WO2021166857A1

WO2021166857A1 - Coloring composition, film, color filter, solid-state imaging element and image display device

Info

Publication number: WO2021166857A1
Application number: PCT/JP2021/005564
Authority: WO
Inventors: 宏明出井; 和也尾田; 拓貴本橋; 全弘森; 翔一中村
Original assignee: 富士フイルム株式会社
Priority date: 2020-02-20
Filing date: 2021-02-15
Publication date: 2021-08-26
Also published as: JP7429283B2; TW202138486A; KR20220127879A; JPWO2021166857A1

Abstract

Provided is a coloring composition comprising: a coloring material containing a pigment; a photopolymerization initiator; a polymerizable compound; and a resin, wherein the pigment contains a pigment DPP having a structure such that an aromatic cyclic group Ar^D1 in which an electron donating group is introduced into an aromatic ring is bonded to a diketopyrropyrrole skeleton, and wherein the photopolymerization initiator contains an oxime compound OX having an aromatic cyclic group Ar^OX1 in which an electron withdrawing group is introduced into an aromatic ring. Also provided are a film, a color filter, a solid-state imaging element, and an image display device.

Description

Coloring compositions, films, color filters, solid-state image sensors and image display devices

The present invention relates to a coloring composition containing a pigment. The present invention also relates to a film, a color filter, a solid-state image sensor, and an image display device using a coloring composition.

In recent years, with the spread of digital cameras, camera-equipped mobile phones, etc., demand for solid-state image sensors such as charge-coupled device (CCD) image sensors has increased significantly. Color filters are used as key devices for displays and optical elements. A color filter usually includes pixels of the three primary colors of red, green, and blue, and plays a role of decomposing transmitted light into the three primary colors.

The colored pixels of each color of the color filter are manufactured by using a coloring composition containing a coloring material such as a pigment. Further, in the coloring composition for forming red pixels, a diketopyrrolopyrrole pigment or the like is used as a coloring material (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2019-20343

When the present inventor diligently studied a coloring composition containing a diketopyrrolopyrrole pigment, the film formed by using the coloring composition containing the diketopyrrolopyrrole pigment was heated to a higher temperature (for example, 230 ° C. or higher). It was found that when heated, crystals derived from the diketopyrrolopyrrole pigment tend to precipitate as foreign substances in the film. Further, when the present inventor examined the coloring composition described in the examples of Patent Document 1, when the film formed by using this coloring composition was heated to a high temperature of 230 ° C. or higher, the film was formed. It was found that crystals derived from the diketopyrrolopyrrole pigment were likely to precipitate as foreign substances, and there was room for further improvement.

In recent years, there has been an increasing demand for the characteristics of films used for color filters and the like. As such required characteristics, excellent light resistance, excellent adhesion to the support, and the like are required. Further, when the present inventor examined the coloring composition described in Examples of Patent Document 1, the film formed by using this coloring composition was found to have light resistance and adhesion to a support. It turned out that there was room for further improvement.

Therefore, an object of the present invention is to provide a coloring composition, a film, a color filter, a solid-state image sensor, and an image display device which are excellent in light resistance and adhesion and can form a film in which precipitation of foreign substances is suppressed even after heat treatment. To provide.

According to the study of the present inventor, it has been found that the above object can be achieved by the coloring composition described later, and the present invention has been completed. Therefore, the present invention provides the following.
<1> A coloring composition containing a coloring material containing a pigment, a photopolymerization initiator, a polymerizable compound, and a resin.
The pigment comprises a pigment DPP having a structure ^{in which an aromatic ring group Ar D1} having an electron donating group introduced into an aromatic ring is bonded to a diketopyrrolopyrrole skeleton.
The photopolymerization initiator contains an oxime compound OX having ^{an aromatic ring group Ar OX1 in} which an electron-attracting group is introduced into the aromatic ring.
Coloring composition.
<2> The coloring composition according to <1>, wherein the electron-attracting group contained in the ^{aromatic ring group Ar OX1 is at least one selected from an acyl group and a nitro group.}
<3> The coloring composition according to <1>, wherein the electron-attracting group of the ^{aromatic ring group Ar OX1 is an acyl group.}
<4> The coloring composition according to any one of <1> to <3>, wherein the aromatic ring group Ar ^{OX1 is a group represented by the formula (OR-1);}

^{Wherein, R OX1} represents a ^{substituent, R OX2} represents an electron-withdrawing group, n represents an integer of 0 to 4, the wavy line represents a bond.
<5> The oxime compound OX has at least one group selected from the group represented by the formula (OR-11) and the group represented by the formula (OR-12), <1> to <4>. The coloring composition according to any one of the above;

In the formula, ^ROX11 is an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group. Represents a group, an arylsulfonyl group, an acyl group, an acyloxy group, an amino group, a phosphinoyl group, a carbamoyl group or a sulfamoyl group.
^ROX12 contains an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group and an aryl. Represents a sulfonyl group, an acyloxy group or an amino group
The wavy line represents the bond.
<6> The oxime compound OX is at least one selected from the compound represented by the formula (OX1) and the compound represented by the formula (OX2), and is any one of <1> to <5>. The colored composition described;

In the formula, ^RX1 is an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group. Represents a group, an arylsulfonyl group, an acyl group, an acyloxy group, an amino group, a phosphinoyl group, a carbamoyl group or a sulfamoyl group.
^RX2 is an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group and an aryl. Represents a sulfonyl group, an acyloxy group or an amino group
R ^X3 ~ ^{R X14} represents a hydrogen atom or a substituent independently;
Provided ^that at least one of R X10 ^{~ R X14} is an electron withdrawing group.
<7> The electron donating group contained in the aromatic ring group Ar ^D1 is at least one selected from a hydroxy group, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group and an amino group. <1 > The coloring composition according to any one of <6>.
<8> The coloring composition according to any one of <1> to <7>, wherein the aromatic ring group Ar ^{D1 is a group represented by the formula (AR-1);}

Wherein, R ^D1 represents a substituent, R ^D2 represents an electron donating group, n represents an integer of 0 to 4, the wavy line represents a bond to diketopyrrolopyrrole backbone.
<9> The coloring composition according to any one of <1> to <8>, wherein the pigment DPP is a compound represented by the formula (DPP1);

In the formula, R ^D11 and R ^D12 each independently represent a substituent and represent a substituent.
R ^D21 and R ^D22 each independently represent an electron donating group.
n11 and n12 each independently represent an integer of 0 to 4.
<10> The coloring composition according to any one of <1> to <9>, wherein the pigment DPP contains at least one selected from Color Index Pigment Red 264 and Color Index Pigment Red 272.
<11> The coloring composition according to any one of <1> to <10>, wherein the content of the coloring material in the total solid content of the coloring composition is 50% by mass or more.
<12> The coloring composition according to any one of <1> to <11>, which is used for a solid-state image sensor.
<13> The coloring composition according to any one of <1> to <12>, which is used for a color filter.
<14> A film obtained by using the coloring composition according to any one of <1> to <13>.
<15> A color filter having the film according to <14>.
<16> A solid-state image sensor having the film according to <14>.
<17> An image display device having the film according to <14>.

According to the present invention, there are provided a coloring composition, a film, a color filter, a solid-state image sensor, and an image display device capable of forming a film having excellent light resistance and adhesion and suppressing precipitation of foreign substances even after heat treatment. be able to.

Hereinafter, the contents of the present invention will be described in detail.
In the present specification, "-" is used in the sense that the numerical values described before and after it are included as the lower limit value and the upper limit value.
In the notation of a group (atomic group) in the present specification, the notation not describing substitution and non-substitution also includes a group having a substituent (atomic group) as well as a group having no substituent (atomic group). For example, the "alkyl group" includes not only an alkyl group having no substituent (unsubstituted alkyl group) but also an alkyl group having a substituent (substituted alkyl group).
In the present specification, "exposure" includes not only exposure using light but also drawing using particle beams such as an electron beam and an ion beam, unless otherwise specified. Examples of the light used for exposure include the emission line spectrum of a mercury lamp, far ultraviolet rays typified by an excimer laser, extreme ultraviolet rays (EUV light), X-rays, active rays such as electron beams, or radiation.
As used herein, "(meth) acrylate" represents both acrylate and methacrylate, or either, and "(meth) acrylic" represents both acrylic and methacrylic, or either. ) Acryloyl "represents both acryloyl and / or methacryloyl.
In the present specification, Me in the structural formula represents a methyl group, Et represents an ethyl group, Bu represents a butyl group, and Ph represents a phenyl group.
In the present specification, the weight average molecular weight and the number average molecular weight are polystyrene-equivalent values measured by a GPC (gel permeation chromatography) method.
In the present specification, the total solid content means the total mass of all the components of the composition excluding the solvent.
As used herein, the term pigment means a compound that is difficult to dissolve in a solvent.
In the present specification, the term "process" is included in this term not only as an independent process but also as long as the desired action of the process is achieved even if it cannot be clearly distinguished from other processes. ..

<Coloring composition>
The coloring composition of the present invention
A coloring composition containing a coloring material containing a pigment, a photopolymerization initiator, a polymerizable compound, and a resin.
The pigment comprises a pigment DPP having a structure ^{in which an aromatic ring group Ar D1} having an electron donating group introduced into an aromatic ring is bonded to a diketopyrrolopyrrole skeleton.
The photopolymerization initiator is characterized by containing an oxime compound OX having ^{an aromatic ring group Ar OX1 in} which an electron-attracting group is introduced into the aromatic ring.

According to the coloring composition of the present invention, it is possible to form a film having excellent light resistance and adhesion and suppressing the precipitation of foreign substances even after heat treatment. It is presumed that the reason why such an effect is obtained is as follows. In the coloring composition of the present invention, the pigment DPP described above has an electron donating group, and the oxime compound OX used as a photopolymerization initiator has an electron attracting group. , It is presumed that the pigment DPP and the oxime compound OX are present in close proximity to each other. Therefore, it is presumed that the curing reaction of the polymerizable compound proceeds in the vicinity of the pigment DPP due to light irradiation during exposure. Therefore, it is presumed that a film having excellent adhesion to the support could be formed. Further, the diketopyrrolopyrrole pigment has high crystallinity and tends to agglomerate by heating. However, according to the coloring composition of the present invention, the polymerizable compound in the vicinity of the pigment DPP is firmly formed by light irradiation during exposure. It is presumed that the film can be cured, and as a result, even if the obtained film is heat-treated, aggregation of the diketopyrrolopyrrole pigment and the like can be suppressed, and it is presumed that a film in which the precipitation of foreign substances is suppressed can be formed. Further, the above-mentioned oxime compound OX used as a photopolymerization initiator in the coloring composition of the present invention has an aromatic ring group Ar ^OX1 in which an electron-attracting group is introduced into the aromatic ring, and this fragrance. It is presumed that the site of the group ring group Ar ^OX1 acts as an ultraviolet absorber, and as a result, a film having excellent light resistance can be formed.

Further, since the pigment DPP used in the coloring composition of the present invention has a higher red color value than the conventional red pigment, it is possible to form a cured film having desired spectral characteristics even if it is a thin film. Since the pigment DPP has ^{a structure in which the aromatic ring group Ar D1} is bonded to the diketopyrrolopyrrole skeleton, the HOMO (Highest Occupied Molecular Orbital) -LUMO (Lowest Unoccuped Molecular Orbital) transition is increased and the transition moment is increased. As a result, the molar extinction coefficient ε in the red wavelength region (for example, 450 to 600 nm) of the pigment DPP increased, so that it is presumed that the red color value is high. Further, since the pigment DPP has a higher red color value than the conventional red pigment, the desired spectroscopy can be performed with a blending amount smaller than the blending amount required to achieve the same spectral characteristics as the conventional red pigment. Since it can be achieved, it is possible to increase the blending amount of components other than pigments, and the degree of freedom in formulation design is high.

The coloring composition of the present invention can be preferably used as a coloring composition for a solid-state image sensor. Moreover, the coloring composition of the present invention can be preferably used as a coloring composition for a color filter. Specifically, it can be preferably used as a coloring composition for forming pixels of a color filter, and more preferably as a coloring composition for forming red pixels of a color filter. Further, the coloring composition of the present invention can be preferably used as a coloring composition for forming pixels of a color filter used in a solid-state image sensor.

Hereinafter, each component used in the coloring composition of the present invention will be described.

<< Color material >>
The coloring composition of the present invention contains a coloring material containing a pigment. The content of the pigment in the coloring material is preferably 50% by mass or more, more preferably 70% by mass or more, further preferably 80% by mass or more, and preferably 90% by mass or more. Especially preferable. Further, the coloring material may be only a pigment.

^{As the above pigment, those containing a pigment DPP having a structure in which an aromatic ring group Ar D1} having an electron donating group introduced into an aromatic ring bonded to a diketopyrrolopyrrole skeleton (hereinafter, also referred to as pigment DPP) are used. Be done. The pigment DPP is a diketopyrrolopyrrole pigment. In addition, in this specification, an electron donating group is an atomic group which donates an electron to a substituted atomic group by an inductive effect or a resonance effect in the organic electron theory. Examples of the electron donating group include those having a negative value as the substituent constant (σp +) of the Hammett equation. The substituent constant (σp +) of the Hammett equation is described in the Graduate School Lecture Organic Chemistry I.D. Molecular structure and reaction ・ Organometallic chemistry It can be quoted from page 175 of the first edition. The electron donating group is preferably a group having a Hammett-type substituent constant (σp +) of −0.01 or less, more preferably a group of −0.15 or less, and a group of −0.3 or less. Is more preferable.

Examples of the electron-donating group of the aromatic ring group Ar ^D1 in the pigment DPP include a hydroxy group, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group and an amino group.

The number of carbon atoms of the alkyl group, the alkoxy group and the alkylthio group is preferably 1 to 10, and more preferably 1 to 5. These groups may be linear, branched or cyclic, preferably linear or branched.
The aryl group and the aryloxy group preferably have 6 to 20 carbon atoms, more preferably 6 to 10 carbon atoms.
Examples of the amino group include a group represented by ^{−NRa 1} Ra ^2. Ra ¹ and Ra ² independently represent a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, respectively. Ra ¹ and Ra ² may be combined to form a ring. The ^{number of carbon atoms of the alkyl group represented by Ra 1} and Ra ² is preferably 1 to 30, more preferably 1 to 15, and even more preferably 1 to 8. The alkyl group may be linear, branched or cyclic, preferably linear or branched, more preferably linear. The ^{aryl group represented by Ra 1} and Ra ² preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 12 carbon atoms. The ^{heterocyclic group represented by Ra 1} and Ra ² may be a monocyclic ring or a condensed ring. The heterocyclic group is preferably a single ring or a condensed ring having 2 to 4 condensation numbers. The number of heteroatoms constituting the ring of the heterocyclic group is preferably 1 to 3. The hetero atom constituting the ring of the heterocyclic group is preferably a nitrogen atom, an oxygen atom or a sulfur atom. The number of carbon atoms constituting the ring of the heterocyclic group is preferably 3 to 30, more preferably 3 to 18, and even more preferably 3 to 12.

As the electron donating group, an alkyl group, an alkoxy group, an aryl group and an amino group are preferable, and an alkyl group, an alkoxy group and an aryl group are more preferable, and an alkyl group is more preferable because a film having spectral characteristics suitable for red color can be easily obtained. And aryl groups are more preferred, and alkyl groups are particularly preferred.

The aromatic ring group Ar ^D1 is preferably a group represented by the formula (AR-1).

Wherein, R ^D1 represents a substituent, R ^D2 represents an electron donating group, n represents an integer of 0 to 4, the wavy line represents a bond to diketopyrrolopyrrole backbone.

In the formula (AR-1), ^{examples of the substituent represented by R D1} include a group selected from the group of substituent T described later and the above-mentioned electron donating group, and the substituent is preferably an electron donating group. When n is 2 or more, n R ^D1s may be the same or different from each other.

In the formula (AR-1), ^{examples of the electron-donating group represented by R D2} include the above-mentioned groups, and the preferred range is also the same.

In the formula (AR-1), n represents an integer of 0 to 4, preferably an integer of 0 to 3, more preferably an integer of 0 to 2, and even more preferably 0 or 1. ..

In formula (AR-1), the wavy line represents a bond with the diketopyrrolopyrrole skeleton. The diketopyrrolopyrrole skeleton means the following structure. The wavy line represents a bond with a substituent such as a group represented by the formula (AR-1). Examples of the substituent other than the group represented by the formula (AR-1) include an aryl group and the like. The aryl group may have a substituent. Examples of the substituent include a group selected from the group of the substituent T described later.

The pigment DPP is preferably a compound represented by the formula (DPP1), and more preferably a compound represented by the formula (DPP2) because the effect of the present invention can be obtained more remarkably.

In the above formula, R ^D11 and R ^D12 independently represent substituents, respectively.
R ^D21 and R ^D22 each independently represent an electron donating group.
n11 and n12 each independently represent an integer of 0 to 4.

^{Examples of the} substituent represented by R D11 and R ^D12 include a group selected from the group of substituent T described later and the above-mentioned electron donating group, and are preferably electron donating groups. If n11 is 2 or more, n11 amino ^{R D11} may be the same or different, respectively. When n12 is 2 or more, n12 R ^D12s may be the same or different from each other.

^{Examples of the electron donating group represented by RD21} and ^RD22 include the above-mentioned groups, and the preferred range is also the same.

n11 and n12 each independently represent an integer of 0 to 4, preferably an integer of 0 to 3, more preferably an integer of 0 to 2, further preferably 0 or 1, and 0. Is particularly preferable.

(Substituent T)
Substituents T include halogen atom, cyano group, nitro group, alkyl group, alkenyl group, aryl group, heterocyclic group, -ORt ¹ , -CORt ¹ , -COORt ¹ , -OCORt ¹ , -NRt ¹ Rt ² , -NRt ³ CORT ¹ , -CONRT ¹ Rt ² , -NRt ³ CONRT ¹ Rt ² , -NRt ³ COORt ¹ , -SRt ¹ , -SO ₂ Rt ¹ , -SO ₂ ORt ¹ , -NRt ³ SO ₂ Rt ¹ or -SO ₂ NRt ¹ Rt ² can be mentioned. Rt ¹ to Rt ³ independently represent a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, respectively. Rt ¹ and Rt ² may be combined to form a ring.

Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom.
The number of carbon atoms of the alkyl group is preferably 1 to 30, more preferably 1 to 15, and even more preferably 1 to 8. The alkyl group may be linear, branched or cyclic, but linear or branched is preferable, and linear is more preferable.
The alkenyl group preferably has 2 to 30 carbon atoms, more preferably 2 to 15 carbon atoms, and even more preferably 2 to 8 carbon atoms. The alkenyl group may be linear, branched or cyclic, but linear or branched is preferable, and linear is more preferable.
The aryl group preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 12 carbon atoms.
The heterocyclic group may be a monocyclic ring or a condensed ring. The heterocyclic group is preferably a single ring or a condensed ring having 2 to 4 condensation numbers. The number of heteroatoms constituting the ring of the heterocyclic group is preferably 1 to 3. The hetero atom constituting the ring of the heterocyclic group is preferably a nitrogen atom, an oxygen atom or a sulfur atom. The number of carbon atoms constituting the ring of the heterocyclic group is preferably 3 to 30, more preferably 3 to 18, and even more preferably 3 to 12.
The alkyl group, aryl group and heterocyclic group may have a substituent or may be unsubstituted. Examples of the substituent include a group selected from the above-mentioned group of substituent T.

Specific examples of the pigment DPP include compounds having the following structures. The compound having the structure represented by the formula (R1) is Color Index (CI) Pigment Red 272, and the compound having the structure represented by the formula (R10) is C.I. I. Pigment Red 264. Pigment DPP is C.I. I. Pigment Red 264 and C.I. I. It preferably contains at least one selected from Pigment Red 272, C.I. I. More preferably, it contains Pigment Red 272.

The coloring material used in the coloring composition of the present invention can further contain a coloring material other than the pigment DPP described above (hereinafter, also referred to as another coloring material). The other coloring material may be a pigment or a dye. Pigments and dyes may be used in combination. The other coloring material preferably contains a pigment. Further, the pigment may be an organic pigment or an inorganic pigment. Further, as the pigment, an inorganic pigment or a material in which a part of the organic-inorganic pigment is replaced with an organic chromophore can also be used. Hue design can be facilitated by replacing inorganic pigments and organic-inorganic pigments with organic chromophores.

The coloring composition of the present invention preferably contains a yellow color material as another color material, and more preferably contains a yellow pigment. According to this aspect, it is easy to form a film having spectral characteristics suitable for red pixels. Further, when a yellow pigment is used as another coloring material, the storage stability of the coloring composition can be improved.

Examples of the yellow colorant include quinophthalone compounds, isoindolin compounds, azo compounds, azomethine compounds, benzimidazolone compounds, pteridine compounds and quinoxalin compounds, and quinophthalone compounds, isoindolin compounds, azo compounds, azomethine compounds, and pteridine compounds. Is preferable, isoindolin compounds and azo compounds are more preferable, and isoindolin compounds are particularly preferable because it is easy to form a film having spectral characteristics more suitable for red color.

As a yellow color material, C.I. I. Pigment Yellow 1,2,3,4,5,6,10,11,12,13,14,15,16,17,18,20,24,31,32,34,35,35: 1,36, 36: 1,37,37: 1,40,42,43,53,55,60,61,62,63,65,73,74,77,81,83,86,93,94,95,97, 98,100,101,104,106,108,109,110,113,114,115,116,117,118,119,120,123,125,126,127,128,129,137,138,139, 147,148,150,151,152,153,154,155,156,161,162,164,166,167,168,169,170,171,172,173,174,175,176,177,179, 180,181,182,185,187,188,193,194,199,213,214,215,228,231,232 (methine type), 233 (quinoline type), 234 (aminoketone type), 235 (aminoketone type) ), 236 (aminoketone type) and the like (above, yellow pigment).

