Organic el display and method for manufacturing the same

Abstract

To provide an organic EL display with an optical sensor, to suppress noise to the optical sensor, and to enable high resolution, and a method for manufacturing the same.SOLUTION: An organic EL display has a near-infrared light receiving part, a bottom electrode, an emission layer, a transparent electrode, and a color filter on the substrate, in this order, the color filter has a patterned coloring layer and a visible light shading layer on the near-infrared light receiving part, and a near-infrared light shielding layer is on the coloring layer, between the coloring layer and the transparent electrode, or integrated with the coloring layer.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an organic electroluminescence display device and a manufacturing method thereof. [Background technology]

[0002] In recent years, in electronic devices such as mobile phones and personal digital assistants, the development and mass production of display devices using organic electroluminescence (OLED), a self-emitting element, has progressed in order to meet the demands for thinner, lighter and curved displays, which are difficult to achieve with the currently mainstream liquid crystal display devices. Among these, there are high expectations for their application to high-definition, small displays of around 0.5 inches (hereinafter referred to as microdisplays) such as head-mounted displays and electronic viewfinders, in order to take advantage of their thin and lightweight characteristics. Meanwhile, there has been an increasing demand for display devices that realize biometric authentication technology that uses automated devices to extract specific human biometric information and behavioral characteristic information to authenticate individuals, mainly in the fields of finance, healthcare, mobile, etc. In addition, there is a demand for head-mounted displays to be equipped with eye-tracking functions to improve VR sickness caused by out-of-focus images and to enhance the sense of immersion.

[0003] Patent Document 1 discloses an organic light-emitting diode (OLED) panel incorporating a near-infrared (NIR) organic photosensor, the OLED panel including a substrate, an OLED stack disposed on the substrate and emitting visible light, and an NIR photosensor stack disposed between the substrate and the OLED stack and including an NIR light-emitting portion that emits NIR light and an NIR light-receiving portion that receives the NIR light. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-033071 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the OLED panel of Patent Document 1, as described below, visible light may enter the NIR organic light receiving section. Also, light emitted from the NIR organic light emitting section may pass through the pixel section and be emitted. This light may become noise and degrade the performance of the infrared sensor. In order to achieve higher resolution, further miniaturization of pixel size is required, and pixel formation using a color filter method is being considered because of its advantage in forming fine pixels.

[0006] In consideration of the above problems, the present disclosure has an object to provide an organic EL display device that includes an optical sensor, suppresses noise in the optical sensor, and enables high resolution, and a manufacturing method thereof. [Means for solving the problem]

[0007] The organic EL display device according to the present disclosure is A near-infrared receiving section, a lower electrode, a light-emitting layer, a transparent electrode, and a color filter are disposed on a substrate in this order; the color filter has a patterned colored layer and a visible light blocking layer provided on the near-infrared light receiving section, A near-infrared light-shielding layer is provided on the colored layer, between the colored layer and the transparent electrode, or integrated with the colored layer.

[0008] One embodiment of the organic EL display device is A near-infrared light emitting portion is further provided between the substrate and the lower electrode, The color filter has a visible light blocking layer on the near-infrared light emitting portion.

[0009] One aspect of the organic EL display device has the near-infrared light-shielding layer on the colored layer.

[0010] In one aspect of the organic electroluminescence display device, the thickness of the visible light blocking layer is greater than the total thickness of the colored layer and the near-infrared light blocking layer.

[0011] In one embodiment of the organic EL display device, the visible light-shielding layer has a maximum light transmittance of 5% or less in a wavelength range of 400 to 620 nm, a maximum light transmittance of 13% or less in a wavelength range of 620 to 730 nm, and a minimum light transmittance of 85% or more in a wavelength range of 830 to 1000 nm.

[0012] In one embodiment of the organic EL display device, the near-infrared ray shielding layer has an average light transmittance of 80% or more in a wavelength range of 450 to 600 nm, has a maximum absorption wavelength in a wavelength range of 780 to 1000 nm, and has a light transmittance of 10% or less at the maximum absorption wavelength.

[0013] One embodiment of the organic EL display device is such that the visible light-shielding layer is a cured product of a composition for visible light-shielding layer, the composition containing an organic pigment (A), a binder resin (B), a photopolymerization initiator (C) and a photopolymerizable compound (D), The organic pigment (A) contains a blue pigment, a yellow pigment, and a purple pigment, The content of the organic pigments is, based on the organic pigment (A), 32 to 45% by weight for the blue pigment, 30 to 40% by weight for the yellow pigment, and 20 to 30% by weight for the violet pigment.

[0014] In one embodiment of the organic EL display device, the near-infrared light-shielding layer is a cured product of a composition for near-infrared light-shielding layer, which contains a near-infrared absorbing dye (E) represented by the following general formula (1), a resin-type dispersing agent (F) having an amine value of 20 mgKOH / g to 200 mgKOH / g, and a binder resin (G) having a weight-average molecular weight of 5,000 to 40,000 and an acid value of 100 mgKOH / g to 130 mgKOH / g: [ka] X 1 ~X 10each independently represents a hydrogen atom, an alkyl group which may have a substituent, an alkenyl group which may have a substituent, an aryl group which may have a substituent, an aralkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryloxy group which may have a substituent, an amino group, a substituted amino group, a sulfo group, -SO 2 NR 1 R 2 , -COOR 1 , -CONR 1 R 2 , a nitro group, a cyano group, or a halogen atom; X 1 ~X 10 may be bonded to each other to form a ring. R 1 and R 2 each independently represents a hydrogen atom or an alkyl group which may have a substituent.

[0015] The method for producing an organic EL display device according to the present disclosure includes the steps of: The colored layer, the visible light shielding layer, and the near-infrared light shielding layer are formed at a temperature of 120° C. or less.

[0016] One aspect of the method for producing the organic EL display device includes preparing a laminated substrate including a near-infrared receiving unit, a lower electrode, a light-emitting layer, and a transparent electrode on a substrate; The method includes forming a coating film of a color layer composition on the laminate substrate. Effect of the Invention

[0017] According to the present disclosure, it is possible to provide an organic EL display device that includes an optical sensor, suppresses noise in the optical sensor, and enables high resolution, and a manufacturing method thereof. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a schematic cross-sectional view showing one embodiment of the present organic EL display device. [Diagram 2] FIG. 1 is a schematic cross-sectional view showing one embodiment of the present organic EL display device. [Diagram 3]FIG. 1 is a schematic cross-sectional view showing one embodiment of the present organic EL display device. [Figure 4] FIG. 1 is a schematic cross-sectional view showing one embodiment of the present organic EL display device. [Diagram 5] FIG. 1 is a schematic cross-sectional view showing one embodiment of the present organic EL display device. [Figure 6] FIG. 1 is a schematic front view showing one embodiment of the present organic EL display device. [Figure 7] FIG. 1 is a schematic front view showing one embodiment of the present organic EL display device. [Figure 8] FIG. 1 is a schematic front view showing one embodiment of the present organic EL display device. [Figure 9] 1 shows the transmittance spectrum of the visible light-shielding layer of Production Example 1. [Figure 10] 1 shows a transmittance spectrum of the near-infrared shading layer of Production Example 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] An organic EL display device and a method for manufacturing the same will be described below. In order to clarify the explanation, the following description and drawings are appropriately simplified. For the sake of explanation, the scale of each component in the drawings may differ significantly. In each drawing, the same elements are given the same reference numerals, and duplicate explanations are omitted as necessary. In each drawing, the surface on the +Z side is the display surface (front) of the organic EL display device. Terms used in this specification that specify shapes, geometric conditions, and the degree thereof, such as "parallel," "perpendicular," "orthogonal," and "identical," are not to be construed as being limited to their strict meanings, but should be interpreted to include the range within which similar functions can be expected. In the present disclosure, the use of "to" indicating a range of numerical values ​​means that the numerical values ​​before and after it are included as the lower limit and upper limit. In the present disclosure, "(meth)acrylate" is a general term for acrylate and methacrylate, and "(meth)acrylic" and the like are equivalent to this. Also, in this disclosure, "CI" means Color Index (CI).

[0020] 1.Organic EL display device The configuration of the organic EL display device of the first embodiment will be described with reference to FIG. 1. The organic EL display device 100 shown in the example of FIG. 1 has a near-infrared receiving section 21, an organic EL layer 30, and a color filter 40 on a substrate 10 in this order. The color filter 40 has a patterned colored layer 4 (4R, 4G, 4B), a visible light shielding layer 5 provided on the near-infrared receiving section 21, and a near-infrared light shielding layer 6 provided on the colored layer 4. Although not shown, the organic EL layer 30 has a lower electrode, a light-emitting layer, and a transparent electrode. In the example of FIG. 1, the substrate 10 has a wiring layer 50. The wiring layer 50 has electrodes formed on the substrate, and wiring electrically connected to the near-infrared receiving section 21 and the organic EL layer 30. In addition, the wiring layer 50, the visible light shielding layer 5, and the color filter 40 may have a coating film 20 for the purpose of flattening and insulating the layers. In the example of FIG. 1, the visible light shielding layer 5 has a coating film 20.

[0021] The organic EL display device of the first embodiment has a visible light blocking layer 5 on the near-infrared light receiving section 21, and a near-infrared light blocking layer 6 on the colored 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, the incidence of light that causes noise in the near-infrared light receiving section 21 is suppressed, and near-infrared light 61 with a small incident angle can be efficiently received. In the organic EL display device of the first embodiment, the optical sensor is used as a transmissive optical sensor, a reflective optical sensor that utilizes an external light source, or the like.

[0022] Next, the configuration of an organic EL display device according to a second embodiment will be described with reference to Fig. 2. The organic EL display device 100 shown in the example of Fig. 2 has a near-infrared receiving section 21, a near-infrared emitting section 22, an organic EL layer 30, and a color filter 40, in this order, on a substrate 10. The color filter 40 has a patterned colored layer 4 (4R, 4G, 4B), a visible light blocking layer 5 provided on the near-infrared receiving section 21, and a near-infrared ray blocking layer 6 provided on the colored layer 4.

[0023] The organic EL display device of the second embodiment has the configuration of the first embodiment, and further has a visible light blocking layer 5 on the near-infrared light emitter 22 and a near-infrared light blocking layer 6 on the colored layer 4. Therefore, among the near-infrared rays emitted from the near-infrared light emitter 22, those with a large emission angle are absorbed by the near-infrared light blocking layer 6, and only the near-infrared rays 64 with a small emission angle are emitted. As a result, the near-infrared light receiving unit 21 can efficiently receive the light reflected from the specimen. In the organic EL display device according to the second embodiment, the optical sensor is mainly used as a reflective optical sensor.

[0024] Unless otherwise specified, the following description applies to the organic EL display devices of the first and second embodiments. Figures 3 and 4 show modified examples of the color filter 40. The organic EL display device 100 in Figure 3 includes a near-infrared light shielding layer 6 between a transparent electrode and a colored layer 4 included in the organic EL layer 30. The organic EL display device 100 in Figure 4 also includes a colored layer 7 having near-infrared light shielding properties, in which the colored layer 4 and the near-infrared light shielding layer 6 are integrated together. The organic EL display device shown in Figures 3 and 4 also achieves the same effects as the organic EL display devices of the first and second embodiments.

[0025] FIG. 5 shows another modified example of the color filter 40. In the color filter 40 of FIG. 5, the thickness of the visible light shielding layer 5 is greater than the total thickness of the colored layer 4 and the near-infrared light shielding layer 6 (in the case of the colored layer 7 having near-infrared light shielding properties, the thickness of the colored layer 7). With this configuration, the visible light shielding layer 5 is not covered with the colored layers (4, 7) or the near-infrared light shielding layer 6 during manufacturing, and the stability of the quality of the present organic EL display device is improved. The thickness of the visible light shielding layer 5 may be, for example, 10 to 1000 nm thicker than the total thickness of the colored layer 4 and the near-infrared light shielding layer 6, preferably 20 to 200 nm thicker, and more preferably 25 to 150 nm thicker.

[0026] Next, the arrangement of the visible light blocking layer 5 will be described with reference to Figs. 6 to 8. Figs. 6 to 8 are front views (viewed from +Z) of the organic EL display device 100. The visible light blocking layer 5 may be individually arranged on at least a part of the near-infrared light receiving section 21 and the near-infrared light emitting section 22 as shown in Fig. 6. The visible light blocking layer 5 may be formed in a lattice pattern as shown in Fig. 7. The visible light blocking layer 5 in Fig. 7 also functions as a black matrix. Furthermore, as shown in Fig. 8, a black matrix may be formed by combining a plurality of visible light blocking layers 5 with another light blocking layer 8.

[0027] The organic EL display devices of the first and second embodiments may further include other configurations such as other layers as necessary. Each configuration of the organic EL display device will be described in more detail below.

[0028] [Near-infrared receiving section] The near-infrared receiving unit 21 is a part that converts near-infrared rays into an electric signal. One example of the near-infrared receiving unit is a photodiode, and a photodiode that receives near-infrared rays with a wavelength of 800 to 1500 nm is preferable. At least one near-infrared receiving unit may be provided in the organic EL display device, but it is preferable to have multiple near-infrared receiving units, and it is more preferable to have them arranged in a lattice pattern. By providing multiple near-infrared receiving units, it is possible to obtain a mapping image of the measurement target (for example, a fingerprint, a retina, a face, etc.), which can be used for biometric authentication, etc.

[0029] [Near infrared light emitting part] The near-infrared light emitting section 22 is a section that emits near-infrared light. One example of the near-infrared light emitting section is a light emitting diode, and a light emitting diode that emits near-infrared light with a wavelength of 800 to 1500 nm is preferable. At least one near-infrared light emitting section may be provided in the organic EL display device, but it is preferable to have a plurality of near-infrared light emitting sections, and more preferably, they are arranged in a lattice pattern.

