹平井; 慎一森嶌; 翔井本
Original assignee: 富士フイルム株式会社
Priority date: 2020-12-04
Filing date: 2021-12-03
Publication date: 2022-06-09
Also published as: JPWO2022118951A1

Abstract

The present invention addresses the problem of providing: a compound to be used in forming an optically anisotropic film having excellent reverse wavelength dispersion properties; a polymerizable composition; an optically anisotropic film; an optical film; a polarizing plate; and an image display device. A compound according to the present invention is represented by formula (1).

Description

Compounds, polymerizable compositions, optically anisotropic films, optical films, polarizing plates and image display devices

The present invention relates to a compound, a polymerizable composition, an optically anisotropic film, an optical film, a polarizing plate, and an image display device.

The polymerizable compound exhibiting reverse wavelength dispersibility has features such as the ability to accurately convert the light wavelength over a wide wavelength range and the ability to thin the retardation film due to its high refractive index. Because of this, it is being actively researched.
Further, as a polymerizable compound exhibiting reverse wavelength dispersibility, a T-type molecular design guideline is generally taken, the wavelength of the major axis of the molecule is shortened, and the wavelength of the minor axis located at the center of the molecule is lengthened. Is required to do.
For example, Patent Document 1 describes a polymerizable liquid crystal compound represented by the following formula (a) ([Claim 1]).

Japanese Unexamined Patent Publication No. 2018-087152

As a result of examining the polymerizable liquid crystal compound described in Patent Document 1, the present inventors have a problem that the inverse wavelength dispersibility of the formed optically anisotropic film is insufficient depending on the structure of the compound. Was clarified.

Therefore, the present invention provides a compound, a polymerizable composition, an optically anisotropic film, an optical film, a polarizing plate, and an image display device used for forming an optically anisotropic film having excellent reverse wavelength dispersibility. Make it an issue.

As a result of diligent studies to achieve the above problems, the present inventors use a compound having 2 to 4 groups represented by a predetermined structural formula in the short-axis skeleton (core) located at the center of the molecule. As a result, it was found that the inverse wavelength dispersibility of the formed optically anisotropic film was improved, and the present invention was completed.
That is, it was found that the above problem can be achieved by the following configuration.

[1] A compound represented by the formula (1) described later.
[2] C in the formula (1) described later represents a group represented by the formula (C-3) described later.
In the formula (C-3) described later, x represents 0, X ² represents O or S, and Y ¹ and -C (= C)-(G) x-C (= X ² )- The compound according to [1], wherein the constituent ring structure is a 5-membered ring or a 6-membered ring, which is a carbon ring or a heterocycle.
However, the carbocycle or the heterocycle may have a substituent and may form a fused ring with another 4- to 7-membered ring.
[3] C in the formula (1) described later represents a group represented by the formula (C-4) described later.
The compound according to [1], wherein X ³ in the formula (C-4) described later represents O, R ¹ and R ² represent an alkyl group, and R ³ and R ⁴ represent a hydrogen atom.
[4] The partial structure represented by the formula (1-1) described later in the formula (1) described later is a structure represented by the formula (1-1a) described later or the formula (1-1b) described later. A compound according to any one of [1] to [3].
[5] The compound according to any one of [1] to [4], wherein A ¹ and A ² in the formula (1) described later represent a trans-cyclohexane-1,4-diyl group.
[6] Z ¹ in the formula (R-1) described later represents a polymerizable group.
Any of [1] to [5], wherein the polymerizable group represents any polymerizable group selected from the group consisting of groups represented by the formulas (P-1) to (P-20) described later. The compound described in.
[7] The compound according to [6], wherein the polymerizable group is a group represented by the formula (P-1) or (P-2) described later.
[8] The compound according to any one of [1] to [7], wherein m1 and m2 in the formula (1) described later independently represent an integer of 0 to 1.
[9] A polymerizable composition containing the compound according to any one of [1] to [8].
[10] An optically anisotropic film obtained by polymerizing the polymerizable composition according to [9].
[11] An optical film having the optically anisotropic film according to [10].
[12] A polarizing plate having the optical film according to [11] and a polarizing element.
[13] An image display device having the optical film according to [11] or the polarizing plate according to [12].

According to the present invention, it is possible to provide a compound, a polymerizable composition, an optically anisotropic film, an optical film, a polarizing plate, and an image display device used for forming an optically anisotropic film having excellent reverse wavelength dispersibility. can.

FIG. 1A is a schematic cross-sectional view showing an example of the optical film of the present invention. FIG. 1B is a schematic cross-sectional view showing an example of the optical film of the present invention. FIG. 1C is a schematic cross-sectional view showing an example of the optical film of the present invention.

Hereinafter, the present invention will be described in detail.
The description of the constituent elements described below may be based on the representative embodiments of the present invention, but the present invention is not limited to such embodiments.
In the present specification, the numerical range represented by using "-" means a range including the numerical values before and after "-" as the lower limit value and the upper limit value.

Further, in the present specification, as each component, a substance corresponding to each component may be used alone or in combination of two or more. Here, when two or more kinds of substances are used in combination for each component, the content of the component means the total content of the substances used in combination unless otherwise specified.
Further, in the present specification, "(meth) acrylate" is a notation representing "acrylate" or "methacrylate", and "(meth) acrylic" is a notation representing "acrylic" or "methacrylic". "(Meta) acrylic" is a notation representing "acryloyl" or "methacrylic acid".
Further, the bonding direction of the divalent group (for example, -O-CO-) described in the present specification is not particularly limited, and for example, L ² is-in the bonding of "L ¹ -L ² -L ³ ". In the case of O-CO-, if the position bonded to the L ¹ side is * 1 and the position bonded to the L ³ side is * 2, L ² is * 1-O-CO- * 2. It may be * 1-CO-O- * 2.

Further, in the present specification, "may have a substituent" includes not only an embodiment having no substituent but also an embodiment having one or more substituents.
Here, the substituent includes, for example, the substituent E described below.
<Substituent E>
Examples of the substituent E include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a pentafluorosulfuranyl group, a nitro group, a cyano group, an isocyano group, an amino group, a hydroxyl group, a mercapto group, a methylamino group and a dimethyl group. Examples thereof include an amino group, a diethylamino group, a diisopropylamino group, a trimethylsilyl group, a dimethylsilyl group, a thioisocyanogroup, and a linear or branched alkyl group having 1 to 20 carbon atoms which may be substituted by these. However, one -CH _2- or two or more non-adjacent -CH _2- constituting the above alkyl group are independently -O-, -S-, -CO-, -COO-, respectively. -OCO-, -CO-S-, -S-CO-, -O-CO-O-, -CO-NH-, -NH-CO-, -CH = CH-COO-, -CH = CH-OCO -, -COO-CH = CH-, -OCO-CH = CH-, -CH = CH-, -CF = CF-, or -C≡C- may be substituted.
Further, as the substituent ^E , for example, a group represented by −LE −R ^{spE −ZE} ^can be mentioned.
Here, LE is -O-, -S-, -OCH _2- , -CH ₂ O-, -CH ₂ CH _2- , -CO-, -COO-, ^-OCO- , -CO-S-. , -S-CO-, -O-CO-O-, -CO-NH-, -NH-CO-, -OCO-NH-, -NH-COO-, -NH-CO-NH-, -NH- O-, -O-NH-, -SCH _{2-, -CH 2 S-, -CF 2 O-, -OCF 2-, -CF 2 S-, -SCF 2-} _, _-CH ₌ _CH _- COO-, -CH = CH-OCO-, -COO-CH = CH-, -OCO-CH = CH-, -COO-CH ₂ CH _2- , -OCO-CH ₂ CH _2- , -CH ₂ CH ₂ -COO- , -CH ₂ CH ₂ -OCO-, -COO-CH _2- , -OCO-CH _2- , -CH ₂ -COO-, -CH ₂ -OCO-, -CH = CH-, -N = N-, -CH = N-, -N = CH-, -CH = NN = CH-, -CF = CF-, -C≡C-, or a single bond.
R ^spE represents an alkylene group having 1 to 20 carbon atoms or a single bond. However, one -CH _2- or two or more non-adjacent -CH _2- constituting the above-mentioned alkylene group independently have -O-, -COO-, -OCO-, and -OCO-O, respectively. -, -CO-NH-, -NH-CO-, -CH = CH-, or -C≡C- may be substituted.
^ZE represents a hydrogen atom or a polymerizable group.
When a plurality of such substituents E are contained in the compound, the plurality of substituents E may be the same or different from each other.

[Compound]
The compound of the present invention is a compound represented by the formula (1) described later (hereinafter, also abbreviated as “specific compound”).

In the present invention, as described above, by using the specific compound, the inverse wavelength dispersibility of the formed optically anisotropic film is improved.
This is not clear in detail, but the present inventors speculate as follows.
That is, as the group (C) to which the specific compound binds to A ^core in the formula (1) described later, 2 to 2 to the group represented by any of the formulas (C-1) to (C-4) described later. It is considered that the reverse wavelength dispersibility was improved by having four of them, and as a result, the reverse wavelength dispersibility of the formed optically anisotropic film was improved.
Hereinafter, the specific compound of the present invention will be described in detail.

[Specific compound]
The specific compound is a compound represented by the following formula (1).

C in the above formula (1) represents a group represented by any of the following formulas (C-1) to (C-4). In the following formulas (C-1) to (C-4), * represents a binding position with A ^core .

<Equation (C-1)>
In the above formula (C-1), M represents -CH = CH-, -N = CH-, -CH = N-, or -N = N-. Of these, it is preferable that -CH = CH-.

In the above formula (C-1), D is a group represented by any of the following formulas (D-1) to (D10) which may have a substituent (for example, the above-mentioned substituent E or the like). Represents. In the following formulas (D-1) to (D-10), * represents the bonding position with M.

In the above formulas (D-2), (D-3), (D-6), (D-8) and (D ^- 9), D1 is -O-, -S-, or -NR ^D1 . Representing −, ^RD1 may have a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkanoyl group having 1 to 5 carbon atoms, or a substituent (for example, the above-mentioned substituent E). Represents phenyl.

In the above formula (D-10), R ^d1 and R ^d2 each independently represent an alkyl group having 1 to 20 carbon atoms which may have a substituent (for example, the above-mentioned substituent E or the like). However, one -CH _2- or two or more non-adjacent -CH _2- constituting the alkyl group independently have -O-, -S-, -CO-, -COO-, and-, respectively. OCO-, -CO-S-, -S-CO-, -SO _2- , -O-CO-O-, -CO-NH-, -NH-CO-, -CH = CH-COO-, -CH It may be replaced with = CH-OCO-, -COO-CH = CH-, -OCO-CH = CH-, -CH = CH-, -CF = CF-, or -C≡C-.
Further, R ^d1 and R ^d2 may be bonded to each other to form a non-aromatic hydrocarbon ring having a 3- to 7-membered ring, and the non-aromatic hydrocarbon ring is a substituent (for example, the above-mentioned substituent E). Etc.), and the carbon atom constituting the non-aromatic hydrocarbon ring may be substituted with a heteroatom.

As described above, the groups represented by the above formulas (D-1) to (D-10) may have a substituent (for example, the above-mentioned substituent E or the like), and specifically, the group may have a substituent (eg, the above-mentioned substituent E). The hydrogen atom bonded to the carbon atom constituting the ring structure in the above formulas (D-1) to (D-10) is a fluorine atom, a chlorine atom, a cyano group, a trifluoroacetyl group, a trifluoromethyl group, and the like. A phenyl group which may have a substituent (for example, the above-mentioned substituent E), an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkoxycarbonyl group having 1 to 5 carbon atoms, or , May be substituted with an alkanoyl group having 1 to 5 carbon atoms.

Further, -CH = constituting the ring structure in the above formulas (D-1) to (D-10) may be replaced with -N =. However, at least one -CH = constituting the ring structure in the above formulas (D-1) and (D-5) is replaced with -N =.

In the present invention, D in the above formula (C-1) is the above formula (D-6) and (D-) because the inverse wavelength dispersibility of the formed light absorption anisotropic film becomes better. 8) It is preferable that the group is represented by any of (D-10), and for the reason that the liquid crystal property of the specific compound is improved, any of the above formulas (D-6) and (D-10) can be used. It is more preferably the group represented.

<Equation (C-2)>
In the above formula (C-2), J ¹ represents a hydrogen atom or an alkyl group.
Further, B ¹ represents -C (= X ¹ ) -B ¹¹ or -CN. However, B ¹¹ represents a substituent, X ¹ represents = O, = S, = NR, or = C (CN) ₂ , and R represents a substituent.
Further, B ² represents a hydrogen atom or a substituent.

J ¹ in the above formula (C-2) is preferably a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and is preferably a hydrogen atom, a methyl group, an ethyl group, a propyl group, or an isopropyl group. It is more preferable to have a hydrogen atom or a methyl group.