Further, as the yellow color material, the compounds described in JP-A-2017-201003, the compounds described in JP-A-2017-197719, and paragraph numbers 0011 to 0062 and 0137-0276 of JP-A-2017-171912 are described. , Compounds described in paragraphs 0010 to 0062, 0138 to 0295 of JP-A-2017-171913, compounds described in paragraphs 0011 to 0062, 0139-0190 of JP-A-2017-171914, JP-A-2017. The compounds described in paragraphs 0010 to 0065 and 0142 to 0222 of JP-A-171915, the quinophthalone compounds described in paragraphs 0011 to 0034 of JP2013-054339, paragraph numbers 0013 to JP-A-2014-0226228. The quinophthalone compound described in 0058, the isoindolin compound described in JP-A-2018-062644, the quinophthalone compound described in JP-A-218-203798, the quinophthalone compound described in JP-A-2018-062578, Patent No. 6432077. The quinophthalone compound described in Japanese Patent Application Laid-Open No. 6432076, the quinophthalone compound described in JP-A-2018-155881, the quinophthalone compound described in JP-A-2018-11175, the quinophthalone compound described in JP-A-2018-1040835 The quinophthalone compound described in JP-A-2017-197640, the quinophthalone compound described in JP-A-2016-145282, the quinophthalone compound described in JP-A-2014-0855565, the quinophthalone compound described in JP-A-2014-085565, JP-A-2014. The quinophthalone compound described in JP-A-201139, the quinophthalone compound described in JP2013-209614, the quinophthalone compound described in JP2013-209435, the quinophthalone compound described in JP2013-181015, and the present invention. The quinophthalone compound described in JP2013-061622, the quinophthalone compound described in JP2013-054339, the quinophthalone compound described in JP2013-032486, and the quinophthalone compound described in JP2012-226110. , A quinophthalone compound described in JP-A-2008-074987, a quinophthalone compound described in JP-A-2008-081565, a quinophthalone compound described in JP-A-2008-074986, JP-A-2008- The quinophthalone compound described in JP-A-074985, the quinophthalone compound described in JP-A-2008-050420, the quinophthalone compound described in JP-A-2008-031281, the quinophthalone compound described in JP-A-48-032765, and JP-A. The quinophthalone compound described in JP-A-2019-008014, the compound represented by the formula (QP1), the compound represented by the formula (QP2), the compound described in Korean Publication No. 10-2014-0034963, JP-A-2017 -The compound described in Japanese Patent Application Laid-Open No. 095706, the compound described in Taiwan Patent Application Publication No. 201920495, and the compound described in Japanese Patent Application Laid-Open No. 6607427 can also be used. In addition, multimers of these compounds are also preferably used from the viewpoint of improving the color value.

In the formula (QP1), X ¹ to X ¹⁶ independently represent a hydrogen atom or a halogen atom, and Z ¹ represents an alkylene group having 1 to 3 carbon atoms. Specific examples of the compound represented by the formula (QP1) include the compounds described in paragraph No. 0016 of Japanese Patent No. 6443711.

Wherein ^{^{(QP2), Y 1 ~ Y}} 3 represents a halogen atom independently. n and m represent integers of 0 to 6, and p represents an integer of 0 to 5. (N + m) is 1 or more. Specific examples of the compound represented by the formula (QP2) include the compounds described in paragraphs 0047 to 0048 of Japanese Patent No. 6432077.

As the other color material, a red color material other than the above pigment DPP (hereinafter, also referred to as another red color material) can be used. The other red color material is preferably a pigment. Examples of other red colorants include diketopyrrolopyrrole compounds, anthraquinone compounds, azo compounds, naphthol compounds, azomethine compounds, xanthene compounds, quinacridone compounds, perylene compounds, thioindigo compounds and the like, and diketopyrrolopyrrole compounds and anthraquinone compounds. , An azo compound is preferable, and a diketopyrrolopyrrole compound is more preferable because it can form red pixels having higher color separation performance. Specific examples of other red color materials include C.I. I. Pigment Red 1,2,3,4,5,6,7,9,10,14,17,22,23,31,38,41,48: 1,48: 2,48: 3,48: 4, 49,49: 1,49: 2,52: 1,52: 2,53: 1,57: 1,60: 1,63: 1,66,67,81: 1,81: 2,81: 3, 83,88,90,105,112,119,122,123,144,146,149,150,155,166,168,169,170,171,172,175,176,177,178,179,184 185,187,188,190,200,202,206,207,208,209,210,216,220,224,226,242,246,254,255,269,270,279,291,294 (xanthene system) , Organo Ultramarine, Bruish Red), 295 (monoazo type), 296 (diazo type), 297 (aminoketone type) and other red pigments. Other red color materials can form red pixels with higher color separation performance, and therefore, C.I. I. Pigment Red 254 is preferred.

As other color materials, chromatic color materials such as orange color material, green color material, purple color material, and blue color material can also be used. Specific examples of these include those shown below.

C. I. Pigment Orange 2,5,13,16,17: 1,31,34,36,38,43,46,48,49,51,52,55,59,60,61,62,64,71,73, etc. (The above is orange pigment),
C. I. Pigment Green 7,10,36,37,58,59,62,63,64 (phthalocyanine type), 65 (phthalocyanine type), 66 (phthalocyanine type), etc. (above, green pigment),
C. I. Pigment Violet 1,19,23,27,32,37,42,60 (triarylmethane type), 61 (xanthene type), etc. (above, purple pigment),
C. I. Pigment Blue 1,2,15,15: 1,15: 2,15: 3,15: 4,15: 6,16,22,29,60,64,66,79,80,87 (monoazo system), 88 (methine-based) and the like (above, blue pigment).

Further, as a green color material, a halogenated zinc phthalocyanine having an average number of halogen atoms in one molecule of 10 to 14, a bromine atom number of 8 to 12, and a chlorine atom number of 2 to 5 on average. Pigments can also be used. Specific examples include the compounds described in WO 2015/118720. Further, as a green color material, the compound described in Chinese Patent Application No. 1069009027, the phthalocyanine compound having a phosphate ester described in International Publication No. 2012/10395 as a ligand, and Japanese Patent Application Laid-Open No. 2019-008014. , The phthalocyanine compound described in JP-A-2018-180023, the compound described in JP-A-2019-038958, and the like can also be used.

Further, as the blue color material, an aluminum phthalocyanine compound having a phosphorus atom can also be used. Specific examples include the compounds described in paragraphs 0022 to 0030 of JP2012-247591A and paragraphs 0047 of JP2011-157478A.

Dyes can also be used as other coloring materials. The dye is not particularly limited, and known dyes can be used. For example, pyrazole azo compound, anilino azo compound, triarylmethane compound, anthraquinone compound, anthrapyridone compound, benzylidene compound, oxonol compound, pyrazorotriazole azo compound, pyridone azo compound, cyanine compound, phenothiazine compound, pyropyrazole azomethine compound, xanthene compound, Examples thereof include phthalocyanine compounds, benzopyran compounds, indigo compounds and pyromethene compounds. Further, the thiazole compound described in JP2012-158649A, the azo compound described in JP2011-184493, and the azo compound described in JP2011-145540 can also be used. Further, as the dye, a dye multimer can also be used. The dye multimer has two or more dye structures in one molecule, and preferably has three or more dye structures. The upper limit is not particularly limited, but may be 100 or less. The plurality of dye structures contained in one molecule may have the same dye structure or different dye structures. The weight average molecular weight (Mw) of the dye multimer is preferably 2000 to 50,000. The lower limit is more preferably 3000 or more, and even more preferably 6000 or more. The upper limit is more preferably 30,000 or less, and even more preferably 20,000 or less. Dye multimers are available from JP-A-2011-213925, JP-A-2013-041097, JP-A-2015-028144, JP-A-2015-030742, JP-A-2016-102191, International Publication No. 2016 / Compounds described in 031442 and the like can also be used.

The content of the coloring material in the total solid content of the coloring composition is preferably 20% by mass or more, more preferably 30% by mass or more, further preferably 40% by mass or more, and 45% by mass. % Or more is even more preferable, and 50% by mass or more is particularly preferable. The upper limit of the content of the coloring material in the total solid content of the coloring composition is preferably 80% by mass or less, more preferably 70% by mass or less, and further preferably 60% by mass or less. preferable.
The content of the pigment in the total solid content of the coloring composition is preferably 20% by mass or more, more preferably 30% by mass or more, further preferably 40% by mass or more, and 45% by mass. It is even more preferably mass% or more, and particularly preferably 50 mass% or more. The upper limit of the pigment content in the total solid content of the coloring composition is preferably 80% by mass or less, more preferably 70% by mass or less, and further preferably 60% by mass or less. ..

The content of the pigment DPP in the total solid content of the coloring composition is preferably 5% by mass or more, more preferably 10% by mass or more, further preferably 15% by mass or more, and 20% by mass. % Or more is even more preferable, and 25% by mass or more is particularly preferable. The upper limit of the content of the pigment DPP in the total solid content of the coloring composition is preferably 70% by mass or less, more preferably 60% by mass or less, and further preferably 55% by mass or less. preferable.

The content of the pigment DPP in the total mass of the coloring material contained in the coloring composition is preferably 20 to 100% by mass, more preferably 30 to 95% by mass, and 40 to 90% by mass. Is even more preferable.

When the coloring material contained in the coloring composition contains a yellow coloring material, the content of the yellow coloring material is preferably 5 to 100 parts by mass with respect to 100 parts by mass of the pigment DPP, and is preferably 10 to 60 parts by mass. It is more preferably 15 to 40 parts by mass.

When the coloring material contained in the coloring composition contains a red coloring material other than the pigment DPP, the content of the red coloring material other than the pigment DPP may be 5 to 100 parts by mass with respect to 100 parts by mass of the pigment DPP. It is preferably 10 to 60 parts by mass, more preferably 15 to 40 parts by mass.

<< Photoinitiator >>
The coloring composition of the present invention contains a photopolymerization initiator. ^{As the photopolymerization initiator, one containing an oxime compound OX having an aromatic ring group Ar OX1 in} which an electron-attracting group is introduced into an aromatic ring (hereinafter, also referred to as an oxime compound OX) is used. In the oxime compound OX, the aromatic ring group Ar ^OX1 is preferably bonded to the site containing the oxime structure of the oxime compound OX via the aromatic ring to which the electron-attracting group is bonded. That is, the electron-attracting group of the aromatic ring group Ar ^OX1 is bonded to the site containing the oxime structure of the oxime compound OX via the aromatic ring electron-pulled by the electron-attracting group. preferable. Specifically, it is preferable that ^{the aromatic ring side of the aromatic ring group Ar OX1} is the bond side with the site containing the oxime structure of the oxime compound OX. In the present specification, the electron-withdrawing group is an atomic group that attracts electrons from the substituted atomic group by an inductive effect or a resonance effect in the organic electron theory. Examples of the electron-attracting group include those having a positive value as the substituent constant (σp−) of the Hammett equation. The substituent constant (σp−) of the Hammett equation is described in the Graduate School Lecture Organic Chemistry I.D. Molecular structure and reaction ・ Organometallic chemistry It can be quoted from page 175 of the first edition. The electron-attracting group is preferably a group having a Hammett-type substituent constant (σp−) of 0.01 or more, more preferably 0.1 or more, and a group of 0.3 or more. It is more preferable to have.

In the oxime compound OX, the ^{electron-attracting group of the aromatic ring group Ar OX1} includes an acyl group, a nitro group, a trifluoromethyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group, an arylsulfonyl group and a cyano. Examples thereof include an acyl group and a nitro group, and an acyl group is more preferable, and a benzoyl group is further preferable, because it is easy to form a film having more excellent light resistance. The benzoyl group may have a substituent. Examples of the substituent include a group selected from the above-mentioned group of substituent T, which includes a halogen atom, a cyano group, a nitro group, a hydroxy group, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group and a complex. It is preferably a ring oxy group, an alkenyl group, an alkyl sulfanyl group, an aryl sulfanyl group, an acyl group or an amino group, preferably an alkyl group, an alkoxy group, an aryl group, an aryl oxy group, a heterocyclic oxy group, an alkyl sulfanyl group or an aryl sulfanyl. It is more preferably a group or an amino group, and even more preferably an alkoxy group, an alkylsulfanyl group or an amino group. Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. Alkyl group, alkoxy group, aryl group, aryloxy group, heterocyclic group, heterocyclic oxy group, alkenyl group, alkylsulfanyl group, arylsulfanyl group, acyl group and amino group are as these groups represented ^{by ROX11 described later.} The groups described are mentioned.

The aromatic ring group Ar ^OX1 is preferably a group represented by the formula (OR-1). According to this aspect, the above-mentioned effect of the present invention is exhibited more remarkably.

^{Wherein, R OX1} represents a ^{substituent, R OX2} represents an electron-withdrawing group, n represents an integer of 0 to 4, the wavy line represents a bond.

In the formula (OR-1), ^examples of the substituent represented by ROX1 include a group selected from the above-mentioned group of substituents T and the above-mentioned electron-attracting group, and the above-mentioned electron-attracting group is preferable. .. When n is 2 or more, n ^ROX1s may be the same or different from each other.

In the formula (OR-1), ^{examples of the electron-attracting group represented by ROX2 include} the above-mentioned groups, and the preferred range is also the same.

In the formula (OR-1), n represents an integer of 0 to 4, preferably an integer of 0 to 3, more preferably an integer of 0 to 2, and even more preferably 0 or 1. , 0 is particularly preferable.

In equation (OR-1), the wavy line represents the bond. At the position of the wavy line in the formula (OR-1), it combines with other atomic groups constituting the oxime compound OX to form the oxime compound OX.

The oxime compound OX preferably has at least one group selected from the group represented by the formula (OR-11) and the group represented by the formula (OR-12), and is represented by the formula (OR-12). It is more preferable to have a group to be used.

In the formula, ^ROX11 is an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group. Represents a group, an arylsulfonyl group, an acyl group, an acyloxy group, an amino group, a phosphinoyl group, a carbamoyl group or a sulfamoyl group.
^ROX12 contains an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group and an aryl. Represents a sulfonyl group, an acyloxy group or an amino group
The wavy line represents the bond.

^ROX11 is preferably an alkyl group, an alkoxy group, an aryl group, an aryloxy group or a heterocyclic group, more preferably an alkyl group, an aryl group or a heterocyclic group, and further preferably an alkyl group. .. Further, ^ROX12 is preferably an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group or an acyloxy group, and is an alkyl group, an alkenyl group, an aryl group or a heterocyclic group. More preferably, it is more preferably an alkyl group.

The above-mentioned groups represented by ^ROX11 and ^{ROX12 may further have a substituent.} Further examples of the substituent include a group selected from the above-mentioned group of substituent T.

The ^{alkyl groups represented by ROX11} and ^ROX12 have preferably 1 to 18 carbon atoms, more preferably 1 to 15 carbon atoms, and even more preferably 1 to 8 carbon atoms. The alkyl group may be linear, branched or cyclic. When the alkyl group has 2 or more carbon atoms, an ether bond may be contained between the carbon atoms. ^{Specific examples of the alkyl groups represented by ROX11} and ^ROX12 include methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, dodecyl group and octadecyl group. , Isopropyl group, isobutyl group, isopentyl group, sec-butyl group, tert-butyl group, sec-pentyl group, tert-pentyl group, tert-octyl group, neopentyl group, cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group. , Adamantyl group, norbornyl group, boronyl group, 4-decylcyclohexyl group and the like. Specific examples of alkyl groups containing ether linkages between carbon _{_{_{_{atoms, -CH 2 -O-CH 3,}}}} -CH 2 -CH 2 -O-CH 2 -CH 3, -CH 2 -CH 2 -CH _2- O-CH ₂ _{-CH 3} ,-(CH _2- CH _2- O) _n- CH ₃ (where n is 1 to 8),-(CH _2- CH _2- CH _2- O) _m -CH ₃ (wherein m is 5 _{_{_{1), - CH 2 -CH (}}} CH 3) -O-CH 2 -CH 3 -, - CH 2 -CH- (OCH 3) group shown in ₂ and below Can be mentioned.

^{The carbon number of the alkenyl group represented by ROX11} and ^ROX12 is preferably 2 to 18, more preferably 2 to 15, further preferably 2 to 8. The alkenyl group may be linear, branched or cyclic. Specific examples of the alkenyl group include vinyl group, 1-propenyl group, allyl group, 2-butenyl group, 3-butenyl group, isopropenyl group, isobutenyl group, 1-pentenyl group, 2-pentenyl group and 3-pentenyl group. , 4-Pentenyl group, 1-hexenyl group, 2-hexenyl group, 3-hexenyl group, 4-hexenyl group, 5-hexenyl group, cyclopentenyl group, cyclohexenyl group, 1,3-butadienyl group, cyclohexadienyl group , Cyclopentadienyl group and the like.

The ^{alkoxy group represented by ROX11} and ^ROX12 preferably has 1 to 18 carbon atoms, more preferably 1 to 15 carbon atoms, and even more preferably 1 to 8 carbon atoms. The alkoxy group may be linear, branched or cyclic. When the alkoxy group has two or more carbon atoms, an ether bond may be contained between the carbon atoms. ^{Specific examples of the alkoxy groups represented by ROX11} and ^ROX12 include methyloxy group, ethyloxy group, propyloxy group, butyloxy group, pentyloxy group, hexyloxy group, heptyloxy group, octyloxy group, nonyloxy group and decyloxy group. , Dodecyloxy group, octadecyloxy group, isopropyloxy group, isobutyloxy group, isopentyloxy group, sec-butyloxy group, tert-butyloxy group, sec-pentyloxy group, tert-pentyloxy group, tert-octyloxy group, Examples thereof include neopentyloxy group, cyclopropyloxy group, cyclobutyloxy group, cyclopentyloxy group, cyclohexyloxy group, adamantyloxy group, norbornyloxy group, boronyloxy group, 4-decylcyclohexyloxy group and the like. Specific examples of the alkoxy group having an ether bond between carbon _{_{_{_{atoms, -O-CH 2 -O-CH}}}} 3, -O-CH 2 -CH 2 -O-CH 2 -CH 3, -O-CH _{_{_{_{2 -CH 2 -CH 2 -O-CH}}}} 2 -CH 3, ( a where n is from _{1 8) -O- (CH 2 -CH} 2 -O) n -CH 3, - O- (CH 2 -CH ₂ is -CH ₂ _-O) m -CH ₃ (wherein m is 5 _{_{1), - O-CH 2}} -CH (CH 3) -O-CH 2 -CH 3 -, - O-CH _2- CH- (OCH ₃ ) ₂ and the groups shown below can be mentioned.

The ^{aryl group represented by ROX11} and ^ROX12 preferably has 6 to 24 carbon atoms, more preferably 6 to 12 carbon atoms. Specific examples of the aryl group include a phenyl group, a 1-naphthyl group, a 2-naphthyl group, a 1-anthrill group, a 9-anthrill group, a 2-phenanthryl group, a 3-phenanthryl group, a 9-phenanthryl group, and a 1-pyrenyl group. , 5-naphthacenyl group, 1-indenyl group, 2-azulenyl group, 1-acenaphthyl group, 2-fluorenyl group, 9-fluorenyl group, 3-perylenyl group, o-tolyl group, m-tolyl group, p-tolyl group , 2,3-xylyl group, 2,5-xylyl group, mesityl group, p-cumenyl group, p-dodecylphenyl group, p-cyclohexylphenyl group, 4-biphenyl group, o-fluorophenyl group, m-chlorophenyl group , P-bromophenyl group, p-hydroxyphenyl group, m-carboxyphenyl group, o-mercaptophenyl group, p-cyanophenyl group, m-nitrophenyl group, m-azidophenyl group and the like.

The ^{aryloxy group represented by ROX11} and ^ROX12 preferably has 6 to 24 carbon atoms, more preferably 6 to 12 carbon atoms. Specific examples of the aryloxy group include a phenoxy group, a naphthyloxy group, a 2-naphthyloxy group, a 9-anthryloxy group, a 9-phenanthryloxy group, a 1-pyrenyloxy group, and a 5-naphthacenyloxy group. Examples thereof include 1-indenyloxy group, 2-azulenyloxy group, 1-acenaphthyloxy group, 9-fluorenyloxy group and the like.

The ^{heterocyclic ring represented by ROX11} and ^ROX12 and the heterocyclic ring of the heterocyclic oxy group may be a monocyclic ring or a condensed ring. The heterocycle is preferably a single ring or a fused ring having 2 to 4 condensation numbers. The number of heteroatoms constituting the ring of the heterocycle is preferably 1 to 3. The hetero atom constituting the ring of the heterocycle is preferably a nitrogen atom, an oxygen atom or a sulfur atom. The number of carbon atoms constituting the ring of the heterocycle is preferably 3 to 30, more preferably 3 to 18, and even more preferably 3 to 12.
Specific examples of the heterocyclic group include 2-thienyl group, 2-benzothienyl group, naphtho [2,3-b] thienyl group, 3-thianthrenyl group, 2-thianthrenyl group, 2-furyl group and 2-benzofuryl group. , Pyranyl group, isobenzofuranyl group, chromenyl group, xanthenyl group, phenoxatiinyl group, 2H-pyrrolyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, pyridyl group, pyrazinyl group, pyrimidinyl group, pyridadinyl group, indridinyl group , Isoindrill group, 3H-indrill group, 2-indrill group, 3-indrill group, 1H-indazolyl group, prynyl group, 4H-quinolinyl group, isoquinolyl group, quinolyl group, phthalazinyl group, naphthyldinyl group, quinoxanilyl group, quinazolinyl group, Synnolinyl group, pteridinyl group, 4aH-carbazolyl group, 2-carbazolyl group, 3-carbazolyl group, β-carbolinyl group, phenanthridinyl group, 2-acridinyl group, perimidinyl group, phenanthrolinyl group, phenazinyl group, phenalsadinyl Group, isothiazolyl group, phenothiazinyl group, isoxazolyl group, frazayl group, 3-phenylaxazinyl group, isochromanyl group, chromanyl group, pyrrolidinyl group, pyrrolinyl group, imidazolidinyl group, imidazolinyl group, pyrazolydinyl group, pyrazolinyl group, piperidyl group, piperazinyl group. Examples thereof include an indolinyl group, an isoindolinyl group, a quinuclidinyl group, a morpholinyl group, a thioxanthril group, a 4-quinolinyl group, a 4-isoquinolyl group, a 3-phenothiazinyl group, a 2-phenoxatyynyl group and a 3-cummarinyl group. Specific examples of the heterocyclic oxy group include 2-furanyloxy group, 2-thienyloxy group, 2-indrilloxy group, 3-indrilloxy group, 2-benzofuryloxy group, 2-benzothienyloxy group, 2 -Carbazolyloxy group, 3-carbazolyloxy group, 4-carbazolyloxy group, 9-acridinyloxy group and the like can be mentioned.