[0030] [Color Filter] In the present disclosure, the color filter has a laminate of a colored layer 4 and a near-infrared light-shielding layer 6 arranged in a pattern, or a colored layer 7 having near-infrared light-shielding properties and a visible light-shielding layer 5 provided at the predetermined position. The color filter is arranged directly on the organic EL layer 30 or via another layer.

[0031] <Colored layer> The colored layer 4 has at least a red layer 4R, a green layer 4G, and a blue layer 4B, and may further have a yellow layer, a cyan layer, a magenta layer, a white (colorless) layer, and the like. The pattern arrangement of each colored layer is not particularly limited, but examples thereof include a stripe arrangement, a delta arrangement, a mosaic arrangement, a honeycomb arrangement, etc. A visible light shielding layer 5 is arranged in at least a part of the color filter. A black matrix including the visible light shielding layer 5 may be provided between each colored layer. The area of ​​each colored layer is 1 to 50 μm for high resolution. 2 is preferable, and 1 to 30 μm 2 The thickness of each colored layer is preferably from 0.1 to 5 μm, more preferably from 0.2 to 4 μm, from the standpoint of color reproducibility.

[0032] In order to obtain an organic EL display device with high brightness, high resolution, and excellent color reproducibility, it is preferable that each colored layer has the following spectral characteristics. Red layer: The maximum transmittance of light in the wavelength range of 450nm to 560nm is 0.5% or less, the 50% transmittance wavelength is 593nm to 603nm, and the average transmittance of light in the wavelength range of 600nm to 700nm is 80% or more and 100%. Green layer: The maximum transmittance of light in the wavelength range of 400nm to 470nm is 2% or less, the maximum transmittance of light in the wavelength range of 525 to 535nm is 67% or more, 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. Blue layer: The maximum transmittance of light in the wavelength range of 500 nm to 560 nm is less than 20%.

[0033] <Visible light shielding layer> The visible light shielding layer 5 is a layer that absorbs visible light and preferably transmits near infrared light. The visible light shielding layer 5 preferably has, for example, the following spectral characteristics. -The maximum light transmittance in the wavelength range of 400 to 620 nm is 5% or less. -The maximum light transmittance in the wavelength range of 620~730nm is 13% or less. -Minimum light transmittance in the wavelength range of 830~1000nm is 85% or more.

[0034] <Near infrared ray shielding layer> 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. -Average light transmittance in the wavelength range of 450~600nm is 80% or more. The optical transmittance at the maximum absorption wavelength is 10% or less.

[0035] <Materials of each layer> Next, the materials of each layer constituting the color filter will be described. When the present organic EL display device is used in a high-definition microdisplay with a pixel size of 1 μm to 5 μm, each layer is preferably formed by photolithography because it allows for finer fabrication. In addition, when the organic EL element and the color filter are formed on separate substrates and then bonded together, there is a risk of misalignment, which is particularly significant in microdisplays. Therefore, it is preferable to form the color filter directly on the organic EL element. When forming a color filter using this on-chip method, it is necessary to form a sufficiently hardened layer by baking at 120°C or less due to the heat resistance of the light-emitting layer, etc. The compositions for forming each layer that satisfy these conditions will be described below.

[0036] (1) Composition for visible light shielding layer The composition for a visible light shielding layer contains an organic pigment (A), a binder resin (B), a photopolymerization initiator (C) and a photopolymerizable compound (D), The organic pigment (A) contains a blue pigment, a yellow pigment, and a purple pigment, The content ratio of the organic pigment is preferably 32 to 45% by weight of the blue pigment, 30 to 40% by weight of the yellow pigment, and 20 to 30% by weight of the violet pigment based on the organic pigment (A). The content ratio of each pigment in the organic pigment (A) is more preferably 33 to 38% by weight of the blue pigment, 35 to 40% by weight of the yellow pigment, and 25 to 30% by weight of the violet pigment. By using such a composition, the composition satisfies the above-mentioned spectral characteristics and the above-mentioned film forming conditions.

[0037] (Organic pigment (A)) The organic pigment (A) contains at least a blue pigment, a yellow pigment, and a purple pigment, and may further contain pigments of other colors.

[0038] 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, and 79.

[0039] 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, 133, 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.

[0040] Specific examples of purple pigments include CI Pigment Violet (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, and the like.

[0041] In the organic pigment (A) used in the composition for visible light shielding layer, the blue pigment is preferably CI Pigment Blue 15, 15:1, 15:2, 15:3, 15:4 or 15:6 from the viewpoint of visible light shielding property, and more preferably CI Pigment Blue 15:3 or CI Pigment Blue 15:6. In the organic pigment (A), the yellow pigment is preferably CI Pigment Yellow 83, 117, 129, 138, 139, 150, 154, 155, 180 or 185 from the viewpoint of visible light shielding property, and more preferably CI Pigment Yellow 83, 138, 139, 150 or 185. In the organic pigment (A), the purple pigment is preferably CI Pigment Violet 19 or 23, and more preferably CI Pigment Violet 23, from the viewpoint of visible light blocking properties.

[0042] From the viewpoint of obtaining sufficient light-shielding properties, the total concentration of the organic pigment (A) in the composition for visible light-shielding layer is preferably 10 to 90% by weight, more preferably 15 to 85% by weight, and even more preferably 20 to 80% by weight, based on the non-volatile components in the composition for visible light-shielding layer.

[0043] The organic pigment (A) is preferably used in a finely divided form. The primary particle diameter of the organic pigment (A) is preferably 20 to 100 nm, more preferably 25 to 85 nm. The primary particle diameter of the pigment is measured by a method of directly measuring the size of the primary particles from an electron micrograph of the pigment taken with a TEM (transmission electron microscope). Specifically, the minor axis diameter and major axis diameter of the primary pigment particle are measured, and the average is taken as the particle diameter of the pigment particle. This is measured for 100 or more pigment particles, and the average is taken as the average primary particle diameter.

[0044] (Binder resin (B)) The binder resin (B) contributes to the dispersion stability of the organic pigment (A) and suppresses the aggregation of the organic pigment (A) in the visible light shielding layer. In addition, the use of the binder resin (B) provides excellent developability and shape stability in the photolithography method.

[0045] The binder resin (B) is preferably a thermoplastic resin, and when the visible light shielding layer composition is used as an alkali development type resist, an alkali-soluble resin having an acidic group is preferred. In addition, in order to further improve the photosensitivity, the binder resin (B) may be an active energy ray curable resin having an ethylenically unsaturated double bond. Among them, an alkali-soluble active energy ray curable resin is preferred.

[0046] 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, celluloses, polyethylenes (HDPE, LDPE), polybutadiene, polyimide resins, etc. Among these, acrylic resins are preferred.

[0047] Examples of the acidic group in the alkali-soluble resin include a carboxy group and a sulfo group. Specific examples of the alkali-soluble resin include an acrylic resin having an acidic group, an α-olefin / maleic acid (anhydride) copolymer, a styrene / styrene sulfonic acid copolymer, an ethylene / (meth)acrylic acid copolymer, or an isobutylene / maleic acid (anhydride) copolymer. Among them, an acrylic resin having an acidic group or a styrene / styrene sulfonic acid copolymer is preferred, and an acrylic resin having an acidic group is more preferred from the viewpoint of heat resistance and transparency.

[0048] The alkali-soluble active energy ray-curable resin may be a resin produced by the following method (i) or (ii).

[0049] Method (i): A monomer having an epoxy group is copolymerized with another monomer to obtain a copolymer, and the side-chain epoxy group of the copolymer is subjected to an addition reaction with a carboxylic acid having an ethylenically unsaturated double bond. The resulting hydroxyl group is then reacted with a polycarboxylic acid (anhydride) to introduce an ethylenically unsaturated double bond and a carboxy group.

[0050] Examples of monomers having an epoxy group include glycidyl (meth)acrylate, methyl glycidyl (meth)acrylate, 2-glycidoxyethyl (meth)acrylate, 3,4 epoxybutyl (meth)acrylate, and 3,4 epoxycyclohexyl (meth)acrylate. From the viewpoint of reactivity with a carboxylic acid having an ethylenically unsaturated double bond in the next step, glycidyl (meth)acrylate is preferred.

[0051] Examples of the carboxylic acid having an ethylenically unsaturated double bond include (meth)acrylic acid, crotonic acid, and vinylbenzoic acid.

[0052] The polyvalent carboxylic acid may be an anhydride, and examples thereof include tetrahydrophthalic anhydride, phthalic anhydride, hexahydrophthalic anhydride, succinic anhydride, maleic anhydride, trimellitic anhydride, and pyromellitic dianhydride.

[0053] As a modified example of the method (i), a monomer having a carboxy group may be copolymerized with another monomer to obtain a copolymer, and the side chain carboxy group of the copolymer may be subjected to an addition reaction with a compound having an ethylenically unsaturated double bond and an epoxy group, and the resulting hydroxyl group may be reacted with a polyvalent carboxylic acid (anhydride) to introduce an ethylenically unsaturated double bond and a carboxy group.

[0054] Method (ii): A monomer having a hydroxyl group, a monomer having a carboxyl group, and, if necessary, other monomers are copolymerized to obtain a copolymer, and an ethylenically unsaturated monomer having an isocyanate group is reacted with the side chain hydroxyl group of the copolymer to introduce an ethylenically unsaturated double bond.

[0055] Examples of monomers having a hydroxyl group include hydroxyalkyl (meth)acrylates such as 2-hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, hydroxybutyl (meth)acrylate, glycerol (meth)acrylate, and cyclohexane dimethanol mono(meth)acrylate. In addition, polyether mono(meth)acrylates obtained by addition polymerization of ethylene oxide, propylene oxide, and / or butylene oxide to the above-mentioned hydroxyalkyl (meth)acrylates, and (poly)ester mono(meth)acrylates obtained by addition of (poly)γ-valerolactone, (poly)ε-caprolactone, (poly)12-hydroxystearic acid, and the like, can also be used. From the viewpoint of suppressing the generation of foreign matter when a coating film is formed, 2-hydroxyethyl (meth)acrylate or glycerol (meth)acrylate is preferred.

[0056] Examples of the monomer having a carboxy group include the same monomers as those having an ethylenically unsaturated double bond.

[0057] Examples of monomers having an isocyanate group include 2-(meth)acryloyloxyethyl isocyanate and 1,1-bis[(meth)acryloyloxy]ethyl isocyanate.

[0058] 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, and more preferably in the range of 10,000 to 80,000. The number average molecular weight (Mn) is preferably in the range of 5,000 to 50,000, and the value of Mw / Mn is preferably 10 or less.

[0059] The acid value of the binder resin (B) is preferably from 20 to 300 mgKOH / g from the viewpoints of pigment dispersibility, developability, and resistance of the cured film.

[0060] The proportion of the binder resin (B) in the composition for visible light shielding layer is preferably 20 to 1000 parts by weight per 100 parts by weight of the organic pigment (A) from the viewpoints of film formability and durability of the cured film.