In the substituent which is one aspect of B ² in the above formula (C-2) and "-C (= X ¹ ) -B ¹¹ " which is one aspect of B ¹ in the above formula (C-2). As the substituent represented by B ¹¹ of the above, for example, the following can be mentioned.
Substituent or unsubstituted linear, branched or cyclic alkyl groups with 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec. -Butyl, t-butyl, cyclohexyl, methoxyethyl, ethoxycarbonylethyl, cyanoethyl, diethylaminoethyl, hydroxyethyl, chloroethyl, acetoxyethyl, trifluoromethyl, etc.);
An alkenyl group having 2 to 18 carbon atoms (preferably 2 to 8 carbon atoms) (eg, vinyl, etc.); an alkynyl group having 2 to 18 carbon atoms (preferably 2 to 8 carbon atoms) (eg, ethynyl, etc.);
Substituent or unsubstituted aryl group having 6 to 18 carbon atoms (preferably 6 to 10 carbon atoms) (eg, phenyl, 4-methylphenol, 4-methoxyphenyl, 4-carboxyphenyl, 3,5-dicarboxyphenyl, etc.) ;
Substituted or unsubstituted aralkyl groups having 7 to 18 carbon atoms (preferably 7 to 12 carbon atoms) (eg, benzyl, carboxybenzyl, etc.);
Substituent or unsubstituted acyl groups having 2 to 18 carbon atoms (preferably 2 to 8 carbon atoms) (eg, acetyl, propionyl, butanoyl, chloroacetyl, etc.);
Substituent or unsubstituted alkyl or arylsulfonyl groups having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, methanesulfonyl, p-toluenesulfonyl, etc.);
Alkoxycarbonyl group having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, methanesulfinyl, ethanesulfinyl, octansulfinyl, etc.); alkoxycarbonyl group having 2 to 18 carbon atoms (preferably 2 to 8 carbon atoms). (Eg, methoxycarbonyl, ethoxycarbonyl, etc.);
Aryloxycarbonyl groups having 7 to 18 carbon atoms (preferably 7 to 12 carbon atoms) (eg, phenoxycarbonyl, 4-methylphenoxycarbonyl, 4-methoxyphenylcarbonyl, etc.);
Substituent or unsubstituted alkoxy group having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, methoxy, ethoxy, n-butoxy, methoxyethoxy, etc.); 6 to 18 carbon atoms (preferably 6 to 6 carbon atoms). 10) Substituted or unsubstituted aryloxy group (eg, phenoxy, 4-methoxyphenoxy, etc.);
Alkylthio groups having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, methylthio, ethylthio, etc.);
An arylthio group having 6 to 10 carbon atoms (preferably 1 to 8 carbon atoms) (eg, phenylthio, etc.);
Substituent or unsubstituted acyloxy groups having 2 to 18 carbon atoms (preferably 2 to 8 carbon atoms) (eg, acetoxy, ethylcarbonyloxy, cyclohexylcarbonylxy, benzoyloxy, chloroacetyloxy, etc.);
Substituted or unsubstituted sulfonyloxy groups having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, methanesulfonyloxy, etc.);
Substituted or unsubstituted carbamoyloxy groups having 2 to 18 carbon atoms (preferably 2 to 8 carbon atoms) (eg, methylcarbamoyloxy, diethylcarbamoyloxy, etc.);
An unsubstituted amino group or a substituted amino group having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, methylamino, dimethylamino, diethylamino, anirino, methoxyphenylamino, chlorophenylamino, pyridylamino, methoxycarbonylamino) , N-butoxycarbonylamino, phenoxycarbonylamino, methylcarbamoylamino, phenylcarbamoylamino, ethylthiocarbamoylamino, methylsulfamoylamino, phenylsulfamoylamino, acetylamino, ethylcarbonylamino, ethylthiocarbonylamino, cyclohexylcarbonyl Amino, benzoylamino, chloroacetylamino, methanesulfonylamino, benzenesulfonylamino, etc.);
Amide groups having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, acetamide, acetylmethylamide, acetyloctylamide, etc.);
Substituent or unsubstituted ureido groups having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, unsubstituted ureido, methyl ureido, ethyl ureido, dimethyl ureido, etc.);
Substituent or unsubstituted carbamoyl groups having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, unsubstituted carbamoyl, methylcarbamoyl, ethylcarbamoyl, n-butylcarbamoyl, t-butylcarbamoyl, dimethylcarbamoyl, morpholino) Carbamoyl, pyrrolidinocarbamoyl, etc.);
An unsubstituted sulfamoyl group or a substituted sulfamoyl group having 1 to 18 carbon atoms (preferably 1 to 8 carbon atoms) (eg, methyl sulfamoyl, phenyl sulfamoyl, etc.);
Halogen atom (eg fluorine, chlorine, bromine, etc.); hydroxyl group; nitro group; cyano group; carboxyl group;
Heterocyclic groups (eg, oxazole ring, benzoxazole ring, thiazole ring, benzothiazole ring, imidazole ring, benzoimidazole ring, indorenine ring, pyridine ring, morpholin ring, piperidine ring, pyrrolidine ring, sulfolan ring, furan ring, thiophene) Rings, pyrazole rings, pyrrole rings, chroman rings, and coumarin rings, etc.).

Of these, as the substituent represented by ^one aspect of B2, it is preferable that the Hammett substituent constant (σp) value is 0.2 or more. Hammett's substituent constants are, for example, Chem. Rev. 91,165 (1991). Particularly preferred substituents are a cyano group, a nitro group, an alkoxycarbonyl group, an acyl group, a carbamoyl group, a sulfamoyl group, an alkylsulfonyl group and an arylsulfonyl group.

The substituent represented by B ¹¹ is preferably an alkyl group, an aryl group, an alkoxy group, or an amino group.

As described above, X ¹ in "-C (= X ¹ ) -B ¹¹ ", which is one aspect of B ¹ in the above formula (C-2), is = O, = S, = NR, or =. C (CN) ₂ is represented, and R is represented by a substituent.
Here, examples of the substituent represented by R include those exemplified as the substituent represented by B ¹¹ and B ² described above. Of these, an aryl group is preferable, and a phenyl group is more preferable.
In the present invention, X ¹ is preferably = O.

<Equation (C-3)>
In the above formula (C-3), J ² represents a hydrogen atom or an alkyl group.
Further, Y ¹ represents an atomic group required to form a carbon ring or a heterocycle.
Further, G represents an atomic group required to complete a conjugated double bond chain.
Further, x represents 0 or 1.
Further, X ² represents = O, = S, = NR, or = C (CN) ₂ , and R represents a substituent.

Here, as J ² in the above formula (C-3), the same as J ¹ in the above formula (C-2) can be mentioned.
Further, Y1 in the above formula (C ^- 3) is an atomic group composed of heteroatoms (for example, nitrogen atom, oxygen atom or sulfur atom) in which the main chain forms a carbon atom or a heterocycle. .. That is, the main chain of this atomic group is a connecting group consisting of two atoms selected from carbon atoms or different atoms (for example, nitrogen atom, oxygen atom or sulfur atom), and these carbon atoms or different atoms have , Hydrogen atom or substituent is bonded so as to maintain an appropriate valence. A double bond may exist in this atomic group.
Further, as the conjugated double bond chain formed by G in the above formula (C-3), for example, -CH = CH-, -CH = CH-CH = CH-, -CH = C (CH ₃ ). -Can be mentioned.
Further, the X ² in the above formula (C-3) is the same as the X ¹ in "-C (= X ¹ ) -B ¹¹ " which is one aspect of B ¹ in the above formula (C-2). Can be mentioned.

In the above formula (C-3), Y ¹ and -C (= C)-(G) x-C (= X ² )-[hereinafter, abbreviated as "W ¹ " for convenience. ), The ring structure composed of) is preferably a 4- to 7-membered ring or a heterocycle, and more preferably a 5-membered or 6-membered ring. In particular, x represents 0, X ² represents O or S, and Y ¹ because the synthesis of the compound becomes easy and the inverse wavelength dispersibility of the formed optically anisotropic film becomes better. It is more preferable that the ring structure composed of W ¹ is a 5-membered ring or a 6-membered ring carbocyclic ring or a heterocyclic ring.
These carbocycles or heterocycles may have a substituent and may further form a fused ring with another 4- to 7-membered ring.
Examples of the substituent include those exemplified as the substituent represented by the above-mentioned B ¹¹ and B ² .
Further, as the heteroatom forming the heterocycle, B, N, O, S, Se, and Te are preferable, and N, O, and S are more preferable.

Examples of the carbon ring composed of Y ¹ and W ¹ include the following. In the illustration, Ra and Rb independently represent a hydrogen atom or a substituent.

Of these carbon rings, the carbon rings represented by the above formulas A-1, A-2, A-4, A-6 and A-7 are preferable, and they are represented by the above formulas A-1 and A-2. It is more preferable that the carbon ring is used.

Examples of the heterocycle composed of Y ¹ and W ¹ include the following. In the illustration, Ra, Rb and Rc independently represent a hydrogen atom or a substituent.

Of these heterocycles, the above formulas A-1, A-8, A-9, A-10, A-12, A-13, A-14, A-16, A-17, A-20, A It is preferably a heterocycle represented by -21, A-22, A-31, A-34, A-36, A-45 and A-55, and the above formulas A-1, A-8 and A-13 are preferable. , A-14, A-16, A-17, A-20, A-21, A-22, A-31, A-34 and A-55 are more preferred.

Examples of the substituent represented by Ra, Rb and Rc include those exemplified as the substituent represented by B ¹¹ and B ² described above. In particular, when substituting with a nitrogen atom, for example, an alkyl group, a phenyl group, a group represented by the following formula (R-2) and the like can be mentioned. When substituting with a carbon atom, an alkyl group, a group in which one or more of -CH _2- constituting the alkyl group is substituted with -O-, -S-, -NH- or -CO-, an alkenyl group, an alkynyl Examples thereof include a group, an aryl group, a cyano group, a nitro group, and a group represented by the following formula (R-2).
Equation (R-2): -L ¹⁰ -R ^sp10 -Z ¹⁰
Here, in the above formula (R-2),
L ¹⁰ is -O-, -S-, -OCH _2- , -CH ₂ O-, -CH ₂ CH _2- , -CO-, -COO-, -OCO-, -CO-S-, -S. -CO-, -O-CO-O-, -CO-NH-, -NH-CO-, -OCO-NH-, -NH-COO-, -NH-CO-NH-, -NH-O-, -O-NH-, -SCH _2- , -CH ₂ S-, -CF ₂ O-, -OCF _2- , -CF ₂ S-, -SCF _2- , -CH = CH-COO-, -CH = CH-OCO-, -COO-CH = CH-, -OCO-CH = CH-, -COO-CH ₂ CH _2- , -OCO-CH ₂ CH _2- , -CH ₂ CH ₂ -COO-, -CH ₂ CH ₂ -OCO-, -COO-CH _2- , -OCO-CH _2- , -CH ₂ -COO-, -CH ₂ -OCO-, -CH = CH-, -N = N-, -CH = Represents N-, -N = CH-, -CH = N-N = CH-, -CF = CF-, -C≡C-, or a single bond.
R ^sp10 represents an alkylene group having 1 to 20 carbon atoms or a single bond. However, one -CH _2- or two or more non-adjacent -CH _2- constituting the above-mentioned alkylene group independently have -O-, -COO-, -OCO-, and -OCO-O, respectively. -, -CO-NH-, -NH-CO-, -CH = CH-, or -C≡C- may be substituted.
Z ¹⁰ represents a polymerizable group.

Further, Ra, Rb and Rc may be linked to each other to form a carbon ring or a heterocycle.
Examples of the carbon ring include a saturated or unsaturated 4- to 7-membered carbon ring such as a cyclohexyl ring, a cyclopentyl ring, a cyclohexene ring, and a benzene ring.
Examples of the heterocycle include saturated or unsaturated 4- to 7-membered heterocycles such as a piperidine ring, a piperazine ring, a morpholine ring, a tetrahydrofuran ring, a furan ring, a thiophene ring, a pyridine ring, and a pyrazine ring. Can be done.
These carbocycles or heterocycles may further have substituents. Examples of the substituent include those exemplified as the substituent represented by the above-mentioned B ¹¹ and B ² .

<Equation (C-4)>
In the above formula (C-4), R ¹ , R ² , R ³ and R ⁴ independently represent a hydrogen atom or a substituent, respectively.
Further, X ³ represents O, S, or NR ⁵ , and R ⁵ represents a hydrogen atom or a substituent.
Further, J ³ represents a hydrogen atom or an alkyl group.

Here, as the substituent which is one aspect of R ¹ , R ² , R ³ , R ⁴ and R ⁵ in the above formula (C-4), the substituent represented by the above-mentioned Ra, Rb and Rc. The above-mentioned examples are given, and the preferable range thereof is also the same.
Further, the X ³ in the above formula (C-4) is preferably O or S, and is preferably O, for the reason that the inverse wavelength dispersibility of the formed optically anisotropic film becomes better. Is more preferable.
Moreover, as J ³ in the said formula (C-4), the same thing as J ² in the said formula (C-3) can be mentioned.

In the present invention, X ³ in the above formula (C-4) represents O, and R ¹ and R ² are alkyl groups for the reason that the inverse wavelength dispersibility of the formed optically anisotropic film becomes better. It is preferable that R ³ and R ⁴ represent a hydrogen atom.

N in the above equation (1) represents an integer of 2 to 4, and the plurality of Cs may be the same or different.
In the present invention, n in the above formula (1) is preferably 2 or 4, and preferably 2 for the reason that the inverse wavelength dispersibility of the formed optically anisotropic film is better. More preferred.

A ^core in the above formula (1) may have a substituent (for example, the above-mentioned substituent E or the like), and is a monocyclic, condensed ring or ring-aggregated aromatic group having 4 to 18 carbon atoms. Represents an n + divalent group.
Examples of the monocyclic aromatic hydrocarbon ring constituting the monocyclic aromatic group include a benzene ring, and examples of the monocyclic aromatic heterocycle constituting the monocyclic aromatic group include a furan ring, a pyridine ring, and a pyrimidine. Rings, pyrazine rings and the like can be mentioned.
Examples of the aromatic hydrocarbon ring of the fused ring constituting the fused ring aromatic group include a naphthalene ring, an anthracene ring, and a phenanthrene ring, and examples of the aromatic heterocycle of the fused ring constituting the fused ring aromatic group include a naphthalene ring, an anthracene ring, and a phenanthrene ring. Examples thereof include a quinoline ring, an acridine ring, and a phenanthridine ring.
The ring assembly refers to a structure in which two rings do not have a covalent atom and are connected via a bond, and examples of the structure constituting the ring-aggregated aromatic group include aromatic hydrocarbon rings of monocyclic and fused rings. Examples thereof include structures in which at least two rings selected from the group consisting of aromatic heterocycles of monocyclic and fused rings are directly linked. Examples of the structure constituting the ring-assembled aromatic group having 4 to 18 carbon atoms include biphenyl, 2-phenylnaphthalene, 1-phenylnaphthalene and the like.
Of these, a benzene ring, a naphthalene ring, and biphenyl are preferable, and biphenyl is particularly preferable from the viewpoint of improving birefringence.

In the present invention, for the reason that the synthesis of the compound becomes easy, the partial structure represented by the following formula (1-1) in the above formula (1) is the following formula (1-1a) or the following formula (1-). The structure represented by 1b) is preferable.

