Organic EL display device and method for manufacturing same

Abstract

Provided are: an organic EL display device which is provided with an optical sensor, is capable of suppressing noise on the optical sensor, and is capable of achieving high resolution; and a method for manufacturing the organic EL display device. An organic EL display device has, on a substrate, a near-infrared light receiving unit, a lower electrode, a light emitting layer, a transparent electrode, and a color filter in this order, the color filter having a patterned colored layer and a visible light shielding layer provided on the near-infrared light receiving unit, and having a near-infrared light shielding layer on the colored layer, the near-infrared light shielding layer is located between the coloring layer and the transparent electrode or is integrated with the coloring layer.

Description

Technical Field

[0001] This disclosure relates to organic EL display devices and methods for manufacturing the same. Background Technology

[0002] In recent years, to address the demand for further thinning / lightweighting and curved displays in electronic devices such as mobile phones and portable information terminals—demands that are difficult to achieve in current mainstream LCD devices—the development and mass production of display devices using organic EL (organic electroluminescent) as self-emissive elements are being promoted. Among these, to effectively utilize the thin / lightweight characteristics, applications are expected in high-resolution, small displays around 0.5 inches (hereinafter referred to as microdisplays) such as head-mounted displays and electronic viewfinders.

[0003] On the other hand, there has recently been an increasing demand for display devices that utilize automated devices to extract specific biometric and behavioral information from individuals for authentication purposes, primarily in fields such as finance, healthcare, and mobile devices. Furthermore, in head-mounted displays, eye-tracking functionality is required to improve VR-induced motion sickness caused by defocusing and to further enhance immersion.

[0004] Patent Document 1 discloses an organic light-emitting diode (OLED) panel assembled with a near-infrared (NIR) organic light sensor. The OLED panel includes a substrate, an OLED stack disposed on the substrate and emitting visible light, and an NIR light sensor stack disposed between the substrate and the OLED stack and including an NIR light-emitting part that emits NIR light and an NIR light-receiving part that receives NIR light.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2019-033071 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] In the OLED panel of Patent Document 1, as described later, visible light is sometimes incident on the NIR organic light-receiving unit. Additionally, light emitted from the NIR organic light-emitting unit is sometimes emitted through the pixel unit. This light becomes noise, thus degrading the performance of the infrared sensor.

[0010] Furthermore, from the perspective of achieving higher resolution, there is a need for further miniaturization of pixel size. From the viewpoint of facilitating the formation of finer pixels, pixel formation using color filters is being investigated.

[0011] In view of the above issues, the purpose of this disclosure is to provide an organic EL display device and a method for manufacturing the same, which has an optical sensor, can suppress noise to the optical sensor, and can achieve high resolution.

[0012] Methods for solving problems

[0013] The organic EL display device disclosed herein

[0014] The substrate sequentially comprises a near-infrared light receiver, a lower electrode, a light-emitting layer, a transparent electrode, and a color filter.

[0015] The color filter has a patterned coloring layer and a visible light blocking layer disposed on the near-infrared light receiving part.

[0016] The coloring layer has a near-infrared light-shielding layer, which is located between the coloring layer and the transparent electrode, or is integrated with the coloring layer.

[0017] In one embodiment of the aforementioned organic EL display device

[0018] A near-infrared emitting portion is also provided between the substrate and the lower electrode.

[0019] The color filter has a visible light shielding layer on the near-infrared emitting part.

[0020] In one embodiment of the aforementioned organic EL display device, the near-infrared light-shielding layer is present on the coloring layer.

[0021] In one embodiment of the aforementioned organic EL display device, the thickness of the visible light shielding layer is greater than the combined thickness of the coloring layer and the near-infrared light shielding layer.

[0022] In one embodiment of the aforementioned organic EL display device, the maximum light transmittance of the visible light shielding layer is less than 5% in the wavelength range of 400–620 nm, the maximum light transmittance is less than 13% in the wavelength range of 620–730 nm, and the minimum light transmittance is more than 85% in the wavelength range of 830–1000 nm.

[0023] In one embodiment of the aforementioned organic EL display device, the near-infrared light-shielding layer has an average light transmittance of over 80% in the wavelength range of 450–600 nm, a maximum absorption wavelength in the wavelength range of 780–1000 nm, and a light transmittance of less than 10% in the maximum absorption wavelength range.

[0024] In one embodiment of the aforementioned organic EL display device, the visible light shielding layer is a cured product of a visible light shielding layer composition, wherein the visible light shielding layer composition contains an organic pigment (A), a binder resin (B), a photopolymerization initiator (C), and a photopolymerizable compound (D).

[0025] The organic pigment (A) comprises blue pigment, yellow pigment, and purple pigment.

[0026] The proportions of organic pigments are based on the organic pigment (A), with blue pigment at 32-45% by weight, yellow pigment at 30-40% by weight, and purple pigment at 20-30% by weight.

[0027] In one embodiment of the above-mentioned organic EL display device, the near-infrared light-shielding layer is a cured product of a near-infrared light-shielding layer composition, wherein the near-infrared light-shielding layer composition contains a near-infrared absorbing pigment (E) represented by the following general formula (1), a resin-type dispersant (F) with an amine value of 20 mg KOH / g to 200 mg KOH / g, and a binder resin (G) with a weight-average molecular weight of 5,000 to 40,000 and an acid value of 100 mg KOH / g to 130 mg KOH / g.

[0028] [Chemical Formula 1]

[0029]

[0030] X 1 ~X 10 Each of these groups independently represents a hydrogen atom, an alkyl group that may have substituents, an alkenyl group that may have substituents, an aryl group that may have substituents, an aralkyl group that may have substituents, an alkoxy group that may have substituents, an aryloxy group that may have substituents, an amino group, a substituted amino group, a sulfonyl group, and -SO2NR. 1 R 2 -COOR 1 -CONR 1 R 2 Nitro, cyano, or halogen atom, X 1 ~X 10 They can also bond together to form a ring.

[0031] R 1 and R 2 Each can independently represent a hydrogen atom or an alkyl group that may have substituents.

[0032] The method for manufacturing an organic EL display device disclosed herein is characterized in that,

[0033] The coloring layer, the visible light shielding layer, and the near-infrared light shielding layer are formed at temperatures below 120°C.

[0034] One method for manufacturing the aforementioned organic EL display device includes: preparing a laminated substrate having a near-infrared light receiver, a lower electrode, a light-emitting layer, and a transparent electrode on a substrate; and

[0035] A coating film of a coloring layer composition is formed on the laminated substrate.

[0036] The effects of the invention

[0037] According to this disclosure, an organic EL display device having an optical sensor, capable of suppressing noise to the optical sensor, and capable of high resolution, and a method thereof can be provided. Attached Figure Description

[0038] [ Figure 1 [Illustrated cross-sectional view] is a schematic cross-sectional view showing one aspect of this organic EL display device.

[0039] [ Figure 2 [Illustrated cross-sectional view] is a schematic cross-sectional view showing one aspect of this organic EL display device.

[0040] [ Figure 3 [Illustrated cross-sectional view] is a schematic cross-sectional view showing one aspect of this organic EL display device.

[0041] [ Figure 4 [Illustrated cross-sectional view] is a schematic cross-sectional view showing one aspect of this organic EL display device.

[0042] [ Figure 5 [Illustrated cross-sectional view] is a schematic cross-sectional view showing one aspect of this organic EL display device.

[0043] [ Figure 6 [This is a schematic front view showing one aspect of the organic EL display device.]

[0044] [ Figure 7 [This is a schematic front view showing one aspect of the organic EL display device.]

[0045] [ Figure 8 [This is a schematic front view showing one aspect of the organic EL display device.]

[0046] [ Figure 9 [ ] is the transmittance spectrum of the visible light shielding layer of Manufacturing Example 1.

[0047] [ Figure 10 [ ] is the transmittance spectrum of the near-infrared light-shielding layer in Example 2. Detailed Implementation

[0048] The following describes the organic EL display device and its manufacturing method.

[0049] For clarity, the following descriptions and figures are simplified as appropriate. For illustration purposes, the scales of the components in the figures may vary significantly. In each figure, the same symbols are used to label the same elements, and repeated explanations are omitted where necessary. It should be noted that in each figure, the +Z side is the display surface (front) of the organic EL display device.

[0050] Terms used in this specification that define shape, geometry, and their degree, such as “parallel,” “perpendicular,” “orthogonal,” and “identical,” should be interpreted as not strictly limited, but rather encompassing the range of degrees to which the same function can be expected.

[0051] In this disclosure, the "~" signifying a range of values ​​refers to the values ​​listed before and after it as the lower limit and upper limit.

[0052] In this disclosure, "(meth)acrylate" is a general term for acrylates and methacrylates, and "(meth)acryloyl" and the like are also applicable here.

[0053] Additionally, in this disclosure, "CI" refers to the color index (CI).

[0054] 1. Organic EL display device

[0055] Reference Figure 1 The configuration of the organic EL display device of the first embodiment will be described. Figure 1 The example shown is an organic EL display device 100 that sequentially includes a near-infrared light receiving unit 21, an organic EL layer 30, and a color filter 40 on a substrate 10. The color filter 40 has a patterned color layer 4 (4R, 4G, 4B), a visible light blocking layer 5 disposed on the near-infrared light receiving unit 21, and a near-infrared light blocking layer 6 disposed on the color layer 4. Additionally, although not shown, the organic EL layer 30 includes a lower electrode, a light-emitting layer, and a transparent electrode. Figure 1 In this example, the substrate 10 includes a wiring layer 50. The wiring layer 50 includes wiring that electrically connects electrodes formed on the substrate to the near-infrared light receiving portion 21 and the organic EL layer 30. Furthermore, the wiring layer 50, the visible light shielding layer 5, and the color filter 40 may also have a coating 20 for purposes such as layer planarization or insulation. Figure 1 In the example, the visible light shading layer 5 has a coating 20.

[0056] The organic EL display device of the first embodiment has a visible light shielding layer 5 on the near-infrared light receiving unit 21 and a near-infrared light shielding layer 6 on the coloring layer 4. Therefore, visible light 62 incident from the display surface side and near-infrared light 63 with a large incident angle are absorbed by each layer. As a result, light that is a cause of noise is suppressed from incident on the near-infrared light receiving unit 21, and near-infrared light 61 with a small incident angle can be effectively received.

[0057] In the organic EL display device of the first embodiment, the light sensor can be used as a transmissive light sensor, a reflective light sensor that utilizes an external light source, or the like.

[0058] Next, refer to Figure 2 The configuration of the organic EL display device according to the second embodiment will be described. Figure 2 The example shown is an organic EL display device 100, which has a near-infrared light receiving part 21 and a near-infrared light emitting part 22, an organic EL layer 30, and a color filter 40 on a substrate 10. The color filter 40 has a patterned color layer 4 (4R, 4G, 4B), a visible light blocking layer 5 disposed on the near-infrared light receiving part 21, and a near-infrared light blocking layer 6 disposed on the color layer 4.

[0059] The organic EL display device of the second embodiment has the same configuration as the first embodiment, and has a visible light shielding layer 5 on the near-infrared emitting unit 22 and a near-infrared light shielding layer 6 on the coloring layer 4. Therefore, among the near-infrared rays emitted from the near-infrared emitting unit 22, the near-infrared rays with large emission angles are absorbed by the near-infrared light shielding layer 6, and only the near-infrared rays with small emission angles 64 are emitted. As a result, the near-infrared light receiving unit 21 can effectively receive the reflected light from the sample.

[0060] In the organic EL display device of the second embodiment, the light sensor is mainly used as a reflective light sensor or the like.

[0061] Unless otherwise specified, the following description is common to the organic EL display device of the first and second embodiments.

[0062] Figure 3 and Figure 4 A modified example of the color filter 40 is shown. Figure 3 The organic EL display device 100 has a near-infrared light-shielding layer 6 between the transparent electrode and the coloring layer 4 in the organic EL layer 30. Additionally, Figure 4 The organic EL display device 100 has an integrated color layer 7 with near-infrared light-shielding properties, comprising a color layer 4 and a near-infrared light-shielding layer 6. Figure 3 and Figure 4 The organic EL display device shown also achieves the same effect as the organic EL display devices of the first and second embodiments described above.

[0063] Figure 5 Another variation of the color filter 40 is shown. Figure 5 The thickness of the visible light shielding layer 5 of the color filter 40 is greater than the combined thickness of the color layer 4 and the near-infrared shielding layer 6 (or the thickness of the color layer 7 in the case of a color layer 7 with near-infrared shielding properties). By adopting this configuration, the color layer (4, 7) or the near-infrared shielding layer 6 is not coated onto the visible light shielding layer 5 during manufacturing, thereby improving the stability of the quality of this organic EL display device. The thickness of the visible light shielding layer 5 relative to the combined thickness of the color layer 4 and the near-infrared shielding layer 6 is, for example, only 10 to 1000 nm thick, preferably 20 to 200 nm thick, and more preferably 25 to 150 nm thick.

[0064] Next, refer to Figures 6-8 The configuration of the visible light blocking layer 5 is explained. Figures 6-8 This is a front view of the organic EL display device 100 (viewed from +Z). For example... Figure 6 As shown, the visible light blocking layer 5 can also be disposed on at least a portion of the near-infrared light receiving part 21 and the near-infrared light emitting part 22, respectively. Alternatively, the visible light blocking layer 5 can also be as follows: Figure 7 The structure shown is lattice-like. Figure 7 The visible light blocking layer 5 also functions as a black matrix. Additionally, as... Figure 8 As shown, multiple visible light blocking layers 5 and other blocking layers 8 can also be combined to form a black matrix.

[0065] The organic EL display devices of the first and second embodiments may also have other layers or other configurations as needed. Hereinafter, the various configurations of this organic EL display device will be described in more detail.

[0066] [Near-infrared light receiver]

[0067] The near-infrared light receiver 21 is the part that converts near-infrared light into electrical signals. As an example, the near-infrared light receiver is a photodiode, preferably a photodiode that receives near-infrared light with a wavelength of 800–1500 nm. At least one near-infrared light receiver is required in the organic EL display device, but multiple receivers are preferred, and more preferably arranged in a grid pattern. By having multiple near-infrared light receivers, a mapped image of the object being measured (e.g., fingerprint, retina, face, etc.) can be obtained, which can be used for biometric authentication, etc.

[0068] [Near-infrared emitting part]

[0069] The near-infrared emitting part 22 is the part that emits near-infrared light. As an example, the near-infrared emitting part is a light-emitting diode, preferably a light-emitting diode that emits near-infrared light with a wavelength of 800 to 1500 nm. At least one near-infrared emitting part is required in the organic EL display device, but it is preferable to have multiple parts, and more preferably, they are arranged in a grid pattern.

[0070] [Color Filter]

[0071] In this disclosure, the color filter has a laminate of a patterned colored layer 4 and a near-infrared light-shielding layer 6, or a colored layer 7 having near-infrared light-shielding properties, and a visible light-shielding layer 5 disposed at the specified position. The color filter is disposed directly or via other layers on the organic EL layer 30.

[0072] <shading layer>

[0073] Coloring layer 4 should have at least red layer 4R, green layer 4G, and blue layer 4B, and may also have yellow layer, cyan layer, magenta layer, white (colorless) layer, etc.