[0061] (Photopolymerization initiator (C)) Examples of the photopolymerization initiator (C) include acetophenone-based compounds such as 4-phenoxydichloroacetophenone, 4-t-butyl-dichloroacetophenone, diethoxyacetophenone, p-dimethylaminoacetophenone, 1-(4-isopropylphenyl)-2-hydroxy-2-methylpropan-1-one, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropan-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butan-1-one, and 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholinyl)phenyl]-1-butanone; Benzoin compounds such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzil dimethyl ketal; Benzophenone compounds such as benzophenone, benzoylbenzoic acid, methyl benzoylbenzoate, 4-phenylbenzophenone, hydroxybenzophenone, acrylated benzophenone, 4-benzoyl-4'-methyldiphenyl sulfide, and 3,3',4,4'-tetra(t-butylperoxycarbonyl)benzophenone; Thioxanthone compounds such as thioxanthone, 2-chlorothioxanthone, 2-methylthioxanthone, isopropylthioxanthone, 2,4-diisopropylthioxanthone, and 2,4-diethylthioxanthone; triazine-based compounds such as 2,4,6-trichloro-s-triazine, 2-phenyl-4,6-bis(trichloromethyl)-s-triazine, 2-(p-methoxyphenyl)-4,6-bis(trichloromethyl)-s-triazine, 2-(p-tolyl)-4,6-bis(trichloromethyl)-s-triazine, 2-piperonyl-4,6-bis(trichloromethyl)-s-triazine, 2,4-bis(trichloromethyl)-6-styryl-s-triazine, 2-(naphth-1-yl)-4,6-bis(trichloromethyl)-s-triazine, 2-(4-methoxy-naphth-1-yl)-4,6-bis(trichloromethyl)-s-triazine, 2,4-trichloromethyl-(piperonyl)-6-triazine, and 2,4-trichloromethyl(4'-methoxystyryl)-6-triazine; Acetophenone, Benzophenone, 4,4'-Bis(diethylamino)-benzophenone, 4-(methylphenylthio)-phenyl phenyl ketone, Benzyl dimethyl ketal, 2-Methyl-1-methylthiophenyl-2-morpholinopropan-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butan-1-one, Ethyl p-diethylaminobenzoate, Thioxanthone, 2,5-Diethylthioxanthone, 2-Chloroxanthone, Isopropyl thioxanthone, 1-chloro-4-propoxy-thioxanthone, 2-(o-chlorophenyl)-4,5-diphenylimidazole dimer, 2-(o-fluorophenyl)-4,5-diphenylimidazole dimer, 2-(o-methoxyphenyl)-4,5-diphenylimidazole dimer, 2-(p-methoxyphenyl)-4,5-diphenylimidazole dimer, 2-(o-chlorophenyl)-4,5-di(o-methoxyphenyl)imidazole dimer, 9-phenylacrylamide, 9-(p-toluyl)acridine, 1,7-bis(9,9'-acridinyl)heptane, N-phenylglycine, bis(η5-cyclopentadienyl)bis[2,6-difluoro-3-(1H-pyrrol-1-yl)phenyl]titanium, 2-ethylanthraquinone, 1-chloroanthraquinone, 2-phenyl-4,6-bis(trichloromethyl)-s-triazine, 2-(4-methoxyphenyl)-4,6-bis(trichloromethyl)-s-triazine, 2-naphthyl -4,6-bis(trichloromethyl)-s-triazine, 2-(4-methoxynaphthyl)-4,6-bis(trichloromethyl)-s-triazine, 2-methyl-4,6-bis(trichloromethyl)-s-triazine, 1,2-octanedione, 1-[4-(phenylthio)phenyl-, 2-(O-benzoyloxime)], O-(acetyl)-N-(1-phenyl-2-oxo-2-(4'-methoxy-naphthyl)ethylidene)hydroxylamine and other oxime ester compounds;Phosphine compounds such as bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide and 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide; imidazole compounds such as 2,2'-bis(o-chlorophenyl)-4,5,4',5'-tetraphenyl-1,2'-biimidazole, 2,2'-bis(o-methoxyphenyl)-4,4',5,5'-tetraphenylbiimidazole, and 2,2'-bis(o-chlorophenyl)-4,4',5,5'-tetra(p-methylphenyl)biimidazole; 2-Dimethylamino-2-methyl-1-phenylpropan-1-one, 2-diethylamino-2-methyl-1-phenylpropan-1-one, 2-methyl-2-morpholino-1-phenylpropan-1-one, 2-dimethylamino-2-methyl-1-(4-methylphenyl)propan-1-one, 2-dimethylamino-1-(4-ethylphenyl)-2-methylpropan-1-one, 2-dimethylamino-1-(4-isopropylphenyl)-2-methylpropan-1-one, 1-(4-butylphenyl)-2-dimethylamino-2-methylpropan-1-one, 2-dimethylamino-1-(4-methoxyphenyl)-2-methylpropan Amino ketone compounds such as Pan-1-one, 2-dimethylamino-2-methyl-1-(4-methylthiophenyl)propan-1-one, 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one (IRGACURE907), 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butan-1-one (IRGACURE369), 2-benzyl-2-dimethylamino-1-(4-dimethylaminophenyl)-butan-1-one, 2-dimethylamino-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholinyl)phenyl]-1-butanone (IRGACURE379); Examples of the compound include quinone-based compounds such as 9,10-phenanthrenequinone, camphorquinone, and ethylanthraquinone; borate-based compounds, carbazole-based compounds, and titanocene-based compounds.

[0062] Among these, it is more preferable to use an oxime ester compound as the photopolymerization initiator. Oxime ester compounds have very high sensitivity, making it possible to form a pattern with a low exposure dose, and also have excellent adhesion in the development step.

[0063] As the oxime ester photopolymerization initiator, among others, an oxime ester photopolymerization initiator represented by the following general formulas (8) to (10) is preferable, an oxime ester photopolymerization initiator represented by the following general formula (8) or (9) is more preferable, and an oxime ester photopolymerization initiator represented by general formula (8) is even more preferable.

[0064] An oxime ester photoinitiator represented by the general formula (8): [ka] In formula (8), Z represents a direct bond or a -C(=O)- group, R 11 represents an alkyl group having 1 to 20 carbon atoms which may have a substituent, R 12 represents an alkyl group having 1 to 20 carbon atoms which may have a substituent, or an aryl group which may have a substituent, R 13 ~R 20 each independently represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms which may have a substituent, an aryl group which may have a substituent, a nitro group, or R 21 represents a -C(=O)- group. 21 represents an aryl group which may have a substituent.

[0065] R 11 ~R 20 Examples of the alkyl group having 1 to 20 carbon atoms include linear alkyl groups such as a methyl group, an ethyl group, a propyl group, a butyl group, a hexyl group, an octyl group, and a dodecyl group. R 12 ~R 21 Examples of the aryl group in include a phenyl group, a naphthyl group, and an anthracenyl group. In addition, when Z is a direct bond, it means that Z does not have an atom, and the two atoms connected to Z in general formula (8) are directly bonded.

[0066] The substituent which the alkyl group and the aryl group may have means that the alkyl group or the aryl group may have a substituent in place of a hydrogen atom contained in the alkyl group or the aryl group. Examples of the substituent include halogen atoms such as fluorine atom, chlorine atom, bromine atom, and iodine atom; alkoxy groups such as methoxy group, ethoxy group, and tert-butoxy group; aryloxy groups such as phenoxy group and p-tolyloxy group; alkoxycarbonyl groups such as methoxycarbonyl group, butoxycarbonyl group, and phenoxycarbonyl group; acyloxy groups such as acetoxy group, propionyloxy group, and benzoyloxy group; acyl groups such as acetyl group, benzoyl group, isobutyryl group, acryloyl group, methacryloyl group, and methoxalyl group; alkylsulfanyl groups such as methylsulfanyl group and tert-butylsulfanyl group; arylsulfanyl groups such as phenylsulfanyl group and p-tolylsulfanyl group; alkylamino groups such as methylamino group and cyclohexylamino group; dimethylamino group, diethylamino group, morpholino group, piperidino group, arylamino groups such as a phenylamino group and a p-tolylamino group; alkyl groups such as a methyl group, an ethyl group, a tert-butyl group, a dodecyl group, a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, and a cyclooctadecyl group; aryl groups such as a phenyl group, a p-tolyl group, a xylyl group, a cumenyl group, a naphthyl group, an anthryl group, and a phenanthryl group; heterocyclic groups such as a furyl group and a thienyl group, as well as a hydroxy group, a carboxy group, a formyl group, a mercapto group, a sulfo group, a mesyl group, a p-toluenesulfonyl group, an amino group, a nitro group, a cyano group, a trifluoromethyl group, a trichloromethyl group, a trimethylsilyl group, a phosphinico group, a phosphono group, a trimethylammonium group, a dimethylsulfoniumyl group, and a triphenylphenacylphosphoniumyl group. Furthermore, one or more of these substituents may be present, or one or more types of these substituents may be present, and furthermore, the hydrogen atoms of these substituents may be further substituted with other substituents.

[0067] In particular, the oxime ester photopolymerization initiator represented by the general formula (8) is a photopolymerization initiator in which Z is a direct bond or a -C(=O)- group, and R 11 is an alkyl group having 1 to 20 carbon atoms which may have a substituent, and R 12 is an alkyl group having 1 to 20 carbon atoms which may have a substituent, or an aryl group which may have a substituent, and R 13 ~R 20 each independently represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms which may have a substituent, an aryl group which may have a substituent, a nitro group, or R 21 A -CO- group is preferable. Among them, R 14 ~R 16 and R 18 ~R 20 is a hydrogen atom, and R 17 is a hydrogen atom, or R 21 -CO- group, R 21 is more preferably an aryl group which may have a substituent.

[0068] Of the oxime ester photopolymerization initiators represented by general formula (8), compounds represented by the following chemical formula (8-1) or (8-2) are preferred.

[0069] [ka]

[0070] An oxime ester photoinitiator represented by the general formula (9): [ka] In formula (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 the bonds is a carbonyl bond (-CO-). R a is an alkyl group having 2 to 6 carbon atoms, and R b is an alkyl group having 4 to 10 carbon atoms, and R cis a group that contains at least a hydrocarbon ring or a heterocycle and may further contain at least one divalent linking group selected from an alkylene chain having 1 to 4 carbon atoms, a thioether bond (-S-), an ether bond (-O-), and a carbonyl bond (-CO-), and R b and R c are different substituents. d and R e are each independently an alkyl group having 1 to 6 carbon atoms.

[0071] R a Examples of the alkyl group in the formula (I) include linear alkyl groups such as an ethyl group, a propyl group, a butyl group, and a hexyl group. R b The alkyl group in the formula (I) includes linear alkyl groups such as a butyl group, a hexyl group, an octyl group, and a dodecyl group. R c Examples of the hydrocarbon ring in R include an aliphatic hydrocarbon ring such as a cyclohexyl group, and an aromatic hydrocarbon ring such as a phenyl group, a naphthyl group, and an anthracenyl group. c Examples of the heterocyclic ring in the above formula include rings in which one or more carbon atoms of the above hydrocarbon ring are replaced with a nitrogen atom, an oxygen atom or a sulfur atom. Also, R d and R e Examples of the alkyl group in the formula include linear alkyl groups such as a methyl group, an ethyl group, a propyl group, a butyl group, and a hexyl group.

[0072] Of the oxime ester photopolymerization initiators represented by general formula (9), the compounds represented by the following chemical formula (9-1) are preferred.

[0073] [ka]

[0074] An oxime ester photoinitiator represented by the general formula (10): [ka] In formula (10), R 31 and R 32 are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms which may have a substituent, or an aryl group which may have a substituent, R 33 and R 34 are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms which may have a substituent, or an aryl group which may have a substituent, R 35 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms which may have a substituent, an aryl group which may have a substituent, or R 36 -CO- group, R 36 represents an alkyl group having 1 to 20 carbon atoms which may have a substituent, an aryl group which may have a substituent, or a heterocyclic group.

[0075] R 31 ~R 36 The alkyl group having 1 to 20 carbon atoms in R 11 ~R 20 It can be the same as the alkyl group having 1 to 20 carbon atoms in the above. R 31 ~R 36 The aryl group in R 12 ~R 21 The aryl group may be the same as the aryl group in the above formula (I). R 36 Examples of the heterocyclic ring in the heterocyclic group include furan, thiophene, pyrrole, oxazole, thiazole, imidazole, pyrazole, pyran, pyrone, pyridine, pyrone, pyridazine, pyrimidine, pyrazine, benzofuran, thionaphthene, indole, carbazole, coumarin, quinoline, phthalazine, and quinoxaline. The substituents which the alkyl group and aryl group may have may be the same as those in the general formula (8).

[0076] The oxime ester photopolymerization initiator represented by the general formula (10) is R 31 is an aryl group which may have a substituent, and R 32is an alkyl group having 1 to 20 carbon atoms which may have a substituent, and R 33 and R 34 is a hydrogen atom, and R 35 is a hydrogen atom, or R 36 A -CO- group is preferred.

[0077] Of the oxime ester photopolymerization initiators represented by general formula (10), the compounds represented by the following chemical formula (10-1) are preferred.

[0078] [ka]

[0079] The ratio of the 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, based on 100 parts by weight of the organic pigment (A) in terms of curability and developability.

[0080] (Photopolymerizable compound (D)) Examples of the photopolymerizable compound (D) include monomers and oligomers that are cured by ultraviolet light or the like to produce a transparent resin. Specific examples of the photopolymerizable compound (D) include methyl (meth)acrylate, ethyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, cyclohexyl (meth)acrylate, β-carboxyethyl (meth)acrylate, 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, and 1,6-hexanediol diglycidyl ether. Examples of the acrylic acid esters and methacrylic acid esters include butyl 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, tricyclodecanyl (meth)acrylate, ester acrylate, (meth)acrylic acid ester of methylol melamine, epoxy (meth)acrylate, and urethane acrylate, as well as (meth)acrylic acid, styrene, vinyl acetate, hydroxyethyl vinyl ether, ethylene glycol divinyl ether, pentaerythritol trivinyl ether, (meth)acrylamide, N-hydroxymethyl (meth)acrylamide, N-vinyl formamide, and acrylonitrile.

[0081] Furthermore, as the photopolymerizable compound (D), an esterification product of a compound in which (meth)acrylic acid has been introduced into a portion of a polyhydric alcohol and a dicarboxylic acid; an esterification product of a polycarboxylic acid and a monohydroxy(meth)acrylate; and the like may be used. Specific examples include monoesters of monohydroxy oligoacrylates or monohydroxy oligomethacrylates, such as trimethylolpropane diacrylate, trimethylolpropane dimethacrylate, pentaerythritol triacrylate, pentaerythritol trimethacrylate, dipentaerythritol pentaacrylate, and dipentaerythritol pentamethacrylate, with 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 (tricarballylic 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, with monohydroxy monoacrylates or monohydroxy monomethacrylates, such as 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, and 2-hydroxypropyl methacrylate.

[0082] Further, polyfunctional monomers having 3 to 12 ethylenically unsaturated bonds in one molecule are included, and it is preferable to include a polyfunctional monomer. In addition to the above, examples of the polyfunctional monomer include phenoxytetraethylene glycol (meth)acrylate, phenoxyhexaethylene glycol (meth)acrylate, EO-modified phthalic acid (meth)acrylate, PO-modified phthalic acid (meth)acrylate, acrylated isocyanurate, bis(acryloxyneopentyl glycol) 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, and tripropylene glycol. Di(meth)acrylate, tris(acryloxyethyl)isocyanurate, caprolactone-modified tris(acryloxyethyl)isocyanurate, hydroxypivalic acid neopentyl glycol di(meth)acrylate, pentaerythritol tri(meth)acrylate, dicyclopentanyl di(meth)acrylate, EO-modified bisphenol A di(meth)acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol monohydroxypenta(meth)acrylate, alkyl-modified dipentaerythritol penta(meth)acrylate, caprolactone-modified dipentaerythritol hexa(meth)acrylate, and the like.

