JP2011225806A - Colored curable composition, color filter and method for producing the same, and liquid crystal display element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a colored curable composition which exhibits a good hue and contains few free metal ions.SOLUTION: The colored curable composition comprises (A) a metal complex dye, (B) a compound having the same dye matrix as the metal complex dye and formable of a metal complex, and (C) a polymerizable compound, wherein the proportion of the compound (B) to the metal complex dye (A) is 0.1-10 mass%.

Description

  The present invention relates to a colored curable composition using a metal complex as a colorant, a color filter, a method for producing the same, and a liquid crystal display element.

  A pigment dispersion method is widely used as one of methods for producing a color filter used for a liquid crystal display device, a solid-state imaging device, or the like. As a pigment dispersion method, there is a method of producing a color filter by a photolithography method using a colored radiation-sensitive composition in which a pigment is dispersed in various photosensitive compositions. This method is stable to light and heat because it contains a pigment, and is patterned by a photolithographic method, so that the positional accuracy is sufficiently secured and suitable for the production of a color filter for a color display, etc. Has been.

  In addition to pigments, colorants such as dyes are widely used as colorants used in the production of color filters. For example, metal complex dyes are used. For example, dyes such as phthalocyanine and pyromethene metal complexes are known.

  As a technique related to the above, a photosensitive colored curable composition containing a dipyrromethene-based metal complex compound having a specific structure or a tetraazaporphyrin-based cyan dye as a colorant is disclosed (for example, see Patent Document 1). This composition is excellent in color purity and can be thinned.

JP 2008-292970 A

  However, when a metal complex dye is used as a colorant for producing a color filter, the central metal of the metal complex dye tends to be eluted from the color filter. For example, in a liquid crystal display element, a metal eluted from a color filter is mixed in a liquid crystal material sealed inside the element and exists in an ionized state. As a result, the amount of metal ions in the liquid crystal increases, leading to a decrease in the specific resistance of the liquid crystal material. The decrease in specific resistance affects the electrical characteristics when liquid crystal is displayed, and the orientation of liquid crystal molecules is deteriorated, which may cause a problem that impairs the display characteristics of an image.

  Among dyes, metal complex dyes are highly stable as pigments and have a good hue. For example, for use in applications where durability such as long-term use does not cause discoloration is required (for example, color filters). Although expected to be applied, there has been a problem that electrical characteristics such as a liquid crystal display element are not suitable for applications in which performance is indispensable, particularly for color filters for liquid crystal display elements.

  The present invention has been made in view of the above circumstances, and is a colored curable composition having a good hue, less free metal ions, and less elution of ions after curing, and less elution of metal ions. When used in a display element, the color filter that can suppress the decrease in the specific resistance of the liquid crystal material and maintain the liquid crystal orientation (that is, the display characteristics) well, the manufacturing method thereof, and the color of the display image are excellent and the display characteristics are excellent. It aims at providing a liquid crystal display element and makes it a subject to achieve this objective.

Specific means for achieving the above object are as follows.
<1> comprising (A) a metal complex dye, (B) a compound having the same dye matrix as that of the metal complex dye and capable of forming a metal complex, and (C) a polymerizable compound. ) A colored curable composition in which the ratio of the compound (B) to the metal complex dye is 0.1% by mass or more and 10% by mass or less.
<2> At least one of the (A) metal complex dye is a complex in which a compound represented by the following general formula (I) is coordinated to a metal atom or a metal compound, and at least one of the (B) compound is: It is a colored curable composition as described in said <1> which is a compound represented by general formula (I).

In the general formula (I), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , and R ⁶ each independently represent a hydrogen atom or a substituent, and R ⁷ represents a hydrogen atom, a halogen atom, Represents an alkyl group, an aryl group, or a heterocyclic group;

<3> The colored curable composition according to <1> or <2>, wherein a ratio [molar ratio] of the compound (B) to a metal in the metal complex dye (A) exceeds 1%.
<4> The colored curable composition according to any one of <1> to <3>, wherein the metal complex dye (A) is a complex represented by the following general formula (II-1). is there.

In the general formula (II-1), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , and R ⁶ each independently represent a hydrogen atom or a substituent. R ⁷ represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a heterocyclic group. Ma represents a metal atom or a metal compound, X ¹ represents a group capable of binding to Ma, and X ² represents a group necessary for neutralizing the charge of Ma. X ¹ and X ² may be bonded to each other to form a 5-membered, 6-membered, or 7-membered ring.

  <5> The above <1> to <4>, wherein the metal complex dye (A) is at least one selected from the complex group represented by the following general formula (II-2) or general formula (II-3). It is a coloring curable composition as described in any one of these.

In the general formula (II-2), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ , R ¹² , and R ¹³ are each independently Represents a hydrogen atom or a substituent. R ⁷ and R ¹⁴ each independently represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a heterocyclic group. Ma represents a metal atom or a metal compound.

In the general formula (II-3), R ² , R ³ , R ⁴ , and R ⁵ each independently represent a hydrogen atom or a substituent, and R ⁷ represents a hydrogen atom, a halogen atom, an alkyl group, Represents an aryl group or a heterocyclic group. R ⁸ and R ⁹ each independently represents an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an alkylamino group, an arylamino group, or a heterocyclic amino group. Ma represents a metal atom or a metal compound. X ³ represents NR (R represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group), a nitrogen atom, an oxygen atom, or a sulfur atom. X ⁴ represents NRa (Ra represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group), an oxygen atom, or a sulfur atom. . Y ¹ represents NRc (Rc represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group), a nitrogen atom, or a carbon atom; ² represents a nitrogen atom or a carbon atom. X ⁵ represents a group capable of binding to Ma, and a represents 0, 1, or 2. R ⁸ and Y ¹ may be bonded to each other to form a 5-membered, 6-membered, or 7-membered ring, and R ⁹ and Y ² are bonded to each other to form a 5-, 6-, or 7-membered ring. The ring may be formed.

<6> The colored curable composition according to any one of <1> to <5>, wherein the ratio of the compound (B) to the metal complex dye (A) is 1% by mass to 5% by mass. It is a thing.
<7> The colored curable composition according to any one of <1> to <6>, wherein the metal in the metal complex dye (A) is zinc.
<8> Any one of <1> to <7>, wherein the polymerizable compound (C) includes at least one polyfunctional photopolymerizable compound and at least one polyfunctional thermopolymerizable compound. It is a colored curable composition as described in one.
<9> The colored curable composition according to any one of <1> to <8>, wherein the polymerizable compound (C) includes at least one alkali-soluble resin having a polymerizable group. .
<10> (A) a metal complex dye and (B) a compound having the same dye matrix as the metal complex dye and capable of forming a metal complex, and the ratio of the compound to the metal complex dye is 0 A color filter having a content of 1% by mass or more and 10% by mass or less.
<11> A color filter having a support and a colored region provided on the support and formed using the colored curable composition according to any one of <1> to <9>. It is.
<12> Applying the colored curable composition according to any one of <1> to <9> above on a support to form a colored layer, and forming the colored layer into a pattern And a step of forming a colored region by exposing to light and developing.
<13> A liquid crystal display device comprising the color filter according to <10> or <11>.

According to the present invention, it is possible to provide a colored curable composition that has a good hue, has few free metal ions, and suppresses elution of ions after curing. Also,
According to the present invention, there is little elution of metal ions. For example, when used in a liquid crystal display element, a color filter capable of suppressing a decrease in specific resistance of a liquid crystal material and maintaining good liquid crystal orientation (that is, display characteristics) and its manufacture. A method can be provided. Furthermore,
ADVANTAGE OF THE INVENTION According to this invention, the liquid crystal display element which was excellent in the color of the display image and excellent in the display characteristic can be provided.

  Hereinafter, the colored curable composition of the present invention will be described in detail, and a color filter using the same, a manufacturing method thereof, and a liquid crystal display element will be described in detail.

<Colored curable composition>
The colored curable composition of the present invention includes at least (A) a metal complex dye, (B) a compound having the same dye base as the metal complex dye, and capable of forming a metal complex, and (C) polymerizable. And (A) the ratio of the compound (B) to the metal complex dye is in the range of 0.1% by mass to 10% by mass.
The colored curable composition of the present invention may further comprise a binder such as an alkali-soluble resin, a polymerizable compound, a radiation-sensitive compound such as a photopolymerization initiator, a solvent, and various additives as necessary. can do.

In the present invention, together with a metal complex dye containing a colorant for coloring the curable composition, a compound having the same dye matrix as the metal complex dye and capable of forming a metal complex By making it coexist at a ratio and making it curable, a ligand capable of coordinating the free metal ionized by liberating the central metal forming the metal complex dye after curing is allowed to exist in the system. As a result, the elution of metal ions can be avoided.
As a result, particularly when a color filter for a liquid crystal display element is configured, it is possible to avoid a decrease in specific resistance due to mixing of metal ions eluted from the color filter into the liquid crystal material, and alignment of liquid crystal molecules. Inhibition, in other words, deterioration of display characteristics can be effectively prevented.

Hereinafter, each component which comprises the colored curable composition of this invention is demonstrated in detail.
(A) Metal Complex Dye The colored curable composition of the present invention contains at least one metal complex dye. This metal complex dye is a dye complex compound having a metal as a central element, and is excellent in spectral characteristics and heat resistance. By containing this pigment | dye, the colored curable composition excellent in hue and heat resistance can be obtained.

  Examples of the metal complex dye in the present invention include a complex in which a dye compound is coordinated around a metal atom or a metal compound, and specific examples include a dipyrromethene metal complex compound and a phthalocyanine metal complex compound.

-Dipyrromethene metal complex compound-
The dipyrromethene-based metal complex compound is preferably a complex in which a compound represented by the following general formula (I) is coordinated to a metal atom or a metal compound.

In general formula (I), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , and R ⁶ each independently represent a hydrogen atom or a substituent, and R ⁷ represents a hydrogen atom, a halogen atom, or an alkyl. Represents a group, an aryl group, or a heterocyclic group.

In the general formula (I), the substituents represented by R ^{1 to} R ⁶ are monovalent groups as shown below (hereinafter, a group of monovalent groups listed below is collectively referred to as “substituent R”). There is a).
That is, a halogen atom (for example, a fluorine atom, a chlorine atom, a bromine atom), an alkyl group (preferably a C1-C48, more preferably a C1-C24 linear, branched, or cyclic alkyl group). For example, methyl group, ethyl group, propyl group, isopropyl group, butyl group, t-butyl group, pentyl group, hexyl group, heptyl group, octyl group, 2-ethylhexyl group, dodecyl group, hexadecyl group, cyclopropyl group, A cyclopentyl group, a cyclohexyl group, a 1-norbornyl group, a 1-adamantyl group), an alkenyl group (preferably an alkenyl group having 2 to 48 carbon atoms, more preferably 2 to 18 carbon atoms, such as a vinyl group, an allyl group, 3 -Buten-1-yl group), an aryl group (preferably an aryl group having 6 to 48 carbon atoms, more preferably 6 to 24 carbon atoms). A phenyl group, a naphthyl group), a heterocyclic group (preferably a heterocyclic group having 1 to 32 carbon atoms, more preferably a heterocyclic group having 1 to 18 carbon atoms, such as a 2-thienyl group, a 4-pyridyl group, 2- Furyl group, 2-pyrimidinyl group, 1-pyridyl group, 2-benzothiazolyl group, 1-imidazolyl group, 1-pyrazolyl group, benzotriazol-1-yl group), silyl group (preferably having 3 to 38 carbon atoms, more preferably Is a silyl group having 3 to 18 carbon atoms, for example, trimethylsilyl group, triethylsilyl group, tributylsilyl group, t-butyldimethylsilyl group, t-hexyldimethylsilyl group), hydroxyl group, cyano group, nitro group, alkoxy group (Preferably an alkoxy group having 1 to 48 carbon atoms, more preferably 1 to 24 carbon atoms, such as a methoxy group, an ethoxy group, -Butoxy group, 2-butoxy group, isopropoxy group, t-butoxy group, dodecyloxy group, and cycloalkyloxy group, for example, cyclopentyloxy group, cyclohexyloxy group), aryloxy group (preferably carbon An aryloxy group having 6 to 48, more preferably 6 to 24 carbon atoms, such as a phenoxy group or 1-naphthoxy group, or a heterocyclic oxy group (preferably having 1 to 32 carbon atoms, more preferably 1 to 2 carbon atoms). 18 heterocyclic oxy groups, for example, 1-phenyltetrazol-5-oxy group, 2-tetrahydropyranyloxy group), silyloxy group (preferably having 1 to 32 carbon atoms, more preferably having 1 to 18 carbon atoms) Groups such as trimethylsilyloxy, t-butyldimethylsilyloxy, diphenylmethyl Silyloxy group), acyloxy group (preferably an acyloxy group having 2 to 48 carbon atoms, more preferably 2 to 24 carbon atoms, for example, an acetoxy group, a pivaloyloxy group, a benzoyloxy group, a dodecanoyloxy group), an alkoxycarbonyloxy group (Preferably an alkoxycarbonyloxy group having 2 to 48 carbon atoms, more preferably 2 to 24 carbon atoms, for example, an ethoxycarbonyloxy group, a t-butoxycarbonyloxy group, or a cycloalkyloxycarbonyloxy group. For example, cyclohexyloxycarbonyloxy group), aryloxycarbonyloxy group (preferably aryloxycarbonyloxy group having 7 to 32 carbon atoms, more preferably 7 to 24 carbon atoms, such as phenoxycarbonyloxy group), carbamoyloxy A group (preferably a carbamoyloxy group having 1 to 48 carbon atoms, more preferably 1 to 24 carbon atoms, such as an N, N-dimethylcarbamoyloxy group, an N-butylcarbamoyloxy group, an N-phenylcarbamoyloxy group, N-ethyl-N-phenylcarbamoyloxy group), a sulfamoyloxy group (preferably a sulfamoyloxy group having 1 to 32 carbon atoms, more preferably 1 to 24 carbon atoms, such as N, N-diethylsulfuryl group). A famoyloxy group, an N-propylsulfamoyloxy group), an alkylsulfonyloxy group (preferably an alkylsulfonyloxy group having 1 to 38 carbon atoms, more preferably 1 to 24 carbon atoms, such as a methylsulfonyloxy group, Hexadecylsulfonyloxy group, cyclohexylsulfonyloxy group),

