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WO2015186359A1 - Élément optique de commande de longueur d'onde, dispositif électroluminescent et appareil d'éclairage - Google Patents

Élément optique de commande de longueur d'onde, dispositif électroluminescent et appareil d'éclairage Download PDF

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Publication number
WO2015186359A1
WO2015186359A1 PCT/JP2015/002815 JP2015002815W WO2015186359A1 WO 2015186359 A1 WO2015186359 A1 WO 2015186359A1 JP 2015002815 W JP2015002815 W JP 2015002815W WO 2015186359 A1 WO2015186359 A1 WO 2015186359A1
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WIPO (PCT)
Prior art keywords
dye
optical member
wavelength
fine particles
containing fine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/JP2015/002815
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English (en)
Japanese (ja)
Inventor
俊平 藤井
哲 山内
郁子 青木
佐智子 土井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Priority to JP2016525705A priority Critical patent/JP6213938B2/ja
Publication of WO2015186359A1 publication Critical patent/WO2015186359A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/851—Wavelength conversion means

Definitions

  • the present invention relates to a wavelength control optical member, a light emitting device, and a lighting fixture. Specifically, the present invention relates to a wavelength control optical member, a light emitting device, and a lighting fixture that have improved durability of the contained pigment.
  • the infrared absorbing filter used in the liquid crystal display device contains a near infrared absorbing dye, but this near infrared absorbing dye also has low light resistance. Therefore, in order to improve the light resistance of the near-infrared absorbing dye, a near-infrared absorbing filter in which the near-infrared absorbing dye is contained in fine particles has been proposed (see, for example, Patent Document 2).
  • the present invention has been made in view of such problems of the conventional technology. And the objective of this invention is providing the wavelength control optical member, light-emitting device, and lighting fixture which improved durability, especially light resistance and heat resistance of a pigment
  • the wavelength controlling optical member according to the first aspect of the present invention includes a matrix resin and pigment-containing fine particles dispersed inside the matrix resin.
  • the dye-containing fine particles contain a dye having a maximum absorption wavelength within a range of 400 nm to 650 nm, a singlet oxygen quencher, an antioxidant, and an ultraviolet absorber.
  • the wavelength control optical member according to the second aspect of the present invention is the optical member according to the first aspect, wherein the matrix resin contains at least one of the following resins. That is, the matrix resin contains at least one selected from the group consisting of acrylic resins, polycarbonate resins, acrylic-styrene copolymers, styrene resins, silicone resins, and cycloolefin resins.
  • the wavelength control optical member according to the third aspect of the present invention is the optical member according to the first or second aspect, the dye-containing fine particles, the dye, the singlet oxygen quencher, the antioxidant and the ultraviolet absorber are It is coated with at least one of the following materials. That is, the dye, the singlet oxygen quencher, the antioxidant, and the ultraviolet absorber are coated with at least one of a hydrolysis condensate of alkoxysilane and polysilazane.
  • the wavelength control optical member according to a fourth aspect of the present invention is the optical member according to any one of the first to third aspects, wherein the dye is selected from the group consisting of phthalocyanine-based, tetraazaporphyrin-based and porphyrin-based. At least one.
  • the wavelength control optical member according to the fifth aspect of the present invention is the optical member according to any one of the first to fourth aspects, wherein the average particle size of the dye-containing fine particles is 100 nm to 30 ⁇ m.
  • a light emitting device includes a light emitting element, a wavelength conversion member that converts the wavelength of light emitted from the light emitting element, and the wavelength control optical member according to any one of the first to fifth aspects. .
  • a lighting fixture according to a seventh aspect of the present invention includes the light emitting device according to the sixth aspect.
  • FIG. 1 is a schematic view showing an example of a wavelength control optical member according to an embodiment of the present invention.
  • A is the schematic which shows the pigment
  • (b) is the schematic which shows an example of pigment
  • FIG. 2 is a schematic view showing another example of the dye-containing fine particles dispersed in the wavelength control optical member.
  • FIG. 3 is a schematic diagram illustrating an example of a light emitting device according to an embodiment of the present invention.
  • FIG. 4 is a perspective view showing an example of a lighting fixture according to the embodiment of the present invention.
  • FIG. 1 is a schematic view showing an example of a wavelength control optical member according to an embodiment of the present invention.
  • A is the schematic which shows the pigment
  • (b) is the schematic which shows an example of pigment
  • FIG. 5 is a schematic diagram illustrating a configuration of a lighting fixture according to the embodiment of the present invention.