The ^{alkylsulfanyl group represented by ROX11} and ^ROX12 preferably has 1 to 18 carbon atoms, more preferably 1 to 15 carbon atoms, and even more preferably 1 to 8 carbon atoms. The alkylsulfanyl group may be linear or branched. Specific examples of the alkylsulfanyl group include methylthio group, ethylthio group, propylthio group, butylthio group, pentylthio group, hexylthio group, octylthio group, decylthio group, dodecylthio group, octadecylthio group and the like.

The ^{arylsulfanyl group represented by ROX11} and ^ROX12 preferably has 6 to 18 carbon atoms. Specific examples of the arylsulfanyl group include a phenylthio group, a 1-naphthylthio group, a 2-naphthylthio group, a 9-anthrylthio group, a 9-phenanthrylthio group and the like.

The ^{alkylsulfinyl group represented by ROX11} and ^ROX12 preferably has 1 to 20 carbon atoms, more preferably 1 to 15 carbon atoms, and even more preferably 1 to 8 carbon atoms. The alkylsulfinyl group may be linear or branched. Specific examples of the alkylsulfinyl group include methylsulfinyl group, ethylsulfinyl group, propylsulfinyl group, isopropylsulfinyl group, butylsulfinyl group, hexylsulfinyl group, cyclohexylsulfinyl group, octylsulfinyl group, 2-ethylhexylsulfinyl group, and decanoysulfinyl group. Examples thereof include a group, a dodecanoylsulfinyl group, an octadecanoylsulfinyl group, a cyanomethylsulfinyl group, and a methyloxymethylsulfinyl group.

The ^{arylsulfinyl group represented by ROX11} and ^ROX12 preferably has 6 to 30 carbon atoms. Specific examples of the arylsulfinyl group include phenylsulfinyl group, 1-naphthylsulfinyl group, 2-naphthylsulfinyl group, 2-chlorophenylsulfinyl group, 2-methylphenylsulfinyl group, 2-methyloxyphenylsulfinyl group and 2-butyloxy. Phenylsulfinyl group, 3-chlorophenylsulfinyl group, 3-trifluoromethylphenylsulfinyl group, 3-cyanophenylsulfinyl group, 3-nitrophenylsulfinyl group, 4-fluorophenylsulfinyl group, 4-cyanophenylsulfinyl group, 4-methyl Examples thereof include an oxyphenylsulfinyl group, a 4-methylsulfanylphenylsulfinyl group, a 4-phenylsulfanylphenylsulfinyl group, and a 4-dimethylaminophenylsulfinyl group.

The ^{alkylsulfonyl group represented by ROX11} and ^ROX12 preferably has 1 to 20 carbon atoms, more preferably 1 to 15 carbon atoms, and even more preferably 1 to 8 carbon atoms. The alkylsulfonyl group may be linear or branched. Specific examples of the alkylsulfonyl group include a methylsulfonyl group, an ethylsulfonyl group, a propylsulfonyl group, an isopropylsulfonyl group, a butylsulfonyl group, a hexylsulfonyl group, a cyclohexylsulfonyl group, an octylsulfonyl group, a 2-ethylhexylsulfonyl group, and a decanoyylsulfonyl group. Examples thereof include a group, a dodecanoylsulfonyl group, an octadecanoylsulfonyl group, a cyanomethylsulfonyl group, and a methyloxymethylsulfonyl group.

The ^{arylsulfonyl group represented by ROX11} and ^ROX12 preferably has 6 to 30 carbon atoms. Specific examples of the arylsulfonyl group include a phenylsulfonyl group, a 1-naphthylsulfonyl group, a 2-naphthylsulfonyl group, a 2-chlorophenylsulfonyl group, a 2-methylphenylsulfonyl group, a 2-methyloxyphenylsulfonyl group, and a 2-butyloxy group. Phenylsulfonyl group, 3-chlorophenylsulfonyl group, 3-trifluoromethylphenylsulfonyl group, 3-cyanophenylsulfonyl group, 3-nitrophenylsulfonyl group, 4-fluorophenylsulfonyl group, 4-cyanophenylsulfonyl group, 4-methyl Examples thereof include an oxyphenylsulfonyl group, a 4-methylsulfanylphenylsulfonyl group, a 4-phenylsulfanylphenylsulfonyl group, and a 4-dimethylaminophenylsulfonyl group.

The ^{acyl group represented by ROX11} includes a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, and an aryl group having 6 to 18 carbon atoms in the carbonyl group. , 6-18 aryloxy groups or groups to which a heterocyclic group is bonded can be mentioned. Specific examples of the acyl group include a formyl group, an acetyl group, a propionyl group, a butyryl group, an isobutyryl group, a valeryl group, an isovaleryl group, a pivaloyl group, a lauroyl group, a myritoyl group, a palmitoyl group, a stearoyl group, a cyclopentylcarbonyl group and a cyclohexylcarbonyl group. Group, acryloyl group, methacryloyl group, crotonoyl group, isocrotonoyl group, oleoyl group, cinnamoyl group benzoyl group, methyloxycarbonyl group, ethyloxycarbonyl group, propyloxycarbonyl group, butyloxycarbonyl group, hexyloxycarbonyl group, octyloxy Carbonyl group, decyloxycarbonyl group, octadecyloxycarbonyl group, trifluoromethyloxycarbonyl group, benzoyl group, toluoil group, 1-naphthoyl group, 2-naphthoyl group, 9-anthrylcarbonyl group, phenyloxycarbonyl group, 4- Methylphenyloxycarbonyl group, 3-nitrophenyloxycarbonyl group, 4-dimethylaminophenyloxycarbonyl group, 2-methylsulfanylphenyloxycarbonyl group, 1-naphthyloxycarbonyl group, 2-naphthyloxycarbonyl group, 9- Examples thereof include an sulfyloxycarbonyl group, a 3-fluoroyl group, a 2-tenoyl group, a nicotinoyyl group, and an isonicotinoyl group.

The ^{acyloxy group represented by ROX11} and ^ROX12 preferably has 2 to 20 carbon atoms. Specific examples of the acyloxy group include an acetyloxy group, a propanoyloxy group, a butanoyloxy group, a pentanoyloxy group, a trifluoromethylcarbonyloxy group, a benzoyloxy group, a 1-naphthylcarbonyloxy group, and a 2-naphthylcarbonyloxy group. The group etc. can be mentioned.

^{Examples of the} amino group represented by ROX11 and ^ROX12 _{include -NH 2} , an alkylamino group, a dialkylamino group, an arylamino group, a diarylamino group, an alkylarylamino group, a benzylamino group, a dibenzylamino group and the like. Alkylamino groups include methylamino group, ethylamino group, propylamino group, butylamino group, pentylamino group, hexylamino group, heptylamino group, octylamino group, nonylamino group, decylamino group, dodecylamino group and octadecylamino group. Group, isopropylamino group, isobutylamino group, isopentylamino group, sec-butylamino group, tert-butylamino group, sec-pentylamino group, tert-pentylamino group, tert-octylamino group, neopentylamino group, Cyclopropylamino group, cyclobutylamino group, cyclopentylamino group, cyclohexylamino group, cycloheptylamino group, cyclooctylamino group, cyclododecylamino group, 1-adamantamino group, 2-adamantamino group and the like can be mentioned. Examples of the dialkylamino group include dimethylamino group, diethylamino group, dipropylamino group, dibutylamino group, dipentylamino group, dihexylamino group, diheptylamino group, dioctylamino group, dinonylamino group, didecylamino group and didodecylamino group. Dioctadecylamino group, diisopropylamino group, diisobutylamino group, diisopentylamino group, methylethylamino group, methylpropylamino group, methylbutylamino group, methylisobutylamino group, cyclopropylamino group, pyrrolidino group, piperidino group, Examples include the piperazino group. As the arylamino group, anilino group, 1-naphthylamino group, 2-naphthylamino group, o-toluidino group, m-toluidino group, p-toluidino group, 2-biphenylamino group, 3-biphenylamino group, 4- Examples thereof include a biphenylamino group, a 1-fluoreneamino group, a 2-fluoreneamino group, a 2-thiazoleamino group, a p-terphenylamino group and the like. Examples of the diarylamino group include a diphenylamino group, a ditrilamino group, an N-phenyl-1-naphthylamino group, an N-phenyl-2-naphthylamino group and the like. Examples of the alkylarylamino group include N-methylanilino group, N-methyl-2-pyridino group, N-ethylanilino group, N-propylanilino group, N-butylanilino group, N-isopropyl, N-pentylanilino group and N. -Ethylanilino group, N-methyl-1-naphthylamino group and the like can be mentioned.

The number of carbon atoms of the phosphinoyl groups R ^OX11 represent may have 2 to 50 preferred. Specific examples of the phosphinoyl group include a dimethylphosphinoyl group, a diethylphosphinoyl group, a dipropylphosphinoyl group, a diphenylphosphinoyl group, a dimethoxyphosphinoyl group, a diethoxyphosphinoyl group, and a dibenzoylphosphino. Examples thereof include an yl group and a bis (2,4,6-trimethylphenyl) phosphinoyl group.

The ^{carbamoyl group represented by ROX11} preferably has 2 to 30 carbon atoms. Specific examples of the carbamoyl group include N-methylcarbamoyl group, N-ethylcarbamoyl group, N-propylcarbamoyl group, N-butylcarbamoyl group, N-hexylcarbamoyl group, N-cyclohexylcarbamoyl group, N-octylcarbamoyl group, and the like. N-decylcarbamoyl group, N-octadecylcarbamoyl group, N-phenylcarbamoyl group, N-2-methylphenylcarbamoyl group, N-2-chlorophenylcarbamoyl group, N-2-isopropoxyphenylcarbamoyl group, N-2-( 2-Ethylhexyl) Phenylcarbamoyl group, N-3-chlorophenylcarbamoyl group, N-3-nitrophenylcarbamoyl group, N-3-cyanophenylcarbamoyl group, N-4-methoxyphenylcarbamoyl group, N-4-cyanophenylcarbamoyl group Group, N-4-methylsulfanylphenylcarbamoyl group, N-4-phenylsulfanylphenylcarbamoyl group, N-methyl-N-phenylcarbamoyl group, N, N-dimethylcarbamoyl group, N, N-dibutylcarbamoyl group, N, Examples thereof include an N-diphenylcarbamoyl group.

The ^{sulfamoyl group represented by ROX11} preferably has 0 to 30 carbon atoms. Specific examples of the sulfamoyl group include a sulfamoyl group, an N-alkyl sulfamoyl group, an N-aryl sulfamoyl group, an N, N-dialkyl sulfamoyl group, an N, N-diaryl sulfamoyl group, and an N-alkyl group. -N-aryl sulfamo oil group and the like can be mentioned. More specifically, N-methylsulfamoyl group, N-ethylsulfamoyl group, N-propylsulfamoyl group, N-butylsulfamoyl group, N-hexylsulfamoyl group, N-cyclohexylsul. Famoyl group, N-octyl sulfamoyl group, N-2-ethylhexyl sulfamoyl group, N-decyl sulfamoyl group, N-octadecyl sulfamoyl group, N-phenyl sulfamoyl group, N-2- Methylphenyl sulfamoyl group, N-2-chlorophenyl sulfamoyl group, N-2-methoxyphenyl sulfamoyl group, N-2-isopropoxyphenyl sulfamoyl group, N-3-chlorophenyl sulfamoyl group, N-3-nitrophenyl sulfamoyl group, N-3-cyanophenyl sulfamoyl group, N-4-methoxyphenyl sulfamoyl group, N-4-cyanophenyl sulfamoyl group, N-4-dimethylamino Phenylsulfamoyl group, N-4-methylsulfanylphenylsulfamoyl group, N-4-phenylsulfanylphenylsulfamoyl group, N-methyl-N-phenylsulfamoyl group, N, N-dimethylsulfamoyl Examples include groups, N, N-dibutylsulfamoyl groups, N, N-diphenylsulfamoyl groups and the like.

In the equation (OR-11) and the equation (OR-11), the wavy line represents the bond. At the position of the wavy line in the formula (OR-11) and the position of the wavy line in the formula (OR-12), the oxime compound OX is formed by combining with other atomic groups constituting the oxime compound OX.

The oxime compound OX is preferably at least one selected from the compound represented by the formula (OX1) and the compound represented by the formula (OX2), and the formula is because a film having better adhesion can be formed. It is more preferable that the compound is represented by (OX2).

In the formula, ^RX1 is an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group. Represents a group, an arylsulfonyl group, an acyl group, an acyloxy group, an amino group, a phosphinoyl group, a carbamoyl group or a sulfamoyl group.
^RX2 is an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group and an aryl. Represents a sulfonyl group, an acyloxy group or an amino group
R ^X3 ~ ^{R X14} represents a hydrogen atom or a substituent independently;
Provided ^that at least one of R X10 ^{~ R X14} is an electron withdrawing group.

In the above formula, ^RX1 is preferably an alkyl group, an alkoxy group, an aryl group, an aryloxy group or a heterocyclic group, more preferably an alkyl group, an aryl group or a heterocyclic group, and is an alkyl group. Is even more preferable. Further, ^RX2 is preferably an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group or an acyloxy group, and is an alkyl group, an alkenyl group, an aryl group or a heterocyclic group. More preferably, it is more preferably an alkyl group.

^{R X1} in the above formula has the same meaning as ^{R OX11} in the above-mentioned formula (OR-11) and formula (OR-12), and preferred ranges are also the same.

^{R X2} in the above formula has the same meaning as ^{R OX12} in the above-mentioned formula (OR-11) and formula (OR-12), and preferred ranges are also the same.
R ^X3 ~ ^{R X14} represents a hydrogen atom or a substituent independently.

The substituent represented by R ^X3 ~ ^{R X9,} group selected from the group of substituents T mentioned above, a group represented by the formula group and the formula represented by (OR-11) (OR- 12) Can be mentioned.

^RX3 to ^RX5 are independently hydrogen atom, halogen atom, cyano group, nitro group, alkyl group, alkenyl group, alkoxy group, aryl group, aryloxy group, heterocyclic group, heterocyclic oxy group, alkylsulfanyl. It is preferably a group, an arylsulfanyl group, an acyl group, or an amino group, more preferably a hydrogen atom, a halogen atom, a nitro group, an alkyl group, an aryl group, or a heterocyclic group, and more preferably a hydrogen atom, a nitro group, or an alkyl. It is more preferably a group or an aryl group, and particularly preferably a hydrogen atom. Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. Alkyl group, alkenyl group, alkoxy group, aryl group, aryloxy group, heterocyclic group, heterocyclic oxy group, alkylsulfanyl group, arylsulfanyl group, acyl group and amino group are as these groups represented by ^{ROX11 described above.} The groups described are mentioned. The alkyl group, alkenyl group, alkoxy group, aryl group, aryloxy group, heterocyclic group, heterocyclic oxy group, alkylsulfanyl group, arylsulfanyl group, acyl group and amino group may further have a substituent. Further examples of the substituent include a group selected from the above-mentioned group of substituent T.

^RX6 to ^RX10 are independently hydrogen atom, halogen atom, cyano group, alkyl group, alkenyl group, alkoxy group, aryl group, aryloxy group, heterocyclic group, heterocyclic oxy group, alkylsulfanyl group, aryl. Sulfanyl group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group, amino group, group represented by the above formula (OR-11) or group represented by the above formula (OR-12). Is preferable, a hydrogen atom, a halogen atom, a cyano group, an alkyl group, an aryl group, a heterocyclic group or an amino group is more preferable, and a hydrogen atom, a cyano group, an alkyl group or an aryl group is further preferable, and hydrogen is more preferable. It is even more preferably an atom, an alkyl group or an aryl group, even more preferably a hydrogen atom or an alkyl group, and particularly preferably a hydrogen atom. Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. Alkyl group, alkenyl group, alkoxy group, aryl group, aryloxy group, heterocyclic group, heterocyclic oxy group, alkylsulfanyl group, arylsulfanyl group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group and amino Examples of the group include the groups described as these groups represented by the above-mentioned ^ROX11. Alkyl group, alkenyl group, alkoxy group, aryl group, aryloxy group, heterocyclic group, heterocyclic oxy group, alkylsulfanyl group, arylsulfanyl group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group and amino The group may further have a substituent. Further examples of the substituent include a group selected from the above-mentioned group of substituent T.

The substituents R ^{X10 ~} R ^X14 represent include groups and electron withdrawing groups described above are selected from the group of substituents T mentioned above. Provided ^that at least one of R X10 ^{~ R X14} is an electron withdrawing group.
Substituents represented by R ^{X10 ~} R ^X14 is a nitro group, a halogen atom, a cyano group, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkenyl group, an alkylsulfanyl group, an aryl It is preferably a sulfanyl group, an acyl group, or an amino group. As an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkenyl group, an alkylsulfanyl group, an arylsulfanyl group, an acyl group, and an amino group, as these groups represented by ^{ROX11 described above.} The groups described are mentioned. The alkyl group, alkoxy group, aryl group, aryloxy group, heterocyclic group, heterocyclic oxy group, alkenyl group, alkylsulfanyl group, arylsulfanyl group, acyl group and amino group may further have a substituent. Further examples of the substituent include a group selected from the above-mentioned group of substituent T.

As the electron withdrawing group represented by R ^{X10 ~} R ^X14, an acyl group, a nitro group, a trifluoromethyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group, an arylsulfonyl group, and a cyano group, Acyl groups and nitro groups are preferable, and acyl groups are more preferable, and benzoyl groups are even more preferable, because it is easy to form a film having more excellent light resistance. The benzoyl group may have a substituent. Examples of the substituent include a group selected from the above-mentioned group of substituent T, which includes a halogen atom, a cyano group, a nitro group, a hydroxy group, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group and a complex. It is preferably a ring oxy group, an alkenyl group, an alkyl sulfanyl group, an aryl sulfanyl group, an acyl group or an amino group, preferably an alkyl group, an alkoxy group, an aryl group, an aryl oxy group, a heterocyclic oxy group, an alkyl sulfanyl group or an aryl sulfanyl. It is more preferably a group or an amino group, and even more preferably an alkoxy group, an alkylsulfanyl group or an amino group. Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. Alkyl group, alkoxy group, aryl group, aryloxy group, heterocyclic group, heterocyclic oxy group, alkenyl group, alkylsulfanyl group, arylsulfanyl group, acyl group and amino group are as these groups represented by ^{ROX11 described above.} The groups described are mentioned.

In the above ^{formulas, R X12} is an electron withdrawing ^group, it is preferred that ^{^{R X10, R X11, R X13}} , R X14 is a hydrogen atom.

Specific examples of the oxime compound OX include compounds having the following structure and compounds described in paragraphs 0083 to 0105 of Japanese Patent No. 4600600.

The photopolymerization initiator contained in the coloring composition of the present invention may further contain a photopolymerization initiator other than the above-mentioned oxime compound OX (hereinafter, also referred to as another photopolymerization initiator).

Other photopolymerization initiators include halogenated hydrocarbon derivatives (eg, compounds having a triazine skeleton, compounds having an oxadiazole skeleton, etc.), acylphosphine compounds, hexaarylbiimidazole, oxime compounds, organic peroxides, etc. Examples include thio compounds, ketone compounds, aromatic onium salts, α-hydroxyketone compounds, α-aminoketone compounds, etc., trihalomethyltriazine compounds, benzyldimethylketal compounds, α-hydroxyketone compounds, α-aminoketone compounds, acylphosphine compounds. , Phosphine oxide compounds, metallocene compounds, oxime compounds, triarylimidazole dimers, onium compounds, benzothiazole compounds, benzophenone compounds, acetophenone compounds, cyclopentadiene-benzene-iron complexes, halomethyloxaziazole compounds and 3-aryl substituted coumarin compounds. It is more preferable that the compound is selected from the oxime compound, the α-hydroxyketone compound, the α-aminoketone compound, and the acylphosphine compound, and the oxime compound or the α-aminoketone compound is high because of the high initiator efficiency. It is more preferably a compound. Examples of other photopolymerization initiators include the compounds described in paragraphs 0065 to 0111 of JP-A-2014-130173 and JP-A-6301489, MATERIAL STAGE 37-60p, vol. 19, No. 3, 2019 Peroxide-based Photopolymerization Initiator, International Publication No. 2018/221177, Photopolymerization Initiator, International Publication No. 2018/110179, Photopolymerization Initiator, Japanese Patent Application Laid-Open No. 2019-043864 Examples thereof include the photopolymerization initiator described in JP-A-2019-044030 and the photopolymerization initiator described in JP-A-2019-044030, the contents of which are incorporated in the present specification.

Commercially available α-hydroxyketone compounds include Omnirad 184, Omnirad 1173, Omnirad 2959, Omnirad 127 (all manufactured by IGM Resins BV), Irgacure 184, Irgacure 1173, Irgacare 1173, Irgacure29. (Manufactured by the company) and the like. Commercially available α-aminoketone compounds include Omnirad 907, Omnirad 369, Omnirad 369E, Omnirad 379EG (above, IGM Resins BV), Irgacare 907, Irgacare 369, Irgacure 369, Irgacure 369, Irgar (Made) and so on. Examples of commercially available acylphosphine compounds include Omnirad 819, Omnirad TPO (above, manufactured by IGM Resins BV), Irgacure 819, and Irgacure TPO (above, manufactured by BASF).