[0083] The photopolymerizable compound (D) may contain a compound represented by the following general formula (7) in order to achieve both good adhesion to other layers and high resolution of the resist pattern. General formula (7): [CH 2 =CHC(=O)-(OC m H 2m ) n -OCH 2 ] 3 -CR In formula (1), m represents an integer of 1 to 3, n represents an integer of 0 to 2, and each m and n, which are present in plurality, may be the same or different. R is -CH 2 CH 3 , -CH 2 OH, -CH 2OC(=O)C=CH 2 represents a substituent selected from Examples of the compound represented by the general formula (7) include trimethylolpropane triacrylate, trimethylolpropane EO-modified triacrylate, trimethylolpropane PO-modified triacrylate, pentaerythritol triacrylate, and pentaerythritol tetraacrylate.

[0084] The ratio of the 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, based on 100 parts by weight of the organic pigment (A) in terms of curability and developability.

[0085] (optional ingredient) The composition for a visible light shielding layer may further contain other components, such as a sensitizer, a solvent, a chain transfer agent, an antioxidant, a leveling agent, a storage stabilizer, an adhesion improver, an ultraviolet absorber, and a polymerization inhibitor.

[0086] Sensitizer The sensitizer improves the photocurability of the composition and the development stability of the cured product. Examples of sensitizers include unsaturated ketones such as chalcone derivatives and dibenzalacetone; 1,2-diketone derivatives such as benzil and camphorquinone; polymethine dyes such as benzoin derivatives, fluorene derivatives, naphthoquinone derivatives, anthraquinone derivatives, xanthene derivatives, thioxanthene derivatives, xanthone derivatives, thioxanthone derivatives, coumarin derivatives, ketocoumarin derivatives, cyanine derivatives, merocyanine derivatives, and oxonol derivatives; acridine derivatives, azine derivatives, thiazine derivatives, oxazine derivatives, indoline derivatives, azulene derivatives, azulenium derivatives, and squaryli. Examples of such compounds include ruthenium derivatives, porphyrin derivatives, tetraphenylporphyrin derivatives, triarylmethane derivatives, tetrabenzoporphyrin derivatives, tetrapyrazinoporphyrazine derivatives, phthalocyanine derivatives, tetraazaporphyrazine derivatives, tetraquinoxalylporphyrazine derivatives, naphthalocyanine derivatives, subphthalocyanine derivatives, pyrylium derivatives, thiopyrylium derivatives, tetraphylline derivatives, annulene derivatives, spiropyran derivatives, spirooxazine derivatives, thiospiropyran derivatives, metal arene complexes, organic ruthenium complexes, and Michler's ketone derivatives. Of the sensitizers, thioxanthone derivatives, Michler's ketone derivatives, and carbazole derivatives are preferred, and more specifically, 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 are preferred. When a sensitizer is used, the amount of the sensitizer is preferably 3 to 60 parts by weight, more preferably 5 to 50 parts by weight, per 100 parts by weight of the photopolymerization initiator (C) in terms of curability and developability.

[0087] ·solvent The solvent improves the dispersibility of the organic pigment (A) and the coatability and film-forming properties of the composition. Examples of the solvent include 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 -COO- and -O- in the molecule), ketone solvents (solvents containing -CO- but not -COO- in the molecule), alcohol solvents (solvents containing OH in the molecule and not containing -O-, -CO- or -COO-), aromatic hydrocarbon solvents, amide solvents, dimethyl sulfoxide, and the like.

[0088] Specific examples of the solvent include 1,2,3-trichloropropane, 1,3-butanediol, 1,3-butylene glycol, 1,3-butylene glycol diacetate, 1,4-dioxane, 2-heptanone, 2-methyl-1,3-propanediol, 3,5,5-trimethyl-2-cyclohexen-1-one, 3,3,5-trimethylcyclohexanone, 3-ethoxyethylpropionate, 3-methyl-1,3-butanediol, 3-methoxy-3-methyl-1-butanol, 3-methoxy-3-methylbutyl acetate, 3-methoxybutanol, 3-methyl-1,3-trimethylcyclohexanone ... butyl acetate, 4-heptanone, m-xylene, m-diethylbenzene, m-dichlorobenzene, N,N-dimethylacetamide, N,N-dimethylformamide, n-butyl alcohol, 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, isobutyl alcohol, isophorone, ethylene glycol diethyl ether ether, ethylene glycol dibutyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monoethyl ether, ethylene glycol monoethyl ether acetate, ethylene glycol monotertiary butyl ether, ethylene glycol monobutyl ether, ethylene glycol monobutyl ether acetate, 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, propylene glycol monomethyl ether propionate, benzyl alcohol, methyl isobutyl ketone, methylcyclohexanol, n-amyl acetate, n-butyl acetate, isoamyl acetate, isobutyl acetate, propyl acetate, dibasic acid esters, ethyl lactate, etc., Among these, solvents having a boiling point of 120° C. or more and 245° C. or less at 1 atm are preferred in terms of coating and drying properties. The content of the solvent in the composition for visible light shielding layer is preferably from 100 to 10,000 parts by weight, and more preferably from 500 to 5,000 parts by weight, based on 100 parts by weight of the organic pigment (A).

[0089] Chain transfer agent The chain transfer agent improves the photocurability of the composition. As the chain transfer agent, a polyfunctional thiol is preferable. Specific examples of the polyfunctional thiol include hexanedithiol, decanedithiol, 1,4-butanediol bisthiopropionate, 1,4-butanediol bisthioglycolate, ethylene glycol bisthioglycolate, ethylene glycol bisthiopropionate, trimethylolpropane tristhioglycolate, trimethylolpropane tristhiopropionate, trimethylolethane tris(3-mercaptobutyrate), trimethylolpropane ... Examples of the mercaptopropionate include pentaerythritol tetrakis thioglycolate, pentaerythritol tetrakis thiopropionate, pentaerythritol tetrakis (3-mercaptopropionate), dipentaerythritol hexakis (3-mercaptopropionate), trimercaptopropionic acid tris (2-hydroxyethyl) isocyanurate, 1,4-dimethylmercaptobenzene, 2,4,6-trimercapto-s-triazine, and 2- (N, N-dibutylamino) -4,6-dimercapto-s-triazine. When a chain transfer agent is used, the amount of the chain transfer agent is preferably 0.05 to 100 parts by weight, more preferably 1 to 50 parts by weight, based on 100 parts by weight of the organic pigment (A) in terms of development resistance after curing.

[0090] Antioxidants The antioxidant suppresses yellowing due to oxidation of each component in the heating process. Examples of the antioxidant include hindered phenol-based, hindered amine-based, phosphorus-based, sulfur-based, benzotriazole-based, benzophenone-based, hydroxylamine-based, salicylic acid ester-based, and triazine-based compounds. From the viewpoint of achieving both transmittance and sensitivity of the coating film, hindered phenol-based antioxidants, hindered amine-based antioxidants, phosphorus-based antioxidants, and sulfur-based antioxidants are preferred, and hindered phenol-based antioxidants, hindered amine-based antioxidants, and phosphorus-based antioxidants are more preferred. When an antioxidant is used, the content of the antioxidant is preferably 0.5 to 5.0 parts by weight per 100 parts by weight of the non-volatile components of the composition for visible light shielding layer.

[0091] Leveling agent The leveling agent improves the leveling property of the coating film. As the leveling agent, dimethylsiloxane having a polyether structure or polyester structure in the main chain is preferable. Specific examples of dimethylsiloxane having a polyether structure in the main chain include FZ-2122 manufactured by Dow Corning Toray Co., Ltd. and BYK-333 manufactured by BYK-Chemie Co., Ltd. Specific examples of dimethylsiloxane having a polyester structure in the main chain include BYK-310 and BYK-370 manufactured by BYK-Chemie Co., Ltd. Also preferred as the leveling agent is dimethylpolysiloxane having a polyalkylene oxide unit. Examples of the polyalkylene oxide unit include polyethylene oxide unit and polypropylene oxide unit. Examples of dimethylpolysiloxane having a polyalkylene oxide unit include FZ-2110, FZ-2122, FZ-2130, FZ-2166, FZ-2191, FZ-2203, and FZ-2207 manufactured by Dow Corning Toray Co., Ltd. When a leveling agent is used, the content of the leveling agent is preferably 0.003 to 1.0 part by weight based on the total weight of the nonvolatile content of the composition for visible light shielding layer.

[0092] Furthermore, an anionic, cationic, nonionic or amphoteric surfactant may be added as an auxiliary in combination with the leveling agent. Examples of the anionic surfactant include polyoxyethylene alkyl ether sulfate, sodium dodecylbenzene sulfonate, alkali salts of styrene-acrylic acid copolymers, sodium alkyl naphthalene sulfonate, sodium alkyl diphenyl ether disulfonate, monoethanolamine lauryl sulfate, triethanolamine lauryl sulfate, ammonium lauryl sulfate, monoethanolamine stearate, sodium stearate, sodium lauryl sulfate, monoethanolamine styrene-acrylic acid copolymers, and polyoxyethylene alkyl ether phosphates. Cationic surfactants include alkyl quaternary ammonium salts and their ethylene oxide adducts. Examples of nonionic surfactants include alcohol ethoxylates such as polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene nonylphenyl ether, polyoxyethylene alkyl ether phosphate esters, polyoxyethylene sorbitan monostearate, and polyethylene glycol monolaurate; amphoteric surfactants such as alkyl betaines, such as alkyl dimethylamino acetate betaine, and alkyl imidazolines, as well as fluorine-based and silicone-based surfactants.

[0093] Storage stabilizer The storage stabilizer is used to stabilize the viscosity of the composition for visible light shielding layer. Examples of the storage stabilizer include quaternary ammonium chlorides such as benzyl trimethyl chloride and diethylhydroxyamine, organic acids such as lactic acid and oxalic acid and their methyl ethers, organic phosphines such as t-butylpyrocatechol, tetraethylphosphine and tetraphenylphosphine, and phosphites. The storage stabilizer can be used in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the total amount of the organic pigment (A).

[0094] Adhesion improver The adhesion promoter is used to improve adhesion to other layers. Examples of adhesion improvers include vinyl silanes such as vinyltris(β-methoxyethoxy)silane, vinylethoxysilane, and vinyltrimethoxysilane, (meth)acrylic silanes such as γ-methacryloxypropyltrimethoxysilane, β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, β-(3,4-epoxycyclohexyl)methyltrimethoxysilane, β-(3,4-epoxycyclohexyl)ethyltriethoxysilane, β-(3,4-epoxycyclohexyl)methyltriethoxysilane, γ-glycidoxypropyltrimethoxysilane, and γ-glycidoxypropyltriethoxysilane. Examples of the silane coupling agent include epoxy silanes such as dimethylaminosilane, N-β(aminoethyl)γ-aminopropyl trimethoxysilane, N-β(aminoethyl)γ-aminopropyl triethoxysilane, N-β(aminoethyl)γ-aminopropyl methyl diethoxysilane, γ-aminopropyl triethoxysilane, γ-aminopropyl trimethoxysilane, N-phenyl-γ-aminopropyl trimethoxysilane, and N-phenyl-γ-aminopropyl triethoxysilane, and thiosilanes such as γ-mercaptopropyl trimethoxysilane and γ-mercaptopropyl triethoxysilane. The adhesion improver can be used in an amount of 0.01 to 10 parts by weight, preferably 0.05 to 5 parts by weight, based on 100 parts by weight of the total amount of the organic pigment (A) in the composition for visible light shielding layer.

[0095] -UV absorbers, polymerization inhibitors The UV absorber and polymerization inhibitor improve the solubility contrast of the composition after curing. Examples of ultraviolet absorbents include hydroxyphenyl triazines such as 2-[4-[(2-hydroxy-3-(dodecyl and tridecyl)oxypropyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2-(2-hydroxy-4-[1-octyloxycarbonylethoxy]phenyl)-4,6-bis(4-phenylphenyl)-1,3,5-triazine; benzotriazoles such as 2-(5-methyl-2-hydroxyphenyl)benzotriazole, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol and 2-(3-t-butyl-5-methyl-2-hydroxyphenyl)-5-chlorobenzotriazole; Benzophenone-based compounds such as 4-dihydroxybenzophenone, 2-hydroxy-4-octoxybenzophenone, and 2,2',4,4'-tetrahydroxybenzophenone; salicylate-based compounds such as phenyl salicylate and p-tert-butylphenyl salicylate; cyanoacrylate-based compounds such as ethyl-2-cyano-3,3'-diphenylacrylate; and hindered amine-based compounds such as 2,2,6,6-tetramethylpiperidine-1-oxyl (triacetone-amine-N-oxyl), bis(2,2,6,6-tetramethyl-4-piperidyl)-sebacate, and poly[[6-[(1,1,3,3-tetrabutyl)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]. Examples of the polymerization inhibitor include hydroquinone derivatives and phenol compounds such as methylhydroquinone, t-butylhydroquinone, 2,5-di-t-butylhydroquinone, 4-benzoquinone, 4-methoxyphenol, 4-methoxy-1-naphthol, and t-butylcatechol; Amine compounds such as phenothiazine, bis-(1-dimethylbenzyl)phenothiazine, and 3,7-dioctylphenothiazine; Copper and manganese salt compounds such as copper dibutyldithiocarbamate, copper diethyldithiocarbamate, manganese diethyldithiocarbamate, and manganese diphenyldithiocarbamate; Examples of the nitroso compounds include 4-nitrosophenol, N-nitrosodiphenylamine, N-nitrosocyclohexylhydroxylamine, and N-nitrosophenylhydroxylamine, as well as the ammonium salts or aluminum salts thereof. When an ultraviolet absorber and / or a polymerization inhibitor is used, the total content thereof is preferably from 0.01 to 20 parts by weight, more preferably from 0.05 to 10 parts by weight, based on 100 parts by weight of the organic pigment (A).

[0096] Each component in the composition for visible light shielding layer may be used independently as a single type, or as a combination of two or more types.