  An arylsulfonyloxy group (preferably an arylsulfonyloxy group having 6 to 32 carbon atoms, more preferably an arylsulfonyloxy group having 6 to 24 carbon atoms, such as a phenylsulfonyloxy group), an acyl group (preferably having 1 to 48 carbon atoms, more preferably C1-C24 acyl group, for example, formyl group, acetyl group, pivaloyl group, benzoyl group, tetradecanoyl group, cyclohexanoyl group), alkoxycarbonyl group (preferably C2-C48, more preferably An alkoxycarbonyl group having 2 to 24 carbon atoms, for example, a methoxycarbonyl group, an ethoxycarbonyl group, an octadecyloxycarbonyl group, a cyclohexyloxycarbonyl group, a 2,6-di-tert-butyl-4-methylcyclohexyloxycarbonyl group), Aryloxycarbonyl group (preferred Or an aryloxycarbonyl group having 7 to 32 carbon atoms, more preferably 7 to 24 carbon atoms, such as a phenoxycarbonyl group, and a carbamoyl group (preferably having 1 to 48 carbon atoms, more preferably 1 to 24 carbon atoms). Carbamoyl group such as carbamoyl group, N, N-diethylcarbamoyl group, N-ethyl-N-octylcarbamoyl group, N, N-dibutylcarbamoyl group, N-propylcarbamoyl group, N-phenylcarbamoyl group, N-methyl N-phenylcarbamoyl group, N, N-dicyclohexylcarbamoyl group), amino group (preferably an amino group having 32 or less carbon atoms, more preferably 24 or less carbon atoms, such as amino group, methylamino group, N, N-dibutylamino group, tetradecylamino group, 2-ethylhexylamino group, cyclohexyl A silamino group), an anilino group (preferably an anilino group having 6 to 32 carbon atoms, more preferably 6 to 24 carbon atoms, such as an anilino group and an N-methylanilino group), a heterocyclic amino group (preferably having 1 to 32 carbon atoms, More preferably, it is a heterocyclic amino group having 1-18, for example, 4-pyridylamino group), a carbonamido group (preferably a carbonamide group having 2 to 48 carbon atoms, more preferably 2-24, for example, an acetamide group, Benzamide group, tetradecanamide group, pivaloylamide group, cyclohexaneamide group), ureido group (preferably ureido group having 1 to 32 carbon atoms, more preferably 1 to 24 carbon atoms, for example, ureido group, N, N-dimethylureido Group, N-phenylureido group), imide group (preferably having 36 or less carbon atoms, more preferably 2 carbon atoms). 4 or less imide groups, for example, N-succinimide group, N-phthalimide group), alkoxycarbonylamino group (preferably C2-48, more preferably C2-C24 alkoxycarbonylamino group, for example, Methoxycarbonylamino group, ethoxycarbonylamino group, t-butoxycarbonylamino group, octadecyloxycarbonylamino group, cyclohexyloxycarbonylamino group), aryloxycarbonylamino group (preferably having 7 to 32 carbon atoms, more preferably having 7 carbon atoms) An aryloxycarbonylamino group having ˜24, for example, a phenoxycarbonylamino group), a sulfonamide group (preferably a sulfonamide group having 1 to 48 carbon atoms, more preferably 1 to 24 carbon atoms, such as a methanesulfonamide group). The Butans Honamide group, benzenesulfonamide group, hexadecanesulfonamide group, cyclohexanesulfonamide group), sulfamoylamino group (preferably sulfamoylamino group having 1 to 48 carbon atoms, more preferably 1 to 24 carbon atoms, N, N-dipropylsulfamoylamino group, N-ethyl-N-dodecylsulfamoylamino group), azo group (preferably having 1 to 32 carbon atoms, more preferably 1 to 24 carbon atoms, For example, phenylazo group, 3-pyrazolylazo group),

  An alkylthio group (preferably an alkylthio group having 1 to 48 carbon atoms, more preferably an alkylthio group having 1 to 24 carbon atoms, for example, methylthio group, ethylthio group, octylthio group, cyclohexylthio group), arylthio group (preferably having 6 to 48 carbon atoms). More preferably, it is an arylthio group having 6 to 24 carbon atoms, such as a phenylthio group, and a heterocyclic thio group (preferably having 1 to 32 carbon atoms, more preferably a heterocyclic thio group having 1 to 18 carbon atoms, 2-benzothiazolylthio group, 2-pyridylthio group, 1-phenyltetrazolylthio group), alkylsulfinyl group (preferably an alkylsulfinyl group having 1 to 32 carbon atoms, more preferably 1 to 24 carbon atoms, Dodecanesulfinyl group), arylsulfinyl group (preferably having 6 to 32 carbon atoms, more preferably An arylsulfinyl group having 6 to 24 prime atoms, such as a phenylsulfinyl group, an alkylsulfonyl group (preferably an alkylsulfonyl group having 1 to 48 carbon atoms, more preferably an alkylsulfonyl group having 1 to 24 carbon atoms, such as a methylsulfonyl group, ethyl Sulfonyl group, propylsulfonyl group, butylsulfonyl group, isopropylsulfonyl group, 2-ethylhexylsulfonyl group, hexadecylsulfonyl group, octylsulfonyl group, cyclohexylsulfonyl group), arylsulfonyl group (preferably having 6 to 48 carbon atoms, more preferably An arylsulfonyl group having 6 to 24 carbon atoms, for example, a phenylsulfonyl group, 1-naphthylsulfonyl group), a sulfamoyl group (preferably a sulfamoyl group having 32 or less carbon atoms, more preferably 24 or less carbon atoms, Rufamoyl group, N, N-dipropylsulfamoyl group, N-ethyl-N-dodecylsulfamoyl group, N-ethyl-N-phenylsulfamoyl group, N-cyclohexylsulfamoyl group), sulfo group, phosphonyl Groups (preferably phosphonyl groups having 1 to 32 carbon atoms, more preferably 1 to 24 carbon atoms, such as phenoxyphosphonyl group, octyloxyphosphonyl group, phenylphosphonyl group), phosphinoylamino groups (preferably A phosphinoylamino group having 1 to 32 carbon atoms, more preferably 1 to 24 carbon atoms, such as a diethoxyphosphinoylamino group or a dioctyloxyphosphinoylamino group).

  When the above-described monovalent group is a further substitutable group, it may be further substituted with any of the above-described groups. In addition, when it has two or more substituents, those substituents may be the same or different.

In the general formula (I), R ¹ and R ² , R ² and R ³ , R ⁴ and R ⁵ , and R ⁵ and R ⁶ are each independently bonded to each other to form 5, 6 or 7 members. The ring may be formed. In addition, as a ring formed, there exists a saturated ring or an unsaturated ring. Examples of the 5-membered, 6-membered, or 7-membered saturated ring or unsaturated ring include a pyrrole ring, a furan ring, a thiophene ring, a pyrazole ring, an imidazole ring, a triazole ring, an oxazole ring, a thiazole ring, a pyrrolidine ring, Examples include a piperidine ring, a cyclopentene ring, a cyclohexene ring, a benzene ring, a pyridine ring, a pyrazine ring and a pyridazine ring, and preferably a benzene ring and a pyridine ring.
In addition, when the formed 5-membered, 6-membered, and 7-membered rings are further substitutable groups, they may be substituted with any of the substituents R, and two or more substituents In the case where the substituent is substituted, the substituents may be the same or different.
In the general formula (I), when R ⁷ is a halogen atom, an alkyl group, an aryl group, or a heterocyclic group, these preferred ranges are the halogen atom, alkyl group, and R ^{1 to} R ⁶ described above. This is the same as the preferred range of the aryl group or heterocyclic group.

In the general formula (I), the R ¹ and R ⁶ are preferably an alkylamino group, an arylamino group, a carbonamido group, a ureido group, an imide group, an alkoxycarbonylamino group, or a sulfonamide group among the above. An amide group, a ureido group, an alkoxycarbonylamino group, and a sulfonamide group are more preferable, a carbonamide group, a ureido group, an alkoxycarbonylamino group, and a sulfonamide group are more preferable, and a carbonamide group and a ureido group are particularly preferable.
In the general formula (I), as R ² and R ⁵ , among the above, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an alkylsulfonyl group, an arylsulfonyl group, a nitrile group, an imide group, and a carbamoylsulfonyl group Preferred are alkoxycarbonyl group, aryloxycarbonyl group, carbamoyl group, alkylsulfonyl group, nitrile group, imide group, carbamoylsulfonyl group, alkoxycarbonyl group, aryloxycarbonyl group, carbamoyl group, nitrile group, imide group, carbamoyl. A sulfonyl group is more preferable, and an alkoxycarbonyl group, an aryloxycarbonyl group, and a carbamoyl group are particularly preferable.
In the general formula (I), R ³ and R ⁴ are preferably a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and more preferably A substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group;

In general formula (I), when R ³ and R ⁴ represent an alkyl group, the alkyl group is preferably a linear, branched or cyclic substituted or unsubstituted alkyl having 1 to 12 carbon atoms. More specifically, for example, methyl group, ethyl group, n-propyl group, isopropyl group, cyclopropyl group, n-butyl group, i-butyl group, t-butyl group, cyclobutyl group, cyclopentyl group , A cyclohexyl group, and a benzyl group, more preferably a branched chain having 1 to 12 carbon atoms, or a cyclic substituted or unsubstituted alkyl group, and more specifically, for example, isopropyl group, cyclopropyl Group, i-butyl group, t-butyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, and more preferably, a secondary or tertiary substitution having 1 to 12 carbon atoms or An unsubstituted alkyl group, more specifically, for example, an isopropyl group, a cyclopropyl group, an i-butyl group, a t-butyl group, a cyclobutyl group, and a cyclohexyl group.

In the general formula (I), when R ³ and R ⁴ represent an aryl group, the aryl group preferably includes a substituted or unsubstituted phenyl group and a substituted or unsubstituted naphthyl group, more preferably Is a substituted or unsubstituted phenyl group.
When R ³ and R ⁴ represent a heterocyclic group, the heterocyclic group is preferably a substituted or unsubstituted 2-thienyl group, a substituted or unsubstituted 4-pyridyl group, a substituted or unsubstituted 3 -Pyridyl group, substituted or unsubstituted 2-pyridyl group, substituted or unsubstituted 2-furyl group, substituted or unsubstituted 2-pyrimidinyl group, substituted or unsubstituted 2-benzothiazolyl group, substituted or unsubstituted 1 -Imidazolyl group, substituted or unsubstituted 1-pyrazolyl group, substituted or unsubstituted benzotriazol-1-yl group, more preferably substituted or unsubstituted 2-thienyl group, substituted or unsubstituted 4- Examples include a pyridyl group, a substituted or unsubstituted 2-furyl group, a substituted or unsubstituted 2-pyrimidinyl group, and a substituted or unsubstituted 1-pyridyl group.

Next, the metal atom or metal compound that forms the dipyrromethene-based metal complex compound will be described.
The metal or metal compound may be any metal atom or metal compound capable of forming a complex, and may be any divalent metal atom, divalent metal oxide, divalent metal hydroxide, or 2 Valent metal chlorides are included. For example, Zn, Mg, Si, Sn , Rh, Pt, Pd, Mo, Mn, Pb, Cu, Ni, Co, in addition to Fe, such _{as, AlCl, InCl, FeCl, TiCl} 2, SnCl 2, SiCl 2, GeCl Also included are metal chlorides such as ₂ , metal oxides such as TiO and VO, and metal hydroxides such as Si (OH) ₂ .
Among these, Fe, Zn, Mg, Si, Pt, Pd, Mo, Mn, Cu, Ni, Co, TiO, or from the viewpoint of the stability, spectral characteristics, heat resistance, light resistance, and production suitability of the complex VO is preferred, Fe, Zn, Mg, Si, Pt, Pd, Cu, Ni, Co, or VO is more preferred, and Fe, Zn, Cu, Co, or VO (V = O) is most preferred. Among these, Zn is particularly preferable.