In the above formulas (1-1), (1-1a) and (1-1b), * represents a binding position, and C, n and A ^core are C, n and A ^core in the above formula (1). Is similar to.
Further, in the above equation (1-1b), n1 and n2 each independently represent an integer of 0 to 2. However, the sum of n1 and n2 represents an integer of 2 to 4.

Specific examples of the compound represented by the above formula (1-1) include compounds represented by the following formula. In the following formula, * represents a bonding position, and each of the plurality of Cs may be the same or different, and has a substituent other than C (for example, the above-mentioned substituent E). You may.

L ¹ , L ² , L ³ and L ⁴ in the above formula (1) are independently single-bonded or -CO-, -O-, -S-, -C (= S)-,-, respectively. CR ¹¹ R ^12- , -CR ¹³ = CR ^14- , -C≡C-, -NR ^15- , -N = CR ^16- , -N = N-, or a combination of two or more of these 2 Representing a valent linking group, R ¹¹ to R ¹⁶ independently represent a hydrogen atom, a fluorine atom, or an alkyl group having 1 to 12 carbon atoms.
When m1 in the above equation (1) represents an integer of 2 to 4, the plurality of ^L3s may be the same or different, and when m2 represents an integer of 2 to 4, a plurality of L3s may be the same or different. L ⁴ may be the same or different from each other.

As L ¹ and L ² , from the viewpoint of orientation, availability of raw materials, and ease of synthesis, single bond or -CO-, -O-, -CO-O-, -C (=) S) O-, -CR ¹¹ R ^12- , -CR ¹¹ R ¹² -CR ¹¹ R ^{12-, -O-CR 11 R 12-, -CR 11 R 12} ^-O ^- ^CR ¹¹ ^R ^12- , -CO- O-CR ¹¹ R ^12- , -O-CO-CR ¹¹ R ^12- , -CR ¹¹ R ¹² -O-CO-CR ¹¹ R ^12- , -CR ¹¹ R ¹² -CO-O-CR ¹¹ R ^12- , -NR ¹⁵ -CR ¹¹ R ^12- , and -CO-NR ¹⁵ -preferably.
Further, as L ¹ and L ² , a single bond, or -O-, -S-, -OCH _2- , -CH ₂ O-, -CH ₂ CH _2- , -CO-, -COO-,- OCO-, -CO-S-, -S-CO-, -O-CO-O-, -CO-NH-, -NH-CO-, -OCO-NH-, -NH-COO-, -NH- CO-NH-, -NH-O-, -O-NH-, -SCH _2- , -CH ₂ S-, -CF ₂ O-, -OCF _2- , -CF ₂ S-, -SCF _2- , -CH = CH-COO-, -CH = CH-OCO-, -COO-CH = CH-, -OCO-CH = CH-, -COO-CH ₂ CH _2- , -OCO-CH ₂ CH _2- , -CH ₂ CH ₂ -COO-, -CH ₂ CH ₂ -OCO-, -COO-CH _2- , -OCO-CH _2- , -CH ₂ -COO-, -CH ₂ -OCO-, -O-CH ₂ CH ₂ CH ₂ -OCO-, -CH = CH-, -N = N-, -CH = N-, -N = CH-, -CH = N-N = CH-, -CF = CF-, and , -C≡C- is preferably represented.

As L ³ and L ⁴ , from the viewpoint of easy availability of raw materials and ease of synthesis, -O-, -S-, -OCH _2- , -CH ₂ O-, -COO-, -OCO- , -CO-S-, -S-CO-, -O-CO-O-, -CO-NH-, -NH-CO-, -CH = CH-COO-, -CH = CH-OCO-,- COO-CH = CH-, -OCOCH = CH-, -COO-CH ₂ CH _2- , -OCO-CH ₂ CH _2- , -CH ₂ CH ₂ -COO-, -CH ₂ CH ₂ -OCO-, or , -O-, -OCH _2- , -CH ₂ O-, -COO-, -OCO-, -CH = CH-COO-, -CH = CH-OCO-, -COO -CH = CH-, -OCO-CH = CH-, -COO-CH ₂ CH _2- , -OCO-CH ₂ CH _2- , -CH ₂ CH ₂ -COO-, -CH ₂ CH ₂ -OCO-, Alternatively, it is more preferable to represent a single bond.

A ¹ and A ² in the above formula (1) may independently have a substituent (for example, the above-mentioned substituent E or the like), cyclohexane-1,4-diyl group, cyclopentane-. 1,3-Diyl group, cycloheptane-1,3-diyl group, cycloheptane-1,4-diyl group, decahydronaphthalene-2,6-diyl group, or 1,3-dioxane-2,5- Represents a diyl group.

Among these, A ¹ and A ² are substituents because it makes it easier to improve the reverse wavelength dispersibility of the formed light absorption anisotropic film and improve the orientation of the polymerizable composition. Cyclohexane-1,4-diyl group, cyclopentane-1,3-diyl group, cycloheptane-1,3-diyl group, or cyclo, which may have (eg, the substituent E described above). It is preferably a heptane-1,4-diyl group, more preferably a trans-cyclohexane-1,4-diyl group which may have a substituent (eg, the above-mentioned substituent E, etc.). ..

A ³ and A ⁴ in the above formula (1) may independently have a substituent (for example, the above-mentioned substituent E, etc.), cyclohexane-1,4-diyl group, cyclopentane-. 1,3-Diyl group, cycloheptane-1,3-diyl group, cycloheptane-1,4-diyl group, benzene-1,4-diyl group (1,4-phenylene group), pyridine-2,5- Diyl group, pyrimidin-2,5-diyl group, naphthalene-2,6-diyl group, naphthalene-2,7-diyl group, naphthalene-1,4-diyl group, tetrahydronaphthalene-2,6-diyl group, deca Represents a hydronaphthalene-2,6-diyl group or a 1,3-dioxane-2,5-diyl group.
When m1 in the above equation (1) represents an integer of 2 to ⁴ , the plurality of A3s may be the same or different, and when m2 represents an integer of 2 to 4, a plurality of A3s may be the same or different. A4 may be the same or different from ^each other.

The reason that A ³ and A ⁴ in the above formula (1) further improve the reverse wavelength dispersibility of the formed light absorption anisotropic film and facilitate the improvement of the orientation of the polymerizable composition. , Benzene-1,4-diyl group, cyclohexane-1,4-diyl group, pyridine-2,5-diyl group, pyrimidine-2,5-diyl group, naphthalene-2,6-diyl group, naphthalene-1, It is preferably a 4-diyl group, a tetrahydronaphthalene-2,6-diyl group, a decahydronaphthalene-2,6-diyl group, or a 1,3-dioxane-2,5-diyl group.
Of these, the benzene-1,4-diyl group is easy to further improve the inverse wavelength dispersibility of the formed light absorption anisotropic film and further improve the orientation of the polymerizable composition. , Naphthalene-2,6-diyl group or cyclohexane-1,4-diyl group is preferable, and benzene-1,4-diyl group or cyclohexane-1,4-diyl group is more preferable. It is preferably a benzene-1,4-diyl group, and more preferably a benzene-1,4-diyl group.

In the above equation (1), m ¹ and m ² each independently represent an integer of 0 to 4. However, when m1 represents an integer of 2 to ⁴ , the plurality of L3 and A3 may be the same or different, respectively, and when m2 represents an integer of ² to ⁴ , a plurality of L4 and A may be present. ⁴ may be the same or different from each other.
In the present invention, when emphasis is placed on reverse wavelength dispersibility and orientation, it is preferable that one or both of m ¹ and m ² are integers of 0 to 3, and both m ¹ and m ² are 0 to 3. It is more preferably an integer of 2, and even more preferably both m ¹ and m ² are 0 or 1.

R ¹ and R ² in the above formula (1) independently represent a group represented by the following formula (R-1).
Equation (R-1): -L ⁵ -R ^sp1 -Z ¹
In formula (R-1), L ⁵ is -O-, -S-, -OCH _2- , -CH ₂ O-, -CH ₂ CH _2- , -CO-, -COO-, -OCO-, -CO-S-, -S-CO-, -OC-O-, -CO-NH-, -NH-CO-, -OCO-NH-, -NH-COO-, -NH-CO-NH-, -NH-O-, -O-NH-, -SCH _2- , -CH ₂ S-, -CF ₂ O-, -OCF _2- , -CF ₂ S-, -SCF _2- , -CH = CH- COO-, -CH = CH-OCO-, -COO-CH = CH-, -OCO-CH = CH-, -COOCH ₂ CH _2- , -OCO-CH ₂ CH _2- , -CH ₂ CH ₂ -COO -, -CH ₂ CH ₂ -OCO-, -COO-CH _2- , -OCO-CH _2- , -CH ₂ -COO-, -CH ₂ -OCO-, -CH = CH-, -N = N- , -CH = N-, -N = CH-, -CH = NN = CH-, -CF = CF-, -C≡C-, or a single bond.

In the above formula (R-1), L5 is independently -O-, -S-, -COO-, ^-OCO- , and -CO from the viewpoint of easy availability of raw materials and easy synthesis. -S-, -S-CO-, -O-CO-O-, -CO-NH-, -NH-CO-, -CH ₂ CH ₂ -COO-, -CH ₂ CH ₂ -OCO-, or It preferably represents a single bond, more preferably -O-, -COO-, -OCO-, -O-CO-O-, or a single bond.

In the above formula (R-1), R ^sp1 represents an alkylene group having 1 to 20 carbon atoms or a single bond. However, one -CH _2- or two or more non-adjacent -CH _2- constituting the alkylene group independently have -O-, -COO-, -OCO-, and -OCO-O-, respectively. , -CO-NH-, -NH-CO-, -CH = CH-, or -C≡C- may be substituted.

The R ^sp1 in the above formula (R-1) preferably represents an alkylene group having 2 to 12 carbon atoms or a single bond, and has 2 to 10 carbon atoms, from the viewpoint of easy availability of raw materials and ease of synthesis. It is more preferable to represent an alkylene group or a single bond of the above, further preferably to represent an alkylene group having 2 to 8 carbon atoms, and particularly preferably to represent an alkylene group having 4 to 8 carbon atoms. However, one -CH _2- or two or more non-adjacent -CH _2- constituting these alkylene groups are independently -O-, -COO-, -OCO-, and -OCO-, respectively. It may be substituted with O-, -CO-NH-, -NH-CO-, -CH = CH-, or -C≡C-.

Examples of R ^sp1 in the above formula (R-1) include the groups shown in Table 1 below.

In the above formula (R-1), Z ¹ represents a hydrogen atom or a polymerizable group.
The polymerizable group is not particularly limited, but a polymerizable group capable of radical polymerization or cationic polymerization is preferable.
As the radically polymerizable group, a generally known radically polymerizable group can be used, and suitable examples thereof include an acryloyloxy group and a methacryloyloxy group. In this case, it is known that the acryloyloxy group is generally faster in terms of the polymerization rate, and the acryloyloxy group is preferable from the viewpoint of improving productivity, but the methacryloyloxy group can also be used as the polymerizable group in the same manner.
As the cationically polymerizable group, a generally known cationically polymerizable group can be used, and specifically, an alicyclic ether group, a cyclic acetal group, a cyclic lactone group, a cyclic thioether group, a spiroorthoester group, and , Vinyloxy group and the like. Of these, an alicyclic ether group or a vinyloxy group is preferable, and an epoxy group, an oxetanyl group, or a vinyloxy group is particularly preferable.
Examples of particularly preferable polymerizable groups include polymerizable groups represented by any of the following formulas (P-1) to (P-20). In the following formula, * indicates the binding position with R ^sp1 .

Among these polymerizable groups, when UV polymerization is performed as a polymerization method, the above formula (P-1), formula (P-2), formula (P-5), formula (P-7), formula (P-7), The polymerizable group represented by any of P-8), the formula (P-11) and the formula (P-12) is preferable, and the above formula (P-1), the formula (P-2) and the formula (P-) are preferable. The polymerizable group represented by any of 5) and the formula (P-12) is more preferable, and the polymerizable group represented by the above formula (P-1) or the above formula (P-2) is further preferable. The polymerizable group represented by (P-1) is particularly preferable.
In addition to Z ¹ in the above formula (1), when ^-LE -R ^spE - ^ZE is present and ^ZE represents a polymerizable functional group, it is also preferable that Z ¹ is a hydrogen atom. It is a form.

Examples of -L ⁵ -R ^sp1 -Z ¹ represented by the above formula (R-1) include the examples shown in Tables 2 to 4 below. In Tables 3 and 4 below, the numbers listed in the column of Z ¹ are the numbers of the polymerizable groups represented by the above formulas (P-1) to (P-20).

Specific examples of the specific compound include compounds represented by the following formulas (1) to (136), and specifically, K (specifically, K (1) to (136) in the following formulas (1) to (136). Examples of the side chain structure) include compounds having the side chain structures shown in Tables 5 to 11 below.
In Tables 5 to 11 below, "*" shown in the side chain structure of K represents the bonding position with the aromatic ring.
Further, in the side chain structure represented by K-1-12 or the like in Table 5 below, the group adjacent to the acryloyloxy group and the methacryloyl group, respectively, represents a propylene group (a group in which a methyl group is replaced with an ethylene group). , Represents a mixture of positional isomers with different positions of methyl groups.
Further, in the following equations (1) to (105),
The (E) / (Z) isomer in -CH = CH-, -N = CH-, -CH = N-, or -N = N- represented by M in the above formula (C-1);
The following structure included in the above formula (C-2);

The following structure included in the above formula (C-3);

Although described without distinction, these may be either of the two rotational isomers or may be a mixture.

As the specific compound, as described above, as K (side chain structure) in the above formulas (1) to (105), compounds having the side chain structures shown in Tables 5 to 11 above can be mentioned, respectively. , The compounds shown in Tables 12 to 15 below are preferably mentioned.

In particular, as the specific compound, the following compounds are preferably mentioned.

The specific compound can be produced by a known method, for example, by the following method.

