Color filter, method for manufacturing color filter, solid-state imaging element, and display device

Abstract

The present invention provides a color filter having green pixels and red pixels, wherein the green pixels contain color index pigment green 7 and color index pigment yellow 150, and the red pixels contain one or more red colorants selected from color index pigment red 177, color index pigment red 264, and color index pigment red 269, and a yellow colorant other than color index pigment yellow 150. The present invention also provides a method for manufacturing the color filter, a solid-state imaging element, and a display device.

Description

Technical Field

[0001] The present invention relates to a color filter, a method for manufacturing the color filter, a solid-state imaging element, and a display device. Background Art

[0002] In various display devices, a color filter including colored pixels of a plurality of colors is used to colorize a display image. For example, Patent Document 1 describes a color filter including red colored pixels, green colored pixels, and blue colored pixels.

[0003] Previous technical literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2002-258267 Summary of the invention

[0006] Technical issues to be solved by the invention

[0007] Devices equipped with color filters are sometimes used in high-temperature environments. Therefore, it is desirable that color filters have less color mixing caused by color shift between pixels of other colors even when exposed to high temperatures.

[0008] Therefore, an object of the present invention is to provide a color filter, a method for manufacturing a color filter, a solid-state imaging element, and a display device that can suppress color mixing caused by color shift between pixels of other colors even when exposed to high temperatures.

[0009] Means for solving technical problems

[0010] The present inventors have conducted intensive research on color filters having green pixels and red pixels, and have found that the above-mentioned object can be achieved by using a substance containing color index pigment green 7 and color index pigment yellow 150 as green pixels and using a color filter containing one or more red colorants selected from color index pigment red 177, color index pigment red 264, and color index pigment red 269 and a yellow colorant other than color index pigment yellow 150 as red pixels, thereby completing the present invention. Therefore, the present invention provides the following contents.

[0011] <1> A color filter having green pixels and red pixels,

[0012] The green pixel contains color index pigment green 7 and color index pigment yellow 150.

[0013] The red pixel includes one or more red colorants selected from the group consisting of Color Index Pigment Red 177, Color Index Pigment Red 264, and Color Index Pigment Red 269, and a yellow colorant other than Color Index Pigment Yellow 150.

[0014] <2> according to <1> The color filter, wherein

[0015] The side surface of the green pixel is in contact with the side surface of the red pixel.

[0016] <3> according to <1> or <2> The color filter, wherein

[0017] The yellow colorant other than the color index pigment yellow 150 contained in the red pixel is at least one selected from the group consisting of isoindoline compounds and quinophthalone compounds.

[0018] <4> according to <1> or <2> The color filter, wherein

[0019] The yellow colorant other than the color index pigment yellow 150 contained in the red pixel is at least one selected from the group consisting of color index pigment yellow 139 and color index pigment yellow 185.

[0020] <5> according to <1> to <4> The color filter as described in any one of the preceding claims, wherein:

[0021] The green pixel includes 50 to 240 parts by mass of the color index pigment yellow 150 with respect to 100 parts by mass of the color index pigment green 7.

[0022] <6> according to <1> to <5> The color filter as described in any one of the preceding claims, wherein:

[0023] The red pixel contains 5 to 100 parts by mass of a yellow colorant other than Color Index Pigment Yellow 150, based on 100 parts by mass of one or more red colorants selected from Color Index Pigment Red 177, Color Index Pigment Red 264, and Color Index Pigment Red 269.

[0024] <7> according to <1> to <6> The color filter as described in any one of the preceding claims, wherein:

[0025] In the light having a wavelength range of 400 to 700 nm, the difference between the wavelength of the light on the short wavelength side showing a transmittance of 5% for the green pixel and the wavelength of the light on the long wavelength side showing a transmittance of 5% for the red pixel is 98 to 115 nm.

[0026] <8> according to <1> to <7> The color filter as described in any one of the preceding claims, wherein:

[0027] In the light having a wavelength range of 400 to 700 nm, the wavelength difference between the long-wavelength light having a transmittance of 30% for the green pixel and the long-wavelength light having a transmittance of 30% for the red pixel is 10 to 33 nm.

[0028] <9> according to <1> to <8> The color filter as described above further comprises a blue pixel.

[0029] <10> A sort of <1> to <9> The method for manufacturing a color filter as described in any one of the preceding claims, comprising:

[0030] A process of forming a green pixel using a green pixel composition comprising a color index pigment green 7 and a color index pigment yellow 150; and

[0031] A step of forming a red pixel using a red pixel composition, the red pixel composition comprising one or more red colorants selected from the group consisting of Color Index Pigment Red 177, Color Index Pigment Red 264, and Color Index Pigment Red 269, and a yellow colorant other than Color Index Pigment Yellow 150.

[0032] <11> according to <10> The method for manufacturing a color filter, wherein:

[0033] In the step of forming the green pixel, the green pixel is formed by photolithography using the green pixel composition.

[0034] In the step of forming the red pixel, the red pixel is formed by photolithography using the red pixel composition.

[0035] <12> according to <10> or <11> The method for manufacturing a color filter, wherein:

[0036] At least one selected from the green pixel composition and the red pixel composition contains an alkali-soluble resin.

[0037] <13> according to <10> to <12> The method for manufacturing a color filter as described in any one of the preceding claims, wherein:

[0038] At least one selected from the green pixel composition and the red pixel composition includes a resin having a repeating unit containing a blocked isocyanate group.

[0039] <14> according to <10> to <13> The method for manufacturing a color filter as described in any one of the preceding claims, wherein:

[0040] The step of forming the green pixel and the step of forming the red pixel are each performed at a temperature of 150° C. or less.

[0041] <15> A solid-state imaging element having <1> to <9> The color filter as described above.

[0042] <16> A display device having <1> to <9> The color filter as described above.

[0043] Effects of the Invention

[0044] According to the present invention, it is possible to provide a color filter that can suppress color mixing due to color shift between pixels of other colors even when exposed to high temperatures, a method for manufacturing the color filter, a solid-state imaging element, and a display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a diagram showing an embodiment of a state in which a side surface of a green pixel is in contact with a side surface of a red pixel.

[0046] Figure 2 This is a diagram showing another embodiment of a state in which a side surface of a green pixel is in contact with a side surface of a red pixel. DETAILED DESCRIPTION

[0047] Hereinafter, the contents of the present invention will be described in detail.

[0048] Regarding the marking of groups (atomic groups) in this specification, the marking not marked with substituted and unsubstituted includes groups (atomic groups) without substitution and groups (atomic groups) with substitution. For example, "alkyl" includes not only alkyl groups without substitution (unsubstituted alkyl groups) but also alkyl groups with substitution (substituted alkyl groups).

[0049] The term "exposure" in this specification includes not only exposure using light, but also drawing using particle beams such as electron beams and ion beams, unless otherwise specified. In addition, as light used for exposure, generally, active light or radiation such as the bright line spectrum of a mercury lamp, far ultraviolet light represented by excimer laser, extreme ultraviolet light (EUV light), X-rays, and electron beams can be cited.

[0050] In the present specification, a numerical range expressed using "to" means a range including the numerical values ​​described before and after "to" as the lower limit and the upper limit.

[0051] In this specification, the total solid content refers to the total mass of the components excluding the solvent from all the components of the composition.

[0052] In the present specification, “(meth)acrylate” means both or either of acrylate and methacrylate, “(meth)acrylic acid” means both or either of acrylic acid and methacrylic acid, “(meth)allyl” means both or either of allyl and methallyl, and “(meth)acryloyl” means both or either of acryloyl and methacryloyl.

[0053] In this specification, the term "step" refers not only to an independent step but also to a step that cannot be clearly distinguished from other steps as long as the intended effect of the step can be achieved.

[0054] In this specification, the weight average molecular weight (Mw) and the number average molecular weight (Mn) are defined as polystyrene-equivalent values ​​measured by gel permeation chromatography (GPC).

[0055] <Color Filter>

[0056] The color filter of the present invention is a color filter having green pixels and red pixels, characterized in that:

[0057] The green pixel contains color index pigment green 7 and color index pigment yellow 150,

[0058] The red pixel contains one or more red colorants selected from the group consisting of Color Index Pigment Red 177, Color Index Pigment Red 264, and Color Index Pigment Red 269, and a yellow colorant other than Color Index Pigment Yellow 150.

[0059] The color filter of the present invention can suppress color mixing caused by color shift between green pixels and red pixels even when exposed to high temperatures. The detailed reason for obtaining such an effect is not clear, but it is presumed that the reason is that since the green pixels and the red pixels are respectively composed of substances containing the above-mentioned colorant, the migration of the colorant between the green pixels and the red pixels can be suppressed, or the precipitation caused by the aggregation of the colorant contained in the green pixel and the colorant contained in the red pixel near the interface of the two pixels can be suppressed.

[0060] Furthermore, in the color filter of the present invention, since the green pixel and the red pixel are each composed of a substance containing the above-mentioned coloring agent, the color separation property between the green pixel and the red pixel is also excellent.

[0061] In the color filter of the present invention, the effect of the present invention is significantly exerted when the side surface of the green pixel is in contact with the side surface of the red pixel. Here, as examples of the case where the side surface of the green pixel is in contact with the side surface of the red pixel, there can be cited: Figure 1 As shown, there is no partition wall or other layers at the interface between the green pixel 1 and the red pixel 2, and the two side walls are directly connected to each other; and Figure 2 As shown in FIG. 1 , a partition wall 5 whose pixel is lower than the green pixel 1 and the red pixel 2 is provided between the green pixel 1 and the red pixel 2, and the side surfaces of the two pixels are in contact with each other at the top of the partition wall 5. Figure 1 and Figure 2 , the thickness of the green pixel and the red pixel are described as being the same, but the thickness of the two can be different.

[0062] In the color filter of the present invention, in the light within the wavelength range of 400 to 700 nm, from the viewpoint of color separation, the difference between the wavelength of the light on the short-wavelength side with a transmittance of 5% for the green pixel and the wavelength of the light on the long-wavelength side with a transmittance of 5% for the red pixel is preferably 98 to 115 nm, more preferably 100 to 115 nm, and further preferably 105 to 115 nm.

[0063] Furthermore, in the color filter of the present invention, in the light within the wavelength range of 400 to 700 nm, from the viewpoint of color separation, the difference between the wavelength of the light on the long wavelength side with a transmittance of 30% for the green pixel and the wavelength of the light on the long wavelength side with a transmittance of 30% for the red pixel is preferably 10 to 33 nm, more preferably 18 to 33 nm, and still more preferably 25 to 33 nm.

[0064] (Green Pixels)

[0065] First, the green pixel is described in detail. The green pixel contains color index (CI) pigment green 7 and CI pigment yellow 150. Relative to 100 parts by mass of CI pigment green 7, the green pixel preferably contains 50 to 240 parts by mass of CI pigment yellow 150. The upper limit is preferably 200 parts by mass or less, and more preferably 150 parts by mass or less. The lower limit is preferably 80 parts by mass or more, and more preferably 100 parts by mass or more.

[0066] The green pixel may further contain a green colorant other than CI Pigment Green 7. As other green colorants, CI Pigment Green 10, 36, 37, 58, 59, 62, 63, 64, 65 and 66 can be cited. In addition, as the above-mentioned green colorant, a zinc phthalocyanine halogenide pigment having an average 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 can also be cited. As a specific example, the compounds described in International Publication No. 2015 / 118720 can be cited. In addition, as green colorants, compounds described in the specification of Chinese Patent Application No. 106909027, phthalocyanine compounds having a phosphate ester as a ligand described in International Publication No. 2012 / 102395, phthalocyanine compounds described in Japanese Patent Publication No. 2019-008014 and phthalocyanine compounds described in Japanese Patent Publication No. 2018-180023, compounds described in Japanese Patent Publication No. 2019-038958, etc. can also be mentioned.

[0067] Preferred embodiments of the green colorant contained in the green pixel include the following embodiments G1 and G2. From the viewpoint of color separation properties, the following embodiment G1 is preferred.

[0068] Form G1: A form in which the green colorant is substantially only CI Pigment Green 7.

[0069] Embodiment G2: A embodiment in which the green colorant contains CI Pigment Green 7 and at least one selected from CI Pigment Green 36 and CI Pigment Green 58 as the green colorant other than CI Pigment Green 7.

[0070] In addition, when the green colorant consists essentially of CI Pigment Green 7, it means that the content of CI Pigment Green 7 in the green colorant is 99.5% by mass or more, preferably 99.9% by mass or more.

[0071] In the green colorant of the embodiment G2, from the viewpoint of firmness and stability, the green colorant other than CI Pigment Green 7 is preferably CI Pigment Green 36. Furthermore, in the green colorant of the embodiment G2, the content of the green colorant other than CI Pigment Green 7 is preferably 0.1 to 100 parts by mass, more preferably 1 to 50 parts by mass, and even more preferably 5 to 25 parts by mass, relative to 100 parts by mass of CI Pigment Green 7. Furthermore, the content of CI Pigment Green 36 is preferably 0.1 to 100 parts by mass, more preferably 1 to 50 parts by mass, and even more preferably 5 to 25 parts by mass, relative to 100 parts by mass of CI Pigment Green 7.

[0072] The green pixel may contain a yellow colorant other than CI Pigment Yellow 150. As a yellow colorant other than CI Pigment Yellow 150, the yellow colorant 1 described below can be mentioned, and CI Pigment Yellow 129, 138, 139 and 185 are preferred from the viewpoint of color separation and light resistance.

[0073] Preferred embodiments of the yellow colorant contained in the green pixel include the following embodiment Y1 and embodiment Y2. From the viewpoint of light resistance, the following embodiment Y1 is preferred.

[0074] Form Y1: A form in which the yellow colorant is substantially only CI Pigment Yellow 150.

[0075] Form Y2: A form in which the yellow colorant contains CI Pigment Yellow 150 and a yellow colorant other than CI Pigment Yellow 150.

[0076] In the present specification, the yellow colorant containing substantially only CI Pigment Yellow 150 means that the content of CI Pigment Yellow 150 in the yellow colorant is 99.5% by mass or more, preferably 99.9% by mass or more.

[0077] In the yellow colorant of aspect Y2, the content of the yellow colorant other than CI Pigment Yellow 150 is preferably 0.1 to 100 parts by mass, more preferably 1 to 50 parts by mass, and even more preferably 10 to 25 parts by mass, relative to 100 parts by mass of CI Pigment Yellow 150.

[0078] The green pixel preferably contains 50 to 240 parts by mass of the yellow colorant relative to 100 parts by mass of the green colorant. 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.

[0079] Furthermore, the total content of the green colorant and the yellow colorant in the total amount of the colorant contained in the green pixel is preferably 50 to 100 mass %, more preferably 75 to 100 mass %, and even more preferably 90 to 100 mass %.

[0080] Furthermore, the total content of CI Pigment Green 7 and CI Pigment Yellow 150 in the total amount of the colorant contained in the green pixel is preferably 50 to 100 mass %, more preferably 75 to 100 mass %, and even more preferably 90 to 100 mass %.

[0081] Furthermore, the green pixel preferably contains 15 to 55% by mass in total of CI Pigment Green 7 and CI Pigment Yellow 150, more preferably 22 to 50% by mass, and even more preferably 29 to 45% by mass.

[0082] The green pixel may contain a colorant other than the green colorant and the yellow colorant (hereinafter, also referred to as other colorants), but from the viewpoint of color separation, it is particularly preferred that the other colorants are substantially not contained. As other colorants, color colorants such as red colorants, blue colorants, purple colorants, and orange colorants can be cited. In addition, the case where the green pixel does not substantially contain other colorants means that the content of other colorants in the colorants contained in the green pixel is less than 0.5% by mass, preferably less than 0.1% by mass, and more preferably, it does not contain other colorants.

[0083] Regarding the green pixel, the maximum value of the transmittance for light with 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.

[0084] Furthermore, the average transmittance for light having a wavelength of 495 nm or more and less than 550 nm is preferably 45% or more, more preferably 50% or more, and even more preferably 55% or more.

[0085] Furthermore, the transmittance to light having a wavelength of 450 nm is preferably 10% or less, more preferably 5% or less, and further preferably 2% or less.

[0086] Furthermore, the average transmittance for light having a wavelength of 400 nm to 450 nm is preferably 10% or less, more preferably 5% or less, and even more preferably 1% or less.

[0087] Furthermore, the average transmittance for light having a wavelength of 550 nm to 600 nm is preferably 60% or less, more preferably 50% or less, and even more preferably 40% or less.

[0088] The thickness of the green pixel 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 further preferably 1.1 μm or more. The upper limit is preferably 2.5 μm or less, more preferably 2.0 μm or less, and further preferably 1.8 μm or less.

[0089] Furthermore, the line width (pattern size) of the green pixel 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 further preferably 4.0 μm or less. The lower limit is preferably 2.25 μm or more, more preferably 2.5 μm or more, and further preferably 2.75 μm or more.

[0090] The green pixel can be formed using a green pixel composition including CI Pigment Green 7 and CI Pigment Yellow 150. The green pixel composition will be described later.

[0091] (Red Pixel)

[0092] Next, the red pixel is described in detail. The red pixel contains one or more red coloring agents selected from CI Pigment Red 177, CI Pigment Red 264, and CI Pigment Red 269, and a yellow coloring agent other than CI Pigment Yellow 150.

