JP7376609B2 - Colored compositions, cured films, structures, color filters and display devices - Google Patents

Description

The present invention relates to a colored composition. More specifically, the present invention relates to a coloring composition used for forming green pixels of color filters. The present invention also relates to a cured film, a structure, a color filter, and a display device using the colored composition.

Color filters are commonly used in various display devices to colorize displayed images. Furthermore, in color filters, attempts have been made to adjust the spectra by using a plurality of pigments in combination.

A coloring composition for forming green pixels of a color filter contains a green colorant as a colorant. For example, in Examples 1 to 7 of Patent Document 1, a coloring composition containing a coloring agent containing Color Index Pigment Green 7 and Color Index Pigment Yellow 150, a polymerizable compound, and a photopolymerization initiator is used to produce a green color. It is described that pixels are formed.

Japanese Patent Application Publication No. 2014-041341

Colored compositions using colorants containing pigments tend to increase in viscosity over time, and further improvement in storage stability is desired.

In addition, color filters are desired to have high color separation properties and excellent light resistance. In recent years, these properties have been required at a higher level.

The present inventor investigated the coloring composition described in Patent Document 1 and found that further improvements could be made regarding the storage stability of the coloring composition, the light resistance of the resulting cured film, and the color separation from other colors. It turns out there's room.

Therefore, an object of the present invention is to provide a colored composition that can form a cured film that has good storage stability and excellent light resistance and color separation from other colors. Another object of the present invention is to provide a cured film, a structure, a color filter, and a display device using the above-mentioned colored composition.

According to the studies of the present inventors, it has been found that the above object can be achieved by using the coloring composition described below, and the present invention has been completed. The present invention provides the following.
<1> A colored composition containing a coloring agent, a polymerizable compound, and a photopolymerization initiator,
The coloring agent includes a green coloring agent containing 1% by mass or more of Color Index Pigment Green 7, a yellow coloring agent containing Color Index Pigment Yellow 150, and a green coloring agent other than Color Index Pigment Green 7 and a color index Pigment Yellow 150 has a mass ratio of green colorant other than Color Index Pigment Green 7: Color Index Pigment Yellow 150 = 0:100 to 18:82,
The coloring composition has an absorbance of 0.2 in a wavelength range of 550 nm or more and 600 nm or less, when the absorbance for light with a wavelength of 450 nm is 1.
Colored composition.
<2> The colored composition according to <1>, wherein the colored composition has a minimum value of absorbance in a wavelength range of 495 nm or more and less than 550 nm among absorbances for light with a wavelength of 400 to 700 nm.
<3> The above-mentioned coloring composition exists in a wavelength range of 470 nm or more and 490 nm or less and a wavelength range of 550 nm or more and 600 nm or less, where the absorbance is 0.2 when the absorbance for light with a wavelength of 450 nm is 1. The colored composition according to <1> or <2>.
<4> The colored composition according to any one of <1> to <3>, wherein the total amount of Color Index Pigment Green 7 and Color Index Pigment Yellow 150 in the colorant is 80% by mass or more.
<5> The colored composition according to any one of <1> to <4>, wherein the green coloring agent other than Color Index Pigment Green 7 includes Color Index Pigment Green 36.
<6> The colored composition according to any one of <1> to <5>, wherein the yellow colorant is substantially only Color Index Pigment Yellow 150.
<7> The colored composition according to any one of <1> to <6>, wherein the green colorant is substantially only Color Index Pigment Green 7.
<8> The colored composition according to any one of <1> to <7>, which contains 50 to 240 parts by mass of Color Index Pigment Yellow 150 per 100 parts by mass of Color Index Pigment Green 7.
<9> The colored composition according to any one of <1> to <8>, wherein the content of the coloring agent in the total solid content of the colored composition is 20% by mass or more.
<10> The colored composition according to any one of <1> to <9>, wherein the polymerizable compound includes a polymerizable compound having three or more ethylenically unsaturated bond-containing groups.
<11> The colored composition according to any one of <1> to <10>, wherein the polymerizable compound includes a polymerizable compound having an ethylenically unsaturated bond-containing group and an alkyleneoxy group.
<12> The colored composition according to any one of <1> to <11>, wherein the photopolymerization initiator contains an oxime compound.
<13> The colored composition according to any one of <1> to <12>, wherein the photopolymerization initiator contains an oxime compound and a hydroxyalkylphenone compound.
<14> The colored composition according to any one of <1> to <13>, which is a colored composition for forming green pixels of a color filter.
<15> The colored composition according to any one of <1> to <14>, which is a colored composition for a display device.
<16> The colored composition according to any one of <1> to <15>, which is used to form a cured film at a temperature of 150° C. or lower throughout the entire process.
<17> A cured film obtained using the colored composition according to any one of <1> to <16>.
<18> A structure having a green pixel, a red pixel, and a blue pixel, wherein the green pixel is obtained using the colored composition according to any one of <1> to <16>. ,Structure.
<19> A color filter having the cured film according to <17>.
<20> A display device having the cured film according to <17>.

According to the present invention, it is possible to provide a colored composition that has good storage stability and can form a cured film that has excellent light resistance and color separation from other colors. Further, the present invention can provide a cured film, a structure, a color filter, and a display device using the colored composition.

The content of the present invention will be explained in detail below.
In the description of groups (atomic groups) in this specification, the descriptions that do not indicate substituted or unsubstituted include groups with no substituents (atomic groups) as well as groups with substituents (atomic groups). It is. For example, the term "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 this specification, "exposure" includes not only exposure using light but also drawing using particle beams such as electron beams and ion beams, unless otherwise specified. Furthermore, the light used for exposure generally includes actinic rays or radiation such as the bright line spectrum of a mercury lamp, far ultraviolet rays typified by excimer lasers, extreme ultraviolet rays (EUV light), X-rays, and electron beams.
In this specification, a numerical range expressed using "~" means a range that includes the numerical values written before and after "~" as lower and upper limits.
In this specification, the total solid content refers to the total mass of all components of the composition excluding the solvent.
In the present specification, "(meth)acrylate" represents acrylate and/or methacrylate, "(meth)acrylic" represents both acrylic and/or methacrylic, and "(meth)acrylate" represents acrylic and/or methacrylate. ) Allyl" represents allyl and/or methallyl, and "(meth)acryloyl" represents both acryloyl and methacryloyl, or either one.
In this specification, the term "process" is used not only to refer to an independent process, but also to include any process that achieves the intended effect even if it cannot be clearly distinguished from other processes. .
In this specification, weight average molecular weight (Mw) and number average molecular weight (Mn) are defined as polystyrene equivalent values measured by gel permeation chromatography (GPC).

<Colored composition>
The colored composition of the present invention is a colored composition containing a coloring agent, a polymerizable compound, and a photopolymerization initiator,
The coloring agent includes a green coloring agent containing 1% by mass or more of Color Index Pigment Green 7, a yellow coloring agent containing Color Index Pigment Yellow 150, and a green coloring agent other than Color Index Pigment Green 7 and a color index Pigment Yellow 150 has a mass ratio of green colorant other than Color Index Pigment Green 7: Color Index Pigment Yellow 150 = 0:100 to 18:82,
The coloring composition is characterized in that, when the absorbance for light with a wavelength of 450 nm is 1, the wavelength at which the absorbance is 0.2 exists in a wavelength range of 550 nm or more and 600 nm or less.

The colored composition of the present invention contains a green coloring agent containing 1% by mass or more of Color Index Pigment Green 7 as a coloring agent, and a yellow coloring agent containing Color Index Pigment Yellow 150, and a coloring agent other than Color Index Pigment Green 7. By using a green colorant and Color Index Pigment Yellow 150 in a mass ratio of green colorant other than Color Index Pigment Green 7:Color Index Pigment Yellow 150 = 0:100 to 18:82, storage stability is achieved. A cured film with good properties and excellent light resistance can be formed. The detailed reason for this effect is unknown, but it is because by combining these pigments, the excitation energy levels of the pigments become closer, making it difficult for energy transfer from the yellow pigment to the green pigment. It is assumed that there is.
By satisfying the above-mentioned predetermined absorbance characteristics, this colored composition forms a cured film suitable for green pixels, etc., which has spectral characteristics with excellent color separation from other colors such as red and blue. can do.

Absorbance Aλ at a certain wavelength λ is defined by the following formula (Ab1).
Aλ=-log(Tλ/100) ...(Ab1)
Aλ is the absorbance at the wavelength λ, and Tλ is the transmittance (%) at the wavelength λ.

In the present invention, the absorbance value may be a value measured in a solution state, or a value of a cured film formed using the colored composition. When measuring absorbance in the form of a film, the colored composition is applied onto a glass substrate by a method such as spin coating, dried at 100° C. for 2 minutes using a hot plate, etc., and then at a light illuminance of 20 mW/cm ² . It is preferable to measure using a film (cured film) obtained by exposing to i-ray at an exposure dose of 1 J/cm ² , then heating on a hot plate at 100°C for 20 minutes, and cooling to room temperature. . Absorbance can be measured using a conventionally known spectrophotometer.

In the colored composition of the present invention, when the absorbance for light with a wavelength of 450 nm is 1, the wavelength at which the absorbance is 0.2 exists in a wavelength range of 550 nm or more and 600 nm or less. The coloring composition of the present invention has a wavelength range of 470 nm or more and 490 nm or less and a wavelength range of 550 nm or more and 600 nm or less at which the absorbance is 0.2 when the absorbance for light with a wavelength of 450 nm is 1. It is preferable.

The wavelength on the short wavelength side at which the absorbance is 0.2 (hereinafter also referred to as wavelength λ1) is preferably in the wavelength range of 473 nm or more and 487 nm or less from the viewpoint of color separation, and is preferably in the wavelength range of 475 nm or more and 485 nm or less. More preferably, the wavelength range is from 478 nm to 482 nm, and even more preferably from 478 nm to 482 nm. In addition, from the viewpoint of color separation, the long wavelength side wavelength at which the absorbance is 0.2 (hereinafter also referred to as wavelength λ2) is preferably in the wavelength range of 555 nm or more and 595 nm or less, and is preferably in the wavelength range of 560 nm or more and 590 nm or less. More preferably, the wavelength range is from 565 nm to 585 nm, and even more preferably from 565 nm to 585 nm.

The wavelength difference (λ2−λ1) between the wavelength λ2 and the wavelength λ1 is preferably 60 to 115 nm, more preferably 70 to 105 nm, and even more preferably 75 to 100 nm from the viewpoint of color separation.

The colored composition of the present invention preferably has a minimum value of absorbance in a wavelength range of 495 nm or more and less than 550 nm among the absorbance for light with a wavelength of 400 to 700 nm, and has a minimum value of absorbance in a wavelength range of 500 nm to 535 nm. It is more preferable that the absorbance has a minimum value, and even more preferably that the absorbance has a minimum value in a wavelength range of 505 nm or more and 525 nm or less. Hereinafter, among the absorbances for light having a wavelength of 400 to 700 nm, the wavelength showing the minimum value of absorbance is also referred to as wavelength λmin.

The wavelength difference between the wavelength λmin and the wavelength λ1 (wavelength λmin-λ1) is preferably 15 to 60 nm from the viewpoint of color separation, more preferably 20 to 50 nm, and even more preferably 25 to 40 nm. preferable. Further, the wavelength difference between the wavelength λ2 and the wavelength λmin (wavelength λ2 - wavelength λmin) is preferably 30 to 70 nm from the viewpoint of color separation, more preferably 40 to 60 nm, and 45 to 55 nm. More preferably.

When the colored composition of the present invention forms a cured film with a thickness of 0.6 to 3.0 μm, the maximum transmittance for light with a wavelength of 495 nm or more and less than 550 nm in the thickness direction of the film is 65% or more. It is preferably 70% or more, and even more preferably 75% or more.
Further, the average transmittance of the film for light having a wavelength of 495 nm or more and less than 550 nm is preferably 60% or more, more preferably 65% or more, and even more preferably 70% or more.
Further, the transmittance of the film for light having a wavelength of 450 nm is preferably 10% or less, more preferably 5% or less, and even more preferably 2% or less.
Further, the average transmittance of the film for light having a wavelength of 400 nm or more and 450 nm or less is preferably 10% or less, more preferably 5% or less, and even more preferably 1% or less.
Further, the average transmittance of the film for light having a wavelength of 550 nm or more and 600 nm or less is preferably 60% or less, more preferably 50% or less, and even more preferably 40% or less.

In order to adjust the absorbance and other values of the coloring composition to the above range, the content of Color Index Pigment Green 7 in the green colorant, the content of Color Index Pigment Green 7 and Color Index Pigment Yellow 150 in the colorant, etc. Amount ratio, content ratio of green coloring agents other than Color Index Pigment Green 7 and Color Index Pigment Yellow 150 in the colorant, total amount of Color Index Pigment Green 7 and Color Index Pigment Yellow 150 in the colorant , and can be adjusted as appropriate by changing the content of the coloring agent in the coloring composition.

The colored composition of the present invention can be preferably used as a colored composition for forming pixels of a color filter, and more preferably used as a colored composition for forming green pixels of a color filter.

The colored composition of the present invention can be preferably used as a colored composition for display devices. More specifically, it can be preferably used as a coloring composition for forming pixels of a color filter for a display device, and more preferably as a coloring composition for forming green pixels of a color filter for a display device. The type of display device is not particularly limited, but examples include display devices having an organic semiconductor element as a light source, such as an organic electroluminescence display device.

Furthermore, the colored composition of the present invention can also be used as a colored composition for solid-state imaging devices. More specifically, it can be preferably used as a coloring composition for forming pixels of a color filter for a solid-state image sensor, and more preferably used as a coloring composition for forming a green pixel of a color filter for a solid-state image sensor.

It is also preferable that the colored composition of the present invention is used to form a cured film at a temperature of 150° C. or lower (preferably, a temperature of 120° C. or lower) throughout the entire process. In addition, in this specification, forming a cured film at a temperature of 150° C. or lower throughout all steps means performing all steps of forming a cured film using a colored composition at a temperature of 150° C. or lower.

The thickness of the cured film and pixels formed by the coloring composition of the present invention is preferably 0.5 to 3.0 μm. The lower limit is preferably 0.8 μm or more, more preferably 1.0 μm or more, and even more preferably 1.1 μm or more. The upper limit is preferably 2.5 μm or less, more preferably 2.0 μm or less, and even more preferably 1.8 μm or less.

Further, the line width (pattern size) of pixels formed by the coloring composition of the present invention is preferably 2.0 to 10.0 μm. The upper limit is preferably 7.5 μm or less, more preferably 5.0 μm or less, and even more preferably 4.0 μm or less. The lower limit is preferably 2.25 μm or more, more preferably 2.5 μm or more, and even more preferably 2.75 μm or more.

Hereinafter, the colored composition of the present invention will be explained in detail.
<<Colorant>>
The colored composition of the present invention contains a coloring agent. The coloring agent used in the coloring composition of the present invention includes a green coloring agent and a yellow coloring agent. The green colorant and yellow colorant may be either inorganic pigments or organic pigments. Further, as the pigment, an inorganic pigment or an organic-inorganic pigment partially substituted with an organic chromophore can also be used. By replacing inorganic pigments or organic-inorganic pigments with organic chromophores, hue design can be facilitated.

Examples of the green colorant used in the coloring composition of the present invention include Color Index (C.I.) Pigment Green 7, 10, 36, 37, 58, 59, 62, 63, 64 (phthalocyanine), 65 (phthalocyanine), 66 (phthalocyanine series), etc. In addition, as a green coloring agent, zinc halide has an average number of 10 to 14 halogen atoms, an average of 8 to 12 bromine atoms, and an average of 2 to 5 chlorine atoms in one molecule. Mention may also be made of phthalocyanine pigments. Specific examples include compounds described in International Publication No. 2015/118720. In addition, as the green coloring agent, the compound described in Chinese Patent Application No. 106909027, the phthalocyanine compound having a phosphoric acid ester as a ligand described in International Publication No. 2012/102395, and the phthalocyanine compound described in JP 2019-008014 Publication Also included are the phthalocyanine compounds described in , the phthalocyanine compounds described in JP 2018-180023, and the compounds described in JP 2019-038958.

The green colorant used in the present invention is C.I. I. A material containing 1% by mass or more of Pigment Green 7 is used. C. in green colorant. I. The content of Pigment Green 7 is preferably 2% by mass or more, more preferably 3% by mass or more, and even more preferably 4% by mass or more. The green colorant is C. I. It may further contain a green coloring agent other than Pigment Green 7. C. I. As green colorants other than Pigment Green 7, C.I. I. Pigment Green 36 and Pigment Green 58 are preferred, and from the viewpoint of light resistance, C.I. I. Pigment Green 36 is more preferable.

Preferred embodiments of the green colorant used in the present invention include the following embodiments G1 and G2, and the lower embodiment G1 is preferred from the viewpoint of color separation.

Embodiment G1: The green colorant is substantially C.I. I. An embodiment in which only Pigment Green 7 is used.
Embodiment G2: The green colorant is C. I. Pigment Green 7 and C. I. As a green coloring agent other than Pigment Green 7, C.I. I. pigment green 36.

Note that in this specification, the green colorant is substantially C.I. I. The case where only Pigment Green 7 is used means that C. I. This means that the content of Pigment Green 7 is 99.5% by mass or more, and preferably 99.9% by mass or more.

In the green colorant of Embodiment G2 above, C.I. I. As a green coloring agent other than Pigment Green 7, C.I. I. Although it may contain a green colorant other than Pigment Green 36, from the viewpoint of fastness and stability, C. I. It is preferable that green coloring agents other than Pigment Green 36 are substantially not included. That is, the green colorant of embodiment G2 above is substantially C.I. I. Pigment Green 7 and C. I. Pigment green 36. Note that in this specification, the green colorant is substantially C.I. I. Pigment Green 7 and C. I. Pigment Green 36 means that C. I. Pigment Green 7 and C. I. This means that the total content with Pigment Green 36 is 99.5% by mass or more, and preferably 99.9% by mass or more.

Further, in the green colorant of the above aspect G2, C.I. I. The content of green colorants other than Pigment Green 7 is C. I. The amount is preferably 0.1 to 100 parts by weight, more preferably 1 to 50 parts by weight, and even more preferably 5 to 25 parts by weight, based on 100 parts by weight of Pigment Green 7. Also, C. I. The content of Pigment Green 36 is C. I. The amount is preferably 0.1 to 100 parts by weight, more preferably 1 to 50 parts by weight, and even more preferably 5 to 25 parts by weight, based on 100 parts by weight of Pigment Green 7.

The yellow coloring agent used in the coloring composition of the present invention includes 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), etc.

In addition, as the yellow coloring agent, compounds described in JP-A No. 2017-201003, compounds described in JP-A No. 2017-197719, paragraph numbers 0011-0062, 0137-0276 of JP-A No. 2017-171912 are used. Compounds described in paragraph numbers 0010 to 0062, 0138 to 0295 of JP 2017-171913, compounds described in paragraph numbers 0011 to 0062, 0139 to 0190 of JP 2017-171914, JP Compounds described in paragraph numbers 0010 to 0065 and 0142 to 0222 of JP 2017-171915, quinophthalone compounds described in paragraph numbers 0011 to 0034 of JP 2013-054339, and paragraph 0013 of JP 2014-026228. -0058, isoindoline compounds described in JP2018-062644, quinophthalone compounds described in JP2018-203798, quinophthalone compounds described in JP2018-062578, patent no. Quinophthalone compounds described in JP 2018-155881, quinophthalone compounds described in JP 2018-111757, quinophthalone compounds described in JP 2018-040835, JP 2018-040835, Quinophthalone compounds described in JP2017-197640, quinophthalone compounds described in JP2016-145282, quinophthalone compounds described in JP2014-085565, quinophthalone compounds described in JP2014-021139, Quinophthalone compounds described in JP2013-209614A, quinophthalone compounds described in JP2013-209435A, quinophthalone compounds described in JP2013-181015A, quinophthalone compounds described in JP2013-061622A Compounds, quinophthalone compounds described in JP2013-032486A, quinophthalone compounds described in JP2012-226110A, quinophthalone compounds described in JP2008-074987A, quinophthalone compounds described in JP2008-081565A Quinophthalone compounds described in JP-A No. 2008-074986, quinophthalone compounds described in JP-A No. 2008-074985, quinophthalone compounds described in JP-A No. 2008-050420, quinophthalone compounds described in JP-A No. 2008-031281 Quinophthalone compounds described in Japanese Patent Publication No. 48-032765, Quinophthalone compounds described in Japanese Patent Publication No. 2019-008014, methine dyes described in Japanese Patent Application Publication No. 2019-073695, Japanese Patent Publication No. 2019-073696 The methine dye described in JP-A-2019-073697, the methine dye described in JP-A-2019-073698, the compound represented by the following formula (QP1), the following formula (QP2) Also included are compounds represented by

In formula (QP1), X ¹ to X ¹⁶ each 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 formula (QP1) include the compound described in paragraph number 0016 of Japanese Patent No. 6443711.