For example, when A ^core is biphenyl, L ¹ is -C (= O) O-, and L ² is -OC (= O)-, the biphenol derivative A-1 and the active methylene compound A- It can be produced by dehydrating 2 to synthesize a condensate A-3 and then esterifying it with a cyclohexylcarboxylic acid derivative A-4.
As a method of esterification reaction, for example, a method of acid chlorideizing a carboxylic acid derivative A-4 with thionyl chloride or oxalyl chloride, a method of reacting a base with femaleyl lolide or the like to form a mixed acid anhydride, and then a condensate A. Examples thereof include a method of allowing -3 to act in the presence of a base. Alternatively, a method of directly esterifying the condensate A-3 and the carboxylic acid derivative A-4 using a condensing agent such as carbodiimide can be mentioned.

As a method for producing the biphenol derivative A-1, for example, when J ¹ is a hydrogen atom, it can be produced by a duff reaction with a biphenol or a Philsmayer reaction.

Since the specific compound represented by the above formula (1) has 2 to 4 groups represented by C in the above formula (1), it exhibits a large reverse wavelength dispersibility when oriented. Therefore, the wavelength dispersibility of the anisotropic film can be adjusted to a desired range by producing an optically anisotropic film using the specific compound represented by the above formula (1). In particular, a wide-band λ / 4 wave plate can be obtained by forming a horizontal orientation using the specific compound represented by the above formula (1) and forming it into a fixed positive A plate.

Further, in the specific compound represented by the above formula (1), a biphenyl group having a large birefringence can be introduced into the A ^core , and the birefringence can be improved without impairing the reverse wavelength dispersibility. Derived from this, the optically anisotropic film produced by using the polymerizable composition containing the specific compound represented by the above formula (1) can be thinned. Therefore, the optically anisotropic film formed by using the above-mentioned polymerizable composition is, for example, a retardation plate, a polarizing element, a selective reflection film, a color filter, an antireflection film, and a viewing angle, which are constituent elements of the optical element. It can be used for various purposes such as compensation film, holography, and alignment film.

[Polymerizable composition]
The polymerizable composition of the present invention is a polymerizable composition containing the above-mentioned compound (specific compound) of the present invention.
The polymerizable composition of the present invention may contain a polymerizable compound, an orientation control agent, an arbitrary solvent, an additive and the like, in addition to the above-mentioned specific compound. The specific compound is preferably 30 to 98% by mass, more preferably 40 to 95% by mass, based on the total solid content mass of the polymerizable composition.

[Polymerizable compound]
The polymerizable compound may or may not have liquid crystallinity, but when the above-mentioned specific compound does not have liquid crystallinity, it is preferable that at least one of the polymerizable compounds has liquid crystallinity.
By adding the polymerizable compound, various physical properties such as the phase transition temperature and crystallinity of the polymerizable composition can be controlled.
Further, since the polymerizable compound is mixed with the above-mentioned specific compound and treated as a polymerizable composition, it is preferable that the polymerizable compound has high compatibility with the above-mentioned specific compound.
Hereinafter, suitable polymerizable compounds will be described.

<Non-liquid crystal polyfunctional polymerizable compound>
As the polymerizable compound, for example, a non-liquid crystal polyfunctional polymerizable compound is preferably mentioned.
By adding a non-liquid polyfunctional polymerizable compound to the polymerizable composition, even when the above-mentioned specific compound does not have a polymerizable group, it functions as a binder by polymerization curing to obtain the specific compound. The orientation state can be fixed. Further, in the case of a smectic phase, the layers are linked by a non-liquid crystal polyfunctional polymerizable compound, so that the proximity between the layers can be suppressed.
Examples of such non-liquid polyfunctional polymerizable compounds include esters of polyhydric alcohols and (meth) acrylic acid (eg, ethylene glycol di (meth) acrylate, 1,4-cyclohexanediacrylate, pentaerythritol tetra (meth). ) Acrylate, Pentaerythritol Tri (meth) Acrylate, Trimethylol Propantri (Meta) Acrylate, Trimethylol Ethantri (Meta) Acrylate, Dipentaerythritol Tetra (Meta) Acrylate, Dipentaerythritol Penta (Meta) Acrylate, Dipentaerythritol Hexa (meth) acrylate, 1,2,3-cyclohexanetetramethacrylate, polyurethane polyacrylate, polyester polyacrylate), vinylbenzene and derivatives thereof (eg, 1,4-divinylbenzene, 4-vinylbenzoic acid-2-acryloylethyl). Esters, 1,4-divinylcyclohexanone), vinylsulfone (eg, divinylsulfone), acrylamide (eg, methylenebisacrylamide), methacrylicamide and the like can be mentioned.

The content of the non-liquid polyfunctional polymerizable compound in the polymerizable composition is preferably 0.1 to 40% by mass, more preferably 0.1 to 30% by mass in terms of solid content concentration. It is particularly preferably 0.1 to 20% by mass, preferably 1 to 20% by mass, more preferably 5 to 20% by mass, and particularly preferably 10 to 20% by mass. ..

<Liquid crystal polymerizable compound>
As the polymerizable compound, for example, a liquid crystal compound having a polymerizable group (liquid crystal polymerizable compound) is preferably mentioned.
Generally, liquid crystal compounds can be classified into rod-shaped type and disk-shaped type according to their shape. Furthermore, there are small molecule and high molecular types, respectively. A polymer generally refers to a molecule having a degree of polymerization of 100 or more (Polymer Physics / Phase Transition Dynamics, Masao Doi, p. 2, Iwanami Shoten, 1992).
In the present invention, any liquid crystal compound can be used, but it is preferable to use a rod-shaped liquid crystal compound or a discotic liquid crystal compound, and it is more preferable to use a rod-shaped liquid crystal compound.

In the present invention, a liquid crystal compound having a polymerizable group is used for immobilization of the above-mentioned liquid crystal compound, but it is more preferable that the liquid crystal compound has two or more polymerizable groups in one molecule. When the liquid crystal compound is a mixture of two or more kinds, it is preferable that at least one kind of liquid crystal compound has two or more polymerizable groups in one molecule. After the liquid crystal compound is fixed by polymerization, it is no longer necessary to exhibit liquid crystallinity.

Further, the type of the polymerizable group is not particularly limited, a functional group capable of an addition polymerization reaction is preferable, and a polymerizable ethylenically unsaturated group or a ring-polymerizable group is preferable. More specifically, a (meth) acryloyl group, a vinyl group, a styryl group, an allyl group and the like are preferably mentioned, and a (meth) acryloyl group is more preferable.

As the rod-shaped liquid crystal compound, for example, those described in claim 1 of JP-A No. 11-513019 and paragraphs [0026] to [0098] of JP-A-2005-289980 can be preferably used, and discotics can be used. As the liquid crystal compound, for example, those described in paragraphs [0020] to [0067] of JP-A-2007-108732 and paragraphs [0013] to [0108] of JP-A-2010-244038 can be preferably used. However, it is not limited to these.

Further, in the present invention, a liquid crystal compound having a reverse wavelength dispersibility can be used as the liquid crystal compound.
Here, as the liquid crystal compound having "reverse wavelength dispersibility" in the present specification, the in-plane retardation (Re) value at a specific wavelength (visible light range) of a retardation film produced by using the liquid crystal compound is measured. In this case, it means that the Re value becomes equal or higher as the measurement wavelength becomes larger.
Further, the reverse wavelength dispersible liquid crystal compound is not particularly limited as long as it can form a reverse wavelength dispersible film as described above, and is, for example, the general formula (1) described in JP-A-2010-084032. (In particular, the compound represented by paragraph numbers [0067] to [0073]) and the compound represented by the general formula (II) described in JP-A-2016-053709 (particularly, paragraph number [0036]. ] To [0043], and the compound represented by the general formula (1) described in JP-A-2016-081035 (particularly, the compound described in paragraph numbers [0043] to [0055]) and the like. Can be mentioned.

[Polymer initiator]
The polymerizable composition of the present invention preferably contains a polymerization initiator.
The polymerization initiator is not particularly limited, and examples thereof include a thermal polymerization initiator and a photopolymerization initiator depending on the type of the polymerization reaction.
As the polymerization initiator, a photopolymerization initiator capable of initiating a polymerization reaction by irradiation with ultraviolet rays is preferable.
Examples of the photopolymerization initiator include α-carbonyl compounds (described in US Pat. Nos. 2,376,661 and 236,670), acidoin ethers (described in US Pat. No. 2,448,828), and α-hydrogen-substituted fragrances. Group acidloin compounds (described in US Pat. No. 2,725,512), polynuclear quinone compounds (described in US Pat. Nos. 3,416127 and 2951758), combinations of triarylimidazole dimers and p-aminophenyl ketone (US patent). 3549365 (described in US Pat. No. 3,549,67), aclysine and phenazine compounds (Japanese Patent Laid-Open No. 60-105667, US Pat. No. 4,239,850), oxadiazole compounds (described in US Pat. No. 4,212,970), and acyl. Examples thereof include phosphine oxide compounds (described in Japanese Patent Publication No. 63-040799, Japanese Patent Application Laid-Open No. 5-209234, Japanese Patent Application Laid-Open No. 10-095788, and Japanese Patent Application Laid-Open No. 10-029997).
Further, as the polymerization initiator, an oxime-type polymerization initiator can also be preferably used, and specific examples thereof are described in paragraphs [0045] to [0049] of International Publication No. 2019/017445. Agents are mentioned.
The content of the photopolymerization initiator in the polymerizable composition is the solid content concentration with respect to the total polymerizable compound including the above-mentioned specific compound (provided that it has a polymerizable group) and the polymerizable compound. It is preferably 0.01 to 20% by mass, and more preferably 0.5 to 5% by mass.

[Orientation control agent]
The polymerizable composition may contain an orientation control agent, if necessary.
As the orientation control agent, for example, a small molecule orientation control agent or a polymer orientation control agent can be used. Examples of the small molecule orientation control agent include paragraphs 0009 to 0083 of JP-A-2002-20363, paragraphs 0111 to 0120 of JP-A-2006-106662, and paragraphs 0021-0029 of JP-A-2012-211306. The description can be taken into account and this content is incorporated herein by reference. Further, as the polymer orientation control agent, for example, the description in paragraphs 0021 to 0057 of JP-A-2004-198511 and paragraphs 0121 to 0167 of JP-A-2006-106662 can be referred to, and the contents thereof. Is incorporated herein by reference.
The amount of the orientation control agent used is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, based on the solid content in the polymerizable composition. By using the orientation control agent, for example, the specific compound of the present invention can be in a horizontally oriented state aligned in parallel with the surface of the film.

〔Additive〕
In addition to the above, examples of additives that can be contained in the polymerizable composition include surfactants for controlling the surface texture and surface shape, and additives for controlling the inclination angle of the liquid crystal compound (orientation assistance). Agents), additives (plasticizers) that lower the orientation temperature, other agents that impart functionality, and the like, and can be used as appropriate.

〔solvent〕
In order to improve the manufacturing aptitude of the optically anisotropic film at the time of development, a solvent can be added to the polymerizable composition for the purpose of adjusting the viscosity or the like. The solvent that can be used is not particularly limited as long as it does not reduce the manufacturing suitability, but it is preferably selected from at least one of the group consisting of ketones, esters, ethers, alcohols, alkanes, toluenes, chloroforms and methylene chlorides. It is more preferable to be selected from at least one of the group consisting of ketones, esters, ethers, alcohols and alkanes, and it is particularly preferable to be selected from at least one of the groups consisting of ketones, esters, ethers and alcohols.
The amount of the solvent used is generally 50 to 90% by mass as the concentration in the polymerizable composition, but is not particularly limited.

[Optically anisotropic film]
The optically anisotropic film of the present invention is an optically anisotropic film obtained by polymerizing the above-mentioned polymerizable composition of the present invention.
Further, since the optically anisotropic film of the present invention uses the above-mentioned compound of the present invention, it is an optically anisotropic film having excellent anti-wavelength dispersibility. Specifically, the optically anisotropic film of the present invention is preferably an optically anisotropic film satisfying the following formula (III), and is preferably an optically anisotropic film satisfying the following formula (IV).
0.50 <Re (450) / Re (550) <0.95 ... (III)
0.50 <Re (450) / Re (550) <0.90 ... (IV)
Here, in the above formulas (III) and (IV), Re (450) represents the in-plane retardation of the optically anisotropic film at a wavelength of 450 nm, and Re (550) represents the wavelength of the optically anisotropic film at a wavelength of 550 nm. Represents the in-plane lettering in. If the measurement wavelength of the retardation is not specified in the present specification, the measurement wavelength is 550 nm.
The in-plane retardation value is a value measured using light of a measurement wavelength using AxoScan OPMF-1 (manufactured by Optoscience).
Specifically, by inputting the average refractive index ((Nx + Ny + Nz) / 3) and the film thickness (d (μm)) in AxoScan OPMF-1.
Slow phase axial direction (°)
Re (λ) = R0 (λ)
Rth (λ) = ((nx + ny) /2-nz) × d
Is calculated.
Although R0 (λ) is displayed as a numerical value calculated by AxoScan OPMF-1, it means Re (λ).

The optically anisotropic film of the present invention is preferably a positive A plate or a positive C plate, and more preferably a positive A plate.

Here, the positive A plate (positive A plate) and the positive C plate (positive C plate) are defined as follows.
The refractive index in the slow phase axial direction (the direction in which the refractive index in the plane is maximized) in the film plane is nx, the refractive index in the direction orthogonal to the slow phase axis in the plane in the plane is ny, and the refraction in the thickness direction. When the rate is nz, the positive A plate satisfies the relation of the formula (A1), and the positive C plate satisfies the relation of the formula (C1). The positive A plate shows a positive value for Rth, and the positive C plate shows a negative value for Rth.
Equation (A1) nx> ny≈nz
Equation (C1) nz> nx≈ny
In addition, the above-mentioned "≈" includes not only the case where both are completely the same but also the case where both are substantially the same.
“Substantially the same” means that in a positive A plate, for example, (ny-nz) × d (where d is the thickness of the film) is -10 to 10 nm, preferably -5 to 5 nm. It is included in "ny≈nz", and when (nx-nz) xd is -10 to 10 nm, preferably -5 to 5 nm, it is also included in "nx≈nz". Further, in the positive C plate, for example, when (nx-ny) × d (where d is the thickness of the film) is 0 to 10 nm, preferably 0 to 5 nm, it is also included in “nx≈ny”.