Examples of the oxime compound used as another photopolymerization initiator include the compounds described in JP-A-2001-233842, the compounds described in JP-A-2000-080068, and the compounds described in JP-A-2006-342166. J. C. S. The compound according to Perkin II (1979, pp. 1653-1660), J. Mol. C. S. The compound described in Perkin II (1979, pp. 156-162), the compound described in Journal of Photopolymer Science and Technology (1995, pp. 202-232), the compound described in JP-A-2000-066385, the compound described in JP-A-2000-066385. Compounds described in Japanese Patent Application Laid-Open No. 2004-534977, compounds described in JP-A-2006-342166, compounds described in JP-A-2017-019766, compounds described in Japanese Patent Application Laid-Open No. 6065596, International Publication No. 2015 The compound described in / 152153, the compound described in International Publication No. 2017/051680, the compound described in JP-A-2017-198865, the compound described in paragraphs 0025 to 0038 of International Publication No. 2017/164127, Examples thereof include the compounds described in International Publication No. 2013/167515. Other commercially available oxime compounds used as photopolymerization initiators include Irgacure OXE01, Irgacure OXE02, Irgacure OXE03, Irgacure OXE04 (above, manufactured by BASF), and TR-PBG-304 (manufactured by BASF). ).

As another oxime compound used as a photopolymerization initiator, an oxime compound having a fluorene ring can also be used. Specific examples of the oxime compound having a fluorene ring include the compounds described in JP-A-2014-137466.

As another oxime compound used as a photopolymerization initiator, an oxime compound having a skeleton in which at least one benzene ring of the carbazole ring is a naphthalene ring can also be used. Specific examples of such an oxime compound include the compounds described in International Publication No. 2013/083505.

As the oxime compound used as another photopolymerization initiator, an oxime compound having a fluorine atom can also be used. Specific examples of the oxime compound having a fluorine atom are described in the compounds described in JP-A-2010-262028, compounds 24, 36-40 described in JP-A-2014-500852, and JP-A-2013-164471. Compound (C-3) and the like.

As another oxime compound used as a photopolymerization initiator, an oxime compound having a benzofuran skeleton can also be used. Specific examples include OE-01 to OE-75 described in International Publication No. 2015/036910.

As another oxime compound used as a photopolymerization initiator, an oxime compound in which a substituent having a hydroxy group is bonded to a carbazole skeleton can also be used. Examples of such a photopolymerization initiator include the compounds described in International Publication No. 2019/088055.

The content of the photopolymerization initiator in the total solid content of the coloring composition is preferably 0.1 to 30% by mass. The lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more, and further preferably 1.5% by mass or more. The upper limit is preferably 20% by mass or less, more preferably 15% by mass or less.

The content of the oxime compound OX in the total solid content of the coloring composition is preferably 0.1 to 30% by mass. The lower limit is preferably 0.5% by mass or more, and more preferably 1% by mass or more. The upper limit is preferably 20% by mass or less, more preferably 15% by mass or less.

The content of the oxime compound OX in the total mass of the photopolymerization initiator contained in the coloring composition is preferably 20 to 100% by mass, more preferably 35 to 100% by mass, and 40 to 100% by mass. %, More preferably 50 to 100% by mass, and particularly preferably 60 to 100% by mass.

A preferred embodiment of the photopolymerization initiator contained in the coloring composition is an embodiment in which the photopolymerization initiator is substantially only the oxime compound OX. According to this aspect, the interaction with the pigment DPP is strong, and crystal precipitation due to heating can be suppressed more effectively. In the present specification, the case where the photopolymerization initiator is substantially only the oxime compound OX means that the content of the oxime compound OX in the total mass of the photopolymerization initiator is 99% by mass or more. However, it is preferably 99.9% by mass or more, and more preferably the oxime compound OX is the only photopolymerization initiator.

Another preferred embodiment of the photopolymerization initiator contained in the coloring composition is an embodiment in which the photopolymerization initiator contains an oxime compound OX and another photopolymerization initiator other than the oxime compound OX. According to this aspect, it is easy to cure the film more uniformly, and the curability of the entire film can be further improved. In this embodiment, the other photopolymerization initiator is preferably at least one selected from an oxime compound and an α-aminoketone compound because of its high initiator efficiency. The content of the other photopolymerization initiator is preferably 10 to 200 parts by mass, more preferably 20 to 100 parts by mass, and 30 to 80 parts by mass with respect to 100 parts by mass of the oxime compound OX. It is more preferably a part.

<< Polymerizable compound >>
The coloring composition of the present invention contains a polymerizable compound. As the polymerizable compound, a known compound that can be crosslinked by radicals, acids or heat can be used. In the present invention, the polymerizable compound is preferably, for example, a compound having an ethylenically unsaturated bond-containing group. As the ethylenically unsaturated bond-containing group, the ethylenically unsaturated bond-containing group includes a vinyl group, a vinylphenyl group, a (meth) allyl group, a (meth) acryloyl group, a (meth) acryloyloxy group, and a (meth) acryloyl group. Examples thereof include an amide group, and a (meth) acryloyloxy group is preferable. The polymerizable compound used in the present invention is preferably a radically polymerizable compound.

The polymerizable compound may be in any chemical form such as a monomer, a prepolymer, or an oligomer, but a monomer is preferable. The molecular weight of the polymerizable compound is preferably 100 to 3000. The upper limit is more preferably 2000 or less, and even more preferably 1500 or less. The lower limit is more preferably 150 or more, and even more preferably 250 or more.

The polymerizable compound is preferably a compound containing 3 or more ethylenically unsaturated bond-containing groups, more preferably a compound containing 3 to 15 ethylenically unsaturated bond-containing groups, and an ethylenically unsaturated bond. It is more preferable that the compound contains 3 to 6 containing groups. The polymerizable compound is preferably a (meth) acrylate compound having 3 to 15 functionalities, and more preferably a (meth) acrylate compound having 3 to 6 functionalities. Specific examples of the polymerizable compound include paragraph numbers 0905 to 0108 of JP2009-288705A, paragraphs 0227 of JP2013-209760A, paragraphs 0254 to 0257 of JP2008-292970, and JP-A-2008-292970. The compounds described in paragraphs 0034 to 0038 of Japanese Patent Application Laid-Open No. 2013-253224, paragraph numbers 0477 of Japanese Patent Application Laid-Open No. 2012-208494, Japanese Patent Application Laid-Open No. 2017-048367, Japanese Patent No. 6057891 and Japanese Patent No. 6031807 are These contents are incorporated herein by reference.

As polymerizable compounds, dipentaerythritol tri (meth) acrylate (commercially available KAYARAD D-330; manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol tetra (meth) acrylate (commercially available KAYARAD D-320) ; Nippon Kayaku Co., Ltd.), Dipentaerythritol penta (meth) acrylate (commercially available KAYARAD D-310; Nihon Kayaku Co., Ltd.), dipentaerythritol hexa (meth) acrylate (commercially available) KAYARAD DPHA; manufactured by Nippon Kayaku Co., Ltd., NK ester A-DPH-12E; manufactured by Shin-Nakamura Chemical Industry Co., Ltd., and these (meth) acryloyl groups via ethylene glycol and / or propylene glycol residues. Compounds with a bound structure (eg, SR454, SR499 commercially available from Sartmer) are preferred. As polymerizable compounds, diglycerin EO (ethylene oxide) modified (meth) acrylate (commercially available M-460; manufactured by Toa Synthetic), pentaerythritol tetraacrylate (manufactured by Shin-Nakamura Chemical Co., Ltd., NK ester A) -TMMT), 1,6-hexanediol diacrylate (manufactured by Nippon Kayaku Co., Ltd., KAYARAD HDDA), RP-1040 (manufactured by Nippon Kayaku Co., Ltd.), Aronix TO-2349 (manufactured by Toa Synthetic Co., Ltd.) , NK Oligo UA-7200 (manufactured by Shin-Nakamura Chemical Co., Ltd.), DPHA-40H (manufactured by Nippon Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I, AH-600, T-600, AI-600, LINK-202UA (manufactured by Kyoeisha Chemical Co., Ltd.), 8UH-1006, 8UH-1012 (all manufactured by Taisei Fine Chemical Co., Ltd.), light acrylate POB-A0 (manufactured by Kyoeisha Chemical Co., Ltd.), etc. are used. You can also do it.

Examples of the polymerizable compound include trimethylolpropane tri (meth) acrylate, trimethylolpropane propylene oxide-modified tri (meth) acrylate, trimethylolpropane ethylene oxide-modified tri (meth) acrylate, and isocyanurate ethylene oxide-modified tri (meth) acrylate. Trifunctional (meth) acrylate compounds such as pentaerythritol trimethylolpropane (meth) acrylate can also be used. Commercially available trifunctional (meth) acrylate compounds include Aronix M-309, M-310, M-321, M-350, M-360, M-313, M-315, M-306, and M-305. , M-303, M-452, M-450 (manufactured by Toagosei Co., Ltd.), NK ester A9300, A-GLY-9E, A-GLY-20E, A-TMM-3, A-TMM-3L, A -TMM-3LM-N, A-TMPT, TMPT (manufactured by Shin Nakamura Chemical Industry Co., Ltd.), KAYARAD GPO-303, TMPTA, THE-330, TPA-330, PET-30 (manufactured by Nippon Kayaku Co., Ltd.) And so on.

Further, as the polymerizable compound, a compound having an acid group can also be used. By using a polymerizable compound having an acid group, the polymerizable compound in the unexposed portion can be easily removed during development, and the generation of development residue can be suppressed. Examples of the acid group include a carboxyl group, a sulfo group, a phosphoric acid group and the like, and a carboxyl group is preferable. Examples of commercially available products of the polymerizable compound having an acid group include Aronix M-510, M-520, and Aronix TO-2349 (manufactured by Toagosei Co., Ltd.). The preferable acid value of the polymerizable compound having an acid group is 0.1 to 40 mgKOH / g, and more preferably 5 to 30 mgKOH / g. When the acid value of the polymerizable compound is 0.1 mgKOH / g or more, the solubility in a developing solution is good, and when it is 40 mgKOH / g or less, it is advantageous in production and handling.

Further, as the polymerizable compound, a compound having a caprolactone structure can also be used. Examples of commercially available products of the polymerizable compound having a caprolactone structure include KAYARAD DPCA-20, DPCA-30, DPCA-60, and DPCA-120 (all manufactured by Nippon Kayaku Co., Ltd.).

Further, as the polymerizable compound, a polymerizable compound having an alkyleneoxy group can also be used. As the polymerizable compound having an alkyleneoxy group, a polymerizable compound having an ethyleneoxy group and / or a propyleneoxy group is preferable, a polymerizable compound having an ethyleneoxy group is more preferable, and 3 to 3 having 4 to 20 ethyleneoxy groups. A hexafunctional (meth) acrylate compound is more preferred. Commercially available products of the polymerizable compound having an alkyleneoxy group include SR-494, which is a tetrafunctional (meth) acrylate having four ethyleneoxy groups manufactured by Sartmer, and isobutyleneoxy group manufactured by Nippon Kayaku Co., Ltd. Examples thereof include KAYARAD TPA-330, which is a trifunctional (meth) acrylate having three elements.

Further, as the polymerizable compound, a polymerizable compound having a fluorene skeleton can also be used. Examples of commercially available products of the polymerizable compound having a fluorene skeleton include Ogsol EA-0200 and EA-0300 (manufactured by Osaka Gas Chemical Co., Ltd., a (meth) acrylate monomer having a fluorene skeleton).

As the polymerizable compound, it is also preferable to use a compound that does not substantially contain an environmentally regulated substance such as toluene. Examples of commercially available products of such compounds include KAYARAD DPHA LT and KAYARAD DPEA-12 LT (manufactured by Nippon Kayaku Co., Ltd.).

The content of the polymerizable compound in the total solid content of the coloring composition is preferably 0.1 to 50% by mass. The lower limit is more preferably 0.5% by mass or more, and further preferably 1% by mass or more. The upper limit is more preferably 40% by mass or less, further preferably 30% by mass or less. The polymerizable compound may be used alone or in combination of two or more. When two or more kinds are used in combination, it is preferable that the total of them is in the above range.

<< Resin >>
The coloring composition of the present invention contains a resin. The resin is blended, for example, for the purpose of dispersing the pigment in the coloring composition or for the purpose of a binder. The resin mainly used for dispersing the pigment in the coloring composition is also referred to as a dispersant. However, such an application of the resin is an example, and the resin can be used for purposes other than such an application.

The weight average molecular weight (Mw) of the resin is preferably 2000 to 2000000. The upper limit is preferably 1,000,000 or less, and more preferably 500,000 or less. The lower limit is preferably 3000 or more, and more preferably 5000 or more.

Examples of the resin include (meth) acrylic resin, epoxy resin, en-thiol resin, polycarbonate resin, polyether resin, polyarylate resin, polysulfone resin, polyethersulfone resin, polyphenylene resin, polyarylene ether phosphine oxide resin, and polyimide resin. Examples thereof include polyamideimide resin, polyolefin resin, cyclic olefin resin, polyester resin, and styrene resin. One of these resins may be used alone, or two or more thereof may be mixed and used.

The coloring composition of the present invention preferably contains a resin having an acid group. Examples of the acid group include a carboxyl group, a phosphoric acid group, a sulfo group, and a phenolic hydroxy group. These acid groups may be only one kind or two or more kinds. The resin having an acid group can also be used as a dispersant. When the coloring composition of the present invention contains a resin having an acid group, a desired pattern can be formed by alkaline development. The acid value of the resin having an acid group is preferably 30 to 500 mgKOH / g. The lower limit is preferably 50 mgKOH / g or more, and more preferably 70 mgKOH / g or more. The upper limit is preferably 400 mgKOH / g or less, more preferably 200 mgKOH / g or less, further preferably 150 mgKOH / g or less, and most preferably 120 mgKOH / g or less.

The coloring composition of the present invention preferably contains a resin having a basic group. The resin having a basic group is preferably a resin containing a repeating unit having a basic group in the side chain, and a copolymer having a repeating unit having a basic group in the side chain and a repeating unit not containing a basic group. A polymer is more preferable, and a block copolymer having a repeating unit having a basic group in the side chain and a repeating unit not containing a basic group is further preferable. A resin having a basic group can also be used as a dispersant. The amine value of the resin having a basic group is preferably 5 to 300 mgKOH / g. The lower limit is preferably 10 mgKOH / g or more, and more preferably 20 mgKOH / g or more. The upper limit is preferably 200 mgKOH / g or less, and more preferably 100 mgKOH / g or less. Examples of the basic group contained in the resin having a basic group include a group represented by the formula (a-1) and a group represented by the formula (a-2).

In formula (a-1), ^Ra1 and ^Ra2 each independently represent a hydrogen atom, an alkyl group or an aryl group, and ^Ra1 and ^Ra2 may be bonded to each other to form a ring;
Wherein ^{(a-2), R a11} represents a hydrogen atom, a hydroxy group, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an acyl group or an oxy ^radical, R a12 ^{~ R a19} are each independently , Hydrogen atom, alkyl group or aryl group.

^R ^{^a1,} R a2, R a11 number of carbon atoms of the alkyl group represented by ^{~ R a19} is 1-30, more preferably 1-15, more preferably 1-8, particularly preferably 1-5. The alkyl group may be linear, branched or cyclic, preferably linear or branched, more preferably linear. The alkyl group may have a substituent. Examples of the substituent include a group selected from the above-mentioned group of substituent T.

^{^{^{R a1, R a2, R a11}}} ~ number of carbon atoms of the aryl ^{group R a19} represents is preferably 6 to 30, more preferably 6 to 20, more preferably 6 to 12. The aryl group may have a substituent. Examples of the substituent include a group selected from the above-mentioned group of substituent T.

The number of carbon atoms of the alkoxy group R ^a11 represents 1 to 30, more preferably 1 to 15, more preferably 1-8, particularly preferably 1-5. The alkoxy group may have a substituent. Examples of the substituent include a group selected from the above-mentioned group of substituent T.

The ^{aryloxy group represented by Ra11} preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 12 carbon atoms. The aryloxy group may have a substituent. Examples of the substituent include a group selected from the above-mentioned group of substituent T.

The number of carbon atoms of the acyl group R ^a11 represents from 2 to 30, more preferably 2 to 20, 2 to 12 is more preferred. The acyl group may have a substituent. Examples of the substituent include a group selected from the above-mentioned group of substituent T.

Commercially available products of resins having basic groups include DISPERBYK-161, 162, 163, 164, 166, 167, 168, 174, 182, 183, 184, 185, 2000, 2001, 2050, 2150, 2163, 2164, BYK-LPN6919 (above, manufactured by Big Chemie Japan), SOLPERSE 11200, 13240, 13650, 13940, 24000, 26000, 28000, 32000, 32500, 32550, 32600, 33000, 34750, 35100, 35200, 37500, 38500, 39000, 53095 , 56000, 7100 (above, manufactured by Nippon Lubrizol), Efka PX 4300, 4330, 4046, 4060, 4080 (above, manufactured by BASF) and the like. Further, the resin having a basic group is described in the block copolymers (B) described in paragraphs 0063 to 0112 of JP2014-219665A and paragraphs 0046 to 0076 of JP-A-2018-156021. Block copolymer A1 which has been prepared can also be used, and these contents are incorporated in the present specification.

It is also preferable that the coloring composition of the present invention contains a resin having an acid group and a resin having a basic group, respectively. According to this aspect, the storage stability of the coloring composition can be further improved. When a resin having an acid group and a resin having a basic group are used in combination, the content of the resin having a basic group may be 20 to 500 parts by mass with respect to 100 parts by mass of the resin having an acid group. It is preferably 30 to 300 parts by mass, more preferably 50 to 200 parts by mass.

As the resin, a resin containing a repeating unit derived from a compound represented by the formula (ED1) and / or a compound represented by the formula (ED2) (hereinafter, these compounds may be referred to as “ether dimer”) is used. It is also preferable to use it.

In the formula (ED1), R ¹ and R ² each independently represent a hydrocarbon group having 1 to 25 carbon atoms which may have a hydrogen atom or a substituent.

In the formula (ED2), R represents a hydrogen atom or an organic group having 1 to 30 carbon atoms. As a specific example of the formula (ED2), the description of JP-A-2010-168539 can be referred to.

For a specific example of the ether dimer, paragraph number 0317 of JP2013-209760A can be referred to, and the content thereof is incorporated in the present specification.

As the resin, it is also preferable to use a resin containing a repeating unit having a polymerizable group.

As the resin, it is also preferable to use a resin containing a repeating unit derived from the compound represented by the formula (X).

In the formula, R ¹ represents a hydrogen atom or a methyl group, R ²¹ and R ²² each independently represent an alkylene group, and n represents an integer of 0 to 15. The ^{alkylene group represented by R 21} and R ²² preferably has 1 to 10 carbon atoms, more preferably 1 to 5 carbon atoms, further preferably 1 to 3 carbon atoms, and particularly preferably 2 or 3 carbon atoms. preferable. n represents an integer of 0 to 15, preferably an integer of 0 to 5, more preferably an integer of 0 to 4, and even more preferably an integer of 0 to 3.

Examples of the compound represented by the formula (X) include ethylene oxide of paracumylphenol or propylene oxide-modified (meth) acrylate. Examples of commercially available products include Aronix M-110 (manufactured by Toagosei Co., Ltd.).

As the resin, it is also preferable to use a resin having a repeating unit derived from a (meth) acrylate having an alicyclic ring. The (meth) acrylate having an alicyclic ring is preferably a (meth) acrylate having an alicyclic crosslinked ring. Specific examples include (meth) acrylate having a dicyclopentanyl group, (meth) acrylate having an adamantyl group, and the like.

It is also preferable that the resin contains a resin having an aromatic carboxyl group (hereinafter, also referred to as resin Ac). According to this aspect, it is possible to form a film in which the precipitation of foreign substances is more suppressed after the heat treatment. In the resin Ac, the aromatic carboxyl group may be contained in the main chain of the repeating unit or may be contained in the side chain of the repeating unit. The aromatic carboxyl group is preferably contained in the main chain of the repeating unit. In addition, in this specification, an aromatic carboxyl group is a group having a structure in which one or more carboxyl groups are bonded to an aromatic ring. Among the aromatic carboxyl groups, the number of carboxyl groups bonded to the aromatic ring is preferably 1 to 4, and more preferably 1 to 2.

The resin Ac is preferably a resin containing at least one repeating unit selected from the repeating unit represented by the formula (Ac-1) and the repeating unit represented by the formula (Ac-2), and the resin Ac is preferably a resin containing at least one repeating unit. It is more preferable that the resin contains the repeating unit represented by -2). When the resin having an aromatic carboxyl group is a resin having a repeating unit represented by the formula (Ac-2), this resin is preferably used as a dispersant.

In formula (Ac-1), Ar ¹ represents a group containing an aromatic carboxyl group, L ¹ represents -COO- or -CONH-, and L ² represents a divalent linking group.
In formula (Ac-2), Ar ¹⁰ represents a group containing an aromatic carboxyl group, L ¹¹ represents -COO- or -CONH-, L ¹² represents a trivalent linking group, and P ¹⁰ is a polymer. Represents a chain.

^{Examples of the group containing an aromatic carboxyl group represented by Ar 1} in the formula (Ac-1) include a structure derived from an aromatic tricarboxylic acid anhydride, a structure derived from an aromatic tetracarboxylic acid anhydride, and the like. Examples of the aromatic tricarboxylic acid anhydride and the aromatic tetracarboxylic acid anhydride include compounds having the following structures.

In the above formula, Q ¹ is represented by a single bond, -O-, -CO-, -COOCH ₂ CH ₂ OCO-, -SO _2- , -C (CF ₃ ) _2- , and formula (Q-1). Represents a group or a group represented by the formula (Q-2).

Specific examples of the group containing an aromatic carboxyl group represented by Ar ¹ include a group represented by the formula (Ar-11), a group represented by the formula (Ar-12), and a group represented by the formula (Ar-13). Examples include the base.

In the formula (Ar-11), n1 represents an integer of 1 to 4, preferably 1 or 2, and more preferably 2.
In the formula (Ar-12), n2 represents an integer of 1 to 8, preferably an integer of 1 to 4, more preferably 1 or 2, and even more preferably 2.
In the formula (Ar-13), n3 and n4 each independently represent an integer of 0 to 4, preferably an integer of 0 to 2, more preferably 1 or 2, and preferably 1. More preferred. However, at least one of n3 and n4 is an integer of 1 or more.
In the formula (Ar-13), Q ¹ is a single bond, -O-, -CO-, -COOCH ₂ CH ₂ OCO-, -SO _2- , -C (CF ₃ ) _2- , and the above formula (Q-). It represents a group represented by 1) or a group represented by the above formula (Q-2).
Wherein (Ar-11) ~ (Ar -13), * 1 represents a bonding position to ^{L 1.}

In the formula (Ac-1), L ¹ represents -COO- or -CONH-, and preferably -COO-.