In formula (QP2), Y ¹ to Y ³ each independently represent a halogen atom. n and m represent integers from 0 to 6, and p represents an integer from 0 to 5. (n+m) is 1 or more. Specific examples of the compound represented by formula (QP2) include compounds described in paragraph numbers 0047 to 0048 of Japanese Patent No. 6432077.

A nickel azobarbiturate complex having the following structure can also be used as the yellow colorant.

The yellow colorant used in the present invention is C.I. I. Contains Pigment Yellow 150. C. in yellow colorant. I. The content of Pigment Yellow 150 is preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more.

Preferred embodiments of the yellow colorant used in the present invention include the following embodiments Y1 and Y2, and from the viewpoint of light resistance, the following embodiment Y1 is preferred.

Embodiment Y1: The yellow colorant is substantially C.I. I. An embodiment in which only Pigment Yellow 150 is used.
Embodiment Y2: The yellow colorant is C.I. I. Pigment Yellow 150 and C.I. I. An embodiment containing a yellow colorant other than Pigment Yellow 150.

Note that in this specification, the yellow colorant is substantially C.I. I. Pigment Yellow 150 alone means C.I. pigment in the yellow colorant. I. This means that the content of Pigment Yellow 150 is 99.5% by mass or more, and preferably 99.9% by mass or more.

In the yellow colorant of Embodiment Y2 above, C.I. I. Pigment Yellow 150 is a yellow coloring agent other than C.I. I. Pigment Yellow 129, Pigment Yellow 138, C.I. I. Pigment Yellow 139, C. I. Pigment Yellow 185, etc., and from the viewpoint of color separation and light resistance, C.I. I. Pigment Yellow 129 and Pigment Yellow 138 are preferred.

Moreover, in the yellow coloring agent of the above aspect Y2, C.I. I. The content of yellow colorants other than Pigment Yellow 150 is C.I. I. The amount is preferably 0.1 to 100 parts by weight, more preferably 1 to 50 parts by weight, and even more preferably 10 to 25 parts by weight, per 100 parts by weight of Pigment Yellow 150.

The colorant used in the coloring composition of the present invention is C.I. I. Pigment Green 7 and other green colorants and C.I. I. Pigment Yellow 150 in a mass ratio of C. I. Green colorant other than Pigment Green 7: C.I. I. Pigment Yellow 150=0:100 to 18:82, preferably 0:100 to 17:83, more preferably 0:100 to 10:90. C. I. Pigment Green 7 and other green colorants and C.I. I. When the mass ratio with Pigment Yellow 150 is within the above range, the storage stability of the colored composition is good, and by using this colored composition, a cured film with excellent light resistance can be formed. Also, C. I. As green colorants other than Pigment Green 7, C.I. I. Pigment Green 36 is preferred.

Further, the coloring agent used in the colored composition of the present invention is C.I. I. C. for 100 parts by mass of Pigment Green 7. I. It is preferable to contain 50 to 240 parts by mass of Pigment Yellow 150. The upper limit is preferably 200 parts by mass or less, more preferably 150 parts by mass or less. The lower limit is preferably 80 parts by mass or more, more preferably 100 parts by mass or more. C. I. Pigment Green 7 and C. I. If the ratio with Pigment Yellow 150 is within the above range, better storage stability is likely to be obtained.

Further, the coloring agent used in the coloring composition of the present invention preferably contains 50 to 240 parts by weight of a yellow coloring agent per 100 parts by weight of a green coloring agent. The upper limit is preferably 200 parts by mass or less, more preferably 150 parts by mass or less. The lower limit is preferably 80 parts by mass or more, more preferably 100 parts by mass or more. If the ratio of the green colorant to the yellow colorant is within the above range, better storage stability is likely to be obtained.

Further, the total content of the green colorant and the yellow colorant in the total amount of colorants used in the coloring composition of the present invention is preferably 50 to 100% by mass, and preferably 75 to 100% by mass. The content is more preferably 90 to 100% by mass.

The coloring agent used in the coloring composition of the present invention may contain coloring agents other than the green coloring agent and the yellow coloring agent (hereinafter also referred to as other coloring agents). The content of other colorants in the colorant is preferably 50% by mass or less, more preferably 25% by mass or less, even more preferably 10% by mass or less, from the viewpoint of color separation. It is particularly preferred that the composition is substantially free of other colorants. In addition, the case where the coloring agent used in the coloring composition of the present invention does not substantially contain other coloring agents means that the content of other coloring agents in the coloring agent is less than 0.5% by mass. It is preferable that the amount is less than 0.1% by mass, and it is more preferable that no other coloring agent is contained.

Other colorants include chromatic colorants such as red colorants, blue colorants, purple colorants, and orange colorants. Other colorants may be pigments or dyes. A pigment and a dye may be used together. Examples of pigments 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. (Above, orange pigment)
C. 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, 264, 269, 270, 272, 279, 291, 294 (xanthene type, Organo Ultramarine, Bluish Red), 295 (monoazo type), 296 (diazo type), 297 (aminoketone type), etc. (red pigments),
C. I. Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60 (triarylmethane type), 61 (xanthene type), etc. (purple pigments),
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), 88 (methine type), etc. (the above are blue pigments).

Moreover, an aluminum phthalocyanine compound having a phosphorus atom can also be used as a blue colorant. Specific examples include compounds described in paragraph numbers 0022 to 0030 of JP-A No. 2012-247591 and paragraph number 0047 of JP-A No. 2011-157478.

As a red colorant, a diketopyrrolopyrrole compound in which at least one bromine atom is substituted in the structure described in JP 2017-201384, and a diketopyrrolopyrrole compound described in paragraph numbers 0016 to 0022 of Patent No. 6248838. , diketopyrrolopyrrole compounds described in International Publication No. 2012/102399, diketopyrrolopyrrole compounds described in International Publication No. 2012/117965, naphthol azo compounds described in JP 2012-229344, Patent No. 6516119 The red coloring agent described in Japanese Patent No. 6525101, etc. can also be used. Furthermore, as a red colorant, a compound having a structure in which an aromatic ring group into which a group to which an oxygen atom, sulfur atom, or nitrogen atom is bonded is bonded to a diketopyrrolopyrrole skeleton may be used. You can also do it.

There are no particular restrictions on the dye, and known dyes can be used. For example, pyrazole azo series, anilinoazo series, triarylmethane series, anthraquinone series, anthrapyridone series, benzylidene series, oxonol series, pyrazolotriazole azo series, pyridone azo series, cyanine series, phenothiazine series, pyrrolopyrazole azomethine series, xanthene series, Examples include phthalocyanine-based, benzopyran-based, indigo-based, and pyrromethene-based dyes.

Other colorants may be dye multimers. 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 be the same dye structure or may be different dye structures. The weight average molecular weight (Mw) of the dye multimer is preferably 2,000 to 50,000. The lower limit is more preferably 3,000 or more, and even more preferably 6,000 or more. The upper limit is more preferably 30,000 or less, and even more preferably 20,000 or less. Dye multimers are described in JP 2011-213925, JP 2013-041097, JP 2015-028144, JP 2015-030742, WO 2016/031442, etc. Compounds can also be used.

The content of the coloring agent in the total solid content of the colored composition is preferably 15% by mass or more, more preferably 20% by mass or more, and even more preferably 25% by mass or more. The upper limit is preferably 60% by mass or less, more preferably 50% by mass or less, and even more preferably 40% by mass or less.

<<Polymerizable compound>>
The colored composition of the present invention contains a polymerizable compound. Examples of the polymerizable compound include compounds having an ethylenically unsaturated bond-containing group. Examples of the ethylenically unsaturated bond-containing group include a vinyl group, a (meth)allyl group, a (meth)acryloyl group, and the like. The polymerizable compound is preferably a compound that can be polymerized by radicals (radical polymerizable compound).

The polymerizable compound may be in any chemical form such as a monomer, prepolymer, or oligomer, but monomers are preferred. The molecular weight of the polymerizable compound is preferably 100 to 3,000. The upper limit is preferably 2000 or less, more preferably 1500 or less. The lower limit is preferably 150 or more, more preferably 250 or more.

The ethylenically unsaturated bond-containing group value (hereinafter referred to as C═C value) of the polymerizable compound is preferably 2 to 14 mmol/g from the viewpoint of stability of the coloring composition over time. The lower limit is preferably 3 mmol/g or more, more preferably 4 mmol/g or more, and even more preferably 5 mmol/g or more. The upper limit is preferably 12 mmol/g or less, more preferably 10 mmol/g or less, and even more preferably 8 mmol/g or less. The C═C value of the polymerizable compound was calculated by dividing the number of ethylenically unsaturated bond-containing groups contained in one molecule of the polymerizable compound by the molecular weight of the polymerizable compound.

The polymerizable compound is preferably a compound containing three or more ethylenically unsaturated bond-containing groups, and more preferably a compound containing four or more ethylenically unsaturated bond-containing groups. According to this aspect, the curability of the colored composition upon exposure to light is good. The upper limit of the ethylenically unsaturated bond-containing groups is preferably 15 or less, more preferably 10 or less, and even more preferably 6 or less from the viewpoint of the stability of the coloring composition over time. Further, the polymerizable compound is preferably a trifunctional or higher functional (meth)acrylate compound, more preferably a trifunctional to 15 functional (meth)acrylate compound, and a trifunctional to 10 functional (meth)acrylate compound. More preferably, it is a tri- to hexa-functional (meth)acrylate compound.

It is also preferable that the polymerizable compound is a compound containing an ethylenically unsaturated bond-containing group and an alkyleneoxy group. Such polymerizable compounds have high flexibility and the ethylenically unsaturated bond-containing group is easily mobile, so the polymerizable compounds easily react with each other during exposure, resulting in a cured film ( pixels) can be formed. In addition, when a hydroxyalkylphenone compound is used as a photopolymerization initiator, the polymerizable compound and the photopolymerization initiator come close to each other and generate radicals in the vicinity of the polymerizable compound, making the polymerization more effective. It is presumed that a cured film (pixel) having superior adhesion, light resistance, and solvent resistance can be easily formed.

The number of alkyleneoxy groups contained in one molecule of the polymerizable compound is preferably 3 or more, more preferably 4 or more. The upper limit is preferably 20 or less from the viewpoint of stability of the coloring composition over time.

Further, the SP value (Solution Parameter) of the compound containing an ethylenically unsaturated bond-containing group and an alkyleneoxy group is preferably 9.0 to 11.0 from the viewpoint of compatibility with other components in the coloring composition. . The upper limit is preferably 10.75 or less, more preferably 10.5 or less. The lower limit is preferably 9.25 or more, more preferably 9.5 or more. Note that in this specification, the SP value used is a calculated value based on the Fedors method.

Examples of the compound having an ethylenically unsaturated bond-containing group and an alkyleneoxy group include a compound represented by the following formula (M-1).
Formula (M-1)
In the formula, A ¹ represents an ethylenically unsaturated bond-containing group, L ¹ represents a single bond or a divalent linking group, R ¹ represents an alkylene group, m represents an integer from 1 to 30, and n represents an integer of 3 or more, and L ² represents an n-valent linking group.

Examples of the ethylenically unsaturated bond-containing group represented by A ¹ include a vinyl group, a (meth)allyl group, and a (meth)acryloyl group, with a (meth)acryloyl group being preferred.

The divalent linking group represented by L ¹ includes an alkylene group, an arylene group, -O-, -CO-, -COO-, -OCO-, -NH-, and a combination of two or more of these groups. . The alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms, and still more preferably 1 to 15 carbon atoms. The alkylene group may be linear, branched, or cyclic. The number of carbon atoms in the arylene group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 10.

The number of carbon atoms in the alkylene group represented by R ¹ is preferably 1 to 10, more preferably 1 to 5, even more preferably 1 to 3, particularly preferably 2 or 3, and most preferably 2. The alkylene group represented by R ¹ is preferably linear or branched, and more preferably linear. Specific examples of the alkylene group represented by R ¹ include an ethylene group, a linear or branched propylene group, and an ethylene group is preferred.

m represents an integer of 1 to 30, preferably an integer of 1 to 20, more preferably an integer of 1 to 10, even more preferably 1 to 5.

n represents an integer of 3 or more, preferably an integer of 4 or more. The upper limit of n is preferably an integer of 15 or less, more preferably an integer of 10 or less, and even more preferably an integer of 6 or less.

The n-valent linking group represented by ^L2 includes aliphatic hydrocarbon groups, aromatic hydrocarbon groups, heterocyclic groups, and groups consisting of combinations thereof, as well as aliphatic hydrocarbon groups, aromatic hydrocarbon groups, and heterocyclic groups. Examples thereof include a group formed by combining at least one type selected from cyclic groups and at least one type selected from -O-, -CO-, -COO-, -OCO-, and -NH-. The number of carbon atoms in 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 straight chain, branched, or cyclic, and straight chain or branched is preferred. The aromatic hydrocarbon 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 heterocyclic group may be a non-aromatic heterocyclic group or an aromatic heterocyclic group. The heterocyclic group preferably has a 5-membered ring or a 6-membered ring. Examples of the heteroatoms constituting the heterocyclic group include nitrogen atoms, oxygen atoms, and sulfur atoms. The number of heteroatoms constituting the heterocyclic group is preferably 1 to 3. The heterocyclic group may be a single ring or a condensed ring. It is also preferable that the n-valent linking group represented by L ² is a group derived from a polyfunctional alcohol.

As the compound having an ethylenically unsaturated bond-containing group and an alkyleneoxy group, a compound represented by the following formula (M-2) is more preferable.
Formula (M-2)
In the formula, R ² represents a hydrogen atom or a methyl group, R ¹ represents an alkylene group, m represents an integer of 1 to 30, n represents an integer of 3 or more, and L ² represents an n-valent linking group. represent. R ¹ , L ² , m, and n in formula (M-2) have the same meanings as R ¹ , L ² , m, and n in formula (M-1), and their preferred ranges are also the same.

Commercially available compounds having an ethylenically unsaturated bond-containing group and an alkyleneoxy group include KAYARAD T-1420 (T) and RP-1040 (manufactured by Nippon Kayaku Co., Ltd.).

Examples of polymerizable compounds include dipentaerythritol triacrylate (commercially available product: KAYARAD D-330; manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol tetraacrylate (commercially available product: KAYARAD D-320; manufactured by Nippon Kayaku Co., Ltd.) ), dipentaerythritol penta(meth)acrylate (commercial product: KAYARAD D-310; manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol hexa(meth)acrylate (commercial product: KAYARAD DPHA; Nippon Kayaku Co., Ltd.) Co., Ltd., NK Ester A-DPH-12E; Shin Nakamura Chemical Co., Ltd.), and structures in which these (meth)acryloyl groups are bonded via ethylene glycol and/or propylene glycol residues. Compounds (eg, SR454, SR499, commercially available from Sartomer) can also be used. In addition, as polymerizable compounds, diglycerin EO (ethylene oxide) modified (meth)acrylate (commercially available product is M-460; manufactured by Toagosei Co., Ltd.), 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 Toagosei Co., Ltd.) , NK Oligo UA-7200 (manufactured by Shin-Nakamura Chemical Co., Ltd.), 8UH-1006, 8UH-1012 (manufactured by Taisei Fine Chemical Co., Ltd.), light acrylate POB-A0 (manufactured by Kyoeisha Chemical Co., Ltd.), etc. may be used. You can also do it.

In addition, as polymerizable compounds, trimethylolpropane tri(meth)acrylate, trimethylolpropanepropyleneoxy-modified tri(meth)acrylate, trimethylolpropaneethyleneoxy-modified tri(meth)acrylate, isocyanurate ethyleneoxy-modified tri(meth)acrylate Trifunctional (meth)acrylate compounds such as acrylate and pentaerythritol tri(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, 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 Co., Ltd.), KAYARAD GPO-303, TMPTA, THE-330, TPA-330, PET-30 (manufactured by Nippon Kayaku Co., Ltd.) Examples include.

As the polymerizable compound, it is also preferable to use a polymerizable compound having an acid group. By using a polymerizable compound having an acid group, the colored composition layer in the unexposed area is 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 a carboxyl group is preferred. Examples of the polymerizable compound having an acid group include succinic acid-modified dipentaerythritol penta(meth)acrylate. Commercially available polymerizable compounds having acid groups include Aronix M-510, M-520, Aronix TO-2349 (manufactured by Toagosei Co., Ltd.), and the like. The preferred acid value of the polymerizable compound having an acid group is 0.1 to 40 mgKOH/g, more preferably 5 to 30 mgKOH/g. If the acid value of the polymerizable compound is 0.1 mgKOH/g or more, it has good solubility in a developer, and if it is 40 mgKOH/g or less, it is advantageous in terms of production and handling.

As the polymerizable compound, it is also preferable to use a compound having a caprolactone structure. Polymerizable compounds having a caprolactone structure are commercially available from Nippon Kayaku Co., Ltd. as the KAYARAD DPCA series, and include DPCA-20, DPCA-30, DPCA-60, DPCA-120, and the like.

As the polymerizable compound, it is also preferable to use a compound substantially free of environmentally controlled substances such as toluene. Commercially available products of such compounds include KAYARAD DPHA LT and KAYARAD DPEA-12 LT (manufactured by Nippon Kayaku Co., Ltd.).

Examples of the polymerizable compound include urethane acrylates as described in Japanese Patent Publication No. 48-041708, Japanese Patent Application Laid-Open No. 51-037193, Japanese Patent Publication No. 02-032293, and Japanese Patent Publication No. 02-016765; Urethane compounds having an ethylene oxide skeleton described in Japanese Patent Publication No. 58-049860, Japanese Patent Publication No. 56-017654, Japanese Patent Publication No. 62-039417, and Japanese Patent Publication No. 62-039418 are also suitable. It is also preferable to use polymerizable compounds having an amino structure or a sulfide structure in the molecule described in JP-A-63-277653, JP-A-63-260909, and JP-A-01-105238. In addition, the polymerizable compounds include UA-7200 (manufactured by Shin Nakamura Chemical Industry Co., Ltd.), DPHA-40H (manufactured by Nippon Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I, AH-600, Commercially available products such as T-600, AI-600, LINC-202UA (manufactured by Kyoeisha Chemical Co., Ltd.) can also be used.

The content of the polymerizable compound is preferably 5 to 35% by mass based on the total solid content of the coloring composition. The upper limit is preferably 30% by mass or less, more preferably 25% by mass or less. The lower limit is preferably 7.5% by mass or more, more preferably 10% by mass or more.

<<Photopolymerization initiator>>
The colored composition of the present invention contains a photopolymerization initiator. The photopolymerization initiator is not particularly limited and can be appropriately selected from known photopolymerization initiators. For example, compounds having photosensitivity to light in the ultraviolet to visible range are preferred. The photopolymerization initiator is preferably a radical photopolymerization initiator.

Examples of photopolymerization initiators include halogenated hydrocarbon derivatives (for example, compounds having a triazine skeleton, compounds having an oxadiazole skeleton, etc.), acylphosphine compounds such as acylphosphine oxide, hexaarylbiimidazole compounds, oxime derivatives, etc. Examples include oxime compounds, organic peroxides, thio compounds, ketone compounds, aromatic onium salts, ketoxime ether compounds, aminoalkylphenone compounds, hydroxyalkylphenone compounds, phenylglyoxylate compounds, and the like. As specific examples of the photopolymerization initiator, for example, the descriptions in paragraphs 0265 to 0268 of JP 2013-029760 A and Japanese Patent No. 6301489 can be referred to, and the contents of these are incorporated herein. . The photopolymerization initiator used in the present invention preferably contains an oxime compound, and more preferably contains an oxime compound and a hydroxyalkylphenone compound.

Examples of the phenylglyoxylate compound include phenylglyoxylic acid methyl ester. Commercially available products include Omnirad MBF (manufactured by IGM Resins B.V.) and Irgacure MBF (manufactured by BASF).

Examples of the acylphosphine compound include those described in Japanese Patent No. 4225898. Specific examples include bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide. Commercially available acylphosphine compounds include Omnirad 819, Omnirad TPO (manufactured by IGM Resins B.V.), Irgacure 819, Irgacure TPO (manufactured by BASF), and the like.

Examples of the aminoalkylphenone compound include aminoalkylphenone compounds described in JP-A-10-291969. In addition, commercially available aminoalkylphenone compounds include Omnirad 907, Omnirad 369, Omnirad 369E, Omnirad 379EG (manufactured by IGM Resins B.V.), Irgacure 907, Irgacure 369, and Irgacure 3. 69E, Irgacure 379EG (and above, (manufactured by BASF), etc.

Examples of the hydroxyalkylphenone compound include a compound represented by the following formula (V).
Formula (V)
In the formula, Rv ¹ represents a substituent, Rv ² and Rv ³ each independently represent a hydrogen atom or a substituent, and Rv ² and Rv ³ may be bonded to each other to form a ring, m represents an integer from 0 to 5.