When the optically anisotropic film of the present invention is a positive A plate, Re (550) is preferably 100 to 180 nm, more preferably 120 to 160 nm, from the viewpoint of functioning as a λ / 4 wave plate. , 130 to 150 nm is more preferable, and 130 to 140 nm is particularly preferable.
Here, the "λ / 4 wave plate" is a wave plate having a λ / 4 function, and specifically, a linear polarization of a specific wavelength is converted into circular polarization (or a circular polarization is converted into linear polarization). It is a section manager board that has the function of

[Method for producing optically anisotropic film]
The method for producing the optically anisotropic film of the present invention is not particularly limited. For example, after developing the above-mentioned polymerizable composition of the present invention and heating it to orient the major axis of the molecule of the above-mentioned specific compound, the present invention is used. Examples thereof include a method of curing the polymerizable composition.

Further, in the method for producing an optically anisotropic film of the present invention, it is preferable to develop the polymerizable composition on a support having a glass transition temperature higher than the orientation temperature of the polymerizable composition of the present invention described above. ..

In addition, the same method as the method for producing an optically anisotropic film using a general liquid crystal compound can be applied to the fabrication of the optically anisotropic film of the present invention.
As a method for producing an optically anisotropic film using a general liquid crystal compound, for example, a method in which a composition containing a liquid crystal compound is enclosed in a void or the like and the orientation state or the like is manipulated by heat, electric field, pressure or the like. Further, after the polymerizable composition containing the liquid crystal compound is developed as a coating liquid on a support or the like and subjected to alignment treatment, the liquid crystal compound itself or the polymerizable component in the composition is polymerized and cured in order to fix the alignment state. There is a way to make it.

Hereinafter, the above-mentioned polymerizable composition of the present invention is developed and heated to orient the major axis of the molecule of the above-mentioned specific compound, and then the polymerizable composition is cured to fix the orientation state. A method for producing an optically anisotropic film will be described.

<Development of polymerizable composition>
In the method for producing an optically anisotropic film of the present invention, the polymerizable composition is developed, heated to orient the major axis of the molecule of the specific compound of the present invention, and then cured. The orientation state is fixed to obtain an optically anisotropic film.
The method for developing the polymerizable composition is not particularly limited, but it is preferably carried out by applying (including casting) the polymerizable composition on the support. In such a method, the support used is not particularly limited, but in order to obtain the oriented state of the liquid crystal compound in the polymerizable composition developed on the support, the specific compound of the present invention is in the oriented state in the alignment step. Since the support is heated equally because it is heated to be equal to or higher than the phase transition temperature required for obtaining, that is, the orientation temperature, the glass transition temperature of the support is higher than the orientation temperature of the liquid crystal compound of the present invention. A high support is preferred. If the support has a glass transition temperature higher than the orientation temperature, it is possible to prevent the support from being thermally deformed by heating at the time of orientation.

When the temporary support is to be peeled off after forming the optically anisotropic film, a material having a surface texture that is easily peeled off may be used for the support. As such a support, glass, a polyester film which has not been subjected to an easy-adhesion treatment, or the like can be used.
When an optically anisotropic film is formed on the support and then used as it is as a laminate to be described later, the support may be an optical film substrate such as cellulose, cyclic olefin, acrylic, polycarbonate, polyester, or polyvinyl alcohol. Alternatively, a liquid crystal cell substrate or a polarizing element can be preferably used.

<Orientation of liquid crystal compound molecules>
In the method for producing an optically anisotropic film of the present invention, the polymerizable composition developed on a support or the like is brought into a desired orientation state with the major axis of the molecule of the specific compound of the present invention in the polymerizable composition. .. Here, the orientation state generally includes both types of liquid crystal phases such as nematic phase and smectic phase, and orientation of liquid crystal molecules necessary for display such as twist orientation, hybrid orientation, horizontal orientation, and vertical orientation. The former is generally controlled by a phase transition due to changes in temperature or pressure, and the latter is generally controlled by an orientation process.

(Orientation processing)
As a method of alignment treatment, for example, a method of orienting a liquid crystal compound in a desired direction by using an alignment film is common. As the alignment film, a rubbing-treated film made of an organic compound such as a polymer, an oblique vapor-deposited film of an inorganic compound, a film having microgrooves, or an organic compound such as ω-tricosanoic acid, dioctadecylmethylammonium chloride, or methyl stearylate. Examples include a film obtained by accumulating LB films by the Langmuir-Blogget method. However, when considering a laminating process for developing a polymerizable composition, a polymer layer formed by rubbing the surface of the polymer layer or a polymer is used. A photo-alignment film formed by photo-alignment treatment of the surface of the layer is preferable. The heat resistance of these alignment films is the same as that described for the support.

The rubbing treatment is carried out by rubbing the surface of the polymer layer with paper or cloth several times in a certain direction. The types of polymers used for the alignment layer are polyimide, polyvinyl alcohol, polymers having a polymerizable group described in JP-A-9-152509, JP-A-2005-97377, JP-A-2005-99228, and JP-A-2005-99228. The orthogonal alignment film or the like described in JP-A-2005-128503 can be preferably used. The orthogonal alignment film referred to in the present invention means an alignment film in which the major axis of the molecule of the specific compound of the present invention is oriented substantially orthogonal to the rubbing direction of the orthogonal alignment film. The thickness of the alignment layer does not have to be thick as long as it can provide the alignment function, and is preferably 0.01 to 5 μm, more preferably 0.05 to 2 μm.
Further, a so-called photo-alignment film, which is obtained by irradiating a photo-alignment material with polarized light or non-polarization to form an alignment film, can also be used. That is, a light distribution material may be applied onto the support to form a photoalignment film. Irradiation of polarized light can be performed from a vertical direction or an oblique direction with respect to the photoalignment film, and irradiation of non-polarization can be performed from an oblique direction with respect to the photoalignment film.

The photo-alignment material used for the photo-alignment film that can be used in the present invention is described in many documents and the like. In the photoalignment film of the present invention, for example, JP-A-2006-285197, JP-A-2007-76839, JP-A-2007-138138, JP-A-2007-94071, JP-A-2007-121721, The azo compounds described in JP-A-2007-140465, JP-A-2007-156439, JP-A-2007-133184, JP-A-2009-109831, Patent No. 3883848, and Patent No. 4151746, JP-A-2002. Aromatic ester compounds described in JP-A-229039, maleimide and / or alkenyl-substituted nadiimide compounds having photoorientation units described in JP-A-2002-265541 and JP-A-2002-317513, Patent No. 4205195, Photocrossable silane derivative described in Japanese Patent No. 4205198, JP-A-2003-520878, JP-A-2004-522220, Photocrossable polyimide, polyamide, or ester described in Japanese Patent No. 4162850, JP-A-9- The photodimerizable compound described in JP-A-118717, JP-A No. 10-506420, JP-A-2003-505561, WO2010 / 150748, JP-A-2013-177561, and JP-A-2014-12823. In particular, a cinnamate compound, a chalcone compound, and a coumarin compound are mentioned as preferable examples. Particularly preferred are an azo compound, a photocrosslinkable polyimide, a polyamide, an ester, a cinnamate compound, and a chalcone compound.

In addition, by selecting the material of the alignment film, it can be peeled off from the temporary support for forming the optically anisotropic film, or only the optically anisotropic film can be peeled off, and transfer, that is, the peeled optically anisotropic film is attached. By combining them, it is possible to provide a thin optically anisotropic film having a thickness of several μm. Further, it is also preferable that a rubbing alignment film or a photo-alignment film is directly applied and laminated on the linear polarizing element, and the rubbing or photo-alignment treatment is performed to impart an alignment function. That is, the laminate of the present invention may be a laminate having a linear polarizing element and having a light alignment film or a rubbing alignment film on the surface of the linear polarizing element.

In the optically anisotropic film obtained by horizontally orienting the specific compound of the present invention represented by the above formula (1), it is preferable that the pre-tilt angle is low. By using a photo-alignment film as an alignment film and applying it to the IPS method, it is possible to achieve both high contrast with reduced frontal light leakage and good viewing angle dependence with reduced oblique color change. Therefore, it is preferable to use the photoalignment film as the alignment film. In the photoalignment film, it is preferable to apply an orientation restricting force to the photoalignment film by a step of irradiating the photoalignment film with polarization from a vertical direction or an oblique direction or a step of irradiating the photoalignment film with unpolarized light from an oblique direction. When irradiating from an oblique direction, the oblique direction is preferably a direction at an angle of 5 to 45 degrees with respect to the photoalignment film, and more preferably a direction at an angle of 10 to 30 degrees. As the irradiation intensity, it is preferable to irradiate ultraviolet rays of 200 to 2000 mJ / cm ² .

In the optically anisotropic film obtained by vertically aligning the specific compound of the present invention represented by the above formula (1), a desired alignment state can be obtained by using a vertical alignment film or a vertical alignment agent. For the vertical alignment film, reference can be made to paragraphs [0083] to [2002] of JP-A-2002-294240, and for the vertical alignment agent, paragraphs [0083] to [0083] of JP-A-2006-106662 can be referred to. ..

(Control of phase transition)
As already mentioned, the liquid crystal phase of a liquid crystal compound can generally be transferred by changes in temperature or pressure. In the case of a liquid crystal having a lyotropic property, it can be transferred by the amount of the solvent. In the present invention, it is preferable that the liquid crystal having a thermotropic property undergoes a phase transition by a temperature change in consideration of the subsequent operation of fixing the orientation state.
Hereinafter, the case of fixing the state of the horizontally oriented smectic phase will be described as an example.

The temperature range in which the liquid crystal compound expresses the nematic phase is generally higher than the temperature range in which the liquid crystal compound expresses the smectic phase with higher order. Therefore, the liquid crystal compound is changed from the nematic phase to the smectic phase by heating the liquid crystal compound to the temperature range in which the liquid crystal compound expresses the nematic phase and then lowering the heating temperature to the temperature range in which the liquid crystal compound expresses the smectic phase. It is preferable to transfer.

The temperature at which the polymerizable composition of the present invention changes from the smectic phase to the nematic phase is preferably 160 ° C. or lower, more preferably 150 ° C. or lower, and particularly preferably 140 ° C. or lower. The lower limit of the temperature for transitioning from the smectic phase to the nematic phase is not particularly limited, but is generally 20 ° C. or higher.
The lower the phase transition temperature is, the more options are available from the viewpoint of heat resistance of the material used for the support and the alignment layer, which is preferable.

Here, the temperature at which the compound changes from the smectic phase to the nematic phase can be easily measured by observing the composition with a polarizing microscope. For example, in the nematic phase, the Schlieren texture peculiar to the nematic phase is observed, but in the smectic A phase, it shifts to the focal conic fan texture, so by observing the texture with a polarizing microscope while raising or lowering the temperature. Can be measured.

In the temperature range where the polymerizable composition develops a nematic phase, it is necessary to heat for a certain period of time until the polymerizable composition forms a monodomain. The heating time is preferably 10 seconds to 20 minutes, more preferably 10 seconds to 10 minutes, and most preferably 10 seconds to 5 minutes.
In the temperature range where the polymerizable composition expresses the smectic phase, it is necessary to heat the polymerizable composition for a certain period of time until the polymerizable composition develops the smectic phase. The heating time is preferably 10 seconds to 20 minutes, more preferably 10 seconds to 10 minutes, and most preferably 10 seconds to 5 minutes.

Further, by using a polymerizable composition that expresses a higher-order smectic phase at the same time as the nematic phase as the polymerizable composition of the present invention, the nematic phase also has less light scattering components unlike the normal nematic phase. , It can be a nematic phase that can realize high contrast.

Therefore, in the present invention, it is also a preferred embodiment to heat the polymerizable composition in a temperature range in which the nematic phase is expressed to form a monodomain in this temperature range, and then to immobilize the composition. It has been discovered that the optically anisotropic film produced in such an embodiment has a significantly higher contrast than the optically anisotropic film produced from a polymerizable composition that expresses only a normal nematic phase.
In the temperature range where the polymerizable composition develops a nematic phase, it is necessary to heat for a certain period of time until the polymerizable composition forms a monodomain. The heating time is preferably 10 seconds to 20 minutes, more preferably 10 seconds to 10 minutes, and most preferably 10 seconds to 5 minutes.

In addition, when using a composition that undergoes a transition in the order of smectic phase → nematic phase → isotropic phase as the temperature rises, the above polymerizable composition is once subjected to the phase transition temperature of the nematic phase-isotropic phase. After heating above, the temperature is gradually lowered below the phase transition temperature of the smectic phase-nematic phase or the phase transition temperature of the smectic phase-isotropic phase at a predetermined rate, thereby passing through the nematic phase and then smectic. It can be transferred to the phase. The temperature after the decrease is preferably 10 ° C. or more lower than the phase transition temperature of the smectic phase-nematic phase or the phase transition temperature of the smectic phase-isotropic phase. The cooling rate is preferably in the range of 1 to 100 ° C./min, and preferably in the range of 5 to 50 ° C./min. If the cooling rate is too fast, orientation defects will occur, and if it is too slow, manufacturing time will be long.

Further, in the present invention, the tilt angle of the optically anisotropic film can be controlled by tilting the liquid crystal compound molecule in a state where the primary structure of the smectic phase is appropriately separated.
As means for controlling the tilt angle of the liquid crystal compound, a method of imparting a pre-tilt angle by an alignment film whose rubbing conditions are controlled, and a polar angle on the support side or the air interface side by adding a tilt angle control agent to the liquid crystal layer. There is a method of controlling the above, and it is preferable to use them together.
The tilt angle control agent can use, for example, a copolymer of a fluoroaliphatic group-containing monomer, a polymer with an aromatic fused ring functional group, or a carboxyl group, a sulfo group, a phosphonoxy group, or a salt thereof. It is preferable to use a copolymer with the containing monomer. Further, by using a plurality of tilt angle control agents, more precise and stable control becomes possible. As such an inclination angle control agent, the description in paragraphs 0022 to 0063 of JP-A-2008-257205 and paragraphs 0017 to 0124 of JP-A-2006-91732 can be referred to.