^{The divalent linking group represented by L 2} in the formula (Ac-1) includes an alkylene group, an arylene group, -O-, -CO-, -COO-, -OCO-, -NH-, -S- and these. A group that combines two or more of the above can be mentioned. The alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms, and even more preferably 1 to 15 carbon atoms. The alkylene group may be linear, branched or cyclic. The arylene group preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 10 carbon atoms. The alkylene group and the arylene group may have a substituent. Examples of the substituent include a hydroxy group and the like. The divalent linking group L ² represents ^is preferably a group represented by ^-L 2a -O-. L ^2a is an alkylene group; an arylene group; a group combining an alkylene group and an arylene group; at least one selected from an alkylene group and an arylene group, and —O—, −CO−, −COO−, —OCO−, Examples thereof include a group in which at least one selected from —NH— and —S— is combined, and an alkylene group is preferable. The alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms, and even more preferably 1 to 15 carbon atoms. The alkylene group may be linear, branched or cyclic. The alkylene group and the arylene group may have a substituent. Examples of the substituent include a hydroxy group and the like.

The group containing the aromatic carboxyl group represented by ^{Ar 10} in the formula (Ac-2) ^{has the same meaning as Ar 1 in} the formula (Ac-1), and the preferable range is also the same.

In the formula (Ac-2), L ¹¹ represents -COO- or -CONH-, and preferably -COO-.

Hydrocarbon groups, -O-, -CO-, -COO-, -OCO-, -NH-, -S- and two of these are the trivalent linking groups represented by ^{L 12} in the formula (Ac-2). Groups that combine species and above can be mentioned. Examples of the hydrocarbon group include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. The number of carbon atoms of the aliphatic hydrocarbon group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 1 to 15. The aliphatic hydrocarbon group may be linear, branched or cyclic. The number of carbon atoms of the aromatic hydrocarbon group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 10. The hydrocarbon group may have a substituent. Examples of the substituent include a hydroxy group and the like. The ^{trivalent linking group represented by L 12} is preferably a group represented by the formula (L12-1), and more preferably a group represented by the formula (L12-2).

In the formula (L12-1), L ^12b represents a trivalent linking group, X ¹ ^{represents S, * 1 represents the bonding position with L 11 in the} formula (Ac-2), and * 2 represents the bonding position with L 11 in the formula (Ac-2). It represents a bonding position to ^{P 10} of the Ac-2). As the ^{trivalent linking group represented by L 12b} , a hydrocarbon group; a hydrocarbon group and at least one selected from -O-, -CO-, -COO-, -OCO-, -NH- and -S- Examples thereof include a group in which the above is combined with, and a hydrocarbon group or a group in which a hydrocarbon group and —O— are combined is preferable.

In the formula (L12-2), L ^12c represents a trivalent linking group, X ¹ ^{represents S, * 1 represents the bonding position with L 11 in the} formula (Ac-2), and * 2 represents the bonding position with L 11 in the formula (Ac-2). It represents a bonding position to ^{P 10} of the Ac-2). As the ^{trivalent linking group represented by L 12c} , a hydrocarbon group; a hydrocarbon group and at least one selected from -O-, -CO-, -COO-, -OCO-, -NH- and -S- Examples thereof include a group in which the above is combined with, and a hydrocarbon group is preferable.

In formula (Ac-2), P ¹⁰ represents a polymer chain. The ^{polymer chain represented by P 10} preferably has at least one repeating unit selected from poly (meth) acrylic repeating units, polyether repeating units, polyester repeating units and polyol repeating units. The weight average molecular weight of the polymer chain ^{P 10} is preferably 500 to 20,000. The lower limit is preferably 1000 or more. The upper limit is preferably 10,000 or less, more preferably 5000 or less, and even more preferably 3000 or less. When ^{the weight average molecular weight of P 10} is in the above range, the dispersibility of the pigment in the composition is good.

The ^{polymer chain represented by P 10} may contain a crosslinkable group. Examples of the crosslinkable group include an ethylenically unsaturated bond-containing group, a cyclic ether group and a blocked isocyanate group, and an ethylenically unsaturated bond-containing group is preferable. Examples of the ethylenically unsaturated bond-containing group include a vinyl group, a vinylphenyl group, a (meth) allyl group, a (meth) acryloyl group, a (meth) acryloyloxy group, a (meth) acryloylamide group, and the like (meth). Allyl groups, (meth) acryloyl groups and (meth) acryloyloxy groups are preferred, and (meth) acryloyloxy groups are more preferred. Examples of the cyclic ether group include an epoxy group and an oxetanyl group. The blocked isocyanate group in the present invention is a group capable of generating an isocyanate group by heat, and for example, a group in which a blocking agent and an isocyanate group are reacted to protect the isocyanate group can be preferably exemplified. Examples of the blocking agent include oxime compounds, lactam compounds, phenol compounds, alcohol compounds, amine compounds, active methylene compounds, pyrazole compounds, mercaptan compounds, imidazole compounds, and imide compounds. Examples of the blocking agent include the compounds described in paragraphs 0115 to 0117 of JP-A-2017-07930, the contents of which are incorporated herein by reference. Further, the blocked isocyanate group is preferably a group capable of generating an isocyanate group by heat at 90 to 260 ° C.

In the formula (Ac-2), the ^{polymer chain represented by P 10} is preferably a polymer chain containing a repeating unit represented by the following formulas (P-1) to (P-5), and (P-5). More preferably, it is a polymer chain containing a repeating unit represented by.

In the above formula, ^RP1 and ^RP2 each represent an alkylene group. As the ^{alkylene group represented by RP1} and ^RP2 , a linear or branched alkylene group having 1 to 20 carbon atoms is preferable, and a linear or branched alkylene group having 2 to 16 carbon atoms is more preferable. , A linear or branched alkylene group having 3 to 12 carbon atoms is more preferable.
In the above formula, ^RP3 represents a hydrogen atom or a methyl group.
In the above formula, L ^P1 represents a single bond or an arylene group, L ^P2 represents a single bond or a divalent linking group. L ^P1 is preferably a single bond. ^Examples of the divalent linking group represented by LP2 include an alkylene group (preferably an alkylene group having 1 to 12 carbon atoms), an arylene group (preferably an arylene group having 6 to 20 carbon atoms), -NH-, and -SO-. _{-SO 2 -, - CO -,} - O -, - COO -, - OCO -, - S -, - NHCO -, - CONH-, and include a group formed by combining two or more of these.
^RP4 represents a hydrogen atom or a substituent. Substituents include hydroxy group, carboxyl group, alkyl group, aryl group, heteroaryl group, alkoxy group, aryloxy group, heteroaryloxy group, alkylthioether group, arylthioether group, heteroarylthioether group and ethylenically unsaturated group. Examples thereof include a bond-containing group, a cyclic ether group, and a blocked isocyanate group.

Further, the ^{polymer chain represented by P 10} is more preferably a polymer chain having a repeating unit containing an ethylenically unsaturated bond-containing group in the side chain. Further, in all repeating units constituting the P ^10, the proportion of the repeating unit containing an ethylenically unsaturated bond-containing group in the side chain, more be preferably 5 mass% or more and 10 mass% or more It is preferably 20% by mass or more, and more preferably 20% by mass or more. The upper limit can be 100% by mass, preferably 90% by mass or less, and more preferably 60% by mass or less.

It is also preferable that the polymer chain represented by P ¹⁰ has a repeating unit containing an acid group. Examples of the acid group include a carboxyl group, a phosphoric acid group, a sulfo group, and a phenolic hydroxy group. According to this aspect, the dispersibility of a colorant such as a pigment in the coloring composition can be further improved. Further, the developability can be further improved, and the generation of development residue can be further suppressed. The proportion of the repeating unit containing an acid group is preferably 1 to 30% by mass, more preferably 2 to 20% by mass, and even more preferably 3 to 10% by mass.

The weight average molecular weight of the resin Ac is preferably 3000 to 35000. The upper limit is preferably 25,000 or less, more preferably 20,000 or less, and even more preferably 15,000 or less. The lower limit is preferably 4000 or more, more preferably 6000 or more, and further preferably 7000 or more.

The acid value of the resin Ac is preferably 5 to 200 mgKOH / g. The upper limit is preferably 150 mgKOH / g or less, more preferably 100 mgKOH / g or less, and even more preferably 80 mgKOH / g or less. The lower limit is preferably 10 mgKOH / g or more, more preferably 15 mgKOH / g or more, and even more preferably 20 mgKOH / g or more.

The resin preferably contains a resin as a dispersant. Examples of the dispersant include an acidic dispersant (acidic resin) and a basic dispersant (basic resin). Here, the acidic dispersant (acidic resin) represents a resin in which the amount of acid groups is larger than the amount of basic groups. Further, the basic dispersant (basic resin) represents a resin in which the amount of basic groups is larger than the amount of acid groups.

As the acidic dispersant (acidic resin), a resin having an acid group amount of 70 mol% or more is preferable when the total amount of the acid group amount and the basic group amount is 100 mol%. The acid group of the acidic dispersant (acidic resin) is preferably a carboxyl group. The acid value of the acidic dispersant (acidic resin) is preferably 5 to 200 mgKOH / g. The upper limit is preferably 150 mgKOH / g or less, more preferably 100 mgKOH / g or less, and even more preferably 80 mgKOH / g or less. The lower limit is preferably 10 mgKOH / g or more, more preferably 15 mgKOH / g or more, and even more preferably 20 mgKOH / g or more.

As the basic dispersant (basic resin), a resin in which the amount of basic groups is 60 mol% or more is preferable when the total amount of the amount of acid groups and the amount of basic groups is 100 mol%. The basic group contained in the basic dispersant is preferably an amino group. The amine value of the basic dispersant (basic resin) is preferably 5 to 100 mgKOH / g. The upper limit is preferably 80 mgKOH / g or less, more preferably 60 mgKOH / g or less, and even more preferably 45 mgKOH / g or less. The lower limit is preferably 10 mgKOH / g or more, more preferably 15 mgKOH / g or more, and even more preferably 20 mgKOH / g or more.

The resin used as the dispersant is also preferably a graft resin. For details of the graft resin, the description in paragraphs 0025 to 0094 of JP2012-255128A can be referred to, and the content thereof is incorporated in the present specification.

The resin used as the dispersant is also preferably a resin having an aromatic carboxyl group (resin Ac). Examples of the resin having an aromatic carboxyl group include those described above.

The resin used as the dispersant is also preferably a polyimine-based dispersant containing a nitrogen atom in at least one of the main chain and the side chain. The polyimine-based dispersant has a main chain having a partial structure having a functional group of pKa14 or less, a side chain having 40 to 10,000 atoms, and a basic nitrogen atom in at least one of the main chain and the side chain. The resin to have is preferable. The basic nitrogen atom is not particularly limited as long as it is a nitrogen atom exhibiting basicity. Regarding the polyimine-based dispersant, the description in paragraphs 0102 to 0166 of JP2012-255128A can be referred to, and this content is incorporated in the present specification.

It is also preferable that the resin used as the dispersant is a resin having a structure in which a plurality of polymer chains are bonded to the core portion. Examples of such a resin include dendrimers (including star-shaped polymers). Specific examples of the dendrimer include polymer compounds C-1 to C-31 described in paragraphs 0196 to 0209 of JP2013-043962.

The resin used as the dispersant is also preferably a resin containing a repeating unit having an ethylenically unsaturated bond-containing group in the side chain. The content of the repeating unit having an ethylenically unsaturated bond-containing group in the side chain is preferably 10 mol% or more, more preferably 10 to 80 mol%, and 20 to 70 in all the repeating units of the resin. More preferably, it is in mol%. Further, as the dispersant, the resin described in JP-A-2018-087939 can also be used.

Dispersants are also available as commercial products, and specific examples thereof include DISPERBYK series manufactured by Big Chemie Japan, SOLSPERSE series manufactured by Japan Lubrizol, Efka series manufactured by BASF, and Ajinomoto Fine-Techno (Ajinomoto Fine-Techno). Examples include the Ajispar series manufactured by Co., Ltd. Further, the product described in paragraph number 0129 of JP2012-137564A and the product described in paragraph number 0235 of JP2017-194662 can also be used as a dispersant.

Further, as the resin used as the dispersant, the block copolymers (EB-1) to (EB-9) described in paragraphs 0219 to 0221 of Japanese Patent No. 6432077 can also be used.

The content of the resin in the total solid content of the coloring composition is preferably 1 to 80% by mass. The lower limit is preferably 5% by mass or more, more preferably 10% by mass or more, further preferably 15% by mass or more, and particularly preferably 20% by mass or more. The upper limit is preferably 70% by mass or less, more preferably 60% by mass or less, further preferably 50% by mass or less, and particularly preferably 40% by mass or less. The coloring composition of the present invention may contain only one type of resin, or may contain two or more types of resin. When two or more kinds of resins are contained, it is preferable that the total amount thereof is within the above range.

<< Pigment derivative >>
The coloring composition of the present invention preferably contains a pigment derivative. Examples of the pigment derivative include compounds having a structure in which an acid group or a basic group is bonded to the pigment skeleton. The pigment skeletons constituting the pigment derivatives include quinoline pigment skeleton, benzoimidazolone pigment skeleton, benzoisoindole pigment skeleton, benzothiazole pigment skeleton, inimium pigment skeleton, squarylium pigment skeleton, croconium pigment skeleton, oxonor pigment skeleton, and pyrolopyrrolop pigment. Skeleton, diketopyrrolopyrrole pigment skeleton, azo pigment skeleton, azomethine pigment skeleton, phthalocyanine pigment skeleton, naphthalocyanine pigment skeleton, anthraquinone pigment skeleton, dianthraquinone pigment skeleton, quinacridone pigment skeleton, dioxazine pigment skeleton, perinone pigment skeleton, perylene pigment skeleton , Thiadine indigo pigment skeleton, thioindigo pigment skeleton, isoindolin pigment skeleton, isoindolinone pigment skeleton, quinophthalone pigment skeleton, iminium pigment skeleton, dithiol pigment skeleton, triarylmethane pigment skeleton, pyromethene pigment skeleton, etc. Pyrrolopyrrolop pigment skeleton, benzoisoindole pigment skeleton, anthraquinone pigment skeleton, dianthraquinone pigment skeleton, thiazine indigo pigment skeleton, azo pigment skeleton, quinophthalone pigment skeleton, and quinacridone pigment skeleton are preferable, and diketopyrrolopyrrole pigment skeleton is preferable. Is more preferable. That is, the pigment derivative is preferably a diketopyrrolopyrrole compound. According to this aspect, a film having a higher color value of red can be formed, and it is more preferably used as a coloring composition for red pixels. Examples of the acid group include a sulfo group, a carboxyl group, a phosphoric acid group and salts thereof. As atoms or groups of atoms constituting the salt, alkali metal ions (Li ⁺ , Na ⁺ , K ^+, etc.), alkaline earth metal ions (Ca ²⁺ , Mg ^2+, etc.), ammonium ions, imidazolium ions, pyridinium ions, etc. Examples include phosphonium ions. Examples of the basic group include an amino group, a pyridinyl group and a salt thereof, a salt of an ammonium group, and a phthalimide methyl group. Examples of the atom or atomic group constituting the salt include hydroxide ion, halogen ion, carboxylic acid ion, sulfonic acid ion, and phenoxide ion.

As a pigment derivative, a pigment derivative having excellent visible transparency (hereinafter, also referred to as a transparent pigment derivative) can be contained. The maximum value of the molar extinction coefficient in the wavelength region of 400 ~ 700 nm of the transparent pigment derivative (.epsilon.max) is that it is preferable, 1000L ^· mol ^-1 ^· ^cm -1 or less is not more than 3000L ^· mol ^-1 ^· ^cm -1 Is more preferable, and 100 L · mol ^-1 · cm ^-1 or less is further preferable. The lower limit of εmax is, for example, 1 L · mol ^-1 · cm ^-1 or more, and ^{may be 10 L · mol -1} · cm ^-1 or more.

Specific examples of the pigment derivative include the compounds described in Examples described later, JP-A-56-118462, JP-A-63-246674, JP-A-01-217777, and JP-A-03-009961. , Japanese Patent Application Laid-Open No. 03-026767, Japanese Patent Application Laid-Open No. 03-153780, Japanese Patent Application Laid-Open No. 03-045662, Japanese Patent Application Laid-Open No. 04-285669, Japanese Patent Application Laid-Open No. 06-145546, Japanese Patent Application Laid-Open No. 06-212088, Kaihei 06-240158, Japanese Patent Application Laid-Open No. 10-030063, Japanese Patent Application Laid-Open No. 10-195326, International Publication No. 2011/024896, paragraph numbers 0083-0998, International Publication No. 2012/102399, paragraph numbers 0063-0094 , International Publication No. 2017/038252, Paragraph No. 028, Japanese Patent Application Laid-Open No. 2015-151530, Japanese Patent Application Laid-Open No. 2011-52065, Paragraph Nos. 0162 to 0183, Japanese Patent Application Laid-Open No. 2003-081972, Patent No. 5299151. Examples thereof include the compounds described in JP-A-2015-172732, JP-A-2014-199308, JP-A-2014-0855562, JP-A-2014-035351, and JP-A-2008-081565.

When the pigment derivative is contained, the content of the pigment derivative is preferably 1 to 30 parts by mass, more preferably 1 to 20 parts by mass, still more preferably 2 to 10 parts by mass, and 3 to 8 parts by mass with respect to 100 parts by mass of the pigment. Parts by mass are particularly preferred. Only one type of pigment derivative may be used, or two or more types may be used in combination. When two or more kinds are used in combination, the total amount thereof is preferably in the above range.

<< Solvent >>
The coloring composition of the present invention preferably contains a solvent. Examples of the solvent include organic solvents. The type of solvent is basically not particularly limited as long as it satisfies the solubility of each component and the coatability of the coloring composition. Examples of the organic solvent include ester solvents, ketone solvents, alcohol solvents, amide solvents, ether solvents, hydrocarbon solvents and the like. For these details, paragraph No. 0223 of WO 2015/166779 can be referred to, the contents of which are incorporated herein by reference. Further, an ester solvent substituted with a cyclic alkyl group and a ketone solvent substituted with a cyclic alkyl group can also be preferably used. Specific examples of the organic solvent include polyethylene glycol monomethyl ether, dichloromethane, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl cellosolve acetate, ethyl lactate, diethylene glycol dimethyl ether, butyl acetate, methyl 3-methoxypropionate, 2 -Heptanone, cyclohexanone, cyclohexyl acetate, cyclopentanone, ethyl carbitol acetate, butyl carbitol acetate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, 3-methoxy-N, N-dimethylpropanamide, 3-butoxy-N , N-Dimethylpropanamide and the like. However, aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, etc.) as organic solvents may need to be reduced for environmental reasons (for example, 50 mass ppm (parts) with respect to the total amount of organic solvent. Per million) or less, 10 mass ppm or less, or 1 mass ppm or less).

In the present invention, it is preferable to use an organic solvent having a low metal content, and the metal content of the organic solvent is preferably, for example, 10 mass ppb (parts per parts) or less. If necessary, an organic solvent at the mass ppt (parts per parts) level may be used, and such an organic solvent is provided by, for example, Toyo Gosei Co., Ltd. (The Chemical Daily, November 13, 2015).

Examples of the method for removing impurities such as metals from the organic solvent include distillation (molecular distillation, thin film distillation, etc.) and filtration using a filter. The filter pore diameter of the filter used for filtration is preferably 10 μm or less, more preferably 5 μm or less, and even more preferably 3 μm or less. The filter material is preferably polytetrafluoroethylene, polyethylene or nylon.

The organic solvent may contain isomers (compounds having the same number of atoms but different structures). Further, only one kind of isomer may be contained, or a plurality of kinds may be contained.

The content of peroxide in the organic solvent is preferably 0.8 mmol / L or less, and more preferably substantially free of peroxide.

The content of the solvent in the coloring composition is preferably 10 to 95% by mass, more preferably 20 to 90% by mass, and even more preferably 30 to 90% by mass.

Further, it is preferable that the coloring composition of the present invention does not substantially contain an environmentally regulated substance from the viewpoint of environmental regulation. In the present invention, substantially free of the environmentally regulated substance means that the content of the environmentally regulated substance in the coloring composition is 50 mass ppm or less, and preferably 30 mass ppm or less. It is more preferably 10 mass ppm or less, and particularly preferably 1 mass ppm or less. Examples of environmentally regulated substances include benzene; alkylbenzenes such as toluene and xylene; and halogenated benzenes such as chlorobenzene. These are REACH (Registration Evolution Analysis and Restriction of Chemicals) regulations, PRTR (Pollutant Release and Transfer Register) method, VOC (Volatile Organic Compounds), regulated by VOC (Volatile Organic Compounds), regulated by VOC (Volatile Organic Compounds) The method is strictly regulated. These compounds may be used as a solvent in producing each component used in the coloring composition, and may be mixed in the coloring composition as a residual solvent. From the viewpoint of human safety and consideration for the environment, it is preferable to reduce these substances as much as possible. Examples of the method for reducing the environmentally regulated substance include a method of heating or depressurizing the inside of the system to raise the boiling point of the environmentally regulated substance to the boiling point or higher, and distilling off the environmentally regulated substance from the system to reduce the amount of the environmentally regulated substance. Further, when distilling off a small amount of an environmentally regulated substance, it is also useful to azeotrope with a solvent having a boiling point equivalent to that of the solvent in order to improve efficiency. When a compound having radical polymerization property is contained, a polymerization inhibitor or the like is added and distilled under reduced pressure in order to prevent the radical polymerization reaction from proceeding and cross-linking between molecules during distillation under reduced pressure. You may. These distillation methods include a stage of a raw material, a stage of a product obtained by reacting the raw materials (for example, a resin solution after polymerization or a polyfunctional monomer solution), or a stage of a coloring composition prepared by mixing these compounds. It is possible at any stage of.