Examples of the substituent represented by Rv ¹ include an alkyl group (preferably an alkyl group having 1 to 10 carbon atoms) and an alkoxy group (preferably an alkoxy group having 1 to 10 carbon atoms). The alkyl group and the alkoxy group are preferably linear or branched, and more preferably linear. The alkyl group and alkoxy group represented by Rv ¹ may be unsubstituted or may have a substituent. Examples of the substituent include a hydroxy group and a group having a hydroxyalkylphenone structure. Examples of the group having a hydroxyalkylphenone structure include a benzene ring to which Rv ¹ is bonded in formula (V), or a group having a structure in which one hydrogen atom is removed from Rv ¹ .

Rv ² and Rv ³ each independently represent a hydrogen atom or a substituent. As the substituent, an alkyl group (preferably an alkyl group having 1 to 10 carbon atoms) is preferable. Furthermore, Rv ² and Rv ³ may be bonded to each other to form a ring (preferably a ring having 4 to 8 carbon atoms, more preferably an aliphatic ring having 4 to 8 carbon atoms). The alkyl group is preferably linear or branched, more preferably linear.

Specific examples of the compound represented by formula (V) include the following compounds.

Commercially available hydroxyalkylphenone compounds include Omnirad 184, Omnirad 1173, Omnirad 2959, Omnirad 127 (manufactured by IGM Resins B.V.), Irgacure 184, Irgacure 1173, and Irgacure 29. 59, Irgacure 127 (all manufactured by BASF) (manufactured by).

Examples of oxime compounds include the compounds described in JP-A No. 2001-233842, the compounds described in JP-A No. 2000-080068, the compounds described in JP-A No. 2006-342166, and the compounds described in JP-A No. 2006-342166. C. S. Perkin II (1979, pp. 1653-1660); C. S. Compounds described in Perkin II (1979, pp. 156-162), compounds described in Journal of Photopolymer Science and Technology (1995, pp. 202-232), compounds described in JP-A-2000-066385 compound, Compounds described in Japanese Patent Publication No. 2004-534797, compounds described in Japanese Patent Application Publication No. 2006-342166, compounds described in Japanese Patent Application Publication No. 2017-019766, compounds described in Japanese Patent No. 6065596, International Publication No. 2015 /152153, the compound described in International Publication No. 2017/051680, the compound described in JP 2017-198865, the compound described in paragraph numbers 0025 to 0038 of International Publication No. 2017/164127, Examples include compounds described in International Publication No. 2013/167515. Specific examples of oxime compounds include 3-benzoyloxyiminobutan-2-one, 3-acetoxyiminobutan-2-one, 3-propionyloxyiminobutan-2-one, 2-acetoxyiminopentan-3-one, 2-acetoxyimino-1-phenylpropan-1-one, 2-benzoyloxyimino-1-phenylpropan-1-one, 3-(4-toluenesulfonyloxy)iminobutan-2-one, and 2-ethoxycarbonyloxy Examples include imino-1-phenylpropan-1-one. Commercially available products include Irgacure OXE01, Irgacure OXE02, Irgacure OXE03, Irgacure OXE04 (manufactured by BASF), TR-PBG-304 (manufactured by Changzhou Strong Electronics New Materials Co., Ltd.), and Adeka Optomer N-1919 (manufactured by Changzhou Strong Electronics New Materials Co., Ltd.). Photopolymerization initiator 2) manufactured by ADEKA and described in JP-A-2012-014052 can be mentioned. Further, as the oxime compound, it is also preferable to use a compound without coloring property or a compound with high transparency and resistance to discoloration. Commercially available products include ADEKA Arkles NCI-730, NCI-831, and NCI-930 (manufactured by ADEKA Co., Ltd.).

As the photopolymerization initiator, an oxime compound having a fluorene ring can also be used. Specific examples of oxime compounds having a fluorene ring include compounds described in JP-A No. 2014-137466.

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

As the photopolymerization initiator, an oxime compound having a fluorine atom can also be used. The oxime compound containing a fluorine atom is preferably a compound represented by formula (OX-1).
(OX-1)
In formula (OX-1), Ar ¹ and Ar ² each independently represent an aromatic hydrocarbon ring which may have a substituent, and R ¹ represents an aryl group having a group containing a fluorine atom. R ² and R ³ each independently represent an alkyl group or an aryl group.

The aromatic hydrocarbon ring represented by Ar ¹ and Ar ² in formula (OX-1) may be a monocyclic ring or a fused ring. The number of carbon atoms constituting the aromatic hydrocarbon ring is preferably 6 to 20, more preferably 6 to 15, particularly preferably 6 to 10. The aromatic hydrocarbon ring is preferably a benzene ring or a naphthalene ring. Among these, Ar ¹ is preferably a benzene ring. It is preferable that Ar ² is a benzene ring or a naphthalene ring, and more preferably a naphthalene ring.

Examples of substituents that Ar ¹ and Ar ² may have include an alkyl group, an aryl group, a heterocyclic group, a nitro group, a cyano group, a halogen atom, -OR ^X1 , -SR ^X1 , -COR ^X1 , -COOR ^X1 , _-OCOR ^X1 _, -NR ^X1 R ^{X2 , -NHCOR X1} , -CONR ^{X1 R X2} , -NHCONR ^{X1 R X2} , _-NHCOOR Can be mentioned. R ^X1 and R ^X2 each independently represent a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group.
Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, and the like, with a fluorine atom being preferred. The alkyl group as a substituent and the alkyl group represented by R ^X1 and R ^X2 preferably have 1 to 30 carbon atoms. The alkyl group may be straight chain, branched, or cyclic, but straight chain or branched is preferable. In the alkyl group, some or all of the hydrogen atoms may be substituted with a halogen atom (preferably a fluorine atom). Further, in the alkyl group, some or all of the hydrogen atoms may be substituted with the above substituent. The aryl group as a substituent and the aryl group represented by R ^X1 and R ^X2 preferably have 6 to 20 carbon atoms, more preferably 6 to 15 carbon atoms, and even more preferably 6 to 10 carbon atoms. The aryl group may be a single ring or a condensed ring. Further, in the aryl group, some or all of the hydrogen atoms may be substituted with the above substituent. The heterocyclic group as a substituent and the heterocyclic group represented by R ^X1 and R ^X2 are preferably a 5-membered ring or a 6-membered ring. The heterocyclic group may be a single ring or a condensed ring. The number of carbon atoms constituting the heterocyclic group is preferably 3 to 30, more preferably 3 to 18, and even more preferably 3 to 12. The number of heteroatoms constituting the heterocyclic group is preferably 1 to 3. The heteroatom constituting the heterocyclic group is preferably a nitrogen atom, an oxygen atom or a sulfur atom. Further, in the heterocyclic group, some or all of the hydrogen atoms may be substituted with the above substituent.

The aromatic hydrocarbon ring represented by Ar ¹ is preferably an unsubstituted aromatic hydrocarbon ring. The aromatic hydrocarbon ring represented by Ar ² preferably has a substituent. As a substituent, -COR ^X1 is preferred. R ^X1 is preferably an alkyl group, an aryl group, or a heterocyclic group, and more preferably an aryl group. The aryl group may have a substituent or may be unsubstituted. Examples of the substituent include an alkyl group having 1 to 10 carbon atoms.

R ¹ in formula (OX-1) represents an aryl group having a group containing a fluorine atom. The number of carbon atoms in the aryl group is preferably 6 to 20, more preferably 6 to 15, and even more preferably 6 to 10. The group containing a fluorine atom is preferably an alkyl group having a fluorine atom (hereinafter also referred to as a fluorine-containing alkyl group) and a group containing an alkyl group having a fluorine atom (hereinafter also referred to as a fluorine-containing group). The fluorine-containing groups include -OR ^F1 , -SR ^F1 , -COR ^F1 , -COOR ^F1 , -OCOR ^F1 , -NR ^F1 R ^F2 , -NHCOR ^F1 , -CONR ^F1 R ^F2 , -NHCONR ^F1 R ^F2 , -NHCOOR At least one group selected from ^F1 , -SO ₂ R ^F1 , -SO ₂ OR ^F1 and -NHSO ₂ R ^F1 is preferred. R ^F1 represents a fluorine-containing alkyl group, and R ^F2 represents a hydrogen atom, an alkyl group, a fluorine-containing alkyl group, an aryl group, or a heterocyclic group. The fluorine-containing group is preferably -OR ^F1 .

The number of carbon atoms in the fluorine-containing alkyl group represented by R ^F1 and R ^F2 and the alkyl group represented by R ^F2 is preferably 1 to 20, more preferably 1 to 15, even more preferably 1 to 10, and particularly preferably 1 to 4. . The fluorine-containing alkyl group and the alkyl group may be linear, branched, or cyclic, but are preferably linear or branched. In the fluorine-containing alkyl group, the substitution rate of fluorine atoms is preferably 40 to 100%, more preferably 50 to 100%, even more preferably 60 to 100%. Note that the substitution rate of fluorine atoms refers to the ratio (%) of the number of hydrogen atoms substituted with fluorine atoms to the total number of hydrogen atoms that an alkyl group has.

The number of carbon atoms in the aryl group represented by R ^F2 is preferably 6 to 20, more preferably 6 to 15, and even more preferably 6 to 10.

The heterocyclic group represented by R ^F2 is preferably a 5-membered ring or a 6-membered ring. The heterocyclic group may be a single ring or a condensed ring. The number of condensations is preferably 2 to 8, more preferably 2 to 6, even more preferably 3 to 5, and particularly preferably 3 to 4. The number of carbon atoms constituting the heterocyclic group is preferably 3 to 40, more preferably 3 to 30, and even more preferably 3 to 20. The number of heteroatoms constituting the heterocyclic group is preferably 1 to 3. The heteroatom constituting the heterocyclic group is preferably a nitrogen atom, an oxygen atom or a sulfur atom, and more preferably a nitrogen atom.

The group containing a fluorine atom preferably has a terminal structure represented by formula (1) or (2). * in the formula represents a connecting hand.
*-CHF ₂ (1)
*-CF ₃ (2)

R ² in formula (OX-1) represents an alkyl group or an aryl group, and an alkyl group is preferable. The alkyl group and aryl group may be unsubstituted or may have a substituent. Examples of the substituent include the substituents described above as substituents that Ar ¹ and Ar ² may have. The number of carbon atoms in the alkyl group is preferably 1 to 20, more preferably 1 to 15, even more preferably 1 to 10, particularly preferably 1 to 4. The alkyl group may be straight chain, branched, or cyclic, but straight chain or branched is preferable. The number of carbon atoms in the aryl group is preferably 6 to 20, more preferably 6 to 15, and even more preferably 6 to 10.

R ³ in formula (OX-1) represents an alkyl group or an aryl group, and an alkyl group is preferable. The alkyl group and aryl group may be unsubstituted or may have a substituent. Examples of the substituent include the substituents described above as the substituents that Ar ¹ and Ar ² may have. The number of carbon atoms in the alkyl group represented by R ³ is preferably 1 to 20, more preferably 1 to 15, and even more preferably 1 to 10. The alkyl group may be straight chain, branched, or cyclic, but straight chain or branched is preferable. The number of carbon atoms in the aryl group represented by R ³ is preferably 6 to 20, more preferably 6 to 15, and even more preferably 6 to 10.

Specific examples of oxime compounds having a fluorine atom include compounds described in JP-A No. 2010-262028, compounds 24, 36 to 40 described in Japanese Patent Application Publication No. 2014-500852, and compounds described in JP-A No. 2013-164471. Examples include compound (C-3).

As the photopolymerization initiator, an oxime compound having a nitro group can be used. It is also preferable that the oxime compound having a nitro group is in the form of a dimer. Specific examples of oxime compounds having a nitro group include compounds described in paragraph numbers 0031 to 0047 of JP 2013-114249, paragraphs 0008 to 0012, and 0070 to 0079 of JP 2014-137466, Examples include compounds described in paragraph numbers 0007 to 0025 of Japanese Patent No. 4223071, and Adeka Arcles NCI-831 (manufactured by ADEKA Corporation).

As the 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 the photopolymerization initiator, it is also possible to use an oxime compound in which a substituent having a hydroxy group is bonded to a carbazole skeleton. Examples of such photopolymerization initiators include compounds described in International Publication No. 2019/088055.

Specific examples of oxime compounds preferably used in the present invention are shown below, but the present invention is not limited thereto.

In the present invention, as a photopolymerization initiator, a photopolymerization initiator A1 having an extinction coefficient of 1.0×10 ³ mL/gcm or more at a wavelength of 365 nm in methanol and a photopolymerization initiator A1 having an extinction coefficient of 1.0×10 3 mL/gcm or more at a wavelength of 365 nm in methanol is used. It is also preferable to use a photopolymerization initiator A2 having an absorption coefficient of 0×10 ² mL/gcm or less and a wavelength of 254 nm of 1.0×10 ³ mL/gcm or more. According to this aspect, the coloring composition is easily cured by exposure to light, and has good flatness in a low-temperature process (for example, a process at a temperature of 150° C. or lower, preferably 120° C. or lower throughout the entire process), In addition, pixels with excellent properties such as light resistance and solvent resistance can be formed. As the photopolymerization initiator A1 and the photopolymerization initiator A2, it is preferable to select and use a compound having the above-mentioned extinction coefficient from among the above-mentioned compounds.

In the present invention, the extinction coefficient of the photopolymerization initiator at the above wavelength is a value measured as follows. That is, it was calculated by dissolving a photopolymerization initiator in methanol to prepare a measurement solution, and measuring the absorbance of the above-mentioned measurement solution. Specifically, the above measurement solution was placed in a glass cell with a width of 1 cm, and the absorbance was measured using a UV-Vis-NIR spectrometer (Cary 5000) manufactured by Agilent Technologies. The extinction coefficient (mL/gcm) at 254 nm was calculated.
In the above formula, ε represents the extinction coefficient (mL/gcm), A represents the absorbance, c represents the concentration of the photopolymerization initiator (g/mL), and l represents the optical path length (cm).

The extinction coefficient of photopolymerization initiator A1 in methanol at a wavelength of 365 nm is 1.0×10 ³ mL/gcm or more, preferably 1.0×10 ⁴ mL/gcm or more, and 1.1× It is more preferably 10 ⁴ mL/gcm or more, even more preferably 1.2 × 10 ⁴ to 1.0 × 10 ⁵ mL/gcm, and even more preferably 1.3 × 10 ⁴ to 5.0 × 10 ⁴ mL. It is even more preferable that the amount is 1.5×10 ⁴ to 3.0×10 ⁴ mL/gcm, and particularly preferably 1.5×10 4 to 3.0×10 4 mL/gcm.
Furthermore, the extinction coefficient of photopolymerization initiator A1 for light with a wavelength of 254 nm in methanol is preferably 1.0×10 ⁴ to 1.0×10 ⁵ mL/gcm, and preferably 1.5×10 ⁴ to 1.0×10 5 mL/gcm. It is more preferably 9.5×10 ⁴ mL/gcm, and even more preferably 3.0×10 ⁴ to 8.0×10 ⁴ mL/gcm.

As the photopolymerization initiator A1, oxime compounds, aminoalkylphenone compounds, and acylphosphine compounds are preferable, oxime compounds and acylphosphine compounds are more preferable, and oxime compounds are even more preferable, and compatibility with other components contained in the composition is preferred. From this viewpoint, oxime compounds containing a fluorine atom are particularly preferred. As the oxime compound containing a fluorine atom, a compound represented by the above-mentioned formula (OX-1) is preferable. Specific examples of the photopolymerization initiator A1 include 1,2-octanedione, 1-[4-(phenylthio)-,2-(O-benzoyloxime)] (commercially available products include, for example, Irgacure OXE01, BASF Co., Ltd. (commercially available products include, for example, Irgacure OXE02, (manufactured by BASF), (C-13), (C-14), and (C-17) shown in the above specific examples of oxime compounds.

The extinction coefficient of light at a wavelength of 365 nm in methanol of the photopolymerization initiator A2 is 1.0×10 ² mL/gcm or less, preferably 10 to 1.0×10 ² mL/gcm, and 20 More preferably, it is 1.0×10 ² mL/gcm. Further, the difference between the extinction coefficient of light at a wavelength of 365 nm in methanol of photoinitiator A1 and the extinction coefficient of light at a wavelength of 365 nm in methanol of photoinitiator A2 is 9.0 × 10 ² mL. /gcm or more, preferably 1.0×10 ³ mL/gcm or more, more preferably 5.0×10 ³ to 3.0×10 ⁴ mL/gcm, 1.0×10 More preferably, it is ⁴ to 2.0×10 ⁴ mL/gcm. Furthermore, the extinction coefficient of photopolymerization initiator A2 for light at a wavelength of 254 nm in methanol is 1.0×10 ³ mL/gcm or more, and 1.0×10 ³ to 1.0×10 ⁶ mL/gcm. It is preferably 5.0×10 ³ to 1.0×10 ⁵ mL/gcm.

As the photopolymerization initiator A2, hydroxyalkylphenone compounds, phenylglyoxylate compounds, aminoalkylphenone compounds, and acylphosphine compounds are preferable, hydroxyalkylphenone compounds and phenylglyoxylate compounds are more preferable, and hydroxyalkylphenone compounds are still more preferable. preferable. Moreover, as the hydroxyalkylphenone compound, a compound represented by the above-mentioned formula (V) is preferable. Specific examples of the photoinitiator A2 include 1-hydroxy-cyclohexyl-phenyl-ketone, 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propane-1- Examples include on.

The combination of photoinitiator A1 and photoinitiator A2 is preferably a combination in which photoinitiator A1 is an oxime compound and photoinitiator A2 is a hydroxyalkylphenone compound; A combination in which the photopolymerization initiator A2 is an oxime compound and the photopolymerization initiator A2 is a compound represented by the above formula (V) is more preferable; the photopolymerization initiator A1 is an oxime compound containing a fluorine atom, and the photopolymerization initiator A2 is Particularly preferred is a combination of compounds represented by formula (V) above.

The content of the photopolymerization initiator is preferably 3 to 25% by mass based on the total solid content of the colored composition. The lower limit is preferably 5% by mass or more, more preferably 7.5% by mass or more, even more preferably 8% by mass or more, even more preferably 9% by mass or more, and 10% by mass. % or more is particularly preferable. The upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and even more preferably 15% by mass or less. The photopolymerization initiators may be used alone or in combination of two or more. When two or more types are used together, it is preferable that the total amount thereof falls within the above range.

In addition, in the colored composition of the present invention, the content M of the polymerizable compound in the total solid content of the colored composition and the content I of the photopolymerization initiator in the total solid content of the colored composition on a mass % basis The ratio (M/I) is preferably 20 or less. The upper limit of the ratio is preferably 10 or less, more preferably 5 or less, even more preferably 3 or less, and particularly preferably 2 or less. The lower limit of the ratio is preferably 0.1 or more, more preferably 0.5 or more.

In the colored composition of the present invention, when the above-mentioned oxime compound is used as a photopolymerization initiator, the content of the oxime compound is preferably 3 to 25% by mass based on the total solid content of the colored composition. The lower limit is preferably 5% by mass or more, more preferably 7.5% by mass or more, even more preferably 8% by mass or more, even more preferably 9% by mass or more, and 10% by mass. % or more is particularly preferable. The upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and even more preferably 15% by mass or less. When the content of the oxime compound is within the above range, the adhesion of the cured film to the support after development can be improved. One type of oxime compound may be used alone, or two or more types may be used in combination. When two or more types are used together, it is preferable that the total amount thereof falls within the above range.

In addition, in the colored composition of the present invention, on a mass % basis, the content M of the polymerizable compound in the total solid content of the colored composition, the content I _O of the oxime compound in the total solid content of the colored composition, The ratio (M/I _O ) is preferably 20 or less. The upper limit of the ratio is preferably 10 or less, more preferably 5 or less, even more preferably 3 or less, and particularly preferably 2 or less. The lower limit of the ratio is preferably 0.1 or more, more preferably 0.5 or more.

In the colored composition of the present invention, when the above-described photoinitiator A1 is used as a photoinitiator, the content of the photoinitiator A1 is 3 to 25% by mass based on the total solid content of the colored composition. It is preferable. The lower limit is preferably 5% by mass or more, more preferably 7.5% by mass or more, even more preferably 8% by mass or more, even more preferably 9% by mass or more, and 10% by mass. % or more is particularly preferable. The upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and even more preferably 15% by mass or less. When the content of the photoinitiator A1 is within the above range, the adhesion of the cured film to the support after development can be improved.

In the colored composition of the present invention, on a mass % basis, the content M of the polymerizable compound in the total solid content of the colored composition and the content I A1 of the photopolymerization initiator _A1 in the total solid content of the colored composition The ratio (M/I _A1 ) is preferably 20 or less. The upper limit of the ratio is preferably 10 or less, more preferably 5 or less, even more preferably 3 or less, and particularly preferably 2 or less. The lower limit of the ratio is preferably 0.1 or more, more preferably 0.5 or more.