<Fixing the orientation state>
The orientation state can be fixed by thermal polymerization or polymerization by an active energy ray, and can be carried out by appropriately selecting a polymerizable group or a polymerization initiator suitable for the polymerization. In consideration of manufacturing aptitude and the like, a polymerization reaction by irradiation with ultraviolet rays can be preferably used. When the irradiation amount of ultraviolet rays is small, unpolymerized polymerizable liquid crystal and other polymerizable compounds remain, which causes temperature changes in optical characteristics and deterioration over time.
Therefore, it is preferable to determine the irradiation conditions so that the ratio of the remaining polymerizable compound is 5% or less, and the irradiation conditions depend on the formulation of the polymerizable composition and the film thickness of the optically anisotropic film, but as a guide. It is preferable to carry out the irradiation at an irradiation amount of 200 mJ / cm ² or more.

[Optical film]
The optical film of the present invention is an optical film having the optically anisotropic film of the present invention.
1A, 1B and 1C (hereinafter, these drawings are abbreviated as "FIG. 1" when no particular distinction is required) are schematic cross-sectional views showing an example of the optical film of the present invention, respectively.
Note that FIG. 1 is a schematic diagram, and the thickness relationship and positional relationship of each layer do not always match the actual ones, and the support, alignment film, and hardcoat layer shown in FIG. 1 all have an arbitrary configuration. It is a member.
The optical film 10 shown in FIG. 1 has a support 16, an alignment film 14, and an optically anisotropic film 12 in this order.
Further, as shown in FIG. 1B, the optical film 10 may have the hard coat layer 18 on the side opposite to the side where the alignment film 14 of the support 16 is provided, and as shown in FIG. 1C, the optical film 10 may have a hard coat layer 18. The hard coat layer 18 may be provided on the side of the optically anisotropic film 12 opposite to the side on which the alignment film 14 is provided.
Hereinafter, various members used in the optical film of the present invention will be described in detail.

[Optically anisotropic film]
The optically anisotropic film of the optical film of the present invention is the above-mentioned optically anisotropic film of the present invention.
In the optical film of the present invention, the thickness of the optically anisotropic film is not particularly limited, but is preferably 0.1 to 10 μm, more preferably 0.5 to 5 μm.

[Support]
As described above, the optical film of the present invention may have a support as a base material for forming an optically anisotropic film.
Such a support is preferably transparent, and specifically, the light transmittance is preferably 80% or more.

Examples of such a support include a glass substrate and a polymer film, and examples of the polymer film material include a cellulose-based polymer; an acrylic-based polymer having an acrylic acid ester polymer such as polymethylmethacrylate and a lactone ring-containing polymer. Polymers; thermoplastic norbornene polymers; polycarbonate polymers; polyester polymers such as polyethylene terephthalate and polyethylene naphthalate; styrene polymers such as polystyrene and acrylonitrile / styrene copolymers (AS resin); polyethylene, polypropylene, ethylene / propylene Polyolefin-based polymers such as polymers; Vinyl chloride-based polymers; Amido-based polymers such as nylon and aromatic polyamides; Imid-based polymers; Examples thereof include vinylidene chloride-based polymers; vinyl alcohol-based polymers; vinyl butyral-based polymers; allylate-based polymers; polyoxymethylene-based polymers; epoxy-based polymers; or polymers in which these polymers are mixed.
Further, the stator described later may also serve as such a support.

In the present invention, the thickness of the support is not particularly limited, but is preferably 5 to 60 μm, more preferably 5 to 30 μm.

[Alignment film]
When the optical film of the present invention has any of the above-mentioned supports, it is preferable that the optical film has an alignment film between the support and the optically anisotropic film. The support described above may also serve as an alignment film.

The alignment film is generally composed of a polymer as a main component. The polymer material for an alignment film has been described in a large number of documents, and a large number of commercially available products are available.
The polymer material used in the present invention is preferably polyvinyl alcohol or polyimide, and its derivatives. Particularly modified or unmodified polyvinyl alcohol is preferable.
For the alignment film that can be used in the present invention, for example, the alignment film described in International Publication No. 01/88574, page 43, lines 24 to 49, line 8; paragraphs [0071] to [00905] of Japanese Patent No. 3907735. ]. The modified polyvinyl alcohol described in [Japanese Patent Laid-Open No. 2012-155308; the liquid crystal alignment film formed by the liquid crystal alignment agent described in JP-A-2012-155308;

In the present invention, it is also preferable to use a photoalignment film as the alignment film because it is possible to prevent surface deterioration by not contacting the surface of the alignment film when the alignment film is formed.
The photoalignment film is not particularly limited, but is a polymer material such as a polyamide compound or a polyimide compound described in paragraphs [0024] to [0043] of International Publication No. 2005/096041; A liquid crystal alignment film formed by a liquid crystal alignment agent having a photo-oriented group; a trade name LPP-JP265CP manufactured by Polyimide Technologies, etc. can be used.

Further, in the present invention, the thickness of the alignment film is not particularly limited, but from the viewpoint of alleviating the surface irregularities that may exist on the support and forming an optically anisotropic film having a uniform film thickness, 0. It is preferably 01 to 10 μm, more preferably 0.01 to 1 μm, and even more preferably 0.01 to 0.5 μm.

[Hard coat layer]
The optical film of the present invention preferably has a hardcoat layer in order to impart physical strength to the film. Specifically, the hardcourt layer may be provided on the side opposite to the side where the alignment film of the support is provided (see FIG. 1B), and the side where the alignment film of the optically anisotropic film is provided. May have a hardcourt layer on the opposite side (see FIG. 1C).
As the hard coat layer, those described in paragraphs [0190] to [0196] of JP-A-2009-98658 can be used.

[Other optically anisotropic membranes]
The optical film of the present invention may have another optically anisotropic film in addition to the optically anisotropic film of the present invention.
That is, the optical film of the present invention may have a laminated structure of the optically anisotropic film of the present invention and another optically anisotropic film.
Such other optically anisotropic films are optically anisotropic obtained by using the above-mentioned inverse wavelength dispersible liquid crystal compound or other polymerizable compound (particularly, liquid crystal compound) without blending the above-mentioned specific compound. If it is a film, it is not particularly limited.
Here, in general, liquid crystal compounds can be classified into a rod-shaped type and a disk-shaped type according to their shapes. In addition, there are small molecule and high molecular types, respectively. A polymer generally refers to a molecule having a degree of polymerization of 100 or more (Polymer Physics / Phase Transition Dynamics, Masao Doi, p. 2, Iwanami Shoten, 1992). In the present invention, any liquid crystal compound can be used, but it is preferable to use a rod-shaped liquid crystal compound or a discotic liquid crystal compound (disk-shaped liquid crystal compound). Two or more kinds of rod-shaped liquid crystal compounds, two or more kinds of disk-shaped liquid crystal compounds, or a mixture of a rod-shaped liquid crystal compound and a disk-shaped liquid crystal compound may be used. For the immobilization of the above-mentioned liquid crystal compound, it is more preferable to form a rod-shaped liquid crystal compound having a polymerizable group or a disk-shaped liquid crystal compound, and the liquid crystal compound may have two or more polymerizable groups in one molecule. More preferred. When the liquid crystal compound is a mixture of two or more kinds, it is preferable that at least one kind of liquid crystal compound has two or more polymerizable groups in one molecule.
As the rod-shaped liquid crystal compound, for example, those described in claim 1 of JP-A No. 11-513019 and paragraphs [0026] to [0098] of JP-A-2005-289980 can be preferably used, and discotics can be used. As the liquid crystal compound, for example, those described in paragraphs [0020] to [0067] of JP-A-2007-108732 and paragraphs [0013] to [0108] of JP-A-2010-244038 can be preferably used. However, it is not limited to these.

[UV absorber]
The optical film of the present invention preferably contains an ultraviolet (UV) absorber in consideration of the influence of external light (particularly ultraviolet light).
The ultraviolet absorber may be contained in the optically anisotropic film of the present invention, or may be contained in a member other than the optically anisotropic film constituting the optical film of the present invention. As the member other than the optically anisotropic film, for example, a support is preferably mentioned.
As the ultraviolet absorber, any conventionally known agent capable of exhibiting ultraviolet absorption can be used. Among such ultraviolet absorbers, a benzotriazole-based or hydroxyphenyltriazine-based ultraviolet absorber may be used from the viewpoint of obtaining the ultraviolet absorbing ability (ultraviolet blocking ability) used in an image display device because of its high ultraviolet absorbing property. preferable.
Further, in order to widen the absorption range of ultraviolet rays, two or more kinds of ultraviolet absorbers having different maximum absorption wavelengths can be used in combination.
Specific examples of the ultraviolet absorber include the compounds described in paragraphs [0258] to [0259] of JP2012-18395, paragraphs [0055] to [0105] of JP2007-72163. Examples thereof include the compounds described in.
Further, as commercially available products, Tinuvin 400, Tinuvin 405, Tinuvin 460, Tinuvin 477, Tinuvin 479, Tinuvin 1577 (all manufactured by BASF) and the like can be used.

[Polarizer]
The polarizing plate of the present invention has the above-mentioned optical film of the present invention and a polarizing element.
Further, the polarizing plate of the present invention can be used as a circular polarizing plate when the above-mentioned optically anisotropic film of the present invention is a λ / 4 wave plate (positive A plate).
Further, in the polarizing plate of the present invention, when the above-mentioned optically anisotropic film of the present invention is a λ / 4 wave plate (positive A plate), the slow axis of the λ / 4 wave plate and absorption of a splitter described later are absorbed. The angle formed with the shaft is preferably 30 to 60 °, more preferably 40 to 50 °, further preferably 42 to 48 °, and particularly preferably 45 °.
Here, the "slow-phase axis" of the λ / 4 wave plate means the direction in which the refractive index becomes maximum in the plane of the λ / 4 wave plate, and the "absorption axis" of the substituent means the direction in which the absorbance is highest. Means.

[Polarizer]
The polarizing plate of the polarizing plate of the present invention is not particularly limited as long as it is a member having a function of converting light into a specific linear polarization, and conventionally known absorption-type and reflection-type splitters can be used. ..
As the absorption type polarizing element, an iodine-based polarizing element, a dye-based polarizing element using a dichroic dye, a polyene-based polarizing element, and the like are used. Iodine-based splitters and dye-based splitters include coated and stretched splitters, both of which can be applied, but polarized light produced by adsorbing iodine or a dichroic dye on polyvinyl alcohol and stretching it. Children are preferred.
Further, as a method for obtaining a polarizing element by stretching and dyeing a laminated film in which a polyvinyl alcohol layer is formed on a substrate, Japanese Patent No. 5048120, Japanese Patent No. 5143918, Japanese Patent No. 4691205, and Patent No. 5048120, Patent No. Japanese Patent No. 4751481 and Japanese Patent No. 4751486 can be mentioned, and known techniques relating to these substituents can also be preferably used.
As the reflective classifier, a splitter in which thin films having different birefringences are laminated, a wire grid type splitter, a carboxylator in which a cholesteric liquid crystal having a selective reflection region and a 1/4 wave plate are combined, and the like are used.
Among them, at least one selected from the group consisting of a polyvinyl alcohol-based resin (a polymer containing _-CH2 -CHOH- as a repeating unit, particularly a polyvinyl alcohol and an ethylene-vinyl alcohol copolymer) in that the adhesion is more excellent. It is preferable that the polymer contains one).

In the present invention, the thickness of the polarizing element is not particularly limited, but is preferably 1 μm to 60 μm, more preferably 2 μm to 30 μm, and even more preferably 3 μm to 15 μm.

[Adhesive layer]
In the polarizing plate of the present invention, an adhesive layer may be arranged between the optically anisotropic film in the optical film of the present invention and the polarizing element.
The pressure-sensitive adhesive layer used for laminating the optically anisotropic film and the stator is, for example, the ratio of the storage elastic modulus G'and the loss elastic modulus G'measured by a dynamic viscoelasticity measuring device (tan δ =). G "/ G') represents a substance having a value of 0.001 to 1.5, and includes so-called adhesives, substances that easily creep, and the like. Examples of the pressure-sensitive adhesive that can be used in the present invention include, but are not limited to, polyvinyl alcohol-based pressure-sensitive adhesives.

[Image display device]
The image display device of the present invention is an image display device having the optical film of the present invention or the polarizing plate of the present invention.
The display element used in the image display device of the present invention is not particularly limited, and examples thereof include a liquid crystal cell, an organic electroluminescence (hereinafter abbreviated as “EL”) display panel, and a plasma display panel.
Of these, a liquid crystal cell and an organic EL display panel are preferable, and a liquid crystal cell is more preferable. That is, the image display device of the present invention is preferably a liquid crystal display device using a liquid crystal cell as a display element and an organic EL display device using an organic EL display panel as a display element, and the liquid crystal display device is preferable. More preferred.

[Liquid crystal display device]
The liquid crystal display device, which is an example of the image display device of the present invention, is a liquid crystal display device having the above-mentioned polarizing plate of the present invention and a liquid crystal cell.
In the present invention, among the polarizing plates provided on both sides of the liquid crystal cell, it is preferable to use the polarizing plate of the present invention as the polarizing plate on the front side, and the polarizing plate of the present invention as the polarizing plate on the front side and the rear side. Is more preferable to use.
The liquid crystal cells constituting the liquid crystal display device will be described in detail below.