In the dipyrromethene metal complex compound in which the compound represented by the general formula (I) is coordinated to a metal atom or a metal compound, preferred embodiments are shown below. That is,
In general formula (I), R ¹ and R ⁶ are each independently a hydrogen atom, alkyl group, alkenyl group, aryl group, heterocyclic group, silyl group, hydroxyl group, cyano group, alkoxy group, aryloxy group, Heterocyclic oxy group, acyl group, alkoxycarbonyl group, carbamoyl group, amino group, anilino group, heterocyclic amino group, carbonamido group, ureido group, imide group, alkoxycarbonylamino group, aryloxycarbonylamino group, sulfonamide group , An azo group, an alkylthio group, an arylthio group, a heterocyclic thio group, an alkylsulfonyl group, an arylsulfonyl group, or a phosphinoylamino group, and R ² and R ⁵ are each independently a hydrogen atom, a halogen atom, Alkyl group, alkenyl group, aryl group, heterocyclic group, hydroxyl group, Ano group, nitro group, alkoxy group, aryloxy group, heterocyclic oxy group, acyl group, alkoxycarbonyl group, aryloxycarbonyl group, carbamoyl group, imide group, alkoxycarbonylamino group, sulfonamide group, azo group, alkylthio group , An arylthio group, a heterocyclic thio group, an alkylsulfonyl group, an arylsulfonyl group, or a sulfamoyl group, and R ³ and R ⁴ are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an aryl group, Heterocyclic group, silyl group, hydroxyl group, cyano group, alkoxy group, aryloxy group, heterocyclic oxy group, acyl group, alkoxycarbonyl group, carbamoyl group, anilino group, carbonamido group, ureido group, imide group, alkoxycarbonyl Amino group, sulfone De group, an azo group, an alkylthio group, an arylthio group, a heterocyclic thio group, an alkylsulfonyl group, an arylsulfonyl group, represented by a sulfamoyl group, or a phosphinoylamino group, R ⁷ is a hydrogen atom, a halogen atom, an alkyl group And an aryl group or a heterocyclic group, and the metal atom or metal compound is represented by Zn, Mg, Si, Pt, Pd, Mo, Mn, Cu, Ni, Co, TiO, or VO. It is done.

The more preferable aspect of a dipyrromethene type metal complex compound is shown below. That is,
In the general formula (I), R ¹ and R ⁶ are each independently a hydrogen atom, alkyl group, alkenyl group, aryl group, heterocyclic group, cyano group, acyl group, alkoxycarbonyl group, carbamoyl group, amino group. , Heterocyclic amino group, carbonamido group, ureido group, imide group, alkoxycarbonylamino group, aryloxycarbonylamino group, sulfonamido group, azo group, alkylsulfonyl group, arylsulfonyl group, or phosphinoylamino group R ² and R ⁵ are each independently an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a cyano group, a nitro group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an imide group, In alkylsulfonyl group, arylsulfonyl group, or sulfamoyl group R ³ and R ⁴ are each independently a hydrogen atom, alkyl group, alkenyl group, aryl group, heterocyclic group, cyano group, acyl group, alkoxycarbonyl group, carbamoyl group, carbonamido group, ureido group, Represented by an imide group, an alkoxycarbonylamino group, a sulfonamido group, an alkylthio group, an arylthio group, a heterocyclic thio group, an alkylsulfonyl group, an arylsulfonyl group, or a sulfamoyl group, R ⁷ is a hydrogen atom, a halogen atom, or an alkyl group And an aryl group or a heterocyclic group, and the metal atom or metal compound is represented by Zn, Mg, Si, Pt, Pd, Cu, Ni, Co, or VO.

A particularly preferable embodiment in the complex in which the compound represented by the general formula (I) is coordinated to a metal atom or a metal compound is shown below.
That is, in general formula (I), R ¹ and R ⁶ are each independently a hydrogen atom, alkyl group, aryl group, heterocyclic group, amino group, heterocyclic amino group, carbonamido group, ureido group, imide group. , An alkoxycarbonylamino group, a sulfonamido group, an azo group, an alkylsulfonyl group, an arylsulfonyl group, or a phosphinoylamino group, and R ² and R ⁵ are each independently an alkyl group, an aryl group, a heterocyclic ring Group, a cyano group, an acyl group, an alkoxycarbonyl group, a carbamoyl group, an alkylsulfonyl group, or an arylsulfonyl group, and R ³ and R ⁴ are each independently a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic ring. R ⁷ is represented by a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group, and a metal atom or a metal compound is Examples include an embodiment represented by Zn, Cu, Co, or VO (particularly Zn).

In particular, from the viewpoint of excellent fastness, it is preferable that R ³ and R ⁴ in the general formula (I) are each a phenyl group. The reason is that (1) R ³ and R ⁴ are each a phenyl group, the spectrum of the compound becomes longer, and when used in combination with, for example, a phthalocyanine pigment, the spectrum and the overlap (near 550 nm) increase. It is considered that energy transfer is facilitated, and (2) the fastness of the compound itself is increased by the presence of a sterically bulky substituent.
Further, from the viewpoint of excellent solvent solubility, the general formula (I) ^{R 2} and / or ^{R 5} in is preferably 2,6-di -tert- butyl-4-methyl cyclohexyloxy carbonyl group.

  Of the compounds represented by the general formula (I), a complex in which a compound represented by the following general formula (III) is coordinated to a metal atom or a metal compound is preferable.

In the general formula (III), R ¹ , R ² , R ³ , R ⁴ , and R ⁶ each independently represent a hydrogen atom or a substituent, and R ¹ , R ² in the general formula (I) , R ³ , R ⁴ , and R ⁶ have the same meanings, and preferred embodiments are also the same. R ⁷ represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a heterocyclic group, and is the same as R ⁷ in the general formula (I), and the preferred embodiment is also the same. Moreover, the metal atom or metal compound which comprises a complex is the same as that of the said general formula (I), and its preferable aspect is also the same.

  The dipyrromethene-based metal complex compound in the present invention is preferably a complex in which the compound represented by the following general formula (II-1) among the compounds represented by the general formula (I) is coordinated to a metal atom or a metal compound. .

In the general formula (II-1), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , and R ⁶ each independently represent a hydrogen atom or a substituent. R ⁷ represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a heterocyclic group. Ma represents a metal atom or a metal compound, X ¹ represents a group capable of binding to Ma, and X ² represents a group necessary for neutralizing the charge of Ma. X ¹ and X ² may be bonded to each other to form a 5-membered, 6-membered, or 7-membered ring.

R < ¹ > -R < ⁶ > in General formula (II-1) is synonymous with R < ¹ > -R < ⁶ > in General formula (I), and its preferable aspect is also the same.
Ma in the general formula (II-1) represents a metal atom or a metal compound, and the metal atom or metal compound in the “complex in which the compound represented by the general formula (I) is coordinated to the metal atom or metal compound” The preferred range is also the same.
R ⁷ in the general formula (II-1) has the same meaning as R ⁷ in formula (I), preferable embodiments thereof are also the same.

X ¹ in the general formula (II-1) may be any group as long as it is capable of binding to Ma, such as water, alcohols (for example, methanol, ethanol, propanol), and further “metal chelate” [1 ] Groups derived from the compounds described in Takeichi Sakaguchi and Keihei Ueno (1995 Nanedou), [2] (1996), [3] (1997), and the like. Among these, from the viewpoint of production, water, carboxylic acid compounds and alcohols are preferable, and water and carboxylic acid compounds are more preferable.

X ^{2 in the} general formula (II-1) represents a group necessary for neutralizing the charge of Ma, and examples thereof include a halogen atom, a hydroxyl group, a carboxylic acid group, a phosphoric acid group, and a sulfonic acid group. Among these, from the viewpoint of production, a halogen atom, a hydroxyl group, a carboxylic acid group, and a sulfonic acid group are preferable, and a hydroxyl group and a carboxylic acid group are more preferable.

X ¹ and X ² in formula (II-1) may be bonded to each other to form a 5-membered, 6-membered, or 7-membered ring together with Ma. The 5-membered, 6-membered and 7-membered rings formed may be saturated or unsaturated. The 5-membered, 6-membered, and 7-membered rings are heterocycles having at least one atom selected from a nitrogen atom, an oxygen atom, and a sulfur atom, which may be composed of only carbon atoms and hydrogen atoms. There may be.

  Furthermore, the dipyrromethene-based metal complex compound in the present invention is a compound represented by the following general formula (II-2) or general formula (II-3) among the compounds represented by the general formula (I). Or the complex coordinated to the metal compound is preferable.

In the general formula (II-2), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ , R ¹² , and R ¹³ are each independently Represents a hydrogen atom or a substituent. R ⁷ and R ¹⁴ each independently represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a heterocyclic group. Ma represents a metal atom or a metal compound.

R < ¹ > -R < ⁶ > in General formula (II-2) is synonymous with R < ¹ > -R < ⁶ > in General formula (I), and its preferable aspect is also the same.
The substituent represented by R ^{8 to} R ¹³ in the general formula (II-2) is synonymous with the substituent represented by R ^{1 to} R ⁶ of the compound represented by the general formula (I). The preferred embodiment is also the same. When the substituent represented by R ^{8 to} R ¹³ of the compound represented by the general formula (II-2) is a further substitutable group, it may be substituted with any of the substituents R described above. In the case of being substituted with two or more substituents, those substituents may be the same or different.

R ⁷ in the formula (II-2) has the same meaning as R ⁷ in formula (I), preferable embodiments thereof are also the same.
R ¹⁴ in the general formula (II-2) represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a heterocyclic group, and a preferable range of R ^{14 is} the same as the preferable range of R ⁷ . When R ¹⁴ is a further substitutable group, it may be substituted with any of the aforementioned substituents R, and when it is substituted with two or more substituents, those substituents are They may be the same or different.

  Ma in the general formula (II-2) represents a metal or a metal compound, and a metal atom or a metal compound in the “complex in which the compound represented by the general formula (I) is coordinated to a metal atom or a metal compound” It is synonymous and the preferable range is also the same.

R ⁸ and R ⁹ , R ⁹ and R ¹⁰ , R ¹¹ and R ¹² , R ¹² and R ¹³ in the general formula (II-2) are each independently bonded to each other to form a 5-membered, 6-membered, or 7-membered compound. A membered saturated ring or an unsaturated ring may be formed. The saturated ring or unsaturated ring formed is synonymous with the saturated or unsaturated ring formed by R ¹ and R ² , R ² and R ³ , R ⁴ and R ⁵ , and R ⁵ and R ^6. The preferred examples are also the same.

In the general formula (II-3), R ² , R ³ , R ⁴ , and R ⁵ each independently represent a hydrogen atom or a substituent, and R ⁷ represents a hydrogen atom, a halogen atom, an alkyl group, Represents an aryl group or a heterocyclic group. R ⁸ and R ⁹ each independently represents an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an alkylamino group, an arylamino group, or a heterocyclic amino group. Ma represents a metal atom or a metal compound. X ³ represents NR (R represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group), a nitrogen atom, an oxygen atom, or a sulfur atom. X ⁴ represents NRa (Ra represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group), an oxygen atom, or a sulfur atom. . Y ¹ represents NRc (Rc represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group), a nitrogen atom, or a carbon atom; ² represents a nitrogen atom or a carbon atom. X ⁵ represents a group capable of binding to Ma, and a represents 0, 1, or 2. R ⁸ and Y ¹ may be bonded to each other to form a 5-membered, 6-membered, or 7-membered ring, and R ⁹ and Y ² are bonded to each other to form a 5-, 6-, or 7-membered ring. The ring may be formed.

Formula ^{(II-3) R 2 ~R} 5 in, and ^{R 7,} the general formula (I) ^R 2 ~R ⁵ in, and have the same meaning as ^{R 7,} preferred embodiments are also the same.
Ma in the general formula (II-3) represents a metal or a metal compound, and a metal atom or a metal compound in the “complex in which the compound represented by the general formula (I) is coordinated to a metal atom or a metal compound” It is synonymous and the preferable range is also the same.

In general formula (II-3), R ⁸ and R ⁹ are each independently an alkyl group (preferably a linear, branched or cyclic alkyl group having 1 to 36 carbon atoms, more preferably 1 to 12 carbon atoms). For example, methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, t-butyl group, hexyl group, 2-ethylhexyl group, dodecyl group, cyclopropyl group, cyclopentyl group, cyclohexyl group, 1-adamantyl Group), an alkenyl group (preferably an alkenyl group having 2 to 24 carbon atoms, more preferably 2 to 12 carbon atoms, for example, a vinyl group, an allyl group, a 3-buten-1-yl group), an aryl group (preferably a carbon number). An aryl group having 6 to 36, more preferably 6 to 18, for example, a phenyl group or a naphthyl group, or a heterocyclic group (preferably having 1 to 24 carbon atoms, more preferably 1 to 1). 2 heterocyclic groups such as 2-thienyl, 4-pyridyl, 2-furyl, 2-pyrimidinyl, 1-pyridyl, 2-benzothiazolyl, 1-imidazolyl, 1-pyrazolyl, Triazol-1-yl group), an alkoxy group (preferably an alkoxy group having 1 to 36 carbon atoms, more preferably 1 to 18 carbon atoms such as methoxy group, ethoxy group, propyloxy group, butoxy group, hexyloxy group, 2 -Ethylhexyloxy group, dodecyloxy group, cyclohexyloxy group), aryloxy group (preferably an aryloxy group having 6 to 24 carbon atoms, more preferably 1 to 18, for example, phenoxy group, naphthyloxy group), alkylamino A group (preferably an alkylamino group having 1 to 36 carbon atoms, more preferably 1 to 18 carbon atoms such as Amino group, ethylamino group, propylamino group, butylamino group, hexylamino group, 2-ethylhexylamino group, isopropylamino group, t-butylamino group, t-octylamino group, cyclohexylamino group, N, N-diethylamino Group, N, N-dipropylamino group, N, N-dibutylamino group, N-methyl-N-ethylamino group), arylamino group (preferably C6-C36, more preferably 6-18 aryl) Amino group, for example, phenylamino group, naphthylamino group, N, N-diphenylamino group, N-ethyl-N-phenylamino group), or heterocyclic amino group (preferably having 1 to 24 carbon atoms, more preferably 1-12 heterocyclic amino groups such as 2-aminopyrrole group, 3-aminopyrazole group, 2-aminopyridine Down group, a 3-aminopyridine group).