  • A is a disassembled perspective view of the lamp in a lighting fixture
  • (b) is a schematic sectional drawing of an LED module
  • (c) is sectional drawing which shows the filter used for a lamp.
  • the wavelength control optical member, the light emitting device, and the lighting fixture according to the present embodiment will be described in detail with reference to the drawings.
  • the dimension ratio of drawing quoted by the following embodiment is exaggerated on account of description, and may differ from an actual ratio.
  • the wavelength control optical member 10 includes a matrix resin 1 and pigment-containing fine particles 2 dispersed in the matrix resin 1. Further, the dye-containing fine particles 2 contain a dye 3 having a maximum absorption wavelength within a range of 400 nm to 650 nm, a singlet oxygen quencher 4, an antioxidant 5, and an ultraviolet absorber 6.
  • the wavelength control optical member 10 of the present embodiment includes a dye 3 having a maximum absorption wavelength within a range of 400 nm to 650 nm, a singlet oxygen quencher 4, an oxidation resin, and a matrix resin 1.
  • the inhibitor 5 is dispersed.
  • the distances between the singlet oxygen quencher 4 and the antioxidant 5 and the dye 3 are too far apart.
  • the effects of the singlet oxygen quencher 4 and the antioxidant 5 do not sufficiently reach the dye 3, and the deterioration of the dye 3 cannot be suppressed.
  • the dye 3, the singlet oxygen quencher 4, and the antioxidant 5 are contained inside the dye-containing fine particles 2. That is, the dye 3, the singlet oxygen quencher 4 and the antioxidant 5 as the deterioration suppressing additive are enclosed in the dye-containing fine particles 2.
  • the dye-containing fine particles 2 are dispersed in the matrix resin 1.
  • the dye-containing fine particles 2 contain an ultraviolet absorber 6 as a deterioration inhibiting additive in addition to the dye 3, the singlet oxygen quencher 4 and the antioxidant 5. Therefore, the ultraviolet absorber 6 is disposed in the vicinity of the dye 3 and the ultraviolet light hardly reaches the dye 3, so that it is possible to suppress deterioration of the dye 3 due to absorption of the ultraviolet light.
  • the dye 3 according to the present embodiment is not particularly limited as long as it has a maximum absorption wavelength in the range of 400 nm to 650 nm.
  • the dye 3 for example, at least one selected from the group consisting of phthalocyanine, tetraazaporphyrin, and porphyrin can be used.
  • the phthalocyanine dye include CI Direct Blue 86, 87, 189, and 199.
  • the phthalocyanine dye include CI Acid Blue 249.
  • tetraazaporphyrin-based dyes include TAP-2, TAP-18, and TAP-45 (manufactured by Yamada Chemical Co., Ltd.).
  • porphyrin pigments examples include 5,10,15,20-tetraphenyl-21H, 23H-porphyrin (manufactured by Wako Chemical Co., Ltd.). These pigment
  • dyes may be used individually by 1 type, and may be used in combination of 2 or more type.
  • the singlet oxygen quencher 4 is not particularly limited as long as oxygen in the air is activated by light energy to trap singlet oxygen and inactivate singlet oxygen.
  • Examples of singlet oxygen quenchers include transition metal complexes, dyes (infrared absorbing dyes), amines, phenols, sulfides, and the like.
  • a dialkyl phosphate, a dialkyl dithiocarbanate, benzene dithiol, or a similar dithiol is exemplified as a ligand, and nickel, copper, or cobalt is exemplified as a central metal.
  • the dyes include polymethine dyes, cyanine dyes, azurenium dyes, pyrylium dyes, squarylium dyes, croconium dyes, aminium dyes, imonium dyes, and diimonium dyes.
  • these singlet oxygen quenchers may be used individually by 1 type, and may be used in combination of 2 or more types.
  • the antioxidant 5 according to the present embodiment is not particularly limited as long as it can suppress the auto-oxidation of the dye 3.
  • the antioxidant include phenolic antioxidants, amine-based antioxidants, phosphorus-based antioxidants, and sulfur-based antioxidants.
  • phenol-based antioxidants and amine-based antioxidants are preferable, and hindered amines are particularly preferable among the amine-based antioxidants.
  • phenolic antioxidants examples include 2,6-t-butyl-4-methylphenol and n-octadecyl-3- (3'5'-di-t-butyl4'-hydroxyphenyl) propionate.