In the colored composition of the present invention, when the above-mentioned photoinitiator A2 is used as a photoinitiator, the content of the photoinitiator A2 is 0.1 to 10.0 in the total solid content of the colored composition. It is preferable that it is mass %. The lower limit is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and even more preferably 1.5% by mass or more. The upper limit is preferably 9.0% by mass or less, more preferably 8.0% by mass or less, and even more preferably 7.0% by mass or less. If the content of the photoinitiator A2 is within the above range, the solvent resistance of the cured film after development can be improved.

In the colored composition of the present invention, when the above-mentioned photopolymerization initiator A1 and photopolymerization initiator A2 are used as photopolymerization initiators, the coloring composition of the present invention contains 100 parts by mass of the photopolymerization initiator A1. On the other hand, it is preferable to contain 50 to 200 parts by mass of photopolymerization initiator A2. The upper limit is preferably 175 parts by mass or less, more preferably 150 parts by mass or less. The lower limit is preferably 60 parts by mass or more, more preferably 70 parts by mass or more. According to this aspect, a cured film having excellent properties such as solvent resistance can be formed in a low-temperature process (for example, a process at a temperature of 150° C. or lower, preferably 120° C. or lower throughout the entire process). When using two or more types of photopolymerization initiator A1 and photopolymerization initiator A2 in combination, it is preferable that the total amount of each of them satisfies the above requirements.

In the colored composition of the present invention, when the above-mentioned photopolymerization initiator A1 and photopolymerization initiator A2 are used as photopolymerization initiators, photopolymerization initiator A1 and photopolymerization start in the total solid content of the coloring composition. The total content with agent A2 is preferably 3.1 to 25% by mass. The lower limit is preferably 4% by mass or more, preferably 5% by mass or more, more preferably 7.5% by mass or more, even more preferably 8% by mass or more, and 9% by mass. It is even more preferable that the amount is at least 10% by mass, and particularly preferably at least 10% by mass. The upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and even more preferably 15% by mass or less.

The colored composition of the present invention may contain a photopolymerization initiator other than photopolymerization initiator A1 and photopolymerization initiator A2 (hereinafter also referred to as other photopolymerization initiator), It is preferable that other photopolymerization initiators are not substantially contained. The case where the other photoinitiator is not substantially contained means that the content of the other photoinitiator is 1 part by mass per 100 parts by mass of the total of photoinitiator A1 and photoinitiator A2. It is more preferably 0.5 parts by mass or less, still more preferably 0.1 parts by mass or less, and even more preferably not containing other photopolymerization initiators.

<<Resin>>
It is preferable that the colored composition of the present invention contains a resin. The resin is blended, for example, for dispersing pigments (C.I. Pigment Green 7, C.I. Pigment Yellow 150, etc.) in a coloring composition or for use as a binder. Note that a resin used mainly for dispersing pigments in a coloring composition is also referred to as a dispersant. However, this use of the resin is just an example, and the resin can also be used for purposes other than this use.

The weight average molecular weight (Mw) of the resin is preferably 2,000 to 2,000,000. The upper limit is preferably 1,000,000 or less, more preferably 500,000 or less. The lower limit is preferably 3000 or more, more preferably 4000 or more, and even more preferably 5000 or more.

Examples of the resin include (meth)acrylic resin, (meth)acrylamide resin, epoxy resin, ene-thiol resin, polycarbonate resin, polyether resin, polyarylate resin, polysulfone resin, polyethersulfone resin, polyphenylene resin, and polyarylene. Examples include ether phosphine oxide resin, polyimide resin, polyamideimide resin, polyolefin resin, cyclic olefin resin, polyester resin, styrene resin, and siloxane resin. In addition, resins described in paragraph numbers 0041 to 0060 of JP 2017-206689, resins described in paragraphs 0022 to 0071 of JP 2018-010856, resins described in JP 2017-057265, Resin described in JP 2017-032685, resin described in JP 2017-075248, resin described in JP 2017-066240, resin described in JP 2000-081701, JP Resins described in JP 1998-123311, JP 11-160523, and JP 2017-173787 can also be used.

The resin used in the present invention may have an acid group. Examples of the acid group include a carboxyl group, a phosphoric acid group, a sulfo group, and a phenolic hydroxy group. The number of these acid groups may be one, or two or more. It is preferable that the resin having an acid group includes a repeating unit having an acid group in a side chain. A resin having an acid group can also be used as an alkali-soluble resin or a dispersant.

The acid value of the resin having acid groups is preferably 30 to 500 mgKOH/g. The lower limit is more preferably 50 mgKOH/g or more, and even more preferably 70 mgKOH/g or more. The upper limit is more preferably 400 mgKOH/g or less, further preferably 200 mgKOH/g or less, particularly preferably 150 mgKOH/g or less, and most preferably 120 mgKOH/g or less.

The resin having an acid group may have a repeating unit derived from a maleimide compound. Examples of maleimide compounds include N-alkylmaleimide and N-arylmaleimide. Examples of repeating units derived from maleimide compounds include repeating units represented by formula (C-mi).

In formula (C-mi), Rmi represents an alkyl group or an aryl group. The alkyl group preferably has 1 to 20 carbon atoms. The alkyl group may be linear, branched, or cyclic. The number of carbon atoms in the aryl group is preferably 6 to 20, more preferably 6 to 15, and even more preferably 6 to 10. Preferably, Rmi is an aryl group.

The resin having an acid group is a repeating compound derived from a compound represented by the following formula (ED1) and/or a compound represented by the following formula (ED2) (hereinafter, these compounds may be referred to as "ether dimer"). It is also preferable that the resin contains units.

In formula (ED1), R ¹ and R ² each independently represent a hydrogen atom or a hydrocarbon group having 1 to 25 carbon atoms which may have a substituent.
In formula (ED2), R represents a hydrogen atom or an organic group having 1 to 30 carbon atoms. For details of formula (ED2), the description in JP-A No. 2010-168539 can be referred to, the contents of which are incorporated herein. Regarding specific examples of ether dimers, paragraph number 0317 of JP-A-2013-029760 can be referred to, the contents of which are incorporated herein.

Examples of resins containing repeating units derived from ether dimer include resins having the following structure. In the following structural formula, Me represents a methyl group.

The resin used in the present invention may have a polymerizable group. Examples of the polymerizable group include ethylenically unsaturated bond-containing groups such as a vinyl group, a (meth)allyl group, and a (meth)acryloyl group. Commercial products of resins having polymerizable groups include Dianal NR series (manufactured by Mitsubishi Rayon Co., Ltd.), Photomer 6173 (carboxyl group-containing polyurethane acrylate oligomer, manufactured by Diamond Shamrock Co., Ltd.), Viscoat R-264, KS Resist 106 (all manufactured by Osaka Organic Chemical Industry Co., Ltd.), Cyclomer P series (for example, ACA230AA), Plaxel CF200 series (all manufactured by Daicel Corporation), Ebecryl 3800 (manufactured by Daicel UCB Corporation), Acrycure Examples include RD-F8 (manufactured by Nippon Shokubai Co., Ltd.) and DP-1305 (manufactured by Fuji Fine Chemicals Co., Ltd.).

As the resin used in the present invention, a resin having an epoxy group can also be used. Examples of the resin having an epoxy group include a resin having a repeating unit represented by formula (E-1).

In formula (E-1), X ^1E represents the main chain of the repeating unit, and L ^1E represents a single bond or a divalent linking group.

In formula (E-1), the main chain of the repeating unit represented by X ^1E is not particularly limited. There is no particular restriction as long as it is a linking group formed from a known polymerizable monomer. For example, poly(meth)acrylic linking groups, polyalkyleneimine linking groups, polyester linking groups, polyurethane linking groups, polyurea linking groups, polyamide linking groups, polyether linking groups, polystyrene linking groups, etc. A poly(meth)acrylic linking group and a polystyrene linking group are preferred, and a poly(meth)acrylic linking group is more preferred.

In formula (E-1), the divalent linking group represented by L ^1E includes 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), Examples thereof include -NH-, -SO-, -SO ₂ -, -CO-, -O-, -COO-, -OCO-, -S-, and groups formed by combining two or more of these. The alkylene group may be linear, branched, or cyclic, and preferably linear or branched. Further, the alkylene group may have a substituent or may be unsubstituted. Examples of the substituent include a hydroxy group and an alkoxy group.

It is also preferable that the resin having an epoxy group further has a repeating unit having a cyclic alkyl group. According to this aspect, the bulkiness of the cyclic alkyl group makes the resin rigid and can be expected to have the effect of improving the solvent resistance of the cured film. Examples of the cyclic alkyl group include a dicyclopentanyl group and a cyclohexyl group, and a dicyclopentanyl group is preferred because it is bulkier and further improves the solvent resistance of the cured film. Examples of the repeating unit having a cyclic alkyl group include a repeating unit represented by formula (E-2).

In formula (E-2), X ^2E represents a main chain of repeating units, L ^2E represents a single bond or a divalent linking group, and Z ^2E represents a cyclic alkyl group. The main chain of the repeating unit represented by X ^2E in formula (E-2) includes the structure described as the main chain of the repeating unit represented by X ^1E in formula (E-2). The divalent linking group represented by L ^2E in formula (E-2) includes groups having the structure described as the divalent linking group represented by L ^2E in formula (E-1). The cyclic alkyl group represented by Z ^2E includes the groups mentioned above, and is preferably a dicyclopentanyl group.

It is also preferable that the resin having an epoxy group further contains a repeating unit derived from an aromatic vinyl compound (preferably a styrene compound).

The epoxy equivalent of the resin having an epoxy group (=molecular weight of the resin having an epoxy group/number of epoxy groups) is preferably from 50 to 400 g/eq, more preferably from 100 to 300 g/eq, and from 150 to 300 g/eq. More preferably, it is 250 g/eq.

It is also preferable that the resin used in the present invention contains a resin b1 containing a repeating unit derived from the compound represented by formula (I). By using resin b1, it has excellent curability at low temperatures and can form a cured film that is sufficiently cured even by heating at relatively low temperatures. Furthermore, it is easy to form a cured film with excellent spectral properties.

X ¹ represents O or NH, and is preferably O.
R ¹ represents a hydrogen atom or a methyl group.
L ¹ represents a divalent linking group. Examples of divalent linking groups include hydrocarbon groups, heterocyclic groups, -NH-, -SO-, -SO ₂ -, -CO-, -O-, -COO-, -OCO-, -S-, and these Examples include a group formed by combining two or more of the following. Examples of the hydrocarbon group include an alkyl group and an aryl group. The heterocyclic group may be a non-aromatic heterocyclic group or an aromatic heterocyclic group. The heterocyclic group preferably has a 5-membered ring or a 6-membered ring. Examples of the heteroatoms constituting the heterocyclic group include nitrogen atoms, oxygen atoms, and sulfur atoms. The number of heteroatoms constituting the heterocyclic group is preferably 1 to 3. The heterocyclic group may be a single ring or a condensed ring. The hydrocarbon group and the heterocyclic group may have a substituent. Examples of the substituent include an alkyl group, an aryl group, a hydroxy group, and a halogen atom.
R ¹⁰ represents a substituent. Examples of the substituent represented by R ¹⁰ include the substituent T shown below, preferably a hydrocarbon group, and more preferably an alkyl group which may have an aryl group as a substituent.
m represents an integer of 0 to 2, preferably 0 or 1, and more preferably 0.
p represents an integer of 0 or more, preferably 0 to 4, more preferably 0 to 3, even more preferably 0 to 2, even more preferably 0 or 1, and particularly preferably 1.

(Substituent T)
Examples of the substituent T include a halogen atom, a cyano group, a nitro group, a hydrocarbon group, a heterocyclic group, -ORt ¹ , -CORt ¹ , -COORt ¹ , -OCORt ¹ , -NRt ¹ Rt ² , -NHCORt ¹ , - CONRt ¹ Rt ² , -NHCONRt ¹ Rt ² , -NHCOORt ¹ , -SRt ¹ , -SO ₂ Rt ¹ , -SO ₂ ORt ¹ , -NHSO ₂ Rt ¹ or -SO ₂ NRt ¹ Rt ² can be mentioned. Rt ¹ and Rt ² each independently represent a hydrogen atom, a hydrocarbon group, or a heterocyclic group. 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.
Examples of the hydrocarbon group include an alkyl group, an alkenyl group, an alkynyl group, and an aryl group. The number of carbon atoms in the alkyl group is preferably 1 to 30, more preferably 1 to 15, even more preferably 1 to 8. The alkyl group may be linear, branched, or cyclic, preferably linear or branched, and more preferably branched.
The alkenyl group preferably has 2 to 30 carbon atoms, more preferably 2 to 12 carbon atoms, and particularly preferably 2 to 8 carbon atoms. The alkenyl group may be linear, branched, or cyclic, and preferably linear or branched.
The number of carbon atoms in the alkynyl group is preferably 2 to 30, more preferably 2 to 25. The alkynyl group may be linear, branched, or cyclic, and preferably linear or branched.
The number of carbon atoms in the aryl group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 12.
The heterocyclic group may be a single ring or a condensed ring. The heterocyclic group is preferably a single ring or a condensed ring having 2 to 4 condensed rings. The number of heteroatoms constituting the ring of the heterocyclic group is preferably 1 to 3. The heteroatom 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 hydrocarbon group and the heterocyclic group may have a substituent or may be unsubstituted. Examples of the substituent include the substituents described above as the substituent T.

The compound represented by formula (I) is preferably a compound represented by formula (I-1) below.

X ¹ represents O or NH, and is preferably O.
R ¹ represents a hydrogen atom or a methyl group.
R ² , R ³ and R ¹¹ each independently represent a hydrocarbon group.
The hydrocarbon group represented by R ² and R ³ is preferably an alkylene group or an arylene group, and more preferably an alkylene group. The alkylene group preferably has 1 to 10 carbon atoms, more preferably 1 to 5 carbon atoms, even more preferably 1 to 3 carbon atoms, and particularly preferably 2 or 3 carbon atoms. The hydrocarbon group represented by R ¹¹ is preferably an alkyl group which may have an aryl group as a substituent, and more preferably an alkyl group having an aryl group as a substituent. The number of carbon atoms in the alkyl group is preferably 1 to 20, more preferably 1 to 10, even more preferably 1 to 5. In addition, when the alkyl group has an aryl group as a substituent, the number of carbon atoms in the alkyl group means the number of carbon atoms in the alkyl moiety.
R ¹² represents a substituent. Examples of the substituent represented by R ¹² include the above-mentioned substituent T.
n represents an integer of 0 to 15, preferably an integer of 0 to 5, more preferably an integer of 0 to 4, even more preferably an integer of 0 to 3.
m represents an integer from 0 to 2, preferably 0 or 1, and more preferably 0.
p1 represents an integer of 0 or more, preferably 0 to 4, more preferably 0 to 3, even more preferably 0 to 2, even more preferably 0 to 1, and particularly preferably 0.
q1 represents an integer of 1 or more, preferably 1 to 4, more preferably 1 to 3, even more preferably 1 to 2, and particularly preferably 1.

The compound represented by formula (I) is preferably a compound represented by formula (III) below.

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, even more preferably 1 to 3 carbon atoms, and particularly 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, even more preferably an integer of 0 to 3.

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

In resin b1, the proportion of repeating units derived from the compound represented by formula (I) (preferably formula (III)) among all repeating units is preferably 1 to 99 mol%. The lower limit is more preferably 3 mol% or more, and even more preferably 5 mol% or more. The upper limit is more preferably 95 mol% or less, and even more preferably 90 mol% or less.

The resin b1 may further contain repeating units other than the repeating units derived from the compound represented by formula (I). For example, the resin b1 can contain repeating units derived from (meth)acrylate, and preferably contains repeating units derived from alkyl (meth)acrylate. The number of carbon atoms in the alkyl moiety of the alkyl (meth)acrylate is preferably 3 to 10, more preferably 3 to 8, and even more preferably 3 to 6. Preferred specific examples of alkyl (meth)acrylates include n-butyl (meth)acrylate. Moreover, it is also preferable that the resin b1 contains a repeating unit having an acid group.

It is also preferable that the resin used in the present invention contains a resin having a repeating unit containing a blocked isocyanate group (hereinafter also referred to as resin BI). According to this aspect, better low-temperature curability can be obtained, and a cured film that is sufficiently cured can be formed even when heated at a relatively low temperature.

The blocked isocyanate group that the resin BI has is preferably a group that can generate an isocyanate group by heat, and more preferably a group that can generate an isocyanate group by heat at 70 to 150 ° C. preferable. Examples of blocked isocyanate groups include groups in which an isocyanate group is chemically protected by a blocking agent. A blocked isocyanate group is a group having a structure in which the isocyanate group is protected by a compound called a blocking agent, and does not show reactivity as an isocyanate group at room temperature (for example, 10 to 30°C), but when heated etc. This is a group with a structure in which an isocyanate group is generated by the removal of a blocking agent from a blocked isocyanate group.

The blocked isocyanate group that the resin BI has is more preferably a group that can generate an isocyanate group by heating at 70 to 150°C. That is, the isocyanate formation temperature of the blocked isocyanate group (blocking agent desorption temperature) is preferably 70 to 150°C. The lower limit of the isocyanate generation temperature is preferably 75°C or higher, more preferably 80°C or higher, from the viewpoint of storage stability. The upper limit of the isocyanate formation temperature is preferably 130°C or lower, more preferably 120°C or lower, from the viewpoint of curability.

Blocking agents that protect the isocyanate group of the blocked isocyanate group include oxime compounds, lactam compounds, phenol compounds, alcohol compounds, amine compounds, active methylene compounds, pyrazole compounds, mercaptan compounds, imidazole compounds, imide compounds, etc. , and from the viewpoint of ease of deprotection reaction, oxime compounds, lactam compounds, active methylene compounds, and pyrazole compounds are preferred, oxime compounds, active methylene compounds, and pyrazole compounds are more preferred, and oxime compounds are even more preferred.

Examples of oxime compounds include acetoxime, formaldoxime, cyclohexane oxime, methyl ethyl ketone oxime, cyclohexanone oxime, and benzophenone oxime.
Examples of lactam compounds include ε-caprolactam and γ-butyrolactam.
Examples of the phenol compound include phenol, naphthol, cresol, xylenol, and halogen-substituted phenol.
Examples of the alcohol compound include methanol, ethanol, propanol, butanol, cyclohexanol, ethylene glycol monoalkyl ether, propylene glycol monoalkyl ether, and alkyl lactate.
Amine compounds include primary amines and secondary amines. The amine compound may be an aromatic amine, an aliphatic amine, or an alicyclic amine, and specific examples include aniline, diphenylamine, ethyleneimine, and polyethyleneimine.
Examples of the active methylene compound include diethyl malonate, dimethyl malonate, ethyl acetoacetate, and methyl acetoacetate.
Examples of the pyrazole compound include pyrazole, methylpyrazole, and dimethylpyrazole.
Examples of mercaptan compounds include alkyl mercaptans and aryl mercaptans.
Imidazole compounds include imidazole, 1-methylimidazole, 1-ethylimidazole, 1,2-dimethylimidazole, 2-ethyl-4-methylimidazole, 1-benzyl-2-methylimidazole, 1-benzyl-2-phenylimidazole. etc.
Examples of the imide compound include maleimide, succinimide, phthalimide, and derivatives thereof.

The molecular weight of the blocking agent is preferably 50 to 200, more preferably 50 to 160, even more preferably 50 to 120. When the molecular weight of the blocking agent is 50 or more, desorption of the blocking agent at room temperature can be suppressed and the storage stability of the colored composition can be improved. When the molecular weight of the blocking agent is 200 or less, it is easy to remove the blocking agent by heat treatment at a low temperature (for example, 150° C. or lower) to proceed with the curing reaction, and it is easy to form a sufficiently cured cured film. Therefore, it is easy to form a cured film in which color migration with other colors is suppressed.

As the blocking agent, methyl ethyl ketone oxime, cyclohexanone oxime, acetoxime, diethyl malonate, ethyl acetoacetate, ε-caprolactam, γ-butyrolactam, and pyrazole are preferred, methyl ethyl ketone oxime, acetoxime, diethyl malonate, and pyrazole are more preferred, and methyl ethyl ketone oxime is more preferred. More preferred.

Examples of the repeating unit containing a blocked isocyanate group include a repeating unit represented by the following formula (Bi-1).

In formula (Bi-1), X ¹ represents a main chain of a repeating unit, L ¹ represents a single bond or a divalent linking group, and Z ¹ represents a blocked isocyanate group.

In formula (Bi-1), the main chain of the repeating unit represented by X ¹ is not particularly limited. There is no particular restriction as long as it is a linking group formed from a known polymerizable monomer. For example, poly(meth)acrylic linking groups, polyalkyleneimine linking groups, polyester linking groups, polyurethane linking groups, polyurea linking groups, polyamide linking groups, polyether linking groups, polystyrene linking groups, etc. A poly(meth)acrylic linking group and a polystyrene linking group are preferred, and a poly(meth)acrylic linking group is more preferred.