[0097] (2) Composition for near-infrared shielding layer The composition for near-infrared light shielding layer contains a near-infrared absorbing dye (E) represented by the following general formula (1), a resin-type dispersant (F) having an amine value of 20 mg KOH / g to 200 mg KOH / g (hereinafter also simply referred to as resin-type dispersant (F)), and a binder resin (G) having 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 also simply referred to as binder resin (G)). By forming the composition in this manner, the composition satisfies the above-mentioned spectral characteristics and film-forming conditions. [ka] X 1 ~X 10 each independently represents a hydrogen atom, an alkyl group which may have a substituent, an alkenyl group which may have a substituent, an aryl group which may have a substituent, an aralkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryloxy group which may have a substituent, an amino group, a substituted amino group, a sulfo group, -SO 2 NR 1 R 2 , -COOR 1 , -CONR 1 R 2 , a nitro group, a cyano group, or a halogen atom; X 1 ~X 10 may be bonded to each other to form a ring. R 1 and R 2 each independently represents a hydrogen atom or an alkyl group which may have a substituent.

[0098] (Near infrared absorbing dye (E)) The near-infrared absorbing dye represented by the above general formula (1) has low absorption of visible light (wavelength 400 to 700 nm), and has excellent near-infrared absorbing ability and durability.

[0099] X 1 ~X 10 Examples of the alkyl group which may have a substituent in the formula (I) include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, a tert-butyl group, a tert-amyl group, a 2-ethylhexyl group, a stearyl group, a chloromethyl group, a trichloromethyl group, a trifluoromethyl group, a 2-methoxyethyl group, a 2-chloroethyl group, a 2-nitroethyl group, a cyclopentyl group, a cyclohexyl group, a dimethylcyclohexyl group, and the like. Among these, in terms of the durability of the compound and the ease of synthesis, a methyl group, an ethyl group, or an n-propyl group is preferable, and a methyl group is more preferable.

[0100] X 1 ~X 10 Examples of the alkenyl group which may have a substituent include a vinyl group, a 1-propenyl group, an allyl group, a 2-butenyl group, a 3-butenyl group, an isopropenyl group, an isobutenyl group, a 1-pentenyl group, a 2-pentenyl group, a 3-pentenyl group, a 4-pentenyl group, a 1-hexenyl group, a 2-hexenyl group, a 3-hexenyl group, a 4-hexenyl group, a 5-hexenyl group, and the like. Of these, a vinyl group or an allyl group is preferred in terms of the durability of the compound and ease of synthesis.

[0101] X 1 ~X 10Examples of the aryl group which may have a substituent in the formula (I) include a phenyl group, a naphthyl group, a 4-methylphenyl group, a 3,5-dimethylphenyl group, a pentafluorophenyl group, a 4-bromophenyl group, a 2-methoxyphenyl group, a 4-diethylaminophenyl group, a 3-nitrophenyl group, a 4-cyanophenyl group, and the like. Among these, a phenyl group or a 4-methylphenyl group is preferred in terms of the durability of the compound and ease of synthesis.

[0102] X 1 ~X 10 Examples of the aralkyl group which may have a substituent in the formula (I) include a benzyl group, a phenethyl group, a phenylpropyl group, and a naphthylmethyl group. Among these, a benzyl group is preferred in terms of the durability of the compound and ease of synthesis.

[0103] X 1 ~X 10 Examples of the alkoxy group which may have a substituent in the formula (I) include a methoxy group, an ethoxy group, an n-propoxy group, an isopropoxy group, an n-butoxy group, an n-octyloxy group, a 2-ethylhexyloxy group, a trifluoromethoxy group, a cyclohexyloxy group, a stearyloxy group, and the like. Among these, a methoxy group, an ethoxy group, or a trifluoromethoxy group is preferred in terms of the durability of the compound and ease of synthesis.

[0104] X 1 ~X 10 Examples of the aryloxy group which may have a substituent in the formula (I) include a phenoxy group, a naphthyloxy group, a 4-methylphenyloxy group, a 3,5-chlorophenyloxy group, a 4-chloro-2-methylphenyloxy group, a 4-tert-butylphenyloxy group, a 4-methoxyphenyloxy group, a 4-diethylaminophenyloxy group, a 4-nitrophenyloxy group, and the like. Among these, in view of the durability of the compound and ease of synthesis, a phenoxy group or a naphthyloxy group is preferred.

[0105] X 1 ~X 10Examples of the substituted amino group in include a methylamino group, an ethylamino group, an isopropylamino group, an n-butylamino group, a cyclohexylamino group, a stearylamino group, a dimethylamino group, a diethylamino group, a dibutylamino group, an N,N-di(2-hydroxyethyl)amino group, a phenylamino group, a naphthylamino group, a 4-tert-butylphenylamino group, a diphenylamino group, an N-phenyl-N-ethylamino group, and the like. Among these, a dimethylamino group or a diethylamino group is preferred in terms of the durability of the compound and the ease of synthesis.

[0106] X 1 ~X 10 Examples of the halogen atom in include fluorine, bromine, chlorine and iodine.

[0107] X 1 ~X 10 Examples of structures in which are bonded to each other to form a ring include the structures shown below, where * represents a bond.

[0108] [ka]

[0109] Also, R 1 and R 2 The alkyl group which may have a substituent in X 1 ~X 10 The same applies to the preferred embodiments.

[0110] Among them, X 1 ~X 10 preferably contains an unsubstituted alkyl group, and X 3 , X 4 , X 7 and X 8 More preferably, at least one of X is an unsubstituted alkyl group. 3 and X 7 is more preferably an unsubstituted alkyl group, and the unsubstituted alkyl group is particularly preferably a methyl group.

[0111] The content of the near-infrared absorbing dye (E) in the composition for near-infrared shading layer is preferably 0.01 to 50% by weight, and more preferably 0.1 to 30% by weight, based on the non-volatile components in the composition for near-infrared shading layer, from the viewpoint of the near-infrared absorbing ability of the cured product.

[0112] The near infrared absorbing dye (E) is preferably used in a finely divided form. The primary particle size of the near infrared absorbing dye (E) is preferably 1 to 200 nm, more preferably 10 to 150 nm, and even more preferably 10 to 100 nm. If the average primary particle size is 1 nm or more, aggregation of the near infrared absorbing dye (E) is suppressed, and the dispersibility and dispersion stability are excellent. On the other hand, if the primary particle size is 200 nm or less, the effect of particle scattering is reduced, and the absorption spectrum becomes sharp. The method for measuring the particle size is the same as that for the organic pigment (A).

[0113] The near infrared absorbing dye (E) may be a commercially available product or may be synthesized. The synthesis method is not particularly limited, but as an example, it can be synthesized based on the following scheme 1. Specifically, 1,8-diaminonaphthalene (the following formula (2)) and a compound of the following formula (3) are heated and refluxed in a solvent together with a catalyst to synthesize a compound of the following formula (4), and 3,4-dihydroxy-3-cyclobutene-1,2-dione is added and further heated and refluxed to obtain a compound of formula (1) (near infrared absorbing dye (E)).

[0114] [ka]

[0115] (Resin-type dispersant (F)) The composition for near-infrared light shielding layer contains a resin-type dispersant (F) having an amine value of 20 mgKOH / g to 200 mgKOH / g from the viewpoints of dispersibility and dispersion stability of the near-infrared absorbing dye (E). The amine value is preferably 60 to 150 mgKOH / g, and more preferably 60 to 120 mgKOH / g.

[0116] The resin-type dispersant (F) has an affinity site that adsorbs to the dye (E) and a site that is compatible with a carrier such as the binder resin (G), and stabilizes the dispersion by adsorbing to the dye (E). In particular, resins with controlled structures such as graft type (comb type) and block type are preferred. Specific examples of the main chain and / or side chain skeleton of the resin-type dispersant include polycarboxylates such as polyurethanes and polyacrylates, unsaturated polyamides, polycarboxylic acids, polycarboxylate (partial) amine salts, polycarboxylate ammonium salts, polycarboxylate alkylamine salts, polysiloxanes, long-chain polyaminoamide phosphates, hydroxyl-containing polycarboxylates, and their modifications, oil-based dispersants such as amides formed by the reaction of poly(lower alkylene imines) with polyesters having free carboxyl groups and their salts, water-soluble resins and water-soluble polymer compounds such as (meth)acrylic acid-styrene copolymers, (meth)acrylic acid-(meth)acrylic acid ester copolymers, styrene-maleic acid copolymers, polyvinyl alcohols, and polyvinylpyrrolidone, polyesters, modified polyacrylates, ethylene oxide / propylene oxide adducts, and phosphates. Among these, those having (meth)acrylic copolymers as the main chain and / or side chains are preferred. In addition, specific examples of the dye adsorption group of the resin-type dispersant (F) include acidic adsorption groups such as aromatic carboxyl groups and phosphoric acid groups, and basic adsorption groups such as primary amino groups, secondary amino groups, tertiary amino groups, and quaternary ammonium salts. Among them, resin-type dispersants having aromatic carboxyl groups, tertiary amino groups, and quaternary ammonium salts as dye adsorption groups are preferred from the viewpoint of near-infrared absorbing ability and durability, and resin-type dispersants having tertiary amino groups or quaternary ammonium salts are more preferred, and resin-type dispersants having tertiary amino groups and quaternary ammonium salts are even more preferred. If the resin-type dispersant contains both a tertiary amino group and a quaternary ammonium salt group, it is preferred not only in terms of visible transmittance, near-infrared absorbing ability, durability, and patterning ability, but also in terms of storage stability.

[0117] Examples of the resin-type dispersant (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 Co., Ltd., SOLSPERSE-13240, 13650, 13940, 20000, 24000, 26000, 32000, 33000, 39000, 56000, and 71000 manufactured by Lubrizol Japan Co., Ltd., and Ajisper PB711 manufactured by Ajinomoto Fine-Techno Co., Ltd. The resin-type dispersant (F) can be produced by a known method such as the method described in JP-A-2010-506016. When the resin-type dispersant (F) is a block copolymer, it can be produced, for example, by copolymerizing a monomer having a tertiary amino group or a quaternary amino group with another monomer. When the resin-type dispersant (F) is a graft copolymer, it can be produced by grafting a monomer having a tertiary amino group or a quaternary amino group to a reactive group in the side chain of the main chain polymer.

[0118] The content of the resin type dispersant (F) in the composition for near-infrared light shielding layer is preferably 5 to 200% by weight, more preferably 10 to 150% by weight, based on the weight of the near-infrared absorbing dye (E) from the viewpoints of optical properties and durability.

[0119] (Binder resin (G)) The composition for near-infrared light shielding layer contains a binder resin (G) having a weight average molecular weight of 5,000 to 40,000 and an acid value of 100 mgKOH / g to 130 mgKOH / g from the viewpoints of storage stability, alkali developability, etc. The binder resin (G) preferably has a spectral transmittance of 80% or more, more preferably 95% or more, in the entire wavelength range of the visible light range (wavelength 400 to 700 nm). Among them, an acrylic copolymer containing methacrylic acid and hydroxyethyl methacrylate as monomers is preferred from the viewpoint of storage stability of the composition. In order to further improve the photosensitivity and the 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 mgKOH / g to 120 mgKOH / g. The binder resin (G) may be an active energy ray curable resin having an ethylenically unsaturated double bond, and among them, an alkali-soluble active energy ray curable resin is preferred.

[0120] Specific examples of the active energy ray-curable resin having an ethylenically unsaturated double bond and the alkali-soluble active energy ray-curable resin are as described above in regard to the binder resin (B), and therefore description thereof will be omitted here.

[0121] The number average molecular weight (Mn) of the binder resin (G) is preferably in the range of 50,000 to 25,000 from the viewpoint of dispersibility of the near infrared absorbing dye (E), and the value of Mw / Mn is preferably 10 or less.

[0122] The proportion of the binder resin (G) in the composition for near-infrared light-shielding layer is preferably 30 to 500 parts by weight per 100 parts by weight of the near-infrared absorbing dye (E) from the viewpoints of film-formability and durability of the cured film.

[0123] (optional ingredient) The composition for a near-infrared light shielding layer may further contain other components, such as a photopolymerizable monomer, a photopolymerization initiator, a solvent, a sensitizer, a chain transfer agent, an antioxidant, an amine compound, a leveling agent, a curing agent, a curing accelerator, other near-infrared absorbing dyes, a storage stabilizer, and an adhesion improver.

[0124] Photopolymerizable monomers The photopolymerizable monomer may be any of those exemplified as the photopolymerizable compound (D) above, and preferably contains a polyfunctional monomer.

[0125] When a photopolymerizable monomer is used, the proportion of the photopolymerizable monomer is preferably 5 to 400 parts by weight, more preferably 10 to 300 parts by weight, per 100 parts by weight of the near infrared absorbing dye (E) from the viewpoints of curability and developability.

[0126] Photopolymerization initiator Examples of the photopolymerization initiator include those similar to those exemplified as the photopolymerization initiator (C) above, and from the viewpoints of sensitivity and resolution, oxime ester compounds and amino ketone compounds are particularly preferred.

[0127] When a photopolymerization initiator is used, the proportion of the photopolymerization initiator is preferably from 5 to 200 parts by weight, more preferably from 10 to 150 parts by weight, per 100 parts by weight of the near infrared absorbing dye (E) in terms of curability and developability.

[0128] ·solvent The solvent may be the same as those exemplified in the composition for visible light shielding layer. The content of the solvent in the composition for near infrared light shielding layer is preferably 500 to 4000 parts by weight based on 100 parts by weight of the near infrared absorbing dye (E).

[0129] Sensitizer The sensitizer may be the same as those exemplified in the composition for visible light shielding layer. When the sensitizer is used, the amount of the sensitizer is preferably 3 to 60 parts by weight, more preferably 5 to 50 parts by weight, based on 100 parts by weight of the photopolymerization initiator, from the viewpoints of curability and developability.