[0093] Examples of yellow colorants other than CI Pigment Yellow 150 (hereinafter referred to as yellow colorant 1) include CI 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, 121, 122, 123, 124, 125 193, 194, 199, 213, 214, 215, 228, 231, 232 (methine series), 233 (quinoline series), 234 (aminoketone series), 235 (aminoketone series), 236 (aminoketone series), etc.

[0094] As the yellow colorant 1, the compounds described in Japanese Patent Application Laid-Open No. 2017-201003, the compounds described in Japanese Patent Application Laid-Open No. 2017-197719, the compounds described in paragraphs 0011 to 0062 and 0137 to 0276 of Japanese Patent Application Laid-Open No. 2017-171912, the compounds described in paragraphs 0010 to 0062 and 0138 to 0295 of Japanese Patent Application Laid-Open No. 2017-171913, the compounds described in paragraphs 0011 to 0062 and 0139 to 0190 of Japanese Patent Application Laid-Open No. 2017-171914, the compounds described in paragraphs 0010 to 0062 and 0139 to 0190 of Japanese Patent Application Laid-Open No. 2017-171915, The compounds described in paragraphs 65, 0142 to 0222, the quinophthalone compounds described in paragraphs 0011 to 0034 of Japanese Patent Application Publication No. 2013-054339, the quinophthalone compounds described in paragraphs 0013 to 0058 of Japanese Patent Application Publication No. 2014-026228, the isoindoline compounds described in Japanese Patent Application Publication No. 2018-062644, the quinophthalone compounds described in Japanese Patent Application Publication No. 2018-203798, the quinophthalone compounds described in Japanese Patent Application Publication No. 2018-062578, the quinophthalone compounds described in Japanese Patent No. 6432076, the quinophthalone compounds described in Japanese Patent Application Publication No. 2018-155881 The quinophthalone compounds described in Japanese Patent Publication No. 2018-111757, the quinophthalone compounds described in Japanese Patent Publication No. 2018-040835, the quinophthalone compounds described in Japanese Patent Publication No. 2017-197640, the quinophthalone compounds described in Japanese Patent Publication No. 2016-145282, the quinophthalone compounds described in Japanese Patent Publication No. 2014-085565, the quinophthalone compounds described in Japanese Patent Publication No. 2014-021139, the quinophthalone compounds described in Japanese Patent Publication No. 2013-209614, the quinophthalone compounds described in Japanese Patent Publication No. 2013-209435 Quinophthalone compounds described in Japanese Patent Application Laid-Open No. 2013-181015, quinophthalone compounds described in Japanese Patent Application Laid-Open No. 2013-061622, quinophthalone compounds described in Japanese Patent Application Laid-Open No. 2013-032486, quinophthalone compounds described in Japanese Patent Application Laid-Open No. 2012-226110, quinophthalone compounds described in Japanese Patent Application Laid-Open No. 2008-074987, quinophthalone compounds described in Japanese Patent Application Laid-Open No. 2008-081565, quinophthalone compounds described in Japanese Patent Application Laid-Open No. 2008-074986, quinophthalone compounds described in Japanese Patent Application Laid-Open No. 2008-074985,Quinophthalone compounds described in Japanese Patent Application Publication No. 2008-050420, quinophthalone compounds described in Japanese Patent Application Publication No. 2008-031281, quinophthalone compounds described in Japanese Patent Publication No. 48-032765, quinophthalone compounds described in Japanese Patent Application Publication No. 2019-008014, quinophthalone compounds described in Japanese Patent No. 6607427, methine dyes described in Japanese Patent Application Publication No. 2019-073695, methine dyes described in Japanese Patent Application Publication No. 2019-073696, methine dyes described in Japanese Patent Application Publication No. 2019-073697, methine dyes described in Japanese Patent Application Publication No. 2019-073698, compounds represented by the following formula (QP1), compounds represented by the following formula (QP2). Furthermore, from the viewpoint of improving the color value, it is also preferable to use a substance in which these compounds are more quantified.

[0095] [Chemical formula 1]

[0096]

[0097] In formula (QP1), X 1 ~X 16 Each independently represents a hydrogen atom or a halogen atom, and Z 1 represents an alkylene group having 1 to 3 carbon atoms. Specific examples of the compound represented by the formula (QP1) include compounds described in paragraph 0016 of Japanese Patent No. 6443711.

[0098] [Chemical formula 2]

[0099]

[0100] In formula (QP2), Y 1 ~Y 3 Each independently represents a halogen atom. n and m represent integers of 0 to 6, and p represents an integer of 0 to 5. (n+m) is 1 or more. Specific examples of the compound represented by formula (QP2) include compounds described in paragraphs 0047 to 0048 of Japanese Patent No. 6432077.

[0101] The yellow colorant 1 is preferably at least one selected from isoindoline compounds and quinophthalone compounds, and more preferably at least one selected from CI Pigment Yellow 139 and CI Pigment Yellow 185. Furthermore, the yellow colorant 1 is preferably a yellow colorant of a different type from the yellow colorant included in the green pixel.

[0102] The yellow colorant contained in the red pixel may contain CI Pigment Yellow 150, but from the reason that the color shift between the green pixel and the red pixel is more easily suppressed, it is preferable that CI Pigment Yellow 150 is substantially not contained. That is, the yellow colorant contained in the red pixel is preferably substantially only Yellow Colorant 1. In addition, in this specification, the case where the yellow colorant does not substantially contain CI Pigment Yellow 150 means that the content of CI Pigment Yellow 150 in the yellow colorant is 0.5% by mass or less, preferably 0.1% by mass or less, and particularly preferably CI Pigment Yellow 150 is not contained.

[0103] The red pixel contains one or more red colorants (hereinafter also referred to as red colorant 1) selected from CI Pigment Red 177, CI Pigment Red 264, and CI Pigment Red 269. Red colorant 1 is preferably Pigment Red 177 or 264 from the viewpoint of durability.

[0104] The red pixel may contain other red colorants in addition to the above-mentioned red colorant 1. Examples of other red colorants include CI 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, and 123. , 144, 146, 149, 150, 155, 166, 168, 169, 170, 171, 172, 175, 176, 178, 179, 184, 185, 187, 188, 190, 200, 202, 206, 207, 208, 209, 210, 216, 220, 224, 226, 242, 246, 254, 255, 270, 272, 279, 291, 294 (xanthene series, Organo Ultramarine, Bluish Red), 295 (monoazo series), 296 (diazo series), 297 (aminoketone series), etc. In addition, as a red colorant, a diketopyrrolopyrrole compound in which at least one bromine atom is substituted in the structure described in Japanese Patent Publication No. 2017-201384, a diketopyrrolopyrrole compound described in paragraphs 0016 to 0022 of Japanese Patent No. 6248838, a diketopyrrolopyrrole compound described in International Publication No. 2012 / 102399, a diketopyrrolopyrrole compound described in International Publication No. 2012 / 117965, a naphthol azo compound described in Japanese Patent Publication No. 2012-229344, a red colorant described in Japanese Patent No. 6516119, a red colorant described in Japanese Patent No. 6525101, etc. can also be used. Furthermore, as the red colorant, a compound having a structure in which an aromatic ring group in which a group to which an oxygen atom, a sulfur atom or a nitrogen atom is introduced into an aromatic ring and a diketopyrrolopyrrole skeleton are bonded can be used.

[0105] The content of the red colorant 1 in the red colorant contained in the red pixel is preferably 50 to 100% by mass, more preferably 75 to 100% by mass, and even more preferably 90 to 100% by mass.

[0106] The red pixel preferably contains 5 to 100 parts by mass of the yellow colorant, more preferably 10 to 90 parts by mass, and even more preferably 20 to 80 parts by mass, based on 100 parts by mass of the red colorant 1.

[0107] In the red pixel, the total content of the red colorant 1 and the yellow colorant 1 is preferably 15 to 60% by mass, more preferably 22 to 52% by mass, and even more preferably 29 to 45% by mass.

[0108] The red pixel may contain a colorant other than the red colorant and the yellow colorant (hereinafter, also referred to as other colorants). As other colorants, purple colorants, orange colorants, etc. can be mentioned. As purple colorants, CI Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60, 61, etc. can be mentioned. As orange colorants, CI 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. can be mentioned. With respect to 100 parts by mass of the total of the above-mentioned red colorant 1 and the above-mentioned yellow colorant 1, the content of other colorants is preferably 20 parts by mass or less, more preferably 12 parts by mass or less, and further preferably 6 parts by mass or less.

[0109] The maximum value of the transmittance of the above-mentioned red pixel to light with a wavelength of 400 to 550 nm is preferably 5% or less, more preferably 3% or less, and further preferably 1% or less. Furthermore, the average transmittance to light with a wavelength of 400 to 550 nm is preferably 3% or less, more preferably 1% or less, and further preferably 0.5% or less. Furthermore, the minimum value of the transmittance to light with a wavelength of 600 to 700 nm is preferably 10% or more, more preferably 25% or more, and further preferably 40% or more. Furthermore, the average transmittance to light with a wavelength of 600 to 700 nm is preferably 80% or more, more preferably 90% or more, and further preferably 95% or more.

[0110] The thickness of the red pixel 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 further preferably 1.1 μm or more. The upper limit is preferably 2.5 μm or less, more preferably 2.0 μm or less, and further preferably 1.8 μm or less.

[0111] Furthermore, the line width (pattern size) of the red pixel 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 further preferably 4.0 μm or less. The lower limit is preferably 2.25 μm or more, more preferably 2.5 μm or more, and further preferably 2.75 μm or more.

[0112] The red pixel can be formed using a red pixel composition including one or more red colorants selected from the group consisting of Color Index Pigment Red 177, Color Index Pigment Red 264, and Color Index Pigment Red 269, and a yellow colorant other than Color Index Pigment Yellow 150. The red pixel composition will be described later.

[0113] (Other pixels)

[0114] The color filter of the present invention may have other pixels besides green pixels and red pixels. Examples of other pixels include blue pixels, yellow pixels, magenta pixels, cyan pixels, infrared transmission filter pixels, and transparent pixels, and preferably include blue pixels.

[0115] The blue pixel 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, more preferably 60% by mass or more. In addition, the blue pixel preferably contains 20% by mass or more of the blue colorant, more preferably 25% by mass or more, and further 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 further preferably 60% by mass or less. As the blue colorant, CI Pigment Blue 1, 2, 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 22, 29, 60, 64, 66, 79, 80, 87 (monoazo system), 88 (methine system) and other blue pigments can be cited, preferably CI Pigment Blue 15:6.

[0116] It is more preferred that the above-mentioned blue pixel further comprises at least one selected from a purple colorant and a red colorant in addition to a blue colorant. The content of the purple colorant is preferably 10 to 90 parts by mass, more preferably 20 to 75 parts by mass, and further preferably 30 to 60 parts by mass relative to 100 parts by mass of the blue colorant. As purple colorants and red colorants, purple pigments such as CI Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60 (triarylmethane series), 61 (xanthene series), and xanthene compounds can be cited. As xanthene compounds, salt-forming compounds obtained by reacting a resin having a cationic group in a side chain with a xanthene acid dye as described in paragraphs 0025 to 0077 of Japanese Patent Publication No. 2016-180834 can be cited.

[0117] The maximum value of the transmittance of the blue pixel to light with a wavelength of 400 to 500 nm is preferably 50% or more, more preferably 60% or more, and further preferably 70% or more. Furthermore, the average transmittance to light with a wavelength of 400 to 500 nm is preferably 40% or more, more preferably 50% or more, and further preferably 60% or more. Furthermore, the minimum value of the transmittance to light with a wavelength of 550 to 700 nm is preferably 30% or less, more preferably 20% or less, and further preferably 10% or less. Furthermore, the average transmittance to light with a wavelength of 550 to 700 nm is preferably 25% or less, more preferably 10% or less, and further preferably 5% or less.

[0118] The thickness of the blue pixel 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 further preferably 1.1 μm or more. The upper limit is preferably 2.5 μm or less, more preferably 2.0 μm or less, and further preferably 1.8 μm or less.

[0119] The line width (pattern size) of the blue pixel 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 further preferably 4.0 μm or less. The lower limit is preferably 2.25 μm or more, more preferably 2.5 μm or more, and further preferably 2.75 μm or more.

[0120] <Green pixel composition>

[0121] Colorants

[0122] The green pixel composition includes color index pigment green 7 and color index pigment yellow 150. The green pixel composition preferably includes 50 to 240 parts by mass of CI pigment yellow 150 relative to 100 parts by mass of CI pigment green 7. 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.

[0123] The green pixel composition may further contain a green colorant other than CI Pigment Green 7. As other green colorants, the green colorants described in the above-mentioned green pixel can be cited. As preferred embodiments of the green colorant contained in the green pixel composition, the above-mentioned embodiment G1 and embodiment G2 can be cited, and from the viewpoint of color separation, embodiment G1 is preferred.

[0124] The green pixel composition may contain a yellow colorant other than CI Pigment Yellow 150. As a yellow colorant other than CI Pigment Yellow 150, the above-mentioned yellow colorant 1 can be mentioned, and from the viewpoint of color separation and light resistance, CI Pigment Yellow 129, 138, 139, and 185 are preferred. As a preferred embodiment of the yellow colorant contained in the green pixel composition, the above-mentioned embodiment Y1 and embodiment Y2 can be mentioned, and from the viewpoint of light resistance, embodiment Y1 is preferred.

[0125] The green pixel composition may contain a colorant other than a green colorant and a yellow colorant (hereinafter, also referred to as other colorants). From the viewpoint of color separation, it is particularly preferred that other colorants are substantially not contained. As other colorants, color colorants such as red colorants, blue colorants, purple colorants, and orange colorants can be cited. In addition, the situation that the green pixel does not substantially contain other colorants means that the content of other colorants in the colorant contained in the green pixel is less than 0.5% by mass, preferably less than 0.1% by mass, and further preferably does not contain other colorants.

[0126] The content of the colorant in the total solid content of the green pixel composition is preferably 15% by mass or more, more preferably 20% by mass or more, and further preferably 25% by mass or more. The upper limit is preferably 60% by mass or less, more preferably 50% by mass or less, and further preferably 40% by mass or less.

[0127] The green pixel composition preferably contains 50 to 240 parts by mass of the yellow colorant relative to 100 parts by mass of the green colorant. 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.

[0128] Furthermore, the total content of the green colorant and the yellow colorant in the total amount of the colorant contained in the green pixel composition is preferably 50 to 100 mass %, more preferably 75 to 100 mass %, and further preferably 90 to 100 mass %. Furthermore, the total content of CI Pigment Green 7 and CI Pigment Yellow 150 in the total amount of the colorant contained in the green pixel composition is preferably 50 to 100 mass %, more preferably 75 to 100 mass %, and further preferably 90 to 100 mass %. Furthermore, the total content of CI Pigment Green 7 and CI Pigment Yellow 150 in the total solid content of the green pixel composition is preferably 15 to 60 mass %, more preferably 22 to 52 mass %, and further preferably 29 to 45 mass %.

[0129] 《Polymeric Compounds》

[0130] The composition for green pixels preferably contains a polymerizable compound. As the polymerizable compound, a compound having a group containing an ethylenically unsaturated bond can be cited. As the group containing an ethylenically unsaturated bond, a vinyl group, a (meth)allyl group, a (meth)acryloyl group, etc. can be cited. The polymerizable compound is preferably a compound that can be polymerized by free radicals (free radical polymerizable compound).

[0131] The polymerizable compound may be in any chemical form such as a monomer, a prepolymer, or an oligomer, preferably a monomer. The molecular weight of the polymerizable compound is preferably 100 to 3000. 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.

[0132] The polymerizable compound is preferably a compound containing three or more groups containing ethylenically unsaturated bonds, and more preferably a compound containing four or more groups containing ethylenically unsaturated bonds. According to this embodiment, the curability by exposure is good. From the viewpoint of the temporal stability of the green pixel composition, the upper limit of the group containing an ethylenically unsaturated bond is preferably 15 or less, more preferably 10 or less, and further preferably 6 or less. Furthermore, the polymerizable compound is preferably a (meth)acrylate compound having three or more functions, more preferably a (meth)acrylate compound having 3 to 15 functions, further preferably a (meth)acrylate compound having 3 to 10 functions, and particularly preferably a (meth)acrylate compound having 3 to 6 functions.

[0133] Preferred polymerizable compounds include dipentaerythritol tri(meth)acrylate (commercially available as KAYARAD D-330; manufactured by NIPPON KAYAKU CO., Ltd.), dipentaerythritol tetra(meth)acrylate (commercially available as KAYARAD D-320; manufactured by NIPPON KAYAKU CO., Ltd.), dipentaerythritol penta(meth)acrylate (commercially available as KAYARAD D-310; manufactured by NIPPON KAYAKU CO., Ltd.), dipentaerythritol hexa(meth)acrylate (commercially available as KAYARAD DPHA; manufactured by NIPPON KAYAKU CO., Ltd., NK ester A-DPH-12E; manufactured by SHIN-NAKAMURA CHEMICAL CO., Ltd.), and compounds having a structure in which these (meth)acryloyl groups are bonded via ethylene glycol and / or propylene glycol residues (for example, SARTOMER Company, Inc. (SR454, SR499). As the polymerizable compound, diglycerol EO (ethylene oxide)-modified (meth) acrylate (commercially available as 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.), NKOligo UA-7200 (manufactured by SHIN-NAKAMURA CHEMICAL CO., LTD.), 8UH-1006, 8UH-1012 (manufactured by Taisei Fine Chemical Co., Ltd.), Light acrylate POB-AO (manufactured by Kyoeisha Chemical Co., Ltd.), Co., Ltd. manufacturing) etc.