In formula (Bi-1), the divalent linking group represented by L ¹ includes 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), Examples thereof include -NH-, -SO-, -SO ₂ -, -CO-, -O-, -COO-, -OCO-, -S-, and groups formed by combining two or more of these. The alkylene group may be linear, branched, or cyclic, and preferably linear or branched. Further, the alkylene group may have a substituent or may be unsubstituted. Examples of the substituent include a hydroxy group and an alkoxy group.

In formula (Bi-1), Z ¹ represents a blocked isocyanate group.

In the resin BI, the content of repeating units containing blocked isocyanate groups is preferably 45% by mass or more, more preferably 50% by mass or more, and 55% by mass or more of the total repeating units of the resin BI. More preferably. The upper limit can be 100% by mass, 95% by mass or less, or 85% by mass or less.

The colored composition of the present invention can contain a resin as a dispersant. Examples of the dispersant include acidic dispersants (acidic resins) and basic dispersants (basic resins). Here, the acidic dispersant (acidic resin) refers to a resin in which the amount of acid groups is greater than the amount of basic groups. The acidic dispersant (acidic resin) is preferably a resin in which the amount of acid groups accounts for 70 mol% or more when the total amount of acid groups and basic groups is 100 mol%, and substantially More preferred is a resin consisting only of acid groups. The acid group that the acidic dispersant (acidic resin) has is preferably a carboxyl group. The acid value of the acidic dispersant (acidic resin) is preferably 10 to 105 mgKOH/g. Moreover, the basic dispersant (basic resin) refers to a resin in which the amount of basic groups is greater than the amount of acid groups. The basic dispersant (basic resin) is preferably a resin in which the amount of basic groups exceeds 50 mol% when the total amount of acid groups and basic groups is 100 mol%. The basic group that the basic dispersant has is preferably an amino group.

Examples of dispersants include polymeric dispersants [e.g., polyamide amines and their salts, polycarboxylic acids and their salts, high molecular weight unsaturated acid esters, modified polyurethanes, modified polyesters, modified poly(meth)acrylates, (meth) Acrylic copolymers, naphthalene sulfonic acid formalin condensates], polyoxyethylene alkyl phosphates, polyoxyethylene alkylamines, alkanolamines, and the like. Polymer dispersants can be further classified into linear polymers, terminal-modified polymers, graft-type polymers, and block-type polymers based on their structures. The polymer dispersant adsorbs to the surface of particles such as pigments and acts to prevent reagglomeration. Therefore, preferable structures include terminal-modified polymers, graft-type polymers, and block-type polymers that have an anchor site on the surface of particles such as pigments. Further, dispersants described in paragraph numbers 0028 to 0124 of JP-A No. 2011-070156 and dispersants described in JP-A No. 2007-277514 are also preferably used.

In the present invention, a graft copolymer can also be used as a dispersant. For details of the graft copolymer, the description in paragraphs 0131 to 0160 of JP-A No. 2012-137564 can be referred to, the contents of which are incorporated herein. Furthermore, in the present invention, an oligoimine copolymer containing a nitrogen atom in at least one of the main chain and the side chain can also be used as the dispersant. Regarding the oligoimine copolymer, the descriptions in paragraphs 0102 to 0174 of JP-A No. 2012-255128 can be referred to, the contents of which are incorporated herein.

Dispersants are also available as commercial products, and specific examples include the Disperbyk series (for example, Disperbyk-111, 2001, etc.) manufactured by Byk Chemie, and the Solsperse series (manufactured by Japan Lubrizol Co., Ltd.). Examples include Solsperse 20000, 76500, etc.), Ajisperse series manufactured by Ajinomoto Fine Techno, Inc., and the like. Further, the product described in paragraph number 0129 of JP 2012-137564A and the product described in paragraph number 0235 of JP 2017-194662A can also be used as a dispersant.

The content of the resin is preferably 5 to 50% by mass based on the total solid content of the coloring composition. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less. The lower limit is preferably 7.5% by mass or more, more preferably 10% by mass or more.
Further, the content of the resin is preferably 25 to 500 parts by weight per 100 parts by weight of the polymerizable compound. The upper limit is preferably 250 parts by mass or less, more preferably 150 parts by mass or less. The lower limit is preferably 50 parts by mass or more, more preferably 75 parts by mass or more.
Further, the content of the resin b1 described above in the total amount of resin contained in the coloring composition of the present invention is preferably 0.1 to 100% by mass, more preferably 5 to 100% by mass. The upper limit can be 90% by mass or less, 80% by mass or less, or 70% by mass or less.
Further, the content of the resin b1 mentioned above is preferably 5 to 50% by mass based on the total solid content of the coloring composition. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less. The lower limit is preferably 10% by mass or more, more preferably 12.5% by mass or more.
Further, the content of the above-mentioned resin BI in the total amount of resin contained in the coloring composition of the present invention is preferably 0.1 to 100% by mass, more preferably 5 to 100% by mass. The upper limit can be 90% by mass or less, 80% by mass or less, or 70% by mass or less.
Further, the content of the above-mentioned resin BI is preferably 5 to 50% by mass based on the total solid content of the coloring composition. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less. The lower limit is preferably 10% by mass or more, more preferably 12.5% by mass or more.

<<furyl group-containing compound>>
The colored composition of the present invention preferably contains a compound containing a furyl group (hereinafter also referred to as a furyl group-containing compound). According to this aspect, curability at low temperatures is excellent. For example, when a compound containing an ethylenically unsaturated bond-containing group is used as a polymerizable compound, the furyl group possessed by the furyl group-containing compound and the ethylenically unsaturated bond-containing group possessed by the polymerizable compound are Diels- Due to the Alder reaction, bonds are formed even at low temperatures of 150° C. or lower, so it is excellent in low-temperature curing.

The structure of the furyl group-containing compound is not particularly limited as long as it contains a furyl group (a group obtained by removing one hydrogen atom from furan). As the furyl group-containing compound, compounds described in paragraph numbers 0049 to 0089 of JP-A No. 2017-194662 can be used. Moreover, as the furyl group-containing compound, JP-A No. 2000-233581, JP-A 1994-271558, JP-A 1994-293830, JP-A 1996-239421, JP-A 1998-508655, Described in JP-A No. 2000-001529, JP-A No. 2003-183348, JP-A No. 2006-193628, JP-A No. 2007-186684, JP-A No. 2010-265377, JP-A No. 2011-170069, etc. It is also possible to use compounds that are

The furyl group-containing compound may be a monomer or a polymer. Polymers are preferred because they tend to improve the durability of the resulting film. In the case of polymers, the weight average molecular weight is preferably 2,000 to 70,000. The upper limit is preferably 60,000 or less, more preferably 50,000 or less. The lower limit is preferably 3000 or more, more preferably 4000 or more, and even more preferably 5000 or more. In the case of monomers, the molecular weight is preferably less than 2,000, more preferably 1,800 or less, and even more preferably 1,500 or less. The lower limit is preferably 100 or more, more preferably 150 or more, and even more preferably 175 or more. Note that the polymer type furyl group-containing compound is also a component that corresponds to the resin in the coloring composition of the present invention. Further, the furyl group-containing compound having a polymerizable group is a component that also corresponds to the polymerizable compound in the coloring composition of the present invention.

Examples of monomer-type furyl group-containing compounds (hereinafter also referred to as furyl group-containing monomers) include compounds represented by the following formula (fur-1).
In the formula, Rf ¹ represents a hydrogen atom or a methyl group, and Rf ² represents a divalent linking group.

The divalent linking group represented by Rf ² includes an alkylene group, an arylene group, -O-, -CO-, -COO-, -OCO-, -NH-, -S-, and a combination of two or more of these. Examples include groups. The alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms, and still more preferably 1 to 15 carbon atoms. The alkylene group may be linear, branched, or cyclic. The number of carbon atoms in the arylene group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 10. The alkylene group and arylene group may have a substituent. Examples of the substituent include a hydroxy group.

The furyl group-containing monomer is preferably a compound represented by the following formula (fur-1-1).
In the formula, Rf ¹ represents a hydrogen atom or a methyl group, Rf ¹¹ represents -O- or -NH-, and Rf ¹² represents a single bond or a divalent linking group. The divalent linking group represented by Rf ¹² includes an alkylene group, an arylene group, -O-, -CO-, -COO-, -OCO-, -NH-, -S-, and a combination of two or more of these. Examples include groups. The alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms, and still more preferably 1 to 15 carbon atoms. The alkylene group may be linear, branched, or cyclic. The number of carbon atoms in the arylene group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 10. The alkylene group and arylene group may have a substituent. Examples of the substituent include a hydroxy group.

Specific examples of furyl group-containing monomers include compounds having the following structure. In the following structural formula, Rf ¹ represents a hydrogen atom or a methyl group.

The polymer-type furyl group-containing compound (hereinafter also referred to as furyl group-containing polymer) is preferably a resin containing a repeating unit containing a furyl group, and a repeating unit derived from a compound represented by the above formula (fur-1). More preferably, it is a resin containing units. In the furyl group-containing polymer, the proportion of repeating units containing a furyl group among all repeating units is preferably 30 to 70% by mass. The lower limit is preferably 35% by mass or more, more preferably 40% by mass or more. The upper limit is preferably 65% by mass or less, more preferably 60% by mass or less. The concentration of furyl groups in the furyl group-containing polymer is preferably 0.5 to 6.0 mmol, more preferably 1.0 to 4.0 mmol per gram of the furyl group-containing polymer. When the concentration of the furyl group is 0.5 mmol or more, preferably 1.0 mmol or more, it is easy to form a cured film with excellent solvent resistance. When the concentration of the furyl group is 6.0 mmol or less, preferably 4.0 mmol or less, the coloring composition has good stability over time.

In addition to the repeating unit having a furyl group, the furyl group-containing polymer may contain a repeating unit having an acid group and/or a repeating unit having a polymerizable group. Examples of acid groups include carboxyl groups, phosphoric acid groups, sulfo groups, and phenolic hydroxy groups. Examples of the polymerizable group include ethylenically unsaturated bond-containing groups such as a vinyl group, a (meth)allyl group, and a (meth)acryloyl group. When the furyl group-containing polymer contains a repeating unit having an acid group, the acid value of the furyl group-containing polymer is preferably 10 to 200 mgKOH/g, more preferably 40 to 130 mgKOH/g. The proportion of repeating units having an acid group is preferably 2 to 25% by mass of all repeating units in the furyl group-containing polymer. The lower limit is preferably 4% by mass or more, more preferably 5% by mass or more. The upper limit is preferably 20% by mass or less, more preferably 15% by mass or less. When the furyl group-containing polymer contains a repeating unit having a polymerizable group, the proportion of the repeating unit having a polymerizable group is preferably 20 to 60% by mass of all repeating units of the furyl group-containing polymer. The lower limit is preferably 25% by mass or more, more preferably 30% by mass or more. The upper limit is preferably 55% by mass or less, more preferably 50% by mass or less. When the furyl group-containing polymer contains a repeating unit having a polymerizable group, it is easier to form a cured film with better solvent resistance.

The furyl group-containing polymer can be produced by the method described in paragraph numbers 0052 to 0101 of JP 2017-194662A.

The content of the furyl group-containing compound is preferably 0.1 to 70% by mass based on the total solid content of the coloring composition. The lower limit is preferably 2.5% by mass or more, more preferably 5.0% by mass or more, and even more preferably 7.5% by mass or more. The upper limit is preferably 65% by mass or less, more preferably 60% by mass or less, and even more preferably 50% by mass or less.
Further, when a furyl group-containing polymer is used as the furyl group-containing compound, the content of the furyl group-containing polymer in the resin contained in the coloring composition is preferably 0.1 to 100% by mass. The lower limit is preferably 10% by mass or more, more preferably 15% by mass or more. The upper limit is preferably 90% by mass or less, more preferably 80% by mass or less.
In addition, when the resin used in the coloring composition of the present invention contains the resin b1 described above and a furyl group-containing polymer is used as the furyl group-containing compound, the content of the frill group-containing polymer is The amount is preferably 10 to 200 parts by weight per 100 parts by weight. The upper limit is preferably 175 parts by mass or less, and preferably 150 parts by mass or less. The lower limit is preferably 25 parts by mass or more, and preferably 150 parts by mass or more. By using the resin b1 and the furyl group-containing polymer in combination, it is easy to form a cured film that has excellent curability at low temperatures and excellent spectral properties. Furthermore, when the ratio of both is within the above range, it can be expected that the durability of the resulting film can be further improved.

<<Compound having epoxy group>>
The colored composition of the present invention can further contain a compound having an epoxy group. As the compound having an epoxy group, a compound having two or more epoxy groups in one molecule is preferable. It is preferable to have 2 to 100 epoxy groups in one molecule. The upper limit may be, for example, 10 or less, or 5 or less. The epoxy equivalent of the compound having an epoxy group (=molecular weight of the compound having an epoxy group/number of epoxy groups) is preferably 500 g/eq or less, more preferably 100 to 400 g/eq, and 100 to 300 g /eq is more preferable. The compound having an epoxy group may be either a low-molecular compound (e.g., molecular weight less than 1000) or a macromolecule (e.g., molecular weight 1000 or more; in the case of a polymer, the weight average molecular weight is 1000 or more). . The molecular weight (weight average molecular weight in the case of a polymer) of the compound having an epoxy group is preferably 200 to 100,000, more preferably 500 to 50,000. The upper limit of the molecular weight (in the case of a polymer, weight average molecular weight) is preferably 3,000 or less, more preferably 2,000 or less, and even more preferably 1,500 or less.

Regarding compounds having an epoxy group, see paragraph numbers 0034 to 0036 of JP2013-011869, paragraphs 0147 to 0156 of JP2014-043556, and paragraphs 0085 to 0092 of JP2014-089408. The compounds described in JP-A-2017-179172 can also be used, the contents of which are incorporated herein.

When the colored composition of the present invention contains a compound having an epoxy group, the content of the compound having an epoxy group is preferably 0.1 to 40% by mass based on the total solid content of the colored composition. The lower limit is more preferably 0.5% by mass or more, and even more preferably 1% by mass or more. The upper limit is more preferably 30% by mass or less, and even more preferably 20% by mass or less. The epoxy group-containing compound may be used alone or in combination of two or more. When two or more types are used together, it is preferable that the total amount thereof falls within the above range.

<<Solvent>>
It is preferable that the colored composition of the present invention contains a solvent. Examples of the solvent include organic solvents. There are basically no particular restrictions on the solvent 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, and hydrocarbon solvents. For these details, paragraph number 0223 of International Publication No. 2015/166779 can be referred to, the contents of which are incorporated herein. Further, ester solvents substituted with a cyclic alkyl group and ketone solvents substituted with a cyclic alkyl group can also be preferably used. Specific examples of organic solvents 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, propylene glycol diacetate, 3-methoxybutanol and the like. However, it may be better to reduce the amount of aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, etc.) used as solvents for environmental reasons (for example, 50 mass ppm (parts per (1 million ppm or less, 10 mass ppm or less, 1 mass ppm or less).

In the present invention, it is preferable to use a solvent with a low metal content, and it is preferable that the metal content of the solvent is, for example, 10 mass ppb (parts per billion) or less. If necessary, a solvent at the mass ppt (parts per trillion) level may be used, and such high purity solvents are provided by Toyo Gosei, for example (Kagaku Kogyo Nippo, November 13, 2015).

Examples of methods for removing impurities such as metals from the 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 material of the filter is preferably polytetrafluoroethylene, polyethylene, or nylon.

The solvent may contain isomers (compounds with the same number of atoms but different structures). Moreover, only one type of isomer may be included, or multiple types may be included.

In the present invention, it is preferable that the content of peroxide in the organic solvent is 0.8 mmol/L or less, and it is more preferable that the organic solvent contains substantially no peroxide.

The content of the solvent in the coloring composition is preferably 60 to 95% by mass. The upper limit is preferably 90% by mass or less, more preferably 87.5% by mass or less, and even more preferably 85% by mass or less. The lower limit is preferably 65% by mass or more, more preferably 70% by mass or more, and even more preferably 75% by mass or more. The solvent may be used alone or in combination of two or more. When two or more types are used together, it is preferable that the total amount thereof falls within the above range.

Further, from the viewpoint of environmental regulations, it is preferable that the colored composition of the present invention does not substantially contain environmentally regulated substances. In the present invention, "not substantially containing environmentally controlled substances" means that the content of environmentally controlled substances in the coloring composition is 50 mass ppm or less, preferably 30 mass ppm or less. , more preferably 10 mass ppm or less, particularly preferably 1 mass ppm or less. Examples of environmentally controlled substances include benzene; alkylbenzenes such as toluene and xylene; and halogenated benzenes such as chlorobenzene. These are REACH (Registration Evaluation Authorization and Restriction of Chemicals) rules, PRTR (Pollutant Release and Transfer Registration) It is registered as an environmentally regulated substance under the Volatile Organic Compounds (VOC) Act, VOC (Volatile Organic Compounds) regulations, etc., and its usage and handling are The method is strictly regulated. These compounds may be used as a solvent when producing each component used in the colored composition of the present invention, and may be mixed into the colored composition as a residual solvent. From the viewpoint of human safety and environmental considerations, it is preferable to reduce the amount of these substances as much as possible. Examples of methods for reducing environmentally controlled substances include a method of heating or reducing pressure in the system to raise the temperature above the boiling point of the environmentally controlled substance to distill off the environmentally controlled substances from the system. Furthermore, when distilling off a small amount of environmentally regulated substances, it is also useful to carry out azeotropy with a solvent having the same boiling point as the relevant solvent in order to increase efficiency. In addition, if a compound that has radical polymerizability is contained, a polymerization inhibitor or the like may be added to prevent the radical polymerization reaction from proceeding during vacuum distillation and crosslinking between molecules. You can. These distillation methods can be used at any of the following stages: raw materials, products obtained by reacting raw materials (for example, resin solution or polyfunctional monomer solution after polymerization), or colored compositions prepared by mixing these compounds. It is also possible at this stage.

<<Pigment derivative>>
The colored composition of the present invention can contain a pigment derivative. Examples of the pigment derivative include compounds having a structure in which a portion of the chromophore is substituted with an acid group, a basic group, or a phthalimidomethyl group. The chromophores constituting the pigment derivative include quinoline skeleton, benzimidazolone skeleton, diketopyrrolopyrrole skeleton, azo skeleton, phthalocyanine skeleton, anthraquinone skeleton, quinacridone skeleton, dioxazine skeleton, perinone skeleton, perylene skeleton, thioindigo skeleton, iso Examples include indoline skeleton, isoindolinone skeleton, quinophthalone skeleton, threne skeleton, metal complex skeleton, etc., and quinoline skeleton, benzimidazolone skeleton, diketopyrrolopyrrole skeleton, azo skeleton, quinophthalone skeleton, isoindoline skeleton, and phthalocyanine skeleton are preferable. , an azo skeleton and a benzimidazolone skeleton are more preferred. The acid group possessed by the pigment derivative is preferably a sulfo group or a carboxyl group, and more preferably a sulfo group. The basic group possessed by the pigment derivative is preferably an amino group, and more preferably a tertiary amino group. Specific examples of pigment derivatives include JP-A-56-118462, JP-A-63-264674, JP-A-01-217077, JP-A-03-009961, JP-A-03-026767, JP 03-153780, JP 03-045662, JP 04-285669, JP 06-145546, JP 06-212088, JP 06-240158, JP 06-240158, 10-030063, JP 10-195326, paragraph numbers 0086 to 0098 of International Publication No. 2011/024896, paragraph numbers 0063 to 0094 of International Publication No. 2012/102399, paragraph numbers 0063 to 0094 of International Publication No. 2017/038252, Paragraph number 0082, paragraph number 0171 of JP 2015-151530, paragraph 0162-0183 of JP 2011-252065, JP 2003-081972, JP 5299151, JP 2015-172732 Publication, JP 2014-199308, JP 2014-085562, JP 2014-035351, JP 2008-081565, JP 2019-109512, and JP 2019-133154 Mention may be made of the compounds described.

The content of the pigment derivative is preferably 0.1 to 30 parts by weight based on 100 parts by weight of the pigment. The lower limit of this range is more preferably 0.25 parts by mass or more, even more preferably 0.5 parts by mass or more, particularly preferably 0.75 parts by mass or more, and 1 part by mass or more. It is more preferable that there be. Further, the upper limit of this range is more preferably 25 parts by mass or less, even more preferably 20 parts by mass or less, and particularly preferably 15 parts by mass or less. When the content of the pigment derivative is within the above range, there is an effect that the stability over time is further improved. Only one type of pigment derivative may be used, or two or more types may be used in combination. When two or more types are used together, it is preferable that the total amount thereof falls within the above range.

<<Curing accelerator>>
A curing accelerator may be added to the colored composition of the present invention for the purpose of accelerating the reaction of the polymerizable compound or lowering the curing temperature. Examples of the curing accelerator include polyfunctional thiol compounds having two or more mercapto groups in the molecule. A polyfunctional thiol compound may be added for the purpose of improving stability, odor, resolution, developability, adhesion, and the like. The polyfunctional thiol compound is preferably a secondary alkanethiol, and more preferably a compound represented by formula (T1).
Formula (T1)
(In formula (T1), n represents an integer of 2 to 4, and L represents a divalent to tetravalent linking group.)