In general formula (II-3), an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an alkylamino group, an arylamino group, or a heterocyclic amino group represented by R ⁸ and R ⁹ Is a further substitutable group, it may be substituted with any of the aforementioned substituents R, and when it is substituted with two or more substituents, these substituents are the same. It may or may not be.

In General Formula (II-3), X ³ represents NR, a nitrogen atom, an oxygen atom, or a sulfur atom, X ⁴ represents NRa, an oxygen atom, or a sulfur atom, and R and Ra are each independently, A hydrogen atom, an alkyl group (preferably a linear, branched or cyclic alkyl group having 1 to 36 carbon atoms, more preferably 1 to 12 carbon atoms, such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group; , Isobutyl group, t-butyl group, hexyl group, 2-ethylhexyl group, dodecyl group, cyclopropyl group, cyclopentyl group, cyclohexyl group, 1-adamantyl group), alkenyl group (preferably having 2 to 24 carbon atoms, more preferably An alkenyl group having 2 to 12 carbon atoms, such as a vinyl group, an allyl group, or a 3-buten-1-yl group) or an aryl group (preferably having 6 to 36 carbon atoms, more preferably 6 to 18 carbon atoms). An aryl group of, for example, a phenyl group, a naphthyl group), a heterocyclic group (preferably a heterocyclic group having 1 to 24 carbon atoms, more preferably 1 to 12 carbon atoms, such as a 2-thienyl group, a 4-pyridyl group, 2-furyl group, 2-pyrimidinyl group, 1-pyridyl group, 2-benzothiazolyl group, 1-imidazolyl group, 1-pyrazolyl group, benzotriazol-1-yl group), acyl group (preferably having 1 to 24 carbon atoms, More preferably, it is an acyl group having 2 to 18, for example, acetyl group, pivaloyl group, 2-ethylhexyl group, benzoyl group, cyclohexanoyl group), alkylsulfonyl group (preferably having 1 to 24 carbon atoms, more preferably 1 to 2 carbon atoms). 18 alkylsulfonyl groups such as methylsulfonyl group, ethylsulfonyl group, isopropylsulfonyl group, cyclohexylsulfur Group), an arylsulfonyl group (preferably arylsulfonyl group having 6 to 24 carbon atoms, more preferably 6 to 18, for example, represent a phenylsulfonyl group, a naphthylsulfonyl group).
The alkyl group, alkenyl group, aryl group, heterocyclic group, acyl group, alkylsulfonyl group, and arylsulfonyl group of R and Ra may be further substituted with any of the substituents R, and a plurality of substituents When substituted with a group, the substituents may be the same or different.

In General Formula (II-3), Y ¹ represents NRc, a nitrogen atom, or a carbon atom, Y ² represents a nitrogen atom or a carbon atom, and Rc has the same meaning as R in X ³ .

In general formula (II-3), R ⁸ and Y ¹ are bonded to each other, and together with R ⁸ , Y ¹ , and the carbon atom, a 5-membered ring (for example, cyclopentane, pyrrolidine, tetrahydrofuran, dioxolane, tetrahydrothiophene, pyrrole) , Furan, thiophene, indole, benzofuran, benzothiophene), 6-membered ring (eg, cyclohexane, piperidine, piperazine, morpholine, tetrahydropyran, dioxane, pentamethylene sulfide, dithiane, benzene, piperidine, piperazine, pyridazine, quinoline, quinazoline) Or a 7-membered ring (eg, cycloheptane, hexamethyleneimine).

In General Formula (II-3), R ⁹ and Y ² may be bonded to each other to form a 5-membered, 6-membered, or 7-membered ring together with R ⁹ , Y ² , and the carbon atom. 5-membered to be formed, 6-membered, and 7-membered ring, the ring one bond in the ring formed by said R ⁸ and Y ¹ and the carbon atom is changed to the double bond.

In the general formula (II-3), when the 5-membered, 6-membered and 7-membered rings formed by combining R ⁸ and Y ¹ and R ⁹ and Y ² are further substitutable rings May be substituted with the group described in any of the substituents R, and when it is substituted with two or more substituents, these substituents may be the same or different. Good.

In General Formula (II-3), X ⁵ represents a group capable of binding to Ma, and examples thereof include the same groups as X ¹ in General Formula (II-1).
a represents 0, 1, or 2.

Preferred embodiments of the compound represented by formula (II-3) are shown below.
That is, R ^{2 to} R ⁵ , R ⁷ , and Ma are each a preferred embodiment of a complex containing a compound represented by the general formula (I) and a metal atom or a metal compound, and X ³ is NR (R is A hydrogen atom, an alkyl group), a nitrogen atom, or an oxygen atom, X ⁴ is NRa (Ra is a hydrogen atom, an alkyl group, a heterocyclic group), or an oxygen atom, Y ¹ is NRc (Rc is a hydrogen atom, Or an alkyl group), a nitrogen atom, or a carbon atom, Y ² is a nitrogen atom or a carbon atom, X ⁵ is a group bonded through an oxygen atom, and R ⁸ and R ⁹ are each independently , An alkyl group, an aryl group, a heterocyclic group, an alkoxy group, or an alkylamino group, or R ⁸ and Y ¹ are bonded to each other to form a 5-membered or 6-membered ring, and R ⁹ and Y ² are Bonded to each other to form a 5-membered or 6-membered ring, a is 0 Is a mode represented by 1.

The more preferable aspect of the compound represented by general formula (II-3) is shown below.
That is, R ^{2 to} R ⁵ , R ⁷ and Ma are each a preferred embodiment of a complex containing a compound represented by the general formula (I) and a metal atom or a metal compound, and X ³ and X ⁴ are oxygen atoms. Y ¹ is NH, Y ² is a nitrogen atom, X ⁵ is a group bonded through an oxygen atom, and R ⁸ and R ⁹ are each independently an alkyl group, an aryl group, a hetero group Represents a cyclic group, an alkoxy group, or an alkylamino group, or R ⁸ and Y ¹ are bonded to each other to form a 5-membered or 6-membered ring, and R ⁹ and Y ² are bonded to each other to form a 5-membered, 6-membered ring. A forming a member ring is an embodiment represented by 0 or 1;

The molar extinction coefficient of the dipyrromethene-based metal complex compound in the present invention is preferably higher from the viewpoint of film thickness. The maximum absorption wavelength λ _max is preferably 520 nm to 580 nm, and more preferably 530 nm to 570 nm, from the viewpoint of improving color purity. The maximum absorption wavelength and molar extinction coefficient are measured by a spectrophotometer UV-2400PC (manufactured by Shimadzu Corporation).
The melting point of the dipyrromethene-based metal complex compound in the present invention is preferably not too high from the viewpoint of solubility.

  Hereinafter, specific examples of the dipyrromethene-based metal complex compounds represented by the general formulas (II-1), (II-2), and (III) (Exemplary compounds Ia-3 to Ia-16, Ia-18 to Ia- 83, IIa-1 to IIa-8, IIa-10 to IIa-20, I-1 to I-36, and II-1 to II-11). However, the present invention is not limited to these.

  Next, specific examples (exemplary compounds III-1 to III-103) of the dipyrromethene metal complex compound represented by the general formula (II-3) are shown. However, these are not limited in the present invention.

The dipyrromethene metal complex compound obtained from the compound represented by the general formula (I) is disclosed in US Pat. Nos. 4,774,339, 5,433,896, and JP-A-2001-240761. No. 2002-1555052, Japanese Patent No. 3614586, Aust. J. Chem, 1965, 11, 1835-1845, JH Boger et al, Heteroatom Chemistry, Vol. 1, No. 5, 389 (1990), etc. It can be synthesized by the method described in 1.
For the specific synthesis method, reference can be made to the description of paragraph numbers [0131] to [0157] of JP-A-2008-292970.

~ Phthalocyanine metal complex compounds ~
As the phthalocyanine-based metal complex compound, a tetraazaporphyrin-based cyan metal complex represented by the following general formula (A) is preferable.

In the general formula (A), M ¹ represents a metal or a metal compound, and Z ¹ , Z ² , Z ³ , and Z ⁴ are each independently an atom selected from a carbon atom, a nitrogen atom, and a hydrogen atom. The atomic group which forms the 6-membered ring comprised by these is represented.
The metal or metal compound may be any metal or metal compound capable of forming a complex, and may be any divalent metal atom, divalent metal oxide, divalent metal hydroxide, or 2 Valent metal chlorides are included.

M ¹ in the general formula (A) is, for example, Zn, Mg, Si, Sn, Rh, Pt, Pd, Mo, Mn, Pb, Cu, Ni, Co, Fe, etc., and AlCl, InCl, FeCl , TiCl ₂ , SnCl ₂ , SiCl ₂ , GeCl ₂ and other metal chlorides, TiO, VO and other metal oxides, and Si (OH) _{2 and} other metal hydroxides.
Z ¹ , Z ² , Z ³ , and Z ⁴ in the general formula (A) are each independently formed to form a 6-membered ring composed of atoms selected from a carbon atom, a nitrogen atom, and a hydrogen atom. Represents the necessary atomic group. The 6-membered ring may be a saturated ring or an unsaturated ring, and may be unsubstituted or have a substituent. Furthermore, other 5-membered or 6-membered rings may be condensed. The 6-membered ring includes a benzene ring, a cyclohexane ring, a pyridine ring, a pyrimidine ring, a pyrazine ring and the like.

The maximum absorption wavelength λ _max of the tetraazaporphyrin-based cyan metal complex in the present invention is preferably from 580 nm to 700 nm, and more preferably from 600 nm to 680 nm, from the viewpoint of improving color purity. The maximum absorption wavelength was measured in the same manner as the dipyrromethene metal complex compound in the present invention.

  Of the tetraazaporphyrin-based cyanide metal complexes represented by the general formula (A), a phthalocyanine-based dye represented by the following general formula (B) (hereinafter sometimes referred to as “dye B”) is preferable.

In general formula (B), R ^{101 to} R ¹¹⁶ each independently represent a hydrogen atom or a substituent, and M ² represents a metal or a metal compound.

In the general formula (B), M ² is the same as the examples of M ¹ in the compound represented by Formula (A), is the same a preferred embodiment thereof.
In General Formula (B), R ^{101 to} R ¹¹⁶ each independently represents a hydrogen atom or a substituent, and the substituent represented by R ^{101 to} R ¹¹⁶ is R ¹ in General Formula (I) described above. to R ⁶ have the same meanings as illustrative of substituents represented by the same also its preferred embodiments. When the substituents R ^{101 to} R ¹¹⁶ of the compound represented by the general formula (B) are further substitutable groups, they may be substituted with the substituents described in the above R ^{1 to} R ⁶ , When substituted with two or more substituents, these substituents may be the same or different.

Hereinafter, examples (T-1 to T141) of the substituents of R ^{101 to} R ¹¹⁶ of the dye B are shown. However, the present invention is not limited to these.