[0074] There are no particular limitations on the pattern arrangement of each color layer; for example, stripe arrangement, Delta arrangement, mosaic arrangement, and honeycomb arrangement can be listed. It should be noted that at least a portion of the color filter contains a visible light blocking layer 5. Alternatively, a black matrix containing the visible light blocking layer 5 can be set between each color color layer.

[0075] From a high-precision perspective, the area of ​​each division in each coloring layer is preferably 1–50 μm. 2 More preferably 1–30 μm 2 Furthermore, from the viewpoint of color reproduction, the thickness of each coloring layer is preferably 0.1 to 5 μm, more preferably 0.2 to 4 μm.

[0076] From the viewpoint of creating an organic EL display device with high brightness, high resolution, and excellent color reproduction, each color layer preferably has the following spectral characteristics.

[0077] Red layer: The maximum transmittance of light in the wavelength range of 450nm to 560nm is less than 0.5%, the wavelength with 50% transmittance exists in the wavelength range of 593nm to 603nm, and the average transmittance of light in the wavelength range of 600nm to 700nm is more than 80% and less than 100%.

[0078] Green layer: The maximum transmittance of light in the wavelength range of 400nm to 470nm is less than 2%, the maximum transmittance of light in the wavelength range of 525 to 535nm is more than 67%, the 50% transmittance wavelength on the short wavelength side is 497 to 507nm, and the 50% transmittance wavelength on the long wavelength side is 554 to 581nm.

[0079] Blue layer: Maximum transmittance of light in the wavelength range of 500nm to 560nm is less than 20%.

[0080] Visible light blocking layer

[0081] The visible light blocking layer 5 is a layer that absorbs visible light and preferably transmits near-infrared light. The visible light blocking layer 5 preferably has the following spectral characteristics, for example.

[0082] • The maximum transmittance of light in the wavelength range of 400 to 620 nm is less than 5%.

[0083] • The maximum transmittance of light in the wavelength range of 620–730 nm is less than 13%.

[0084] • The minimum light transmittance in the wavelength range of 830 to 1000 nm is above 85%.

[0085] Near-infrared light shielding layer

[0086] Furthermore, the near-infrared light-shielding layer 6 is a layer that absorbs near-infrared light and preferably transmits visible light. The near-infrared light-shielding layer 6 preferably has, for example, the following spectral characteristics.

[0087] The average light transmittance in the wavelength range of 450–600 nm is over 80%.

[0088] • It has a maximum absorption wavelength in the wavelength range of 780 to 1000 nm, and the light transmittance at this maximum absorption wavelength is less than 10%.

[0089] <Materials of each layer>

[0090] Next, the materials of each layer constituting the color filter will be explained. When using this organic EL display device for, for example, a high-precision microdisplay with a pixel size of 1μm to 5μm, from the viewpoint of enabling further miniaturization, it is preferable that each layer is formed by photolithography.

[0091] Furthermore, when organic EL elements and color filters are fabricated on different substrates and bonded together, positional misalignment may occur, which is particularly problematic in microdisplays. Therefore, it is preferable to form the color filter directly on the organic EL element. When forming the color filter in this on-chip manner, due to the heat resistance of the light-emitting layer, etc., a fully cured layer needs to be formed by baking at 120°C or below.

[0092] The following describes the compositions used to form each layer that meet these conditions.

[0093] (1) Composition for visible light shielding layer

[0094] The composition for the visible light shielding layer contains organic pigment (A), binder resin (B), photopolymerization initiator (C), and photopolymerizable compound (D).

[0095] The organic pigment (A) comprises blue pigment, yellow pigment, and purple pigment.

[0096] Based on the organic pigment (A), the preferred proportions of the organic pigments are 32-45% by weight for blue pigment, 30-40% by weight for yellow pigment, and 20-30% by weight for purple pigment. It should be noted that the more preferred proportions of each pigment in organic pigment (A) are 33-38% by weight for blue pigment, 35-40% by weight for yellow pigment, and 25-30% by weight for purple pigment. By employing such a composition, a composition is obtained that satisfies the aforementioned spectroscopic characteristics and film-forming conditions.

[0097] (Organic Pigment (A))

[0098] Organic pigments (A) contain at least blue, yellow, and purple pigments, and may also contain pigments of other colors.

[0099] Specific examples of blue pigments include: CI Pigment Blue 1, 1:2, 9, 14, 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 17, 19, 25, 27, 28, 29, 33, 35, 36, 56, 56:1, 60, 61, 61:1, 62, 63, 66, 67, 68, 71, 72, 73, 74, 75, 76, 78, 79, etc.

[0100] Specific examples of yellow pigments include: CI Pigment Yellow (PY) 1, 1:1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 14, 16, 17, 24, 31, 32, 34, 35, 35:1, 36, 36:1, 37, 37:1, 40, 41, 42, 43, 48, 53, 55, 61, 62, 62:1, 63, 65, 73, 74, 75, 81, 83, 87, 93, 94, 95, 97, 100, 101, 104, 105, 108, 109, 110, 111, 116, 117, 119, 120, 126, 127, 127:1, 128, 129, 1 33, 134, 136, 138, 139, 142, 147, 148, 150, 151, 153, 154, 155, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 172, 173, 174, 175, 176, 180, 181, 182, 183, 184, 185, 188, 189, 190, 191, 191:1, 192, 193, 194, 195, 196, 197, 198, 199, 200, 202, 203, 204, 205, 206, 207, 208, etc.

[0101] Specific examples of purple pigments include: CI pigment purple (PV) 1, 1:1, 2, 2:2, 3, 3:1, 3:3, 5, 5:1, 14, 15, 16, 19, 23, 25, 27, 29, 31, 32, 37, 39, 42, 44, 47, 49, 50, etc.

[0102] In the organic pigment (A) used in the composition for visible light blocking layer, from the viewpoint of visible light blocking properties, the blue pigment is preferably CI Pigment Blue 15, 15:1, 15:2, 15:3, 15:4, or 15:6, more preferably CI Pigment Blue 15:3 or CI Pigment Blue 15:6. In the organic pigment (A), from the viewpoint of visible light blocking properties, the yellow pigment is preferably CI Pigment Yellow 83, 117, 129, 138, 139, 150, 154, 155, 180, or 185, more preferably CI Pigment Yellow 83, 138, 139, 150, or 185.

[0103] Furthermore, in the organic pigment (A), from the viewpoint of visible light shading, the purple pigment is preferably CI pigment purple 19 or 23, and more preferably CI pigment purple 23.

[0104] From the viewpoint of obtaining sufficient light-blocking properties, based on the non-volatile components in the composition for visible light blocking layer, the total concentration of organic pigment (A) in the composition for visible light blocking layer is preferably 10 to 90% by weight, more preferably 15 to 85% by weight, and even more preferably 20 to 80% by weight.

[0105] Organic pigment (A) is preferably used in a finely milled form. The primary particle size of organic pigment (A) is preferably 20–100 nm, more preferably 25–85 nm. It should be noted that the primary particle size of the pigment is determined by directly measuring the size of the primary particles based on TEM (transmission electron microscopy) images of the pigment. Specifically, the minor axis diameter and major axis diameter of the primary particles of the pigment are measured, and the average is taken as the particle size of that pigment particle. The particle sizes of 100 or more pigment particles are determined, and the average is taken as the average primary particle size.

[0106] (Adhesive resin (B))

[0107] The binder resin (B) contributes to the dispersion stability of the organic pigment (A) and inhibits the aggregation of the organic pigment (A) in the visible light shielding layer. In addition, by using the binder resin (B), the developability and shape stability in the photolithography process are excellent.

[0108] The binder resin (B) is preferably a thermoplastic resin. When the visible light shielding layer composition is used as an alkali-developable photoresist, an alkali-soluble resin having acidic groups is preferred. Furthermore, to further improve photosensitivity, the binder resin (B) may also be an active energy-curable resin having alkene-type unsaturated double bonds. Among these, an alkali-soluble active energy-curable resin is preferred.

[0109] Examples of thermoplastic resins include: acrylic resins, butyral resins, styrene-maleic acid copolymers, chlorinated polyethylene, chlorinated polypropylene, polyvinyl chloride, vinyl chloride-vinyl acetate copolymers, polyvinyl acetate, polyurethane resins, polyester resins, vinyl resins, alkyd resins, polystyrene resins, polyamide resins, rubber resins, cyclized rubber resins, cellulose resins, polyethylene (HDPE, LDPE), polybutadiene, and polyimide resins. Among these, acrylic resins are preferred.

[0110] Examples of acidic groups in the aforementioned alkali-soluble resins include carboxyl groups and sulfonyl groups. Specific examples of alkali-soluble resins include acrylic resins with acidic groups, α-olefin / maleic acid (anhydride) copolymers, styrene / styrene sulfonic acid copolymers, ethylene / (meth)acrylic acid copolymers, or isobutylene / maleic acid (anhydride) copolymers. Among these, acrylic resins with acidic groups or styrene / styrene sulfonic acid copolymers are preferred, and from the viewpoint of heat resistance and transparency, acrylic resins with acidic groups are more preferred.

[0111] As the above-mentioned alkali-soluble active energy ray curable resin, resins manufactured by the following methods (i) or (ii) can be listed.

[0112] Method (i): A carboxylic acid having an olefinic unsaturated double bond is subjected to an addition reaction with the side chain epoxy group of a copolymer obtained by copolymerizing a monomer having an epoxy group with other monomers, and the polycarboxylic acid (anhydride) is further reacted with the generated hydroxyl group to introduce an olefinic unsaturated double bond and a carboxyl group.

[0113] Examples of monomers having an epoxy group include glycidyl methacrylate, methyl glycidyl methacrylate, 2-glycidyl methacrylate, 3,4-epoxybutyl methacrylate, and 3,4-epoxycyclohexyl methacrylate. From the viewpoint of reactivity with a carboxylic acid having an olefinic unsaturated double bond in the next step, glycidyl methacrylate is preferred.

[0114] Examples of carboxylic acids with olefinic unsaturated double bonds include (meth)acrylic acid, crotonic acid, and vinylbenzoic acid.

[0115] The aforementioned polycarboxylic acids can also be acid anhydrides, such as tetrahydrophthalic anhydride, phthalic anhydride, hexahydrophthalic anhydride, succinic anhydride, maleic anhydride, trimellitic anhydride, pyromellitic dianhydride, etc.

[0116] Alternatively, as a variation of method (i), a compound having an olefinic unsaturated double bond and an epoxy group may be subjected to an addition reaction with the side chain carboxyl group of a copolymer obtained by copolymerizing a monomer having a carboxyl group with other monomers, and the polycarboxylic acid (anhydride) may be further reacted with the generated hydroxyl group to introduce an olefinic unsaturated double bond and a carboxyl group.

[0117] Method (ii): An olefinic unsaturated double bond is introduced by reacting an olefinic unsaturated monomer with an isocyanate group with the side chain hydroxyl groups of a copolymer obtained by copolymerizing a monomer with a hydroxyl group, a monomer with a carboxyl group, and other monomers as desired.

[0118] Examples of monomers containing hydroxyl groups include 2-hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, hydroxybutyl (meth)acrylate, glyceryl (meth)acrylate, and cyclohexanediol mono(meth)acrylate, among other hydroxyalkyl (meth)acrylate esters. Alternatively, polyether mono(meth)acrylates formed by addition polymerization of ethylene oxide, propylene oxide, and / or butane with the aforementioned hydroxyalkyl (meth)acrylates can be used; or polyester mono(meth)acrylates formed by addition polymerization of (poly)γ-valerolactone, (poly)ε-caprolactone, (poly)12-hydroxystearic acid with the aforementioned hydroxyalkyl (meth)acrylates can be used. From the viewpoint of suppressing the generation of foreign matter during coating film formation, 2-hydroxyethyl (meth)acrylate or glyceryl (meth)acrylate is preferred.

[0119] Monomers with carboxyl groups can be listed as those that are the same as the carboxylic acids with olefinic unsaturated double bonds mentioned above.

[0120] Monomers with isocyanate groups include 2-(meth)acryloyloxyethyl isocyanate and 1,1-bis[(meth)acryloyloxy]ethyl isocyanate.

[0121] From the viewpoint of dispersibility of the organic pigment (A), the weight-average molecular weight (Mw) of the binder resin (B) is preferably in the range of 10,000 to 100,000, more preferably 10,000 to 80,000. Furthermore, the number-average molecular weight (Mn) is preferably in the range of 5,000 to 50,000, and the Mw / Mn ratio is preferably 10 or less.

[0122] From the viewpoints of pigment dispersibility, developability, and curing film durability, the acid value of the binder resin (B) is preferably 20-300 mg KOH / g.

[0123] From the viewpoint of film-forming properties and the durability of the cured film, the proportion of binder resin (B) in the composition for visible light shielding layer is preferably 20 to 1000 parts by weight relative to 100 parts by weight of organic pigment (A).

[0124] (Photopolymerization initiator (C))

[0125] Photopolymerization initiators (C) can include, for example, 4-phenoxydichloroacetophenone, 4-tert-butyl-dichloroacetophenone, diethoxyacetophenone, p-dimethylaminoacetophenone, 1-(4-isopropylphenyl)-2-hydroxy-2-methylpropane-1-one, 1-hydroxycyclohexylphenyl ketone, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropane-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butane-1-one, 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholino)phenyl]-1-butanone, and other acetophenone compounds;

[0126] Benzoin compounds, such as benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzoin dimethyl ketal;

[0127] Benzophenone, benzoylbenzoic acid, methyl benzoylbenzoate, 4-phenylbenzophenone, hydroxybenzophenone, acrylated benzophenone, 4-benzoyl-4'-methyl diphenyl sulfide, 3,3',4,4'-tetra(tert-butylperoxycarbonyl)benzophenone and other benzophenone compounds;

[0128] Thioxanone, 2-chlorothioxanone, 2-methylthioxanone, isopropylthioxanone, 2,4-diisopropylthioxanone, 2,4-diethylthioxanone and other thioxanone compounds;

[0129] Triazine compounds, including 2,4,6-trichloro-triazine, 2-phenyl-4,6-bis(trichloromethyl)-triazine, 2-(p-methoxyphenyl)-4,6-bis(trichloromethyl)-triazine, 2-(p-tolyl)-4,6-bis(trichloromethyl)-triazine, 2-piperyl-4,6-bis(trichloromethyl)-triazine, 2,4-bis(trichloromethyl)-6-styryl-triazine, 2-(naphth-1-yl)-4,6-bis(trichloromethyl)-triazine, 2-(4-methoxy-naphth-1-yl)-4,6-bis(trichloromethyl)-triazine, 2,4-trichloromethyl-(piperyl)-6-triazine, and 2,4-trichloromethyl-(4'-methoxystyryl)-6-triazine;