In formula (T1), the linking group L is preferably an aliphatic group having 2 to 12 carbon atoms, particularly preferably n is 2 and L is an alkylene group having 2 to 12 carbon atoms.

Further, curing accelerators include methylol compounds (for example, compounds exemplified as crosslinking agents in paragraph number 0246 of JP-A-2015-034963), amines, phosphonium salts, amidine salts, amide compounds (for example, Curing agents described in paragraph number 0186 of JP-A No. 2013-041165), base generators (e.g., ionic compounds described in JP-A No. 2014-055114), cyanate compounds (e.g., JP-A No. 2012-150180) Compounds described in paragraph number 0071 of the publication), alkoxysilane compounds (for example, alkoxysilane compounds having an epoxy group described in JP2011-253054A), onium salt compounds (for example, compounds described in JP2015-034963A) Compounds exemplified as acid generators in paragraph number 0216, compounds described in JP-A No. 2009-180949, etc. can also be used.

When the colored composition of the present invention contains a curing accelerator, the content of the curing accelerator is preferably 0.3 to 8.9% by mass, and 0.8 to 6.4% by mass based on the total solid content of the colored composition. Mass% is more preferred.

<<Silane coupling agent>>
The colored composition of the present invention can contain a silane coupling agent. As the silane coupling agent, a silane compound having at least two functional groups with different reactivities in one molecule is preferred. The silane coupling agent contains at least one group selected from a vinyl group, an epoxy group, a styrene group, a methacrylic group, an amino group, an isocyanurate group, a ureido group, a mercapto group, a sulfide group, and an isocyanate group, and an alkoxy group. A silane compound having the following is preferred. Specific examples of the silane coupling agent include N-2-(aminoethyl)-3-aminopropylmethyldimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-602), N-2-(aminoethyl)-3 -Aminopropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-603), 3-aminopropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-903), 3-aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-903), Kagaku Kogyo Co., Ltd., KBE-903), 3-methacryloxypropyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., KBM-503), 3-glycidoxypropyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd.) manufactured by KBM-403). For details of the silane coupling agent, the description in paragraphs 0155 to 0158 of JP-A-2013-254047 can be referred to, and the contents thereof are incorporated herein. When the colored composition of the present invention contains a silane coupling agent, the content of the silane coupling agent is preferably 0.001 to 20% by mass, and 0.01 to 10% by mass based on the total solid content of the colored composition. is more preferred, and 0.1% by mass to 5% by mass is particularly preferred. The colored composition of the present invention may contain only one kind of silane coupling agent, or may contain two or more kinds of silane coupling agents. When two or more types are included, it is preferable that their total amount falls within the above range.

<<Polymerization inhibitor>>
The colored composition of the present invention can contain a polymerization inhibitor. Polymerization inhibitors include hydroquinone, p-methoxyphenol, di-t-butyl-p-cresol, pyrogallol, t-butylcatechol, benzoquinone, 4,4'-thiobis(3-methyl-6-t-butylphenol), Examples include 2,2'-methylenebis(4-methyl-6-t-butylphenol), N-nitrosophenylhydroxyamine salts (ammonium salts, cerous salts, etc.). When the colored composition of the present invention contains a polymerization inhibitor, the content of the polymerization inhibitor is preferably 0.0001 to 5% by mass based on the total solid content of the colored composition. The colored composition of the present invention may contain only one kind of polymerization inhibitor, or may contain two or more kinds of polymerization inhibitors. When two or more types are included, it is preferable that their total amount falls within the above range.

<<Ultraviolet absorber>>
The colored 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 indole compound, a triazine compound, etc. can be used. For details, please refer to paragraph numbers 0052 to 0072 of JP2012-208374, paragraphs 0317 to 0334 of JP2013-068814, and paragraphs 0061 to 0080 of JP2016-162946. The contents thereof are incorporated herein by reference. Examples of commercially available UV absorbers include UV-503 (manufactured by Daito Kagaku Co., Ltd.). Furthermore, examples of the benzotriazole compound include the MYUA series manufactured by Miyoshi Yushi (Kagaku Kogyo Nippo, February 1, 2016). Furthermore, compounds described in paragraph numbers 0049 to 0059 of Japanese Patent No. 6268967 can also be used as ultraviolet absorbers. When the coloring composition of the present invention contains an ultraviolet absorber, the content of the ultraviolet absorber is preferably 0.1 to 10% by mass, more preferably 0.1 to 5% by mass based on the total solid content of the coloring composition. Preferably, 0.1 to 3% by weight is particularly preferred. Moreover, only one type of ultraviolet absorber may be used, or two or more types may be used. When two or more types are used, it is preferable that the total amount falls within the above range.

<<Surfactant>>
The colored composition of the present invention can contain a surfactant. As the surfactant, various surfactants such as fluorine surfactants, nonionic surfactants, cationic surfactants, anionic surfactants, and silicone surfactants can be used. Examples of the surfactant include the surfactants described in paragraph numbers 0238 to 0245 of International Publication No. 2015/166779, the contents of which are incorporated herein.

In the present invention, the surfactant is preferably a fluorosurfactant. By containing a fluorine-based surfactant in the coloring composition, liquid properties (particularly fluidity) can be further improved, and liquid saving properties can be further improved. Further, it is also possible to form a film with small thickness unevenness.

The fluorine content in the fluorosurfactant 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, and has good solubility in the coloring composition.

Examples of fluorine-based surfactants include surfactants described in paragraph numbers 0060 to 0064 of JP 2014-041318 (corresponding paragraph numbers 0060 to 0064 of WO 2014/017669), and the like; Examples include the surfactants described in paragraph numbers 0117 to 0132 of Publication No. 132503 and the surfactants described in JP-A-2020-008634, the contents of which are incorporated herein. Commercially available fluorosurfactants include Megafac F171, F172, F173, F176, F177, F141, F142, F143, F144, R30, F437, F475, F479, F482, F554, F780, EXP, MFS. -330 (manufactured by DIC Corporation), Florado FC430, FC431, FC171 (manufactured by Sumitomo 3M Corporation), Surflon S-382, SC-101, SC-103, SC-104, SC-105, Examples include SC-1068, SC-381, SC-383, S-393, KH-40 (manufactured by Asahi Glass Co., Ltd.), PolyFox PF636, PF656, PF6320, PF6520, PF7002 (manufactured by OMNOVA), etc. .

In addition, fluorine-based surfactants are acrylic compounds that have a molecular structure with a functional group containing a fluorine atom, and when heated, the functional group containing a fluorine atom is severed and the fluorine atom volatizes. It can be used suitably. Examples of such fluorine-based surfactants include the Megafac DS series manufactured by DIC Corporation (Kagaku Kogyo Nippo (February 22, 2016), Nikkei Sangyo Shimbun (February 23, 2016)), An example is DS-21.

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 fluorine-based surfactants include the fluorine-based surfactants described in JP-A No. 2016-216602, the content of which is incorporated herein.

A block polymer can also be used as the fluorosurfactant. The fluorine-based surfactant has a repeating unit derived from a (meth)acrylate compound having a fluorine atom and two or more (preferably five or more) alkyleneoxy groups (preferably ethyleneoxy group, propyleneoxy group) (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 paragraph numbers 0016 to 0037 of JP-A-2010-032698 and the following compounds are also exemplified as the fluorine-containing surfactant used in the present invention.
The weight average molecular weight of the above compound is preferably 3,000 to 50,000, for example 14,000. In the above compounds, % indicating the proportion of repeating units is mol%.

Further, as the fluorine-containing surfactant, a fluorine-containing polymer having an ethylenically unsaturated bond-containing group in its side chain can also be used. Specific examples include compounds described in paragraph numbers 0050 to 0090 and paragraph numbers 0289 to 0295 of JP-A No. 2010-164965, Megafac RS-101, RS-102, RS-718K manufactured by DIC Corporation, Examples include RS-72-K. Further, as the fluorine-based surfactant, compounds described in paragraph numbers 0015 to 0158 of JP-A No. 2015-117327 can also be used.

Examples of nonionic surfactants include glycerol, trimethylolpropane, trimethylolethane, and their ethoxylates and propoxylates (e.g., glycerol propoxylate, glycerol ethoxylate, etc.), polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, 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), Solsperse 20000 (manufactured by Japan Lubrizol Co., Ltd.), NCW-101, NCW-1001, NCW-1002 (manufactured by Wako Pure Chemical Industries, Ltd.) (manufactured by Kogyo Co., Ltd.), Pionin D-6112, D-6112-W, D-6315 (manufactured by Takemoto Yushi Co., Ltd.), Olfin E1010, Surfynol 104, 400, 440 (manufactured by Nissin Chemical Industry Co., Ltd.) Examples include.

Examples of silicone surfactants include Toray Silicone DC3PA, Toray Silicone SH7PA, Toray Silicone DC11PA, Toray Silicone SH21PA, Toray Silicone SH28PA, Toray Silicone SH29PA, Toray Silicone SH30PA, and Toray Silicone SH8400 (Toray Silicone SH29PA, Toray Silicone SH30PA, Toray Silicone SH8400). ), TSF-4440, TSF-4300, TSF-4445, TSF-4460, TSF-4452 (manufactured by Momentive Performance Materials), KP-341, KF-6001, KF-6002 (manufactured by Momentive Performance Materials), (manufactured by Shin-Etsu Silicone Co., Ltd.), BYK307, BYK323, BYK330 (manufactured by BYK-Chemie Co., Ltd.), and the like.

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. The number of surfactants may be one, or two or more. In the case of two or more types, it is preferable that the total amount falls within the above range.

<<Other additives>>
The colored composition of the present invention may contain various additives, such as fillers, adhesion promoters, antioxidants, and anti-agglomeration agents, if necessary. Examples of these additives include those described in paragraphs 0155 to 0156 of JP-A No. 2004-295116, the contents of which are incorporated herein. Further, as the antioxidant, for example, a phenol compound, a phosphorus compound (for example, the compound described in paragraph number 0042 of JP-A No. 2011-090147), a thioether compound, etc. can be used. Commercially available products include, for example, the ADEKA STAB series (AO-20, AO-30, AO-40, AO-50, AO-50F, AO-60, AO-60G, AO-80, AO- 330, etc.). In addition, as an antioxidant, a polyfunctional hindered amine antioxidant described in International Publication No. 2017/006600, an antioxidant described in International Publication No. 2017/164024, paragraph numbers 0023 to 20 of Patent No. 6268967 Antioxidants described in 0048 can also be used. Only one type of antioxidant may be used, or two or more types may be used. Furthermore, the colored composition of the present invention may contain a latent antioxidant, if necessary. A latent antioxidant is a compound whose moiety that functions as an antioxidant is protected with a protecting group, and is heated at 100 to 250°C or heated at 80 to 200°C in the presence of an acid/base catalyst. Examples include compounds that function as antioxidants by removing protective groups. Specific examples of latent antioxidants include compounds described in WO 2014/021023, WO 2017/030005, and JP 2017-008219. Commercially available products include Adeka Arcles GPA-5001 (manufactured by ADEKA Co., Ltd.). The coloring composition of the present invention also includes the sensitizer and photostabilizer described in paragraph number 0078 of JP-A No. 2004-295116, the thermal polymerization inhibitor described in paragraph number 0081 of the same publication, and the thermal polymerization inhibitor described in paragraph number 0081 of JP-A-2004-295116. The storage stabilizer described in paragraph number 0242 of Publication No. 091940 may be contained.

<Storage container>
The container for storing the colored composition of the present invention is not particularly limited, and any known container can be used. In addition, for the purpose of suppressing impurities from entering raw materials and coloring compositions, we also use multilayer bottles with container inner walls made of 6 types of 6 layers of resin, and bottles with 7 layers of 6 types of resin as storage containers. It is also preferable to use Examples of such a container include the container described in JP-A No. 2015-123351. Further, the inner wall of the container is preferably made of glass, stainless steel, etc. for the purpose of preventing metal elution from the inner wall of the container, increasing the storage stability of the composition, and suppressing deterioration of the components.

<Method for producing colored composition>
The colored composition of the present invention can be produced by mixing the above-mentioned components. When producing a colored composition, the colored composition may be produced by dissolving and/or dispersing all components in a solvent at the same time, or, if necessary, each component may be suitably prepared as two or more solutions or dispersions. The colored composition may be manufactured by mixing these at the time of use (at the time of application).

Further, the production of the colored composition may include a process of dispersing particles such as pigment. In the process of dispersing pigments, mechanical forces used for dispersing pigments include 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. In addition, when pulverizing pigments in a sand mill (bead mill), it is preferable to use small-diameter beads or increase the filling rate of the beads, thereby increasing the pulverizing efficiency. Further, it is preferable to remove coarse particles by filtration, centrifugation, etc. after the pulverization treatment. In addition, the process and dispersion machine for dispersing pigments are described in ``Complete Works of Dispersion Technology, Published by Information Technology Corporation, July 15, 2005'' and ``Dispersion technology centered on suspension (solid/liquid dispersion system) and industrial The process and dispersion machine described in Paragraph No. 0022 of JP-A No. 2015-157893, "Actual Application Comprehensive Data Collection, Published by Management Development Center Publishing Department, October 10, 1978" can be suitably used. Further, in the process of dispersing the pigment, the particles may be made finer in a salt milling step. For the materials, equipment, processing conditions, etc. used in the salt milling process, the descriptions in JP-A No. 2015-194521 and JP-A No. 2012-046629 can be referred to, for example.

In preparing the colored composition, it is preferable to filter the colored composition for the purpose of removing foreign substances and reducing defects. As the filter, any filter that has been conventionally used for filtration and the like can be used without particular limitation. For example, fluororesins such as polytetrafluoroethylene (PTFE), polyamide resins such as nylon (e.g. nylon-6, nylon-6,6), polyolefin resins (high density, ultra-high molecular weight) such as polyethylene, polypropylene (PP), etc. Examples include filters using materials such as polyolefin resin (including polyolefin resin). Among these materials, polypropylene (including high-density polypropylene) and nylon are preferred.

The pore diameter 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 diameter of the filter is within the above range, fine foreign matter can be removed more reliably. Regarding the pore size value of the filter, reference can be made to the nominal value of the filter manufacturer. As the filter, various filters provided by Nippon Pole Co., Ltd. (DFA4201NIEY, etc.), Advantech Toyo Co., Ltd., Nippon Entegris Co., Ltd. (formerly Nippon Microlith Co., Ltd.), Kitz Microfilter Co., Ltd., etc. can be used.

Moreover, it is also preferable to use a fibrous filter medium as the filter. Examples of fibrous filter media include polypropylene fibers, nylon fibers, and glass fibers. Commercially available products include the SBP type series (SBP008, etc.), the TPR type series (TPR002, TPR005, etc.), and the SHPX type series (SHPX003, etc.) manufactured by Loki Techno.

When using filters, different filters (eg, a first filter and a second filter, etc.) may be combined. At this time, filtration with each filter may be performed only once, or may be performed two or more times. Furthermore, filters with different pore diameters within the above-mentioned range may be combined. Alternatively, only the dispersion liquid may be filtered with the first filter, and then filtered with the second filter after other components are mixed.

<Cured film>
The cured film of the present invention is a film obtained by curing the colored composition of the present invention described above. The cured film of the present invention can be used for color filters and the like. Specifically, it can be preferably used as a colored layer (pixel) of a color filter, and more preferably used as a green pixel. The thickness of the cured film of the present invention can be adjusted as appropriate depending on the purpose, but is preferably 0.5 to 3.0 μm. The lower limit is preferably 0.8 μm or more, more preferably 1.0 μm or more, and even more preferably 1.1 μm or more. The upper limit is preferably 2.5 μm or less, more preferably 2.0 μm or less, and even more preferably 1.8 μm or less.

The cured film of the present invention preferably has a maximum transmittance of 65% or more, more preferably 70% or more, and still more preferably 75% or more for light having a wavelength of 495 nm or more and less than 550 nm. .
Further, the average transmittance for light having a wavelength of 495 nm or more and less than 550 nm is preferably 60% or more, more preferably 65% or more, and even more preferably 70% or more.
Further, the transmittance for light with a wavelength of 450 nm is preferably 10% or less, more preferably 5% or less, and even more preferably 2% or less.
Further, the average transmittance for light having a wavelength of 400 nm or more and 450 nm or less is preferably 10% or less, more preferably 5% or less, and even more preferably 1% or less.
Further, the average transmittance for light having a wavelength of 550 nm or more and 600 nm or less is preferably 60% or less, more preferably 50% or less, and even more preferably 40% or less.

<Color filter>
Next, the color filter of the present invention will be explained. The color filter of the present invention has the cured film of the present invention described above. Preferably, the cured film of the present invention is used as a colored pixel of a color filter, more preferably as a green pixel. The color filter of the present invention can be used in solid-state imaging devices and display devices.

The color filter of the present invention preferably has colored pixels of other hues in addition to the pixels of the cured film of the present invention. Examples of colored pixels of other hues include blue pixels, red pixels, yellow pixels, magenta pixels, and cyan pixels. A preferred embodiment of the color filter of the present invention includes an embodiment having green pixels, red pixels, and blue pixels each formed of the cured film of the present invention. The color filter may have a structure in which each colored pixel is embedded in a space partitioned into, for example, a lattice shape by partition walls. In this case, the partition wall preferably has a lower refractive index than each colored pixel. Alternatively, the partition wall may be formed with the configuration described in US Patent Application Publication No. 2018/0040656.

The red pixel preferably used in combination with the pixel of the cured film of the present invention preferably contains a red colorant. The content of the red colorant in the colorant contained in the red pixel is preferably 30% by mass or more, and more preferably 40% by mass or more. The upper limit of the content of the red colorant in the colorant contained in the red pixel may be 100% by mass, may be 99% by mass or less, may be 95% by mass or less, and may be 90% by mass. % or less. Moreover, it is preferable that a red pixel contains 40 mass % or more of red coloring agents, It is more preferable that it contains 50 mass % or more, It is still more preferable that it contains 60 mass % or more. Further, the upper limit of the content of the red colorant is preferably 80% by mass or less, more preferably 70% by mass or less, and even more preferably 60% by mass or less. As the red colorant, C. 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, 264, 269, 270, 272, 279, 291, Examples include red pigments such as C. I. Pigment Red 177, 179, 254, 264, 269, and 272 are more preferred.

Preferably, the red pixel further includes a yellow colorant in addition to the red colorant. The content of the yellow colorant is preferably 3 to 60 parts by weight, more preferably 5 to 50 parts by weight, and preferably 10 to 40 parts by weight based on 100 parts by weight of the red colorant. More preferred. As the yellow colorant, 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 yellow pigments such as C. I. Pigment Yellow 138, 139, 150, and 185 are more preferred.

The red pixel preferably has a maximum transmittance of 5% or less for light with a wavelength of 400 to 550 nm, more preferably 3% or less, and even more preferably 1% or less. Further, the average transmittance for light having a wavelength of 400 to 550 nm is preferably 3% or less, more preferably 1% or less, and even more preferably 0.5% or less. Further, the minimum value of the transmittance for light with a wavelength of 600 to 700 nm is preferably 10% or more, more preferably 25% or more, and even more preferably 40% or more. Further, the average transmittance for light having a wavelength of 600 to 700 nm is preferably 80% or more, more preferably 90% or more, and even more preferably 95% or more.

The blue pixel preferably used in combination with the pixel of the cured film of the present invention preferably contains a blue colorant. The content of the blue colorant in the colorant contained in the blue pixel is preferably 40% by mass or more, and more preferably 60% by mass or more. Further, the blue pixel preferably contains a blue colorant in an amount of 20% by mass or more, more preferably 25% by mass or more, and even more preferably 30% by mass or more. The upper limit of the content of the blue colorant is preferably 80% by mass or less, more preferably 70% by mass or less, and even more preferably 60% by mass or less. As the blue colorant, C.I. 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), Examples include blue pigments such as C.88 (methine type); I. Pigment Blue 15:6 is preferred.

More preferably, the blue pixel further includes at least one selected from a violet colorant and a red colorant in addition to the blue colorant. The content of the purple colorant is preferably 10 to 90 parts by weight, more preferably 20 to 75 parts by weight, and preferably 30 to 60 parts by weight based on 100 parts by weight of the blue colorant. More preferred. The purple colorant and red colorant include C.I. I. Examples include purple pigments such as Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60 (triarylmethane type) and 61 (xanthene type), and xanthene compounds. Examples of the xanthene compound include salt-forming compounds obtained by reacting a resin having a cationic group in the side chain with a xanthene acid dye described in paragraph numbers 0025 to 0077 of JP 2016-180834A. .