<< Compound with cyclic ether group >>
The coloring composition of the present invention can contain a compound having a cyclic ether group. Examples of the cyclic ether group include an epoxy group and an oxetanyl group. The compound having a cyclic ether group is preferably a compound having an epoxy group (hereinafter, also referred to as an epoxy compound). Examples of the epoxy compound are described in paragraphs 0034 to 0036 of JP2013-011869A, paragraph numbers 0147 to 0156 of JP2014-043556, and paragraph numbers 0085 to 0092 of JP2014-089408. Compounds, compounds described in JP-A-2017-179172 can also be used. These contents are incorporated herein by reference.

The epoxy compound may be a small molecule compound (for example, a molecular weight of less than 2000, further, a molecular weight of less than 1000) or a polymer compound (for example, a molecular weight of 1000 or more, and in the case of a polymer, a weight average molecular weight of 1000 or more). It may be. The weight average molecular weight of the epoxy compound is preferably 200 to 100,000, more preferably 500 to 50,000. The upper limit of the weight average molecular weight is preferably 10,000 or less, more preferably 5000 or less, and even more preferably 3000 or less.

As the epoxy compound, an epoxy resin can be preferably used. Examples of the epoxy resin include an epoxy resin which is a glycidyl etherified product of a phenol compound, an epoxy resin which is a glycidyl etherified product of various novolak resins, an alicyclic epoxy resin, an aliphatic epoxy resin, a heterocyclic epoxy resin, and a glycidyl ester type. Epoxy resin, glycidylamine-based epoxy resin, epoxy resin obtained by glycidylizing halogenated phenols, condensate of silicon compound having an epoxy group and other silicon compounds, polymerizable unsaturated compound having an epoxy group and other Examples thereof include a copolymer with another polymerizable unsaturated compound. The epoxy equivalent of the epoxy resin is preferably 310 to 3300 g / eq, more preferably 310 to 1700 g / eq, and even more preferably 310 to 1000 g / eq.

Commercially available products of compounds having a cyclic ether group include, for example, EHPE3150 (manufactured by Daicel Corporation), EPICLON N-695 (manufactured by DIC Corporation), Marproof G-0150M, G-0105SA, G-0130SP, G. -0250SP, G-1005S, G-1005SA, G-1010S, G-2050M, G-01100, G-01758 (all manufactured by Nichiyu Co., Ltd., epoxy group-containing polymer) and the like can be mentioned.

The content of the compound having a cyclic ether group in the total solid content of the coloring composition is preferably 0.1 to 20% by mass. The lower limit is, for example, preferably 0.5% by mass or more, and more preferably 1% by mass or more. The upper limit is, for example, preferably 15% by mass or less, and more preferably 10% by mass or less. The compound having a cyclic ether group may be only one kind or two or more kinds. In the case of two or more types, it is preferable that the total amount thereof is within the above range.

<< Curing Accelerator >>
The coloring composition of the present invention may contain a curing accelerator. Examples of the curing accelerator include thiol compounds, methylol compounds, amine compounds, phosphonium salt compounds, amidin salt compounds, amide compounds, base generators, isocyanate compounds, alkoxysilane compounds, and onium salt compounds. Specific examples of the curing accelerator include the compounds described in paragraphs 0094 to 0097 of WO2018 / 056189, the compounds described in paragraphs 0246 to 0253 of JP2015-034963, and JP2013-014165. Compounds described in paragraphs 0186 to 0251 of Japanese Patent Application Laid-Open No. 0186 to 0251, ionic compounds described in Japanese Patent Application Laid-Open No. 2014-0551414, compounds described in paragraphs 0071 to 0080 of Japanese Patent Application Laid-Open No. 2012-150180, Japanese Patent Laid-Open No. 2011-253054 Examples thereof include an alkoxysilane compound having an epoxy group described in Japanese Patent Application Laid-Open No. 5, a compound described in paragraphs 805 to 0092 of Japanese Patent No. 5765059, and a carboxyl group-containing epoxy curing agent described in JP-A-2017-0363379. When the curing accelerator is contained, the content of the curing accelerator in the total solid content of the coloring composition is preferably 0.3 to 8.9% by mass, more preferably 0.8 to 6.4% by mass.

<< UV absorber >>
The coloring composition of the present invention can contain an ultraviolet absorber. As the ultraviolet absorber, a conjugated diene compound, an aminodiene compound, a salicylate compound, a benzophenone compound, a benzotriazole compound, an acrylonitrile compound, a hydroxyphenyltriazine compound, an indol compound, a triazine compound and the like can be used. Examples of such compounds include paragraph numbers 0038 to 0052 of JP2009-217221A, paragraph numbers 0052 to 0072 of JP2012-208374A, and paragraph numbers 0317 to 0334 of JP2013-068814. Examples include the compounds described in paragraphs 0061 to 0080 of JP 2016-162946, the contents of which are incorporated herein. Specific examples of the ultraviolet absorber include compounds having the following structures. Examples of commercially available ultraviolet absorbers include UV-503 (manufactured by Daito Kagaku Co., Ltd.). Examples of the benzotriazole compound include the MYUA series made by Miyoshi Oil & Fat Co., Ltd. (The Chemical Daily, February 1, 2016). Further, as the ultraviolet absorber, the compounds described in paragraphs 0049 to 0059 of Japanese Patent No. 6268967 can also be used.

When an ultraviolet absorber is contained, the content of the ultraviolet absorber in the total solid content of the coloring composition is preferably 0.01 to 10% by mass, more preferably 0.01 to 5% by mass. In the present invention, only one type of ultraviolet absorber may be used, or two or more types may be used. When two or more types are used, the total amount is preferably in the above range.

<< Polymerization inhibitor >>
The coloring composition of the present invention can contain a polymerization inhibitor. Examples of the polymerization inhibitor include hydroquinone, p-methoxyphenol, di-tert-butyl-p-cresol, pyrogallol, tert-butylcatechol, benzoquinone, 4,4'-thiobis (3-methyl-6-tert-butylphenol), and the like. Examples thereof include 2,2'-methylenebis (4-methyl-6-t-butylphenol) and N-nitrosophenylhydroxyamine salts (ammonium salt, primary cerium salt, etc.). Of these, p-methoxyphenol is preferable. When a polymerization inhibitor is contained, the content of the polymerization inhibitor in the total solid content of the coloring composition is preferably 0.0001 to 5% by mass. The polymerization inhibitor may be only one type or two or more types. In the case of two or more types, the total amount is preferably in the above range.

<< Silane Coupling Agent >>
The coloring composition of the present invention can contain a silane coupling agent. In the present invention, the silane coupling agent means a silane compound having a hydrolyzable group and other functional groups. The hydrolyzable group refers to a substituent that is directly linked to a silicon atom and can form a siloxane bond by at least one of a hydrolysis reaction and a condensation reaction. Examples of the hydrolyzable group include a halogen atom, an alkoxy group, an acyloxy group and the like, and an alkoxy group is preferable. That is, the silane coupling agent is preferably a compound having an alkoxysilyl group. Examples of the functional group other than the hydrolyzable group include a vinyl group, a (meth) allyl group, a (meth) acryloyl group, a mercapto group, an epoxy group, an oxetanyl group, an amino group, a ureido group, a sulfide group and an isocyanate group. , A phenyl group and the like, preferably an amino group, a (meth) acryloyl group and an epoxy group. Specific examples of the silane coupling agent include N-β-aminoethyl-γ-aminopropylmethyldimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-602), N-β-aminoethyl-γ-amino. Propyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-603), N-β-aminoethyl-γ-aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBE-602), γ-Aminopropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-903), γ-aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBE-903), 3-methacryloxy There are propylmethyldimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-502), 3-methacryloxypropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-503) and the like. Specific examples of the silane coupling agent include the compounds described in paragraphs 0018 to 0036 of JP2009-288703 and the compounds described in paragraphs 0056 to 0066 of JP2009-242604A. , These contents are incorporated herein by reference. When a silane coupling agent is contained, the content of the silane coupling agent in the total solid content of the coloring composition is preferably 0.01 to 15.0% by mass, more preferably 0.05 to 10.0% by mass. preferable. The silane coupling agent may be only one type or two or more types. In the case of two or more types, the total amount is preferably in the above range.

<< Surfactant >>
The coloring composition of the present invention can contain a surfactant. As the surfactant, various surfactants such as a fluorine-based surfactant, a nonionic surfactant, a cationic surfactant, an anionic surfactant, and a silicone-based surfactant can be used. As for the surfactant, the surfactant described in paragraph Nos. 0238 to 0245 of International Publication No. 2015/166779 is mentioned, and the content thereof is incorporated in the present specification.

The surfactant is preferably a fluorine-based surfactant. By containing a fluorine-based surfactant in the coloring composition, the liquid characteristics (particularly, fluidity) can be further improved, and the liquid saving property can be further improved. It is also possible to form a film having a small thickness unevenness.

The fluorine content in the fluorine-based surfactant is preferably 3 to 40% by mass, more preferably 5 to 30% by mass, and particularly preferably 7 to 25% by mass. A fluorine-based surfactant having a fluorine content within this range is effective in terms of uniformity of coating film thickness and liquid saving property, and has good solubility in a coloring composition.

Examples of the fluorine-based surfactant include the surfactants described in paragraphs 0060 to 0064 of Japanese Patent Application Laid-Open No. 2014-041318 (paragraphs 0060 to 0064 of the corresponding International Publication No. 2014/017669) and the like, Japanese Patent Application Laid-Open No. 2011-. The surfactants described in paragraphs 0117 to 0132 of JP 132503 are mentioned and their contents are incorporated herein by reference. Commercially available products of fluorine-based surfactants include, for example, Megafuck F171, F172, F173, F176, F177, F141, F142, F143, F144, R30, F437, F475, F479, F482, F554, F780, EXP, MFS. -330 (above, manufactured by DIC Co., Ltd.), Florard FC430, FC431, FC171 (above, manufactured by Sumitomo 3M Ltd.), Surfron S-382, SC-101, SC-103, SC-104, SC-105, Examples thereof include SC-1068, SC-381, SC-383, S-393, KH-40 (above, manufactured by AGC Inc.), PolyFox PF636, PF656, PF6320, PF6520, PF7002 (above, manufactured by OMNOVA) and the like. ..

In addition, the fluorine-based surfactant has a molecular structure having a functional group containing a fluorine atom, and when heat is applied, the portion of the functional group containing the fluorine atom is cut and the fluorine atom is volatilized. Can be preferably used. Examples of such fluorine-based surfactants include the Megafuck DS series manufactured by DIC Corporation (The Chemical Daily (February 22, 2016), Nikkei Sangyo Shimbun (February 23, 2016)), for example, Megafuck. DS-21 can be mentioned.

Further, as the fluorine-based surfactant, it is also preferable to use a polymer of a fluorine atom-containing vinyl ether compound having a fluorinated alkyl group or a fluorinated alkylene ether group and a hydrophilic vinyl ether compound. Examples of such a fluorine-based surfactant include the fluorine-based surfactants described in JP-A-2016-216602, the contents of which are incorporated in the present specification.

As the fluorine-based surfactant, a block polymer can also be used. The fluorine-based surfactant has a repeating unit derived from a (meth) acrylate compound having a fluorine atom and 2 or more (preferably 5 or more) alkyleneoxy groups (preferably ethyleneoxy groups and propyleneoxy groups) (meth). A fluorine-containing polymer compound containing a repeating unit derived from an acrylate compound can also be preferably used. Further, the fluorine-containing surfactants described in paragraphs 0016 to 0037 of JP-A-2010-032698 and the following compounds are also exemplified as the fluorine-based surfactants used in the present invention.

The weight average molecular weight of the above compounds is preferably 3000 to 50000, for example 14000. Among the above compounds,% indicating the ratio of the repeating unit is mol%.

Further, as the fluorine-based surfactant, a fluorine-containing polymer having an ethylenically unsaturated bond-containing group in the side chain can also be used. As specific examples, the compounds described in paragraphs 0050 to 0090 and paragraph numbers 0289 to 0295 of JP2010-164965, Megafuck RS-101, RS-102, RS-718K manufactured by DIC Corporation, RS-72-K and the like can be mentioned. Further, as the fluorine-based surfactant, the compounds described in paragraphs 0015 to 0158 of JP2015-117327A can also be used.

Nonionic surfactants include glycerol, trimethylolpropane, trimethylolethane, and their ethoxylates and propoxylates (eg, glycerol propoxylate, glycerol ethoxylate, etc.), polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, and the like. Polyoxyethylene oleyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene nonylphenyl ether, polyethylene glycol dilaurate, polyethylene glycol distearate, sorbitan fatty acid ester, Pluronic L10, L31, L61, L62, 10R5, 17R2, 25R2 (BASF) , Tetronic 304, 701, 704, 901, 904, 150R1 (manufactured by BASF), Solspers 20000 (manufactured by Nippon Lubrizol Co., Ltd.), NCW-101, NCW-1001, NCW-1002 (Fujifilm sum) Kojunyaku Co., Ltd., Pionin D-6112, D-6112-W, D-6315 (Takemoto Yushi Co., Ltd.), Orphine E1010, Surfinol 104, 400, 440 (Nissin Chemical Industry Co., Ltd.) ) And so on.

Examples of the silicone-based surfactant include Torre Silicone DC3PA, Torre Silicone SH7PA, Torre Silicone DC11PA, Torre Silicone SH21PA, Torre Silicone SH28PA, Torre Silicone SH29PA, Torre Silicone SH30PA, Torre Silicone SH8400 (all, Toray Dow Corning Co., Ltd.). ), TSF-4440, TSF-4300, TSF-4445, TSF-4460, TSF-4452 (above, manufactured by Momentive Performance Materials), KP-341, KF-6001, KF-6002 (above, Examples thereof include Shin-Etsu Chemical Co., Ltd., BYK307, BYK323, BYK330 (all manufactured by Big Chemie) and the like.

When a surfactant is contained, the content of the surfactant in the total solid content of the coloring composition is preferably 0.001% by mass to 5.0% by mass, more preferably 0.005 to 3.0% by mass. preferable. The surfactant may be only one kind or two or more kinds. In the case of two or more types, the total amount is preferably in the above range.

<< Antioxidant >>
The coloring composition of the present invention can contain an antioxidant. Examples of the antioxidant include phenol compounds, phosphite ester compounds, thioether compounds and the like. As the phenol compound, any phenol compound known as a phenolic antioxidant can be used. Preferred phenolic compounds include hindered phenolic compounds. A compound having a substituent at a site (ortho position) adjacent to the phenolic hydroxy group is preferable. As the above-mentioned substituent, a substituted or unsubstituted alkyl group having 1 to 22 carbon atoms is preferable. Further, as the antioxidant, a compound having a phenol group and a phosphite ester group in the same molecule is also preferable. Further, as the antioxidant, a phosphorus-based antioxidant can also be preferably used. The content of the antioxidant in the total solid content of the coloring composition is preferably 0.01 to 20% by mass, more preferably 0.3 to 15% by mass. When containing an antioxidant, only one type of antioxidant may be used, or two or more types may be used. When two or more types are used, the total amount is preferably in the above range.

<< Other ingredients >>
The coloring compositions of the present invention, as required, include sensitizers, curing accelerators, fillers, thermosetting accelerators, plasticizers and other auxiliaries (eg, conductive particles, fillers, defoamers, etc.). It may contain a flame retardant, a leveling agent, a peeling accelerator, a fragrance, a surface tension modifier, a chain transfer agent, etc.). By appropriately containing these components, properties such as film physical characteristics can be adjusted. These components are described in, for example, paragraph No. 0183 and subsequent paragraphs of JP2012-003225A (paragraph number 0237 of the corresponding US Patent Application Publication No. 2013/0034812), paragraphs of JP-A-2008-250074. The descriptions of Nos. 0101 to 0104, 0107 to 0109, etc. can be taken into consideration, and these contents are incorporated in the present specification. In addition, the coloring composition of the present invention may contain a latent antioxidant, if necessary. The latent antioxidant is a compound in which the site that functions as an antioxidant is protected by a protecting group, and is heated at 100 to 250 ° C. or at 80 to 200 ° C. in the presence of an acid / base catalyst. As a result, a compound in which the protecting group is eliminated and functions as an antioxidant can be mentioned. Examples of the latent antioxidant include compounds described in International Publication No. 2014/021023, International Publication No. 2017/030005, and JP-A-2017-008219. Examples of commercially available products of latent antioxidants include ADEKA ARKULS GPA-5001 (manufactured by ADEKA Corporation) and the like. Further, as described in Japanese Patent Application Laid-Open No. 2018-155881, C.I. I. Pigment Yellow 129 may be added for the purpose of improving weather resistance.

The coloring composition of the present invention may contain a metal oxide in order to adjust the refractive index of the obtained film. Examples of the metal oxide include TiO ₂ , ZrO ₂ , Al ₂ O ₃ , SiO _{2 and the} like. The primary particle size of the metal oxide is preferably 1 to 100 nm, more preferably 3 to 70 nm, and even more preferably 5 to 50 nm. The metal oxide may have a core-shell structure. Further, in this case, the core portion may be hollow.

The coloring composition of the present invention may contain a light resistance improving agent. Examples of the light resistance improving agent include the compounds described in paragraphs 0036 to 0037 of JP-A-2017-198787, the compounds described in paragraphs 0029 to 0034 of JP-A-2017-146350, and JP-A-2017-129774. The compounds described in paragraphs 0036 to 0037 and 0049 to 0052, the compounds described in paragraphs 0031 to 0034 and 0058 to 0059 of JP-A-2017-129674, and paragraph numbers 0036 to 0037 of JP-A-2017-122803. , 0051 to 0054, compounds described in paragraphs 0025 to 0039 of International Publication No. 2017/164127, compounds described in paragraphs 0034 to 0047 of JP-A-2017-186546, JP-A-2015-0251116. Compounds described in paragraphs 0019 to 0041 of Japanese Patent Application Laid-Open No. 2012-145604, compounds described in paragraph numbers 0101 to 0125 of Japanese Patent Application Laid-Open No. 2012-143475, compounds described in paragraph numbers 0018 to 0021 of Japanese Patent Application Laid-Open No. 2012-103475. The compounds described in paragraphs 0015 to 0018 of Japanese Patent Application Laid-Open No. 2011-257591, the compounds described in paragraphs 0017 to 0021 of JP-A-2011-191483, and paragraph numbers 0108 to 0116 of JP-A-2011-145668. , The compounds described in paragraph Nos. 0103 to 0153 of JP2011-253174A, and the like.

The water content of the coloring composition of the present invention is usually 3% by mass or less, preferably 0.01 to 1.5% by mass, and more preferably 0.1 to 1.0% by mass. The water content can be measured by the Karl Fischer method.

The coloring composition of the present invention can be used by adjusting the viscosity for the purpose of adjusting the film surface (flatness, etc.), adjusting the film thickness, and the like. The viscosity value can be appropriately selected as needed, but for example, at 25 ° C., 0.3 mPa · s to 50 mPa · s is preferable, and 0.5 mPa · s to 20 mPa · s is more preferable. As a method for measuring the viscosity, for example, a cone plate type viscometer can be used, and the viscosity can be measured in a state where the temperature is adjusted to 25 ° C.

The container for the colored composition of the present invention is not particularly limited, and a known container can be used. In addition, as a storage container, for the purpose of suppressing impurities from being mixed into raw materials and compositions, a multi-layer bottle in which the inner wall of the container is composed of 6 types and 6 layers of resin and a bottle in which 6 types of resin are composed of 7 layers are used. It is also preferable to use it. Examples of such a container include the container described in Japanese Patent Application Laid-Open No. 2015-123351.

<Preparation method of coloring composition>
The coloring composition of the present invention can be prepared by mixing the above-mentioned components. In preparing the coloring composition, all the components may be dissolved and / or dispersed in a solvent at the same time to prepare the coloring composition, or each component may be appropriately used as two or more solutions or dispersions, if necessary. Then, these may be mixed at the time of use (at the time of application) to prepare a coloring composition.

Further, when preparing the coloring composition, it is preferable to include a process of dispersing the pigment. In the process of dispersing the pigment, the mechanical force used for dispersing the pigment includes compression, squeezing, impact, shearing, cavitation and the like. Specific examples of these processes include bead mills, sand mills, roll mills, ball mills, paint shakers, microfluidizers, high speed impellers, sand grinders, flow jet mixers, high pressure wet atomization, ultrasonic dispersion and the like. Further, in the pulverization of the pigment in the sand mill (bead mill), it is preferable to use beads having a small diameter and to process under the condition that the pulverization efficiency is increased by increasing the filling rate of the beads. Further, it is preferable to remove coarse particles by filtration, centrifugation or the like after the pulverization treatment. In addition, the process and disperser for dispersing pigments are "Dispersion Technology Complete Works, Published by Information Organization Co., Ltd., July 15, 2005" and "Dispersion technology centered on suspension (solid / liquid dispersion system) and industrial. Practical application The process and disperser described in Paragraph No. 0022 of JP-A-2015-157893, "Comprehensive Data Collection, Published by Management Development Center Publishing Department, October 10, 1978" can be preferably used. Further, in the process of dispersing the pigment, the particles may be miniaturized in the salt milling step. For the materials, equipment, processing conditions, etc. used in the salt milling step, for example, the descriptions in JP-A-2015-194521 and JP-A-2012-046629 can be referred to.

In preparing the coloring composition, it is preferable to filter the coloring composition with a filter for the purpose of removing foreign substances and reducing defects. As the filter, any filter that has been conventionally used for filtration or the like can be used without particular limitation. For example, fluororesins such as polytetrafluoroethylene (PTFE), polyamide resins such as nylon (eg, nylon-6, nylon-6,6), and polyolefin resins such as polyethylene and polypropylene (PP) (high density, ultrahigh molecular weight). A filter using a material such as (including a polyolefin resin) can be mentioned. Among these materials, polypropylene (including high-density polypropylene) and nylon are preferable.