Next, a preferable range of the phthalocyanine dye represented by the general formula (B) will be described.
The phthalocyanine dye represented by the general formula (B) has (R ¹⁰¹ and R ¹⁰⁴ ), (R ¹⁰⁵ and R ¹⁰⁸ ), and (R ¹⁰⁹ and R ¹¹² ) as α-substituents (α-substituents). , And (R ¹¹³ and R ¹¹⁶ ) have a substituent in at least one pair, or as β-substituents (β-substituents) (R ¹⁰² and R ¹⁰³ ), (R ¹⁰⁶ and R ¹⁰⁷ ) , (R ¹¹⁰ and R ¹¹¹ ), and (R ¹¹⁴ and R ¹¹⁵ ) have a substituent in at least one pair, or as substituents at the α-position and β-position, (R ¹⁰¹ and R ¹⁰³ And / or R ¹⁰² and R ¹⁰⁴ ), (R ¹⁰⁵ and R ¹⁰⁷ and / or R ¹⁰⁶ and R ¹⁰⁸ ), (R ¹⁰⁹ and R ¹¹¹ and / or R ¹¹⁰ and R ¹¹² ), and (R ¹¹³ and R ¹¹⁵ and / or R Among the combinations of ¹⁴ and R ^116), preferably it has at least one pair substituent.
Here, examples of the substituent represented by R ^{101 to} R ¹¹⁶ include a halogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a silyl group, a hydroxyl group, a carboxyl group, a cyano group, a nitro group, and an alkoxy group. Group, aryloxy group, heterocyclic oxy group, silyloxy group, acyloxy group, alkoxycarbonyloxy group, aryloxycarbonyloxy group, carbamoyloxy group, sulfamoyloxy group, alkylsulfonyloxy group, arylsulfonyloxy group, acyl group , Alkoxycarbonyl group, aryloxycarbonyl group, carbamoyl group, amino group, anilino group, carbonamido group, ureido group, imide group, alkoxycarbonylamino group, aryloxycarbonylamino group, sulfonamide group, sulfamoy Examples include amino group, azo group, alkylthio group, arylthio group, heterocyclic thio group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group, sulfamoyl group, sulfo group, phosphonyl group, and phosphinoylamino group. . Examples of M ² include Zn, Mg, Si, Sn, Rh, Pt, Pd, Mo, Mn, Pb, Cu, Ni, Co, Fe, TiO, and VO.

As a preferable range of the phthalocyanine dye represented by the general formula (B), (R ¹⁰¹ or R ¹⁰⁴ ), (R ¹⁰⁵ or R ¹⁰⁸ ), (R ¹⁰⁹ or R ¹¹² ) as an α-substituted product (mono-substituted product). , And (R ¹¹³ or R ¹¹⁶ ) have a substituent, or β-substitution (mono-substitution) (R ¹⁰² or R ¹⁰³ ), (R ¹⁰⁶ or R ¹⁰⁷ ), (R ¹¹⁰ or R ¹¹¹ ), and (R ¹¹⁴ or R ¹¹⁵ ).
Here, examples of the substituent represented by R ^{101 to} R ¹¹⁶ include a halogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a silyl group, a hydroxyl group, a carboxyl group, a cyano group, a nitro group, and an alkoxy group. Group, aryloxy group, heterocyclic oxy group, acyloxy group, carbamoyloxy group, acyl group, alkoxycarbonyl group, aryloxycarbonyl group, carbamoyl group, amino group, anilino group, carbonamido group, ureido group, imide group, alkoxy Carbonylamino group, aryloxycarbonylamino group, sulfonamido group, sulfamoylamino group, azo group, alkylthio group, arylthio group, heterocyclic thio group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group, Rufamoiru group, a sulfo group, and a phosphinoylamino group. Examples of M ² include Zn, Pd, Cu, Ni, Co, TiO, and VO.

As a more preferable range of the phthalocyanine dye represented by the general formula (B), (R ¹⁰¹ or R ¹⁰⁴ ), (R ¹⁰⁵ or R ¹⁰⁸ ), (R ¹⁰⁹ or R ¹¹² ), and (R ¹¹³ or R ¹¹⁶ ) having a substituent in at least three of them, or (R ¹⁰² or R ¹⁰³ ), (R ¹⁰⁶ or R ¹⁰⁷ ), (R ¹¹⁰ or R ¹¹¹ ), and ( R ¹¹⁴ or R ¹¹⁵ ) is a compound having a substituent in at least three of them.
Here, examples of the substituent represented by R ^{101 to} R ¹¹⁶ include a halogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a hydroxyl group, a carboxyl group, a cyano group, a nitro group, an alkoxy group, and an aryl group. Oxy group, heterocyclic oxy group, acyl group, alkoxycarbonyl group, carbamoyl group, amino group, anilino group, carbonamido group, ureido group, imide group, alkoxycarbonylamino group, aryloxycarbonylamino group, sulfonamido group, sulfo group Examples include a famoylamino group, an azo group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group, an arylsulfonyl group, a sulfamoyl group, and a sulfo group. Examples of M ¹ include Zn, Pd, Cu, Ni, Co, and VO.

As a further preferable range of the phthalocyanine dye represented by the general formula (B), (R ¹⁰¹ or R ¹⁰⁴ ), (R ¹⁰⁵ or R ¹⁰⁸ ), (R ¹⁰⁹ or R ¹¹² ), and (R ¹¹³ or R ¹¹⁶ ) having the same substituent in at least three of them, or (R ¹⁰² or R ¹⁰³ ), (R ¹⁰⁶ or R ¹⁰⁷ ), (R ¹¹⁰ or R ¹¹¹ ) as β-substituents, And (R ¹¹⁴ or R ¹¹⁵ ) at least three of them have the same substituent.
Here, examples of the substituent represented by R ^{101 to} R ¹¹⁶ include a halogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a carboxyl group, a cyano group, an alkoxy group, an aryloxy group, and a heterocyclic oxy group. Groups, acyl groups, alkoxycarbonyl groups, carbamoyl groups, carbonamido groups, ureido groups, imide groups, sulfonamido groups, alkylsulfinyl groups, arylsulfinyl groups, alkylsulfonyl groups, arylsulfonyl groups, sulfamoyl groups, sulfo groups. . Examples of M ² include Zn, Pd, Cu, Ni, Co, and VO.

As a particularly preferable range of the phthalocyanine dye represented by the general formula (B), (R ¹⁰¹ or R ¹⁰⁴ ), (R ¹⁰⁵ or R ¹⁰⁸ ), (R ¹⁰⁹ or R ¹¹² ), and (R ¹¹³ or R ¹¹⁶ ) having substituents on at least three of them, or (R ¹⁰² or R ¹⁰³ ), (R ¹⁰⁶ or R ¹⁰⁷ ), (R ¹¹⁰ or R ¹¹¹ ), and (R ¹¹⁴ or R ¹¹⁵ ) has a substituent in at least three, and the substituents are all the same compound.
Here, examples of the substituent represented by R ^{101 to} R ¹¹⁶ include a halogen atom, an alkyl group, a heterocyclic group, a carboxyl group, a cyano group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an alkoxycarbonyl group, A carbamoyl group, an alkylsulfonyl group, an arylsulfonyl group, a sulfamoyl group, or a sulfo group can be mentioned. Examples of M ² include Zn, Pd, Cu, Ni, Co, and VO.

As the most preferable range of the phthalocyanine dye represented by the general formula (B), (R ¹⁰¹ or R ¹⁰⁴ ), (R ¹⁰⁵ or R ¹⁰⁸ ), (R ¹⁰⁹ or R ¹¹² ), and (R ¹¹³ or R ¹¹⁶ ) having substituents on at least three of them, or (R ¹⁰² or R ¹⁰³ ), (R ¹⁰⁶ or R ¹⁰⁷ ), (R ¹¹⁰ or R ¹¹¹ ), and (R ¹¹⁴ or R) as β-substituents ¹¹⁵ ) have a substituent, and all of the substituents are the same compound, and the substituents represented by R ^{101 to} R ¹¹⁶ include a halogen atom, an alkyl group, and a heterocyclic ring. Group, carboxyl group, alkoxy group, aryloxy group, heterocyclic oxy group, alkoxycarbonyl group, carbamoyl group, alkylsulfonyl group, arylsulfonyl group Group, a sulfamoyl group, or a sulfo group. Examples of M ² include Zn, Cu, Co, and VO.

  Specific examples (example compounds CA-1 to CA-46, CB-1) of tetraazaporphyrin dyes represented by the general formula (A) (including phthalocyanine dyes represented by the general formula (B)) are shown below. CB-46, CC-1 to CC-10, CK-1 to CK-19, CE-1 to CE-46, CF-1 to CF-46, CG-1 to CG-46, CI-1 to CI -46, and CH-1 to CH-46). However, the present invention is not limited to these.

  For the synthesis of the tetraazaporphyrin-based cyanogen complex represented by the general formula (A), reference can be made to the descriptions in paragraph numbers [0192] to [0199] of JP-A-2008-292970.

The maximum absorption wavelength (λ _max ) of the tetraazaporphyrin-based cyan metal complex is preferably 580 nm to 700 nm, more preferably 600 nm to 680 nm, from the viewpoint of improving color purity. The maximum absorption wavelength is a value measured with a spectrophotometer UV-2400PC (manufactured by Shimadzu Corporation).

  As content in the colored curable composition of a metal complex pigment | dye, 1-50 mass% is preferable with respect to solid content of a composition, and 5-30 mass% is more preferable. When the content of the metal complex dye is 1% by mass or more, good spectral characteristics and heat resistance are obtained, and when it is 50% by mass or less, it is advantageous in terms of hue.

(B) Compound capable of forming metal complex The colored curable composition of the present invention has at least one compound (hereinafter referred to as “the complex in the present invention”) having the same dye matrix as that of the metal complex dye and capable of forming a metal complex. Sometimes referred to as "formable compound").

  The chromophore matrix means a molecular structure (chromophore (matrix skeleton)) necessary for the compound to exhibit a color. The chromophore is a structural part (conjugated system) composed of continuous unsaturated bonds in the compound, for example, aromatic,> C = C <,> C = O,> C = N-,> N = N <, -N = O, etc. are connected structural parts. Specifically, for example, a tetraazaporphyrin molecular structure and a dipyrromethene molecular structure of a phthalocyanine dye are the parent skeleton.

In the present invention, in addition to the above-described metal complex dye, a compound having the same dye matrix and capable of forming a metal complex by coordination to a metal atom or metal compound is included.
As an example,
[1] When the above-mentioned “complex in which the compound represented by the general formula (I) is coordinated to a metal atom or a metal compound” (dipyrromethene metal complex compound) is contained as the metal complex dye, the general formula (I ) Containing a compound represented by
[2] When the metal complex dye contains a “tetraazaporphyrin-based cyan metal complex represented by the general formula (A)” (phthalocyanine-based metal complex compound), the compound represented by the following general formula (C) is contained. Can be configured.

In the general formula (C), Z ¹ , Z ² , Z ³ , and Z ⁴ are each independently an atom that forms a 6-membered ring composed of atoms selected from a carbon atom, a nitrogen atom, and a hydrogen atom. Represents a group. These ^Z 1 to Z ⁴ are respectively synonymous with ^Z 1 to Z ⁴ in the general formula (A), preferable embodiments thereof are also the same.

The ratio [molar ratio] of the complex-forming compound to the metal in the metal complex dye (A) in the present invention is preferably in the range exceeding 1%. When the ratio of the complex-forming compound capable of forming a metal complex to the amount of metal exceeds 1%, a ligand necessary for coordinating ionized free metal is present in the system. It is possible to effectively prevent elution of metal ions.
Among them, the ratio [molar ratio] is more preferably 0.1% or more, and further preferably 1% or more, in that the coordination efficiency of free metal is improved and the effect of suppressing the elution of metal ions after curing is further enhanced. From the viewpoint of hue, the upper limit of the ratio [molar ratio] is preferably 10%.

The ratio of the complex-forming compound in the present invention to the (A) metal complex dye is preferably 0.1% by mass or more and 10% by mass or less. When the ratio of the complex-forming compound in the present invention is 0.1% by mass or more, the effect of inhibiting elution of metal ions after curing is high, and when it is 10% by mass or less, it is advantageous in terms of hue.
Among these, the ratio of the complex-forming compound in the present invention is more preferably 1% by mass or more and 5% by mass or less.

(C) Polymerizable compound The colored curable composition of the present invention contains at least one polymerizable compound. By containing the polymerizable compound, the colored curable composition can be configured to be curable.

  An example of the polymerizable compound is a photopolymerizable compound. As the photopolymerizable compound, a compound having a boiling point of 100 ° C. or higher under normal pressure and having at least one addition-polymerizable ethylenically unsaturated group is preferable. Examples include monofunctional acrylates and methacrylates such as polyethylene glycol mono (meth) acrylate, polypropylene glycol mono (meth) acrylate, and phenoxyethyl (meth) acrylate; polyethylene glycol di (meth) acrylate, trimethylolethanetri (Meth) acrylate, neopentyl glycol di (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, hexanediol (Meth) acrylate, trimethylolpropane tri (acryloyloxypropyl) ether, tri (acryloyloxyethyl) iso (Meth) acrylate obtained by adding ethylene oxide or propylene oxide to polyfunctional alcohols such as anurate, glycerin and trimethylolethane, JP-B-48-41708, JP-B-50-6034, JP-A-51- Urethane acrylates described in each publication such as No. 37193, polyester acrylates described in each publication such as JP-A-48-64183, JP-B-49-43191, JP-B-52-30490, etc. ) Polyfunctional acrylates and methacrylates such as epoxy acrylates which are reaction products with acrylic acid, and mixtures thereof.

  Moreover, in addition to the above-mentioned photopolymerizable compound, a thermally polymerizable compound can also be contained as a polymerizable compound. Examples of the thermally polymerizable compound include an epoxy compound, an oxetane compound, a 1,2-halohydrin compound, and the like. More specifically, Japanese Patent No. 3599866, Japanese Patent No. 4549651, Japanese Patent No. 3850756, Japanese Patent No. 4185245, etc. And the compounds described in the above.