[0134] As the polymerizable compound, trifunctional (meth)acrylate compounds such as trimethylolpropane tri(meth)acrylate, trimethylolpropane propylene oxide-modified tri(meth)acrylate, trimethylolpropane ethylene oxide-modified tri(meth)acrylate, isocyanurate ethylene oxide-modified tri(meth)acrylate, and pentaerythritol tri(meth)acrylate are also preferably used. Commercially available products of the trifunctional (meth)acrylate compound include ARONIX M-309, M-310, M-321, M-350, M-360, M-313, M-315, M-306, M-305, M-303, M-452, and 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, and TMPT (manufactured by SHIN-NAKAMURA CHEMICAL CO., LTD.), KAYARAD GPO-303, TMPTA, THE-330, TPA-330, and PET-30 (manufactured by Nippon Kayaku Co., Ltd.).

[0135] As the polymerizable compound, a polymerizable compound having an acid group can also be used. By using a polymerizable compound having an acid group, the generation of developer residue can be suppressed. Examples of the acid group include a carboxyl group, a sulfonic group, a phosphoric acid group, and the like, preferably a carboxyl group. Commercially available products of the polymerizable compound having an acid group include ARONIX M-305, M-510, M-520, ARONIXTO-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, and more preferably 5 to 30 mgKOH / g. If the acid value of the polymerizable compound is 0.1 mgKOH / g or more, the solubility of the composition layer in the developer is good, and if it is 40 mgKOH / g or less, it is advantageous for manufacturing or handling.

[0136] As the polymerizable compound, a polymerizable compound having a caprolactone structure can also be used. Examples of the polymerizable compound having a caprolactone structure include KAYARAD DPCA series commercially available from NIPPON KAYAKU CO., Ltd., such as DPCA-20, DPCA-30, DPCA-60, and DPCA-120.

[0137] As the polymerizable compound, a polymerizable compound having an alkyleneoxy group can also be used. The polymerizable compound having an alkyleneoxy group is preferably a polymerizable compound having an ethyleneoxy group and / or a propyleneoxy group, more preferably a polymerizable compound having an ethyleneoxy group, and further preferably a tri- to hexa-functional (meth)acrylate compound having 4 to 20 ethyleneoxy groups. Commercially available products of polymerizable compounds having an alkyleneoxy group include, for example, SR-494, a tetrafunctional (meth)acrylate having 4 ethyleneoxy groups (manufactured by Sartomer Company, Inc.), KAYARAD TPA-330, a trifunctional (meth)acrylate having 3 isobutyleneoxy groups (Nippon Kayaku Co., Ltd.), and the like.

[0138] As the polymerizable compound, a polymerizable compound having a fluorene skeleton can also be used. Examples of commercially available polymerizable compounds having a fluorene skeleton include OGSOL EA-0200 and EA-0300 (manufactured by Osaka Gas Chemicals Co., Ltd., (meth)acrylate monomers having a fluorene skeleton).

[0139] As the polymerizable compound, it is also preferable to use a compound that does not substantially contain environmentally regulated substances such as toluene. Examples of commercially available products of such a compound include KAYARAD DPHA LT and KAYARAD DPEA-12LT (manufactured by Nippon Kayaku Co., Ltd.).

[0140] As the polymerizable compound, polyurethane acrylates described in JP-48-041708, JP-51-037193, JP-02-032293, JP-02-016765, and carbamate compounds having an ethylene oxide skeleton described in JP-58-049860, JP-56-017654, JP-62-039417, JP-62-039418 are also preferred. In addition, polymerizable compounds having an amino structure or a thioether structure in the molecule described in JP-63-277653, JP-63-260909, JP-01-105238 are also preferably used. Furthermore, as the polymerizable compound, commercially available products such as UA-7200 (manufactured by SHIN-NAKAMURA CHEMICAL CO., LTD.), DPHA-40H (manufactured by Nippon Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I, AH-600, T-600, AI-600, and LINC-202UA (manufactured by Kyoeisha Chemical Co., Ltd.) can be used.

[0141] The content of the polymerizable compound in the total solid content of the green pixel composition is preferably 5 to 35% by mass, the upper limit is preferably 30% by mass or less, more preferably 25% by mass or less, and the lower limit is preferably 7.5% by mass or more, more preferably 10% by mass or more.

[0142] 《Photopolymerization Initiator》

[0143] The composition for green pixels preferably contains a photopolymerization initiator. The photopolymerization initiator is not particularly limited and can be appropriately selected from known photopolymerization initiators. For example, a compound that is photosensitized to light in the ultraviolet region to the visible region is preferred. The photopolymerization initiator is preferably a photo-radical polymerization initiator.

[0144] As the photopolymerization initiator, there can be mentioned halogenated hydrocarbon derivatives (for example, compounds having a triazine skeleton, compounds having an oxadiazole skeleton, etc.), acylphosphine compounds such as acylphosphine oxide, hexaarylbimidazole compounds, oxime compounds such as oxime derivatives, organic peroxides, thio compounds, ketone compounds, aromatic onium salts, ketoxime ether compounds, aminoalkylphenone compounds, hydroxyalkylphenone compounds, phenylacetic acid ester compounds, etc. As specific examples of photopolymerization initiators, for example, reference can be made to paragraphs 0265 to 0268 of Japanese Patent Publication No. 2013-029760 and the records of Japanese Patent Publication No. 6301489, and these contents are incorporated into this specification. The photopolymerization initiator preferably contains an oxime compound, and more preferably contains an oxime compound and a hydroxyalkylphenone compound.

[0145] Examples of the phenylacetic acid ester compound include methyl phenylglyoxylate, and examples of commercially available products include Omnirad MBF (manufactured by IGM Resins BV) and Irgacure MBF (manufactured by BASF).

[0146] As the acylphosphine compound, there can be mentioned the acylphosphine compounds described in Japanese Patent No. 4225898. As a specific example, there can be mentioned bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, etc. As commercial products of the acylphosphine compound, there can be mentioned Omnirad 819, Omnirad TPO (the above are manufactured by IGM Resins BV), Irgaeure 819, Irgaeure TPO (the above are manufactured by BASF), etc.

[0147] As the aminoalkylphenone compound, for example, there can be mentioned the aminoalkylphenone compounds described in Japanese Patent Application Laid-Open No. 10-291969. In addition, as commercially available products of the aminoalkylphenone compound, there can be mentioned Omnirad 907, Omnirad 369, Omnirad 369E, Omnirad 379EG (all manufactured by IGM Resins BV), Irgacure 907, Irgacure 369, Irgacure 369E, Irgacure 379EG (all manufactured by BASF), and the like.

[0148] Examples of the hydroxyalkylphenone compound include compounds represented by the following formula (V).

[0149] Formula (V)

[0150] [Chemical formula 3]

[0151]

[0152] Where Rv1 Represents a substituent, Rv 2 and Rv 3 Each independently represents a hydrogen atom or a substituent, Rv 2 With Rv 3 They may be bonded to each other to form a ring, and m represents an integer of 0-5.

[0153] As Rv 1 The substituent represented by may be an alkyl group (preferably an alkyl group having 1 to 10 carbon atoms) or 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. 1 The alkyl group and alkoxy group represented may be unsubstituted or may have a substituent. As the substituent, a hydroxyl group or a group having a hydroxyalkylphenone structure may be mentioned. As the group having a hydroxyalkylphenone structure, Rv in formula (V) may be mentioned. 1 Bonded benzene ring or Rv 1 A group with a structure formed by removing one hydrogen atom from a molecule.

[0154] R 2 and Rv 3 Each independently represents a hydrogen atom or a substituent. As the substituent, an alkyl group (preferably an alkyl group having 1 to 10 carbon atoms) is preferred. 2 With Rv 3 They 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 a linear or branched chain, more preferably a linear chain.

[0155] Specific examples of the compound represented by formula (V) include the following compounds.

[0156] [Chemical formula 4]

[0157]

[0158] Examples of commercially available products of the hydroxyalkylphenone compound include Omnirad 184, Omnirad 1173, Omnirad 2959, and Omnirad 127 (all manufactured by IGM Resins BV), and Irgacure 184, Irgacure 1173, Irgacure 2959 and Irgacure 127 (all manufactured by BASF).

[0159] Examples of the oxime compound include compounds described in JP-A-2001-233842, compounds described in JP-A-2000-080068, compounds described in JP-A-2006-342166, compounds described in JCS Perkin II (1979, pp. 1653-1660), compounds described in JCS Perkin II (1979, pp. 156-162), and compounds described in Journal of Photopolymer Science and Technology. Technology (1995, pp. 202-232), compounds described in Japanese Patent Application Publication No. 2000-066385, compounds described in Japanese Patent Publication No. 2004-534797, compounds described in Japanese Patent Publication No. 2006-342166, compounds described in Japanese Patent Publication No. 2017-019766, compounds described in Japanese Patent Publication No. 6065596 The compounds described in the International Publication No. 2015 / 152153, the compounds described in the International Publication No. 2017 / 051680, the compounds described in the Japanese Patent Publication No. 2017-198865, the compounds described in paragraphs 0025 to 0038 of the International Publication No. 2017 / 164127, the compounds described in the International Publication No. 2013 / 167515, etc. Specific examples of oxime compounds include 3-benzoyloxyiminobutane-2-one, 3-acetoxyiminobutane-2-one, 3-propionyloxyiminobutane-2-one, 2-acetoxyiminopentane-3-one, 2-acetoxyimino-1-phenylpropane-1-one, 2-benzoyloxyimino-1-phenylpropane-1-one, 3-(4-toluenesulfonyloxy)iminobutane-2-one and 2-ethoxycarbonyloxyimino-1-phenylpropane-1-one. Commercially available products include Irgacure OXE01, Irgacure OXE02, Irgacure OXE03, and Irgacure OXE04 (all manufactured by BASF SE), TR-PBG-304 (manufactured by Changzhou Trolly New Electronic Materials Co., Ltd.), and Adeka Optomer N-1919 (manufactured by ADEKA CORPORATION, a photopolymerization initiator 2 described in Japanese Patent Application Publication No. 2012-014052). In addition, as the oxime compound, a non-coloring compound or a highly transparent compound that is not easily discolored is preferably used.Examples of commercially available products include ADEKA ARKLS NCI-730, NCI-831, and NCI-930 (all manufactured by ADEKA CORPORATION).

[0160] As the photopolymerization initiator, an oxime compound having a fluorene ring can also be used. Specific examples of the oxime compound having a fluorene ring include compounds described in JP-A-2014-137466.

[0161] As the photopolymerization initiator, an oxime compound having a carbazole ring and a skeleton in which at least one benzene ring is a naphthalene ring can also be used. Specific examples of such oxime compounds include compounds described in International Publication No. 2013 / 083505.

[0162] 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 the formula (OX-1).

[0163] (OX-1)

[0164] [Chemical formula 5]

[0165]

[0166] In formula (OX-1), Ar 1 and Ar 2 Each independently represents an aromatic hydrocarbon ring which may have a substituent, R 1 represents an aryl group having a group containing a fluorine atom, R 2 and R 3 Each independently represents an alkyl group or an aryl group.

[0167] In formula (OX-1), Ar 1 and Ar 2 The aromatic hydrocarbon ring represented may be a single ring or a condensed ring. The number of carbon atoms constituting the aromatic hydrocarbon ring is preferably 6 to 20, more preferably 6 to 15, and particularly preferably 6 to 10. The aromatic hydrocarbon ring is preferably a benzene ring or a naphthalene ring. 1 Preferably it is a benzene ring. 2 It is preferably a benzene ring or a naphthalene ring, and more preferably a naphthalene ring.

[0168] As Ar 1 and Ar 2 The substituents which may be present 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 、-NRX1 R X2 、-NHCOR X1 、-CONR X1 R X2 、-NHCONR X1 R X2 、-NHCOOR X1 、-SO2R X1 、-SO2OR X1 、-NHSO2R X1 Etc. R X1 and R X2 Each independently represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group.

[0169] The halogen atom includes a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, and the like, and a fluorine atom is preferred. X1 and R X2 The number of carbon atoms in the alkyl group represented is preferably 1 to 30. The alkyl group may be any of linear, branched, or cyclic, but is preferably linear or branched. Some or all of the hydrogen atoms in the alkyl group may be substituted by halogen atoms (preferably fluorine atoms). Also, some or all of the hydrogen atoms in the alkyl group may be substituted by the above-mentioned substituents. The aryl group, and R X1 and R X2 The number of carbon atoms of the aryl group represented is preferably 6 to 20, more preferably 6 to 15, and further preferably 6 to 10. The aryl group may be a single ring or a condensed ring. In addition, a part or all of the hydrogen atoms in the aryl group may be substituted by the above-mentioned substituents. The heterocyclic group as a substituent, and R X1 and R X2 The heterocyclic group represented is preferably a 5-membered ring or a 6-membered ring. The heterocyclic group may be a monocyclic 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 more preferably 3 to 12. The number of heteroatoms constituting the heterocyclic group is preferably 1 to 3. The heteroatoms constituting the heterocyclic group are preferably nitrogen atoms, oxygen atoms or sulfur atoms. Furthermore, some or all of the hydrogen atoms in the heterocyclic group may be substituted by the above-mentioned substituents.

[0170] Ar 1 The aromatic hydrocarbon ring represented by is preferably an unsubstituted aromatic hydrocarbon ring. 2 The aromatic hydrocarbon ring represented by preferably has a substituent. As the substituent, -COR X1 . R X1 An alkyl group, an aryl group or a heterocyclic group is preferred, and an aryl group is more preferred. 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.

[0171] R of formula (OX-1) 1represents 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 further 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). As the fluorine-containing group, it is preferably selected from -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 F1 、-SO2R F1 、-SO2OR F1 and -NHSO2R F1 At least one group in R F1 represents a fluorinated alkyl group, R F2 represents a hydrogen atom, an alkyl group, a fluorinated alkyl group, an aryl group or a heterocyclic group. The fluorinated group is preferably -OR F1 .

[0172] R F1 and R F2 The fluorinated alkyl group represented by F2 The number of carbon atoms of the alkyl group represented is preferably 1 to 20, more preferably 1 to 15, further preferably 1 to 10, and particularly preferably 1 to 4. The fluorinated alkyl group and the alkyl group may be any of linear, branched, and cyclic, but are preferably linear or branched. In the fluorinated alkyl group, the substitution rate of fluorine atoms is preferably 40 to 100%, more preferably 50 to 100%, and further preferably 60 to 100%. In addition, the substitution rate of fluorine atoms refers to the ratio (%) of the number of fluorine atoms substituted to the number of all hydrogen atoms possessed by the alkyl group.

[0173] R F2 The number of carbon atoms of the aryl group represented is preferably 6-20, more preferably 6-15, and further preferably 6-10.

[0174] R F2The heterocyclic group represented is preferably a 5-membered ring or a 6-membered ring. The heterocyclic group may be a monocyclic ring or a condensed ring. The number of condensed rings is preferably 2 to 8, more preferably 2 to 6, further preferably 3 to 5, and particularly preferably 3 or 4. The number of carbon atoms constituting the heterocyclic group is preferably 3 to 40, more preferably 3 to 30, and more preferably 3 to 20. The number of heteroatoms constituting the heterocyclic group is preferably 1 to 3. The heteroatoms constituting the heterocyclic group are preferably nitrogen atoms, oxygen atoms or sulfur atoms, and more preferably nitrogen atoms.

[0175] The group containing a fluorine atom preferably has a terminal structure represented by formula (1) or (2): * in the formula represents a connecting bond.

[0176] *-CHF2 (1)

[0177] *-CF3 (2)

[0178] R of formula (OX-1) 2 represents an alkyl group or an aryl group, preferably an alkyl group. The alkyl group and the aryl group may be unsubstituted or may have a substituent. As the substituent, there may be mentioned the above-mentioned Ar 1 and Ar 2 The substituents described in the substituents of alkyl are preferably 1 to 20 carbon atoms, more preferably 1 to 15, further preferably 1 to 10, and particularly preferably 1 to 4. The alkyl group may be any of linear, branched, and cyclic, but is preferably linear or branched. The aryl group preferably has 6 to 20 carbon atoms, more preferably 6 to 15, and further preferably 6 to 10 carbon atoms.

[0179] R of formula (OX-1) 3 represents an alkyl group or an aryl group, preferably an alkyl group. The alkyl group and the aryl group may be unsubstituted or may have a substituent. As the substituent, the above-mentioned 1 and Ar 2 The substituents of R are described below. 3 The number of carbon atoms in the alkyl group represented is preferably 1 to 20, more preferably 1 to 15, and even more preferably 1 to 10. The alkyl group may be linear, branched, or cyclic, but is preferably linear or branched. 3 The number of carbon atoms of the aryl group represented is preferably 6-20, more preferably 6-15, and further preferably 6-10.

[0180] Specific examples of the oxime compound having a fluorine atom include compounds described in JP-A-2010-262028, compounds 24 and 36 to 40 described in JP-A-2014-500852, and compound (C-3) described in JP-A-2013-164471.

[0181] As the photopolymerization initiator, an oxime compound having a nitro group can be used. The oxime compound having a nitro group is also preferably a dimer. As specific examples of the oxime compound having a nitro group, there can be cited the compounds described in paragraphs 0031 to 0047 of Japanese Patent Publication No. 2013-114249, paragraphs 0008 to 0012, paragraphs 0070 to 0079 of Japanese Patent Publication No. 2014-137466, the compounds described in paragraphs 0007 to 0025 of Japanese Patent Publication No. 4223071, and ADEKA ARKLS NCI-831 (manufactured by ADEKA CORPORATION).