  • examples of the phenolic antioxidant include tetrakis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionyloxymethyl)] methane.
  • examples of amine-based antioxidants include ADK STAB (registered trademark) LA-77, LA-57, LA-52, LA-62, LA-63, LA-67, and LA-68 (manufactured by ADEKA Corporation). .
  • amine antioxidant examples include TINUVIN (registered trademark) 123, TINUVIN 144, TINUVIN 622, TINUVIN 765, and TINUVIN 944 (manufactured by BASF Japan Ltd.).
  • these antioxidants may be used individually by 1 type, and may be used in combination of 2 or more type.
  • the ultraviolet absorber 6 is not particularly limited as long as it has a characteristic of low transmittance in the wavelength range of 280 nm to 360 nm.
  • the UV absorber include triazine UV absorbers, benzophenone UV absorbers, benzotriazole UV absorbers, cyanoacrylate UV absorbers, hydroxybenzoate UV absorbers, and the like.
  • triazine ultraviolet absorbers examples include 2,4-bis [hydroxy-4-butoxyphenyl] -6- (2,4-dibutoxyphenyl) -1,3,5-triazine.
  • 2- (2-hydroxy-4-hydroxymethylphenyl) -4,6-diphenyl-1,3,5-triazine, 2- (2-hydroxy-4-hydroxymethylphenyl) -4,6-bis ( 2,4-dimethylphenyl) -1,3,5-triazine and the like can also be mentioned.
  • benzophenone ultraviolet absorber examples include 2,2′-dihydroxy-4,4′-di (hydroxymethyl) benzophenone, 2,2′-dihydroxy-4,4′-di (2-hydroxyethyl) benzophenone, and the like. It is done.
  • Benzotriazole ultraviolet absorbers include 2- [2′-hydroxy-5 ′-(hydroxymethyl) phenyl] -2H-benzotriazole, 2- [2′-hydroxy-5 ′-(2-hydroxyethyl) phenyl ] -2H-benzotriazole and the like.
  • Examples of the cyanoacrylate ultraviolet absorber include 2-ethylhexyl-2-cyano-3,3′-diphenyl acrylate, ethyl-2-cyano-3,3′-diphenyl acrylate, and the like.
  • Examples of hydroxybenzoate ultraviolet absorbers include phenyl salicylate, 4-t-butylphenyl salicylate, 2,5-t-butyl-4-hydroxybenzoic acid n-hexadecyl ester, and the like. In addition, these ultraviolet absorbers may be used individually by 1 type, and may be used in combination of 2 or more type.
  • the pigment 3, the singlet oxygen quencher 4, the antioxidant 5, and the ultraviolet absorber 6 are coated with the particulate material 7 inside the pigment-containing fine particles 2.
  • a particulate material 7 is preferably a resin composed of at least one of a hydrolysis-condensation product of alkoxysilane and polysilazane. These resins have high transmittance in the visible light region of 380 nm to 780 nm and can be further granulated more easily.
  • An alkoxysilane hydrolysis condensate is a condensate obtained by hydrolyzing an alkoxysilane and then dehydrating and condensing it.
  • Specific examples of the alkoxysilane include, for example, triphenylethoxysilane, trimethylethoxysilane, triethylethoxysilane, triphenylmethoxysilane, triethylmethoxysilane, and ethyldimethylmethoxysilane.
  • methyldiethylmethoxysilane ethyldimethylethoxysilane, methyldiethylethoxysilane, phenyldimethylmethoxysilane, phenyldiethylmethoxysilane, phenyldimethylethoxysilane, phenyldiethylethoxysilane.
  • methyldiphenylmethoxysilane ethyldiphenylmethoxysilane
  • methyldiphenylethoxysilane methyldiphenylethoxysilane
  • ethyldiphenylethoxysilane tert-butoxytrimethylsilane, and butoxytrimethylsilane.
  • vinyltrimethoxysilane vinyltriethoxysilane, ⁇ - (3,4-epoxycyclohexyl) ethyltrimethoxysilane, ⁇ -glycidoxypropyltrimethoxysilane, and ⁇ -methacryloxypropyltriethoxysilane.
  • Examples also include N- ⁇ (aminoethyl) ⁇ -aminopropyltrimethoxysilane, N- ⁇ (aminoethyl) ⁇ -aminopropyltriethoxysilane, ⁇ -aminopropyltrimethoxysilane, and ⁇ -aminopropyltriethoxysilane.