The blue pixel preferably has a maximum transmittance of 50% or more for light with a wavelength of 400 to 500 nm, more preferably 60% or more, and even more preferably 70% or more. Further, the average transmittance for light having a wavelength of 400 to 500 nm is preferably 40% or more, more preferably 50% or more, and even more preferably 60% or more. Further, the minimum value of the transmittance for light with a wavelength of 550 to 700 nm is preferably 30% or less, more preferably 20% or less, and even more preferably 10% or less. Further, the average transmittance for light having a wavelength of 550 to 700 nm is preferably 25% or less, more preferably 10% or less, and even more preferably 5% or less.

<Structure>
The structure of the present invention has a green pixel, a red pixel, and a blue pixel obtained using the above-mentioned colored composition of the present invention.
It is preferable that the green pixel has the spectral characteristics described in the above-mentioned section of the cured film of the present invention. Moreover, it is preferable that the red pixel and the blue pixel have the spectral characteristics described in the section of the color filter mentioned above.

<How to form pixels>
A method for forming pixels will be explained. For example, green pixels can be formed by using the colored composition of the present invention.

The pixel formation method includes a step of coating a colored composition on a support to form a colored composition layer, a step of exposing this colored composition layer to light in a pattern, and a step of developing the colored composition layer after exposure. It is preferable to include a step of. In forming pixels, it is preferable to perform the entire process at a temperature of 150° C. or lower. In the present invention, "all steps are performed at a temperature of 150° C. or lower" means that all steps of forming pixels using a coloring composition are performed at a temperature of 150° C. or lower. When a further heating step is provided after developing the exposed colored composition layer, this heating step is also performed at a temperature of 150° C. or lower. The details of each process will be described below.

In the step of forming a colored composition layer, a colored composition is applied onto a support to form a colored composition layer. Examples of the support include a glass substrate, a polycarbonate substrate, a polyester substrate, an aromatic polyamide substrate, a polyamideimide substrate, a polyimide substrate, and the like. An organic light emitting layer may be formed on these substrates. Furthermore, an undercoat layer may be provided on the substrate to improve adhesion with the upper layer, prevent substance diffusion, or flatten the surface. The undercoat layer can also be formed using, for example, a composition obtained by removing the colorant from the coloring composition of the present invention described above. The surface contact angle of the undercoat layer is preferably 20 to 70° when measured with diiodomethane. Further, it is preferable that the angle is 30 to 80° when measured with water. When the surface contact angle of the undercoat layer is within the above range, the resin composition has good paintability. The surface contact angle of the undercoat layer can be adjusted, for example, by adding a surfactant.

A known method can be used to apply the coloring composition. For example, drop casting method; slit coating method; spray method; roll coating method; spin coating method; casting coating method; slit and spin method; Methods described in publications); inkjet (for example, on-demand method, piezo method, thermal method), ejection printing such as nozzle jet, flexo printing, screen printing, gravure printing, reverse offset printing, metal mask printing method, etc. Examples include various printing methods; transfer method using a mold, etc.; nanoimprint method, etc. The application method for inkjet is not particularly limited, and for example, the method shown in "Expanding and Usable Inkjet - Infinite Possibilities Seen in Patents," Published February 2005, Sumibe Techno Research (especially from page 115). 133 pages), and methods described in JP-A No. 2003-262716, JP-A No. 2003-185831, JP-A No. 2003-261827, JP-A No. 2012-126830, JP-A No. 2006-169325, etc. Can be mentioned. Further, regarding the method of applying the coloring composition, the descriptions in International Publication No. 2017/030174 and International Publication No. 2017/018419 can be referred to, and the contents of these are incorporated herein.

The colored composition layer formed on the support may be dried (prebaked). When prebaking is performed, the prebaking temperature is preferably 80°C or lower, more preferably 70°C or lower, even more preferably 60°C or lower, and particularly preferably 50°C or lower. The lower limit can be, for example, 40°C or higher. The pre-bake time is preferably 10 to 3600 seconds. Prebaking can be performed on a hot plate, 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 it to light through a mask having a predetermined mask pattern using a stepper exposure machine, a scanner exposure machine, or the like. This allows the exposed portion to be cured.

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

Moreover, upon exposure, exposure may be performed by continuously irradiating light, or may be performed by irradiating light in a pulsed manner (pulse exposure). Note that pulse exposure is an exposure method in which exposure is performed by repeating light irradiation and pauses in short cycles (for example, on the millisecond level or less). In the case of pulse exposure, the pulse width is preferably 100 nanoseconds (ns) or less, more preferably 50 nanoseconds or less, and even more preferably 30 nanoseconds or less. The lower limit of the pulse width is not particularly limited, but can be 1 femtosecond (fs) or more, and can also be 10 femtoseconds or more. The frequency is preferably 1 kHz or more, more preferably 2 kHz or more, and even more preferably 4 kHz or more. The upper limit of the frequency is preferably 50 kHz or less, more preferably 20 kHz or less, and even more preferably 10 kHz or less. The maximum instantaneous illuminance is preferably 500000000 W/m ² or more, more preferably 100000000 W/m ² or more, and even more preferably 200000000 W/m ² or more. Further, the upper limit of the maximum instantaneous illuminance is preferably 1000000000 W/m ² or less, more preferably 800000000 W/m ² or less, and even more preferably 500000000 W/m ² or less. Note that the pulse width refers to the time during which light is irradiated in a pulse period. Furthermore, frequency refers to the number of pulse periods per second. Moreover, the maximum instantaneous illuminance is the average illuminance within the time during which light is irradiated in the pulse period. Further, the pulse period is a period in which one cycle includes light irradiation and a pause in pulse exposure.

The irradiation amount (exposure amount) is preferably, for example, 0.03 to 2.5 J/cm ² . The lower limit is preferably 0.05 J/cm ² or more, more preferably 0.2 J/cm ² or more, even more preferably 0.5 J/cm ² or more, and 0.8 J/cm ² It is even more preferable that it is above, and even more preferable that it is 1.0 J/cm ² or more. The upper limit is preferably 2.0 J/cm ² or less, more preferably 1.5 J/cm ² or less. Further, the exposure illuminance can be set as appropriate, and is preferably, for example, 50 mW/cm ² to 10 W/cm ² . The lower limit of the exposure illuminance is preferably 500 mW/cm ² or more, more preferably 800 mW/cm ² or more, and even more preferably 1000 mW/cm ² or more. The upper limit of the exposure illuminance is preferably 10 W/cm ² or less, more preferably 7 W/cm ² or less, and even more preferably 5 W/cm ² or less.

The oxygen concentration at the time of exposure can be appropriately selected, and in addition to being carried out in the atmosphere, for example, in a low oxygen atmosphere with an oxygen concentration of 19% by volume or less (for example, 15% by volume, 5% by volume, or substantially The exposure may be performed in an oxygen-free environment (in the absence of oxygen), or in a high oxygen atmosphere with an oxygen concentration of more than 21 volume % (for example, 22 volume %, 30 volume %, or 50 volume %). The oxygen concentration and the exposure illuminance may be appropriately combined. For example, the illumination intensity may be 1 W/cm ² at an oxygen concentration of 10% by volume, or 2 W/cm ² at an oxygen concentration of 35% by volume.

It is also preferable to irradiate with light having a wavelength of more than 350 nm and less than 380 nm (preferably i-line) at an exposure dose of 1 J/cm ^{2 or more} . By exposing in this manner, the colored composition layer can be sufficiently cured, and pixels with excellent properties such as solvent resistance can be manufactured.

Next, the colored composition layer after exposure is developed. That is, the unexposed portions of the colored composition layer are developed and removed to form a pattern (pixel). The unexposed areas of the colored composition layer can be removed by development using a developer. As a result, the unexposed portions of the colored composition layer in the exposure step are eluted into the developer, leaving only the photocured portions. The temperature of the developer is preferably, for example, 20 to 30°C. The development time is preferably 20 to 180 seconds. Furthermore, in order to improve the ability to remove residues, the process of shaking off the developer every 60 seconds and supplying a new developer may be repeated several times.

Examples of the developer include organic solvents and alkaline developers, and alkaline developers are preferably used. As the alkaline developer, an alkaline aqueous solution (alkaline developer) prepared by diluting an alkaline agent with pure water is preferable. Examples of alkaline agents 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 include organic alkaline compounds and inorganic alkaline compounds such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium bicarbonate, sodium silicate, and sodium metasilicate. As for the alkali agent, compounds with a large molecular weight are preferable from the environmental and safety standpoints. 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. Moreover, the developer may further contain a surfactant. Examples of the surfactant include the above-mentioned surfactants, with nonionic surfactants being preferred. For convenience in transportation and storage, the developing solution may be manufactured as a concentrated solution and then diluted to a required concentration before use. The dilution ratio is not particularly limited, but can be set, for example, in the range of 1.5 to 100 times. It is also preferable to wash (rinse) with pure water after development. Further, rinsing is preferably performed by supplying a 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 that discharges the rinsing liquid from the center of the support to the peripheral edge of the support. At this time, when moving the nozzle from the center of the support to the peripheral edge, the nozzle may be moved while gradually decreasing its moving speed. By performing rinsing in this manner, in-plane variations in rinsing can be suppressed. The same effect can also be obtained by gradually reducing the rotational speed of the support while moving the nozzle from the center of the support to the peripheral edge.

It is also preferable to perform additional exposure treatment or heat treatment (post-bake) after drying after development. Additional exposure processing and post-bake are post-development curing processing to complete curing.

When post-baking is performed, the heating temperature is preferably 150° C. or lower. The upper limit of the heating temperature is more preferably 120°C or lower, and even more preferably 100°C or lower. The lower limit of the heating temperature is not particularly limited as long as it can promote curing of the composition, but is more preferably 50°C or higher, and even more preferably 75°C or higher. The heating time is preferably 1 minute or more, more preferably 5 minutes or more, and even more preferably 10 minutes or more. The upper limit is not particularly limited, but from the viewpoint of productivity, it is preferably 20 minutes or less. It is also preferable that post-baking is performed under an inert gas atmosphere. According to this aspect, thermal polymerization can proceed with extremely high efficiency without being inhibited by oxygen, and even when pixels are manufactured at a temperature of 120° C. or lower throughout the entire process, flatness can be maintained. It is possible to manufacture pixels with excellent properties such as solvent resistance and solvent resistance. Examples of the inert gas include nitrogen gas, argon gas, helium gas, and the like, with nitrogen gas being preferred. The oxygen concentration during post-baking is preferably 100 ppm or less.

When additional exposure processing is performed, it is preferable to perform the exposure by irradiating light with a wavelength of 254 to 350 nm. In a more preferred embodiment, the step of exposing the colored composition layer to light in a pattern (exposure before development) involves exposing the colored composition layer to light with a wavelength of more than 350 nm and less than or equal to 380 nm (preferably light with a wavelength of 355 to 370 nm, The additional exposure treatment (exposure after development) is performed by exposing the colored composition layer to light with a wavelength of 254 to 350 nm (preferably light with a wavelength of 254 nm). ) is preferably used for exposure. According to this aspect, the colored composition layer can be moderately cured with the first exposure (exposure before development), and the entire colored composition layer can be almost completely cured with the next exposure (exposure after development). As a result, the colored composition layer can be sufficiently cured even under low temperature conditions, and pixels with excellent properties such as solvent resistance, adhesion, and rectangularity can be formed. When performing the exposure in two stages in this way, the colored composition contains, as a photopolymerization initiator, a photopolymerization initiator A1 having an extinction coefficient of 1.0×10 ³ mL/gcm or more at a wavelength of 365 nm in methanol; A photopolymerization initiator A2 having an extinction coefficient at a wavelength of 365 nm in methanol of 1.0 x 10 ² mL/gcm or less and an extinction coefficient at a wavelength of 254 nm of 1.0 x 10 ³ mL/gcm or more. It is preferable to use

Exposure after development can be performed using, for example, an ultraviolet photoresist curing device. The ultraviolet photoresist curing device may emit light having a wavelength of 254 to 350 nm, as well as other light (for example, i-line).

The irradiation amount (exposure amount) in the exposure after development is preferably 0.03 to 4.0 J/cm ² , more preferably 0.05 to 3.5 J/cm ² . The difference between the wavelength of light used for exposure before development and the wavelength of light used for exposure after development is preferably 200 nm or less, more preferably 100 to 150 nm.

<Display device>
The display device of the present invention has the cured film of the present invention described above. Examples of the display device include a liquid crystal display device and an organic electroluminescence display device. For the definition of a display device and details of each display device, see, for example, "Electronic Display Devices (written by Akio Sasaki, Kogyo Choshokai Co., Ltd., published in 1990)" and "Display Devices (written by Junaki Ibuki, published by Sangyo Tosho Co., Ltd.)". (published in 1989). Further, liquid crystal display devices are described, for example, in "Next Generation Liquid Crystal Display Technology (edited by Tatsuo Uchida, Kogyo Chosenkai Co., Ltd., published in 1994)". There is no particular restriction on the liquid crystal display device to which the present invention can be applied, and for example, the present invention can be applied to various types of liquid crystal display devices described in the above-mentioned "Next Generation Liquid Crystal Display Technology."

The organic electroluminescent display device may have a light source made of a white organic electroluminescent element. The white organic electroluminescent device preferably has a tandem structure. Regarding the tandem structure of organic electroluminescent elements, see Japanese Patent Application Laid-open No. 2003-045676, supervised by Akiyoshi Mikami, "The forefront of organic EL technology development - High brightness, high precision, long life, collection of know-how", Technical Information Association. , pp. 326-328, 2008. The spectrum of white light emitted by the organic EL element preferably has strong maximum emission peaks in the blue region (430 nm to 485 nm), green region (530 nm to 580 nm), and yellow region (580 nm to 620 nm). In addition to these emission peaks, it is more preferable to have a maximum emission peak in the red region (650 nm to 700 nm).

Further, the organic electroluminescent display device may have a lens on the color filter. The shape of the lens can take various shapes derived from optical system design, such as a convex shape and a concave shape. For example, by having a concave shape (concave lens), it is easy to improve the light condensing property. Further, the lens may be in direct contact with the color filter, or other layers such as an adhesion layer or a flattening layer may be provided between the lens and the color filter. Further, the lenses can also be used by being arranged in the manner described in International Publication No. 2018/135189.

<Solid-state imaging device>
The colored composition and cured film of the present invention can also be used in solid-state imaging devices. The structure of the solid-state image sensor is not particularly limited as long as it has the cured film of the present invention and functions as a solid-state image sensor, but examples include the following structure.

The substrate has a plurality of photodiodes that constitute 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 is formed on the light-shielding film to cover the entire surface of the light-shielding film and the light-receiving part of the photodiode. It has a structure in which the cured film of the present invention is provided on the device protective film. Furthermore, a structure having a light condensing means (for example, a microlens, etc., the same applies hereinafter) on the device protective film and below the cured film of the present invention (on the side near the substrate), and A configuration having a means or the like may be used. Further, the cured film of the present invention may be embedded in a space partitioned, for example, in a lattice shape by partition walls. In this case, the partition wall preferably has a lower refractive index than the cured film of the present invention. Examples of imaging devices having such a structure are described in Japanese Patent Application Publication No. 2012-227478, Japanese Patent Application Publication No. 2014-179577, International Publication No. 2018/043654, and US Patent Application Publication No. 2018/0040656. The following devices are mentioned. An imaging device including a solid-state imaging device can be used not only as a digital camera or an electronic device having an imaging function (such as a mobile phone), but also as an in-vehicle camera or a surveillance camera.

The present invention will be specifically described below with reference to Examples. The materials, usage amounts, ratios, processing details, processing procedures, etc. shown in the following examples can be changed as appropriate without departing from the spirit of the present invention. Therefore, the scope of the present invention is not limited to the specific examples shown below.

<Preparation of pigment dispersion>
(Pigment dispersion P-G1)
C. I. After mixing 10.40 parts by mass of Pigment Green 7, 2.60 parts by mass of Pigment Derivative 1, 6.5 parts by mass of Dispersant 1, and 80.50 parts by mass of propylene glycol monomethyl ether acetate, Using zirconia beads with a diameter of 1 mm, the mixture was dispersed in an Eiger mill ("Mini Model M-250MKII" manufactured by Eiger Japan) for 5 hours, and then filtered through a filter with a pore size of 5 μm to prepare a pigment dispersion liquid P-G1.

(Pigment dispersion P-G2)
C. I. After mixing 12.60 parts by mass of Pigment Green 36, 1.26 parts by mass of Pigment Derivative 1, 5.04 parts by mass of Dispersant 1, and 81.10 parts by mass of propylene glycol monomethyl ether acetate, Using zirconia beads with a diameter of 1 mm, the mixture was dispersed in an Eiger mill ("Mini Model M-250MKII" manufactured by Eiger Japan) for 5 hours, and then filtered through a filter with a pore size of 5 μm to prepare a pigment dispersion liquid PG2.

(Pigment dispersion PG3)
C. I. After mixing 12.60 parts by mass of Pigment Green 58, 1.26 parts by mass of Pigment Derivative 1, 5.04 parts by mass of Dispersant 1, and 81.10 parts by mass of propylene glycol monomethyl ether acetate, Using zirconia beads with a diameter of 1 mm, the mixture was dispersed in an Eiger mill ("Mini Model M-250MKII" manufactured by Eiger Japan) for 5 hours, and then filtered through a filter with a pore size of 5 μm to prepare a pigment dispersion liquid PG3.

(Pigment dispersion PY1)
C. I. After mixing 12.0 parts by mass of Pigment Yellow 150, 1.2 parts by mass of Pigment Derivative 2, 6.8 parts by mass of Dispersant 2, and 80.0 parts by mass of propylene glycol monomethyl ether acetate, Using zirconia beads with a diameter of 1 mm, the mixture was dispersed in an Eiger mill ("Mini Model M-250MKII" manufactured by Eiger Japan) for 5 hours, and then filtered through a filter with a pore size of 5 μm to prepare a pigment dispersion liquid PY1.

(Pigment dispersion PY2)
C. I. After mixing 12.0 parts by mass of Pigment Yellow 185, 1.2 parts by mass of Pigment Derivative 2, 6.8 parts by mass of Dispersant 2, and 80.0 parts by mass of propylene glycol monomethyl ether acetate, Using zirconia beads with a diameter of 1 mm, the mixture was dispersed in an Eiger mill ("Mini Model M-250MKII" manufactured by Eiger Japan) for 5 hours, and then filtered through a filter with a pore size of 5 μm to prepare a pigment dispersion liquid PY2.

Pigment derivative 1: Compound with the following structure
Pigment derivative 2: Compound with the following structure
Dispersant 1: Resin with the following structure (Mw = 24000, the number added to the main chain is the molar ratio, and the number added to the side chain is the number of repeating units.)
Dispersant 2: Resin with the following structure

<Preparation of colored composition>
The raw materials shown in the table below were mixed, stirred, and then filtered using a nylon filter (manufactured by Nippon Pall Co., Ltd.) with a pore size of 0.45 μm to prepare a colored composition.

In the above table, the raw materials described with abbreviations are as follows.
(Pigment dispersion)
P-G1 to PG3, PY1, PY2: the above pigment dispersion PG1 to PG3, PY1, PY2

(Photopolymerization initiator)
Initiator 1: Irgacure OXE01 (manufactured by BASF, a compound with the following structure, the extinction coefficient at a wavelength of 365 nm in methanol is 6969 mL/gcm.)
Initiator 2: Omnirad 2959 (manufactured by IGM Resins B.V., a compound with the following structure, the extinction coefficient at a wavelength of 365 nm in methanol is 48.93 mL/gcm, and the extinction coefficient at a wavelength of 254 nm is 3.0 × 10 ⁴ mL/gcm)
Initiator 3: Irgacure OXE02 (manufactured by BASF, a compound with the following structure, the extinction coefficient at a wavelength of 365 nm in methanol is 7749 mL/gcm.)
Initiator 4: Compound with the following structure (absorption coefficient of light with a wavelength of 365 nm in methanol is 18,900 mL/gcm)
Initiator 5: Omnirad 184 (manufactured by IGM Resins B.V., a compound with the following structure, the extinction coefficient at a wavelength of 365 nm in methanol is 88.64 mL/gcm, and the extinction coefficient at a wavelength of 254 nm is 3.3 × 10 ⁴ mL/gcm)
Initiator 6: Compound with the following structure

(Polymerizable compound)
M1: Compound with the following structure
M2: Compound with the following structure
M3: Trimethylolpropane triacrylate (manufactured by Toagosei Co., Ltd., Aronix M-309)
M4: Trimethylolpropane PO modified triacrylate (manufactured by Toagosei Co., Ltd., Aronix M-350)
M5: Dipentaerythritol hexaacrylate (manufactured by Toagosei Co., Ltd., Aronix M-402)

(resin)
Resin A: 40% by mass propylene glycol monomethyl ether acetate solution of a resin with the following structure (Mw = 11000, the numbers appended to the main chain are molar ratios)
Resin B: 40% by mass propylene glycol monomethyl ether acetate solution of resin with the following structure (Mw = 14000, the numbers appended to the main chain are molar ratios)
Resin C: Propylene glycol monomethyl ether acetate solution with solid content of 40% by mass of A10 (furyl group-containing resin) in Example 31 of JP-A No. 2017-194662 Resin D: Described in paragraph number 0208 of JP-A No. 2019-153389 Acrylic resin solution 1 with a solid content of 40% propylene glycol monomethyl ether acetate solution Resin E: Resin with the following structure (having a repeating unit containing a blocked isocyanate group and a repeating unit having a group whose acid group is protected with a protecting group) Resin. The numbers appended to the main chain are mass ratios. 40% by mass propylene glycol monomethyl ether acetate solution of Mw = 7500)
Resin F: Resin with the following structure (resin having a repeating unit containing a blocked isocyanate group and a repeating unit having a group whose acid group is protected with a protecting group. The numerical value appended to the main chain is the mass ratio. Mw = 7200) in 40% by mass propylene glycol monomethyl ether acetate solution
Resin G: Resin with the following structure (resin having a repeating unit containing a blocked isocyanate group and a repeating unit having a group whose acid group is protected with a protecting group. The numerical value appended to the main chain is the mass ratio. Mw = 7100) in 40% by mass propylene glycol monomethyl ether acetate solution
Resin H: 40% by mass propylene glycol monomethyl ether acetate solution of a resin with the following structure (Mw = 11000, the numbers appended to the main chain are molar ratios)

(surfactant)
G1: Compound with the following structure (Mw = 14000, the numerical value of % indicating the proportion of repeating units is mol%, fluorine-based surfactant)

(solvent)
Solvent 1: Propylene glycol monomethyl ether acetate Solvent 2: Cyclohexanone

The content and solid content of each pigment in the colored compositions of Examples and Comparative Examples are shown in the table below. In the table below, PG7 is C. I. Pigment Green 7, and PG36 is C.I. I. Pigment Green 36 and PG58 is C.I. I. Pigment Green 58 and PY150 is C.I. I. Pigment Yellow 150.