[0182] As the photopolymerization initiator, an oxime compound having a benzofuran skeleton can also be used. Specific examples thereof include OE-01 to 0E-75 described in International Publication No. 2015 / 036910.

[0183] As a photopolymerization initiator, an oxime compound having a substituent having a hydroxyl group bonded to a carbazole skeleton can also be used. As such a photopolymerization initiator, compounds described in International Publication No. 2019 / 088055 can be cited.

[0184] Specific examples of the oxime compound preferably used are shown below, but the present invention is not limited to these.

[0185] [Chemical formula 6]

[0186]

[0187] [Chemical formula 7]

[0188]

[0189] As the photopolymerization initiator, it is also preferred to use the photopolymerization initiator A1 and the photopolymerization initiator A2 in combination. The extinction coefficient of the photopolymerization initiator A1 in methanol at a wavelength of 365 nm is 1.0×10 3 mL / gcm or more, the absorption coefficient of photopolymerization initiator A2 in methanol at a wavelength of 365nm is 1.0×10 2 mL / gcm or less and the absorption coefficient at a wavelength of 254nm is 1.0×10 3 mL / gcm or more. According to this method, the green pixel composition can be easily cured by exposure, and a pixel having good flatness and excellent properties such as light resistance and solvent resistance can be formed by a low-temperature process (for example, a process performed at a temperature below 150°C, preferably below 120°C, throughout the entire process). As the photopolymerization initiator A1 and the photopolymerization initiator A2, it is preferred to select and use a compound having the above-mentioned absorption coefficient from the above-mentioned compounds.

[0190] In addition, in this specification, the absorption coefficient of the photopolymerization initiator at the above wavelength is a value measured as follows. That is, the measurement solution is prepared by dissolving the photopolymerization initiator in methanol, and the absorbance of the above measurement solution is measured. Specifically, the above measurement solution is added to a glass container with a width of 1 cm, and the absorbance is measured using a UV-Vis-NIR spectrometer (Cary5000) manufactured by Agient Technologies, and the absorption coefficient (mL / gcm) at a wavelength of 365nm and a wavelength of 254nm is calculated using the following formula.

[0191] [Formula 1]

[0192]

[0193] In the above formula, ε represents the absorption 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).

[0194] The absorption 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, more preferably 1.1×10 4 mL / gcm or more, more preferably 1.2×10 4 ~1.0×10 5 mL / gcm, and more preferably 1.3×10 4 ~5.0×10 4 mL / gcm, particularly preferably 1.5×10 4 ~3.0×10 4 mL / gcm.

[0195] Furthermore, the absorption coefficient of the photopolymerization initiator A1 at a wavelength of 254 nm in methanol is preferably 1.0×10 4 ~1.0×10 5 mL / gcm, more preferably 1.5×10 4 ~9.5×10 4 mL / gcm, more preferably 3.0×10 4 ~8.0×10 4 mL / gcm.

[0196] As the photopolymerization initiator A1, oxime compounds, aminoalkylphenone compounds, and acylphosphine compounds are preferred, oxime compounds and acylphosphine compounds are more preferred, and oxime compounds are further preferred. From the viewpoint of compatibility with other components contained in the composition, oxime compounds containing fluorine atoms are particularly preferred. As the oxime compound containing fluorine atoms, the compound represented by the above-mentioned formula (OX-1) is preferred. Specific examples of the photopolymerization initiator A1 include 1,2-octanedione, 1-[4-(phenylthio)-, 2-(O-benzoyl oxime)] (commercially available products include Irgacure OXE01, manufactured by BASF), ethyl ketone, 1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazole-3-yl]-, 1-(O-acetyl oxime) (commercially available products include Irgacure OXE02, manufactured by BASF), (C-13), (C-14), (C-17) and the like listed in the specific examples of the above-mentioned oxime compounds.

[0197] The absorption coefficient of the photopolymerization initiator A2 in methanol at a wavelength of 365 nm is 1.0×10 2 mL / gcm or less, preferably 10 to 1.0×10 2 mL / gcm, more preferably 20 to 1.0×10 2 mL / gcm. In addition, the difference between the absorption coefficient of light at a wavelength of 365 nm in methanol of the photopolymerization initiator A1 and the absorption coefficient of light at a wavelength of 365 nm in methanol of the photopolymerization initiator 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 ~3.0×10 4 mL / gcm, more preferably 1.0×10 4 ~2.0×10 4 mL / gcm. In addition, the absorption coefficient of the photopolymerization initiator A2 at a wavelength of 254 nm in methanol is 1.0×10 3 mL / gcm or more, preferably 1.0×10 3 ~1.0×10 6 mL / gcm, more preferably 5.0×10 3 ~1.0×10 5 mL / gcm.

[0198] As the photopolymerization initiator A2, hydroxyalkyl phenone compounds, phenylacetic acid ester compounds, aminoalkyl phenone compounds, and acylphosphine compounds are preferred, hydroxyalkyl phenone compounds and phenylacetic acid ester compounds are more preferred, and hydroxyalkyl phenone compounds are further preferred. In addition, as the hydroxyalkyl phenone compound, the compound represented by the above formula (V) is preferred. Specific examples of the photopolymerization initiator A2 include 1-hydroxy-cyclohexyl-phenyl-ketone, 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propane-1-one, and the like.

[0199] As the combination of photopolymerization initiator A1 and photopolymerization initiator A2, a combination in which photopolymerization initiator A1 is an oxime compound and photopolymerization initiator A2 is a hydroxyalkyl phenone compound is preferred, a combination in which photopolymerization initiator A1 is an oxime compound and photopolymerization initiator A2 is the compound represented by the above-mentioned formula (V) is more preferred, and a combination in which photopolymerization initiator A1 is an oxime compound containing a fluorine atom and photopolymerization initiator A2 is the compound represented by the above-mentioned formula (V) is particularly preferred.

[0200] Furthermore, as the photopolymerization initiator, it is also preferable to use a combination of Irgacure OXE01 (manufactured by BASF) and / or Irgacure OXE02 (manufactured by BASF) and Omnirad 2959 (manufactured by IGM Resins BV).

[0201] In the total solid content of the green pixel composition, the content of the photopolymerization initiator is preferably 3 to 25% by mass. The lower limit is preferably 5% by mass or more, more preferably 7.5% by mass or more, further preferably 8% by mass or more, further preferably 9% by mass or more, and particularly preferably 10% by mass or more. The upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and further preferably 15% by mass or less. The photopolymerization initiator can be used alone or in combination of two or more. When two or more are used in combination, the total amount of these is preferably within the above range.

[0202] When the photopolymerization initiator A1 described as a photopolymerization initiator is used, the content of the photopolymerization initiator A1 is preferably 3 to 25% by mass in the total solid content of the green pixel composition. The lower limit is preferably 5% by mass or more, more preferably 7.5% by mass or more, further preferably 8% by mass or more, further preferably 9% by mass or more, and particularly preferably 10% by mass or more. The upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and further preferably 15% by mass or less. By making the content of the photopolymerization initiator A1 within the above range, the adhesion between the pixel after development and the support body can be improved.

[0203] When the above-mentioned photopolymerization initiator A2 is used as a photopolymerization initiator, the content of the photopolymerization initiator A2 is preferably 0.1 to 10.0% by mass in the total solid content of the green pixel composition. The lower limit is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and further 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 further preferably 7.0% by mass or less. If the content of the photopolymerization initiator A2 is within the above range, the solvent resistance of the pixel after development can be improved.

[0204] When the above-mentioned photopolymerization initiator A1 and photopolymerization initiator A2 are used as photopolymerization initiators, the green pixel composition preferably contains 50 to 200 parts by mass of photopolymerization initiator A2 relative to 100 parts by mass of photopolymerization initiator A1. The upper limit is preferably 175% by mass or less, more preferably 150% 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 method, pixels with excellent properties such as solvent resistance can be formed by a low-temperature process (for example, a process carried out at a temperature below 150°C, preferably below 120°C, throughout the entire process). When two or more photopolymerization initiators A1 and A2 are used respectively, it is preferred that the total amount of each meets the above requirements.

[0205] When the above-mentioned photopolymerization initiator A1 and photopolymerization initiator A2 are used as photopolymerization initiators, the total content of photopolymerization initiator A1 and photopolymerization initiator A2 in the total solid content of the green pixel composition 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, further preferably 8% by mass or more, further preferably 9% by mass or more, and particularly preferably 10% by mass or more. The upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and further preferably 15% by mass or less.

[0206] Resin

[0207] The green pixel composition preferably includes a resin. The resin is prepared, for example, for the purpose of dispersing a pigment (CI Pigment Green 7, CI Pigment Yellow 150, etc.) in the green pixel composition or for the purpose of an adhesive. In addition, the resin mainly used to disperse the pigment in the green pixel composition is also referred to as a dispersant. However, these uses of the resin are examples, and the resin can also be used for purposes other than these uses.

[0208] 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 3,000 or more, more preferably 4,000 or more, and further preferably 5,000 or more.

[0209] Examples of the resin include (meth)acrylic resins, (meth)acrylamide resins, epoxy resins, ene-thiol resins, polycarbonate resins, polyether resins, polyarylate resins, polysulfone resins, polyethersulfone resins, polyphenylene resins, polyarylene ether phosphine oxide resins, polyimide resins, polyamide-imide resins, polyolefin resins, cyclic olefin resins, polyester resins, styrene resins, and siloxane resins. Furthermore, the resins described in paragraphs 0041 to 0060 of Japanese Patent Application Publication No. 2017-206689, the resins described in paragraphs 0022 to 0071 of Japanese Patent Application Publication No. 2018-010856, the resins described in Japanese Patent Application Publication No. 2017-057265, the resins described in Japanese Patent Application Publication No. 2017-032685, the resins described in Japanese Patent Application Publication No. 2017-075248, and the resins described in Japanese Patent Application Publication No. 2017-066240 can also be used.

[0210] The resin contained in the green pixel composition preferably contains an alkali-soluble resin. As the alkali-soluble resin, a resin having an acid group is preferred. As the acid group, phenolic hydroxyl group, carboxyl group, sulfonic group, phosphoric acid group, phosphonic acid group, etc. can be cited.

[0211] The acid value of the alkali-soluble resin is preferably 30 to 500 mgKOH / g. The lower limit is more preferably 50 mgKOH / g or more, and further 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.

[0212] The alkali-soluble resin may have a repeating unit derived from a maleimide compound. Examples of maleimide compounds include N-alkyl maleimide and N-aryl maleimide. Examples of repeating units derived from maleimide compounds include repeating units represented by formula (C-mi).

[0213] [Chemical formula 8]

[0214]

[0215] In formula (C-mi), Rmi represents an alkyl group or an aryl group. The number of carbon atoms of the alkyl group is preferably 1 to 20. The alkyl group may be any of a linear, branched, or cyclic group. The number of carbon atoms of the aryl group is preferably 6 to 20, more preferably 6 to 15, and further preferably 6 to 10. Rmi is preferably an aryl group.

[0216] The resin is also preferably a resin containing repeating units derived from a compound represented by the following formula (ED1) and / or a compound represented by the following formula (ED2) (hereinafter, these compounds may also be referred to as “ether dimers”).

[0217] [Chemical formula 9]

[0218]

[0219] In formula (ED1), R 1 and R 2 Each independently represents a hydrogen atom or an optionally substituted hydrocarbon group having 1 to 25 carbon atoms.

[0220] [Chemical formula 10]

[0221]

[0222] In formula (ED2), R represents a hydrogen atom or an organic group having 1 to 30 carbon atoms. For details of formula (ED2), reference may be made to the description of Japanese Unexamined Patent Publication No. 2010-168539, which is incorporated herein. For specific examples of ether dimers, reference may be made to paragraph 0317 of Japanese Unexamined Patent Publication No. 2013-029760, which is incorporated herein.

[0223] The resin preferably includes a resin having a repeating unit having a polymerizable group.

[0224] The resin preferably includes a resin containing a repeating unit derived from a compound represented by the formula (X).

[0225] [Chemical formula 11]

[0226]

[0227] In the formula, R 1 represents a hydrogen atom or a methyl group, R 21 and R 22 Each independently represents an alkylene group, and n represents an integer of 0 to 15. 21 and R 22 The number of carbon atoms of the alkylene group represented is preferably 1 to 10, more preferably 1 to 5, further preferably 1 to 3, and particularly preferably 2 or 3. n represents an integer of 0 to 15, preferably an integer of 0 to 5, more preferably an integer of 0 to 4, and further preferably an integer of 0 to 3.

[0228] Examples of the compound represented by formula (X) include ethylene oxide- or propylene oxide-modified (meth)acrylates of p-cumylphenol, and examples of commercially available products include ARONIX M-110 (manufactured by TOAGOSEI CO., LTD.).

[0229] As the resin, it is also preferable to contain a resin (hereinafter also referred to as resin BI) having a repeating unit containing a blocked isocyanate group. According to this embodiment, more excellent low-temperature curing properties can be obtained, and fully cured pixels can be formed even by heating at a relatively low temperature.

[0230] As the blocked isocyanate group having resin BI, a group that can generate an isocyanate group by heat is preferred, and a group that can generate an isocyanate group by heat at 70 to 150° C. is more preferred. As the blocked isocyanate group, a group having a structure in which an isocyanate group is chemically protected by a blocking agent can be cited. The blocked isocyanate group is a group having a structure in which an isocyanate group is protected by a compound called a blocking agent, and does not show reactivity as an isocyanate group at room temperature (e.g., 10 to 30° C.), but generates an isocyanate group by detaching the blocking agent from the blocked isocyanate group by heating or the like.

[0231] As the blocked isocyanate group possessed by the resin BI, a group that can generate an isocyanate group by heat at 70 to 150° C. is more preferably a group. That is, the isocyanate generation temperature of the blocked isocyanate group (the temperature at which the blocking agent is released) is preferably 70 to 150° C. From the viewpoint of storage stability, the lower limit of the isocyanate generation temperature is preferably 75° C. or more, and more preferably 80° C. or more. From the viewpoint of curability, the upper limit of the isocyanate generation temperature is preferably 130° C. or less, and more preferably 120° C. or less.

[0232] Examples of the isocyanate group-blocking agent for protecting the blocked isocyanate group include oxime compounds, lactam compounds, phenol compounds, alcohol compounds, amine compounds, active methylene compounds, pyrazole compounds, thiol compounds, imidazole compounds, and imide compounds. From the viewpoint of ease of protection reaction and 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 further preferred.

[0233] Examples of the oxime compound include acetone oxime, formaldehyde oxime, cyclohexane oxime, methyl ethyl ketone oxime, cyclohexanone oxime, and benzophenone oxime.

[0234] Examples of the lactam compound include ε-caprolactam and γ-butyrolactam.

[0235] Examples of the phenol compound include phenol, naphthol, cresol, xylenol, and halogen-substituted phenol.

[0236] Examples of the alcohol compound include methanol, ethanol, propanol, butanol, cyclohexanol, ethylene glycol monoalkyl ether, propylene glycol monoalkyl ether, and lactic acid alkyl esters.

[0237] Examples of the amine compound include primary amines and secondary amines. The amine compound may be any of aromatic amines, aliphatic amines, and alicyclic amines, and specific examples thereof include aniline, diphenylamine, ethyleneimine, and polyethyleneimine.

[0238] Examples of the active methylene compound include diethyl malonate, dimethyl malonate, ethyl acetoacetate, and methyl acetoacetate.

[0239] Examples of the pyrazole compound include pyrazole, methylpyrazole, and dimethylpyrazole.

[0240] Examples of the thiol compound include alkylthiol and arylthiol.

[0241] Examples of the imidazole compound include imidazole, 1-methylimidazole, 1-ethylimidazole, 1,2-dimethylimidazole, 2-ethyl-4-methylimidazole, 1-benzyl-2-methylimidazole, and 1-benzyl-2-phenylimidazole.

[0242] Examples of the imide compound include maleimide, succinimide, phthalimide, and derivatives thereof.

[0243] The molecular weight of the end-capping agent is preferably 50 to 200, more preferably 50 to 160, and further preferably 50 to 120. If the molecular weight of the end-capping agent is 50 or more, the detachment of the end-capping agent at suffocation temperature can be suppressed, and the storage stability of the green pixel composition can be improved. If the molecular weight of the end-capping agent is 200 or less, the end-capping agent is easily detached during the heating treatment at low temperature (for example, below 150°C) to perform a curing reaction of the composition layer, thereby easily forming a fully cured pixel. Therefore, it is easy to form a pixel in which the color shift with other colors is suppressed.

[0244] As the blocking agent, methyl ethyl ketone oxime, cyclohexanone oxime, acetone oxime, diethyl malonate, ethyl acetoacetate, ε-caprolactam, γ-butyrolactam, and pyrazole are preferred, methyl ethyl ketone oxime, acetone oxime, diethyl malonate, and pyrazole are more preferred, and methyl ethyl ketone oxime is further preferred.

[0245] Examples of the repeating unit containing a blocked isocyanate group include a repeating unit represented by the following formula (Bi-1).

[0246] [Chemical formula 12]

[0247]

[0248] In formula (Bi-1), X 1 represents the main chain of the repeating unit, L 1 represents a single bond or a divalent linking group, Z 1 Represents a blocked isocyanate group.