  • Examples also include methyltriacetoxysilane, ethyltriacetoxysilane, N- ⁇ -phenyl- ⁇ -aminopropyltrimethoxysilane, ⁇ -chloropropyltrimethoxysilane, and ⁇ -mercaptopropyltrimethoxysilane.
  • Examples also include triethoxysilane, trimethoxysilane, triisopropoxysilane, tri-n-propoxysilane, triacetoxysilane, tetramethoxysilane, tetraethoxysilane, tetra-n-propoxysilane, and tetraisopropoxysilane.
  • the hydrolysis-condensation product of alkoxysilane may be used individually by 1 type, and may be used in combination of 2 or more type.
  • Polysilazane is a polymer having “— (SiH 2 —NH) —” as a repeating unit, and examples thereof include chain polysilazane and cyclic polysilazane. At this time, all or part of H may be substituted with a substituent.
  • Examples of the chain polysilazane include perhydropolysilazane, polymethylhydrosilazane, polyN-methylsilazane, polyN- (triethylsilyl) allylsilazane, polyN- (dimethylamino) cyclohexylsilazane, and phenylpolysilazane.
  • polysilazane may be used individually by 1 type, and may be used in combination of 2 or more type.
  • a resin that stably disperses the dye-containing fine particles 2 and has a high transmittance in the visible light region of 380 nm to 780 nm can be used.
  • Such a matrix resin 1 contains at least one selected from the group consisting of acrylic resins, polycarbonate resins, acrylic-styrene copolymers, styrene resins, silicone resins and cycloolefin resins. preferable.
  • the acrylic resin is obtained by polymerizing a (meth) acrylic monomer as a main component, and may contain another monomer copolymerizable with the (meth) acrylic monomer.
  • a resin obtained by polymerizing an acrylic monomer can be used. Examples of such acrylic monomers include methyl (meth) acrylate, ethyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, and cyclohexyl (meth) acrylate.
  • ⁇ -carboxyethyl (meth) acrylate diethylene glycol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, triethylene glycol di (meth) acrylate, and tripropylene glycol di (meth) acrylate.
  • trimethylolpropane tri (meth) acrylate pentaerythritol tri (meth) acrylate
  • 1,6-hexanediol diglycidyl ether di (meth) acrylate 1,6-hexanediol diglycidyl ether di (meth) acrylate.
  • Bisphenol A diglycidyl ether di (meth) acrylate, neopentyl glycol diglycidyl ether di (meth) acrylate, dipentaerythritol hexa (meth) acrylate, and tricyclodecanyl (meth) acrylate are also included.
  • an acrylic monomer may be used individually by 1 type, and may be used in combination of 2 or more type.
  • (meth) acrylic includes acrylic and methacrylic
  • “(meth) acrylate” includes acrylate and methacrylate.
  • polycarbonate resin examples include aromatic polycarbonate polymers obtained by reacting dihydric phenol with phosgene or a carbonic acid diester compound, and aromatic polycarbonate resins that are copolymers thereof.
  • polycarbonate-based resin also include an aliphatic polycarbonate resin obtained by a copolymer of carbon dioxide and epoxide.
  • examples of the polycarbonate-based resin include aromatic-aliphatic polycarbonates obtained by copolymerizing these resins.
  • linear aliphatic divalent carboxylic acids such as adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, decanedicarboxylic acid and the like can also be mentioned as copolymer monomers for polycarbonate resins.
  • a polycarbonate-type resin may be used individually by 1 type, and may be used in combination of 2 or more type.
  • the acrylic-styrene copolymer is obtained by polymerizing a (meth) acrylic monomer and a styrene monomer as main components.
  • the acrylic-styrene copolymer may contain a (meth) acrylic monomer and another monomer copolymerizable with the styrene monomer.
  • Examples of the acryl-styrene copolymer include styrene- (meth) acrylic acid ester copolymer, styrene-diethylaminoethyl methacrylate copolymer, and styrene-butadiene-acrylic acid ester copolymer.
  • a styrene-butadiene copolymer, a styrene-butadiene-chlorinated paraffin copolymer, or a styrene-methyl methacrylate copolymer can also be used.
  • the styrene resin is obtained by polymerizing a styrene monomer as a main component.
  • the styrene monomer include styrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, ⁇ -methylstyrene, and p-methoxystyrene.
  • p-tert-butylstyrene, p-phenylstyrene, o-chlorostyrene, m-chlorostyrene, and p-chlorostyrene are also included. These styrenic monomers may be used alone or in combination of two or more.