  Furthermore, examples of the polymerizable compound include alkali-soluble resins having a polymerizable group. Examples of the alkali-soluble resin having a polymerizable group include alkali-soluble resins containing a (meth) acryloyl group and a glycidyl group, and specifically, JP-A-2007-233184 and JP-A-2005-326507. Etc. are mentioned. Further, an alkali-soluble resin having a polymerizable group in the side chain may be used, and a polymer having an allyl group, a (meth) acryl group, an allyloxyalkyl group or the like in the side chain is also useful. Preferable examples of the polymer having a polymerizable group include KS resist-106 (manufactured by Osaka Organic Chemical Industry Co., Ltd.), cyclomer P series (manufactured by Daicel Chemical Industries, Ltd.) and the like.

  Furthermore, the Japan Adhesion Association Vol. 20, no. 7, pages 300 to 308 are introduced as photocurable monomers and oligomers.

  The content of the polymerizable compound in the colored curable composition is preferably 0.1 to 90% by mass, more preferably 1.0 to 80% by mass, based on the solid content in the colored curable composition. 0.0 mass% to 70 mass% is particularly preferable.

(D) Radiation-sensitive compound The colored curable composition of the present invention preferably contains at least one radiation-sensitive compound. A radiation sensitive compound is a compound capable of causing a chemical reaction such as radical generation, acid generation, base generation, etc. with respect to ultraviolet (UV) light of 400 nm or less. The coating film can be insolubilized in an alkali developer by insolubilization by reaction, polymerization of a polymerizable monomer or oligomer coexisting in the coating film, crosslinking of a crosslinking agent, or the like.

  Among the radiation sensitive compounds, it is preferable to contain a photopolymerization initiator. The photopolymerization initiator is not particularly limited as long as it can polymerize the polymerizable compound, and is preferably selected from the viewpoints of characteristics, initiation efficiency, absorption wavelength, availability, cost, and the like.

Examples of the photopolymerization initiator include at least one active halogen compound selected from a halomethyl oxadiazole compound, a halomethyl-s-triazine compound, a 3-aryl-substituted coumarin compound, a lophine dimer, a benzophenone compound, and an acetophenone compound. And derivatives thereof, cyclopentadiene-benzene-iron complex and salts thereof, and oxime compounds.
Specific examples of these photopolymerization initiators include those described in paragraph numbers [0261] to [0266] of JP-A-2008-292970. Among these, an oxime compound is preferable from the viewpoint of rapid polymerization reaction.

The oxime compound (hereinafter also referred to as oxime photopolymerization initiator) is not particularly limited, and is described in, for example, JP 2000-80068 A, WO 02/100903 A1, JP 2001-233842 A, and the like. Examples include oxime compounds.
Specific examples include 2- (O-benzoyloxime) -1- [4- (phenylthio) phenyl] -1,2-butanedione, 2- (O-benzoyloxime) -1- [4- (phenylthio). Phenyl] -1,2-pentanedione, 2- (O-benzoyloxime) -1- [4- (phenylthio) phenyl] -1,2-hexanedione, 2- (O-benzoyloxime) -1- [4 -(Phenylthio) phenyl] -1,2-heptanedione, 2- (O-benzoyloxime) -1- [4- (phenylthio) phenyl] -1,2-octanedione, 2- (O-benzoyloxime)- 1- [4- (methylphenylthio) phenyl] -1,2-butanedione, 2- (O-benzoyloxime) -1- [4- (ethylphenylthio) phenyl] -1, -Butanedione, 2- (O-benzoyloxime) -1- [4- (butylphenylthio) phenyl] -1,2-butanedione, 1- (O-acetyloxime) -1- [9-ethyl-6- ( 2-Methylbenzoyl) -9H-carbazol-3-yl] ethanone, 1- (O-acetyloxime) -1- [9-methyl-6- (2-methylbenzoyl) -9H-carbazol-3-yl] ethanone 1- (O-acetyloxime) -1- [9-propyl-6- (2-methylbenzoyl) -9H-carbazol-3-yl] ethanone, 1- (O-acetyloxime) -1- [9- Ethyl-6- (2-ethylbenzoyl) -9H-carbazol-3-yl] ethanone, 1- (O-acetyloxime) -1- [9-ethyl-6- (2-butylbenzoyl) Such as 9H- carbazol-3-yl] ethanone and the like. However, it is not limited to these.

  Of these, 2- (O-benzoyloxime) -1- [4- (phenylthio) phenyl] -1,2-octanedione, 1- (O-acetyl) is capable of forming a pattern with a smaller exposure amount. Oxime) -1- [9-ethyl-6- (2-methylbenzoyl) -9H-carbazol-3-yl] ethanone and other oxime-O-acyl compounds are particularly preferred. Specifically, for example, CGI- 124, CGI-242, Irgacure OXE01 (manufactured by Ciba Japan Co., Ltd.) and the like.

  In the present invention, a compound represented by the following general formula (1) is more preferable as the oxime compound from the viewpoint of sensitivity and stability over time.

  In the general formula (1), R and X each independently represent a monovalent substituent, A represents a divalent organic group, and Ar represents an aryl group. n is an integer of 1-5.

  R in the general formula (1) is preferably an acyl group from the viewpoint of high sensitivity, and specifically, an acetyl group, a propionyl group, a benzoyl group, and a toluyl group are preferable.

  A in the general formula (1) is an unsubstituted alkylene group or an alkyl group (for example, a methyl group, an ethyl group, a tert-butyl group, or a dodecyl group) from the viewpoint of increasing sensitivity and suppressing coloring due to heating. Substituted alkylene group, alkylene group substituted with alkenyl group (for example, vinyl group, allyl group), aryl group (for example, phenyl group, p-tolyl group, xylyl group, cumenyl group, naphthyl group, anthryl group, phenanthryl) Group, a styryl group) is preferable.

  Ar in the general formula (1) is preferably a substituted or unsubstituted phenyl group from the viewpoint of increasing sensitivity and suppressing coloring due to heating. In the case of a substituted phenyl group, the substituent is preferably a halogen group such as a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.

X in the general formula (1) is an alkyl group which may have a substituent, an aryl group which may have a substituent, or a substituent from the viewpoint of improving solvent solubility and absorption efficiency in the long wavelength region. An alkynyl group that may have a substituent, an alkynyl group that may have a substituent, an alkoxy group that may have a substituent, an aryloxy group that may have a substituent, and a substituent. An alkylthioxy group, an arylthioxy group which may have a substituent, and an amino group which may have a substituent are preferable.
Moreover, n in General formula (1) has a preferable integer of 1-2.

  Hereinafter, although the specific example of a compound represented by General formula (1) is shown below, this invention is not limited to these.

  In addition to the above photopolymerization initiator, other known photopolymerization initiators described in paragraph [0079] of JP-A No. 2004-295116 may be used in the colored curable composition of the present invention. .

A radiation sensitive compound (especially photoinitiator) can be contained individually by 1 type or in combination of 2 or more types.
When using a photopolymerization initiator, the content of the photopolymerization initiator in the colored curable composition (the total content in the case of two or more) is from 0.01 to the total solid content of the polymerizable compound. 50 mass% is preferable, 1-30 mass% is more preferable, and 1-20 mass% is especially preferable. When the content is within the above range, the polymerization proceeds well and the film strength is excellent.

A sensitizer and a light stabilizer can be used in combination with the photopolymerization initiator.
Specific examples thereof include benzoin, benzoin methyl ether, 9-fluorenone, 2-chloro-9-fluorenone, 2-methyl-9-fluorenone, 9-anthrone, 2-bromo-9-anthrone, and 2-ethyl-9-anthrone. 9,10-anthraquinone, 2-ethyl-9,10-anthraquinone, 2-t-butyl-9,10-anthraquinone, 2,6-dichloro-9,10-anthraquinone, xanthone, 2-methylxanthone, 2- Methoxyxanthone, 2-ethoxyxanthone, thioxanthone, 2,4-diethylthioxanthone, acridone, 10-butyl-2-chloroacridone, benzyl, dibenzalacetone, p- (dimethylamino) phenylstyryl ketone, p- (dimethyl Amino) phenyl-p-methylstyryl ketone Examples include benzophenone, p- (dimethylamino) benzophenone (or Michler's ketone), p- (diethylamino) benzophenone, benzoanthrone, benzothiazole compounds described in JP-B-51-48516, and tinuvin 1130, 400. .

  In addition to the above, it is preferable to add a thermal polymerization inhibitor, for example, hydroquinone, p-methoxyphenol, di-t-butyl-p-cresol, pyrogallol, t-butylcatechol, benzoquinone, 4, 4′-thiobis (3-methyl-6-tert-butylphenol), 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 2-mercaptobenzimidazole and the like are useful.

(E) Binder The colored curable composition of the present invention preferably contains at least one binder. The binder can be selected from those having alkali solubility. In this case, it is not particularly limited as long as it has alkali solubility, but is preferably selected from the viewpoints of heat resistance, developability, availability, and the like.

  The alkali-soluble binder is preferably a linear organic high molecular polymer that is soluble in an organic solvent and can be developed with a weakly alkaline aqueous solution. Examples of such linear organic high molecular polymers include polymers having a carboxylic acid in the side chain, such as JP-A-59-44615, JP-B-54-34327, JP-B-58-12577, and JP-B-54-. No. 25957, JP-A-59-53836, JP-A-59-71048, etc., methacrylic acid copolymer, acrylic acid copolymer, itaconic acid copolymer, crotonic acid copolymer, maleic acid Examples thereof include a copolymer and a partially esterified maleic acid copolymer. As the alkali-soluble binder, an acidic cellulose derivative having a carboxylic acid in the side chain is particularly useful. In addition, polymers obtained by adding an acid anhydride to a polymer having a hydroxyl group, polyhydroxystyrene resins, polysiloxane resins, poly (2-hydroxyethyl (meth) acrylate), polyvinylpyrrolidone, polyethylene oxide, polyvinyl alcohol, etc. Is useful.

  In addition, a monomer having a hydrophilic group may be copolymerized. Examples thereof include alkoxyalkyl (meth) acrylate, hydroxyalkyl (meth) acrylate, glycerol (meth) acrylate, (meth) acrylamide, and N-methylolacrylamide. Secondary and tertiary alkylacrylamides, dialkylaminoalkyl (meth) acrylates, morpholino (meth) acrylates, N-vinylpyrrolidone, N-vinylcaprolactam, vinylimidazole, vinyltriazole, methyl (meth) acrylate, ethyl (meth) Examples include acrylate, branched or linear propyl (meth) acrylate, branched or linear butyl (meth) acrylate, phenoxyhydroxypropyl (meth) acrylate, and the like.

Other examples of the monomer having a hydrophilic group include a tetrahydrofurfuryl group, a phosphoric acid moiety, a phosphate ester moiety, a quaternary ammonium salt moiety, an ethyleneoxy chain, a propyleneoxy chain, a sulfonic acid and its salt moiety, and a morpholinoethyl group. Including monomers are also useful.
In order to increase the strength of the cured film, alcohol-soluble nylon, polyether of 2,2-bis (4-hydroxyphenyl) -propane and epichlorohydrin, and the like are also useful.

  The binder is preferably a polyhydroxystyrene resin, a polysiloxane resin, an acrylic resin, an acrylamide resin, or an acrylic / acrylamide copolymer resin from the viewpoint of heat resistance. From the viewpoint of control of developability, acrylic resins, acrylamide resins, and acrylic / acrylamide copolymer resins are preferable. As said acrylic resin, the copolymer etc. which consist of monomers chosen from benzyl (meth) acrylate, (meth) acryl, hydroxyethyl (meth) acrylate, (meth) acrylamide etc. are preferable.

The binder preferably has a mass average molecular weight (polystyrene equivalent value measured by GPC method) of 1000 to 2 × 10 ⁵ , more preferably 2000 to 1 × 10 ⁵ , and 5000 to ⁵ × 10 ⁴ . Polymers are particularly preferred.

  The content of the binder in the colored curable composition is preferably 10 to 90% by mass, more preferably 20 to 80% by mass, and particularly preferably 30 to 70% by mass with respect to the total solid content of the composition.

(F) Solvent In preparing the colored curable composition of the present invention, a solvent can generally be contained. The solvent is not particularly limited as long as it can satisfy the solubility of each component of the composition and the applicability of the composition, but it is particularly selected in consideration of the solubility, applicability, and safety of the binder. It is preferable that
Specific examples of the solvent include those described in paragraphs [0272] to [0273] of JP-A-2008-292970. Among them, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl cellosolve acetate, ethyl lactate, diethylene glycol dimethyl ether, butyl acetate, methyl 3-methoxypropionate, 2-heptanone, cyclohexanone, ethyl carbitol acetate, butyl Carbitol acetate, propylene glycol methyl ether, propylene glycol methyl ether acetate, etc. are more preferred

(E) Various additives In the colored curable composition of the present invention, various additives, for example, fillers, polymer compounds other than those described above, surfactants, adhesion promoters, antioxidants, ultraviolet rays are optionally added. Absorbers, anti-aggregation agents and the like can be blended.

  Examples of the various additives include those described in paragraphs [0275] to [0276] of JP-A-2008-292970.

-Coloring component-
As the coloring component, in addition to the metal complex dye, other dyes, pigments, and the like may be further contained as long as the effects of the present invention are not impaired. By including various combinations of other dyes and pigments, it is possible to achieve the target hue and color purity.