[0130] Acetophenone, Benzophenone, 4,4'-bis(diethylamino)-benzophenone, 4-(methylphenylthio)-phenylphenyl ketone, Benzoyldimethyl ketal, 2-methyl-1-methylphenylthio-2-morpholinopropane-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butane-1-one, ethyl p-diethylaminobenzoate, Thioxanone, 2,5-diethylthioxanone, 2-chloroxanone, Isopropylthioxanone, 1-chloro-4-propoxy-thioxanone, 2-(o-chlorophenyl)-4,5-diphenylimidazolium dimer 2-(o-fluorophenyl)-4,5-diphenylimidazolium dimer, 2-(o-methoxyphenyl)-4,5-diphenylimidazolium dimer, 2-(p-methoxyphenyl)-4,5-diphenylimidazolium dimer, 2-(o-chlorophenyl)-4,5-di(o-methoxyphenyl)imidazolium dimer, 9-phenylacridine, 9-(p-toluyl)acridine, 1,7-bis(9,9'-acridine)heptane, N-phenylglycine, bis(η5-cyclopentadienyl)bis[2,6-difluoro-3-(1H-pyrrolo-1-yl)phenyl]titanium, 2-ethyl Anthraquinone, 1-chloroanthraquinone, 2-phenyl-4,6-bis(trichloromethyl)-triazine, 2-(4-methoxyphenyl)-4,6-bis(trichloromethyl)-triazine, 2-naphthyl-4,6-bis(trichloromethyl)-triazine, 2-(4-methoxynaphthyl)-4,6-bis(trichloromethyl)-triazine, 2-methyl-4,6-bis(trichloromethyl)-triazine, 1,2-octanedione; 1-[4-(phenylthio)phenyl-2-(O-benzoyl oxime)], O-(acetyl)-N-(1-phenyl-2-oxo-2- (4'-methoxy-naphthyl)ethylene)hydroxylamine and other oxime ester compounds; bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide and other phosphine compounds; 2,2'-bis(o-chlorophenyl)-4,5,4',5'-tetraphenyl-1,2'-diimidazole, 2,2'-bis(o-methoxyphenyl)-4,4',5,5'-tetraphenyldiimidazole, 2,2'-bis(o-chlorophenyl)-4,4',5,5'-tetraphenyldiimidazole and other imidazole compounds;

[0131] 2-Dimethylamino-2-methyl-1-phenylpropane-1-one, 2-diethylamino-2-methyl-1-phenylpropane-1-one, 2-methyl-2-morpholino-1-phenylpropane-1-one, 2-dimethylamino-2-methyl-1-(4-methylphenyl)propane-1-one, 2-dimethylamino-1-(4-ethylphenyl)-2-methylpropane-1-one, 2-dimethylamino-1-(4-isopropyl) 2-Dimethylamino-2-methylpropane-1-one, 1-(4-Butylphenyl)-2-dimethylamino-2-methylpropane-1-one, 2-Dimethylamino-1-(4-methoxyphenyl)-2-methylpropane-1-one, 2-Dimethylamino-2-methyl-1-(4-methylphenylthio)propane-1-one, 2-Methyl-1-(4-methylphenylthio)-2-morpholinopropane-1-one (IRGACURE) 907), 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butane-1-one (IRGACURE 369), 2-benzyl-2-dimethylamino-1-(4-dimethylaminophenyl)-butane-1-one, 2-dimethylamino-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholino)phenyl]-1-butanone (IRGACURE 379) and other amino ketone compounds;

[0132] Quinone compounds such as 9,10-phenanthrenequinone, camphorquinone, and ethylanthraquinone; borate compounds, carbazole compounds, and diocene compounds.

[0133] Among these, oxime ester compounds are more preferably included as photopolymerization initiators. Oxime ester compounds have very high sensitivity, thus enabling pattern formation with low exposure and excellent adhesion during the development process.

[0134] As an oxime ester-based photopolymerization initiator, the oxime ester-based photopolymerization initiator represented by the following general formulas (8) to (10) is preferred, the oxime ester-based photopolymerization initiator represented by the following general formulas (8) or (9) is more preferred, and the oxime ester-based photopolymerization initiator represented by general formula (8) is even more preferred.

[0135] • Oxime ester photopolymerization initiators represented by general formula (8)

[0136] [Chemical Formula 2]

[0137]

[0138] In equation (8), Z represents direct bonding or -C(=O)- base, and R 11 R represents an alkyl group having 1 to 20 carbon atoms that may have substituents. 12 R represents an alkyl group having 1 to 20 carbon atoms that may have substituents, or an aryl group that may have substituents. 13 ~R20 Each of the following can independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms that may have substituents, an aryl group, a nitro group that may have substituents, or an R group. 21 -C(=O)-base. R 21 This indicates an aryl group that can have substituents.

[0139] R 11 ~R 20 Alkyl groups with 1 to 20 carbon atoms include, for example, straight-chain alkyl groups such as methyl, ethyl, propyl, butyl, hexyl, octyl, and dodecyl.

[0140] As R 12 ~R 21 Aryl groups in phenyl groups can be categorized as phenyl, naphthyl, anthracene, etc.

[0141] It should be noted that Z direct bonding means that Z does not have atoms, and the two atoms connected to Z in general formula (8) are directly bonded.

[0142] The substituents that the alkyl and aryl groups may have indicate that substituents can replace the hydrogen atoms present in the alkyl or aryl group. Examples of such substituents include: halogen atoms such as fluorine, chlorine, bromine, and iodine; alkoxy groups such as methoxy, ethoxy, and tert-butoxy; aryloxy groups such as phenoxy and p-tolyloxy; alkoxycarbonyl groups such as methoxycarbonyl, butoxycarbonyl, and phenoxycarbonyl; acyloxy groups such as acetoxy, propionyloxy, and benzoyloxy; acyl groups such as acetyl, benzoyl, isobutyryl, acryloyl, methacryloyl, and metoxane; alkyl mercapto groups such as methyl mercapto and tert-butyl mercapto; aryl mercapto groups such as phenyl mercapto and p-tolyl mercapto; alkylamino groups such as methylamino and cyclohexylamino; and dimethylamino, diethylamino, and morpholine. Dialkylamino groups such as methyl, piperidinyl, etc.; arylamino groups such as phenylamino, p-tolylamino, etc.; alkyl groups such as methyl, ethyl, tert-butyl, dodecyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclooctadecyl, etc.; aryl groups such as phenyl, p-tolyl, xylyl, cumenel, naphthyl, anthracenel, phenanthrene, etc.; heterocyclic groups such as furanyl, thiophene, etc.; and hydroxyl, carboxyl, formyl, mercapto, sulfonyl, methanesulfonyl, p-toluenesulfonyl, amino, nitro, cyano, trifluoromethyl, trichloromethyl, trimethylsilyl, phosphinicoyl, phosphonoyl, trimethylammonium, dimethylsulfonyl, triphenylbenzoylmethylphosphono, etc.

[0143] In addition, there can be one or more of these substituents, and the hydrogen atoms of these substituents can be replaced by other substituents.

[0144] In the oxime ester photopolymerization initiators represented by general formula (8), preferably, Z is a directly bonded or -C(=O)- group, and R...11 R is an alkyl group having 1 to 20 carbon atoms that may have substituents. 12 R is an alkyl group having 1 to 20 carbon atoms that may have substituents, or an aryl group that may have substituents. 13 ~R 20 Each of the following groups is independently a hydrogen atom; an alkyl group having 1 to 20 carbon atoms that may have substituents; an aryl group, a nitro group, or an R group that may have substituents. 21 -CO- group. More preferably, R 14 ~R 16 and R 18 ~R 20 For hydrogen atoms, R 17 For hydrogen atoms, or R 21 -CO- group, R 21 It is an aryl group that can have substituents.

[0145] As an oxime ester-based photopolymerization initiator represented by general formula (8), the compound represented by the following chemical formula (8-1) or (8-2) is preferred.

[0146] [Chemical Formula 3]

[0147]

[0148] • Oxime ester photopolymerization initiators represented by general formula (9)

[0149] [Chemical Formula 4]

[0150]

[0151] In equation (9), W 1 and W 2 Each independently represents a carbonyl bond (-CO-) or a single bond, W 1 and W 2 At least one of them is a carbonyl bond (-CO-).

[0152] R a It is an alkyl group with 2 to 6 carbon atoms, R b It is an alkyl group with 4 to 10 carbon atoms, R c It is a group that contains at least a hydrocarbon ring or heterocycle, and may also contain at least one divalent linker selected from alkylene chains having 1 to 4 carbon atoms, thioether bonds (-S-), ether bonds (-O-), and carbonyl bonds (-CO-). b and R c They are all different substituents. R d and R e Each is an alkyl group having 1 to 6 carbon atoms.

[0153] R aAlkyl groups, for example, include straight-chain alkyl groups such as ethyl, propyl, butyl, and hexyl.

[0154] As R b Alkyl groups can include straight-chain alkyl groups such as butyl, hexyl, octyl, and dodecyl.

[0155] As R c The hydrocarbon rings in [the text] can include aliphatic hydrocarbon rings such as cyclohexyl, and aromatic hydrocarbon rings such as phenyl, naphthyl, and anthracene. Additionally, as R [the text abruptly ends here, likely due to an incomplete sentence or missing information]. c The heterocycles in the above-mentioned hydrocarbon rings can be listed as rings in which one or more carbon atoms are replaced by nitrogen, oxygen, or sulfur atoms.

[0156] Additionally, R d and R e Alkyl groups can be exemplified by straight-chain alkyl groups such as methyl, ethyl, propyl, butyl, and hexyl.

[0157] As an oxime ester-based photopolymerization initiator represented by general formula (9), the compound represented by the following chemical formula (9-1) is preferred.

[0158] [Chemical Formula 5]

[0159]

[0160] • Oxime ester photopolymerization initiators represented by general formula (10)

[0161] [Chemical Formula 6]

[0162]

[0163] In equation (10), R 31 and R 32 Each is independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms that may have substituents, or an aryl group that may have substituents, R 33 and R 34 Each is independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms that may have substituents, or an aryl group that may have substituents, R 35 It is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms that may have substituents, an aryl group that may have substituents, or R 36 -CO- group, R 36 It can be an alkyl group having 1 to 20 carbon atoms, an aryl group having substituents, or a heterocyclic group.

[0164] R 31 ~R 36 Alkyl groups having 1 to 20 carbon atoms can react with the above-mentioned R 11 ~R 20 The alkyl groups with 1 to 20 carbon atoms are the same.

[0165] R 31 ~R 36 The aryl group in R can react with the above-mentioned R 12 ~R 21 The aryl group is the same.

[0166] As R 36 Heterocyclic groups in the heterocyclic group include, for example: furan, thiophene, pyrrole, oxazole, thiazole, imidazole, pyrazole, pyran, pyranone, pyridine, pyridazine, pyrimidine, pyrazine, benzofuran, benzothiophene, indole, carbazole, coumarin, quinoline, phthalazine, quinoxaline, etc.

[0167] In addition, alkyl and aryl groups may have the same substituents as those in the above general formula (8).

[0168] Among the oxime ester-based photopolymerization initiators represented by general formula (10), R is preferred. 31 For aryl groups that can have substituents, R 32 R is an alkyl group having 1 to 20 carbon atoms that may have substituents. 33 and R 34 For hydrogen atoms, R 35 For hydrogen atoms, or R 36 -CO- group.

[0169] As an oxime ester-based photopolymerization initiator represented by general formula (10), the compound represented by the following chemical formula (10-1) is preferred.

[0170] [Chemical Formula 7]

[0171]

[0172] From the viewpoint of curability and developability, the proportion of photopolymerization initiator (C) in the composition for visible light shielding layer is preferably 5 to 200 parts by weight, more preferably 10 to 150 parts by weight, relative to 100 parts by weight of organic pigment (A).

[0173] (Photopolymerizable compound (D))

[0174] As photopolymerizable compounds (D), examples include monomers and oligomers that are cured by ultraviolet light or other methods to form transparent resins. Specific examples of photopolymerizable compounds (D) include: methyl methacrylate, ethyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, cyclohexyl methacrylate, β-carboxyethyl methacrylate, polyethylene glycol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, triethylene glycol di(meth)acrylate, tripropylene glycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, trimethylolpropane PO-modified tri(meth)acrylate, trimethylolpropane EO-modified tri(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, 1,6- Hexanediol diglycidyl ether di(meth)acrylate, bisphenol A diglycidyl ether di(meth)acrylate, neopentyl glycol diglycidyl ether di(meth)acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol penta(meth)acrylate, tricyclodecyl (meth)acrylate, ester acrylates, hydroxymethylated melamine (meth)acrylate, (meth)acrylate epoxy ester, carbamate acrylates and other various acrylates and methacrylates; (meth)acrylic acid, styrene, vinyl acetate, hydroxyethyl vinyl ether, ethylene glycol divinyl ether, pentaerythritol trivinyl ether, (meth)acrylamide, N-hydroxymethyl (meth)acrylamide, N-vinylformamide, acrylonitrile, etc.

[0175] In addition, as a photopolymerizable compound (D), the following can be used: esterifications of compounds formed by introducing (meth)acrylic acid into a portion of a polyol with dicarboxylic acid; esterifications of polycarboxylic acid with monohydroxy (meth)acrylate, etc. Specific examples include: monohydroxy oligoacrylates or monohydroxy oligomethyl methacrylates such as trimethylolpropane diacrylate, pentaerythritol triacrylate, pentaerythritol trimethacrylate, dipentaerythritol pentaacrylate, and dipentaerythritol pentamethacrylate, and monoesters of dicarboxylic acids such as malonic acid, succinic acid, glutaric acid, and terephthalic acid; and esters of tricarboxylic acids such as propane-1,2,3-tricarboxylic acid (trimalonic acid), butane-1,2,4-tricarboxylic acid, benzene-1,2,3-tricarboxylic acid, benzene-1,3,4-tricarboxylic acid, and benzene-1,3,5-tricarboxylic acid, and monohydroxy monoacrylates or monohydroxy monomethyl acrylates such as 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, and 2-hydroxypropyl methacrylate.

[0176] In addition, polyfunctional monomers having 3 to 12 olefinic unsaturated bonds in one molecule can be listed, with polyfunctional monomers being preferred.

[0177] In addition to the above, other multifunctional monomers that can be listed include: phenoxy tetraethylene glycol (meth)acrylate, phenoxy hexaethylene glycol (meth)acrylate, EO-modified phthalic acid (meth)acrylate, PO-modified phthalic acid (meth)acrylate, acrylated isocyanurate, bis(acryloyloxyneoprene)adipate, polyethylene glycol 200 di(meth)acrylate, polyethylene glycol 400 di(meth)acrylate, tetraethylene glycol di(meth)acrylate, EO-modified trimethylolpropane triacrylate, PO-modified trimethylolpropane tri(meth)acrylate. acrylates, tripropylene glycol di(meth)acrylate, tri(acryloyloxyethyl) isocyanurate, caprolactone-modified tri(acryloyloxyethyl) isocyanurate, neopentyl glycol di(meth)acrylate with hydroxypentanoic acid, pentaerythritol tri(meth)acrylate, dicyclopentyl di(meth)acrylate, EO-modified bisphenol A di(meth)acrylate, pentaerythritol hexa(meth)acrylate, pentaerythritol monohydroxypenta(meth)acrylate, alkyl-modified pentaerythritol penta(meth)acrylate, caprolactone-modified pentaerythritol hexa(meth)acrylate, etc.

[0178] From the viewpoint of balancing adhesion with other layers and high resolution of the resist pattern, photopolymerizable compound (D) may contain compounds represented by the following general formula (7).

[0179] General formula (7):

[0180] [CH2=CHC(=O)-(OC m H 2m ) n -OCH2]3-CR

[0181] (In general formula (7), m represents an integer from 1 to 3, and n represents an integer from 0 to 2. Multiple m and n can be the same or different.)

[0182] R represents a substituent selected from -CH2CH3, -CH2OH, and -CH2OC(=O)C=CH2.

[0183] Compounds represented by general formula (7) include: trimethylolpropane triacrylate, trimethylolpropane EO modified triacrylate, trimethylolpropane PO modified triacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, etc.