The pore size of the filter is preferably 0.01 to 7.0 μm, more preferably 0.01 to 3.0 μm, and even more preferably 0.05 to 0.5 μm. If the pore size of the filter is within the above range, fine foreign matter can be removed more reliably. For the pore size value of the filter, the nominal value of the filter manufacturer can be referred to. As the filter, various filters provided by Nippon Pole Co., Ltd. (DFA4201NIEY, etc.), Advantech Toyo Co., Ltd., Japan Entegris Co., Ltd. (formerly Nippon Microlith Co., Ltd.), KITZ Microfilter Co., Ltd., etc. can be used.

It is also preferable to use a fibrous filter medium as the filter. Examples of the fibrous filter medium include polypropylene fiber, nylon fiber, glass fiber and the like. Examples of commercially available products include SBP type series (SBP008, etc.), TPR type series (TPR002, TPR005, etc.) and SHPX type series (SHPX003, etc.) manufactured by Roki Techno Co., Ltd. When using filters, different filters (eg, first filter and second filter, etc.) may be combined. At that time, the filtration with each filter may be performed only once or twice or more. Further, filters having different pore diameters may be combined within the above-mentioned range. Further, the filtration with the first filter may be performed only on the dispersion liquid, and after mixing the other components, the filtration may be performed with the second filter.

<Membrane>
The film of the present invention is a film obtained from the above-mentioned coloring composition of the present invention. The film of the present invention can be used as a color filter or the like. Specifically, it can be preferably used as a colored pixel of a color filter, and more specifically, it can be preferably used as a red pixel of a color filter. The film thickness of the film of the present invention can be appropriately adjusted according to the intended purpose. For example, the film thickness is preferably 5 μm or less, more preferably 1 μm or less, and even more preferably 0.6 μm or less. The lower limit of the film thickness is preferably 0.1 μm or more, more preferably 0.2 μm or more, and even more preferably 0.3 μm or more.

<Pixel formation method>
Next, a method of forming pixels will be described. The pixel forming method includes a step of applying the coloring composition of the present invention described above on a support to form a coloring composition layer, a step of exposing the coloring composition layer in a pattern, and a coloring composition after exposure. It is preferable to include a step of developing and removing an unexposed portion of the material layer. Hereinafter, each step will be described.

In the step of forming the coloring composition layer, the coloring composition is applied onto the support to form the coloring composition layer. The support is not particularly limited and may be appropriately selected depending on the intended use. For example, a glass substrate, a silicon substrate, and the like can be mentioned, and a silicon substrate is preferable. Further, a charge-coupled device (CCD), a complementary metal oxide semiconductor (CMOS), a transparent conductive film, or the like may be formed on the silicon substrate. In addition, a black matrix that isolates each pixel may be formed on the silicon substrate. Further, the silicon substrate may be provided with a base layer for improving the adhesion with the upper layer, preventing the diffusion of substances, or flattening the surface of the substrate. The surface contact angle of the base layer is preferably 20 to 70 ° when measured with diiodomethane. Further, it is preferably 30 to 80 ° when measured with water. When the surface contact angle of the base layer is within the above range, the coating property of the coloring composition is good. The surface contact angle of the base layer can be adjusted by, for example, adding a surfactant.

As a method for applying the coloring composition, a known method can be used. For example, a dropping method (drop casting); a slit coating method; a spray method; a roll coating method; a spin coating method; a casting method; a slit and spin method; a pre-wet method (for example, JP-A-2009-145395). (For example, on-demand method, piezo method, thermal method), ejection system printing such as nozzle jet, flexographic printing, screen printing, gravure printing, reverse offset printing, metal mask printing, and other printing methods; Transfer method using a mold or the like; nanoimprint method or the like can be mentioned. The method of application to inkjet is not particularly limited, and is, for example, the method shown in "Expandable and usable inkjet-infinite possibilities seen in patents-, published in February 2005, Sumi Betechno Research" (especially from page 115). (Page 133), and the methods described in JP-A-2003-262716, JP-A-2003-185831, JP-A-2003-261827, JP-A-2012-126830, JP-A-2006-169325, and the like. Can be mentioned. Further, regarding the method of applying the coloring composition, the description of International Publication No. 2017/030174 and International Publication No. 2017/018419 can be referred to, and these contents are incorporated in the present specification.

The colored composition layer formed on the support may be dried (prebaked). When the film is produced by a low temperature process, it is not necessary to perform prebaking. When prebaking is performed, the prebaking temperature is preferably 150 ° C. or lower, more preferably 120 ° C. or lower, and even more preferably 110 ° C. or lower. The lower limit can be, for example, 50 ° C. or higher, or 80 ° C. or higher. The prebaking time is preferably 10 to 300 seconds, more preferably 40 to 250 seconds, and even more preferably 80 to 220 seconds. Pre-baking can be performed on a hot plate, an oven, or the like.

Next, the colored composition layer is exposed in a pattern (exposure step). For example, the colored composition layer can be exposed in a pattern by exposing the colored composition layer through a mask having a predetermined mask pattern using a stepper exposure machine, a scanner exposure machine, or the like. As a result, the exposed portion can be cured.

Examples of radiation (light) that can be used for exposure include g-line and i-line. Further, light having a wavelength of 300 nm or less (preferably light having a wavelength of 180 to 300 nm) can also be used. Examples of the light having a wavelength of 300 nm or less include KrF line (wavelength 248 nm) and ArF line (wavelength 193 nm), and KrF line (wavelength 248 nm) is preferable. Further, a long wave light source having a diameter of 300 nm or more can also be used.

Further, at the time of exposure, light may be continuously irradiated for exposure, or pulsed irradiation may be performed for exposure (pulse exposure). The pulse exposure is an exposure method of a method of repeatedly irradiating and pausing light in a cycle of a short time (for example, a millisecond level or less).

Irradiation dose (exposure dose), for example, preferably 0.03 ~ 2.5J / cm ^2, more preferably 0.05 ~ 1.0J / cm ^2. The oxygen concentration at the time of exposure can be appropriately selected, and in addition to the oxygen concentration performed in the atmosphere, for example, in a low oxygen atmosphere having an oxygen concentration of 19% by volume or less (for example, 15% by volume, 5% by volume, or substantially). It may be exposed in an oxygen-free environment) or in a high oxygen atmosphere (for example, 22% by volume, 30% by volume, or 50% by volume) in which the oxygen concentration exceeds 21% by volume. The exposure illuminance can be set as appropriate, and is usually selected from the range of ^{1000 W / m 2} to 100,000 ^{W / m 2} (for example, 5000 W / m ² , 15,000 W / m ² , or 35,000 W / m ^2). Can be done. Oxygen concentration and exposure illuminance may appropriately combined conditions, for example, illuminance 10000 W / ^{m 2} at an oxygen concentration of 10 vol%, oxygen concentration of 35 vol% can be such illuminance 20000W / ^{m 2.}

Next, the unexposed portion of the colored composition layer after exposure is developed and removed (development step). The unexposed portion of the coloring composition layer can be developed and removed using a developing solution. As a result, the colored composition layer in the unexposed portion is eluted in the developing solution, and only the photocured portion remains. The temperature of the developing solution is preferably, for example, 20 to 30 ° C. The development time is preferably 20 to 180 seconds. Further, in order to improve the residue removability, the steps of shaking off the developing solution every 60 seconds and further supplying a new developing solution may be repeated several times.

Examples of the developing solution include organic solvents and alkaline developing solutions, and alkaline developing solutions are preferably used. As the alkaline developer, an alkaline aqueous solution (alkaline developer) obtained by diluting an alkaline agent with pure water is preferable. Examples of the alkaline agent include ammonia, ethylamine, diethylamine, dimethylethanolamine, diglycolamine, diethanolamine, hydroxyamine, ethylenediamine, tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, and tetrabutylammonium hydroxide. , Ethyltrimethylammonium hydroxide, benzyltrimethylammonium hydroxide, dimethylbis (2-hydroxyethyl) ammonium hydroxide, choline, pyrrole, piperidine, 1,8-diazabicyclo- [5.4.0] -7-undecene, etc. Examples thereof include organic alkaline compounds and inorganic alkaline compounds such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogencarbonate, sodium silicate and sodium metasilicate. As the alkaline agent, a compound having a large molecular weight is preferable in terms of environment and safety. The concentration of the alkaline agent in the alkaline aqueous solution is preferably 0.001 to 10% by mass, more preferably 0.01 to 1% by mass. In addition, the developer may further contain a surfactant. The developer may be once produced as a concentrated solution and diluted to a concentration required for use from the viewpoint of convenience of transfer and storage. The dilution ratio is not particularly limited, but can be set in the range of, for example, 1.5 to 100 times. It is also preferable to wash (rinse) with pure water after development. Further, it is preferable that the rinsing is performed by supplying the rinsing liquid to the developed colored composition layer while rotating the support on which the developed colored composition layer is formed. It is also preferable to move the nozzle for discharging the rinse liquid from the central portion of the support to the peripheral edge of the support. At this time, when moving the nozzle from the central portion of the support to the peripheral portion, the nozzle may be moved while gradually reducing the moving speed. By rinsing in this way, in-plane variation of rinsing can be suppressed. Further, the same effect can be obtained by gradually reducing the rotation speed of the support while moving the nozzle from the central portion to the peripheral portion of the support.

It is preferable to perform additional exposure treatment or heat treatment (post-baking) after development and drying. Additional exposure treatment and post-baking are post-development curing treatments to complete the curing. The heating temperature in the post-baking is, for example, preferably 100 to 240 ° C, more preferably 200 to 240 ° C. Post-baking is performed by continuously or batch-type the developed film (pixels) using a heating means such as a hot plate, a convection oven (hot air circulation type dryer), or a high-frequency heater so as to meet the above conditions. be able to. When the additional exposure process is performed, the light used for the exposure is preferably light having a wavelength of 400 nm or less. Further, the additional exposure process may be performed by the method described in Korean Patent Publication No. 10-2017-0122130.

Pixels can be formed in this way.

<Color filter>
Next, the color filter of the present invention will be described. The color filter of the present invention has the above-mentioned film of the present invention. Specifically, it has the film of the present invention as a colored pixel of a color filter.
Further, it is also preferable that the color filter of the present invention has a red pixel, a blue pixel, and a green pixel obtained by using the coloring composition of the present invention described above.
The color filter of the present invention preferably has the film of the present invention as the red pixels of the color filter. The color filter of the present invention can be used for a solid-state image sensor such as a CCD (charge-coupled device) or CMOS (complementary metal oxide semiconductor), an image display device, or the like.

In the color filter of the present invention, the film thickness of the film of the present invention can be appropriately adjusted according to the purpose. The film thickness is preferably 5 μm or less, more preferably 1 μm or less, and even more preferably 0.6 μm or less. The lower limit of the film thickness is preferably 0.1 μm or more, more preferably 0.2 μm or more, and even more preferably 0.3 μm or more.

The width of the pixels included in the color filter is preferably 0.4 to 10.0 μm. The lower limit is preferably 0.4 μm or more, more preferably 0.5 μm or more, and further preferably 0.6 μm or more. The upper limit is preferably 5.0 μm or less, more preferably 2.0 μm or less, further preferably 1.0 μm or less, and even more preferably 0.8 μm or less. The Young's modulus of the pixel is preferably 0.5 to 20 GPa, more preferably 2.5 to 15 GPa.

It is preferable that each pixel included in the color filter has high flatness. Specifically, the surface roughness Ra of the pixel is preferably 100 nm or less, more preferably 40 nm or less, and further preferably 15 nm or less. The lower limit is not specified, but it is preferably 0.1 nm or more, for example. The surface roughness of the pixels can be measured using, for example, an AFM (atomic force microscope) Measurement 3100 manufactured by Veeco. Further, the contact angle of water on the pixel can be appropriately set to a preferable value, but is typically in the range of 50 to 110 °. The contact angle can be measured using, for example, a contact angle meter CV-DT · A type (manufactured by Kyowa Interface Science Co., Ltd.). Further, it is preferable that the volume resistance value of the pixel is high. Specifically, it is preferred that the volume resistivity value of the pixel is 10 ⁹ Ω · cm or more, and more preferably 10 ¹¹ Ω · cm or more. The upper limit is not specified, but ^{it is preferably 10 14} Ω · cm or less, for example. The volume resistance value of the pixel can be measured using, for example, an ultra-high resistance meter 5410 (manufactured by Advantest).

In the color filter, a protective layer may be provided on the surface of the film (pixel) of the present invention. By providing the protective layer, various functions such as oxygen blocking, low reflection, hydrophobicization, and shielding of light of a specific wavelength (ultraviolet rays, near infrared rays, etc.) can be imparted. The thickness of the protective layer is preferably 0.01 to 10 μm, more preferably 0.1 to 5 μm. Examples of the method for forming the protective layer include a method of applying a resin composition dissolved in an organic solvent to form the protective layer, a chemical vapor deposition method, and a method of attaching the molded resin with an adhesive. The components constituting the protective layer include (meth) acrylic resin, en-thiol resin, polycarbonate resin, polyether resin, polyarylate resin, polysulfone resin, polyethersulfone resin, polyphenylene resin, polyarylene ether phosphine oxide resin, and polyimide. Resin, polyamideimide resin, polyolefin resin, cyclic olefin resin, polyester resin, styrene resin, polyol resin, polyvinylidene chloride resin, melamine resin, urethane resin, aramid resin, polyamide resin, alkyd resin, epoxy resin, modified silicone resin, fluorine Examples thereof include resins, polycarbonate resins, polyacrylonitrile resins, cellulose resins, Si, C, W, Al ₂ O ₃ , Mo, SiO ₂ , and Si ₂ N _4, and two or more of these components may be contained. For example, in the case of a protective layer for the purpose of blocking oxygen, the protective layer preferably contains a polyol resin, SiO ₂ , and Si ₂ N ₄ . Further, in the case of a protective layer for the purpose of reducing reflection, the protective layer preferably contains a (meth) acrylic resin and a fluororesin.

When the resin composition is applied to form the protective layer, a known method such as a spin coating method, a casting method, a screen printing method, or an inkjet method can be used as the application method of the resin composition. As the organic solvent contained in the resin composition, a known organic solvent (for example, propylene glycol 1-monomethyl ether 2-acetate, cyclopentanone, ethyl lactate, etc.) can be used. When the protective layer is formed by a chemical vapor deposition method, the chemical vapor deposition method is a known chemical vapor deposition method (thermochemical vapor deposition method, plasma chemical vapor deposition method, photochemical vapor deposition method). Can be used.

The protective layer may be an additive such as organic / inorganic fine particles, an absorber for light of a specific wavelength (for example, ultraviolet rays, near infrared rays, etc.), a refractive index adjuster, an antioxidant, an adhesive, a surfactant, etc., if necessary. May be contained. Examples of organic / inorganic fine particles include polymer fine particles (for example, silicone resin fine particles, polystyrene fine particles, melamine resin fine particles), titanium oxide, zinc oxide, zirconium oxide, indium oxide, aluminum oxide, titanium nitride, and titanium oxynitride. , Magnesium fluoride, hollow silica, silica, calcium carbonate, barium sulfate and the like. A known absorbent can be used as the light absorber of a specific wavelength. The content of these additives can be adjusted as appropriate, but is preferably 0.1 to 70% by mass, more preferably 1 to 60% by mass, based on the total mass of the protective layer.

Further, as the protective layer, the protective layer described in paragraphs 0073 to 0092 of JP-A-2017-151176 can also be used.

The color filter may have a structure in which each pixel is embedded in a space partitioned by a partition wall, for example, in a grid pattern.

<Solid image sensor>
The solid-state image sensor of the present invention has the above-mentioned film of the present invention. The configuration of the solid-state image sensor is not particularly limited as long as it includes the film of the present invention and functions as a solid-state image sensor, and examples thereof include the following configurations.

On the substrate, there are a plurality of photodiodes constituting the light receiving area of a solid-state image sensor (CCD (charge-coupled device) image sensor, CMOS (complementary metal oxide semiconductor) image sensor, etc.) and a transfer electrode made of polysilicon or the like. A device protective film made of silicon nitride or the like formed on the photodiode and the transfer electrode so as to have a light-shielding film in which only the light-receiving part of the photodiode is opened, and to cover the entire surface of the light-shielding film and the light-receiving part of the photodiode. The configuration has a color filter on the device protective film. Further, a configuration having a condensing means (for example, a microlens or the like; the same applies hereinafter) on the device protective film under the color filter (the side closer to the substrate), a configuration having a condensing means on the color filter, and the like. There may be. Further, the color filter may have a structure in which each colored pixel is embedded in a space partitioned by a partition wall, for example, in a grid pattern. In this case, the partition wall preferably has a low refractive index for each colored pixel. Examples of the image pickup apparatus having such a structure include the apparatus described in JP-A-2012-227478, JP-A-2014-179757, and International Publication No. 2018/043654. The image pickup device provided with the solid-state image pickup device of the present invention can be used not only for digital cameras and electronic devices having an image pickup function (mobile phones and the like), but also for in-vehicle cameras and surveillance cameras.

<Image display device>
The image display device of the present invention has the above-mentioned film of the present invention. Examples of the image display device include a liquid crystal display device and an organic electroluminescence display device. For details on the definition of image display devices and the details of each image display device, see, for example, "Electronic Display Device (Akio Sasaki, Industrial Research Council, 1990)", "Display Device (Junaki Ibuki, Industrial Books)" Co., Ltd. (issued in 1989) ”. Further, the liquid crystal display device is described in, for example, "Next Generation Liquid Crystal Display Technology (edited by Tatsuo Uchida, Kogyo Chosakai Co., Ltd., published in 1994)". The liquid crystal display device to which the present invention can be applied is not particularly limited, and for example, it can be applied to various types of liquid crystal display devices described in the above-mentioned "next-generation liquid crystal display technology".

The present invention will be described in more detail with reference to examples below. The materials, amounts used, ratios, treatment contents, treatment procedures, etc. shown in the following examples can be appropriately changed as long as they do not deviate from the gist of the present invention. Therefore, the scope of the present invention is not limited to the specific examples shown below.

<Manufacturing of dispersion>
After mixing the materials (pigments, pigment derivatives, resins, solvents) listed in the table below, 230 parts by mass of zirconia beads with a diameter of 0.3 mm are added, and dispersion treatment is performed for 5 hours using a paint shaker to obtain beads. The dispersion was produced by separating by filtration. The numerical value of the blending amount of each material in the table below is a mass part. The value of the blending amount of the resin (dispersant) is the value of the blending amount in the resin solution having a solid content of 20% by mass.

The materials listed in the above table are as follows.
(Pigment)
^{[Pigment DPP having a structure in which the aromatic ring group Ar D1} in which an electron donating group is introduced into the aromatic ring is bonded to the diketopyrrolopyrrole skeleton]
Pigment R1: A compound having a structure represented by the following formula (R1) (CI Pigment Red 272)
Pigment R2: A compound having a structure represented by the following formula (R2) Pigment R3: A compound having a structure represented by the following formula (R3) Pigment R4: A compound having a structure represented by the following formula (R4) Pigment R5: A compound having a structure represented by the following formula (R4) Compound with structure represented by (R5) Pigment R6: Compound with structure represented by the following formula (R6) Pigment R7: Compound with structure represented by the following formula (R7) Pigment R8: Table with the following formula (R8) Pigment R9: Compound having a structure represented by the following formula (R9) Pigment R10: Compound having a structure represented by the following formula (R10) (CI Pigment Red 264)

[Pigments other than DPP]
PR254: Color Index Pigment Red 254
PY139: Color Index Pigment Yellow 139
PO71: Color Index Pigment Orange 71

(Pigment derivative)
Derivative 1: Compound with the following structure

Derivative 2: Compound with the following structure

Derivative 3: Compound with the following structure

Derivative 4: Compound with the following structure

Derivative 5: Compound with the following structure

(resin)
A-1: 20% by mass of the resin having the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Weight average molecular weight 24000, acid value 47 mgKOH / g). Propropylene glycol monomethyl ether acetate (PGMEA) solution

A-2: 20% by mass of the resin having the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Weight average molecular weight 16000, acid value 67 mgKOH / g). PGMEA solution

B-1: A resin solution of resin B-1 synthesized by the following method (solid content concentration 20% by mass).
50 parts by mass of methyl methacrylate, 50 parts by mass of n-butyl methacrylate, and 45.4 parts by mass of PGMEA (propylene glycol monomethyl ether acetate) were charged into the reaction vessel, and the atmosphere gas was replaced with nitrogen gas. The inside of the reaction vessel is heated to 70 ° C., 6 parts by mass of 3-mercapto-1,2-propanediol is added, and 0.12 parts by mass of AIBN (azobisisobutyronitrile) is further added, and the reaction is carried out for 12 hours. I let you. It was confirmed by solid content measurement that 95% had reacted. Next, 9.7 parts by mass of pyromellitic anhydride, 70.3 parts by mass of PGMEA, and 0.20 parts by mass of DBU (1,8-diazabicyclo- [5.4.0] -7-undecene) were added as a catalyst. , 120 ° C. for 7 hours. By measuring the acid value, it was confirmed that 98% or more of the acid anhydride was half-esterified, and the reaction was terminated. PGMEA was added to adjust the non-volatile content (solid content concentration) to 20% by mass to obtain a resin solution of resin B-1 having an acid value of 43 mgKOH / g and a weight average molecular weight of 9000 and having the following structure.

B-2: A resin solution of resin B-2 synthesized by the following method (solid content concentration 20% by mass).
50 parts by mass of methyl methacrylate, 30 parts by mass of n-butyl methacrylate, 20 parts by mass of t-butyl methacrylate, and 45.4 parts by mass of PGMEA were charged into the reaction vessel, and the atmosphere gas was replaced with nitrogen gas. The inside of the reaction vessel is heated to 70 ° C., 6 parts by mass of 3-mercapto-1,2-propanediol is added, and 0.12 parts by mass of AIBN (azobisisobutyronitrile) is further added, and the reaction is carried out for 12 hours. I let you. It was confirmed by solid content measurement that 95% had reacted. Next, 9.7 parts by mass of pyromellitic anhydride, 70.3 parts by mass of PGMEA, and 0.20 parts by mass of DBU (1,8-diazabicyclo- [5.4.0] -7-undecene) were added as a catalyst. , 120 ° C. for 7 hours. By measuring the acid value, it was confirmed that 98% or more of the acid anhydride was half-esterified, and the reaction was terminated. PGMEA was added to adjust the non-volatile content (solid content concentration) to 20% by mass to obtain a resin solution of resin B-2 having an acid value of 43 mgKOH / g and a weight average molecular weight of 9000 and having the following structure.