[0249] In formula (Bi-1), as X 1 The main chain of the represented repeating unit is not particularly limited. As long as it is a linking group formed by a known polymerizable monomer, it is not particularly limited. For example, a poly (meth) acrylic acid linking group, a polyalkylene imine linking group, a polyester linking group, a polyurethane linking group, a polyurea linking group, a polyamide linking group, a polyether linking group, a polystyrene linking group, etc. can be cited, preferably a poly (meth) acrylic acid linking group, a polystyrene linking group, more preferably a poly (meth) acrylic acid linking group.

[0250] In formula (Bi-1), L 1 The divalent linking group represented by the present invention includes alkylene (preferably an alkylene having 1 to 12 carbon atoms), arylene (preferably an arylene having 6 to 20 carbon atoms), -NH-, -SO-, -SO2-, -CO-, -O-, -COO-, -OCO-, -S-, and a group formed by combining two or more of these. The alkylene may be any of a straight chain, a branched chain, and a cyclic chain, preferably a straight chain or a branched chain. In addition, the alkylene may have a substituent or may not be substituted. As the substituent, a hydroxyl group, an alkoxy group, etc. may be mentioned.

[0251] In formula (Bi-1), Z 1 Represents a blocked isocyanate group.

[0252] In the resin BI, the content of the repeating unit containing the blocked isocyanate group in all the repeating units of the resin BI is preferably 45% by mass or more, more preferably 50% by mass or more, and further preferably 55% by mass or more. The upper limit can be 100% by mass, can be 95% by mass or less, and can be 85% by mass or less.

[0253] The composition for green pixels can contain a resin as a dispersant. As dispersants, acidic dispersants (acidic resins) and alkaline dispersants (alkaline resins) can be cited. Here, the acidic dispersant (acidic resin) refers to a resin in which the amount of acid groups is greater than the amount of alkaline groups. When the total amount of the amount of acid groups and the amount of alkaline groups is set to 100 mol%, it is preferred that the amount of acid groups in the acidic dispersant (acidic resin) accounts for more than 70 mol%, and more preferably a resin consisting essentially only of acid groups. The acid group possessed by the acidic dispersant (acidic resin) is preferably a carboxyl group. The acid value of the acidic dispersant (acidic resin) is preferably 10 to 105 mgKOH / g. In addition, the alkaline dispersant (alkaline resin) refers to a resin in which the amount of alkaline groups is greater than the amount of acid groups. As an alkaline dispersant (alkaline resin), when the total amount of the amount of acid groups and the amount of alkaline groups is set to 100 mol%, it is preferred that the amount of alkaline groups is greater than 50 mol%. The basic group contained in the basic dispersant is preferably an amino group.

[0254] As dispersants, for example, polymer dispersants [for example, polyamide amines and salts thereof, polycarboxylic acids and salts thereof, high molecular weight unsaturated acid esters, modified polyurethanes, modified polyesters, modified poly (meth) acrylates, (meth) acrylic acid copolymers, naphthalenesulfonic acid formalin condensates], polyoxyethylene alkyl phosphates, polyoxyethylene alkylamines, alkanolamines, etc. can be cited. Polymer dispersants can be further classified into linear polymers, terminal modified polymers, grafted polymers, and block polymers according to their structures. Polymer dispersants are adsorbed on the surface of particles of pigments, etc., and play a role in preventing re-agglomeration. Therefore, terminal modified polymers, grafted polymers, and block polymers having anchoring sites on the surface of particles of pigments, etc. can be cited as preferred structures. In addition, dispersants described in paragraphs 0028 to 0124 of Japanese Patent Publication No. 2011-070156 and dispersants described in Japanese Patent Publication No. 2007-277514 can also be preferably used.

[0255] Graft copolymers can also be used as dispersants. The details of the graft resin can be found in paragraphs 0131 to 0160 of Japanese Patent Publication No. 2012-137564, and the contents are incorporated into this specification. In addition, oligoimide copolymers containing nitrogen atoms in at least one of the main chain and the side chain can also be used as dispersants. Regarding oligoimide copolymers, reference can be made to paragraphs 0102 to 0174 of Japanese Patent Publication No. 2012-255128, and the contents are incorporated into this specification.

[0256] Dispersants can also be obtained as commercial products, and specific examples thereof include Disperbyk series (e.g., Disperbyk-111, 2001, etc.) manufactured by BYK Co., LTD., Solsperse series (e.g., Solsperse 20000, 76500, etc.) manufactured by Lubrizol Japan Limited., and AJISPER series manufactured by Ajinomoto Fine-Techno Co., Inc., etc. In addition, the products described in paragraph 0129 of Japanese Patent Application Laid-Open No. 2012-137564 and the products described in paragraph 0235 of Japanese Patent Application Laid-Open No. 2017-194662 can also be used as dispersants.

[0257] The content of the resin in the total solid content of the green pixel composition is preferably 5 to 50% by mass, the upper limit is preferably 40% by mass or less, more preferably 30% by mass or less, and the lower limit is preferably 7.5% by mass or more, more preferably 10% by mass or more.

[0258] The content of the resin is preferably 25 to 500 parts by mass relative to 100 parts by mass 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.

[0259] The content of the alkali-soluble resin in the total amount of resins contained in the green pixel composition is preferably 0.1 to 100% by mass, more preferably 5 to 100% by mass, and the upper limit can be 90% by mass or less, 80% by mass or less, or 70% by mass or less.

[0260] Furthermore, the content of the alkali-soluble resin in the total solid content of the green pixel composition is preferably 5 to 50% by mass, the upper limit is preferably 40% by mass or less, more preferably 30% by mass or less, and the lower limit is preferably 10% by mass or more, more preferably 12.5% ​​by mass or more.

[0261] The content of the resin BI in the total amount of the resin contained in the green pixel composition is preferably 0.1 to 100 mass %, more preferably 5 to 100 mass %, and the upper limit can be 90 mass % or less, 80 mass % or less, or 70 mass % or less.

[0262] Furthermore, the content of the resin BI in the total solid content of the green pixel composition is preferably 5 to 50% by mass, the upper limit is preferably 40% by mass or less, more preferably 30% by mass or less, and the lower limit is preferably 10% by mass or more, more preferably 12.5% ​​by mass or more.

[0263] 《Furanyl-containing compounds》

[0264] The green pixel composition can contain a compound containing a furanyl group (hereinafter, also referred to as a furanyl-containing compound). According to this method, the curing property at low temperature is excellent. For example, when a compound containing a group containing an ethylenically unsaturated bond is used as a polymerizable compound, the furanyl group of the furanyl-containing compound and the group containing an ethylenically unsaturated bond of the above-mentioned polymerizable compound can form a bond at a low temperature of less than 150°C through a Diels-Alder reaction, so the low temperature curing is excellent.

[0265] The structure of the furanyl group-containing compound is not particularly limited as long as it contains a furanyl group (a group formed by removing one hydrogen atom from furan). As the furanyl group-containing compound, compounds described in paragraphs 0049 to 0089 of JP-A-2017-194662 can be used. In addition, as the furanyl-containing compound, compounds described in JP-A-2000-233581, JP-A-1994-271558, JP-A-1994-293830, JP-A-1996-239421, JP-A-1998-508655, JP-A-2000-001529, JP-A-2003-183348, JP-A-2006-193628, JP-A-2007-186684, JP-A-2010-265377, JP-A-2011-170069, etc. can also be used.

[0266] In the total solid content of the green pixel composition, the content of the furanyl-containing compound is preferably 0.1 to 50% by mass. The lower limit is preferably 2.5% by mass or more, more preferably 5.0% by mass or more, and further preferably 7.5% by mass or more. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less, and further preferably 25% by mass or less.

[0267] 《Compounds with epoxy groups》

[0268] The composition for green pixels can contain a compound having an epoxy group. As a compound having an epoxy group, a compound having two or more epoxy groups in one molecule is preferred. It is preferred to have 2 to 100 epoxy groups in one molecule. The upper limit can be set to, 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 further preferably 100 to 300 g / eq. The compound having an epoxy group can be a low molecular weight compound (e.g., a molecular weight of less than 1000) or a high molecular weight compound (macromolecule) (e.g., a molecular weight of 1000 or more, and when it is a polymer, a weight average molecular weight of 1000 or more). The molecular weight of the compound having an epoxy group (the weight average molecular weight in the case of a polymer) is preferably 200 to 100,000, and more preferably 500 to 50,000. The upper limit of the molecular weight (in the case of a polymer, the weight average molecular weight) is preferably 3,000 or less, more preferably 2,000 or less, and further preferably 1,500 or less.

[0269] As the compound having an epoxy group, the compounds described in paragraphs 0034 to 0036 of JP-A-2013-011869, paragraphs 0147 to 0156 of JP-A-2014-043556, paragraphs 0085 to 0092 of JP-A-2014-089408, and the compounds described in JP-A-2017-179172 can also be used, and these contents are incorporated into this specification.

[0270] In the total solid content of the green pixel composition, the content of the compound having an epoxy group is preferably 0.1 to 30% by mass. The lower limit is preferably 0.5% by mass or more, and more preferably 1% by mass or more. The upper limit is more preferably 25% by mass or less, and further preferably 20% by mass or less. The compound having an epoxy group can be used alone or in combination of two or more. In the case of using two or more, their total amount is preferably within the above range.

[0271] Solvents

[0272] The composition for green pixels preferably contains a solvent. As the solvent, an organic solvent can be mentioned. As long as the solvent satisfies the solubility of each component and the coating property of the composition, there is basically no particular limitation. As organic solvents, ester solvents, ketone solvents, alcohol solvents, amide solvents, ether solvents, hydrocarbon solvents, etc. can be mentioned. For details of these, reference can be made to paragraph 0223 of International Publication No. 2015 / 166779, and the content is incorporated into this specification. In addition, cyclic alkyl substituted ester solvents and cyclic alkyl substituted ketone solvents can also be preferably used. Specific examples of organic solvents include polyethylene glycol monomethyl ether, methylene chloride, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl celulose 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-dimethylpropionamide, 3-butoxy-N, N-dimethylpropionamide, etc. However, aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, etc.) as solvents may be preferably reduced in amount for reasons such as environmental considerations (for example, it may be set to 50 mass ppm (parts per million) or less, 10 mass ppm or less, or 1 mass ppm or less relative to the total amount of the organic solvent).

[0273] As the solvent, it is preferred to use a solvent with a low metal content. The metal content of the solvent is preferably, for example, 10 mass ppb (parts per billion) or less. If necessary, a mass ppt (parts pertrillion) level solvent may also be used, such as provided by TOYO Gosei Co., Ltd. (Chemical Industry Daily, November 13, 2015).

[0274] As a method for removing impurities such as metals from a solvent, for example, distillation (molecular distillation or thin film distillation, etc.) or filtering using a filter can be cited. The filter pore size of the filter used for filtering is preferably 10 μm or less, more preferably 5 μm or less, and further preferably 3 μm or less. The material of the filter is preferably polytetrafluoroethylene, polyethylene or nylon.

[0275] The solvent may contain isomers (compounds having the same number of atoms but different structures). Also, the isomers may contain only one type or multiple types.

[0276] The content of the peroxide in the organic solvent is preferably 0.8 mmol / L or less, and more preferably substantially no peroxide is contained.

[0277] The content of the solvent in the green pixel 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 further preferably 85% by mass or less. The lower limit is preferably 65% ​​by mass or more, more preferably 70% by mass or more, and further preferably 75% by mass or more. The solvent can be used alone or in combination of two or more. In the case of two or more, their total amount is preferably within the above range.

[0278] Pigment derivatives

[0279] The composition for green pixels can contain a pigment derivative. As a pigment derivative, a compound having a structure in which a part of the chromophore is substituted with an acid group, a basic group or a phthalimide methyl group can be cited. As the chromophore constituting the pigment derivative, a quinoline skeleton, a benzimidazolone skeleton, a diketopyrrolopyrrole skeleton, an azo skeleton, a phthalocyanine skeleton, an anthraquinone skeleton, a quinacridone skeleton, a dioxazine skeleton, a purple cyclic ketone skeleton, a perylene skeleton, a thioindigo skeleton, an isoindoline skeleton, an isoindoline skeleton, a quinophthalone skeleton, a styrene skeleton, a metal complex skeleton, etc. can be cited, among which a quinoline skeleton, a benzimidazolone skeleton, a diketopyrrolopyrrole skeleton, an azo skeleton, a quinophthalone skeleton, an isoindoline skeleton and a phthalocyanine skeleton are preferred, and an azo skeleton and a benzimidazolone skeleton are more preferred. As the acid group possessed by the pigment derivative, a sulfonic group and a carboxyl group are preferred, and a sulfonic group is more preferred. As the basic group possessed by the pigment derivative, an amino group is preferred, and a tertiary amine group is more preferred. Specific examples of the pigment derivatives include Japanese Patent Application Laid-Open No. 56-118462, Japanese Patent Application Laid-Open No. 63-264674, Japanese Patent Application Laid-Open No. 01-217077, Japanese Patent Application Laid-Open No. 03-009961, Japanese Patent Application Laid-Open No. 03-026767, Japanese Patent Application Laid-Open No. 03-153780, and Japanese Patent Application Laid-Open No. 03-045662. , Japanese Patent Application Laid-Open No. 04-285669, Japanese Patent Application Laid-Open No. 06-145546, Japanese Patent Application Laid-Open No. 06-212088, Japanese Patent Application Laid-Open No. 06-240158, Japanese Patent Application Laid-Open No. 10-030063, Japanese Patent Application Laid-Open No. 10-195326, paragraphs 0086 to 0098 of International Publication No. 2011 / 024896, International Publication No. Paragraphs 0063 to 0094 of International Publication No. 2012 / 102399, paragraph 0082 of International Publication No. 2017 / 038252, paragraph 0171 of Japanese Patent Publication No. 2015-151530, paragraphs 0162 to 0183 of Japanese Patent Publication No. 2011-252065, Japanese Patent Publication No. 2003-081972, Japanese Patent No. 5299151, Compounds described in JP-A-2015-172732, JP-A-2014-199308, JP-A-2014-085562, JP-A-2014-035351, JP-A-2008-081565, JP-A-2019-109512, and JP-A-2019-133154.

[0280] The content of the pigment derivative is preferably 0.1 to 30 parts by mass relative to 100 parts by mass of the pigment. The lower limit of this range is more preferably 0.25 parts by mass or more, further preferably 0.5 parts by mass or more, particularly preferably 0.75 parts by mass or more, and more preferably 1 part by mass or more. Furthermore, the upper limit of this range is more preferably 25 parts by mass or less, further preferably 20 parts by mass or less, and particularly preferably 15 parts by mass or less.

[0281] 《Curing accelerator》

[0282] In the composition for green pixels, a curing accelerator may be added for the purpose of promoting 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. The polyfunctional thiol compound may be added for the purpose of improving stability, odor, resolution, developability, adhesion, etc. In addition, the curing accelerator may also include hydroxymethyl compounds (for example, compounds exemplified as crosslinking agents in paragraph 0246 of Japanese Patent Publication No. 2015-034963), amines, phosphonium salts, amidine salts, amide compounds (for example, the curing agents described in paragraph 0186 of Japanese Patent Publication No. 2013-041165), base generators (for example, ionic compounds described in Japanese Patent Publication No. 2014-055114), cyanate compounds ( For example, compounds described in paragraph 0071 of Japanese Patent Publication No. 2012-150180), alkoxysilane compounds (for example, alkoxysilane compounds having epoxy groups described in Japanese Patent Publication No. 2011-253054), onium salt compounds (for example, compounds exemplified as acid generators in paragraph 0216 of Japanese Patent Publication No. 2015-034963, compounds described in Japanese Patent Publication No. 2009-180949), etc. The content of the curing accelerator is preferably 0.3 to 8.9% by mass, more preferably 0.8 to 6.4% by mass in the total solid content of the green pixel composition.

[0283] 《Silane coupling agent》

[0284] The green pixel composition may 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 preferably has a silane compound having at least one group selected from vinyl, epoxy, styryl, methacryloyl, amino, isocyanurate, urea, mercapto, thioether and isocyanate groups and an alkoxy group. 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., KBE-903), 3-methacryloxypropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-503), 3-glycidyloxypropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-504), and 3-glycidyloxypropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-603). Co., Ltd. manufacturing, KBM-403) and the like. For the details of the silane coupling agent, reference can be made to the records of paragraphs 0155 to 0158 of Japanese Patent Gazette No. 2013-254047, and the content is incorporated into this specification. In the total solid content of the green pixel composition, the content of the silane coupling agent is preferably 0.001 to 20% by mass, more preferably 0.01 to 10% by mass, and particularly preferably 0.1% to 5% by mass. The green pixel composition may contain only one silane coupling agent or more than two silane coupling agents. In the case of containing more than two kinds, the total amount is preferably within the above range.

[0285] 《Polymerization Inhibitors》

[0286] The composition for green pixels can contain a polymerization inhibitor. As the polymerization inhibitor, hydroquinone, p-methoxyphenol, di-tert-butyl-p-cresol, gallol, tert-butyl catechol, benzoquinone, 4,4'-thiobis (3-methyl-6-tert-butylphenol), 2,2'-methylenebis (4-methyl-6-tert-butylphenol), N-nitrosobishydroxyamine salt (ammonium salt, cerium salt, etc.) and the like can be cited. In the total solid content of the composition for green pixels, the content of the polymerization inhibitor is preferably 0.0001 to 5% by mass. The composition for green pixels may contain only one polymerization inhibitor or may contain more than two polymerization inhibitors. In the case of containing more than two, it is preferred that the total amount is within the above range.