[0184] From the viewpoint of curability and developability, the proportion of photopolymerizable compound (D) in the composition for visible light shielding layer is preferably 5 to 400 parts by weight, more preferably 10 to 300 parts by weight, relative to 100 parts by weight of organic pigment (A).

[0185] (Any ingredient)

[0186] The composition for the visible light shielding layer may also contain other components. Examples of such other components include sensitizers, solvents, chain transfer agents, antioxidants, leveling agents, storage stabilizers, adhesion enhancers, ultraviolet absorbers, polymerization inhibitors, etc.

[0187] Sensers

[0188] Sensitizers improve the photocurability of the composition and the development stability of the cured product.

[0189] As sensitizers, examples include: unsaturated ketones such as chalcone derivatives and dibenzalacetone; 1,2-dione derivatives such as benzoyl or camphorquinone; polymethyl pigments such as benzoin derivatives, fluorene derivatives, naphthoquinone derivatives, anthraquinone derivatives, xanthones, thioxanthones, xanthonone derivatives, thioxanthonone derivatives, coumarin derivatives, coumarinone derivatives, anthocyanin derivatives, oxonol derivatives, acridine derivatives, azazine derivatives, thiazine derivatives, oxazine derivatives, indoline derivatives, azulene derivatives, azulenium derivatives, and squarylium derivatives. Porphyrin derivatives, tetraphenylporphyrin derivatives, triarylmethane derivatives, tetrabenzoporphyrin derivatives, tetrapyrazinoporphyrazine derivatives, phthalocyanine derivatives, tetraazaporphyrazine derivatives, tetraquinoxalinoporphyrazine derivatives, naphthylphthalocyanine derivatives, subphthalocyanine derivatives, pyranium derivatives, thiopyrylium derivatives, tetraphyrin derivatives, annulene derivatives, spiropyran derivatives, spiroxazine derivatives, thiospiropyran derivatives, metal aromatic hydrocarbon complexes, organorruthenium complexes, Michler's ketone derivatives, etc. Among the sensitizers, thioxanthone derivatives, mifepristone derivatives, and carbazole derivatives are preferred. More specifically, the following are preferred: 2,4-diethylthioxanthone, 2-chlorothioxanthone, 2,4-dichlorothioxanthone, 2-isopropylthioxanthone, 4-isopropylthioxanthone, 1-chloro-4-propoxythioxanthone, 4,4'-bis(dimethylamino)benzophenone, 4,4'-bis(diethylamino)benzophenone, 4,4'-bis(ethylmethylamino)benzophenone, N-ethylcarbazole, 3-benzoyl-N-ethylcarbazole, and 3,6-dibenzoyl-N-ethylcarbazole.

[0190] When using a sensitizer, from the viewpoint of curability and developability, the amount of sensitizer incorporated is preferably 3 to 60 parts by weight, more preferably 5 to 50 parts by weight, relative to 100 parts by weight of the photopolymerization initiator (C).

[0191] Solvent

[0192] Solvents improve the dispersibility of organic pigment (A), the coatability of the composition, and the film-forming properties.

[0193] Solvents can be categorized as follows: ester solvents (solvents containing -COO- but not -O- in the molecule), ether solvents (solvents containing -O- but not -COO- in the molecule), ether ester solvents (solvents containing both -COO- and -O- in the molecule), ketone solvents (solvents containing -CO- but not -COO- in the molecule), alcohol solvents (solvents containing OH but not -O-, -CO-, and -COO- in the molecule), aromatic hydrocarbon solvents, amide solvents, dimethyl sulfoxide, etc.

[0194] Specific examples of solvents include: 1,2,3-trichloropropane, 1,3-butanediol, 1,3-butylene glycol, 1,3-butanediol diacetate, 1,4-dioxane, 2-heptanone, 2-methyl-1,3-propanediol, 3,5,5-trimethyl-2-cyclohexen-1-one, 3,3,5-trimethylcyclohexanone, ethyl 3-ethoxypropionate, 3-methyl-1,3-butanediol, 3-methoxy-3-methyl-1-butanol, 3-methoxy-3-methylbutyl acetate, 3-methoxybutanol, 3-methoxybutyl acetate, 4-heptanone, m-xylene, m-diethylbenzene, m-diethylbenzene, etc. Chlorobenzene, N,N-dimethylacetamide, N,N-dimethylformamide, n-butanol, n-butylbenzene, n-propyl acetate, N-methylpyrrolidone, o-xylene, o-chlorotoluene, o-diethylbenzene, o-dichlorobenzene, p-chlorotoluene, p-diethylbenzene, sec-butylbenzene, tert-butylbenzene, γ-butyrolactone, isobutanol, isophorone, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monoethyl ether acetate, ethylene glycol monotert-butyl ether, ethylene glycol monobutyl ether, ethylene glycol monobutyl ether Ethylene glycol monopropyl ether, ethylene glycol monohexyl ether, ethylene glycol monomethyl ether, ethylene glycol monomethyl ether acetate, diisobutyl ketone, diethylene glycol diethyl ether, diethylene glycol dimethyl ether, diethylene glycol monoisopropyl ether, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether, diethylene glycol monobutyl ether acetate, diethylene glycol monomethyl ether, cyclohexanol, cyclohexanol acetate, cyclohexanone, dipropylene glycol dimethyl ether, dipropylene glycol methyl ether acetate, dipropylene glycol monoethyl ether, dipropylene glycol monobutyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monomethyl ether Diacetone alcohol, triacetin, tripropylene glycol monobutyl ether, tripropylene glycol monomethyl ether, propylene glycol diacetate, propylene glycol phenyl ether, propylene glycol monoethyl ether, propylene glycol monoethyl ether acetate, propylene glycol monobutyl ether, propylene glycol monopropyl ether, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, malonic acid monomethyl ether propionate, benzyl alcohol, methyl isobutyl ketone, methyl cyclohexanol, n-amyl acetate, n-butyl acetate, isoamyl acetate, isobutyl acetate, propyl acetate, diesters, ethyl lactate, etc.

[0195] Among these, considering coating properties and drying properties, solvents with a boiling point of 1 atm between 120°C and 245°C are preferred.

[0196] In the composition for visible light shielding layer, the solvent content is preferably 100 to 10,000 parts by weight, more preferably 500 to 5,000 parts by weight, relative to 100 parts by weight of organic pigment (A).

[0197] Chain transfer agent

[0198] Chain transfer agents improve the photocurability of the composition. Polyfunctional thiols are preferred as chain transfer agents. Specific examples of polyfunctional thiols include: hexanedithiol, decanedithiol, 1,4-butanediol dithiopropionate, 1,4-butanediol dithioglycolate, ethylene glycol dithioglycolate, ethylene glycol dithiopropionate, trimethylolpropane trithioglycolate, trimethylolpropane trithiopropionate, trimethylolethane tri(3-mercaptobutyrate), trimethylolpropane ... Hydroxymethylpropane tris(3-mercaptopropionate), pentaerythritol tetrathioglycolate, pentaerythritol tetrathiopropionate, pentaerythritol tetra(3-mercaptopropionate), dipentaerythritol hexa(3-mercaptopropionate), tri(2-hydroxyethyl) isocyanurate trimercaptopropionate, 1,4-dimethylmercaptobenzene, 2,4,6-trimercapto-triazine, 2-(N,N-dibutylamino)-4,6-dimercapto-triazine, etc. When using a chain transfer agent, from the viewpoint of development resistance after curing, the amount of this chain transfer agent relative to 100 parts by weight of the above-mentioned organic pigment (A) is preferably 0.05 to 100 parts by weight, more preferably 1 to 50 parts by weight.

[0199] Antioxidants

[0200] Antioxidants inhibit yellowing caused by the oxidation of components during the heating process. Examples of antioxidants include hindered phenolic, hindered amine, phosphorus, sulfur, benzotriazole, benzophenone, hydroxyamine, salicylate, and triazine compounds. From the viewpoint of balancing the transmittance and sensitivity of the coating, hindered phenolic, hindered amine, phosphorus, or sulfur antioxidants are preferred, with hindered phenolic, hindered amine, or phosphorus antioxidants being more preferred.

[0201] When using an antioxidant, the content of the antioxidant is preferably 0.5 to 5.0 parts by weight relative to 100 parts by weight of the non-volatile components of the composition for the visible light shielding layer.

[0202] Leveling agent

[0203] Leveling agents improve the leveling properties of coatings. As leveling agents, dimethylsiloxanes having a polyether or polyester structure in their main chain are preferred. Specific examples of dimethylsiloxanes having a polyether structure in their main chain include FZ-2122 manufactured by DowCorning Toray Co., Ltd., and BYK-333 manufactured by BYK-Chemie. Specific examples of dimethylsiloxanes having a polyester structure in their main chain include BYK-310 and BYK-370 manufactured by BYK-Chemie.

[0204] Furthermore, dimethyl polysiloxanes having polyepoxyalkane units are preferred as leveling agents. Examples of polyepoxyalkane units include polyethylene oxide units and polyepoxypropane units. Examples of dimethyl polysiloxanes having polyepoxyalkane units include FZ-2110, FZ-2122, FZ-2130, FZ-2166, FZ-2191, FZ-2203, and FZ-2207 manufactured by Dow Corning Toray Co., Ltd.

[0205] When using a leveling agent, the content of the leveling agent is preferably 0.003 to 1.0 parts by weight relative to the total weight of the non-volatile components of the composition for the visible light shielding layer.

[0206] In addition, it can be combined with leveling agents and supplemented with anionic, cationic, nonionic or amphoteric surfactants.

[0207] Examples of anionic surfactants include: polyoxyethylene alkyl ether sulfates, sodium dodecylbenzene sulfonate, alkali salts of styrene-acrylic acid copolymers, sodium alkylnaphthalene sulfonate, sodium alkyl diphenyl ether disulfonate, monoethanolamine lauryl sulfate, triethanolamine lauryl sulfate, ammonium lauryl sulfate, monoethanolamine stearate, sodium stearate, sodium lauryl sulfate, monoethanolamine of styrene-acrylic acid copolymers, and polyoxyethylene alkyl ether phosphates.

[0208] Examples of cationic surfactants include alkyl quaternary ammonium salts or their ethylene oxide adducts.

[0209] Examples of nonionic surfactants include: polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene nonylphenyl ether, polyoxyethylene alkyl ether phosphate, polyoxyethylene dehydrated sorbitol monostearate, polyethylene glycol monolaurate, and other fatty alcohol ethoxylates; alkyl betaines such as alkyl dimethylaminoacetic acid betaine, amphoteric surfactants such as alkyl imidazoline, and fluorinated or organosilicon surfactants.

[0210] Storage stabilizers

[0211] Storage stabilizers are used to stabilize the viscosity of compositions used in visible light shielding layers. Examples of storage stabilizers include quaternary ammonium chlorides such as benzyltrimethyl chloride and diethylhydroxyamine, organic acids such as lactic acid and oxalic acid and their methyl ethers, tert-butylcatechol, organophosphorus compounds such as tetraethylphosphine and tetraphenylphosphine, and phosphites. The storage stabilizer can be used in an amount of 0.1 to 10 parts by weight relative to 100 parts by weight of the total organic pigment (A).

[0212] • Sealing enhancer

[0213] Adhesion enhancers are used to improve adhesion to other layers.

[0214] Examples of adhesives that enhance adhesion include: vinyltris(β-methoxyethoxy)silane, vinylethoxysilane, vinyltrimethoxysilane, and other vinyl silanes; γ-methacryloyloxypropyltrimethoxysilane and other (meth)acrylic silanes; β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, β-(3,4-epoxycyclohexyl)methyltrimethoxysilane, β-(3,4-epoxycyclohexyl)ethyltriethoxysilane, β-(3,4-epoxycyclohexyl)methyltriethoxysilane, γ-epoxypropoxypropyltrimethoxysilane, γ-cyclo... Silane coupling agents such as oxypropoxypropyltriethoxysilane; aminosilanes such as N-β-(aminoethyl)γ-aminopropyltrimethoxysilane, N-β-(aminoethyl)γ-aminopropyltriethoxysilane, N-β-(aminoethyl)γ-aminopropylmethyldiethoxysilane, γ-aminopropyltriethoxysilane, γ-aminopropyltrimethoxysilane, N-phenyl-γ-aminopropyltrimethoxysilane, and N-phenyl-γ-aminopropyltriethoxysilane; and thiosilanes such as γ-mercaptopropyltrimethoxysilane and γ-mercaptopropyltriethoxysilane. The adhesion enhancer can be used in an amount of 0.01 to 10 parts by weight, preferably 0.05 to 5 parts by weight, relative to 100 parts by weight of the total amount of organic pigment (A) in the composition for visible light shielding layer.

[0215] • UV absorbers, polymerization inhibitors

[0216] UV absorbers and polymerization inhibitors improve the solubility contrast of the composition after curing.

[0217] Examples of ultraviolet absorbers include: 2-[4-[(2-hydroxy-3-(dodecyl and tridecyl)oxypropyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-[1-octyloxycarbonylethoxy]phenyl)-4,6-bis(4-phenylphenyl)-1,3,5-triazine, and other hydroxyphenyl triazine series; 2-(5-methyl-2-hydroxyphenyl)benzotriazole, 2-(2H-benzotriazole-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol, 2-(3-tert-butyl-5-methyl-2-hydroxyphenyl)-5-chlorobenzotriazole, and other benzotriazine series. Azole series; benzophenone series such as 2,4-dihydroxybenzophenone, 2-hydroxy-4-octoxybenzophenone, and 2,2',4,4'-tetrahydroxybenzophenone; salicylate series such as phenyl salicylate and p-tert-butyl phenyl salicylate; cyanoacrylate series such as ethyl-2-cyano-3,3'-diphenyl acrylate; hindered amine series such as 2,2,6,6-tetramethylpiperidin-1-oxy(triacetone-amine-N-oxy), bis(2,2,6,6-tetramethyl-4-piperidinyl)-sebate, and poly[[6-[(1,1,3,3-tetrabutyl)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino], etc. In addition, examples of polymerization inhibitors include: hydroquinone, tert-butylhydroquinone, 2,5-di-tert-butylhydroquinone, 4-benzoquinone, 4-methoxyphenol, 4-methoxy-1-naphthol, tert-butylcatechol and other hydroquinone derivatives and phenol compounds.

[0218] Amine compounds such as phenothiazine, bis-(1-dimethylbenzyl)phenothiazine, and 3,7-dioctylphenothiazine;

[0219] Copper and manganese salt compounds such as copper dibutyldithiocarbamate, copper diethyldithiocarbamate, manganese diethyldithiocarbamate, and manganese diphenyldithiocarbamate.

[0220] 4-Nitrophenol, N-nitrosodiphenylamine, N-nitrosocyclohexylhydroxylamine, N-nitrosophenylhydroxylamine and other nitroso compounds and their ammonium or aluminum salts, etc.

[0221] When using ultraviolet absorbers and / or polymerization inhibitors, their total content relative to 100 parts by weight of organic pigment (A) is preferably 0.01 to 20 parts by weight, more preferably 0.05 to 10 parts by weight.

[0222] It should be noted that each component in the composition for the visible light shielding layer can be used independently as a single type, or in combination of two or more types.