[0130] Chain transfer agent The chain transfer agent may be the same as those exemplified in the composition for visible light shielding layer. When the chain transfer agent is used, the amount of the chain transfer agent is preferably 0.1 to 30 parts by weight, more preferably 1 to 20 parts by weight, based on 100 parts by weight of the total amount of the nonvolatile content of the composition for near infrared light shielding layer, from the viewpoint of development resistance after curing.

[0131] Antioxidants The antioxidant may be the same as those exemplified in the composition for visible light shielding layer. When an antioxidant is used, the content of the antioxidant is preferably 0.5 to 5.0 parts by weight per 100 parts by weight of the non-volatile components of the composition for near infrared light shielding layer.

[0132] Amine compounds The amine compound is used to reduce oxygen dissolved in the composition for near-infrared light shielding layer. 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.

[0133] Leveling agent The leveling agent may be the same as those exemplified in the composition for visible light shielding layer. When the leveling agent is used, the content of the leveling agent is preferably 0.003 to 1.0 parts by weight based on the total weight of the non-volatile content of the composition for near infrared light shielding layer.

[0134] Storage stabilizer The storage stabilizer may be the same as those exemplified in the composition for visible light shielding layer. The storage stabilizer may be used in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the total amount of the near infrared absorbing dye (E).

[0135] Adhesion improver The adhesion improver may be the same as those exemplified in the composition for visible light shielding layer. The adhesion improver may be used in an amount of 0.01 to 10 parts by weight, preferably 0.05 to 5 parts by weight, based on 100 parts by weight of the total amount of the near infrared absorbing dye (E).

[0136] Other near infrared absorbing dyes The composition for near-infrared light shielding layer may contain a near-infrared light absorbing dye other than the near-infrared light absorbing dye (E). Examples of the near-infrared light absorbing dye include cyanine compounds, squarylium compounds, phthalocyanine compounds, naphthalocyanine compounds, aminium compounds, diimmonium compounds, croconium compounds, azo compounds, quinoid complex compounds, and dithiol metal complex compounds.

[0137] Each component in the composition for near-infrared light shielding layer may be used independently as a single type, or as a combination of two or more types.

[0138] (3) Composition for colored layer The colored layer composition contains at least a colorant (H), a photopolymerizable compound (I), and a photopolymerization initiator (J), and may contain other components as necessary.

[0139] (Colorant (H)) The colorant (H) is used so that each colored layer has the desired spectral characteristics, and can be appropriately selected from known pigments and dyes. As the pigment, either an organic pigment or an inorganic pigment can be suitably used. In addition, since the composition for the colored layer described later has excellent low-temperature curing properties, even a dye having lower heat resistance than a pigment can be suitably used.

[0140] Examples of inorganic pigments include metal oxide powders such as barium sulfate, zinc white, lead sulfate, yellow lead, zinc yellow, red iron oxide (red iron (III) oxide), cadmium red, ultramarine, Prussian blue, chromium oxide green, cobalt green, umber, titanium black, synthetic iron black, titanium oxide, and iron tetroxide, metal sulfide powders, and metal powders. In order to ensure good coatability, sensitivity, developability, and the like while maintaining a balance between saturation and brightness, inorganic pigments are preferably used in combination with organic pigments. The dye may be any of acid dyes, direct dyes, basic dyes, salt-forming dyes, oil-soluble dyes, disperse dyes, reactive dyes, mordant dyes, vat dyes, sulfur dyes, etc. Also, the dye may be in the form of a derivative of these dyes or a lake pigment obtained by converting the dye into a lake.

[0141] The colorant (H) preferably contains a pigment, and more preferably an organic pigment, from the viewpoints of high color development and excellent heat resistance, particularly excellent resistance to thermal decomposition. The colorant (H) will be described in more detail for each color below. Note that, for each color, the colorant (H) may be used alone or in combination of two or more kinds.

[0142] Red layer The colorant for the red layer preferably contains a red pigment, and may further contain an orange pigment, a yellow pigment, or the like.

[0143] 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, 147, 1 49, 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, 232, 23 3, 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.

[0144] Specific examples of orange pigments include CI Pigment Orange 36, 38, 43, 51, 55, 59, and 61. Specific examples of yellow pigments include the same pigments as those exemplified for the organic pigment (A).

[0145] From the viewpoints of high brightness and high color reproducibility, the colorant for the red layer preferably contains Pigment Red 177, and more preferably contains Pigment Red 139, Pigment Red 177, and Pigment Red 254. When PY139, PY177, and PY254 are used in combination, it is preferable that the content of PY177 in the red colorant is 55% by weight to 65% by weight, the content of PY254 is 15% by weight to 25% by weight, and the content of PY139 is 15% by weight to 25% by weight.

[0146] ·Green layer The colorant for the green layer preferably contains a green pigment or a blue pigment, and may further contain a yellow pigment, etc.

[0147] Specific examples of the green pigment 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, and 63. Specific examples of the blue pigment and the yellow pigment include the same pigments as those exemplified for the organic pigment (A).

[0148] From the viewpoints of high brightness and high color reproducibility, the colorant for the green layer preferably contains Pigment Yellow 185, and more preferably contains any one of Pigment Green 36, Pigment Green 58, and Pigment Blue 15:3. The content of PY185 in the colorant for the green layer is preferably 49% by weight to 59% by weight. The total content of PG36 and PG58 in the colorant for the green layer is preferably 33% by weight to 43% by weight. The content of PB15:3 in the colorant for the green filter is preferably 3% by weight to 13% by weight.

[0149] ·Blue layer The colorant for the blue layer preferably contains a blue pigment, and may further contain a purple pigment, a xanthene dye, or the like. Specific examples of the blue pigment and the purple pigment include the same pigments as those exemplified above for the organic pigment (A).

[0150] The xanthene dye may be any of an oil-soluble dye, an acid dye, a direct dye, and a basic dye, and may be used as a lake pigment. Specific examples of xanthene 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, and CI Solvent Violet 10. 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. Specific examples of xanthene basic dyes include CI Basic Red 1 (Rhodamine 6GCP), 8 (Rhodamine G), and CI Basic Violet 10 (Rhodamine B). From the viewpoint of excellent color development, CI Basic Red 1 and CI Basic Violet 10 are preferred. Specific examples of xanthene acid dyes include CI Acid Red 51 (Erythrosine (Food Red No. 3)), CI Acid Red 52 (Acid Rhodamine), CI Acid Red 87 (Eosine G (Food Red No. 103)), CI Acid Red 92 (Acid Phloxine PB (Food Red No. 104)), CI Acid Red 289, CI Acid Red 388, Rose Bengal B (Food Red No. 5), Acid Rhodamine G, and CI Acid Violet 9. From the viewpoints of heat resistance and light fastness, 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 more preferable, and CI Acid Red 52 and CI Acid Red 289 are more preferable.

[0151] The colorant for the blue layer preferably contains Pigment Blue 15:6, and more preferably contains Pigment Violet 23 or a xanthene dye. The content of PB15:6 in the colorant for the blue layer is preferably 58% by weight to 64% by weight. The content of PV23 in the colorant for the blue layer is preferably 12% by weight to 20% by weight. The content of xanthene dye in the colorant for the blue layer is preferably 17% by weight to 25% by weight.

[0152] When a pigment is used as a colorant of each color, it is preferable to make the pigment fine. The method of making the pigment fine and the preferable particle size are the same as those of the organic pigment (A).

[0153] (Photopolymerizable compound (I)) The photopolymerizable compound (I) may be the same as the photopolymerizable compound (D). In order to achieve both adhesion to other layers and high resolution of the resist pattern, the photopolymerizable compound (I) preferably contains a compound represented by the general formula (7).

[0154] The content ratio of the photopolymerizable compound (I) to the total nonvolatile content in the color layer composition is preferably 5 to 40% by weight. Within this range, the adhesion of the fine pattern is excellent, and the spread of the taper is suppressed, making it possible to obtain a high-definition display device. Furthermore, the content of the compound represented by the general formula (1) contained in the photopolymerizable compound (I) is preferably 50 to 100% by weight, more preferably 60% by weight or more, based on the total amount of the photopolymerizable compound (I). Within the above range, the coating adhesion to the substrate and chemical resistance during the manufacturing process are excellent.

[0155] (Photopolymerization initiator (J)) The photopolymerization initiator (J) can be appropriately selected from those that promote the polymerization reaction of the photopolymerizable compound by the action of light. In the present disclosure, it is preferable to contain an oxime ester-based photopolymerization initiator because it has excellent ultraviolet curability, color characteristics, chemical resistance, and developability.

[0156] The content of the photopolymerization initiator (J) is preferably 0.5 to 50 parts by weight relative to 100 parts by weight of the colorant (H), and more preferably 1 to 30 parts by weight from the viewpoints of photocurability and developability. When the photopolymerization initiator (J) is 1 part by weight or more, the adhesion to the substrate is excellent. Also, when the photopolymerization initiator (J) is 30 parts by weight or less, the resolution is excellent.

[0157] ·Optional ingredients The color layer composition may further contain other components, such as a sensitizer, a resin, a thermosetting compound, an antioxidant, an adhesion improver, a leveling agent, a curing agent, a curing accelerator, a storage stabilizer, a solvent, a dispersing aid, and a chain transfer agent.

[0158] Sensitizer Examples of the sensitizer include the same ones as those in the composition for the visible light shielding layer. Among the above sensitizers, particularly suitable sensitizers include thioxanthone derivatives, Michler's ketone derivatives, and carbazole derivatives. When using a sensitizer, the content of the sensitizer is preferably 3 to 60 parts by weight, and more preferably 5 to 50 parts by weight, based on 100 parts by weight of the photopolymerization initiator (J) from the viewpoints of photocurability and developability.

[0159] ·resin The colored layer composition may further contain a resin. The resin is preferably a transparent resin that has a transmittance of 80% or more in the entire wavelength range of 400 to 700 nm when a coating film having a thickness of 2 μm is formed, and the transmittance is preferably 95% or more. Examples of the resin include active energy ray curable resins and thermoplastic resins. From the viewpoint of patterning properties by photolithography, the resin preferably contains an alkali-soluble resin. Examples of the resin include the same as the binder resin (B).

[0160] The content of the resin is preferably 20 to 400 parts by weight, more preferably 50 to 250 parts by weight, based on 100 parts by weight of the colorant (H). When an appropriate amount is contained, a coating can be easily formed and good color characteristics can be easily obtained.

[0161] Antioxidants The color layer composition may contain an antioxidant. Examples of the antioxidant include those mentioned above. When an antioxidant is used, the antioxidant is preferably present in an amount of 0.5 to 5.0% by weight based on the total nonvolatile content of the color layer composition in terms of brightness and sensitivity.

[0162] Adhesion improver The color layer composition may contain an adhesion improver. Examples of the adhesion improver include those mentioned above. The adhesion improver can be used in an amount of 0.01 to 10 parts by weight, preferably 0.05 to 5 parts by weight, per 100 parts by weight of the colorant in the color layer composition.

[0163] Leveling agent The color layer composition may contain a leveling agent. Examples of the leveling agent include those mentioned above. The leveling agent is preferably used in an amount of 0.003 to 0.5% by weight based on the total non-volatile content of the color layer composition.

[0164] ·solvent The colored layer composition may contain a solvent. This makes it easy to adjust the viscosity of the colored layer composition, so that a coating film having a smooth surface can be easily formed. The same solvent as that exemplified in the visible light shielding layer composition can be used. The solvent is preferably used in an amount of 200 to 900 parts by weight, more preferably 300 to 570 parts by weight, per 100 parts by weight of the non-volatile content of the color layer composition, since it can adjust the viscosity of the color layer composition to an appropriate value and form a coating film with a uniform thickness as desired. The viscosity of the color layer composition is preferably 2.4 to 7.2 mPa·s, more preferably 3.4 to 6.4 mPa·s.

[0165] Dispersion aid The color layer composition may contain a dispersing aid such as a dye derivative, a resin-type dispersing agent, a surfactant, etc., as appropriate, in order to disperse the colorant in the colorant. The dispersing aid has a large effect of preventing reagglomeration of the colorant after dispersion, so that the color layer composition obtained by dispersing the colorant in the colorant carrier using the dispersing aid has good brightness and viscosity stability.

[0166] ((Dye Derivatives)) Examples of the dye derivatives include compounds in which a basic substituent, an acidic substituent, or a phthalimidomethyl group which may have a substituent has been introduced into an organic pigment, an anthraquinone, an acridone, or a triazine. For example, see JP-A-63-305173, JP-B-57-15620, JP-B-59-40172, JP-B-63-17102, JP-B-5-9469, and JP-A-2001-335717. Those described in JP-A-2003-128669, JP-A-2004-091497, JP-A-2007-156395, JP-A-2008-094873, JP-A-2008-094986, JP-A-2008-095007, JP-A-2008-195916, Japanese Patent No. 4585781, etc. can be used, and these can be used alone or in combination of two or more types.

[0167] The content of the dye derivative 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, based on 100 parts by weight of the colorant from the viewpoint of improving dispersibility, and is preferably 40 parts by weight or less, more preferably 35 parts by weight or less, from the viewpoint of heat resistance and light resistance.

[0168] ((Resin-type dispersant / surfactant)) The resin type dispersant may be the same as the resin type dispersant (F). The surfactant may be the same as the one exemplified in the composition for visible light shielding layer. When the resin type dispersant or surfactant is added, the amount is preferably 0.1 to 55 parts by weight, more preferably 0.1 to 45 parts by weight, based on 100 parts by weight of the colorant.