[0287] 《UV absorber》

[0288] The composition for green pixels may contain an ultraviolet absorber. The ultraviolet absorber may include conjugated diene compounds, aminodiene compounds, salicylate compounds, benzophenone compounds, benzotriazole compounds, acrylonitrile compounds, hydroxyphenyltriazine compounds, indole compounds, triazine compounds, and the like. For details of these, reference may be made to paragraphs 0052 to 0072 of Japanese Patent Publication No. 2012-208374, paragraphs 0317 to 0334 of Japanese Patent Publication No. 2013-068814, and paragraphs 0061 to 0080 of Japanese Patent Publication No. 2016-162946, and these contents are incorporated into this specification. Commercially available products of ultraviolet absorbers include, for example, UV-503 (manufactured by DAITO CHEMICAL CO., LTD.) and the like. In addition, as benzotriazole compounds, the MYUA series manufactured by MIYOSHI & FAT CO., LTD. can be cited (Chemical Industry Daily, February 1, 2016). In addition, as ultraviolet absorbers, compounds described in paragraphs 0049 to 0059 of Japanese Patent Gazette No. 6268967 can also be used. In the total solid content of the green pixel composition, the content of the ultraviolet absorber is preferably 0.1 to 10% by mass, more preferably 0.1 to 5% by mass, and particularly preferably 0.1 to 3% by mass. Only one ultraviolet absorber can be used, or two or more can be used. When two or more are used, the total amount is preferably within the above range.

[0289] Surfactants

[0290] The green pixel composition may contain a surfactant. As the surfactant, various surfactants such as a fluorine-based surfactant, a nonionic surfactant, a cationic surfactant, an anionic surfactant, and a silicon-based surfactant may be used. As for the surfactant, the surfactants described in paragraphs 0238 to 0245 of International Publication No. 2015 / 166779 may be cited, and the contents are incorporated into this specification.

[0291] The surfactant is preferably a fluorine-based surfactant. By including a fluorine-based surfactant in the composition, the liquid properties (especially fluidity) can be further improved, and the liquid saving property can be further improved. In addition, a film with less uneven thickness can be formed.

[0292] The fluorine content in the fluorine-based surfactant is preferably 3 to 40% by mass, more preferably 5 to 30% by mass, and particularly preferably 7 to 25% by mass. Fluorine-based surfactants having a fluorine content within this range are effective in terms of thickness uniformity and liquid saving of the coating film, and also have good solubility in the composition.

[0293] Examples of the fluorine-based surfactant include the surfactants described in paragraphs 0060 to 0064 of JP-A-2014-041318 (paragraphs 0060 to 0064 of the corresponding International Publication No. 2014 / 017669), and the surfactants described in paragraphs 0117 to 0132 of JP-A-2011-132503, and these contents are incorporated into the present specification. Examples of commercially available fluorine-based surfactants include Magaface F171, F172, F173, F176, F177, F141, F142, F143, F144, R30, F437, F475, F479, F482, F554, F780, EXP, MFS-330 (all manufactured by DIC Corporation), Fluorad FC430, FC431, FC171 (all manufactured by Sumitomo 3M Limited), Surflon S-382, SC-101, SC-103, SC-104, SC-105, SC-1068, SC-381, SC-383, S-393, KH-40 (all manufactured by AGC Corporation), Inc.), PolyFoxPF636, PF656, PF6320, PF6520, PF7002 (all manufactured by OMNOVASOLUTIONS INC.), etc.

[0294] In addition, the fluorine-based surfactant has a molecular structure having a functional group containing a fluorine atom, and when heated, the part of the functional group containing a fluorine atom is cut off, and an acrylic compound volatilized by the fluorine atom can be appropriately used. As such a fluorine-based surfactant, the MEGAFACE DS series manufactured by DIC Corporation (Chemical Industry Daily (February 22, 2016), Nikkei Industry News (February 23, 2016)) can be cited, for example, MEGAFACE DS-21.

[0295] In addition, the fluorine-based surfactant is preferably a polymer of a fluorine-containing vinyl ether compound having a fluorinated alkyl or fluorinated alkylene ether group and a hydrophilic vinyl ether compound. These fluorine-based surfactants include the fluorine-based surfactants described in Japanese Patent Application Publication No. 2016-216602, and the content is incorporated into this specification.

[0296] The fluorine-based surfactant can also use a block polymer. The fluorine-based surfactant can also preferably use a fluorine-containing polymer compound, which contains: a repeating unit derived from a (meth)acrylate compound having a fluorine atom; and a repeating unit derived from a (meth)acrylate compound having two or more (preferably five or more) alkyleneoxy groups (preferably ethyleneoxy and propyleneoxy). In addition, as the fluorine-based surfactant, the fluorine-containing surfactant described in paragraphs 0016 to 0037 of Japanese Patent Application Publication No. 2010-032698 or the following compounds can be exemplified.

[0297] [Chemical formula 13]

[0298]

[0299] The weight average molecular weight of the above compound is preferably 3000 to 50000, for example, 14000. In the above compound, % indicating the ratio of the repeating unit is mol %.

[0300] In addition, the fluorine-based surfactant can also use a fluorine-containing polymer having a group containing an ethylenically unsaturated bond in the side chain. As specific examples, compounds described in paragraphs 0050 to 0090 and 0289 to 0295 of Japanese Patent Publication No. 2010-164965, and MEGAFACERS-101, RS-102, RS-718K, and RS-72-K manufactured by DIC Corporation can be cited. In addition, the fluorine-based surfactant can also use compounds described in paragraphs 0015 to 0158 of Japanese Patent Publication No. 2015-117327.

[0301] The content of the surfactant in the total solid content of the green pixel composition is preferably 0.001% to 5.0% by mass, and more preferably 0.005% to 3.0% by mass. The surfactant may be only one or two or more. When there are two or more, the total amount is preferably within the above range.

[0302] 《Other additives》

[0303] As required, various additives can be formulated in the green pixel composition, for example, fillers, adhesion promoters, antioxidants, anticoagulants, etc. As these additives, the additives described in paragraphs 0155 to 0156 of Japanese Patent Publication No. 2004-295116 can be cited, and the content is incorporated into this specification. In addition, as antioxidants, for example, phenolic compounds, phosphorus compounds (for example, compounds described in paragraph 0042 of Japanese Patent Publication No. 2011-090147), thioether compounds, etc. can be used. As commercially available products, for example, the Adekastab series (A0-20, A0-30, A0-40, A0-50, A0-50F, A0-60, A0-60G, A0-80, A0-330, etc.) manufactured by ADEKA CORPORATION can be cited. Furthermore, as an antioxidant, a multifunctional hindered amine antioxidant described in International Publication No. 2017 / 006600, an antioxidant described in International Publication No. 2017 / 164024, and an antioxidant described in paragraphs 0023 to 0048 of Japanese Patent Gazette No. 6268967 can also be used. Only one antioxidant may be used, or two or more antioxidants may be used. Furthermore, a potential antioxidant may be contained as required. As a potential antioxidant, a compound in which a portion that functions as an antioxidant is protected by a protecting group can be cited, and the compound is heated at 100 to 250° C. or heated at 80 to 200° C. in the presence of an acid / base catalyst, and the protecting group is detached to function as an antioxidant. As specific examples of potential antioxidants, compounds described in International Publication No. 2014 / 021023, International Publication No. 2017 / 030005, and Japanese Patent Publication No. 2017-008219 can be cited. As commercially available products, ADEKAARKLS GPA-5001 (manufactured by ADEKA CORPORATION) can be cited. In addition, the green pixel composition can contain a sensitizer or light stabilizer described in paragraph 0078 of Japanese Patent Publication No. 2004-295116, a thermal inhibitor described in paragraph 0081 of Japanese Patent Publication No. 2004-295116, and a storage stabilizer described in paragraph 0242 of Japanese Patent Publication No. 2018-091940.

[0304] <Composition for red pixel>

[0305] Colorants

[0306] The composition for red pixels contains one or more red coloring agents selected from CI Pigment Red 177, CI Pigment Red 264, and CI Pigment Red 269, and a yellow coloring agent other than CI Pigment Yellow 150.

[0307] As a yellow colorant other than CI Pigment Yellow 150 (hereinafter also referred to as yellow colorant 1), the yellow colorants described in the above-mentioned section of the red pixel can be cited, preferably at least one selected from isoindoline compounds and quinophthalone compounds, and more preferably at least one selected from CI Pigment Yellow 139 and CI Pigment Yellow 185. In addition, the above-mentioned yellow colorant 1 is preferably a yellow colorant of a different type from the yellow colorant contained in the composition for green pixels.

[0308] The yellow colorant contained in the red pixel composition may include CI Pigment Yellow 150, but it is preferred that CI Pigment Yellow 150 is substantially not contained because it is easier to suppress the color shift between the green pixel and the red pixel. That is, the yellow colorant contained in the red pixel composition is preferably substantially only Yellow Colorant 1.

[0309] The red pixel composition contains one or more red colorants (hereinafter also referred to as red colorant 1) selected from CI Pigment Red 177, CI Pigment Red 264, and CI Pigment Red 269. Red colorant 1 is preferably Pigment Red 177 or 264 from the viewpoint of durability.

[0310] The red pixel composition may contain other red colorants in addition to the above-mentioned red colorant 1. As other red colorants, the red colorants described in the above-mentioned red pixel section can be cited. The content of the above-mentioned red colorant 1 in the red colorant contained in the red pixel composition is preferably 50 to 100% by mass, more preferably 75 to 100% by mass, and further preferably 90 to 100% by mass.

[0311] The composition for red pixels may contain a colorant other than a red colorant and a yellow colorant (hereinafter, also referred to as other colorants). Examples of other colorants include purple colorants, orange colorants, and the like. Examples of purple colorants include CI Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60, and 61. Examples of orange colorants include CI Pigment Orange 2, 5, 13, 16, and 17: 1, 31, 34, 36, 38, 43, 46, 48, 49, 51, 52, 55, 59, 60, 61, 62, 64, 71, and 73. The content of other colorants is preferably 20 parts by mass or less, more preferably 12 parts by mass or less, and further preferably 6 parts by mass or less, relative to a total of 100 parts by mass of the red colorant 1 and the yellow colorant 1.

[0312] The content of the colorant in the total solid content of the red pixel composition is preferably 15% by mass or more, more preferably 20% by mass or more, and further preferably 25% by mass or more. The upper limit is preferably 60% by mass or less, more preferably 50% by mass or less, and further preferably 40% by mass or less.

[0313] The red pixel composition preferably contains 5 to 100 parts by mass of the yellow colorant 1, more preferably 10 to 90 parts by mass, and even more preferably 20 to 80 parts by mass, based on 100 parts by mass of the red colorant 1.

[0314] The total content of the red colorant 1 and the yellow colorant 1 in the total solid content of the red pixel composition is preferably 15 to 60% by mass, more preferably 22 to 52% by mass, and even more preferably 29 to 45% by mass.

[0315] 《Other Materials》

[0316] The red pixel composition may contain the materials listed in the description of the green pixel composition as components other than the colorant (polymerizable compound, photopolymerization initiator, resin, furanyl-containing compound, epoxy-containing compound, solvent, pigment derivative, curing accelerator, silane coupling agent, polymerization inhibitor, ultraviolet absorber, surfactant, etc.). The details, preferred ranges and contents of these materials are the same as those described above.

[0317] <Method for Manufacturing Color Filter>

[0318] The color filter of the present invention can be manufactured through a process of forming green pixels and a process of forming red pixels, wherein a green pixel composition containing colorimetric index pigment Green 7 and colorimetric index pigment Yellow 150 is used to form the green pixels in the process of forming the green pixels, and a green pixel composition containing one or more red colorants selected from colorimetric index pigment Red 177, colorimetric index pigment Red 264 and colorimetric index pigment Red 269 and a yellow colorant other than colorimetric index pigment Yellow 150 is used to form the red pixels in the process of forming the red pixels.

[0319] In the process of forming green pixels, it is preferred to form green pixels by photolithography using a green pixel composition. And, in the process of forming red pixels, it is preferred to form red pixels by photolithography using a red pixel composition. The method of forming pixels using photolithography preferably includes: a process of coating a pixel-forming composition on a support to form a composition layer; a process of exposing the composition layer to a pattern; and a process of developing the exposed composition layer. As needed, a process (pre-baking process) of drying the composition layer and a process (post-baking process) of heating the pixels after development can be provided. By performing the above process for each color, a color filter with green pixels and red pixels can be manufactured.

[0320] Furthermore, the process of forming a green pixel and the process of forming a red pixel are preferably performed at a temperature below 150°C, respectively. In addition, in this specification, "the process of forming a green pixel is performed at a temperature below 150°C" means that the entire process of forming a green pixel using a green pixel composition is performed at a temperature below 150°C. For example, in the case of forming a green pixel by photolithography, when a post-baking process is provided, it means that the post-baking process is also performed at a temperature below 150°C. The meaning of "the process of forming a red pixel is performed at a temperature below 150°C" is also the same.

[0321] Preferably, at least one selected from the green pixel composition and the red pixel composition contains an alkali-soluble resin, and more preferably, either the green pixel composition or the red pixel composition contains an alkali-soluble resin. According to this embodiment, patterning properties by photolithography are excellent.

[0322] Preferably, at least one of the green pixel composition and the red pixel composition contains a resin having a repeating unit containing a blocked isocyanate group, and more preferably, either the green pixel composition or the red pixel composition contains a resin having a repeating unit containing a blocked isocyanate group. According to this embodiment, better low-temperature curing properties can be obtained, and fully cured pixels can be formed even when heated at a relatively low temperature (e.g., below 150°C).

[0323] Hereinafter, a method of forming pixels by photolithography will be described.

[0324] In the process of forming a composition layer, the pixel-forming composition of the present invention is coated on a support to form a composition layer. As a support, there is no particular limitation and it can be appropriately selected according to the purpose. For example, a glass substrate, a silicon substrate, etc. can be mentioned. In addition, a charge coupled device (CCD), a complementary metal oxide semiconductor (CMOS), a transparent conductive film, etc. can be formed on the silicon substrate. In addition, a black matrix is ​​sometimes formed on the silicon substrate to isolate each pixel. In addition, in order to improve the adhesion with the upper layer, prevent the diffusion of substances or flatten the surface of the substrate, a primer layer can be provided on the silicon substrate. When measured with diiodomethane, the surface contact angle of the primer layer is preferably 20 to 70°. And, when measured with water, it is preferably 30 to 80°. If the surface contact angle of the primer layer is within the above range, the coating property of the pixel-forming composition is good. The adjustment of the surface contact angle of the primer layer can be carried out, for example, by adding a surfactant.

[0325] As a coating method for the pixel forming composition, a known method can be used. For example, drop coating (drop casting), slit coating, spray coating, roller coating, spin coating (spin coating), cast coating, slit spin coating, pre-wetting method (for example, the method described in Japanese Patent Gazette No. 2009-145395), inkjet (for example, on-demand method, piezoelectric method, thermal method), nozzle jetting and other jet printing, flexographic printing, screen printing, gravure printing, reverse offset printing and metal mask printing and other printing methods, transfer methods using molds, nanoimprinting, etc. can be cited. The inkjet-based application method is not particularly limited, and examples thereof include the method described in "Expanded / Usable Inkjet - Infinite Possibilities Seen in Patents -, published in February 2005, SBRESEARCH CO., LTD." (particularly pages 115 to 133) or Japanese Patent Publication No. 2003-262716, Japanese Patent Publication No. 2003-185831, Japanese Patent Publication No. 2003-261827, Japanese Patent Publication No. 2012-126830, Japanese Patent Publication No. 2006-169325, etc. In addition, with regard to the coating method of the pixel-forming composition, reference can be made to the descriptions of International Publication No. 2017 / 030174 and International Publication No. 2017 / 018419, and these contents are incorporated into this specification.

[0326] The colored composition layer formed on the support may also be dried (prebaked). When prebaking is performed, the prebaking temperature is preferably 150°C or less, more preferably 120°C or less, and further preferably 110°C or less. The lower limit may be, for example, 50°C or more, or 80°C or more. The prebaking time is preferably 10 to 3000 seconds. Prebaking may be performed using a hot plate, an oven, or the like.

[0327] Next, the composition layer is exposed to light in a pattern (exposure step). For example, a stepper or scanner is used to expose the composition layer through a mask having a predetermined mask pattern, thereby exposing the composition layer to a pattern. Thus, the exposed portion can be cured.

[0328] As radiation (light) that can be used during exposure, g-rays, i-rays, etc. can be cited. In addition, light with a wavelength of 300nm or less (preferably light with a wavelength of 180 to 300nm) can also be used. As light with a wavelength of 300nm or less, KrF rays (wavelength 248nm), ArF rays (wavelength 193nm), etc. can be cited, preferably KrF rays (wavelength 248nm). In addition, long-wave light sources with a wavelength of 300nm or more can also be used.

[0329] Furthermore, during exposure, the light may be continuously irradiated or pulsed (pulse exposure). In addition, pulse exposure refers to an exposure method in which light is repeatedly irradiated and stopped in a short period of time (e.g., less than milliseconds) to perform exposure.