[0223] (2) Composition for near-infrared light shielding layer

[0224] The near-infrared light-shielding layer composition comprises: a near-infrared absorbing pigment (E) represented by the following general formula (1), a resin-type dispersant (F) with an amine value of 20 mg KOH / g to 200 mg KOH / g (hereinafter referred to as resin-type dispersant (F)), and a binder resin (G) with a weight-average molecular weight of 5,000 to 40,000 and an acid value of 100 mg KOH / g to 130 mg KOH / g (hereinafter referred to as binder resin (G)). By employing such a composition, a composition that satisfies the above-mentioned spectroscopic characteristics and the above-mentioned film-forming conditions is obtained.

[0225] [Chemical Formula 8]

[0226]

[0227] X 1 ~X 10 Each of these groups independently represents a hydrogen atom, an alkyl group that may have substituents, an alkenyl group that may have substituents, an aryl group that may have substituents, an aralkyl group that may have substituents, an alkoxy group that may have substituents, an aryloxy group that may have substituents, an amino group, a substituted amino group, a sulfonyl group, and -SO2NR. 1 R 2 -COOR 1 -CONR 1 R 2 Nitro, cyano, or halogen atom, X 1 ~X 10 They can also bond together to form a ring.

[0228] R 1 and R 2 Each can independently represent a hydrogen atom or an alkyl group that may have substituents.

[0229] (Near-infrared absorbing pigment (E))

[0230] The near-infrared absorbing pigment represented by the above general formula (1) has low absorption of visible light (wavelength 400-700nm), excellent near-infrared absorption capacity, and excellent durability.

[0231] As X 1 ~X 10 Alkyl groups that may have substituents include: methyl, ethyl, n-propyl, isopropyl, tert-butyl, tert-pentyl, 2-ethylhexyl, stearyl, chloromethyl, trichloromethyl, trifluoromethyl, 2-methoxyethyl, 2-chloroethyl, 2-nitroethyl, cyclopentyl, cyclohexyl, dimethylcyclohexyl, etc. From the perspective of the durability and ease of synthesis of the compound, methyl, ethyl, or n-propyl are preferred, and methyl is more preferred.

[0232] As X1 ~X 10 The alkenyl groups that can have substituents include: vinyl, 1-propenyl, allyl, 2-butenyl, 3-butenyl, isopropenyl, isobutenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 1-hexenyl, 2-hexenyl, 3-hexenyl, 4-hexenyl, 5-hexenyl, etc. From the perspective of the durability and ease of synthesis of the compound, vinyl or allyl is preferred.

[0233] As X 1 ~X 10 The aryl groups that can have substituents include: phenyl, naphthyl, 4-methylphenyl, 3,5-dimethylphenyl, pentafluorophenyl, 4-bromophenyl, 2-methoxyphenyl, 4-diethylaminophenyl, 3-nitrophenyl, 4-cyanophenyl, etc. From the perspective of the durability and ease of synthesis of the compound, phenyl or 4-methylphenyl are preferred.

[0234] As X 1 ~X 10 Aryl groups that can have substituents include benzyl, phenethyl, phenylpropyl, naphthylmethyl, etc. Among them, benzyl is preferred in terms of compound durability and ease of synthesis.

[0235] As X 1 ~X 10 Alkoxy groups that can have substituents include: methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, n-octoxy, 2-ethylhexyloxy, trifluoromethoxy, cyclohexyloxy, stearoxy, etc. From the perspective of compound durability and ease of synthesis, methoxy, ethoxy or trifluoromethoxy are preferred.

[0236] As X 1 ~X 10 The aryloxy groups that can have substituents include: phenoxy, naphthoxy, 4-methylphenoxy, 3,5-chlorophenoxy, 4-chloro-2-methylphenoxy, 4-tert-butylphenoxy, 4-methoxyphenoxy, 4-diethylaminophenoxy, 4-nitrophenoxy, etc. From the perspective of compound durability and ease of synthesis, phenoxy or naphthoxy are preferred.

[0237] As X 1 ~X 10The substituted amino groups in the compound can be categorized as follows: methylamino, ethylamino, isopropylamino, n-butylamino, cyclohexylamino, stearylamino, dimethylamino, diethylamino, dibutylamino, N,N-di(2-hydroxyethyl)amino, phenylamino, naphthylamino, 4-tert-butylphenylamino, diphenylamino, N-phenyl-N-ethylamino, etc. From the perspective of compound durability and ease of synthesis, dimethylamino or diethylamino is preferred.

[0238] As X 1 ~X 10 The halogen atoms in the atom can be listed as fluorine, bromine, chlorine, and iodine.

[0239] As X 1 ~X 10 The following are examples of structures formed by mutual bonding to form rings. * indicates a bonding site.

[0240] [Chemical Formula 9]

[0241]

[0242] Additionally, R 1 and R 2 Alkyl groups that may have substituents and X 1 ~X 10 The alkyl groups are the same, and the preferred methods are also the same.

[0243] Among them, X is preferred. 1 ~X 10 Contains unsubstituted alkyl groups, preferably X 3 X 4 X 7 and X 8 At least one of them is an unsubstituted alkyl group, with X being more preferably an unsubstituted alkyl group. 3 and X 7 It is an unsubstituted alkyl group. Furthermore, the unsubstituted alkyl group is particularly preferably methyl.

[0244] From the viewpoint of the near-infrared absorption capacity of the cured product, based on the non-volatile components in the near-infrared shading layer composition, the content of near-infrared absorbing pigment (E) in the near-infrared shading layer composition is preferably 0.01 to 50% by weight, more preferably 0.1 to 30% by weight.

[0245] Near-infrared absorbing pigment (E) is preferably used in a finely milled form. The primary particle size of the near-infrared absorbing pigment (E) is preferably 1–200 nm, more preferably 10–150 nm, and even more preferably 10–100 nm. If the average primary particle size is 1 nm or more, aggregation of the near-infrared absorbing pigment (E) can be suppressed, resulting in excellent dispersibility / dispersion stability. On the other hand, if the primary particle size is 200 nm or less, the influence of particle scattering is reduced, and the absorption spectrum becomes sharper. It should be noted that the particle size determination method is the same as that for the organic pigment (A) described above.

[0246] Near-infrared absorbing pigments (E) can be commercially available or synthesized. There are no particular limitations on the synthesis method. As an example, it can be synthesized based on the following scheme 1. Specifically, 1,8-diaminonaphthalene (the following formula (2)) and the following formula (3) are heated under reflux in a solvent with a catalyst to synthesize the following formula (4). 3,4-dihydroxy-3-cyclobutene-1,2-dione is added, and the mixture is further heated under reflux to obtain the compound of formula (1) (near-infrared absorbing pigment (E)).

[0247] [Chemical Formula 10]

[0248] Option 1

[0249]

[0250] (Resin-type dispersant (F))

[0251] From the perspective of the dispersibility / dispersion stability of the aforementioned near-infrared absorbing pigment (E), the composition for the near-infrared light-shielding layer contains a resin-type dispersant (F) with an amine value of 20 mg KOH / g to 200 mg KOH / g. It should be noted that the amine value is preferably 60 to 150 mg KOH / g, more preferably 60 to 120 mg KOH / g.

[0252] The resin-type dispersant (F) has an affinity site that adsorbs onto the pigment (E) and a site that is compatible with a carrier such as a binder resin (G), thereby stabilizing the dispersion by adsorbing onto the pigment (E). Resins with structure control, such as grafted (comb-shaped) or block-type resins, are particularly preferred. Specifically, the main chain and / or side chain backbone of resin-type dispersants can include: polycarboxylic acid esters such as polyurethanes and polyacrylates, unsaturated polyamides, polycarboxylic acids, polycarboxylic acid (partial) amine salts, polycarboxylic acid ammonium salts, polycarboxylic acid alkylamine salts, polysiloxanes, long-chain polyaminoamide phosphates, polycarboxylic acid esters containing hydroxyl groups, or their modifications, oily dispersants such as amides or their salts formed by the reaction of poly(lower alkylimides) with polyesters having free carboxyl groups, (meth)acrylic acid-styrene copolymers, (meth)acrylic acid-(meth)acrylate copolymers, styrene-maleic acid copolymers, polyvinyl alcohol, polyvinylpyrrolidone, and other water-soluble resins or water-soluble polymers, polyester systems, modified polyacrylate systems, ethylene oxide / propylene oxide addition compounds, phosphate ester systems, etc. Among these, (meth)acrylic acid copolymers are preferred as the main chain and / or side chain. Furthermore, the pigment adsorption groups in resin-type dispersants (F) can specifically include acidic adsorption groups such as aromatic carboxyl groups and phosphate groups, as well as basic adsorption groups such as primary amino groups, secondary amino groups, tertiary amino groups, and quaternary ammonium salts. From the viewpoint of near-infrared absorption capacity and durability, resin-type dispersants having aromatic carboxyl groups, tertiary amino groups, or quaternary ammonium salts as pigment adsorption groups are preferred; resin-type dispersants having tertiary amino groups or quaternary ammonium salts are more preferred; and resin-type dispersants having both tertiary amino groups and quaternary ammonium salts are even more preferred. When a resin-type dispersant contains both tertiary amino groups and quaternary ammonium salt groups, it is preferred not only from the viewpoints of transmittance in the visible light region, near-infrared absorption capacity, durability, and patternability, but also from the viewpoint of storage stability.

[0253] Examples of resin-type dispersants (F) include: Disperbyk-106, 108, 109, 112, 116, 130, 140, 142, 145, 166, 180, 187, 2001, 2010, 2020, 2025, 2050, 2070, and 6919 manufactured by BYK Japan; SOLSPERSE-13240, 13650, 13940, 20000, 24000, 26000, 32000, 33000, 39000, 56000, and 71000 manufactured by Lubrizol Japan Ltd.; and AJISPER PB711 manufactured by Ajinomoto Fine-Techno Co., Inc.

[0254] Furthermore, resin-type dispersants (F) can be manufactured using known methods, such as those described in Japanese Patent Application Publication No. 2010-506016. Additionally, when the resin-type dispersant (F) is a block copolymer, it can be manufactured, for example, by copolymerizing a monomer having a tertiary amino or quaternary amino group with other monomers. Furthermore, when the resin-type dispersant (F) is a graft copolymer, it can be manufactured by grafting a monomer having a tertiary amino or quaternary amino group onto the reactive groups of the side chains of the polymer that forms the main chain.

[0255] From the viewpoint of optical properties and durability, the content of resin-type dispersant (F) in the near-infrared light-shielding layer composition is preferably 5 to 200% by weight, more preferably 10 to 150% by weight, based on the weight of the near-infrared absorbing pigment (E).

[0256] (Adhesive resin (G))

[0257] From the viewpoints of storage stability and alkaline developability, the near-infrared light-shielding layer composition contains an adhesive resin (G) with a weight-average molecular weight of 5,000 to 40,000 and an acid value of 100 mg KOH / g to 130 mg KOH / g. This adhesive resin (G) preferably has a spectral transmittance of 80% or more, more preferably 95% or more, across the entire visible light region (wavelength 400 to 700 nm). From the viewpoint of storage stability, an acrylic copolymer containing methacrylic acid and hydroxyethyl methacrylate as monomers is preferred.

[0258] Furthermore, from the viewpoint of further improving photosensitivity and solvent resistance, the weight-average molecular weight of the binder resin (G) is more preferably 10,000 to 30,000. The acid value is more preferably 100 mg KOH / g to 120 mg KOH / g. Additionally, the binder resin (G) can also be an active energy-curable resin having alkene-type unsaturated double bonds, wherein an alkali-soluble active energy-curable resin is preferred.

[0259] The specific examples of the above-mentioned active energy ray curable resins and alkali-soluble active energy ray curable resins with alkali-bonded unsaturated double bonds are as described in the above-mentioned adhesive resin (B), and therefore the description is omitted here.

[0260] From the viewpoint of the dispersibility of near-infrared absorbing pigments (E), the number average molecular weight (Mn) of the binder resin (G) is preferably in the range of 25,000 to 50,000, and the value of Mw / Mn is preferably 10 or less.

[0261] From the viewpoint of film-forming properties and the durability of the cured film, the proportion of binder resin (G) in the near-infrared light-shielding layer composition is preferably 30 to 500 parts by weight relative to 100 parts by weight of near-infrared absorbing pigment (E).

[0262] (Any ingredient)

[0263] The composition for the near-infrared light-shielding layer may also contain other components. Examples of such other components include photopolymerizable monomers, photopolymerization initiators, solvents, sensitizers, chain transfer agents, antioxidants, amine compounds, leveling agents, curing agents, curing accelerators, other near-infrared absorbing pigments, storage stabilizers, and adhesion enhancers.

[0264] Photopolymerizable monomers

[0265] Photopolymerizable monomers can be listed as monomers listed as the above-mentioned photopolymerizable compound (D), preferably including polyfunctional monomers.

[0266] When using a photopolymerizable monomer, from the viewpoint of curability and developability, the proportion of the photopolymerizable monomer relative to 100 parts by weight of near-infrared absorbing pigment (E) is preferably 5 to 400 parts by weight, more preferably 10 to 300 parts by weight.

[0267] Photopolymerization initiator

[0268] Photopolymerization initiators may include the same photopolymerization initiators listed as photopolymerization initiators (C) above, among which oxime ester compounds and amino ketone compounds are preferred from the viewpoint of sensitivity and resolution.

[0269] When using a photopolymerization initiator, from the viewpoint of curability and developability, the proportion of the photopolymerization initiator relative to 100 parts by weight of near-infrared absorbing pigment (E) is preferably 5 to 200 parts by weight, more preferably 10 to 150 parts by weight.

[0270] Solvent

[0271] The solvent can be the same as the solvent exemplified in the above-described visible light shielding layer composition. In the near-infrared light shielding layer composition, the solvent content is preferably 500 to 4000 parts by weight relative to 100 parts by weight of near-infrared absorbing pigment (E).

[0272] Sensers

[0273] The sensitizer can be the same as the sensitizer exemplified in the above-described composition for visible light shielding. When using a sensitizer, from the viewpoint of curability and developability, the amount of sensitizer incorporated is preferably 3 to 60 parts by weight, more preferably 5 to 50 parts by weight, relative to 100 parts by weight of the above-described photopolymerization initiator.

[0274] Chain transfer agent

[0275] The chain transfer agent can be the same as the chain transfer agent exemplified in the above-described visible light shielding layer composition. When using a chain transfer agent, from the viewpoint of development resistance after curing, the amount of the chain transfer agent is preferably 0.1 to 30 parts by weight, more preferably 1 to 20 parts by weight, relative to 100 parts by weight of the total amount of non-volatile components in the above-described near-infrared shielding layer composition.

[0276] Antioxidants

[0277] The antioxidant can be the same as the antioxidant exemplified in the above-described visible light shielding layer composition. When using an antioxidant, the content of the antioxidant is preferably 0.5 to 5.0 parts by weight relative to 100 parts by weight of the non-volatile components of the near-infrared light shielding layer composition.

[0278] ·Amine compounds

[0279] Amine compounds are used to reduce oxygen dissolved in compositions for near-infrared light-shielding layers. Examples of such amine compounds include triethanolamine, methyldiethanolamine, triisopropanolamine, methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, isoamyl 4-dimethylaminobenzoate, 2-dimethylaminoethyl benzoate, 2-ethylhexyl 4-dimethylaminobenzoate, and N,N-dimethyl-p-toluidine.