<LCD cell>
The liquid crystal cell used in the liquid crystal display device is a VA (Vertical Alignment) mode, an OCB (Optically Compensated Bend) mode, an IPS (In-Plane-Switching) mode, an FFS (Fringe-Field-Switching) mode, or a TN (Fringe-Field-Switching) mode. Twisted Nematic) mode is preferred, but is not limited to these.
In the liquid crystal cell in the TN mode, the rod-shaped liquid crystal molecules are substantially horizontally oriented when no voltage is applied, and are further twisted to 60 to 120 °. The TN mode liquid crystal cell is most often used as a color TFT liquid crystal display device, and has been described in many documents.
In the VA mode liquid crystal cell, the rod-shaped liquid crystal molecules are substantially vertically oriented when no voltage is applied. In the VA mode liquid crystal cell, (1) a VA mode liquid crystal cell in a narrow sense (1) in which rod-shaped liquid crystal molecules are oriented substantially vertically when no voltage is applied and substantially horizontally when a voltage is applied (Japanese Patent Laid-Open No. 2-). 176625 (described in Japanese Patent Publication No. 176625), and (2) a liquid crystal cell (SID97, Voltage of technique. Papers (Proceedings) 28 (1997) 845 in which the VA mode is multi-domainized for expanding the viewing angle. ), (3) Liquid crystal cells in a mode (n-ASM mode) in which rod-shaped liquid crystal molecules are substantially vertically oriented when no voltage is applied and twisted and multi-domain oriented when a voltage is applied. (1998)) and (4) SURVIVAL mode liquid crystal cell (announced at LCD International 98). Further, it may be any of PVA (Patternized Vertical Alignment) type, optical alignment type (Optical Alignment), and PSA (Polymer-Stained Alignment). Details of these modes are described in Japanese Patent Application Laid-Open No. 2006-215326 and Japanese Patent Application Laid-Open No. 2008-538819.
In the IPS mode liquid crystal cell, the rod-shaped liquid crystal molecules are oriented substantially parallel to the substrate, and the liquid crystal molecules respond in a plane by applying an electric field parallel to the substrate surface. In the IPS mode, the display is black when no electric field is applied, and the absorption axes of the pair of upper and lower polarizing plates are orthogonal to each other. Methods for reducing leakage light when displaying black in an oblique direction and improving the viewing angle by using an optical compensation sheet are described in JP-A-10-54982, JP-A-11-202323, and JP-A-9-292522. It is disclosed in JP-A-11-133408, JP-A-11-305217, JP-A-10-307291, and the like.

[Organic EL display device]
The organic EL display device, which is an example of the image display device of the present invention, includes, for example, a λ / 4 plate (positive A plate) made of a polarizing element, an optically anisotropic film of the present invention, and an organic EL from the viewing side. A mode having a display panel in this order is preferably mentioned.
Further, the organic EL display panel is a display panel configured by using an organic EL element formed by sandwiching an organic light emitting layer (organic electroluminescence layer) between electrodes (between a cathode and an anode). The configuration of the organic EL display panel is not particularly limited, and a known configuration is adopted.

The present invention will be described in more detail below based on examples. The materials, amounts used, ratios, treatment contents, treatment procedures, etc. shown in the following examples can be appropriately changed as long as they do not deviate from the gist of the present invention. Therefore, the scope of the present invention should not be construed as limiting by the examples shown below.

[Composite example]

[Side chain synthesis]

The synthesis of the carboxylic acid (CA-1) represented by the above formula (CA-1) was carried out by the method described in paragraphs [0092] to [00903] of International Publication No. 2019/017444.
The synthesis of the carboxylic acid (CA-2) was carried out by the method described in paragraph [0227] of JP-A-2019-73496A.
The synthesis of the carboxylic acid (CA-3) represented by the above formula (CA-3) is carried out in paragraphs [0122] to [0125] with reference to paragraphs [0108] to [0109] of JP-A-2016-081035. It was done by the method described in.
The carboxylic acid (CA-4) represented by the above formula (CA-4) is 4-methylsulfonyl with reference to the method described in paragraphs [0092] to [093] of International Publication No. 2019/017444. Oxybutyl acrylate was synthesized in the same manner except that it was changed to 2-methylsulfonyloxyethyl methacrylate.
The carboxylic acid (CA-5) represented by the above formula (CA-5) can be obtained in 4,4'with reference to the methods described in paragraphs [0092] to [00903] of International Publication No. 2019/017444. -Dicyclohexanedicarboxylic acid was synthesized in the same manner except that it was changed to 1,4-trans-cyclohexanedicarboxylic acid.

[Synthesis of core]

<Synthesis of intermediate (S-1-b)>
The synthesis of the intermediate (S-1-b) in the above scheme uses 4,4'-hydroxybiphenyl (S-1-a) as a raw material and is described in paragraph [0226] of JP-A-2019-73496. Got the way it was done.

<Synthesis of intermediate (S-1-d)>
Mix 1,3-dimethyl-2-thiohydantoin (S-1-c) 155 mg (0.997 mmol), intermediate (S-1-b) 115 mg (0.475 mmol), and toluene 50 mL at room temperature, and mix 140 μL of piperidine. After adding (1.42 mmol), the mixture was heated under reflux for 3 hours. Then, after cooling to room temperature, the precipitated solid was collected by filtration and washed with toluene to obtain 210 mg (0.425 mmol) of the intermediate (S-1-d).

<Synthesis of intermediate (S-8-d)>
Mix 3-methylthiazolidine-2,4-dione (S-8-c) 131 mg (0.997 mmol), intermediate (S-1-b) 115 mg (0.475 mmol) and toluene 50 mL at room temperature and piperidine. After adding 140 μL (1.42 mmol), the mixture was heated under reflux for 3 hours. Then, after cooling to room temperature, the precipitated solid was collected by filtration and washed with toluene to obtain 189 mg (0.404 mmol) of the intermediate (S-8-d).

<Synthesis of intermediate (S-9-d)>
7,7-diethyl-1-methyl-6H-pyrazolo [1,2-a] [1,2,4] triazine-4,6,8 (3H, 7H) -trione (S-9-c) 237 mg ( 0.997 mmol), 115 mg (0.475 mmol) of the intermediate (S-1-b), and 50 mL of toluene were mixed at room temperature, 140 μL (1.42 mmol) of piperidine was added, and then the mixture was heated under reflux for 3 hours. Then, after cooling to room temperature, the precipitated solid was collected by filtration and washed with toluene to obtain 226 mg (0.333 mmol) of the intermediate (S-9-d).

[Synthesis of compound S-1]
Compound S-1 represented by the following formula was synthesized by the method described below.

231 mg (0.607 mmol) of carboxylic acid (CA-1) was dissolved in 10 mL of N, N-dimethylformamide at room temperature, and N, N-dimethylaminopyridine 50 mg (0.404 mmol), 1- (3- (3-). Dimethylaminopropyl) -3-ethylcarbodiimide (775 mg, 4.04 mmol) was added and stirred at room temperature to dissolve.
To this, 100 mg (0.202 mmol) of the intermediate (S-1-d) was added, and the mixture was stirred at room temperature for 6 hours. The precipitated solid was collected by filtration and washed with methanol to obtain 159 mg (0.130 mmol) of compound S-1.
The ¹ H-NMR (Nuclear Magnetic Resonance) data of the obtained compound S-1 is shown below.
^{1 1} HNMR (CDCl ₃ ) δ (ppm) = 8.46 (d, J = 2.0Hz, 2H), 7.70 (dd, J = 8.4, 2.0Hz, 2H), 7.18 (d) , J = 8.4Hz, 2H), 6.45 (s, 2H), 6.41 (dd, J = 17.2, 1.6Hz, 2H), 6.13 (dd, J = 17.2) 10.4Hz, 2H), 5.84 (dd, J = 10.4, 1.6Hz, 2H), 4.19 (t, 6.0Hz, 4H), 4.10 (t, 5.8Hz, 4H) ), 3.59 (s, 6H), 3.36 (s, 6H), 2.53-2.50 (m, 2H), 2.26-2.14 (m, 6H), 2.07- 1.98 (m, 4H), 1.90-1.73 (m, 16H), 1.48-1.37 (m, 4H), 1.17-1.00 (m, 16H).
Then, 2.9 mg of compound S-1 was dissolved in chloroform (10 mL) and further diluted to 1/10 to obtain a solution. When the ultraviolet-visible absorption spectrum (UV-3100PC, manufactured by Shimadzu Corporation) of the obtained solution was measured, the absorption maximum wavelength was 377 nm.

[Synthesis of compound S-2]
Compound S-2 represented by the following formula was synthesized by the method described below.

The intermediate (S-2-b) is synthesized by using 2,5-dimethoxybenzene-1,4-dicarboxyaldehyde as a raw material and by the method described in paragraph [0242] of JP-A-2019-120945. gone.
The intermediate (S-2-d) is the same as the method for synthesizing the intermediate (S-1-d) except that the intermediate (S-1-b) is changed to the intermediate (S-2-b). Synthesized by the method.

<Synthesis of compound S-2>
Compound S-2 was synthesized in the same manner as in Compound S-1, except that the intermediate (S-2-d) was used instead of the intermediate (S-1-d). The absorption maximum wavelength measured by the same method as that of compound S-1 was 410 nm.

[Synthesis of compound S-3]
Compound S-3 represented by the following formula was synthesized by the method described below.

Substituting 1,3-dimethylbarbituric acid (S-3-c) for 1,3-dimethyl-2-thiohydantoin (S-1-c) in the synthesis of intermediate (S-1-d) In, the intermediate (S-3-d) was synthesized.

<Synthesis of compound S-3>
Compound S-3 was synthesized in the same manner as in Compound S-1, except that the intermediate (S-3-d) was used instead of the intermediate (S-1-d). The absorption maximum wavelength measured by the same method as that of compound S-1 was 330 nm.

[Synthesis of compound S-4]
Compound S-4 represented by the following formula was synthesized by the method described below.

Instead of 1,3-dimethyl-2-thiohydantoin (S-1-c) in the synthesis of intermediate (S-1-d), 1,3-diethyl-2-thiobarbituric acid (S-4-c) ) Was used to synthesize an intermediate (S-4-d).

<Synthesis of compound S-4>
Compound S-4 was synthesized in the same manner as in Compound S-1, except that the intermediate (S-4-d) was used instead of the intermediate (S-1-d). The absorption maximum wavelength measured by the same method as that of compound S-1 was 365 nm.

[Synthesis of compound S-5]
Compound S-5 represented by the following formula was synthesized by the method described below.

Instead of 1,3-dimethyl-2-thiohydantoin (S-1-c) in the synthesis of intermediate (S-1-d), 3-cyano-1-ethyl-6-hydroxy-4-methyl-2- An intermediate (S-5d) was synthesized by using pyridone (S-5-c).

<Synthesis of compound S-5>
Compound S-5 was synthesized in the same manner as in Compound S-1, except that the intermediate (S-5-d) was used instead of the intermediate (S-1-d). The absorption maximum wavelength measured by the same method as that of compound S-1 was 355 nm.

[Synthesis of compound S-6]
Compound S-6 represented by the following formula was synthesized by the method described below.

Mix 1,3-indandione (S-6-c) 64 mg (0.43 mmol), intermediate (S-1-b) 50 mg (0.21 mmol), and toluene 5 mL at room temperature, and mix 60 μL of piperidine (0. After adding 61 mmol), the mixture was heated under reflux for 3 hours. Then, after cooling to room temperature, the precipitated solid was collected by filtration and washed with toluene to obtain 70 mg (0.14 mmol) of the intermediate (S-6-d).

<Synthesis of compound S-6>
82 mg (0.21 mmol) of carboxylic acid (CA-1) was dissolved in 4 mL of N, N-dimethylformamide at room temperature, and N, N-dimethylaminopyridine 17 mg (0.14 mmol), 1- (3- (3-). 88 mg (0.46 mmol) of dimethylaminopropyl) -3-ethylcarbodiimide was added, and the mixture was stirred at room temperature. To this, 35 mg (0.070 mmol) of the intermediate (S-6-d) was added, and the mixture was stirred at room temperature for 2 hours. The precipitated solid was collected by filtration and washed with methanol to obtain 24 mg (0.020 mmol) of compound S-6. The absorption maximum wavelength measured by the same method as that of compound S-1 was 341 nm.
The ¹ H-NMR data of the obtained compound S-6 is shown below.
^{1 1} HNMR (CDCl ₃ ) δ (ppm) = 9.37 (d, J = 2.2Hz, 2H), 8.10-7.98 (m, 8H), 7.87-7.80 (m, 4H) ) 7.34 (d, J = 8.4Hz, 2H), 6.42 (dd, J = 17.3, 1.4Hz, 2H), 6.13 (dd, J = 17.3, 10.4Hz) , 2H), 5.84 (dd, J = 10.4, 1.4Hz, 2H), 4.20 (t, 6.1Hz, 4H), 4.11 (t, 5.9Hz, 4H), 2 .69-2.60 (m, 2H), 2.35-2.19 (m, 6H), 2.07-1.60 (m, 20H), 1.49-1.36 (m, 4H) , 1.27-1.00 (m, 16H)

[Synthesis of compound S-7]
Compound S-7 represented by the following formula was synthesized by the method described below.

Instead of 1,3-dimethyl-2-thiohydantoin (S-1-c) in the intermediate (S-1-d), 1,2-dibutyl-3,5-pyrazolidinedione (S-7-) By using c), an intermediate (S-7-d) was synthesized.

<Synthesis of compound S-7>
Compound S-1 except that the intermediate (S-7-d) is used instead of the intermediate (S-1-d) and the intermediate (CA-2) is used instead of the intermediate (CA-1). Compound S-7 was synthesized in the same manner as above. The absorption maximum wavelength measured by the same method as that of compound S-1 was 322 nm.

[Synthesis of compound S-8]
Compound S-8 represented by the following formula was synthesized by the method described below.

Mix 3-methylthiazolidine-2,4-dione (S-8-c) 131 mg (0.997 mmol), intermediate (S-1-b) 115 mg (0.475 mmol) and toluene 50 mL at room temperature and piperidine. After adding 140 μL (1.42 mmol), the mixture was heated under reflux for 3 hours. Then, after cooling to room temperature, the precipitated solid was collected by filtration and washed with toluene to obtain 189 mg (0.404 mmol) of the intermediate (S-8-d).

<Synthesis of compound S-8>
Compound S-8 was synthesized in the same manner as in Compound S-1, except that the intermediate (S-8-d) was used instead of the intermediate (S-1-d). The absorption maximum wavelength measured by the same method as that of compound S-1 was 354 nm.

[Synthesis of compound S-9]
Compound S-9 represented by the following formula was synthesized by the method described below.

<Synthesis of compound S-9>
Compound S-9 was synthesized in the same manner as in Compound S-1, except that the intermediate (S-9-d) was used instead of the intermediate (S-1-d). The absorption maximum wavelength measured by the same method as that of compound S-1 was 341 nm.