[0169] Chain transfer agent The color layer composition may contain a chain transfer agent. The chain transfer agent is as described above. The content of the chain transfer agent is preferably 0.5 to 10%, more preferably 1 to 8%, of the total nonvolatile content of the color layer composition.

[0170] Near infrared absorbing dye When the colored layer is to be the colored layer 7 having near-infrared light shielding properties shown in Fig. 4, the composition for colored layer contains a near-infrared absorbing dye. As the near-infrared absorbing dye, the near-infrared absorbing dye (E) represented by the above general formula (1) is preferable.

[0171] [substrate] The substrate 10 is a substrate on which electrodes for driving the organic EL layer, the near-infrared light receiving section, and the near-infrared light emitting section, and electrodes for inputting electrical signals from the near-infrared light receiving section are formed, and is preferably a silicon substrate. Each of the electrodes is formed in a TFT array, for example.

[0172] [Organic EL layer] The organic EL layer 30 is a multilayer structure formed by laminating a lower electrode, a light-emitting layer, and a transparent electrode, and may further include other layers. An example of the organic EL layer is a structure formed by laminating, in order from the substrate 10 side, a lower electrode, an organic layer including a light-emitting layer, and a transparent electrode, and airtightly covered with a sealing layer.

[0173] One of the lower electrode and the transparent electrode is an anode and the other is a cathode, and either may be an anode. The material of the anode may be, for example, nickel, silver, gold, platinum, palladium, selenium, rhodium, ruthenium, iridium, rhenium, tungsten, molybdenum, chromium, tantalum, niobium, or an alloy thereof, or tin oxide (SnO 2 ), indium tin oxide (ITO), zinc oxide, titanium oxide, etc. are used. The material of the cathode may be, for example, an alloy of an active metal such as Li, Mg, or Ca with a metal such as Ag, Al, or In, or a laminated structure of these. Also, a structure may be used in which a thin compound layer of an active metal such as Li, Mg, or Ca with a halogen such as fluorine or bromine, or oxygen, is inserted between the organic layer.

[0174] The organic layer has at least a white light-emitting layer, but is usually composed of multiple organic layers, and may have a charge injection layer such as a hole injection layer or an electron injection layer, a hole transport layer that transports holes to the white light-emitting layer, or a charge transport layer such as an electron transport layer that transports electrons to the white light-emitting layer. The organic layer may have any configuration from among all known configurations having a white light-emitting layer.

[0175] The light-emitting layer may be a known one that can emit white light. The white light-emitting characteristics may be such that the light is emitted in at least three regions: the red region (600 nm to 780 nm), the green region (475 nm to 600 nm), and the blue region (380 nm to 475 nm). The number of emission peaks is not necessarily three or more; for example, two emission peaks may be sufficient as long as the light is emitted in the above-mentioned regions. However, in order to obtain a wide color reproducibility, it is preferable to use a white light-emitting layer that has three or more emission peaks, and it is preferable that the white light-emitting layer has an emission peak in one or more of the above-mentioned three color regions.

[0176] The material constituting such a white light-emitting layer is not particularly limited as long as it emits fluorescence or phosphorescence. The light-emitting material may have hole transport properties or electron transport properties. Examples of the light-emitting material include dye-based materials, metal complex-based materials, and polymer-based materials.

[0177] Examples of the dye-based materials include cyclopentamine derivatives, tetraphenylbutadiene derivatives, triphenylamine derivatives, oxadiazole derivatives, pyrazoloquinoline derivatives, distyrylbenzene derivatives, distyrylarylene derivatives, silole derivatives, thiophene ring compounds, pyridine ring compounds, perinone derivatives, perylene derivatives, oligothiophene derivatives, triphimanylamine derivatives, oxadiazole dimers, and pyrazoline dimers.

[0178] Examples of the metal complex-based material include aluminum quinolinol complexes, benzoquinolinol beryllium complexes, benzoxazole zinc complexes, benzothiazole zinc complexes, azomethyl zinc complexes, porphyrin zinc complexes, and europium complexes; and metal complexes having a central metal such as Al, Zn, Be, or a rare earth metal such as Tb, Eu, Dy, and an oxadiazole, thiadiazole, phenylpyridine, phenylbenzimidazole, or quinoline structure, or the like, as a ligand.

[0179] Examples of the polymer-based materials include polyparaphenylenevinylene derivatives, polythiophene derivatives, polyparaphenylene derivatives, polysilane derivatives, polyacetylene derivatives, polyfluorene derivatives, polyvinylcarbazole derivatives, and polymerized versions of the above-mentioned dye-based materials and metal complex-based materials.

[0180] Examples of methods for forming the white light-emitting layer include vapor deposition, printing, inkjet printing, spin coating, casting, dipping, bar coating, blade coating, roll coating, gravure coating, flexographic printing, spray coating, and self-organization (layer-by-layer adsorption, self-organized monolayer). In particular, vapor deposition, spin coating, and inkjet printing are preferably used. The thickness of the white light-emitting layer is usually about 5 nm to 5 μm.

[0181] The organic EL layer may also include a hole injection layer between the white light emitting layer and the anode. By providing the hole injection layer, the injection of holes into the white light emitting layer is stabilized, and the light emitting efficiency can be increased. As a material for forming the hole injection layer, a material generally used for the hole injection layer of an organic EL element can be used. In addition, the material for forming the hole injection layer may be any material that has either hole injection properties or electron barrier properties.

[0182] Specifically, examples of materials for forming the hole injection layer include triazole derivatives, oxadiazole derivatives, imidazole derivatives, polyarylalkane derivatives, pyrazoline derivatives, pyrazolone derivatives, phenylenediamine derivatives, arylamine derivatives, amino-substituted chalcone derivatives, oxazole derivatives, styrylanthracene derivatives, fluorenone derivatives, hydrazone derivatives, stilbene derivatives, silazane derivatives, polysilane-based and aniline-based copolymers, and conductive polymer oligomers such as thiophene oligomers.

[0183] Furthermore, examples of materials for forming the hole injection layer include porphyrin compounds, aromatic tertiary amine compounds, styrylamine compounds, etc. The thickness of the hole injection layer is usually about 5 nm to 1 μm.

[0184] The organic EL layer may further include an electron injection layer between the white light emitting layer and the cathode. By providing the electron injection layer, the injection of electrons into the white light emitting layer can be stabilized, and the luminous efficiency can be improved.

[0185] Examples of materials for forming the electron injection layer include nitro-substituted fluorene derivatives, anthraquinodimethane derivatives, diphenylquinone derivatives, thiopyran dioxide derivatives, heterocyclic tetracarboxylic acid anhydrides such as naphthaleneperylene, carbodiimides, fluorenylidenemethane derivatives, anthraquinodimethane and anthrone derivatives, oxadiazole derivatives, thiazole derivatives in which the oxygen atom of the oxadiazole ring of an oxadiazole derivative is substituted with a sulfur atom, quinoxaline derivatives having a quinoxaline ring known as an electron-withdrawing group, metal complexes of 8-quinolinol derivatives such as tris(8-quinolinol)aluminum, phthalocyanines, metal phthalocyanines, and distyrylpyrazine derivatives.

[0186] 2. Manufacturing method for organic EL display devices The method for producing an organic EL display device according to the present disclosure is a method for producing the organic EL display device according to the first and second embodiments, characterized in that the colored layer, the visible light blocking layer, and the near-infrared light blocking layer are all formed at a temperature of 120° C. or less. According to this production method, even when a color filter is directly formed on an organic EL element, thermal damage to the organic EL element can be suppressed, and a step of bonding the organic EL element and the color filter is not required, thereby suppressing the occurrence of misalignment.

[0187] As a specific example of a method for manufacturing an organic EL display device, first, a laminated substrate including a near-infrared receiving section, a lower electrode, a light emitting layer, and a transparent electrode is prepared on a substrate. The method for preparing the laminated substrate is not particularly limited, and it can be manufactured by a known process. A sealing layer and / or an adhesive layer may be formed on the transparent electrode. The sealing layer can be made of a known curable resin, and an active energy ray curable resin is preferable, and a thermosetting resin may be used in combination. The ultraviolet ray curable resin is not particularly limited, but an acrylic resin that is sensitive to i-rays (wavelength 365 nm) is preferable. By forming the sealing layer, the surface on which the color filter is to be formed can be flattened.

[0188] The color filter is formed directly on the transparent electrode, the sealing layer or the adhesive layer. The color filter is preferably formed by a photolithography method. In the case of the photolithography method, the above-mentioned composition for the visible light shielding layer, the composition for the near infrared light shielding layer, and the compositions for the red, green and blue colored layers are prepared. In addition, a photosensitive composition for the black matrix may be prepared. As an example, first, a composition for visible light shielding layer is applied to form a coating film, which is then exposed, developed, and cured by heating to form a patterned visible light shielding layer. Next, a composition for a first color of colored layer is applied to form a coating film, which is then exposed, developed, and cured by heating to form a colored layer of the first color. By repeating the same process with compositions for colored layers of the second and third colors, three colored layers are formed. Next, a composition for near-infrared light shielding layer is applied to form a coating film, which is then exposed, developed, and cured by heating to form a patterned near-infrared light shielding layer on the colored layer, thereby obtaining a color filter.

[0189] The coating method can be appropriately selected from known methods such as spray coating, dip coating, bar coating, coal coating, and spin coating. The exposure method may be a method using ultraviolet light from a low pressure mercury lamp, a high pressure mercury lamp, a metal halide lamp, an electron beam, or the like as a light source through a mask having a predetermined pattern. A filter having a pattern can be obtained by removing the uncured photosensitive composition using a developer such as an alkaline developer. From the viewpoint of protecting the organic EL layer, the heat curing temperature is preferably 120° C. or less, and more preferably 100° C. or less. By using the photosensitive composition, sufficient curing can be achieved even at a low temperature of 120° C. or less. The thickness of each color filter is preferably from 0.1 to 5 μm, more preferably from 0.5 μm to 2.0 μm, and further preferably from 1.0 to 2.0 μm. As a result, an organic EL display device that has high brightness, high resolution, and can reduce driving power consumption can be obtained.

[0190] [Examples of manufacturing visible light shielding layer and near infrared light shielding layer] The visible light shielding layer and the near infrared shielding layer will be described below with reference to the embodiment of the manufacturing example. In the manufacturing example, "parts" and "%" respectively represent "parts by weight" and "% by weight". Also, "PGMAC" means methoxypropyl acetate. The method for measuring the weight average molecular weight (Mw) of the resin is as follows.

[0191] (Weight average molecular weight of resin (Mw)) The weight average molecular weight (Mw) of the resin is the polystyrene-equivalent weight average molecular weight (Mw) measured using a TSKgel column (manufactured by Tosoh Corporation) and a GPC (manufactured by Tosoh Corporation, HLC-8120GPC) equipped with an RI detector, using THF as the developing solvent.

[0192] [Production of composition for visible light shielding layer] <Production of binder resin solution> (Preparation of binder resin solution 1) A reaction vessel equipped with a thermometer, a cooling tube, a nitrogen gas inlet tube, a dropping tube and a stirrer was charged with 196 parts of cyclohexanone, heated to 80°C, and the atmosphere in the reaction vessel was replaced with nitrogen. From the dropping tube, a mixture of 20.0 parts of benzyl methacrylate, 17.2 parts of n-butyl methacrylate, 12.9 parts of 2-hydroxyethyl methacrylate, 12.0 parts of methacrylic acid, 20.7 parts of paracumylphenol ethylene oxide modified acrylate ("Aronix M110" manufactured by Toagosei Co., Ltd.), and 1.1 parts of 2,2'-azobisisobutyronitrile was added dropwise over 2 hours to polymerize. After the dropping was completed, the reaction was continued for another 3 hours, and then cooled to terminate the reaction. After cooling to room temperature, about 2 parts of the resin solution was sampled and dried by heating at 180°C for 20 minutes to measure the non-volatile content, and PGMAC was added so that the non-volatile content became 20% by weight to prepare binder resin solution 1. The weight average molecular weight (Mw) was 26,000.

[0193] <Method of manufacturing fine pigment> (Blue fine pigment (B1)) 200 parts of phthalocyanine blue pigment CI Pigment Blue 15:6 ("LIONOL BLUE 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 charged into a stainless steel 1-gallon kneader (manufactured by Inoue Seisakusho Co., Ltd.) and kneaded for 6 hours at 80° C. Next, this kneaded mixture was poured into 8000 parts of warm water, heated to 80° C. and stirred for 2 hours to form a slurry, which was then filtered and washed repeatedly to remove the sodium chloride and diethylene glycol, and then dried at 85° C. overnight to obtain a blue fine pigment (B1).

[0194] (Yellow micronized pigment (Y1)) 100 parts of isoindolinone yellow pigment CI Pigment Yellow 139 (BASF "PALIOTOL YELLOW D1819", hereinafter referred to as PY139), 800 parts of ground salt, and 180 parts of diethylene glycol were charged into a stainless steel 1-gallon kneader (Inoue Seisakusho Co., Ltd.) and kneaded for 4 hours at 70° C. This mixture was added to 3000 parts of warm water, heated to about 80° C. and stirred with a high-speed mixer for about 1 hour to form a slurry, filtered and washed repeatedly with water to remove salt and solvent, and then dried at 80° C. for 24 hours to obtain 96 parts of a yellow fine pigment (Y1).

[0195] (Fine purple pigment (V1)) 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 charged into a stainless steel 1-gallon kneader (manufactured by Inoue Seisakusho Co., Ltd.) and kneaded for 6 hours at 80° C. Next, this kneaded material was put into 8000 parts of warm water, heated to 80° C. and stirred for 2 hours to form a slurry, filtered and washed repeatedly to remove sodium chloride and diethylene glycol, and then dried at 85° C. for one day to obtain a dioxazine-based finely divided purple pigment (V1).