[0280] Leveling agent

[0281] The leveling agent can be the same as the leveling agent exemplified in the above-described visible light shielding layer composition. When using a leveling agent, the content of the leveling agent is preferably 0.003 to 1.0 parts by weight relative to the total weight of the non-volatile components of the near-infrared light shielding layer composition.

[0282] Storage stabilizers

[0283] The same storage stabilizer as exemplified in the above-described composition for visible light shielding can be used. The storage stabilizer can be used in an amount of 0.1 to 10 parts by weight relative to 100 parts by weight of the total amount of near-infrared absorbing pigment (E).

[0284] • Sealing enhancer

[0285] The adhesion enhancer can be the same as the adhesion enhancer exemplified in the above-described composition for visible light shielding. The adhesion enhancer can be used in an amount of 0.01 to 10 parts by weight, preferably 0.05 to 5 parts by weight, relative to 100 parts by weight of the total amount of near-infrared absorbing pigment (E).

[0286] Other near-infrared absorbing pigments

[0287] Furthermore, the composition for the near-infrared light-shielding layer may also contain near-infrared absorbing pigments other than near-infrared absorbing pigments (E). Examples of such near-infrared absorbing pigments include: anthocyanin compounds, squaric acid cyanide compounds, phthalocyanine compounds, naphthyl phthalocyanine compounds, amineonium compounds, diiminoonium compounds, croconium compounds, azo compounds, quinone-type complex compounds, and dithiol metal complex compounds.

[0288] It should be noted that each component in the near-infrared light-shielding layer composition can be used independently as a single type, or in combination of two or more types.

[0289] (3) Composition for coloring layer

[0290] The composition for coloring layers contains at least a colorant (H), a photopolymerizable compound (I), and a photopolymerization initiator (J), and may also contain other components as needed.

[0291] (Coloring agent (H))

[0292] Colorants (H) are used to give each colored layer the desired spectroscopic properties and can be appropriately selected and used from known pigments and dyes.

[0293] As a pigment, either organic or inorganic pigments can be preferred. Furthermore, since the coloring layer composition described later exhibits excellent low-temperature curing properties, dyes with low heat resistance can be preferred over pigments.

[0294] Inorganic pigments include: barium sulfate, zinc white, lead sulfate, yellow lead, zinc yellow, red iron oxide (red iron oxide (III)), cadmium red, ultramarine, Prussian blue, chromium oxide green, cobalt green, ochre, titanium black, synthetic iron black, titanium oxide, iron tetroxide, and other metal oxide powders, metal sulfide powders, and metal powders. To achieve a balance between chroma and brightness, and to ensure good coatability, sensitivity, and developability, inorganic pigments are preferably used in combination with organic pigments.

[0295] As a dye, any one of the following can be used: acid dyes, direct dyes, basic dyes, salt-forming dyes, oil-soluble dyes, disperse dyes, reactive dyes, mordant dyes, vat dyes, sulfur dyes, etc. Alternatively, it can be a derivative of these dyes, or a lake pigment formed by lakeification of the dye.

[0296] From the viewpoint of high color rendering, excellent heat resistance, and especially excellent resistance to thermal decomposition, the colorant (H) preferably contains pigments, and more preferably organic pigments.

[0297] The following is a detailed explanation of the colorant (H) for each color. It should be noted that each color can be achieved using one colorant (H) alone, or in combination of two or more.

[0298] Red layer

[0299] As a colorant for the red layer, it preferably contains red pigment, but may also contain orange pigment, yellow pigment, etc.

[0300] Specific examples of red pigments include: CI Pigment Red (PR) 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 15, 16, 17, 21, 22, 23, 31, 32, 37, 38, 41, 47, 48, 48:1, 48:2, 48:3, 48:4, 49, 49:1, 49:2, 50:1, 52:1, 52:2, 53, 53:1, 53 :2, 53:3, 57, 57:1, 57:2, 58:4, 60, 63, 63:1, 63:2, 64, 64:1, 68, 69, 81, 81:1, 81:2, 81:3, 81:4, 83, 88, 90:1, 101, 101:1, 104, 108, 108:1, 109, 112, 113, 114, 122, 123, 144, 146, 14 7, 149, 151, 166, 168, 169, 170, 172, 173, 174, 175, 176, 177, 178, 179, 181, 184, 185, 187, 188, 190, 193, 194, 200, 202, 206, 207, 208, 209, 210, 214, 216, 220, 221, 224, 230, 231, 2 32, 233, 235, 236, 237, 238, 239, 242, 243, 245, 247, 249, 250, 251, 253, 254, 255, 256, 257, 258, 259, 260, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, etc.

[0301] Specific examples of orange pigments include: CI Pigment Orange 36, 38, 43, 51, 55, 59, 61, etc. Similarly, specific examples of yellow pigments include the same pigments as those exemplified in Organic Pigments (A) above.

[0302] From the viewpoint of high brightness and high color reproducibility, the colorant used for the red layer preferably includes Pigment Red 177, and more preferably includes Pigment Red 139, Pigment Red 177, and Pigment Red 254. When using PY139, PY177, and PY254 in combination, it is preferable that the content of PY177 in the red colorant is set to 55% to 65% by weight, the content of PY254 is set to 15% to 25% by weight, and the content of PY139 is set to 15% to 25% by weight.

[0303] Green layer

[0304] As a colorant for the green layer, it is preferred to contain green or blue pigments, and may also contain yellow pigments, etc.

[0305] Specific examples of the aforementioned green pigments include: CI Pigment Green (PG) 1, 2, 4, 7, 8, 10, 13, 14, 15, 17, 18, 19, 26, 36, 45, 48, 50, 51, 54, 55, 58, 59, 62, 63, etc.

[0306] Specific examples of blue and yellow pigments can be listed as the same pigments as those exemplified in the above-mentioned organic pigments (A).

[0307] From the viewpoint of high brightness and high color reproducibility, the colorant used in the green layer preferably contains pigment yellow 185, and more preferably contains any one of pigment green 36, pigment green 58 or pigment blue 15:3.

[0308] The preferred content of PY185 in the colorant for the green layer is 49% to 59% by weight. The preferred combined content of PG36 and PG58 in the colorant for the green layer is 33% to 43% by weight. The preferred content of PB15:3 in the colorant for the green filter is 3% to 13% by weight.

[0309] Blue layer

[0310] As a colorant for the blue layer, it preferably contains blue pigment, and may also contain purple pigment, succinate dye, etc.

[0311] Specific examples of blue and purple pigments can be listed as the same pigments as those exemplified in the above-mentioned organic pigments (A).

[0312] Xanthan dyes can be any of the following: oil-soluble dyes, acid dyes, direct dyes, and basic dyes. They can also be used as lake pigments.

[0313] Specific examples of xanthan oil-soluble dyes include: CI Solvent Red 35, CI Solvent Red 36, CI Solvent Red 42, CI Solvent Red 43, CI Solvent Red 44, CI Solvent Red 45, CI Solvent Red 46, CI Solvent Red 47, CI Solvent Red 48, CI Solvent Red 49, CI Solvent Red 72, CI Solvent Red 73, CI Solvent Red 109, CI Solvent Red 140, CI Solvent Red 141, CI Solvent Red 237, CI Solvent Red 246, CI Solvent Violet 2, CI Solvent Violet 10, etc. From the viewpoint of color development, CI Solvent Red 35, CI Solvent Red 36, CI Solvent Red 49, CI Solvent Red 109, CI Solvent Red 237, CI Solvent Red 246, and CI Solvent Violet 2 are preferred.

[0314] Specific examples of xaton-based basic dyes include: Basic Red 1 (Rhodamine 6GCP), 8 (Rhodamine G), and Basic Violet 10 (Rhodamine B). From the viewpoint of excellent color development, Basic Red 1 and Basic Violet 10 are preferred.

[0315] Specific examples of xanthan acid dyes include: CI Acid Red 51 (Erysipelothrix (Edible Red No. 3)), CI Acid Red 52 (Acid Rhodamine), CI Acid Red 87 (Eosin G (Edible Red No. 103)), CI Acid Red 92 (Acid Fluorescent Pink PB (Edible Red No. 104)), CI Acid Red 289, CI Acid Red 388, Bengal Rose B (Edible Red No. 5), Acid Rhodamine G, and CI Acid Violet 9. From the viewpoint of heat resistance and lightfastness, CI Acid Red 87, CI Acid Red 92, CI Acid Red 388, CI Acid Red 52 (Acid Rhodamine), CI Acid Red 289, Acid Rhodamine G, and CI Acid Violet 9 are preferred, and CI Acid Red 52 and CI Acid Red 289 are even more preferred.

[0316] The colorant used for the blue layer preferably contains Pigment Blue 15:6, and more preferably Pigment Violet 23 or a zeolite dye.

[0317] The content of PB15:6 in the colorant for the blue layer is preferably 58% to 64% by weight. The content of PV23 in the colorant for the blue layer is preferably 12% to 20% by weight. In addition, the content of xanthan dye in the colorant for the blue layer is preferably 17% to 25% by weight.

[0318] As with the colorants described above, when using pigments, it is preferable to refine them. The method of refining and the preferred particle size are the same as those for the organic pigment (A) described above.

[0319] (Photopolymerizable compound (I))

[0320] Photopolymerizable compound (I) can include compounds that are the same as those described above for photopolymerizable compound (D). From the viewpoint of balancing adhesion to other layers and high resolution of the resist pattern, photopolymerizable compound (I) preferably includes compounds represented by the general formula (7) described above.

[0321] The proportion of photopolymerizable compound (I) relative to the total non-volatile components in the coloring layer composition is preferably 5 to 40% by weight. Within this range, the adhesion of the fine pattern is excellent, and tapering can be suppressed, resulting in a high-resolution display device. Furthermore, relative to the total amount of photopolymerizable compound (I), the content of the compound represented by the above general formula (1) in the photopolymerizable compound (I) is preferably 50 to 100% by weight, more preferably 60% by weight or more. Within this range, the coating adhesion to the substrate and chemical resistance during the manufacturing process are excellent.

[0322] (Photopolymerization initiator (J))

[0323] Photopolymerization initiator (J) can be appropriately selected and used from substances that promote the polymerization reaction of the above-mentioned photopolymerizable compounds through the action of light.

[0324] In this disclosure, from the viewpoint of excellent curability, color properties, chemical resistance and developability under ultraviolet light, an oxime ester-based photopolymerization initiator is preferred.

[0325] The content of photopolymerization initiator (J) relative to 100 parts by weight of colorant (H) is preferably 0.5 to 50 parts by weight, and more preferably 1 to 30 parts by weight from the viewpoint of photocurability and developability. If the content of photopolymerization initiator (J) is 1 part by weight or more, the adhesion to the substrate is excellent. In addition, if the content of photopolymerization initiator (J) is 30 parts by weight or less, the resolution is excellent.

[0326] ·Any ingredient

[0327] The composition for the coloring layer may also contain other components. Examples of such other components include sensitizers, resins, thermosetting compounds, antioxidants, adhesion enhancers, leveling agents, curing agents, curing accelerators, storage stabilizers, solvents, dispersants, chain transfer agents, etc.

[0328] Sensers

[0329] Sensitizers can be listed as the same sensitizers as those used in the above-mentioned visible light shielding layer compositions.

[0330] Among the aforementioned sensitizers, thioxanone derivatives, mifepristone derivatives, and carbazole derivatives are particularly suitable for sensitization. When using a sensitizer, the content of the sensitizer is preferably 3 to 60 parts by weight relative to 100 parts by weight of the photopolymerization initiator (J), and more preferably 5 to 50 parts by weight from the viewpoint of photocurability and developability.

[0331] · Resin

[0332] The coloring layer composition may also contain a resin. Preferably, the resin is a transparent resin with a transmittance of 80% or more in the entire wavelength region of 400–700 nm when forming a film with a thickness of 2 μm, and the transmittance is preferably 95% or more. Examples of resins include active energy ray-curable resins and thermoplastic resins. From the viewpoint of patterning using photolithography, the resin preferably contains an alkali-soluble resin. Examples of such resins include the same resin as the binder resin (B) described above.

[0333] The resin content is preferably 20 to 400 parts by weight, more preferably 50 to 250 parts by weight, relative to 100 parts by weight of colorant (H). When the resin content is appropriate, it not only facilitates the formation of a coating but also easily yields good color characteristics.

[0334] Antioxidants

[0335] The coloring layer composition may contain an antioxidant. Examples of antioxidants include those described above. When using an antioxidant, from the viewpoint of brightness and sensitivity, the antioxidant is preferably 0.5 to 5.0% by weight in the total non-volatile components of the coloring layer composition.

[0336] • Sealing enhancer

[0337] The coloring layer composition may contain an adhesion enhancer. Examples of adhesion enhancers include those described above. The adhesion enhancer may be used in an amount of 0.01 to 10 parts by weight, preferably 0.05 to 5 parts by weight, relative to 100 parts by weight of the colorant in the coloring layer composition.

[0338] Leveling agent

[0339] The coloring layer composition may contain a leveling agent. Examples of leveling agents include those mentioned above. The leveling agent is preferably used at 0.003 to 0.5% by weight of the total non-volatile components of the coloring layer composition.

[0340] Solvent

[0341] The coloring layer composition may contain a solvent. This makes viscosity adjustment of the coloring layer composition easier, thus facilitating the formation of a smooth coating. The same solvents exemplified in the visible light shielding layer compositions described above can be used.

[0342] The solvent can adjust the coloring layer composition to an appropriate viscosity to form a coating film with the desired uniform film thickness. Therefore, it is preferable to use 200 to 900 parts by weight, more preferably 300 to 570 parts by weight, relative to 100 parts by weight of the non-volatile components of the coloring layer composition. The viscosity of the coloring layer composition is preferably 2.4 to 7.2 mPa·s, more preferably 3.4 to 6.4 mPa·s.

[0343] • Dispersing agents

[0344] To disperse the colorant in the solvent, the coloring layer composition may appropriately contain dispersing aids such as pigment derivatives, resin-type dispersants, and surfactants. Dispersing aids are highly effective in preventing the re-aggregation of the dispersed colorant; therefore, coloring layer compositions formed by dispersing the colorant in a colorant carrier using dispersing aids exhibit good brightness and viscosity stability.

[0345] ((pigment derivatives))

[0346] As pigment derivatives, examples include compounds formed by introducing a basic substituent, an acidic substituent, or a phthalimide methyl group that may have a substituent into an organic pigment, anthraquinone, acridinone, or triazine. For example, Japanese Patent Application Publication Nos. 63-305173, 57-15620, 59-40172, 63-17102, 5-9469, and 2001-335717 can be used. The compounds described in Japanese Patent Application Publication No. 2003-128669, Japanese Patent Application Publication No. 2004-091497, Japanese Patent Application Publication No. 2007-156395, Japanese Patent Application Publication No. 2008-094873, Japanese Patent Application Publication No. 2008-094986, Japanese Patent Application Publication No. 2008-095007, Japanese Patent Application Publication No. 2008-195916, and Japanese Patent No. 4585781, etc., can be used alone or in combination of two or more.

[0347] From the viewpoint of improved dispersibility, the content of the pigment derivative relative to 100 parts by weight is preferably 0.5 parts by weight or more, more preferably 1 part by weight or more, and most preferably 3 parts by weight or more. Furthermore, from the viewpoint of heat resistance and lightfastness, it is preferably 40 parts by weight or less, and more preferably 35 parts by weight or less.