[Synthesis of compound S-10]
Compound S-10 represented by the following formula was synthesized by the method described below.

<Synthesis of compound S-10>
Compound S-10 was synthesized in the same manner as in Compound S-1, except that the following intermediate (S-10-d) was used instead of the intermediate (S-1-d). The absorption maximum wavelength measured by the same method as that of compound S-1 was 322 nm.

[Synthesis of compound S-1-2]
Compound S-1-2 represented by the following formula was synthesized by the method described below.

<Synthesis method of compound S-1-2>
Compound S-1-2 was synthesized in the same manner as in Compound S-1, except that the carboxylic acid (CA-2) was used instead of the carboxylic acid (CA-1).

[Synthesis of compounds S-1-3 to S-1-5]
The compounds S-1-3 to S-1-5 represented by the following formulas were synthesized by the methods described below.

<Synthesis of compounds S-1-3 to S-1-5>
Compounds S-1-3 to S-1- are the same as those of compound S-1, except that carboxylic acid (CA-3) to carboxylic acid (CA-5) are used instead of carboxylic acid (CA-1). 5 was synthesized.

[Example 1]
[Manufacturing of optical film]
A polymerizable composition having the following composition was prepared and applied to a glass substrate with a rubbing-treated polyimide alignment film (SE-130 manufactured by Nissan Chemical Industries, Ltd.) by spin coating.
The coating film was oriented at 180 ° C. to form a liquid crystal layer.

―――――――――――――――――――――――――――――――――
Polymerizable composition ――――――――――――――――――――――――――――――――――
-The following polymerizable liquid crystal compound II-1 12.00 parts by mass-The following specific compound S-1 3.00 parts by mass-The following fluorine-containing compound A 0.12 parts by mass-Chloroform 35.00 parts by mass ―――――― ―――――――――――――――――――――――――――

Polymerizable liquid crystal compound II-1

Specific compound S-1

Fluorine-containing compound A

<Letteration>
With respect to the produced optical film, a retardation value (Re (450)) having a wavelength of 450 nm and a retardation value (Re (550)) having a wavelength of 550 nm were obtained using Axo Scan (OPMF-1, manufactured by Optoscience). When it was measured and Re (450) / Re (550) was calculated, Re (450) was 56.2 nm, Re (550) was 70.3 nm, and Re (450) / Re (550) = 0.80. rice field.

[Comparative Example 1]
An optical film was produced by the same method as in Example 1 except that the specific compound S-1 was changed to the following compound R-1. Compound R-1 was synthesized according to the synthesis method described in paragraphs [0163] to [0168] of JP-A-2018-87152.
For the obtained optical film, the retardation value (Re (450)) having a wavelength of 450 nm and the retardation value (Re (550)) having a wavelength of 550 nm are measured, and Re (450) / Re (550) is calculated. As a result, Re (450) was 51.0 nm, Re (550) was 52.1 nm, and Re (450) / Re (550) = 0.98.

Compound R-1

From the results of Example 1 and Comparative Example 1, it was found that the inverse wavelength dispersibility of the formed optically anisotropic film was inferior when the specific compound was not blended (Comparative Example 1).
On the other hand, it was found that when a specific compound was blended, an optically anisotropic film having excellent reverse wavelength dispersibility could be formed (Example 1).

[Examples 2 to 10]
An optical film was produced in the same manner as in Example 1 except that the specific compound was changed to the compound shown in Table 16 below.
Further, with respect to the produced optically anisotropic film, the retardation value (Re (450)) having a wavelength of 450 nm and the retardation value (Re (550)) having a wavelength of 550 nm were measured, and Re (450) / Re ( 550) was calculated. The wavelength dispersibility was evaluated according to the following evaluation criteria. These results are shown in Table 16 below.

(Evaluation criteria for wavelength dispersibility)
Wavelength dispersibility x = Re (450) / Re (550)
A: x <0.85
B: 0.85 ≤ x <0.90
C: 0.90≤x <0.95
D: 0.95 ≤ x

From the results shown in Table 16 above, it was found that when other specific compounds were blended, an optically anisotropic film having excellent reverse wavelength dispersibility could be formed as in Example 1 (Examples 2 to 10).

[Example 11]
[Manufacturing of optical film]
A polymerizable composition (coating liquid for an optically anisotropic film) having the following composition was prepared, and a glass substrate with a polyimide alignment film (SE-150 manufactured by Nissan Chemical Industry Co., Ltd.) subjected to a rubbing treatment was spin-coated. Applied. After the coating film is heated and oriented on a hot plate to form a liquid crystal layer. After the temperature was lowered, the orientation was fixed by irradiation with ultraviolet rays of 1000 mJ / cm ² , an optically anisotropic film was formed, and an optical film for wavelength dispersion measurement was obtained.
―――――――――――――――――――――――――――――――――
Optically anisotropic layer film coating liquid ――――――――――――――――――――――――――――――――――
-Polymerizable liquid crystal compound II-1 15.00 parts by mass-Specific compound S-7 3.00 parts by mass-Photopolymerization initiator (Irgacure 819, manufactured by BASF) 0.45 parts by mass-Fluorine-containing compound A 0.12 Parts by mass / chloroform 35.00 parts by mass ――――――――――――――――――――――――――――――――――

With respect to the optically anisotropic film thus produced, the retardation value (Re (450)) having a wavelength of 450 nm and the retardation value (Re (550)) having a wavelength of 550 nm were measured, and Re (450) / Re. (550) was calculated. The wavelength dispersibility was evaluated according to the same evaluation criteria as in Examples 2 to 10, and was evaluated as B. From this, it was found that an optically anisotropic film having excellent reverse wavelength dispersibility can be formed also in Example 11.

[Examples 12 to 17]
An optical film was produced in the same manner as in Example 1 except that the specific compound was changed to the compound shown in Table 15 below.
Further, for the produced optically anisotropic film, the retardation value (Re (450)) having a wavelength of 450 nm and the retardation value (Re (550)) having a wavelength of 550 nm were measured by the same method as in Example 1. Then, Re (450) / Re (550) was calculated and evaluated. These results are shown in Table 17 below.

In Table 17 above, the structures of the specific compounds S-11, S-12 and S-13 are shown below.

Compound S-11

Compound S-12

Compound S-13

From the results shown in Table 17 above, it was found that when a specific compound was blended, an optically anisotropic film having excellent reverse wavelength dispersibility could be formed as in Example 1 (Examples 12 to 17).

10 Optical film 12 Optical anisotropic film 14 Alignment film 16 Support 18 Hardcourt layer

Claims

A compound represented by the following formula (1).

Here, in the above formula (1),
C represents a group represented by any of the following formulas (C-1) to (C-4).
n represents an integer of 2 to 4, and the plurality of Cs may be the same or different.
A core represents an n + divalent group having 4 to 18 carbon atoms, which is a monocyclic, condensed ring or ring-aggregated aromatic group which may have a substituent.
L 1 , L 2 , L 3 and L 4 are independently single-bonded or -CO-, -O-, -S-, -C (= S)-, -CR 11 R 12 -,-, respectively. CR 13 = CR 14- , -C≡C-, -NR 15- , -N = CR 16- , -N = N-, or a divalent linking group consisting of two or more of these. R 11 to R 16 independently represent a hydrogen atom, a fluorine atom, or an alkyl group having 1 to 12 carbon atoms.
A 1 and A 2 may independently have a substituent, cyclohexane-1,4-diyl group, cyclopentane-1,3-diyl group, cycloheptane-1,3-diyl group, respectively. It represents a cycloheptane-1,4-diyl group, a decahydronaphthalene-2,6-diyl group, or a 1,3-dioxane-2,5-diyl group.
A 3 and A 4 may independently have a substituent, cyclohexane-1,4-diyl group, cyclopentane-1,3-diyl group, cycloheptane-1,3-diyl group, respectively. Cycloheptane-1,4-diyl group, benzene-1,4-diyl group, pyridine-2,5-diyl group, pyrimidine-2,5-diyl group, naphthalene-2,6-diyl group, naphthalene-2, 7-Diyl group, naphthalene-1,4-diyl group, tetrahydronaphthalene-2,6-diyl group, decahydronaphthalene-2,6-diyl group, or 1,3-dioxane-2,5-diyl group show.
m1 and m2 each independently represent an integer of 0 to 4. However, when m1 represents an integer of 2 to 4 , the plurality of L3 and A3 may be the same or different, respectively, and when m2 represents an integer of 2 to 4 , a plurality of L4 and A may be present. 4 may be the same or different from each other.
R 1 and R 2 each independently represent a group represented by the following formula (R-1).
Equation (R-1): -L 5 -R sp1 -Z 1
Here, in the above formula (R-1),
L 5 is a single bond, or -CO-, -O-, -S-, -C (= S)-, -CR 11 R 12- , -CR 13 = CR 14- , -C≡C-, -NR 15- , -N = CR 16- , -N = N-, or a divalent linking group consisting of two or more of these, and R 11 to R 16 are independent hydrogen atoms. , A fluorine atom, or an alkyl group having 1 to 12 carbon atoms.
R sp1 represents an alkylene group having 1 to 20 carbon atoms or a single bond. However, one -CH 2- or two or more non-adjacent -CH 2- constituting the alkylene group independently have -O-, -COO-, -OCO-, and -OCO-O, respectively. -, -CO-NH-, -NH-CO-, -CH = CH-, or -C≡C- may be substituted.
Z 1 represents a hydrogen atom or a polymerizable group.

Here, in the above formula (C-1),
* Represents the binding position with A core .
M represents -CH = CH-, -N = CH-, -CH = N-, or -N = N-.
D represents a group represented by any of the following formulas (D-1) to (D-10) which may have a substituent.

Here, in the formulas (D-1) to (D-10),
* Represents the bond position with M.
D 1 represents -O-, -S-, or -NR D1- , and RD 1 is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkanoyl group having 1 to 5 carbon atoms, or a substituent. Represents a phenyl that may have.
R d1 and R d2 each independently represent an alkyl group having 1 to 20 carbon atoms which may have a substituent. However, one -CH 2- or two or more non-adjacent -CH 2- constituting the alkyl group independently have -O-, -S-, -CO-, -COO-, respectively. -OCO-, -CO-S-, -S-CO-, -SO 2- , -O-CO-O-, -CO-NH-, -NH-CO-, -CH = CH-COO-,- It may be substituted with CH = CH-OCO-, -COO-CH = CH-, -OCO-CH = CH-, -CH = CH-, -CF = CF-, or -C≡C-. Further, R d1 and R d2 may be bonded to each other to form a non-aromatic hydrocarbon ring having a 3- to 7-membered ring, and the non-aromatic hydrocarbon ring may have a substituent. , The carbon atom constituting the non-aromatic hydrocarbon ring may be substituted with a hetero atom.
-CH = constituting the ring structure in the formulas (D-1) to (D-10) may be replaced with -N =. However, at least one -CH = constituting the ring structure in the formulas (D-1) and (D-5) is replaced with -N =.

Here, in the above formula (C-2),
* Represents the binding position with A core .
J 1 represents a hydrogen atom or an alkyl group.
B 1 represents -C (= X 1 ) -B 11 or -CN. However, B 11 represents a substituent, X 1 represents = O, = S, = NR, or = C (CN) 2 , and R represents a substituent.
B 2 represents a hydrogen atom or a substituent.

Here, in the above formula (C-3),
* Represents the binding position with A core .
J 2 represents a hydrogen atom or an alkyl group.
Y 1 represents an atomic group required to form a carbocycle or a heterocycle.
G represents the atomic group required to complete the conjugated double bond chain.
x represents 0 or 1.
X 2 represents = O, = S, = NR, or = C (CN) 2 , and R represents a substituent.

Here, in the above formula (C-4),
* Represents the binding position with A core .
R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom or substituent.
X 3 represents O, S, or NR 5 , and R 5 represents a hydrogen atom or substituent.
J 3 represents a hydrogen atom or an alkyl group.
C in the formula (1) represents a group represented by the formula (C-3).
In the formula (C-3), x represents 0, X 2 represents O or S, and is composed of Y 1 and −C (= C)-(G) x—C (= X 2 ) −. The compound according to claim 1, wherein the ring structure to be formed is a 5-membered ring or a 6-membered ring carbocyclic ring or a heterocyclic ring.
However, the carbocycle or the heterocycle may have a substituent or may form a fused ring with another 4- to 7-membered ring.
C in the formula (1) represents a group represented by the formula (C-4).
The compound according to claim 1, wherein X 3 in the formula (C-4) represents O, R 1 and R 2 represent an alkyl group, and R 3 and R 4 represent a hydrogen atom.
Claims 1 to 3 in which the partial structure represented by the following formula (1-1) in the above formula (1) is a structure represented by the following formula (1-1a) or the following formula (1-1b). The compound according to any one of the above.

Here, in the formulas (1-1), (1-1a) and (1-1b), * represents a binding position, and C, n and A core are C, n in the formula (1). And A core .
Further, in the above equation (1-1b), n1 and n2 each independently represent an integer of 0 to 2. However, the sum of n1 and n2 represents an integer of 2 to 4.
The compound according to any one of claims 1 to 4, wherein A 1 and A 2 in the formula (1) represent a trans-cyclohexane-1,4-diyl group.
Z 1 in the formula (R-1) represents a polymerizable group.
Any one of claims 1 to 5, wherein the polymerizable group represents any polymerizable group selected from the group consisting of groups represented by the following formulas (P-1) to (P-20). The compound described in.

Here, in the formulas (P-1) to (P-20), * represents a binding position with R sp1 in the formula (R-1).
The compound according to claim 6, wherein the polymerizable group is a group represented by the formula (P-1) or (P-2).
The compound according to any one of claims 1 to 7, wherein m1 and m2 in the formula (1) independently represent an integer of 0 to 1.
A polymerizable composition containing the compound according to any one of claims 1 to 8.
An optically anisotropic film obtained by polymerizing the polymerizable composition according to claim 9.
An optical film having the optically anisotropic film according to claim 10.
A polarizing plate having the optical film according to claim 11 and a polarizing element.
An image display device having the optical film according to claim 11 or the polarizing plate according to claim 12.