B-3: A resin solution of resin B-3 synthesized by the following method (solid content concentration 20% by mass).
In the synthesis of resin B-2, the acid value was 43 mgKOH / g and the weight average molecular weight was the same except that 20 parts by mass of t-butyl methacrylate was changed to 20 parts by mass of (3-ethyloxetane-3-yl) methyl methacrylate. A resin solution of 9000 resin B-3 having the following structure was obtained.

B-4: A resin solution of the resin B-4 synthesized by the following method (solid content concentration 20% by mass).
In the synthesis of resin B-2, the acid value was 43 mgKOH / g and the weight average molecular weight was 9000. A resin solution of structural resin B-4 was obtained.

B-5: A resin solution of resin B-5 synthesized by the following method (solid content concentration 20% by mass).
3-Mercapto-1,2-propanediol 6.0 parts by mass, pyromellitic anhydride 9.5 parts by mass, PGMEA 62 parts by mass, 1,8-diazabicyclo- [5.4.0] -7-undecene 0. Two parts by mass were charged into the reaction vessel, and the atmospheric gas was replaced with nitrogen gas. The inside of the reaction vessel was heated to 100 ° C. and reacted for 7 hours. After confirming that 98% or more of the acid anhydride was half-esterified by measuring the acid value, the temperature in the system was cooled to 70 ° C., 65 parts by mass of methyl methacrylate, 5.0 parts by mass of ethyl acrylate, and t. -Add 53.5 parts by mass of PGMEA solution in which 15 parts by mass of butyl acrylate, 5.0 parts by mass of methacrylic acid, 10 parts by mass of hydroxyethyl methacrylate and 0.1 parts by mass of 2,2'-azobisisobutyronitrile are dissolved. Then, it was reacted for 10 hours. The solid content measurement confirmed that the polymerization had proceeded by 95%, and the reaction was terminated. PGMEA was added to adjust the non-volatile content (solid content concentration) to 20% by mass to obtain a resin solution of resin B-5 having an acid value of 70.5 mgKOH / g and a weight average molecular weight of 10000 and having the following structure.

B-6: A resin solution of resin B-6 synthesized by the following method (solid content concentration 20% by mass).
108 parts by mass of 1-thioglycerol, 174 parts by mass of pyromellitic anhydride, 650 parts by mass of methoxypropyl acetate, and 0.2 parts by mass of monobutyltin oxide as a catalyst were charged in a reaction vessel, and the atmosphere gas was replaced with nitrogen gas. The reaction was carried out at 120 ° C. for 5 hours (first step). It was confirmed by measuring the acid value that 95% or more of the acid anhydride was half-esterified. Next, the compound obtained in the first step is 160 parts by mass in terms of solid content, 200 parts by mass of 2-hydroxypropyl methacrylate, 200 parts by mass of ethyl acrylate, 150 parts by mass of t-butyl acrylate, and 200 parts by mass of 2-methoxyethyl acrylate. Parts, 200 parts by mass of methyl acrylate, 50 parts by mass of methacrylic acid, and 663 parts by mass of PGMEA were charged into the reaction vessel, and the inside of the reaction vessel was heated to 80 ° C. to 2,2'-azobis (2,4-dimethylvaleronitrile) 1 .2 parts by mass was added and reacted for 12 hours (second step). It was confirmed by solid content measurement that 95% had reacted. Finally, 500 parts by mass of a 50% by mass PGMEA solution of the compound obtained in the second step, 27.0 parts by mass of 2-methacryloyloxyethyl isocyanate (MOI), and 0.1 part by mass of hydroquinone were charged into the reaction vessel to form an isocyanate group. The reaction was carried out until the disappearance of the peak of ^{2270 cm -1} based on the above was confirmed (third step). After confirming the disappearance of the peak, the reaction solution was cooled, PGMEA was added to adjust the non-volatile content (solid content concentration) to 20% by mass, the acid value was 68 mgKOH / g, and the unsaturated double bond value was 0.62 mmol / g. A resin solution of resin B-6 having the following structure having a weight average molecular weight of 13000 was obtained.

B-7: A resin solution of resin B-7 synthesized by the following method (solid content concentration 20% by mass).
40 parts by mass of methyl methacrylate, 60 parts by mass of n-butyl methacrylate, and 45.4 parts by mass of PGMEA (propylene glycol monomethyl ether acetate) were charged into the reaction vessel, and the atmosphere gas was replaced with nitrogen gas. The inside of the reaction vessel is heated to 70 ° C., 8 parts by mass of 3-mercapto-1,2-propanediol is added, and 0.12 parts by mass of AIBN (azobisisobutyronitrile) is further added, and the reaction is carried out for 12 hours. I let you. It was confirmed by solid content measurement that 95% had reacted. Next, 13 parts by mass of pyromellitic anhydride, 70.3 parts by mass of PGMEA, and 0.20 parts by mass of DBU (1,8-diazabicyclo- [5.4.0] -7-undecene) as a catalyst were added, and 120 parts were added. The reaction was carried out at ° C. for 7 hours. By measuring the acid value, it was confirmed that 98% or more of the acid anhydride was half-esterified, and the reaction was terminated. PGMEA was added to adjust the non-volatile content (solid content concentration) to 20% by mass to obtain a resin solution of resin B-7 having an acid value of 55 mgKOH / g and a weight average molecular weight of 10000 and having the following structure.

C-1: PGMEA solution of DISPERBYK-2001 (resin having a basic group, amine value 29 mgKOH / g, manufactured by Big Chemie Japan) with a solid content concentration of 20% by mass C-2: Resin having the following structure (additional note to the main chain) The value obtained is the mass ratio. A 20% by mass PGMEA solution having an amine value of 71 mgKOH / g and a weight average molecular weight of 9900).

C-3: PGMEA solution of 20% by mass of the resin having the following structure (the numerical value added to the main chain is the mass ratio. Amin value 80 mgKOH / g, weight average molecular weight 8500)

(solvent)
K-1: Propylene glycol monomethyl ether acetate (PGMEA)

<Manufacturing of coloring composition>
The materials listed in the table below were mixed to prepare a colored composition. The value of the blending amount of the resin is the value of the blending amount in the resin solution having a solid content of 20% by mass.

The materials listed in the above table are as follows.

(Dispersion)
Dispersions R1 to R39: Dispersions R1 to R39 described above

(resin)
A-3: A 20% by mass PGMEA solution of a resin having the following structure (the numerical value added to the main chain is the molar ratio. Weight average molecular weight 11000, acid value 69 mgKOH / g)

A-4: A 20% by mass PGMEA solution of a resin having the following structure (the numerical value added to the main chain is the molar ratio. Weight average molecular weight 13000).

(Polymerizable compound)
E-1: Dipentaerythritol hexaacrylate E-2: Trimethylolpropane Ethyleneoxy-modified triacrylate (manufactured by Toagosei Co., Ltd., Aronix M-350)
E-3: Trimethylolpropane triacrylate (manufactured by Toagosei Co., Ltd., Aronix M-309)
E-4: Urethane acrylate (manufactured by Shin Nakamura Chemical Industry Co., Ltd., U-6LPA)

(Photopolymerization initiator)
[Oxime compound OX having ^{an aromatic ring group Ar OX1 in} which an electron-attracting group is introduced into the aromatic ring]
G-1 to G-4: Compounds with the following structures

[Photopolymerization initiators other than oxime compound OX]
G-c1: Compound with the following structure (oxime-based photopolymerization initiator)

G-c2: Compound with the following structure (benzophenone-based photopolymerization initiator)

G-c3: Irgacure OXE02 (BASF, oxime-based photopolymerization initiator)

(Additive)
H-1: Compound with the following structure (ultraviolet absorber)

(Surfactant)
I-1: A 1% by mass PGMEA solution of a compound having the following structure (weight average molecular weight 14000). In the formula below,% indicating the ratio of the repeating unit is mol%.

(Polymerization inhibitor)
J-1: p-methoxyphenol

(solvent)
K-1: Propylene glycol monomethyl ether acetate (PGMEA)
K-2: Propylene glycol monomethyl ether (PGME)

<Performance evaluation of coloring composition>
(Light resistance)
The coloring composition was applied onto a glass substrate by a spin coating method, then heat-treated (prebaked) at 100 ° C. for 120 seconds using a hot plate, and then exposed with an i-line at an exposure amount of ^{1000 mj / cm 2.} Then, it was heated at 200 ° C. for 5 minutes to prepare a film having a thickness of 0.6 μm. With respect to the obtained film, the light transmittance (transmittance) in the wavelength range of 400 to 700 nm was measured using MCPD-3000 manufactured by Otsuka Electronics Co., Ltd. Next, the film prepared above was irradiated with light of 100,000 Lux over 1000 hours using a light resistance tester (Super Xenon Weather Meter SX75, manufactured by Suga Test Instruments Co., Ltd.) (total irradiation amount 100 million Lux · hr). ). The transmittance of the film after light irradiation was measured, and the light resistance was evaluated according to the following criteria. A to C are in the range where there is no problem in use.
A: The integrated value of the transmittance of the film after light irradiation at a wavelength of 400 to 700 nm is 99% or more of the integrated value of the transmittance of the film before light irradiation at a wavelength of 400 to 700 nm.
B: The integrated value of the transmittance of the film after light irradiation at a wavelength of 400 to 700 nm is 97% or more and less than 99% of the integrated value of the transmittance of the film before light irradiation at a wavelength of 400 to 700 nm.
C: The integrated value of the transmittance of the film after light irradiation at a wavelength of 400 to 700 nm is 95% or more and less than 97% of the integrated value of the transmittance of the film before light irradiation at a wavelength of 400 to 700 nm.
D: The integrated value of the transmittance of the film after light irradiation at a wavelength of 400 to 700 nm is less than 95% of the integrated value of the transmittance of the film before light irradiation at a wavelength of 400 to 700 nm.

(Adhesion)
CT-4000 (manufactured by FUJIFILM Electronics Materials Co., Ltd.) is applied on a silicon wafer with a diameter of 8 inches (= 203.2 mm) by a spin coating method so that the film thickness is 0.1 μm, and a hot plate is used. The underlayer was formed by heating at 220 ° C. for 1 hour. Each colored composition was applied onto the silicon wafer with a base layer by a spin coating method, and then heated at 100 ° C. for 2 minutes using a hot plate to obtain a composition layer having a film thickness of 0.5 μm. For this composition layer, an i-line stepper FPA-3000i5 + (manufactured by Canon Inc.) was used, and square pixels having a side of 1.1 μm were arranged in a 4 mm × 3 mm region on the substrate via a mask pattern. Then, light having a wavelength of 365 nm was irradiated with an exposure amount of ^{500 mJ / cm 2 for exposure.} The composition layer after exposure was paddle-developed at 23 ° C. for 60 seconds using a 0.3% by mass aqueous solution of tetramethylammonium hydroxide. Then, it was rinsed with water in a spin shower, and further washed with pure water. Then, water droplets were blown off with high-pressure air, the silicon wafer was naturally dried, and then post-baked at 220 ° C. for 300 seconds using a hot plate to form pixels. The obtained pixels were observed using an optical microscope, and the number of pixels in close contact with each other was counted to evaluate the adhesion. A to C are in the range where there is no problem in use.
A: All pixels are in close contact.
B: The number of pixels in close contact is 98% or more and less than 100% of all the pixels.
C: The number of pixels in close contact is 95% or more and less than 98% of all the pixels.
D: The number of pixels in close contact is less than 95% of all pixels.

(Foreign matter)
The coloring composition was applied onto a glass substrate by a spin coating method, then heat-treated (prebaked) at 100 ° C. for 120 seconds using a hot plate, and then exposed with an i-line at an exposure amount of ^{1000 mj / cm 2.} Then, it was heated at 200 ° C. for 5 minutes to prepare a film having a thickness of 0.6 μm.
The obtained film was further heat-treated at 230 ° C. for 30 minutes, at 245 ° C. for 30 minutes, and at 260 ° C. for 30 minutes, respectively. The film after the heat treatment was observed with an optical microscope, and the presence or absence of crystal precipitation was determined according to the following criteria. A to C are in the range where there is no problem in use.
A: No crystal precipitation occurred after any of the heat treatments at 230 ° C. for 30 minutes, 245 ° C. for 30 minutes, and 260 ° C. for 30 minutes.
B: No crystals were precipitated by heat treatment at 230 ° C. for 30 minutes and at 245 ° C. for 30 minutes, but crystals were precipitated by heat treatment at 260 ° C. for 30 minutes.
C: No crystals were precipitated by heat treatment at 230 ° C. for 30 minutes, but crystals were precipitated by heat treatment at 245 ° C. for 30 minutes.
D: Crystals were precipitated by heat treatment at 230 ° C. for 30 minutes.

(Spectroscopic characteristics)
The coloring composition was applied onto a glass substrate by a spin coating method, then heat-treated (prebaked) at 100 ° C. for 120 seconds using a hot plate, and then exposed with an i-line at an exposure amount of ^{1000 mj / cm 2.} Then, it was heated at 200 ° C. for 5 minutes to prepare a film having a thickness of 0.6 μm. With respect to the obtained film, the light transmittance (transmittance) in the range of 400 to 700 nm was measured using MCPD-3000 manufactured by Otsuka Electronics Co., Ltd. When the average value of the transmittance at 400 to 500 nm was T1, the average value of the transmittance at 500 to 550 nm was T2, and the 50% transmittance was λ50, the spectral characteristics as red were determined based on the following criteria. The case where all three items are satisfied is A, the case where only two items are satisfied is B, the case where only one item is satisfied is C, and the case where none of them is satisfied is D.
-T1 is 5% or less.
-T2 is 5% or less.
Λ50 is in the range of 530 to 590 nm.

As shown in the above table, the examples were excellent in the evaluation of light resistance, adhesion and foreign matter. On the other hand, the comparative example was inferior to the example in any of light resistance, adhesion and foreign matter.
Further, the films obtained from the coloring compositions of Examples R1 to R62 had a high red color value and had preferable spectral characteristics as red colored pixels of the color filter.

(Example 1001)
The green coloring composition was applied onto the silicon wafer by a spin coating method so that the film thickness after film formation was 1.0 μm. Then, using a hot plate, it was heated at 100 ° C. for 2 minutes. Next, using an i-line stepper exposure apparatus FPA-3000i5 + (manufactured by Canon Inc.) ^{, exposure was performed with an exposure amount of 1000 mJ / cm 2} through a mask with a dot pattern of 2 μm square. Then, paddle development was carried out at 23 ° C. for 60 seconds using a 0.3% by mass aqueous solution of tetramethylammonium hydroxide (TMAH). Then, it was rinsed with a spin shower and then washed with pure water. Then, the green coloring composition was patterned to form green pixels by heating at 200 ° C. for 5 minutes using a hot plate. Similarly, the red coloring composition and the blue coloring composition were patterned by the same process to sequentially form red pixels and blue pixels to form a color filter having green pixels, red pixels and blue pixels. In this color filter, green pixels are formed in a Bayer pattern, and red pixels and blue pixels are formed in an island pattern in an adjacent region thereof. The obtained color filter was incorporated into a solid-state image sensor according to a known method. This solid-state image sensor had a suitable image recognition ability. As the red coloring composition, the coloring composition of Example R1 was used. The green coloring composition and the blue coloring composition will be described later.

(Preparation of green coloring composition)
The following components were mixed, stirred, and then filtered through a nylon filter (manufactured by Nippon Pole Co., Ltd.) having a pore size of 0.45 μm to prepare a green coloring composition.
Green pigment dispersion: 73.7 parts by mass Resin 101: 0.3 parts by mass Polymerizable compound 101: 1.2 parts by mass Photopolymerization initiator 101: 0.6 parts by mass Surfactant 101: 4.2 parts by mass PGMEA : 19.5 parts by mass

(Preparation of blue coloring composition)
The following components were mixed, stirred, and then filtered through a nylon filter (manufactured by Nippon Pole Co., Ltd.) having a pore size of 0.45 μm to prepare a blue coloring composition.
Blue pigment dispersion: 44.9 parts by mass Resin 101: 2.1 parts by mass Polymerizable compound 101: 1.5 parts by mass Polymerized compound 102: 0.7 parts by mass Photopolymerization initiator 101: 0.8 parts by mass Interface Activator 101: 4.2 parts by mass PGMEA: 45.8 parts by mass

The materials used to prepare the green coloring composition and the blue coloring composition are as follows.

Green pigment dispersion C. I. Pigment Green 36 at 6.4 parts by mass, C.I. I. Pigment Yellow 150 is 5.3 parts by mass, dispersant (Disperbyk-161, manufactured by BYK Chemie) is 5.2 parts by mass, and PGMEA is 83.1 parts by mass. To prepare a pigment dispersion liquid by mixing and dispersing for 3 hours. After that, a high-pressure disperser with a decompression mechanism NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) was used to perform a dispersion treatment at a flow rate of 500 g / min under a pressure of ^{2000 kg / cm 3.} This dispersion treatment was repeated 10 times to obtain a green pigment dispersion liquid.

Blue pigment dispersion C. I. Pigment Blue 15: 6 at 9.7 parts by mass, C.I. I. A mixed solution consisting of 2.4 parts by mass of Pigment Violet 23, 5.5 parts by mass of a dispersant (Disperbyk-161, manufactured by BYK Chemie), and 82.4 parts by mass of PGMEA is used in a bead mill (zirconia beads 0.3 mm diameter). Was mixed and dispersed for 3 hours. After that, a high-pressure disperser with a decompression mechanism NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) was used ^{to perform a dispersion treatment under a pressure of 2000 kg / cm 3} at a flow rate of 500 g / min. This dispersion treatment was repeated 10 times to obtain a blue pigment dispersion liquid.

Polymerizable compound 101: KAYARAD DPHA (manufactured by Nippon Kayaku Co., Ltd.)
Polymerizable compound 102: A compound having the following structure

Resin 101: Resin having the following structure (weight average molecular weight 11000, the numerical value added to the main chain is the molar ratio).

Photopolymerization initiator 101: Irgacure OXE01 (manufactured by BASF)

Surfactant 101: A 1% by mass PGMEA solution of a compound having the following structure (weight average molecular weight 14000,% value indicating the ratio of repeating units is mol%).

Claims

A coloring composition containing a coloring material containing a pigment, a photopolymerization initiator, a polymerizable compound, and a resin.
The pigment comprises a pigment DPP having a structure in which an aromatic ring group Ar D1 having an electron donating group introduced into an aromatic ring is bonded to a diketopyrrolopyrrole skeleton.
The photopolymerization initiator contains an oxime compound OX having an aromatic ring group Ar OX1 in which an electron-attracting group is introduced into the aromatic ring.
Coloring composition.
The coloring composition according to claim 1, wherein the electron-attracting group contained in the aromatic ring group Ar OX1 is at least one selected from an acyl group and a nitro group.
The coloring composition according to claim 1, wherein the electron-attracting group contained in the aromatic ring group Ar OX1 is an acyl group.
The coloring composition according to any one of claims 1 to 3, wherein the aromatic ring group Ar OX1 is a group represented by the formula (OR-1);

Wherein, R OX1 represents a substituent, R OX2 represents an electron-withdrawing group, n represents an integer of 0 to 4, the wavy line represents a bond.
The oxime compound OX has at least one group selected from the group represented by the formula (OR-11) and the group represented by the formula (OR-12), any one of claims 1 to 4. The coloring composition according to

In the formula, ROX11 is an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group. Represents a group, an arylsulfonyl group, an acyl group, an acyloxy group, an amino group, a phosphinoyl group, a carbamoyl group or a sulfamoyl group.
ROX12 contains an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group and an aryl. Represents a sulfonyl group, an acyloxy group or an amino group
The wavy line represents the bond.
The coloring composition according to any one of claims 1 to 5, wherein the oxime compound OX is at least one selected from the compound represented by the formula (OX1) and the compound represented by the formula (OX2). ;

In the formula, RX1 is an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group. Represents a group, an arylsulfonyl group, an acyl group, an acyloxy group, an amino group, a phosphinoyl group, a carbamoyl group or a sulfamoyl group.
RX2 is an alkyl group, an alkenyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a heterocyclic oxy group, an alkylsulfanyl group, an arylsulfanyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group and an aryl. Represents a sulfonyl group, an acyloxy group or an amino group
R X3 ~ R X14 represents a hydrogen atom or a substituent independently;
Provided that at least one of R X10 ~ R X14 is an electron withdrawing group.
The electron-donating group of the aromatic ring group Ar D1 is at least one selected from a hydroxy group, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group and an amino group, claims 1 to 6. The coloring composition according to any one of the above items.
The coloring composition according to any one of claims 1 to 7, wherein the aromatic ring group Ar D1 is a group represented by the formula (AR-1);

Wherein, R D1 represents a substituent, R D2 represents an electron donating group, n represents an integer of 0 to 4, the wavy line represents a bond to diketopyrrolopyrrole backbone.
The coloring composition according to any one of claims 1 to 8, wherein the pigment DPP is a compound represented by the formula (DPP1);

In the formula, R D11 and R D12 each independently represent a substituent and represent a substituent.
R D21 and R D22 each independently represent an electron donating group.
n11 and n12 each independently represent an integer of 0 to 4.
The coloring composition according to any one of claims 1 to 9, wherein the pigment DPP contains at least one selected from Color Index Pigment Red 264 and Color Index Pigment Red 272.
The coloring composition according to any one of claims 1 to 10, wherein the content of the coloring material in the total solid content of the coloring composition is 50% by mass or more.
The coloring composition according to any one of claims 1 to 11, which is used for a solid-state image sensor.
The coloring composition according to any one of claims 1 to 12, which is used for a color filter.
A film obtained by using the coloring composition according to any one of claims 1 to 13.
A color filter having the film according to claim 14.
A solid-state image sensor having the film according to claim 14.
An image display device having the film according to claim 14.