  The colored curable composition of the present invention is used for forming a colored pixel such as a color filter used in a liquid crystal display element (LCD) or a solid-state imaging element (for example, CCD, CMOS, etc.), printing ink, inkjet ink, and It can be suitably used as a production application for paints. In this invention, it can use suitably for the use of the color filter for liquid crystal display elements especially.

<Color filter and manufacturing method thereof>
The color filter of the present invention includes at least (A) a metal complex dye and (B) a compound having the same dye matrix as the metal complex dye and capable of forming a metal complex (complex-forming compound in the present invention). The ratio of the (B) complex-forming compound in the present invention to (A) the metal complex dye is in the range of 0.1% by mass to 10% by mass. The color filter of the present invention is configured by providing a support and a colored region provided on the support and formed using the above-described colored curable composition of the present invention.

  The color filter of the present invention contains (B) the complex-forming compound according to the present invention together with the (A) metal complex dye in the above proportion, so that the elution of metal ions is small, and therefore particularly in a liquid crystal display element. When used, metal ions eluted from the color filter can be suppressed from being mixed into the liquid crystal material. As a result, the specific resistance of the liquid crystal material can be drastically prevented from being lowered, and liquid crystal molecules can be prevented from being obstructed, that is, the display characteristics can be prevented from being lowered.

  The color filter of the present invention can form a cured colored film (colored pattern) containing the (A) metal complex dye together with the (B) complex-forming compound of the present invention in the above proportion. Any method can be used. Preferably, it is produced using the colored curable composition of the present invention.

The color filter of the present invention comprises a step of coating the colored curable composition of the present invention on a support to form a colored layer, and the formed colored layer is exposed in a pattern and developed to develop a colored region. And a step of forming the layer can be suitably produced by a method comprising a step of forming the step.
Specifically, after the colored curable composition of the present invention is applied on a support by a coating method such as spin coating, cast coating, roll coating, etc. to form a radiation-sensitive composition layer, this layer is, for example, By exposing to a predetermined pattern through a mask pattern and developing with a developer, a desired colored region that is a colored pattern constituting the color filter can be formed. By repeating these operations in accordance with the desired number of colors, a color filter having a desired number of hues can be obtained.

  As the light source used for exposure, a light source having a wavelength of 400 nm or less is suitable. Examples of the light source include xenon lamps, halogen lamps, tungsten lamps, high-pressure mercury lamps, ultrahigh-pressure mercury lamps, metal halide lamps, medium-pressure mercury lamps, low-pressure mercury lamps, and the like described in paragraph [0278] of JP-A-2008-292970. Is mentioned. From the viewpoint of cost and exposure energy, ultraviolet rays are preferred, and i rays are further preferred.

  The pattern formed by exposure and development can be provided with a curing step for further curing by applying heating and / or exposure as necessary. As light or radiation at this time, radiation such as i-line is preferable.

  As the support, for example, soda glass used for liquid crystal display elements, Pyrex (registered trademark) glass, quartz glass, and those obtained by attaching a transparent conductive film to these, photoelectric conversion element substrates used for imaging elements, For example, a silicon substrate, a complementary metal oxide semiconductor (CMOS), or the like can be given. These supports may be formed with black stripes that separate pixels. In addition, an undercoat layer may be provided on the support, if necessary, from the viewpoint of improving adhesion with a layer provided thereon, preventing diffusion of a substance, or flattening the support surface.

The developer used for development is not particularly limited as long as it is composed of a composition that dissolves a region (uncured portion) to be developed and removed of the colored curable composition but does not dissolve other regions (cured portion). There is no. Specifically, a combination of various organic solvents or an alkaline aqueous solution can be used as the developer. As said organic solvent, the above-mentioned solvent used when preparing a composition is mentioned. Moreover, as said alkaline aqueous solution, the alkaline aqueous solution which melt | dissolved the alkaline compound so that the density | concentration may be 0.001-10 mass%, Preferably it is 0.01-1 mass% can be used. Examples of the alkaline compound include sodium hydroxide, potassium hydroxide, sodium carbonate, sodium oxalate, sodium metasuccinate, aqueous ammonia, ethylamine, diethylamine, dimethylethanolamine, tetramethylammonium hydroxide, tetraethylammonium hydroxide, choline, Examples include pyrrole, piperidine, and 1,8-diazabicyclo- [5.4.0] -7-undecene.
When an alkaline aqueous solution is used, washing with water is generally performed after development.

  The color filter of the present invention can be used for a liquid crystal display element or a solid-state image sensor, and is particularly suitable for use in a liquid crystal display element. When used in a liquid crystal display device, it contains a metal complex dye with excellent spectral characteristics and heat resistance as a colorant, but there are few liquid crystal molecule alignment defects due to a decrease in specific resistance, and the color of the display image is good Excellent display characteristics.

<Liquid crystal display element>
Since the color filter of the present invention has colored pixels that are excellent in hue and excellent in light resistance, it is particularly suitable as a color filter for liquid crystal display devices. A liquid crystal display device provided with such a color filter can display a high-quality image having a good display image color and excellent display characteristics.

  For the definition of display devices and details of each display device, refer to, for example, “Electronic Display Devices (Akio Sasaki, published by Industrial Research Institute 1990)”, “Display Devices (Junaki Ibuki, Industrial Books Co., Ltd.) Issued in the first year). The liquid crystal display device is described in, for example, “Next-generation liquid crystal display technology (edited by Tatsuo Uchida, published by Kogyo Kenkyukai 1994)”. The liquid crystal display device to which the present invention can be applied is not particularly limited, and can be applied to, for example, various types of liquid crystal display devices described in the “next generation liquid crystal display technology”.

The color filter of the present invention is particularly effective for a color TFT liquid crystal display device. The color TFT liquid crystal display device is described in, for example, “Color TFT liquid crystal display (issued in 1996 by Kyoritsu Publishing Co., Ltd.)”. Furthermore, the present invention is applied to a liquid crystal display device with a wide viewing angle such as a lateral electric field driving method such as IPS, a pixel division method such as MVA, STN, TN, VA, OCS, FFS, and R-OCB. it can.
The color filter of the present invention can also be used for a bright and high-definition COA (Color-filter On Array) system. In a COA type liquid crystal display device, the required characteristics for the color filter layer require the required characteristics for the interlayer insulating film in addition to the normal required characteristics as described above, that is, low dielectric constant and peeling liquid resistance. Sometimes. In the color filter of the present invention, the (A) metal complex dye and the (B) complex-forming compound of the present invention are contained in the above ratio and cured, and the specific resistance of the liquid crystal material It is considered that the decrease is drastically prevented, and the alignment inhibition of the liquid crystal molecules, that is, the decrease in display characteristics is solved. As a result, it is excellent in good hues such as color purity, so that it is possible to provide a COA liquid crystal display device with high resolution and excellent long-term durability. In order to satisfy the required characteristics of a low dielectric constant, a resin film may be provided on the color filter layer.
Further, the colored layer formed by the COA method has a side length of about 1 to 15 μm in order to connect the ITO electrode arranged on the colored layer and the terminal of the driving substrate below the colored layer. It is necessary to form a conduction path such as a rectangular through hole or a U-shaped depression, and the dimension of the conduction path (that is, the length of one side) is preferably 5 μm or less, but the present invention is used. Thus, it is possible to form a conduction path of 5 μm or less. These image display methods are described, for example, on page 43 of "EL, PDP, LCD display-Technology and latest trends in the market (issued by Toray Research Center Research Division 2001)".

The liquid crystal display element of the present invention includes various members such as an electrode substrate, a polarizing film, a retardation film, a backlight, a spacer, and a viewing angle guarantee film in addition to the color filter of the present invention. The color filter of the present invention can be applied to a liquid crystal display element composed of these known members. Regarding these materials, for example, “'94 Liquid Crystal Display Peripheral Materials / Chemicals Market (Kentaro Shima, CMC 1994)”, “2003 Liquid Crystal Related Markets Current Status and Future Prospects (Volume 2)” Fuji Chimera Research Institute, Ltd., published in 2003) ”.
Regarding backlighting, SID meeting Digest 1380 (2005) (A. Konno et.al), Monthly Display December 2005, pages 18-24 (Yasuhiro Shima), pages 25-30 (Yukiaki Yagi), etc. Are listed.

  When the color filter of the present invention is used for a liquid crystal display element, a high contrast can be realized when combined with a conventionally known three-wavelength tube of a cold cathode tube, and further, red, green and blue LED light sources (RGB-LED). By using as a backlight, a liquid crystal display device having high luminance and high color purity and good color reproducibility can be provided.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples as long as the gist thereof is not exceeded. Unless otherwise specified, “part” is based on mass.

Example 1
-Preparation of photosensitive colored curable composition-
(1) Preparation of Solution A1 The following components were mixed and stirred to prepare Solution A1.
<Composition of Solution A1>
・ Propylene glycol monomethyl ether acetate 3.1g
(PGMEA; organic solvent)
-Benzyl methacrylate / methacrylic acid copolymer ... 13.22 g
(Alkali-soluble resin)
・ Dipentaerythritol hexaacrylate (polymerizable compound) ... 6.45 g
・ Polymerization inhibitor (p-methoxyphenol): 0.0032 g
1.2-octanedione, 1- [4- (phenylthio)-, 2- (O-benzoyloxime)] 1.55 g
(Irgacure OXE01, Ciba Japan KK; photopolymerization initiator)
・ Fluorosurfactant ... 4.14g
(Megafac F-781-F, manufactured by Dainippon Ink & Chemicals, Inc.)

(2) Preparation of Solution B1 The following components were mixed and stirred to prepare Solution B1.
<Composition of Solution B1>
・ Propylene glycol monomethyl ether acetate ... 48.11g
(PGMEA; organic solvent)
・ Blue pigment dispersion ... 20.83g
Pigment Blue 15: 6 dispersion (solid content concentration 20.0 mass%, pigment concentration 12.8 mass%)
Dipyrromethene metal complex dye (a) having the following structure: 2.53 g
[(A) Zn Complex of Compound Represented by General Formula (I)]
・ The following dipyrromethene compound (b): 0.05 g
[(B) Compound represented by formula (I)]

-Dipyrromethene metal complex dye (a)-

-Dipyrromethene compound (b)-

(3) Preparation of photosensitive colored curable composition 28.5 g of the solution A1 and 71.5 g of the solution B1 were mixed, stirred and filtered to prepare a photosensitive colored curable composition. . At this time, the ratio (b / a ratio) of the dipyrromethene compound (b) to the dipyrromethene metal complex dye (a) was 2% by mass.

-Formation of photosensitive colored film-
Next, after applying the photosensitive colored curable composition prepared above on glass (# 1737; manufactured by Corning) by spin coating, the volatile components are volatilized by heating at 100 ° C. for 80 seconds. A photosensitive colored film was formed. After cooling, the photosensitive colored film was irradiated with i-line (wavelength 365 nm) and cured. An ultra-high pressure mercury lamp was used as the i-line light source, and it was irradiated as parallel light. At this time, the irradiation light quantity was 207 mJ / cm ² . Next, post-baking treatment was performed on the colored film at 230 ° C. for 30 minutes to obtain a colored film having a thickness of 2 μm.

-Evaluation-
The liquid crystal specific resistance value, heat resistance, and spectral characteristics of the colored film obtained above were evaluated by the methods shown below. The evaluation results are shown in Table 1 below.

(1) Specific resistance value of liquid crystal The colored film obtained above was scraped off, and 9.0 mg of the solidified product was added to 2.00 g of a liquid crystal material ZLI-4792 (manufactured by Merck & Co.) and heated at 120 ° C. for 5 hours. Thereafter, filtration was performed, and the specific resistance of the liquid crystal material was measured with a liquid crystal specific resistance measuring device (ADVANTEST R8340 ULTRA HIGHT RESISTANCE ME, manufactured by Advantest Co., Ltd.), and the presence or absence of metal ion elution was evaluated according to the following evaluation criteria. Since the specific resistance of the liquid crystal material decreases due to the elution of metal ions, the elution of metal ions can be evaluated by the degree of the specific resistance.
<Evaluation criteria>
A: Specific resistance ≧ 5.0 × 10 ¹¹ MΩ, and there was no seizure failure when a panel was formed.
○: 5.0 × 10 ¹¹ MΩ> specific resistance ≧ 1.0 × 10 ¹¹ MΩ, and there was no seizing failure when the panel was formed.
×: Specific resistance <1.0 × 10 ¹¹ MΩ, and a seizure failure occurred when a panel was formed.

(2) Heat resistance The colored film obtained above was heated at 240 ° C for 60 minutes, and the hue after heating was measured with a microspectrophotometer (manufactured by Olympus). The hue before heating was also measured in the same manner. Based on these measurement results, a color difference (ΔEab) before and after heating was calculated, and heat resistance was evaluated according to the following evaluation criteria using the color difference as an index.
<Evaluation criteria>
A: ΔEab <1, indicating good heat resistance.
○: 1 ≦ ΔEab <3, and the heat resistance was acceptable in practical use.
X: ΔEab ≧ 3 and did not have practically acceptable heat resistance.