[0348] (Resin-type dispersants / surfactants)

[0349] Resin-type dispersants can include dispersants identical to the resin-type dispersant (F) described above. Additionally, surfactants can include surfactants identical to those exemplified in the visible light shielding layer composition described above. When adding a resin-type dispersant and a surfactant, the amount is preferably 0.1 to 55 parts by weight, more preferably 0.1 to 45 parts by weight, relative to 100 parts by weight of the colorant.

[0350] Chain transfer agent

[0351] In addition, the coloring layer composition may contain a chain transfer agent. The chain transfer agent is as described above. The content of the chain transfer agent in the total non-volatile components of the coloring layer composition is preferably 0.5% to 10%, more preferably 1% to 8%.

[0352] Near-infrared absorbing pigments

[0353] Set the shading layer to Figure 4 In the case of the coloring layer 7 shown, which has near-infrared light-shielding properties, the coloring layer composition contains a near-infrared absorbing pigment. As the near-infrared absorbing pigment, the near-infrared absorbing pigment (E) represented by the above general formula (1) is preferred.

[0354] [Substrate]

[0355] The substrate 10 is a substrate having electrodes for driving the organic EL layer, the near-infrared light receiving section, and the near-infrared light emitting section, as well as electrodes for inputting electrical signals from the near-infrared light receiving section; preferably, it is a silicon substrate. As an example, each of the above electrodes is formed in the form of a TFT array.

[0356] [Organic EL layer]

[0357] The organic EL layer 30 is a multilayer structure consisting of a lower electrode, a light-emitting layer, and a transparent electrode, and may also have other layers. As an example of an organic EL layer, a structure in which a lower electrode, an organic layer containing a light-emitting layer, and a transparent electrode are sequentially stacked from the substrate 10 side and hermetically covered by a sealing layer can be described.

[0358] One of the lower electrode and the transparent electrode is the anode, and the other is the cathode; or both can be anodes.

[0359] The anode material can be, for example, nickel, silver, gold, platinum, palladium, selenium, rhodium, ruthenium, iridium, rhenium, tungsten, molybdenum, chromium, tantalum, niobium or their alloys, or tin oxide (SnO2), indium tin oxide (ITO), zinc oxide, titanium oxide, etc.

[0360] The cathode material can be, for example, an alloy of active metals such as Li, Mg, and Ca with metals such as Ag, Al, and In, or a structure formed by stacking these materials. Alternatively, it can be a structure in which a thin layer of active metals such as Li, Mg, and Ca with halogens such as fluorine and bromine or oxygen compounds is inserted between the cathode and the organic layer.

[0361] The organic layer has at least a white luminescent layer, but is typically composed of multiple organic layers. These layers may include charge injection layers such as hole injection layers or electron injection layers, hole transport layers that transport holes to the white luminescent layer, and electron transport layers that transport electrons to the white luminescent layer. The organic layer can be any of any known configurations that include a white luminescent layer.

[0362] The emissive layer can be any known emissive layer that produces white light. White light emission is achieved simply by emitting light in at least three regions: the red region (600nm–780nm), the green region (475nm–600nm), and the blue region (380nm–475nm). The number of emission peaks does not necessarily need to be three or more; for example, even two emission peaks are sufficient as long as the light emits light in the aforementioned regions. However, to obtain wide color reproducibility, it is preferable to use a white emissive layer with three or more emission peaks, preferably with emission peaks in at least one of the aforementioned three color regions.

[0363] The materials constituting this white luminescent layer are not particularly limited as long as they emit fluorescence or phosphorescence. Furthermore, the luminescent material can possess hole transport or electron transport properties. Examples of luminescent materials include: pigment-based materials, metal complex-based materials, and polymer-based materials.

[0364] Examples of pigment-based materials include: cyclopentamine derivatives, tetraphenylbutadiene derivatives, triphenylamine derivatives, oxadiazole derivatives, pyrazoloquinoline derivatives, stilbene derivatives, stilbene aryl derivatives, thiophene derivatives, thiophene ring compounds, pyridine ring compounds, perylene ketone derivatives, perylene derivatives, oligothiophene derivatives, tritrans-butenediamine derivatives, oxadiazole dimers, and pyrazoline dimers.

[0365] Examples of the aforementioned metal complex materials include: aluminum hydroxyquinoline complexes, benzo[a]hydroxyquinoline beryllium complexes, benzo[a]oxazole zinc complexes, benzo[a]thiazole zinc complexes, azomethyl zinc complexes, porphyrin zinc complexes, europium complexes, or metal complexes with Al, Zn, Be, or rare earth metals such as Tb, Eu, Dy in the central metal and oxadiazole, thiadiazole, phenylpyridine, phenylbenzimidazole, and quinoline structures in the ligands.

[0366] Examples of the aforementioned polymeric materials include: polyparaphenylenevinylene derivatives, polythiophene derivatives, polyparaphenylene derivatives, polysilane derivatives, polyacetylene derivatives, polyfluorene derivatives, polyvinylcarbazole derivatives, and polymeric materials formed by polymerizing the aforementioned pigment-based materials and metal complex-based materials.

[0367] Methods for forming the aforementioned white luminescent layer include, for example, vapor deposition, printing, inkjet printing, spin coating, casting, dipping, rod coating, doctor blade coating, roller coating, gravure coating, flexographic printing, spraying, and self-organizing methods (alternating adsorption method, self-organizing monolayer method), etc. Vapor deposition, spin coating, and inkjet printing are particularly preferred. The film thickness of the white luminescent layer is typically around 5 nm to 5 μm.

[0368] Furthermore, the organic EL layer can have a hole injection layer between the white light-emitting layer and the anode. By providing a hole injection layer, the injection of holes into the white light-emitting layer can be stabilized, thereby improving luminous efficiency. The material used for hole injection layers in organic EL devices can be used as the forming material for the hole injection layer. Additionally, the forming material for the hole injection layer can be any material possessing either hole injection capability or electron blocking capability.

[0369] Specifically, materials that can be used to form the hole injection layer include: triazole derivatives, oxadiazole derivatives, imidazole derivatives, polyaryl alkane derivatives, pyrazoline derivatives, pyrazolone derivatives, phenylenediamine derivatives, arylamine derivatives, amino-substituted chalcone derivatives, oxazole derivatives, styrene-anthracene derivatives, fluorenone derivatives, hydrazone derivatives, stilbene derivatives, silazane derivatives, polysilane copolymers, aniline copolymers, and conductive polymer oligomers such as thiophene oligomers.

[0370] In addition, materials that can be used to form the hole injection layer include porphyrin compounds, aromatic tertiary amine compounds, and styrene-based amine compounds. The thickness of the hole injection layer is typically around 5 nm to 1 μm.

[0371] In addition, organic EL layers can have an electron injection layer between the white light-emitting layer and the cathode. By setting an electron injection layer, the injection of electrons into the white light-emitting layer can be stabilized, thereby improving luminous efficiency.

[0372] Materials that can be used to form the electron injection layer include, for example, nitro-substituted fluorene derivatives, anthraquinone dimethane derivatives, diphenylquinone derivatives, thiamethane dioxide derivatives, heterocyclic tetracarboxylic anhydrides such as naphthoperylene, carbodiimides, fluorenemethane derivatives, anthraquinone dimethane and anthrone derivatives, oxadiazole derivatives, thiazole derivatives formed by replacing the oxygen atom of the oxadiazole ring of an oxadiazole derivative with a sulfur atom, quinoxaline derivatives having a quinoxaline ring known as an electron-withdrawing group, metal complexes of 8-hydroxyquinoline derivatives such as tris(8-hydroxyquinoline)aluminum, phthalocyanine, metal phthalocyanine, and stilbene pyrazine derivatives.

[0373] 2. Manufacturing method of organic EL display device

[0374] The method for manufacturing an organic EL display device disclosed herein is characterized by the fact that the coloring layer, the visible light shielding layer, and the near-infrared light shielding layer are all formed at a temperature below 120°C. According to this manufacturing method, even when a color filter is directly formed on the organic EL element, thermal damage to the organic EL element can be suppressed. Furthermore, since the process of bonding the organic EL element and the color filter together is unnecessary, positional misalignment can be suppressed.

[0375] As a specific example of a method for manufacturing an organic EL display device, firstly, a laminated substrate is prepared, comprising a near-infrared light receiving portion, a lower electrode, a light-emitting layer, and a transparent electrode on a substrate. The method for preparing this laminated substrate is not particularly limited, and it can be manufactured using known processes. A sealing layer and / or an adhesive layer may also be formed on the transparent electrode. The sealing layer can use a known curable resin, preferably an active energy ray curable resin, and may also use a thermosetting resin. As for the active energy ray curable resin, there is no particular limitation, but an acrylic resin that exhibits sensitivity to i-rays (wavelength 365 nm) is preferred. By forming the sealing layer, the surface on which the color filter is formed can be planarized.

[0376] Color filters are formed directly on transparent electrodes, sealing layers, or adhesive layers. Photolithography is preferred for forming color filters. In the case of photolithography, the aforementioned compositions for visible light shielding layers, near-infrared light shielding layers, and compositions for red, green, and blue color layers are prepared separately. Additionally, a photosensitive composition for a black matrix can also be prepared.

[0377] As an example, firstly, a visible light shielding layer composition is applied to form a coating film, which is then exposed, developed, and cured by heat to form a patterned visible light shielding layer. Next, a first-coloring layer composition is applied to form a coating film, which is then exposed, developed, and cured by heat to form a first-coloring layer. The second and third coloring layer compositions are then applied in the same manner to form a three-coloring layer. Next, a near-infrared shielding layer composition is applied to form a coating film, which is then exposed, developed, and cured by heat to form a patterned near-infrared shielding layer on the colored layers, resulting in a color filter.

[0378] The above-mentioned coating methods can be appropriately selected from known methods such as spraying, dip coating, bar coating, roller coating, and spin coating.

[0379] The exposure methods described above can be exemplified by using ultraviolet light or electron beams, such as low-pressure mercury lamps, high-pressure mercury lamps, or metal halide lamps, as a light source, and exposing a mask with a predetermined pattern to light. By using a developing solution such as an alkaline developer to remove the uncured photosensitive composition, a filter on the pattern can be obtained.

[0380] From the viewpoint of protecting the organic EL layer, the above-mentioned heat curing temperature is preferably below 120°C, more preferably below 100°C. By using the photosensitive composition, sufficient curing can be achieved even at low temperatures below 120°C.

[0381] The film thickness of each color filter is preferably 0.1 to 5 μm, more preferably 0.5 μm to 2.0 μm, and even more preferably 1.0 to 2.0 μm.

[0382] Through the above, an organic EL display device with high brightness, high resolution, and the ability to suppress driving power can be obtained.

[0383] [Examples of manufacturing visible light shielding layers and near-infrared light shielding layers]

[0384] The following describes embodiments of the visible light shielding layer and the near-infrared light shielding layer, illustrating manufacturing examples. It should be noted that "parts" and "%" in the manufacturing examples refer to "parts by weight" and "% by weight," respectively. Additionally, "PGMAC" refers to methoxypropyl acetate. Furthermore, the method for determining the weight-average molecular weight (Mw) of the resin is as follows.

[0385] (Weight-average molecular weight (Mw) of the resin)

[0386] The weight-average molecular weight (Mw) of the resin was determined using a TSKgel column (manufactured by Tosoh Corporation) with a GPC (manufactured by Tosoh Corporation, HLC-8120GPC) equipped with an RI detector and THF as the developing solvent. This was converted from the weight-average molecular weight (Mw) of polystyrene.

[0387] [Preparation of the composition for visible light shielding layer]

[0388] <Preparation of Adhesive Resin Solution>

[0389] (Preparation of adhesive resin solution 1)

[0390] 196 parts of cyclohexanone were added to a reaction vessel equipped with a thermometer, cooling tube, nitrogen inlet tube, dropper, and stirrer on a separable four-necked flask. The mixture was heated to 80°C, and the reaction vessel was purged with nitrogen. Then, over 2 hours, a mixture of 20.0 parts benzyl methacrylate, 17.2 parts n-butyl methacrylate, 12.9 parts 2-hydroxyethyl methacrylate, 12.0 parts methacrylic acid, 20.7 parts p-cumylphenol ethylene oxide modified acrylate ("ARONIX M110" manufactured by Toa Synthetic Co., Ltd.), and 1.1 parts 2,2'-azobisisobutyronitrile was added dropwise and polymerized. After the addition was complete, the reaction was continued for 3 hours, and then cooled to terminate the reaction.

[0391] After cooling to room temperature, approximately two samples of the resin solution were taken. The non-volatile components were determined by heating and drying at 180°C for 20 minutes. PGMAC was added to achieve a non-volatile component content of 20% by weight, thus preparing adhesive resin solution 1. It should be noted that the weight-average molecular weight (Mw) was 26,000.

[0392] <Methods for Manufacturing Micronized Pigments>

[0393] (Blue micronized pigment (B1))

[0394] 200 parts of phthalocyanine blue pigment CI Pigment Blue 15:6 (“LIONOLBLUE ES” manufactured by Toyo Color Co., Ltd., hereinafter referred to as PB15:6), 1400 parts of sodium chloride, and 360 parts of diethylene glycol were added to a 1-gallon stainless steel kneader (manufactured by Inoue Seisakusho Co., Ltd.) and kneaded at 80°C for 6 hours. Next, the kneaded mixture was added to 8000 parts of warm water and stirred at 80°C for 2 hours to form a slurry. After repeated filtration and washing with water to remove sodium chloride and diethylene glycol, the mixture was dried at 85°C for 24 hours to obtain a finely refined blue pigment (B1).

[0395] (Yellow micronized pigment (Y1))

[0396] 100 parts of isoindolinone-based yellow pigment CI Pigment Yellow 139 (BASF's "PALIOTOLYELLOW D1819", hereinafter referred to as PY139), 800 parts of pulverized salt, and 180 parts of diethylene glycol were added to a 1-gallon stainless steel kneader (Inoue Manufacturing Co., Ltd.) and kneaded at 70°C for 4 hours. The mixture was then added to 3000 parts of warm water and stirred at a high speed for about 1 hour while heating to approximately 80°C to form a slurry. After repeated filtration and washing with water to remove salt and solvent, the slurry was dried at 80°C for 24 hours to obtain 96 parts of finely refined yellow pigment (Y1).

[0397] (Miniature purple pigment (V1))

[0398] 200 parts of dioxazine-based purple pigment CI Pigment Violet 23 (“LIONOGEN VIOLET RL” manufactured by Toyo Color Co., Ltd., hereinafter referred to as PV23), 1400 parts of sodium chloride, and 360 parts of diethylene glycol were added to a 1-gallon stainless steel kneader (manufactured by Inoue Seisakusho Co., Ltd.) and kneaded at 80°C for 6 hours. Next, the kneaded mixture was placed in 8000 parts of warm water and heated to 80°C while stirring for 2 hours to form a slurry. After repeated filtration and washing with water to remove sodium chloride and diethylene glycol, the mixture was dried at 85°C for 24 hours to obtain a dioxazine-based refined purple pigment (V1).

[0399] <Methods for manufacturing pigment dispersions>

[0400] (Preparation of pigment dispersion (BP-1))

[0401] After thoroughly mixing the following mixture, disperse it for 5 hours in a paintshaker SO400 (Skandex) using 1 mm diameter zirconia beads. Then add 30.0 parts of methoxypropyl acetate and filter through a 5 μm filter to obtain the pigment dispersion (BP-1).