<Evaluation>
(Evaluation of storage stability)
The viscosity (V1) of the colored composition obtained above immediately after production was measured using "RE-85L" manufactured by Toki Sangyo Co., Ltd. After this colored composition was allowed to stand for 14 days under a temperature condition of 23° C., the viscosity (V2) was measured. The viscosity increase rate was calculated from the following formula, and the storage stability was evaluated according to the following evaluation criteria. The viscosity of the colored composition was measured with the temperature adjusted to 23°C. The evaluation criteria were as follows, and the evaluation results are listed in the table below.
Viscosity increase rate (%) = [(viscosity (V2) - viscosity (V1)) / viscosity (V1)] x 100
AA: Thickening rate is less than 5%.
A: The viscosity increase rate is 5% or more and less than 10%.
B: The thickening rate is 10% or more and less than 20%.
C: The thickening rate is 20% or more.

(Evaluation of spectral characteristics)
Each colored composition was applied onto a glass substrate using a spin coater so that the finished film thickness after drying was 2.0 μm, and dried on a hot plate at 100° C. for 2 minutes. Thereafter, i-line exposure was performed using an ultra-high pressure mercury lamp under the conditions of an exposure illuminance of 20 mW/cm ² and an exposure amount of 1 J/cm ² . Then, heat treatment (post-bake) was performed for 300 seconds using a 200° C. hot plate, and the resultant was allowed to cool to form a cured film.
For the obtained cured film, the absorbance of light in the wavelength range of 300 to 800 nm was measured using an ultraviolet-visible-near-infrared spectrophotometer (UV3600, manufactured by Shimadzu Corporation) using a glass substrate as a reference. Wavelength 1, wavelength 2, and wavelength 3 were each measured.
Wavelength 1: Out of the absorbance for light with a wavelength of 400 to 700 nm, when the absorbance of light with a wavelength of 450 nm is 1, the absorbance is 0.2.Wavelength 2: Absorbance of light with a wavelength of 400 to 700 nm. Among these, when the absorbance for light with a wavelength of 450 nm is 1, the long wavelength where the absorbance is 0.2 Wavelength 3: The wavelength where the absorbance for light with a wavelength of 400 to 700 nm is the minimum

(Evaluation of light resistance)
Each colored composition was applied onto a glass substrate using a spin coater so that the finished film thickness after drying was 2.0 μm, and dried on a hot plate at 100° C. for 2 minutes. Thereafter, i-line exposure was performed using an ultra-high pressure mercury lamp under the conditions of an exposure illuminance of 20 mW/cm ² and an exposure amount of 1 J/cm ² . Then, heat treatment (post-bake) was performed for 300 seconds using a 200° C. hot plate, and the resultant was allowed to cool to form a cured film.
Regarding the obtained cured film, the transmittance of light in the wavelength range of 400 to 700 nm was measured using MCPD-3000 manufactured by Otsuka Electronics Co., Ltd.
Next, an ultraviolet cut filter (KU-1000100, manufactured by As One Corporation) was attached to the cured film whose transmittance was measured, and the film was tested for 10 minutes using a light resistance tester (Xenon Weather Meter SX75, manufactured by Suga Test Instruments Co., Ltd.). A light resistance test was conducted by irradiating the sample with 10,000 lux light for 50 hours. The temperature inside the test apparatus was set at 63°C. The relative humidity inside the test apparatus was 50%. After conducting a light resistance test, the transmittance of the cured film was measured, the maximum value of the change in transmittance was determined, and the light resistance was evaluated based on the following criteria. The transmittance was measured five times for each sample, and the average value of the three results excluding the maximum and minimum values was used. Further, the maximum value of the change in transmittance means the change in the wavelength at which the change in transmittance of the cured film before and after the light resistance test is the largest in the wavelength range of 400 to 700 nm.
AA: Maximum amount of change in transmittance is 3% or less.
A: The maximum amount of change in transmittance exceeds 3% and is 5% or less.
B: The maximum value of change in transmittance exceeds 5% and is 10% or less.
C: The maximum value of the amount of change in transmittance exceeds 10%.

As shown in the table above, the examples had better evaluations of storage stability and light resistance than the comparative examples. Further, the cured film obtained using the colored composition of the example had high transmittance for light around a wavelength of 500 nm, and had excellent sensitivity as a green pixel.

(Example 35)
Regarding the colored composition of Example 1, an ultraviolet photoresist curing device (UMA-802-HC-552; manufactured by Ushio Electric Co., Ltd.) was used instead of a 200°C hot plate at an exposure dose of 3000 mJ/cm ² . A cured film was produced in the same manner except that exposure was performed. The evaluation results of light resistance were the same as in Example 1.

(Example 36)
Regarding the colored composition of Example 9, a cured film was produced in the same manner except that the heat treatment (post-bake) was performed for 20 minutes using a 100° C. hot plate instead of the 200° C. hot plate. The evaluation results of light resistance were the same as in Example 9.

(Example 37)
Regarding the colored composition of Example 16, except that the i-line stepper exposure device FPA-3000i5+ (manufactured by Canon Inc.) was used instead of the 200° C. hot plate, and the exposure was performed at an exposure dose of 1500 mJ/cm ² . A cured film was prepared in the same manner. The evaluation results of light resistance were the same as in Example 16.

(Example 1000)
A colored composition for forming a green pixel was applied onto a silicon wafer by spin coating so that the film thickness after film formation was 2.0 μm. Then, using a hot plate, it was heated at 100° C. for 2 minutes. Next, using an i-line stepper exposure device FPA-3000i5+ (manufactured by Canon Inc.), exposure was performed at 1000 mJ/cm 2 through a mask with a 2 μm square dot pattern. Next, paddle development was performed at 23° C. for 60 seconds using a 0.3% by mass aqueous solution of tetramethylammonium hydroxide (TMAH). Thereafter, it was rinsed with a spin shower and further washed with pure water. Next, a green colored pattern (green pixels) was formed by heating at 200° C. for 5 minutes using a hot plate. Similarly, the red pixel-forming coloring composition 1 and the blue pixel-forming coloring composition 1 are sequentially patterned to form a red coloring pattern (red pixel) and a blue coloring pattern (blue pixel), respectively, to form a structure. did. The coloring composition of Example 1 was used as the coloring composition for forming green pixels. The red pixel-forming coloring composition 1 and the blue pixel-forming coloring composition 1 will be described later.
The obtained structure was incorporated into an organic electroluminescent display device according to a known method. This organic electroluminescent display device had suitable image recognition ability.

(Example 1001)
Except that instead of the red pixel-forming coloring composition 1 of Example 1000, the red pixel-forming coloring composition 2 was used, and instead of the blue pixel-forming coloring composition 1, the blue pixel-forming coloring material 2 was used. A structure was formed in the same manner as in Example 1000. The red pixel-forming coloring composition 2 and the blue pixel-forming coloring composition 2 will be described later. The obtained structure was incorporated into an organic electroluminescent display device according to a known method. This organic electroluminescent display device had suitable image recognition ability.

[Coloring composition 1 for forming red pixel]
A mixture having the following composition was stirred and mixed to be uniform, and then filtered through a 1.0 μm filter to prepare a red pixel-forming colored composition 1.
Pigment dispersion liquid DR-1...30.2 parts by mass Pigment dispersion liquid DY-1...8.4 parts by mass Resin solution 12...15.2 parts by mass Polymerizable compound (Aronix M-402, Toagosei Co., Ltd.) Co., Ltd.)...0.7 parts by mass Photopolymerization initiator (Irgacure OXE02, manufactured by BASF)...0.3 parts by mass PGMEA...44.2 parts by mass

[Coloring composition 2 for forming red pixels]
A mixture having the following composition was stirred and mixed to be uniform, and then filtered through a 1.0 μm filter to prepare a red pixel-forming colored composition 2.
Pigment dispersion liquid DR-1...30.2 parts by mass Pigment dispersion liquid DY-1...8.4 parts by mass Resin solution 13...15.2 parts by mass Polymerizable compound (Aronix M-402, Toagosei Co., Ltd.) Co., Ltd.)...0.7 parts by mass Photopolymerization initiator (Irgacure OXE02, manufactured by BASF)...0.3 parts by mass PGMEA...44.2 parts by mass

[Coloring composition 1 for forming blue pixels]
A mixture having the following composition was stirred and mixed to be uniform, and then filtered through a 1.0 μm filter to prepare a blue pixel-forming colored composition 1.
Pigment dispersion liquid DB-1...10.4 parts by mass Pigment dispersion liquid DV-1...6.1 parts by mass Resin solution 12...24.2 parts by mass Polymerizable compound (Aronix M-402, Toagosei Co., Ltd.) Co., Ltd.)...0.7 parts by mass Photopolymerization initiator (Irgacure OXE02, manufactured by BASF)...0.3 parts by mass PGMEA...44.2 parts by mass

[Coloring composition 2 for forming blue pixels]
A mixture having the following composition was stirred and mixed to be uniform, and then filtered through a 1.0 μm filter to prepare a blue pixel-forming colored composition 1.
Pigment dispersion liquid DB-1...10.4 parts by mass Pigment dispersion liquid DV-1...6.1 parts by mass Resin solution 13...24.2 parts by mass Polymerizable compound (Aronix M-402, Toagosei Co., Ltd.) Co., Ltd.)...0.7 parts by mass Photopolymerization initiator (Irgacure OXE02, manufactured by BASF)...0.3 parts by mass PGMEA...44.2 parts by mass

Pigment dispersion DR-1 was prepared by the following method.
C. I. After mixing 11.0 parts by mass of Pigment Red 264, 21.5 parts by mass of resin solution 11, 1 part by mass of a dispersant (manufactured by BASF, EFKA4300), and 66.5 parts by mass of PGMEA, Using zirconia beads with a diameter of 1 mm, the mixture was dispersed in an Eiger mill ("Mini Model M-250MKII" manufactured by Eiger Japan) for 5 hours, and then filtered through a filter with a pore size of 5 μm to prepare a pigment dispersion liquid DR-1.

Pigment dispersion DY-1 was prepared by the following method.
C. I. After mixing 23.5 parts by mass of Pigment Yellow 139, 7 parts by mass of resin solution 11, 3 parts by mass of a dispersant (manufactured by BASF, EFKA4300), and 66.5 parts by mass of PGMEA, a diameter of 1 mm was mixed. Using zirconia beads, the mixture was dispersed for 5 hours in an Eiger mill ("Mini Model M-250MKII" manufactured by Eiger Japan), and then filtered through a filter with a pore size of 5 μm to prepare pigment dispersion DY-1.

Pigment dispersion liquid DB-1 was prepared by the following method.
C. I. 11.0 parts by mass of Pigment Blue 15:6, 21.5 parts by mass of Resin Solution 11, 1 part by mass of a dispersant (manufactured by BASF, EFKA4300), and 66.5 parts by mass of PGMEA were mixed. Thereafter, using zirconia beads with a diameter of 1 mm, the mixture was dispersed in an Eiger mill ("Mini Model M-250MKII" manufactured by Eiger Japan) for 5 hours, and then filtered through a filter with a pore size of 5 μm to prepare a pigment dispersion liquid DB-1.

Pigment dispersion liquid DV-1 was prepared by the following method.
C. I. After mixing 11.0 parts by mass of Pigment Violet 23, 21.5 parts by mass of resin solution 11, 1 part by mass of a dispersant (manufactured by BASF, EFKA4300), and 66.5 parts by mass of PGMEA, Using zirconia beads with a diameter of 1 mm, the mixture was dispersed in an Eiger mill ("Mini Model M-250MKII" manufactured by Eiger Japan) for 5 hours, and then filtered through a filter with a pore size of 5 μm to prepare a pigment dispersion liquid DV-1.

The resin solution 11 used was prepared by the following method.
196 parts by mass of PGMEA was charged into a reaction vessel equipped with a thermometer, a cooling tube, a nitrogen gas introduction tube, a dropping tube, and a stirring device in a separable 4-necked flask, and the temperature was raised to 80°C, and the inside of the reaction vessel was replaced with nitrogen. , from the dropping tube, 37.2 parts by mass of n-butyl methacrylate, 12.9 parts by mass of 2-hydroxyethyl methacrylate, 12.0 parts by mass of methacrylic acid, paracumylphenol ethylene oxide modified acrylate (manufactured by Toagosei Co., Ltd., Aronix) A mixture of 20.7 parts by mass of M110) and 1.1 parts by mass of 2,2'-azobisisobutyronitrile was added dropwise over 2 hours. After the dropwise addition was completed, the reaction was continued for an additional 3 hours to obtain a resin (Mw=30,000). After cooling to room temperature, the resin solution 11 was prepared by diluting with PGMEA to adjust the solid content concentration to 20% by mass.

The resin solution 12 used was prepared by the following method.
207 parts by mass of PGMEA was charged into a reaction vessel equipped with a thermometer, a cooling tube, a nitrogen gas introduction tube, a dropping tube, and a stirring device in a separable 4-necked flask, the temperature was raised to 80°C, and the inside of the reaction vessel was replaced with nitrogen. , from the dropping tube, 20 parts by mass of methacrylic acid, 20 parts by mass of paracumylphenol ethylene oxide modified acrylate (manufactured by Toagosei Co., Ltd., Aronix M110), 45 parts by mass of methyl methacrylate, 8.5 parts by mass of 2-hydroxyethyl methacrylate. , and 1.33 parts by mass of 2,2'-azobisisobutyronitrile was added dropwise over 2 hours. After the dropwise addition was completed, the reaction was continued for an additional 3 hours. Next, the entire amount of the obtained solution was stirred while stopping nitrogen gas and injecting dry air for 1 hour, and then cooled to room temperature. A mixture of 6.5 parts by mass of MOI), 0.08 parts by mass of dibutyltin laurate, and 26 parts by mass of cyclohexanone was added dropwise at 70° C. over 3 hours. After the dropwise addition was completed, the reaction was continued for an additional hour to obtain a resin (Mw=18,000). After cooling to room temperature, the resin solution 12 was prepared by diluting with PGMEA to adjust the solid content concentration to 20% by mass.

The resin solution 13 used was prepared by the following method.
207 parts by mass of PGMEA was charged into a reaction vessel equipped with a thermometer, a cooling tube, a nitrogen gas introduction tube, a dropping tube, and a stirring device in a separable 4-necked flask, the temperature was raised to 80°C, and the inside of the reaction vessel was replaced with nitrogen. , from the dropping tube, 20 parts by mass of styrene, 70 parts by mass of glycidyl methacrylate, 2 parts by mass of dicyclopentanyl methacrylate, 15 parts by mass of methyl methacrylate, and 1.33 parts by mass of 2,2'-azobisisobutyronitrile. part of the mixture was added dropwise over 2 hours. After the dropwise addition was completed, the reaction was continued for an additional 3 hours to obtain a resin (Mw=11,000). After cooling to room temperature, it was diluted with PGMEA to adjust the solid content concentration to 40% by mass to prepare resin solution 13.

Claims (19)

A coloring composition comprising a colorant, a polymerizable compound, a photopolymerization initiator , and a resin ,
The coloring agent includes a green coloring agent containing 1% by mass or more of Color Index Pigment Green 7, and a yellow coloring agent containing Color Index Pigment Yellow 150, and a green coloring agent other than Color Index Pigment Green 7 and a color index. Pigment Yellow 150 has a mass ratio of green colorant other than Color Index Pigment Green 7: Color Index Pigment Yellow 150 = 0:100 to 18:82,
The coloring composition has an absorbance of 0.2 when the absorbance for light with a wavelength of 450 nm is 1, and exists in a wavelength range of 550 nm or more and 600 nm or less,
The green colorant further includes color index pigment green 36, and the content of color index pigment green 36 is 0.1 to 100 parts by mass based on 100 parts by mass of color index pigment green 7,
The polymerizable compound is a compound having an ethylenically unsaturated bond-containing group,
The photopolymerization initiator contains an oxime compound,
The content of the polymerizable compound is 5 to 35% by mass based on the total solid content of the colored composition,
The content of the photopolymerization initiator is 3 to 25% by mass based on the total solid content of the colored composition,
In the colored composition, on a mass % basis, the content M of the polymerizable compound in the total solid content of the colored composition, and the content I of the photopolymerization initiator in the total solid content of the colored composition. The ratio (M/I) is 0.1 or more and 20 or less,
The content of the resin is 25 to 500 parts by mass based on 100 parts by mass of the polymerizable compound . The colored composition according to claim 1, wherein the colored composition has a minimum value of absorbance in a wavelength range of 495 nm or more and less than 550 nm among absorbances for light with a wavelength of 400 to 700 nm. The coloring composition has a wavelength range of 470 nm or more and 490 nm or less and a wavelength range of 550 nm or more and 600 nm or less, respectively, at which the absorbance is 0.2 when the absorbance for light with a wavelength of 450 nm is 1. Item 2. Colored composition according to item 1 or 2. The colored composition according to any one of claims 1 to 3, wherein the total amount of Color Index Pigment Green 7 and Color Index Pigment Yellow 150 in the colorant is 80% by mass or more. The colored composition according to any one of claims 1 to 4, wherein the yellow colorant is substantially only Color Index Pigment Yellow 150. The colored composition according to any one of claims 1 to 5, containing 50 to 240 parts by mass of Color Index Pigment Yellow 150 per 100 parts by mass of Color Index Pigment Green 7. The colored composition according to any one of claims 1 to 6, wherein the content of the coloring agent in the total solid content of the colored composition is 20% by mass or more. The colored composition according to any one of claims 1 to 7, wherein the polymerizable compound includes a polymerizable compound having three or more ethylenically unsaturated bond-containing groups. The colored composition according to any one of claims 1 to 8, wherein the polymerizable compound includes a polymerizable compound having an ethylenically unsaturated bond-containing group and an alkyleneoxy group. The colored composition according to any one of claims 1 to 8, wherein the photopolymerization initiator contains an oxime compound and a hydroxyalkylphenone compound. The polymerizable compound includes a polymerizable compound having an ethylenically unsaturated bond-containing group and an alkyleneoxy group,
The colored composition according to any one of claims 1 to 8, wherein the photopolymerization initiator contains an oxime compound and a hydroxyalkylphenone compound. The colored composition according to claim 9 or 11, wherein the polymerizable compound having an ethylenically unsaturated bond-containing group and an alkyleneoxy group is a compound represented by formula (M-2);
Formula (M-2)
In the formula, R ² represents a hydrogen atom or a methyl group, R ¹ represents an alkylene group, m represents an integer of 1 to 30, n represents an integer of 3 or more, L ² represents an n-valent linking group. The colored composition according to any one of claims 1 to 12, which is a colored composition for forming green pixels of a color filter. The coloring composition according to any one of claims 1 to 13, which is a coloring composition for a display device. The colored composition according to any one of claims 1 to 14, which is used to form a cured film at a temperature of 150° C. or lower throughout the entire process. A cured film obtained using the colored composition according to any one of claims 1 to 15. A structure having a green pixel, a red pixel, and a blue pixel, the green pixel being obtained using the colored composition according to any one of claims 1 to 15. A color filter comprising the cured film according to claim 16. A display device comprising the cured film according to claim 16.