  • the silicone resin is a resin having a three-dimensional network structure by crosslinking a linear polymer composed of siloxane bonds.
  • silicone resins include dimethyl silicones whose side chains are composed of, for example, methyl groups, and aromatic silicones that are partially substituted with aromatic molecules.
  • aromatic silicone is particularly preferable as the silicone resin.
  • the cycloolefin resin is a resin having a main chain composed of carbon-carbon bonds and having a cyclic hydrocarbon structure in at least a part of the main chain.
  • examples of the cycloolefin resin include an addition copolymer of ethylene and norbornene, an addition copolymer of ethylene and tetracyclododecene, and the like.
  • the average particle diameter of the dye-containing fine particles 2 is preferably 50 nm to 30 ⁇ m, and more preferably 100 nm to 30 ⁇ m.
  • the average particle diameter of the dye-containing fine particles 2 is within this range, the singlet oxygen quencher 4, the antioxidant 5 and the ultraviolet absorber 6 can always be arranged in the vicinity of the dye 3. Therefore, it is possible to efficiently suppress the deterioration of the dye 3.
  • the average particle diameter of the dye-containing fine particles 2 can be measured by observing the cross section of the wavelength control optical member 10 using a scanning electron microscope (SEM), a transmission electron microscope (TEM), or the like.
  • the wavelength control optical member 10 includes the matrix resin 1 and the dye-containing fine particles 2 dispersed inside the matrix resin 1.
  • the dye-containing fine particles 2 contain a dye 3 having a maximum absorption wavelength within a range of 400 nm to 650 nm, a singlet oxygen quencher 4, an antioxidant 5, and an ultraviolet absorber 6. Therefore, in the vicinity of the dye 3, the singlet oxygen quencher 4 inactivates the singlet oxygen, the antioxidant 5 suppresses the auto-oxidation of the dye, and the ultraviolet absorber 6 prevents the ultraviolet light 6 from reaching the dye 3. Suppress. As a result, it is possible to improve the durability of the dye 3, particularly the light resistance and heat resistance, and to improve the stability of the dye.
  • the dye 3 is coated with the particulate material 7, and the dye-containing fine particles 2 are dispersed inside the matrix resin 1, the dye 3 is difficult to come into contact with oxygen in the atmosphere. As a result, it is possible to further suppress oxidation of the dye 3 due to contact with oxygen.
  • the singlet oxygen quencher 4, the antioxidant 5, the ultraviolet absorber 6, and the particulate material 7 are difficult to inhibit light absorption in the visible light region by the dye 3. Therefore, even when these are arranged in the vicinity of the dye 3, the spectral characteristics of the dye 3 can be maintained.
  • the dye-containing fine particles 2 may contain the dye 3, the singlet oxygen quencher 4, the antioxidant 5 and the ultraviolet absorber 6 inside, and the structure of the particles. Is not particularly limited. However, from the viewpoint of further suppressing the arrival of ultraviolet rays with respect to the dye 3, it is preferable that the dye 3 is arranged at the center of the dye-containing fine particles 2 and the ultraviolet absorber 6 is arranged at the outer periphery of the dye-containing fine particles 2.
  • the dye-containing fine particle 2A may have a core-shell structure having a core portion 8 and a shell portion 9 covering the periphery of the core portion 8.
  • the core portion 8 preferably contains the dye 3, the singlet oxygen quencher 4 and the antioxidant 5, and the shell portion 9 preferably contains the ultraviolet absorber 6.
  • the singlet oxygen quencher 4 and the antioxidant 5 are disposed together with the dye 3 in the core portion 8, whereby the oxidation of the dye 3 can be suppressed.
  • the ultraviolet absorber 6 is disposed on the outer periphery of the dye 3, the short wavelength light is absorbed by the shell portion 9 and the short wavelength light is difficult to reach the dye 3, thereby further suppressing deterioration of the dye 3. It becomes possible to do.
  • the core 8 may contain an ultraviolet absorber 6 in addition to the dye 3, the singlet oxygen quencher 4 and the antioxidant 5.
  • the content of the ultraviolet absorber 6 is preferably higher in the shell portion 9 than in the core portion 8.
  • the same material as the particulate material 7 can be used as the resin covering the dye 3, the singlet oxygen quencher 4 and the antioxidant 5.
  • the same material as that of the particleizing material 7 can be used for the resin covering the ultraviolet absorbent 6.