[0402] Blue micronized pigment (B1): 14.0 parts

[0403] Adhesive resin solution 1:30.0 parts

[0404] Methoxypropyl acetate: 26.0 parts

[0405] (Preparation of pigment dispersions (YP1, VP-1))

[0406] Except for changing the composition and proportions (parts by weight) as recorded in Table 1, pigment dispersions (YP1, VP-1) were obtained in the same manner as pigment dispersion (BP-1). It should be noted that the proportions in the table are parts by weight.

[0407]

[0408] <Preparation of the composition (BLK-1) for visible light shielding>

[0409] The following mixture (total 100 parts) was stirred and mixed evenly, and then filtered through a 1.0 μm filter to obtain a composition for a visible light shielding layer (BLK-1).

[0410] Pigment dispersion (BP-1): 22.5 parts

[0411] Pigment dispersion (VP-1): 17.4 parts

[0412] Pigment dispersion (YP-1): 24.4 parts

[0413] Adhesive resin solution 1:0.9 parts

[0414] Photopolymerizable monomer A: 4.2 parts

[0415] ARONIX M-309 manufactured by Dong-A Gosei Corporation

[0416] Photopolymerization initiator A: 0.7 parts

[0417] The "Irgacure OXE-02" manufactured by BASF

[0418] Leveling agent solution: 1.0 part

[0419] "FZ-2122" manufactured by Dow Toray Co., Ltd. (a solution obtained by diluting 1 part (100% by weight of non-volatile components) of cyclohexanone with 99 parts of cyclohexanone)

[0420] Solvent: 28.9 parts

[0421] Methoxypropyl acetate

[0422] [Preparation of a composition for near-infrared light-shielding layers]

[0423] <Method for manufacturing near-infrared absorbing pigment (E)>

[0424] 40.0 parts of 1,8-diaminonaphthalene, 25.1 parts of cyclohexanone, and 0.087 parts of p-toluenesulfonic acid monohydrate were mixed in 400 parts of toluene and heated under nitrogen atmosphere with stirring, reacting under reflux for 3 hours. It should be noted that the water generated during the reaction was removed from the system by azeotropic distillation.

[0425] After the reaction was complete, toluene was distilled to obtain a dark brown solid. This solid was extracted with acetone and purified by recrystallization from a mixed solvent of acetone and ethanol. The resulting brown solid was dissolved in a mixed solvent of 240 parts toluene and 160 parts n-butanol. Then, 13.8 parts of 3,4-dihydroxy-3-cyclobutene-1,2-dione were added, and the mixture was heated and stirred under nitrogen atmosphere and reacted under reflux for 8 hours. It should be noted that the water generated during the reaction was removed from the reaction system by azeotropic distillation.

[0426] After the reaction was complete, the solvent was distilled, and 200 parts of hexane were added while stirring the resulting reaction mixture. The resulting dark brown precipitate was filtered and washed successively with hexane, ethanol, and acetone, and dried under reduced pressure to obtain 61.9 parts of near-infrared absorbing pigment (E) (yield: 92%). It should be noted that the compounds were identified by TOF-MS mass spectrometry.

[0427] [Chemical Formula 11]

[0428] Near-infrared absorbing pigments (E)

[0429]

[0430] <Method for manufacturing resin-type dispersant (F)>

[0431] (Resin-type dispersant (F) solution): Graft copolymer

[0432] 150 parts of PGMAC and 100 parts of n-butyl acrylate were added to a reaction vessel equipped with a gas inlet tube, thermometer, capacitor, and stirrer, and the mixture was purged with nitrogen. The reaction vessel was heated to 80°C, and a solution of 0.5 parts of 2,2'-azobisisobutyronitrile dissolved in 4 parts of 2-mercaptoethanol was added. The reaction was allowed to proceed for 10 hours. The reaction was confirmed by non-volatile component analysis to be at least 95% complete, yielding a reaction product (dispersant 1a) with a number average molecular weight of 3900 and a weight average molecular weight of 7900.

[0433] 7.9 parts of 2-methacryloyloxyethyl isocyanate, 0.05 parts of methyl dibutyltin dilaurate, and 0.05 parts of methyl hydroquinone were added to the above reaction product. The reaction vessel was heated to 100°C and reacted for 4 hours. Then it was cooled to 40°C to obtain the reaction product (resin-type dispersant 1b solution).

[0434] 122 parts of PGMAC were added to a reaction vessel equipped with a gas inlet pipe, capacitor, stirring blade, and thermometer, and the temperature was raised to 100°C while nitrogen replacement was performed. 262.5 parts of the above reaction product (resin-type dispersant 1b solution), 150 parts of pentamethylpiperidin methacrylate (manufactured by ADEKA, ADK STAB LA-82), 10 parts of hydroxyethyl methacrylate, and 4 parts of 2,2'-azobis(2,4-dimethylbutyronitrile) were added to a dropping tank, stirred until homogeneous, and then added dropwise to the reaction vessel for 2 hours to carry out the reaction. The reaction was then continued at this temperature for 3 hours, followed by cooling to terminate the reaction. After sampling to confirm the non-volatile components, PGMAC was added to adjust the non-volatile component to 40% by mass. This yielded a resin-type dispersant (F) solution of a graft copolymer with tertiary amines, having an amine value of 42 mg KOH / g per non-volatile component and a weight-average molecular weight (Mw) of 23,500.

[0435] <Method for manufacturing adhesive resin (G) solution>

[0436] 70.0 parts of cyclohexanone were added to a reaction vessel equipped with a thermometer, cooling pipe, nitrogen inlet pipe, and stirrer on a separable four-necked flask. The temperature was raised to 80°C, and the reaction vessel was purged with nitrogen. Then, a mixture of 12.4 parts of n-butyl methacrylate, 4.6 parts of 2-hydroxyethyl methacrylate, 4.3 parts of methacrylic acid, 7.3 parts of p-cumylphenol ethylene oxide modified acrylate ("ARONIX M110" manufactured by Toa Synthetic Co., Ltd.) (the weight ratio of n-butyl methacrylate / 2-hydroxyethyl methacrylate / methacrylic acid / p-cumylphenol ethylene oxide modified acrylate was 10.5 / 15.5 / 17.1 / 25.0), and 0.7 parts of 2,2'-azobisisobutyronitrile was added dropwise over 2 hours. After the addition was completed, the reaction was continued for 3 hours, and then the reaction was stopped by cooling. After cooling to room temperature, about 2g of resin solution was sampled and dried at 180℃ for 20 minutes to determine the non-volatile components. Propylene glycol monoethyl ether acetate was added to make the non-volatile components 20% by weight to prepare an adhesive resin (G) solution with an acid value of 110mgKOH / g and a weight-average molecular weight (Mw) of 10,000b.

[0437] (Near-infrared light-shielding dispersion (E-1))

[0438] After the mixture of the following components was stirred and mixed evenly, it was dispersed in an Eiger mill for 3 hours using zirconia beads with a diameter of 0.5 mm, and then filtered through a 0.5 μm filter to prepare a near-infrared light-shielding dispersion (E-1) with 20.0% non-volatile components.

[0439] Near-infrared absorbing pigment (E): 12.5 parts

[0440] Resin-type dispersant (F) solution: 9.5 parts

[0441] Adhesive resin (G) solution: 18.5 parts

[0442] Methoxypropyl acetate: 59.5 parts

[0443] <Preparation of Compositions for Near-Infrared Shielding Layers>

[0444] After the following mixture was stirred and mixed evenly, it was filtered through a 1.0 μm filter to obtain a near-infrared light-shielding layer composition (IR-1).

[0445] Near-infrared light-shielding dispersion (E-1): 27.5 parts

[0446] Adhesive resin (G) solution: 17.8 parts

[0447] Photopolymerizable monomer (ARONIX M-309 manufactured by Toa Synthetic Co., Ltd.): 6.8 parts

[0448] Photopolymerization initiator (oxime ester-based photopolymerization initiator "OXE-02" manufactured by BASF): 0.6 parts

[0449] Leveling agent

[0450] "FZ-2122" manufactured by Dow Toray Co., Ltd. (a solution obtained by diluting 1 part (100% by weight of non-volatile components) of cyclohexanone with 99 parts of cyclohexanone)

[0451] Solvent: 1.0 part

[0452] Methoxypropyl acetate: 43.3 parts

[0453] [Manufacturing Example 1: Fabrication of a Visible Light Blocking Layer]

[0454] The visible light shielding layer composition (BLK-1) obtained was coated onto a glass substrate with a length of 100 mm × width of 100 mm and a thickness of 0.7 mm using a spin coater. Then, it was heated at 100°C for 15 minutes and cooled to obtain a test substrate 1 with a film thickness of 1.0 μm.

[0455] <Measurement of Light Transmittance of Visible Light Blocking Layer>

[0456] For the obtained experimental substrate 1, the light transmittance at wavelengths of 400–1000 nm was measured using a microspectrophotometer (“U-3900” manufactured by Hitachi High-Tech Science Corporation). Figure 9The spectral data are shown. In addition, Table 2 shows the maximum transmittance of light in the wavelength range of 400–620 nm (Tmax(400–620 nm)), the maximum transmittance of light in the wavelength range of 620–730 nm (Tmax(620–730 nm)), and the minimum transmittance of light in the wavelength range of 830–1000 nm (Tmin(830–1000 nm)).

[0457]

[0458] [Manufacturing Example 2: Fabrication of a Near-Infrared Absorbing Layer]

[0459] The obtained near-infrared light-shielding layer composition (IR-1) was coated onto a glass substrate with a length of 100 mm × width of 100 mm and a thickness of 0.7 mm using a spin coater. Then, it was heated at 100°C for 15 minutes and cooled to obtain a test substrate 2 with a film thickness of 0.7 μm.

[0460] <Measuring the light transmittance of the near-infrared absorption layer>

[0461] For the obtained experimental substrate 2, the light transmittance at wavelengths of 400–1000 nm was measured using a microspectrophotometer (“U-3900” manufactured by Hitachi High-Tech Science Corporation). Figure 10 The spectral data are shown. Additionally, Table 3 shows the average transmittance, maximum absorption wavelength, and transmittance for wavelengths from 450 to 600 nm.

[0462]

[0463] As shown in Table 2 and Figure 9 As shown, the visible light blocking layer of Manufacturing Example 1 exhibits excellent visible light blocking properties and excellent near-infrared transmittance. Furthermore, as shown in Table 3 and... Figure 10 As shown, the near-infrared light-shielding layer of Manufacturing Example 2 exhibits excellent near-infrared light-shielding properties and excellent visible light transmittance. The organic EL display device of this disclosure is formed by combining such a visible light-shielding layer and a near-infrared light-shielding layer. Figures 1-5 Such a layered filter can suppress light that causes noise from entering the near-infrared light receiver while maintaining the high brightness, high resolution, and color reproduction of the display device.

[0464] Industrial applicability

[0465] The organic EL display device disclosed herein has high brightness, high resolution, and excellent color reproduction. It can suppress driving power and achieve miniaturization and weight reduction, thus making it suitable for Micro-ORED. For example, it can be used as a display device for electronic devices such as smart glass, head-mounted displays, and electronic viewfinders.

[0466] This application claims priority based on Japanese Special Application No. 2023-149493, filed on September 14, 2023, the entire disclosure of which is incorporated herein by reference.

[0467] Explanation of symbols

[0468] 4: Color layer, 4B: Blue layer, 4G: Green layer, 4R: Red layer, 5: Visible light shielding layer, 6: Near-infrared light shielding layer, 7: Color layer, 8: Shielding layer, 10: Substrate, 20: Coating film, 21: Near-infrared light receiver, 22: Near-infrared light emitter, 30: Organic EL layer, 40: Color filter, 50: Wiring layer, 61: Near-infrared, 62: Visible light, 63: Near-infrared, 64: Near-infrared, 100: Organic EL display device.

Claims

1. An organic EL display device, The substrate sequentially comprises a near-infrared light receiver, a lower electrode, a light-emitting layer, a transparent electrode, and a color filter. The color filter has a patterned coloring layer and a visible light blocking layer disposed on the near-infrared light receiving part. The coloring layer has a near-infrared light-shielding layer, which is located between the coloring layer and the transparent electrode, or is integrated with the coloring layer.

2. The organic EL display device according to claim 1, A near-infrared emitting portion is also provided between the substrate and the lower electrode. The color filter has a visible light shielding layer on the near-infrared emitting part.

3. The organic EL display device according to claim 1, wherein, The near-infrared light-shielding layer is present on the colored layer.

4. The organic EL display device according to claim 1, wherein, The thickness of the visible light shielding layer is greater than the combined thickness of the coloring layer and the near-infrared light shielding layer.

5. The organic EL display device according to claim 1, wherein, The maximum light transmittance of the visible light shielding layer in the wavelength range of 400-620nm is less than 5%, the maximum light transmittance in the wavelength range of 620-730nm is less than 13%, and the minimum light transmittance in the wavelength range of 830-1000nm is more than 85%.

6. The organic EL display device according to claim 3, wherein, The near-infrared light-shielding layer has an average light transmittance of over 80% in the wavelength range of 450–600 nm, and a maximum absorption wavelength in the wavelength range of 780–1000 nm, with a light transmittance of less than 10% at the maximum absorption wavelength.

7. The organic EL display device according to claim 1, wherein, The visible light shielding layer is a cured product of a composition for visible light shielding layers, which contains an organic pigment (A), a binder resin (B), a photopolymerization initiator (C), and a photopolymerizable compound (D). The organic pigment (A) comprises blue pigment, yellow pigment, and purple pigment. The proportions of organic pigments are based on the organic pigment (A), with blue pigment at 32-45% by weight, yellow pigment at 30-40% by weight, and purple pigment at 20-30% by weight.

8. The organic EL display device according to claim 1, wherein, The near-infrared light-shielding layer is a cured product of a near-infrared light-shielding layer composition, which contains a near-infrared absorbing pigment (E) represented by the following general formula (1), a resin-type dispersant (F) with an amine value of 20 mg KOH / g to 200 mg KOH / g, and an adhesive resin (G) with a weight-average molecular weight of 5,000 to 40,000 and an acid value of 100 mg KOH / g to 130 mg KOH / g. [Chemical Formula 1] X 1 ~X 10 Each of these groups independently represents a hydrogen atom, an alkyl group that may have substituents, an alkenyl group that may have substituents, an aryl group that may have substituents, an aralkyl group that may have substituents, an alkoxy group that may have substituents, an aryloxy group that may have substituents, an amino group, a substituted amino group, a sulfonyl group, and -SO2NR. 1 R 2 -COOR 1 -CONR 1 R 2 Nitro, cyano, or halogen atom, X 1 ~X 10 They can also bond together to form a ring. R 1 and R 2 Each can independently represent a hydrogen atom or an alkyl group that may have substituents.

9. A method for manufacturing an organic EL display device, which is the method for manufacturing an organic EL display device according to any one of claims 1 to 8, wherein, The coloring layer, the visible light shielding layer, and the near-infrared light shielding layer are formed at temperatures below 120°C.

10. A method for manufacturing an organic EL display device according to claim 9, comprising: Prepare a laminated substrate having a near-infrared light receiver, a lower electrode, a light-emitting layer, and a transparent electrode on the substrate. and A coating film of a coloring layer composition is formed on the laminated substrate.

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