(3) Spectral characteristics The transmission spectrum of the colored film obtained above was measured using a microspectrophotometer MCPD-3000 (trade name) manufactured by Otsuka Electronics Co., Ltd. From the obtained transmission spectrum, the color coordinate x value, y value, and Y value in the CIE 1931 color system were determined.
The spectral characteristics can be said to have excellent spectral characteristics when the Y value at (x, y) = (0.138, 0.084) is high.

(Example 2)
Example 1 and Example 1 except that the amount of the dipyrromethene compound (b) used for the preparation of the solution B1 was changed from 0.05 g to 0.005 g (b / a ratio = 0.2 mass%). Similarly, a photosensitive colored curable composition was prepared, and a colored film was formed and evaluated. The evaluation results are shown in Table 1 below.

(Example 3)
The same procedure as in Example 1 was conducted except that the amount of the dipyrromethene compound (b) used in the preparation of the solution B1 in Example 1 was changed from 0.05 g to 0.2 g (b / a ratio = 8% by mass). Then, a photosensitive colored curable composition was prepared to form a colored film and evaluated. The evaluation results are shown in Table 1 below.

Example 4
In Example 1, the dipyrromethene compound (b) used for the preparation of the solution B1 is shown below, replacing the dipyrromethene compound (a) used for the preparation of the solution A1 with the dipyrromethene metal complex (c) having the structure shown below. A photosensitive colored curable composition was prepared in the same manner as in Example 1 except that the structure was replaced with the dipyrromethene compound (d), and a colored film was formed and evaluated. The evaluation results are shown in Table 1 below.

-Dipyrromethene metal complex (c)-

-Dipyrromethene compound (d)-

(Example 5)
In Example 1, except that the dipyrromethene compound (a) used for the preparation of the solution A1 was replaced with a dipyrromethene metal complex (e) having the structure shown below, the photosensitive colored curability was the same as in Example 1. A composition was prepared to form a colored film and evaluated. The evaluation results are shown in Table 1 below.

-Dipyrromethene metal complex (e)-

(Comparative Example 1)
In Example 1, except that the dipyrromethene compound (b) used for the preparation of the solution B1 was not contained, a photosensitive colored curable composition was prepared and a colored film was formed in the same manner as in Example 1. Together with the evaluation. The evaluation results are shown in Table 1 below.

(Comparative Example 2)
In Example 1, it changed like Example 1 except having changed the quantity of the dipyrromethene compound (b) used for preparation of solution B1 from 0.05 g to 0.5 g (b / a ratio = 20 mass%). Then, a photosensitive colored curable composition was prepared to form a colored film and evaluated. The evaluation results are shown in Table 1 below.

(Comparative Example 3)
A photosensitive colored curable composition in the same manner as in Example 1 except that the dipyrromethene compound (b) used in the preparation of the solution B1 in Example 1 was replaced with the compound (f) having the structure shown below. Were prepared to form a colored film and evaluated. The evaluation results are shown in Table 1 below.

-Compound (f)-

(Comparative Example 4)
In Example 1, except that the amount of the dipyrromethene compound (b) used for the preparation of the solution B1 was changed from 0.05 g to 0.33 g (b / a ratio = 13% by mass), the same as in Example 1. Then, a photosensitive colored curable composition was prepared to form a colored film and evaluated.

(Example 6)
-Preparation of photosensitive colored curable composition-
(1) Preparation of Solution A2 The following components were mixed and stirred to prepare Solution A2.
<Composition of Solution A2>
・ Ethyl 3-ethoxypropionate ... 23.83 g
Allyl methacrylate / methacrylic acid (80:20 molar ratio) ... 2.64 g
Copolymer of adduct of benzyl methacrylate / methacrylic acid / glycidyl methacrylate and methacrylic acid (30/33/37 [molar ratio], 45 mass% propylene glycol monomethyl ether acetate solution) ... 5.88 g
・ Dipentaerythritol hexaacrylate… 6.00g
1,2-octanedione, 1- [4- (phenylthio)-, 2- (O-benzoyloxime)]
(Irgacure OXE01, manufactured by Ciba Specialty Chemicals)
... 1.157 g
・ 2,2′-bis (2-chlorophenyl) -4,4′5,5′-tetraphenyl-1,2-bi (1-H-imidazole) (BCIM, manufactured by Hodogaya Chemical Co., Ltd.) .085g
・ 4,4'-bis (diethylamino) benzophenone 0.085g
・ N-phenyl-2-mercaptobenzimidazole ・ ・ ・ 0.114g
・ P-methoxyphenol ・ ・ ・ 0.003g
1,2-epoxy-4- (2-oxiranyl) cyclohexane adduct of 2,2-bis (hydroxymethyl) -1-butanol (EHPE-3150, manufactured by Daicel Chemical Industries, Ltd.) ... 1.029
・ 0.2% propylene glycol monomethyl ether acetate solution of fluorosurfactant (Megafac F-554, manufactured by Dainippon Ink & Chemicals, Inc.) 4.12 g

(2) Preparation of Solution B2 The following components were mixed and stirred to prepare Solution B2.
<Composition of Solution B2>
・ Propylene glycol monomethyl ether acetate ・ ・ ・ 31.43g
(PGMEA; organic solvent)
・ Blue pigment dispersion ... 21.03g
Pigment Blue 15: 6 dispersion (solid content concentration 20.0 mass%, pigment concentration 12.8 mass%)
-The dipyrromethene metal complex dye (a) having the above structure 2.55 g
[(A) Zn Complex of Compound Represented by General Formula (I)]
-Said dipyrromethene compound (b) ... 0.050g
[(B) Compound represented by formula (I)]

(3) Preparation of photosensitive colored curable composition 28.5 g of the solution A2 and 71.5 g of the solution B2 were mixed, stirred and filtered to prepare a photosensitive colored curable composition. . At this time, the ratio (b / a ratio) of the dipyrromethene compound (b) to the dipyrromethene metal complex dye (a) was 2% by mass.

-Formation of photosensitive colored film-
Next, after applying the photosensitive colored curable composition prepared above on glass (# 1737; manufactured by Corning) by spin coating, the volatile components are volatilized by heating at 100 ° C. for 80 seconds. A photosensitive colored film was formed. After cooling, the photosensitive colored film was irradiated with i-line (wavelength 365 nm) and cured. An ultra-high pressure mercury lamp was used as the i-line light source, and it was irradiated as parallel light. At this time, the irradiation light quantity was 207 mJ / cm ² . Next, post-baking treatment was performed on the colored film at 230 ° C. for 30 minutes to obtain a colored film having a thickness of 2 μm. About the obtained colored film, the liquid crystal specific resistance value, heat resistance, and spectral characteristics were evaluated in the same manner as in Example 1. The evaluation results are shown in Table 1 below.

(Example 7)
In the preparation of the solution A2 of Example 6, instead of “addition of benzyl methacrylate / methacrylic acid / glycidyl methacrylate and methacrylic acid (30/33/37 [molar ratio], 45 mass% propylene glycol monomethyl ether acetate solution”), Except for using “addition of cyclohexyl methacrylate / methacrylic acid / methyl methacrylate / glycidyl methacrylate and methacrylic acid (46/20/2/32 [molar ratio], 45 mass% propylene glycol monomethyl ether acetate solution)” In the same manner as in Example 6, a photosensitive colored curable composition was prepared, a photosensitive colored film was formed, and the same evaluation was performed.

(Comparative Example 5)
In Example 6, the dipyrromethene compound (b) used for the preparation of the solution B2 was not contained, and the same procedure as in Example 6 was used except that the solution A3 shown below was used instead of the solution A2. A curable composition was prepared, a photosensitive colored film was formed, and the same evaluation was performed.

-Preparation of solution A3-
The following components were mixed and stirred to prepare Solution A3.
<Composition of Solution A3>
・ Ethyl 3-ethoxypropionate ... 19.67g
-Benzyl methacrylate / methacrylic acid copolymer (70/30 [molar ratio], mass average molecular weight: 5000) ... 12.27 g
・ Dipentaerythritol hexaacrylate ・ ・ ・ 6.45g
1,2-octanedione, 1- [4- (phenylthio)-, 2- (O-benzoyloxime)]
(Irgacure OXE01, manufactured by Ciba Specialty Chemicals)
... 1.244 g
・ 2,2′-bis (2-chlorophenyl) -4,4′5,5′-tetraphenyl-1,2-bi (1-H-imidazole) (BCIM, manufactured by Hodogaya Chemical Co., Ltd.) .092g
・ 4,4'-bis (diethylamino) benzophenone 0.092g
・ N-phenyl-2-mercaptobenzimidazole ・ ・ ・ 0.122g
・ P-methoxyphenol ・ ・ ・ 0.003g
・ 0.2% propylene glycol monomethyl ether acetate solution of fluorosurfactant (Megafac F-554, manufactured by Dainippon Ink & Chemicals, Inc.) 4.12 g

As shown in Table 1, in the examples, the elution of metal ions is suppressed, and a high specific resistance is maintained, and the image when the image is displayed on the liquid crystal display element has a good hue and is clear. Vivid images could be displayed.
On the other hand, in the comparative example, the decrease in the liquid crystal specific resistance was not suppressed, and the display image was poor in color and inferior in display characteristics.

Claims (13)

(A) a metal complex dye;
(B) a compound having the same dye matrix as the metal complex dye and capable of forming a metal complex;
(C) a polymerizable compound;
A colored curable composition wherein the ratio of the compound (B) to the metal complex dye (A) is 0.1% by mass or more and 10% by mass or less. At least one of the (A) metal complex dye is a complex in which a compound represented by the following general formula (I) is coordinated to a metal atom or a metal compound, and at least one of the (B) compound is represented by the following general formula ( The colored curable composition according to claim 1, which is a compound represented by I).

[In General Formula (I), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , and R ⁶ each independently represent a hydrogen atom or a substituent, and R ⁷ represents a hydrogen atom, a halogen atom, Represents an alkyl group, an aryl group, or a heterocyclic group; ]   The colored curable composition according to claim 1 or 2, wherein a ratio (molar ratio) of the compound (B) to a metal in the (A) metal complex dye exceeds 1%. The colored curable composition according to any one of claims 1 to 3, wherein the (A) metal complex dye is a complex represented by the following general formula (II-1).

[In General Formula (II-1), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , and R ⁶ each independently represents a hydrogen atom or a substituent. R ⁷ represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a heterocyclic group. Ma represents a metal atom or a metal compound, X ¹ represents a group capable of binding to Ma, and X ² represents a group necessary for neutralizing the charge of Ma. X ¹ and X ² may be bonded to each other to form a 5-membered, 6-membered, or 7-membered ring. ] The said (A) metal complex pigment | dye is at least 1 type chosen from the complex group represented by the following general formula (II-2) or general formula (II-3), Any one of Claims 1-4. The colored curable composition described in 1.

[In General Formula (II-2), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ , R ¹² , and R ¹³ are each independent. Represents a hydrogen atom or a substituent. R ⁷ and R ¹⁴ each independently represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a heterocyclic group. Ma represents a metal atom or a metal compound. ]

[In General Formula (II-3), R ² , R ³ , R ⁴ , and R ⁵ each independently represent a hydrogen atom or a substituent, and R ⁷ represents a hydrogen atom, a halogen atom, an alkyl group, Represents an aryl group or a heterocyclic group. R ⁸ and R ⁹ each independently represents an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an alkylamino group, an arylamino group, or a heterocyclic amino group. Ma represents a metal atom or a metal compound. X ³ represents NR (R represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group), a nitrogen atom, an oxygen atom, or a sulfur atom. X ⁴ represents NRa (Ra represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group), an oxygen atom, or a sulfur atom. . Y ¹ represents NRc (Rc represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group), a nitrogen atom, or a carbon atom; ² represents a nitrogen atom or a carbon atom. X ⁵ represents a group capable of binding to Ma, and a represents 0, 1, or 2. R ⁸ and Y ¹ may be bonded to each other to form a 5-membered, 6-membered, or 7-membered ring, and R ⁹ and Y ² are bonded to each other to form a 5-, 6-, or 7-membered ring. The ring may be formed. ]   The colored curable composition according to any one of claims 1 to 5, wherein a ratio of the (B) compound to the (A) metal complex dye is 1% by mass or more and 5% by mass or less.   The colored curable composition according to any one of claims 1 to 6, wherein the metal in the (A) metal complex dye is zinc.   The coloring according to any one of claims 1 to 7, wherein the polymerizable compound (C) contains at least one polyfunctional photopolymerizable compound and at least one polyfunctional thermopolymerizable compound. Curable composition.   The colored curable composition according to any one of claims 1 to 8, comprising an alkali-soluble resin having a polymerizable group as the polymerizable compound (C). (A) a metal complex dye;
(B) a compound having the same dye matrix as the metal complex dye and capable of forming a metal complex;
And a ratio of the compound to the metal complex dye is 0.1% by mass or more and 10% by mass or less.   A color filter having a support and a colored region provided on the support and formed using the colored curable composition according to any one of claims 1 to 9. Applying the colored curable composition according to any one of claims 1 to 9 on a support and forming a colored layer;
Exposing the formed colored layer in a pattern and developing to form a colored region; and
The manufacturing method of the color filter which has this.   The liquid crystal display element provided with the color filter of Claim 10 or Claim 11.