[0330] The irradiation amount (exposure amount) is preferably 0.03 to 2.5 J / cm 2 , more preferably 0.05 to 1.0 J / cm 2 The oxygen concentration during exposure can be appropriately selected. In addition to exposure under the atmosphere, exposure can also be performed in a low oxygen atmosphere with an oxygen concentration of 19% by volume or less (e.g., 15% by volume, 5% by volume, or substantially oxygen-free), or in a high oxygen atmosphere with an oxygen concentration greater than 21% by volume (e.g., 22% by volume, 30% by volume, or 50% by volume). In addition, the exposure illuminance can be appropriately set, usually from 1000 W / m 2 ~100000W / m 2 (For example, 5000W / m 2 , 15000W / m 2 or 35000W / m 2 The oxygen concentration and exposure illuminance can be appropriately combined, for example, the oxygen concentration can be set to 10% by volume and the illuminance can be set to 10000 W / m 2 , set the oxygen concentration to 35 volume % and the illumination to 20000 W / m 2 wait.

[0331] Also, it is preferred to use 1 J / cm 2 The above exposure amount is performed by irradiating light (preferably i-ray) having a wavelength greater than 350 nm and less than 380 nm. By performing exposure in this manner, the composition layer can be sufficiently cured.

[0332] Next, the exposed composition layer is developed. Next, the unexposed portion of the composition layer is removed by development to form a pattern (pixel). The development and removal of the unexposed portion of the composition layer can be performed using a developer. As a result, the unexposed portion of the composition layer in the exposure process is dissolved in the developer, and only the photocured portion remains. The temperature of the developer is preferably, for example, 20 to 30°C. The development time is preferably 20 to 180 seconds. In addition, in order to improve the removability of the residue, the process of shaking off the developer every 60 seconds and then supplying a new developer can be repeated multiple times.

[0333] The developer can include organic solvents, alkaline developers, etc., and alkaline developers can be preferably used. As an alkaline developer, an alkaline aqueous solution (alkaline developer) of an alkaline agent diluted with pure water is preferably used. As an alkali agent, for example, ammonia, ethylamine, diethylamine, dimethylethanolamine, diglycolamine, diethanolamine, hydroxylamine, ethylenediamine, tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, tetrabutylammonium hydroxide, ethyltrimethylammonium hydroxide, benzyltrimethylammonium hydroxide, dimethylbis(2-hydroxyethyl)ammonium hydroxide, choline, pyrrole, piperidine, 1,8-diazabicyclo-[5.4.0]-7-undecene and other organic alkaline compounds or inorganic alkaline compounds such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium bicarbonate, sodium silicate, sodium metasilicate, etc. can be mentioned. From the perspective of environment and safety, the alkali agent is preferably a compound with a large molecular weight. The concentration of the alkali agent in the alkaline aqueous solution is preferably 0.001 to 10% by mass, and more preferably 0.01 to 1% by mass. Furthermore, the developer may further contain a surfactant. From the viewpoint of convenience of transportation and storage, the developer may also be prepared as a concentrated solution first, and then diluted to the desired concentration when used. The dilution ratio is not particularly limited, for example, it can be set in the range of 1.5 to 100 times. Furthermore, it is also preferred to use pure water for cleaning (rinsing) after development. Furthermore, it is preferred to rotate the support body formed with the developed composition layer while supplying a rinse liquid to the developed colored composition layer for rinsing. Furthermore, it is also preferred to move the nozzle spraying the rinse liquid from the center of the support body to the peripheral portion of the support body. At this time, when the nozzle moves from the center of the support body to the peripheral portion, it can be moved while gradually reducing the movement speed of the nozzle. By rinsing as above, the in-plane deviation of the rinse can be suppressed. Furthermore, the same effect can be obtained by gradually reducing the rotation speed of the support body while moving the nozzle from the center of the support body to the peripheral portion.

[0334] After development, it is preferred to dry and then perform additional exposure treatment or heating treatment (post-baking). Additional exposure treatment or post-baking is a curing treatment after development for achieving complete curing.

[0335] When post-baking is performed, the heating temperature is preferably 100 to 150°C. The upper limit of the heating temperature is preferably below 120°C. The heating time is preferably more than 1 minute, more preferably more than 5 minutes, and further preferably more than 10 minutes. The upper limit is not particularly limited, but from the perspective of productivity, it is preferably less than 20 minutes. Post-baking is also preferably performed in an inert gas atmosphere. According to this method, thermal polymerization can be performed with very high efficiency without being hindered by oxygen, and even when pixels are manufactured at a temperature below 150°C throughout the entire process, pixels with excellent properties such as good flatness and solvent resistance can be manufactured. As inert gases, nitrogen, argon, helium, etc. can be mentioned, preferably nitrogen. The oxygen concentration during post-baking is preferably less than 100 ppm.

[0336] When performing additional exposure treatment, it is preferred to irradiate light with a wavelength of 254 to 350 nm for exposure. As a more preferred embodiment, it is preferably performed as follows: regarding the process of exposing the composition layer to a pattern (exposure before development), the composition layer is exposed to light with a wavelength greater than 350 nm and less than 380 nm (preferably light with a wavelength of 355 to 370 nm, more preferably i-rays), and regarding the additional exposure treatment (exposure after development), the developed composition layer is exposed to light with a wavelength of 254 to 350 nm (preferably light with a wavelength of 254 nm). According to this method, the composition layer can be properly cured in the initial exposure (exposure before development), and the entire composition layer can be almost completely cured in the next exposure (exposure after development). Therefore, as a result, the composition layer can be fully cured even under low temperature conditions, thereby forming pixels with excellent characteristics such as solvent resistance, adhesion and rectangularity. As described above, when the exposure is performed in two stages, the pixel-forming composition preferably uses a substance containing photopolymerization initiator A1 and photopolymerization initiator A2 as the photopolymerization initiator, wherein the extinction coefficient of the photopolymerization initiator A1 in methanol at a wavelength of 365 nm is 1.0×10 3 mL / gcm or more, the absorption coefficient of the photopolymerization initiator A2 in methanol at a wavelength of 365 nm is 1.0×10 2 mL / gcm or less and the absorption coefficient at a wavelength of 254nm is 1.0×10 3 mL / gcm or more.

[0337] The exposure after the development can be performed using, for example, an ultraviolet photoresist curing device. The ultraviolet photoresist curing device can irradiate, for example, light with a wavelength of 254 to 350 nm and other light (for example, i-rays).

[0338] The exposure amount (irradiation amount) in the exposure after development is preferably 30 to 4000 mJ / cm 2 , more preferably 50 to 3500 mJ / cm 2The difference between the wavelength of light used in exposure before development and the wavelength of light used in exposure after development is preferably 200 nm or less, more preferably 100 to 150 nm.

[0339] <Solid-state imaging device>

[0340] The solid-state imaging device of the present invention has the color filter of the present invention described above. The structure of the solid-state imaging device is not particularly limited as long as it has the color filter of the present invention and functions as a solid-state imaging device, and examples thereof include the following structures.

[0341] The structure of the solid-state imaging element is as follows: a substrate has a plurality of photodiodes and a transfer electrode of polysilicon or the like including a light-receiving area constituting the solid-state imaging element (CCD (charge coupled device) image sensor, CMOS (complementary metal oxide semiconductor) image sensor, etc.), a light-shielding film having only the light-receiving portion of the photodiode opened on the photodiode and the transfer electrode, a device protection film formed of silicon nitride or the like in a manner covering the entire surface of the light-shielding film and the light-receiving portion of the photodiode on the light-shielding film, and a color filter on the device protection film. Furthermore, it may be a structure having a focusing mechanism (e.g., a microlens, etc., the same below) on the device protection film and below the color filter (on the side close to the substrate) or a structure having a focusing mechanism on the color filter. An imaging device having a solid-state imaging element can be used as an imaging device for a vehicle-mounted camera or a surveillance camera in addition to a digital camera or an electronic device having an imaging function (such as a mobile phone).

[0342] <Display device>

[0343] The display device of the present invention has the color filter of the present invention described above. As the display device, a liquid crystal display device and an organic electroluminescent display device can be cited. The definition of the display device and the details of each display device are recorded in, for example, "Electronic Display Device (written by Akio Sasaki, published by Kogyo Chosakai Publishing Co., Ltd. in 1990)", "Display Device (written by Junaki Ibuki, published by Sangyo-Tosho Publishing Co., Ltd. in 1989)" and the like. In addition, regarding the liquid crystal display device, it is recorded in, for example, "Next Generation Liquid Crystal Display Technology (edited by Tatsuo Uchida, published by Kogyo Chosakai Publishing Co., Ltd. in 1994)". There is no particular limitation on the liquid crystal display device to which the present invention can be applied, and for example, it can be applied to various types of liquid crystal display devices described in the above-mentioned "Next Generation Liquid Crystal Display Technology".

[0344] The organic electroluminescent display device can have a light source composed of white organic electroluminescent elements. As the white organic electroluminescent element, it is preferably a series structure. The series structure of the organic electroluminescent element is recorded in Japanese Patent Publication No. 2003-045676, supervised by Akiyoshi Mikami, "The Forefront of Organic EL Technology Development-High Brightness, High Precision, Long Life, Proprietary Technology Collection", TECHNICAL INFORMATION INSTITUTE CO., LTD, 326-328 pages, 2008, etc. The spectrum of white light emitted by the organic EL element preferably has a stronger maximum luminous peak in the blue region (430nm-485nm), the green region (530nm-580nm) and the yellow region (580nm-620nm). More preferably, in addition to these luminous peaks, it has a maximum luminous peak in the red region (650nm-700nm).

[0345] Furthermore, the organic electroluminescent display device may have a lens on the color filter. As the shape of the lens, various shapes derived from the optical system design can be adopted, for example, a convex shape, a concave shape, etc. For example, by adopting a concave shape (concave lens), it is easy to improve the light focusing property. Furthermore, the lens may be in direct contact with the color filter, or other layers such as a sealing layer or a flattening layer may be provided between the lens and the color filter. Furthermore, the lens may also be configured and used in the manner described in International Publication No. 2018 / 135189.

[0346] Example

[0347] The present invention is specifically described by enumerating examples below. The materials, usage amounts, ratios, processing contents, processing sequences, etc. shown in the following examples can be appropriately changed without departing from the purpose of the present invention. Therefore, the scope of the present invention is not limited to the specific examples shown below.

[0348] <Manufacturing of Colorant Solution>

[0349] The materials listed in the following table were uniformly stirred and mixed, and then dispersed for 5 hours using zirconia beads with a diameter of 1 mm using an Eiger Motor Mill ("Mini Model M-250MKII" manufactured by Eiger Japan). Thereafter, the mixture was filtered using a filter with a pore size of 5 μm to prepare a colorant solution.

[0350] [Table 1]

[0351]

[0352] [Table 2]

[0353]

[0354] The details of the materials represented by the abbreviations described in the above table are as follows.

[0355] (Green colorant)

[0356] PG7: CI Pigment Green 7

[0357] PG36: CI Pigment Green 36

[0358] PG58: CI Pigment Green 58

[0359] (Yellow colorant)

[0360] PY139: CI Pigment Yellow 139

[0361] PY150: CI Pigment Yellow 150

[0362] PY185: CI Pigment Yellow 185

[0363] (Red colorant)

[0364] PR177: CI Pigment Red 177

[0365] PR264: CI Pigment Red 264

[0366] PR269: CI Pigment Red 269

[0367] PR254: CI Pigment Red 254

[0368] (Purple colorant)

[0369] PV19: CI Pigment Violet 19

[0370] (Dispersant)

[0371] Dispersant 1: Disperbyk-2001 (manufactured by BYK Co., LTD., solid content concentration 46 mass %)

[0372] Dispersant 2: A resin solution having a solid content concentration of 20% prepared by the following method

[0373] 90.0 parts by mass of cyclohexanone was added to a reaction vessel equipped with a stirrer, a thermometer, a dropping device, a reflux cooler, and a gas introduction tube, and heated to 60°C while injecting nitrogen into the vessel. A mixture of 20.0 parts by mass of methacrylic acid, 10.0 parts by mass of methyl methacrylate, 55.0 parts by mass of n-butyl methacrylate, 15 parts by mass of benzyl methacrylate, and 2.5 parts by mass of 2,2'-azobisisobutyronitrile was added dropwise at the same temperature for 2 hours to carry out a polymerization reaction. After the addition was completed, it was further reacted at 60°C for 1 hour, and a solution obtained by dissolving 0.5 parts by mass of 2,2'-azobisisobutyronitrile in 10.0 parts by mass of propylene glycol monomethyl ether acetate (PGMEA) was added, and then stirring was continued at the same temperature for 3 hours to obtain a copolymer. After cooling to room temperature, it was diluted with cyclohexanone to obtain a resin solution with a solid content concentration of 20%. The weight average molecular weight of the resin is 30,000.

[0374] Dispersant 3: Solsperse 20000 (manufactured by Lubrizol Japan Limited.)

[0375] (Pigment derivatives)

[0376] Pigment derivative 1: Compound having the following structure

[0377] [Chemical formula 14]

[0378]

[0379] 〔Solvent〕

[0380] Solvent 1: Propylene glycol monomethyl ether acetate (PGMEA)

[0381] Solvent 2: Cyclohexanone

[0382] <Manufacturing of Green Pixel Composition and Red Pixel Composition>

[0383] The materials shown in the following table were mixed and stirred, and then filtered using a nylon filter with a pore size of 0.45 μm (manufactured by NIHON PALL LTD.) to prepare green pixel compositions and red pixel compositions. The values ​​described in the column of mass parts of resin are values ​​converted into solid content.

[0384] [Table 3]

[0385]

[0386] [Table 4]

[0387]

[0388] In the above table, the details of the materials described by abbreviations are as follows.

[0389] (Colorant Solution)

[0390] P-G1 to P-G8, P-Gc1, P-R1 to P-R9, P-Rc1: Colorant solution P-G1 to P-G8, P-Gc1, P-R1 to P-R9, P-Rc1

[0391] (Photopolymerization Initiator)

[0392] Initiator 1: Compound with the following structure

[0393] [Chemical formula 15]

[0394]

[0395] Initiator 4: Compound having the following structure

[0396] [Chemical formula 16]

[0397]

[0398] 〔Resin〕

[0399] Resin 1: A resin synthesized by the following method.

[0400] A separable four-necked flask equipped with a thermometer, a cooling tube, a nitrogen inlet tube, a dropping tube, and a stirring device was charged with 70.0 parts by mass of cyclohexanone, and the temperature was raised to 80° C. After the flask was replaced with nitrogen, a mixture of 13.3 parts by mass of n-butyl methacrylate, 4.6 parts by mass of 2-hydroxyethyl methacrylate, 4.3 parts by mass of methacrylic acid, 7.4 parts by mass of p-cumylphenol ethylene oxide-modified acrylate (ARONIXM110 manufactured by TOAGOSEI CO., LTD.), and 0.4 parts by mass of 2,2'-azobisisobutyronitrile was added dropwise through the dropping tube over 2 hours. After the addition was completed, the reaction was continued for another 3 hours to obtain a 30% by mass solution of Resin 1 (Mw=26000).

[0401] Resin 2: A resin synthesized by the following method.

[0402] PGMEA 90.0 parts by mass was added to a reaction vessel equipped with a stirrer, a thermometer, a dropping device, a reflux cooler, and a gas introduction tube, and heated to 60°C while injecting nitrogen into the container. A mixture of 10.0 parts by mass of methacrylic acid, 45.0 parts by mass of methyl methacrylate, 45.0 parts by mass of n-butyl methacrylate, and 2,2'-azobisisobutyronitrile 2.5 parts was added dropwise at the same temperature for 2 hours to carry out a polymerization reaction. After the addition was completed, it was further reacted at 60°C for 1 hour, and a solution obtained by dissolving 0.5 parts by mass of 2,2'-azobisisobutyronitrile in 10.0 parts of PGMEA was added, and then the copolymer was obtained by stirring for 3 hours at the same temperature. After cooling to room temperature, a solution of resin 2 containing an alkali-soluble functional group having a non-volatile component of 20% by mass was obtained by diluting with PGMEA. The weight average molecular weight of resin 2 is 27,000.

[0403] Resin 3: Resin having the following structure (resin having a repeating unit containing a blocked isocyanate group. The numerical value indicated on the main chain is a mass ratio.)

[0404] [Chemical formula 17]

[0405]

[0406] (Polymerizable compound)

[0407] Monomer 1: ARONIX M-402 (manufactured by TOAGOSEI CO., LTD., a mixture of dipentaerythritol hexaacrylate and dipentaerythritol pentaacrylate)

[0408] Monomer 2: Compound of the following structure (a+b+c=3)

[0409] [Chemical formula 18]

[0410]

[0411] 〔Solvent〕

[0412] Solvent 1: Propylene glycol monomethyl ether acetate (PGMEA)

[0413] Solvent 3: Propylene glycol monomethyl ether (PGME)

[0414] <Manufacturing of Color Filter>

[0415] (Example 1)

[0416] On an 8-inch (203.2 mm) glass wafer with an undercoat layer, the green pixel composition R-G1 was applied using a spin coater so that the final film thickness after drying was 2.0 μm, and dried on a hot plate at 100°C for 2 minutes. Then, an ultra-high pressure mercury lamp was used to expose the film at an illumination of 20 mW / cm2 through a mask having a 5.0 μm square pattern. 2 , exposure is 1J / cm 2 The exposure was performed under the conditions of . Then, a 0.3 mass % aqueous solution of tetramethylammonium hydroxide (TMAH) was used for spin immersion development at 23°C for 60 seconds. After that, it was rinsed by spin spraying and then washed with pure water. Then, a green coloring pattern (green pixels) was formed by heating at 200°C for 5 minutes using a hot plate.