[0196] <Method of manufacturing pigment dispersion> (Preparation of pigment dispersion (BP-1)) The mixture below was stirred and mixed until homogeneous, and then dispersed for 5 hours using 1 mm diameter zirconia beads in a paint shaker SO400 (manufactured by Skandex). After that, 30.0 parts of methoxypropyl acetate was added, and the mixture was filtered through a 5 μm filter to obtain a pigment dispersion (BP-1). Blue fine pigment (B1): 14.0 parts Binder resin solution 1: 30.0 parts Methoxypropyl acetate: 26.0 parts

[0197] (Preparation of pigment dispersions (YP1, VP-1) Pigment dispersions (YP1, VP-1) were obtained in the same manner as pigment dispersion (BP-1), except that the compositions and blending amounts (parts by weight) were changed to those shown in Table 1. The blending amounts in the table are in parts by weight.

[0198] [Table 1]

[0199] <Production of composition for visible light shielding layer (BLK-1)> The following mixture (total 100 parts) was stirred and mixed to be homogeneous, and then filtered through a 1.0 μm filter to obtain a composition for visible light shielding layer (BLK-1). Pigment dispersion (BP-1): 22.5 parts Pigment dispersion (VP-1): 17.4 parts Pigment dispersion (YP-1): 24.4 parts Binder resin solution 1: 0.9 parts Photopolymerizable monomer A: 4.2 parts Toagosei "Aronix M-309" Photopolymerization initiator A: 0.7 parts BASF "Irgacure OXE-02" Leveling agent solution: 1.0 parts Toray Dow Corning "FZ-2122" (a solution of 1 part (100% non-volatile content) diluted with 99 parts cyclohexanone) Solvent: 28.9 parts Methoxypropyl acetate

[0200] [Production of composition for near-infrared light shielding layer] <Method for producing near-infrared absorbing dye (E)> 400 parts of toluene were mixed with 40.0 parts of 1,8-diaminonaphthalene, 25.1 parts of cyclohexanone, and 0.087 parts of p-toluenesulfonic acid monohydrate, and the mixture was heated and stirred in a nitrogen gas atmosphere and reacted under reflux for 3 hours. Water generated during the reaction was removed from the system by azeotropic distillation. After the reaction was completed, the dark brown solid obtained by distilling toluene was extracted with acetone and purified by recrystallization from a mixed solvent of acetone and ethanol. The obtained brown solid was dissolved in a mixed solvent of 240 parts of toluene and 160 parts of n-butanol. Next, 13.8 parts of 3,4-dihydroxy-3-cyclobutene-1,2-dione was added, and the mixture was heated and stirred in a nitrogen gas atmosphere and reacted under reflux for 8 hours. The water generated during the reaction was removed from the reaction system by azeotropic distillation. After the reaction was completed, the solvent was distilled, and 200 parts of hexane was added while stirring the resulting reaction mixture. The resulting black-brown precipitate was filtered off, washed with hexane, ethanol, and acetone, and dried under reduced pressure to obtain 61.9 parts of near-infrared absorbing dye (E) (yield: 92%). The compound was identified by mass spectrometry using TOF-MS.

[0201] [ka]

[0202] <Method of producing resin-type dispersant (F)> (Resin-type dispersant (F) solution): Graft copolymer In a reaction vessel equipped with a gas inlet tube, a thermometer, a condenser, and a stirrer, 150 parts of PGMAC and 100 parts of n-butyl acrylate were charged and replaced with nitrogen gas. 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 and reacted for 10 hours. It was confirmed that 95% or more had reacted by measuring the non-volatile content, and a reaction product (dispersant 1a) with a number average molecular weight of 3900 and a weight average molecular weight of 7900 was obtained. To the above reaction product, 7.9 parts of 2-methacryloyloxyethyl isocyanate, 0.05 parts of methyldibutyltin dilaurate, and 0.05 parts of methylhydroquinone were added, and the reaction vessel was heated to 100° C. and reacted for 4 hours. After that, it was cooled to 40° C. to obtain a reaction product (resin-type dispersant 1b solution).

[0203] 122 parts of PGMAC was charged into a reaction vessel equipped with a gas inlet tube, a condenser, an agitator, and a thermometer, and the temperature was raised to 100°C while replacing with nitrogen. 262.5 parts of the above reaction product (resin type dispersant 1b solution), 150 parts of pentamethylpiperidyl methacrylate (ADEKA Corporation, Adekastab LA-82), 10 parts of hydroxyethyl methacrylate, and 4 parts of 2,2'-azobis (2,4-dimethylbutyronitrile) were charged into a dropping vessel, stirred until homogenous, and then dropped into the reaction vessel over 2 hours to carry out the reaction. The reaction was then continued at the same temperature for 3 hours, and then cooled to terminate the reaction. After sampling to confirm the non-volatile content, PGMAC was added to adjust the non-volatile content to 40% by mass. In this way, a resin type dispersant (F) solution was obtained, which is a graft copolymer having a tertiary amino group with an amine value of 42 mgKOH / g per non-volatile content and a weight average molecular weight (Mw) of 23,500.

[0204] <Method for producing binder resin (G) solution> A separable 4-neck flask was fitted with a thermometer, a cooling tube, a nitrogen gas inlet tube, and a stirrer. 70.0 parts of cyclohexanone was charged into the reaction vessel, which was then heated to 80°C and replaced with nitrogen in the reaction vessel. From the dropping tube, 12.4 parts of n-butyl methacrylate, 4.6 parts of 2-hydroxyethyl methacrylate, 4.3 parts of methacrylic acid, 7.3 parts of paracumylphenol ethylene oxide modified acrylate ("Aronix M110" manufactured by Toagosei Co., Ltd.) (weight ratio of n-butyl methacrylate / 2-hydroxyethyl methacrylate / methacrylic acid / paracumylphenol ethylene oxide modified acrylate: 10.5 / 15.5 / 17.1 / 25.0), and 0.7 parts of 2,2'-azobisisobutyronitrile were added dropwise over 2 hours to carry out the reaction. After the addition was completed, the reaction was continued for another 3 hours and then terminated by cooling. After cooling to room temperature, about 2 g of the resin solution was sampled and dried by heating at 180°C for 20 minutes to measure the non-volatile content. Propylene glycol monoethyl ether acetate was added so that the non-volatile content became 20% by weight, and a binder resin (G) solution with an acid value of 110 mgKOH / g and a weight average molecular weight (Mw) of 10,000 b was prepared.

[0205] (Near infrared light shielding dispersion (E-1)) The mixture of the following composition was stirred and mixed uniformly, then dispersed in an Eiger mill using zirconia beads with a diameter of 0.5 mm for 3 hours, and then filtered through a 0.5 μm filter to produce a near-infrared shading dispersion (E-1) with a non-volatile content of 20.0%. Near infrared absorbing dye (E): 12.5 parts Resin-type dispersant (F) solution: 9.5 parts Binder resin (G) solution: 18.5 parts Methoxypropyl acetate: 59.5 parts

[0206] <Production of composition for near-infrared ray shielding layer> The following mixture was stirred and mixed to be homogeneous, and then filtered through a 1.0 μm filter to obtain a composition for near infrared ray shielding layer (IR-1). Near infrared ray shielding dispersion (E-1): 27.5 parts Binder resin (G) solution: 17.8 parts Photopolymerizable monomer (Toagosei Co., Ltd. "Aronix M-309"): 6.8 parts Photopolymerization initiator (BASF oxime ester photopolymerization initiator "OXE-02"): 0.6 parts Leveling Agent Toray Dow Corning "FZ-2122" (a solution of 1 part (100% non-volatile content) diluted with 99 parts cyclohexanone) Solvent: 1.0 parts Methoxypropyl acetate: 43.3 parts

[0207] [Production Example 1: Preparation of visible light shielding layer] The obtained composition for visible light blocking layer (BLK-1) was applied onto a glass substrate measuring 100 mm in length, 100 mm in width, and 0.7 mm in thickness using a spin coater, then heated at 100°C for 15 minutes and allowed to cool, yielding a test substrate 1 with a film thickness of 1.0 μm.

[0208] <Measurement of light transmittance of visible light shielding layer> The light transmittance of the obtained test substrate 1 at wavelengths of 400 to 1000 nm was measured using a microspectrophotometer (Hitachi High-Tech Science Corporation, "U-3900"). The spectroscopic data is shown in Figure 9. Table 2 also shows the maximum light transmittance at wavelengths of 400 to 620 nm (Tmax(400-620 nm)), the maximum light transmittance at wavelengths of 620 to 730 nm (Tmax(620-730 nm)), and the minimum light transmittance at wavelengths of 830 to 1000 nm (Tmin(830-1000 nm)).

[0209] [Table 2]

[0210] [Production Example 2: Preparation of near-infrared absorbing layer] The obtained composition for near-infrared shading layer (IR-1) was applied onto a glass substrate measuring 100 mm in length, 100 mm in width, and 0.7 mm in thickness using a spin coater, and then heated at 100°C for 15 minutes and allowed to cool to obtain a test substrate 2 with a film thickness of 0.7 μm.

[0211] <Measurement of light transmittance of near-infrared absorbing layer> The light transmittance of the obtained test substrate 2 at wavelengths of 400 to 1000 nm was measured using a microspectrophotometer (Hitachi High-Tech Science Corporation, "U-3900"). The spectroscopic data is shown in Figure 10. Table 3 shows the average light transmittance at wavelengths of 450 to 600 nm, the maximum absorption wavelength, and the transmittance.

[0212] [Table 3]

[0213] As shown in Table 2 and Fig. 9, the visible light shielding layer of Production Example 1 has excellent visible light shielding properties and excellent near-infrared transmittance. Moreover, as shown in Table 3 and Fig. 10, the near-infrared shielding layer of Production Example 2 has excellent near-infrared shielding properties and excellent visible light transmittance. The organic EL display device of the present disclosure combines such a visible light shielding layer and a near-infrared shielding layer to form a color filter having a layer structure as shown in Figs. 1 to 5, thereby suppressing the incidence of light that causes noise in the near-infrared receiving section while maintaining the high brightness, high resolution, and color reproducibility of the display device. [Industrial Applicability]

[0214] The organic EL display device of the present disclosure has high brightness, high resolution, excellent color reproducibility, and allows for reduced driving power, and can be made small and lightweight, and is therefore suitable for Micro-OLED, and can be suitably used as a display device for electronic devices such as smart glasses, head-mounted displays, and electronic viewfinders. [Explanation of symbols]

[0215] 4: colored layer, 4B: blue layer, 4G: green layer, 4R: red layer, 5: visible light shielding layer, 6: near-infrared light shielding layer, 7: colored layer, 8: light shielding layer, 10: substrate, 20: covering film, 21: near-infrared light receiving section, 22: near-infrared light emitting section, 30: organic EL layer, 40: color filter, 50: wiring layer, 61: near-infrared light, 62: visible light, 63: near-infrared light, 64: near-infrared light, 100: organic EL display device.

Claims

1. A near-infrared receiving section, a lower electrode, a light-emitting layer, a transparent electrode, and a color filter are disposed on a substrate in this order; the color filter has a patterned colored layer and a visible light blocking layer provided on the near-infrared light receiving section, an organic electroluminescence display device having a near-infrared light-shielding layer on the colored layer, between the colored layer and the transparent electrode, or integrated with the colored layer;

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

3. The organic electroluminescence display device according to claim 1 , further comprising the near-infrared light-shielding layer on the colored layer.

4. The organic electroluminescence display device according to claim 1 , wherein the thickness of the visible light blocking layer is greater than the total thickness of the colored layer and the near-infrared light blocking layer.

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

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

7. the visible light-shielding layer is a cured product of a composition for a visible light-shielding layer, the composition containing an organic pigment (A), a binder resin (B), a photopolymerization initiator (C) and a photopolymerizable compound (D), The organic pigment (A) includes a blue pigment, a yellow pigment, and a purple pigment, 2. The organic electroluminescence display device according to claim 1, wherein the content of the organic pigment is, based on the organic pigment (A), 32 to 45% by weight of the blue pigment, 30 to 40% by weight of the yellow pigment, and 20 to 30% by weight of the violet pigment.

8. 2. The organic electroluminescence display device according to claim 1, wherein the near-infrared light-shielding layer is a cured product of a composition for near-infrared light-shielding layer, the composition comprising: a near-infrared absorbing dye (E) represented by the following general formula (1); a resin-type dispersant (F) having an amine value of 20 mgKOH / g to 200 mgKOH / g; and a binder resin (G) having a weight-average molecular weight of 5,000 to 40,000 and an acid value of 100 mgKOH / g to 130 mgKOH / g: 【Chemistry 1】 X １ ~X １０ each independently represents a hydrogen atom, an alkyl group which may have a substituent, an alkenyl group which may have a substituent, an aryl group which may have a substituent, an aralkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryloxy group which may have a substituent, an amino group, a substituted amino group, a sulfo group, -SO ２ N.R. １ R ２ , -COOR １ , -CONR １ R ２ , a nitro group, a cyano group, or a halogen atom; X １ ~X １０ may be bonded to each other to form a ring. R １ and R ２ each independently represents a hydrogen atom or an alkyl group which may have a substituent.

9. A method for manufacturing an organic EL display device according to any one of claims 1 to 8, comprising the steps of: The colored layer, the visible light shielding layer, and the near-infrared light shielding layer are formed at a temperature of 120° C. or lower.

10. A laminated substrate including a near-infrared receiving unit, a lower electrode, a light-emitting layer, and a transparent electrode is prepared on a substrate; The method for producing an organic EL display device according to claim 9 , further comprising forming a coating film of a color layer composition on the laminated substrate.

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