[0417] Next, the red pixel composition R-R1 was applied to the glass wafer with the green pixel formed thereon using a spin coater so that the final film thickness after drying was 2.0 μm, and dried on a hot plate at 100°C for 2 minutes. Thereafter, an ultra-high pressure mercury lamp was used to expose the red pixel composition at an illumination of 20 mW / cm2 through a mask having a 5.0 μm square pattern. 2 , exposure is 1J / cm 2 The exposure was performed under the conditions of . Then, a 0.3 mass % aqueous solution of tetramethylammonium hydroxide (TMAH) was used to perform spin immersion development at 23°C for 60 seconds. After that, it was rinsed by spin spraying and then washed with pure water. Then, by heating at 200°C for 5 minutes using a hot plate, a red coloring pattern (red pixel) was formed in the missing part of the green pixel, and the color filter of Example 1 was manufactured.

[0418] (Examples 2 to 77, 79 to 83, Comparative Examples 1 and 2)

[0419] A color filter was produced in the same manner as in Example 1 except that the types of the green pixel composition and the red pixel composition were changed to the types described in the following table, respectively.

[0420] (Example 78)

[0421] On an 8-inch (203.2 mm) glass wafer with an undercoat layer, the green pixel composition R-G13 was applied using a spin coater so that the final film thickness after drying was 2.0 μm, and dried on a hot plate at 100°C for 2 minutes. Then, an ultra-high pressure mercury lamp was used to expose the film at an illumination of 20 mW / cm2 through a mask having a 5.0 μm square pattern. 2 , exposure is 1J / cm 2The film was exposed under the conditions of . Then, a 0.3 mass % aqueous solution of tetramethylammonium hydroxide (TMAH) was used for spin immersion development at 23°C for 60 seconds. After that, it was rinsed by spin spray and then washed with pure water. Then, an ultraviolet photoresist curing device (UMA-802-HC-552; manufactured by Ushio Inc.) was used at 3000 mJ / cm 2 Exposure is performed at an exposure amount of to form a green colored pattern (green pixels).

[0422] Next, the red pixel composition R-R14 was applied to the glass wafer with the green pixel formed thereon using a spin coater so that the final film thickness after drying was 2.0 μm, and dried on a hot plate at 100°C for 2 minutes. Thereafter, an ultra-high pressure mercury lamp was used to expose the red pixel composition at an illumination of 20 mW / cm2 through a mask having a 5.0 μm square pattern. 2 , exposure is 1J / cm 2 The film was exposed under the conditions of . Then, a 0.3 mass % aqueous solution of tetramethylammonium hydroxide (TMAH) was used for spin immersion development at 23°C for 60 seconds. After that, it was rinsed by spin spray and then washed with pure water. Then, an ultraviolet photoresist curing device (UMA-802-HC-552; manufactured by Ushio Inc.) was used at 3000 mJ / cm 2 The film was exposed to an exposure amount of , a red colored pattern (red pixel) was formed in the missing portion of the green pixel, and the color filter of Example 78 was manufactured.

[0423] (Examples 84 and 85)

[0424] On an 8-inch (203.2 mm) glass wafer with an undercoat layer, the green pixel composition R-G1 was applied using a spin coater so that the final film thickness after drying was 2.0 μm, and dried on a hot plate at 100°C for 2 minutes. Then, an ultra-high pressure mercury lamp was used to expose the film at an illumination of 20 mW / cm2 through a mask having a 5.0 μm square pattern. 2 , exposure is 1J / cm 2 The exposure was performed under the conditions of . Then, a 0.3 mass % aqueous solution of tetramethylammonium hydroxide (TMAH) was used for spin immersion development at 23°C for 60 seconds. After that, it was rinsed by spin spraying and then washed with pure water. Then, a green coloring pattern (green pixels) was formed by heating at 100°C for 20 minutes using a hot plate.

[0425] Next, the red pixel composition R-R1 was applied to the glass wafer with the green pixel formed thereon using a spin coater so that the final film thickness after drying was 2.0 μm, and dried on a hot plate at 100°C for 2 minutes. Thereafter, an ultra-high pressure mercury lamp was used to expose the red pixel composition at an illumination of 20 mW / cm2 through a mask having a 5.0 μm square pattern. 2 , exposure is 1J / cm 2 The exposure was performed under the conditions of . Then, a 0.3 mass % aqueous solution of tetramethylammonium hydroxide (TMAH) was used to perform spin immersion development at 23°C for 60 seconds. Thereafter, it was rinsed by spin spraying and then washed with pure water. Next, by heating at 100°C for 20 minutes using a hot plate, a red coloring pattern (red pixel) was formed in the missing portion of the green pixel, and the color filter of Example 79 was manufactured.

[0426] (Example 86)

[0427] On an 8-inch (203.2 mm) glass wafer with an undercoat layer, the green pixel composition R-G1 was applied using a spin coater so that the final film thickness after drying was 2.0 μm, and dried on a hot plate at 100°C for 2 minutes. Then, an ultra-high pressure mercury lamp was used to expose the film at an illumination of 20 mW / cm2 through a mask having a 5.0 μm square pattern. 2 , exposure is 1J / cm 2 The exposure was performed under the conditions of . Then, a 0.3 mass % aqueous solution of tetramethylammonium hydroxide (TMAH) was used for spin immersion development at 23°C for 60 seconds. After that, it was rinsed by spin spray and then washed with pure water. Next, an i-ray stepper exposure device FPA-3000i5+ (manufactured by Canon Inc.) was used at 1500mJ / cm 2 Exposure is performed at an exposure amount of to form a green colored pattern (green pixels).

[0428] Next, the red pixel composition R-R1 was applied to the glass wafer with the green pixel formed thereon using a spin coater so that the final film thickness after drying was 2.0 μm, and dried on a hot plate at 100°C for 2 minutes. Thereafter, an ultra-high pressure mercury lamp was used to expose the red pixel composition at an illumination of 20 mW / cm2 through a mask having a 5.0 μm square pattern. 2 , exposure is 1J / cm 2 The exposure was performed under the conditions of . Then, a 0.3 mass % aqueous solution of tetramethylammonium hydroxide (TMAH) was used for spin immersion development at 23°C for 60 seconds. After that, it was rinsed by spin spray and then washed with pure water. Next, an i-ray stepper exposure device FPA-3000i5+ (manufactured by Canon Inc.) was used at 1500mJ / cm2 The photosensitive resin was exposed to an exposure amount of , and a red colored pattern (red pixel) was formed in the missing portion of the green pixel, thereby manufacturing the color filter of Example 80.

[0429] <Evaluation>

[0430] (Color separation 1)

[0431] The absorbance of the green pixel and the red pixel of the obtained color filter in the wavelength range of 300 to 800 nm was measured using an ultraviolet-visible near-infrared spectrophotometer UV3600 (manufactured by SHIMADZU CORPORATION). The difference between the wavelength λg1 of the light on the short wavelength side with a transmittance of 5% for the green pixel and the wavelength λr1 of the light on the long wavelength side with a transmittance of 5% for the red pixel in the wavelength range of 400 to 700 nm (ΔT1 = λr1-λg1) was calculated and evaluated according to the following criteria. In the following evaluation criteria, if it is S, A, or B, it is practical.

[0432] S: ΔT1 is 112 nm or more and 115 nm or less

[0433] A: ΔT1 is greater than 105 nm and less than 112 nm

[0434] B: ΔT1 is greater than 98 nm and less than 105 nm

[0435] C: ΔT1 is greater than 91 nm and less than 98 nm

[0436] D: ΔT1 is less than 91nm or greater than 115nm

[0437] (Color separation 2)

[0438] The absorbance of the green pixel and the red pixel of the obtained color filter in the wavelength range of 300 to 800 nm was measured using an ultraviolet-visible near-infrared spectrophotometer UV3600 (manufactured by SHIMADZU CORPORATION). The difference (ΔT2 = λr2-λg2) between the wavelength of the light on the long wavelength side with a transmittance of 30% for the green pixel and the wavelength of the light on the long wavelength side with a transmittance of 30% for the red pixel in the wavelength range of 400 to 700 nm was obtained and evaluated according to the following criteria. In the following evaluation criteria, if it is S, A, or B, it is practical.

[0439] S: ΔT2 is 30 nm or more and 33 nm or less

[0440] A: ΔT2 is greater than 20 nm and less than 30 nm

[0441] B: ΔT2 is greater than 10 nm and less than 20 nm

[0442] C: ΔT2 is 0 nm or more and less than 10 nm

[0443] D: ΔT2 is less than 0nm or greater than 33nm

[0444] <Color shift>

[0445] The transmittance (spectrum 1) of the green pixel of the obtained color filter in the wavelength range of 400 to 700 nm was measured using a microscope system (LVmicro V, manufactured by LambdaVision Inc.).

[0446] Next, after the color filter was stored in a high temperature chamber set at 100° C. for 1000 hours, the transmittance (spectrum 2) of the green pixel in the wavelength range of 400 to 700 nm was measured using a microscope system (LVmicro V, manufactured by Lambda Vision Inc.).

[0447] The maximum value of the change in transmittance was obtained using spectra 1 and spectroscopy 2 of the green pixel, and the transmittance change was evaluated according to the following criteria.

[0448] In addition, the transmittance of each sample was measured 5 times, and the average of the 3 results excluding the maximum and minimum values ​​was used. In addition, the maximum value of the change in transmittance refers to the change in the wavelength at which the change in the transmittance of the green pixel before and after heating in the wavelength range of 400 to 700 nm is the largest.

[0449] S: The maximum value of the change in transmittance is less than 0.2%.

[0450] A: The maximum value of the change in transmittance is 0.2% or more and less than 0.6%.

[0451] B: The maximum value of the change in transmittance is 0.6% or more and less than 1.0%.

[0452] C: The maximum value of the change in transmittance is 1.0% or more and less than 1.4%.

[0453] D: The maximum value of the change in transmittance is 1.4% or more.

[0454] [Table 5]

[0455]

[0456] [Table 6]

[0457]

[0458] As shown in the above table, in the color filters of Examples, color mixing due to color shift was suppressed.

[0459] (Example 1001)

[0460] The green pixel composition was applied to the silicon wafer by spin coating so that the film thickness after film formation was 1.0 μm. Then, it was heated at 100° C. for 2 minutes using a hot plate. Then, an i-ray stepper exposure apparatus FPA-3000i5+ (manufactured by Canon Inc.) was used at 1000 mJ / cm 2 The exposure amount was exposed through a mask with a dot pattern of 2 μm square. Then, a 0.3% by mass aqueous solution of tetramethylammonium hydroxide (TMAH) was used to perform spin immersion development at 23°C for 60 seconds. After that, it was rinsed by rotary spraying and then washed with pure water. Then, a green coloring pattern (green pixel) was formed by heating at 200°C for 5 minutes using a hot plate. Similarly, a red pixel composition and a blue pixel composition were patterned in sequence to form a red coloring pattern (red pixel) and a blue coloring pattern (blue pixel), respectively, to manufacture a color filter. As a green pixel composition, a green pixel composition R-G1 was used. As a red pixel composition, a red pixel composition R-R1 was used. The blue pixel composition will be described later.

[0461] The obtained color filter is assembled into an organic electroluminescent display device according to a known method. The organic electroluminescent display device has a suitable image recognition capability.

[0462] [Composition for blue pixels]

[0463] A mixture having the following composition was stirred and mixed to be uniform, and then filtered through a 1.0 μm filter to produce a blue pixel composition.

[0464] Pigment dispersion DB-1... 10.4 parts by mass

[0465] Pigment dispersion DV-1...6.1 parts by mass

[0466] Resin solution 11...24.2 parts by mass

[0467] Polymerizable compound (ARONIX M-402, manufactured by TOAGOSEI CO., LTD.) ... 0.7 parts by mass

[0468] Photopolymerization initiator (Irgacure OXE02, manufactured by BASF) ... 0.3 parts by mass

[0469] PGMEA...44.2 parts by mass

[0470] Pigment dispersion DB-1 used was one prepared by the following method.

[0471] 11.0 parts by mass of CI Pigment Blue 15:6, 21.5 parts by mass of resin solution 11, 1 part by mass of a dispersant (EFKA4300 manufactured by BASF) and 66.5 parts by mass of PGMEA were mixed, and then dispersed for 5 hours using zirconium oxide beads having a diameter of 1 mm using an Eiger Mill ("Mini Model M-250MKII" manufactured by Eiger Japan), and then filtered using a filter having a pore size of 5 μm to prepare a pigment dispersion DB-1.

[0472] Pigment dispersion DV-1 used was one prepared by the following method.

[0473] 11.0 parts by mass of CI Pigment Violet 23, 21.5 parts by mass of Resin Solution 11, 1 part by mass of a dispersant (EFKA4300 manufactured by BASF) and 66.5 parts by mass of PGMEA were mixed, and then dispersed for 5 hours using zirconia beads having a diameter of 1 mm using an Eiger Mill ("Mini Model M-250MKII" manufactured by Eiger Japan), and then filtered using a filter having a pore size of 5 μm to prepare a pigment dispersion DV-1.

[0474] The resin solution 11 used was one prepared by the following method.

[0475] 207 parts by mass of PGMEA were placed in a reaction vessel equipped with a thermometer, a cooling tube, a nitrogen inlet tube, a dropping tube and a stirring device in a separable four-necked flask, and the temperature was raised to 80° C. After the reaction vessel was replaced with nitrogen, a mixture of 20 parts by mass of methacrylic acid, 20 parts by mass of p-cumylphenol ethylene oxide-modified acrylate (ARONIX M110 manufactured by TOAGOSEIC0., LTD.), 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 through the dropping tube over 2 hours. After the addition was completed, the reaction was continued for 3 hours. Then, the nitrogen gas was stopped for the total amount of the obtained solution, and the mixture was stirred while injecting dry air for 1 hour. After cooling to room temperature, a mixture of 6.5 parts by mass of 2-methacryloyloxyethyl isocyanate (Karenz MOI manufactured by SHOWA DENKO KK), 0.08 parts by mass of dibutyltin laurate, and 26 parts by mass of cyclohexanone was added dropwise at 70° C. for 3 hours. After the addition was completed, the reaction was continued for another hour to obtain a resin (Mw=18000). After cooling to room temperature, the solid content concentration was adjusted to 20% by mass by dilution with PGMEA to prepare a resin solution 11.

[0476] Explanation of symbols

[0477] 1-green pixel, 2-red pixel, 5-next door.

Claims

1. A color filter having green pixels and red pixels, The green pixel contains color index pigment green 7 and color index pigment yellow 150, The green pixel contains 50 to 200 parts by mass of color index pigment yellow 150 relative to 100 parts by mass of color index pigment green 7. The content of color index pigment green 7 in the green colorant contained in the green pixel is 99.5% by mass or more, The content of color index pigment yellow 150 in the yellow colorant contained in the green pixel is 99.5% by mass or more, The red pixel includes one or more red colorants selected from the group consisting of Color Index Pigment Red 177, Color Index Pigment Red 264, and Color Index Pigment Red 269, and a yellow colorant other than Color Index Pigment Yellow 150. The red pixel contains 5 to 100 parts by mass of the yellow colorant other than Color Index Pigment Yellow 150, relative to 100 parts by mass of one or more red colorants selected from Color Index Pigment Red 177, Color Index Pigment Red 264, and Color Index Pigment Red 269. The yellow colorant other than color index pigment yellow 150 contained in the red pixel is at least one selected from color index pigment yellow 139 and color index pigment yellow 185.

2. The color filter according to claim 1, wherein The side surface of the green pixel is adjacent to the side surface of the red pixel.

3. The color filter according to claim 1 or 2, wherein: In the light having a wavelength range of 400 nm to 700 nm, the difference between the wavelength of the light on the short wavelength side showing a transmittance of 5% for the green pixel and the wavelength of the light on the long wavelength side showing a transmittance of 5% for the red pixel is 98 nm to 115 nm.

4. The color filter according to claim 1 or 2, wherein: In the light having a wavelength range of 400 nm to 700 nm, the difference between the wavelength of the light having a long wavelength side at which the transmittance of the green pixel is 30% and the wavelength of the light having a long wavelength side at which the transmittance of the red pixel is 30% is 10 nm to 33 nm. The color filter according to claim 1 or 2, further comprising a blue pixel.

6. A method for manufacturing a color filter, which is the method for manufacturing a color filter according to any one of claims 1 to 5, comprising: A step of forming a green pixel using a green pixel composition comprising a color index pigment green 7 and a color index pigment yellow 150; and A step of forming a red pixel using a red pixel composition, the red pixel composition comprising one or more red colorants selected from the group consisting of Color Index Pigment Red 177, Color Index Pigment Red 264, and Color Index Pigment Red 269, and a yellow colorant other than Color Index Pigment Yellow 150.

7. The method for manufacturing a color filter according to claim 6, wherein: In the step of forming a green pixel, the green pixel is formed by photolithography using the green pixel composition. In the step of forming the red pixel, the red pixel is formed by photolithography using the red pixel composition.

8. The method for manufacturing a color filter according to claim 6, wherein: At least one selected from the green pixel composition and the red pixel composition contains an alkali-soluble resin.

9. The method for manufacturing a color filter according to claim 6, wherein: At least one selected from the green pixel composition and the red pixel composition includes a resin having a repeating unit containing a blocked isocyanate group.

10. The method for manufacturing a color filter according to claim 6, wherein: The step of forming the green pixel and the step of forming the red pixel are each performed at a temperature of 150° C. or less. 11 . A solid-state imaging element comprising the color filter according to claim 1 . 12 . A display device comprising the color filter according to claim 1 .

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