  • the shell portion 9 is made of a material having a high gas barrier property and further suppresses contact between the dye 3 and oxygen.
  • a material having such a gas barrier property for example, a high gas barrier resin such as polyvinylidene chloride (PVDC) or polyvinyl alcohol (PVA) can be used.
  • PVDC polyvinylidene chloride
  • PVA polyvinyl alcohol
  • metal oxides such as silica and derivatives thereof can also be used.
  • the manufacturing method of the wavelength control optical member according to the present embodiment is not particularly limited as long as the dye-containing fine particles 2 can be dispersed in the matrix resin 1.
  • the wavelength control optical member can be obtained by applying the dispersion liquid on the substrate and removing the solvent.
  • the method for applying the dispersion liquid to the substrate is not particularly limited, and for example, a spray coating method, a spin coating method, a slit coating method, a roll coating method, or the like can be used.
  • a transparent substrate can be used as the substrate to which the dispersion is applied, and for example, a glass plate such as soda-lime glass, low alkali borosilicate glass, non-alkali aluminoborosilicate glass, or the like can be used.
  • resin plates such as polycarbonate, polymethyl methacrylate, and polyethylene terephthalate can also be used.
  • the wavelength control optical member can be manufactured by the following method. First, after the above-mentioned pigment-containing fine particles are dispersed in a solvent, a matrix resin precursor is dissolved in the dispersion. In that case, a polymerization initiator is added as needed. Then, the wavelength control optical member can be obtained by applying the dispersion to a substrate and polymerizing and curing the precursor of the matrix resin.
  • the matrix resin is a thermosetting resin, it is cured by heating, and when it is an active energy ray curable resin, it is cured by an active energy ray (electromagnetic wave, ultraviolet ray, visible ray, infrared ray, electron beam, ⁇ ray, etc.). It can be carried out.
  • additives may be added to the above dispersion.
  • the additive include a plasticizer, a polymerization stabilizer, an optical brightener, a magnetic powder, an ultraviolet absorber, an antistatic agent, and a flame retardant.
  • the method for producing the dye-containing fine particles 2 is not particularly limited as long as the particles containing the dye 3, the singlet oxygen quencher 4, the antioxidant 5, and the ultraviolet absorber 6 in the particulate material 7 can be obtained.
  • the pigment-containing fine particles 2 can be produced by, for example, an interfacial polymerization method, a W / O-based in-liquid drying method, a stover method, and a spray drying method.
  • the dye-containing fine particles 2 can also be produced by, for example, an in situ polymerization method, a phase separation method from an aqueous solution, a phase separation method from an organic solvent, a melt dispersion cooling method, or an air suspension coating method.
  • the interfacial polymerization method is a method in which a hydrophobic monomer and a hydrophilic monomer are combined to form particles using a chemical reaction at the interface of emulsion droplets.
  • an oil phase premix in which oil-soluble monomers (precursor of particulate material) and active ingredients (pigment, singlet oxygen quencher, antioxidant and ultraviolet absorber) are uniformly mixed is prepared. Make it.
  • an aqueous phase containing a water-soluble monomer and an emulsifying dispersant for reacting with an oil-soluble monomer to form a film is prepared.
  • the oil phase premix is dispersed in the prepared aqueous phase.
  • the obtained emulsified dispersion (O / W emulsion or W / O emulsion) is heated and polymerized by heating at the interface between the oil phase and the water phase, whereby the dye-containing fine particles 2 can be obtained. .
  • the solution in which the wall membrane material is dissolved is removed by dispersing the wall membrane material solution in a water medium and heating or reducing the pressure while stirring. Thereby, the pigment
  • the dye-containing fine particles 2 can be produced by a Stover method.
  • the above-described alkoxysilane and catalyst are added to an alcohol solution in which a dye, a singlet oxygen quencher, an antioxidant and an ultraviolet absorber are mixed, and the mixture is stirred, heated and dried to produce the dye-containing fine particles 2. be able to.
  • the wavelength control optical member of this embodiment can be produced by a known film forming method. Furthermore, the pigment-containing fine particles 2 in the wavelength control optical member can also be produced by a known granulation method. Therefore, the wavelength control optical member of this embodiment can be manufactured at low cost.
  • the light emitting device of this embodiment includes a light emitting element, a wavelength conversion member that converts the wavelength of light emitted from the light emitting element, and the above-described wavelength control optical member.
  • FIG. 3 shows an LED module 11 which is an example of a light emitting device.
  • an LED element 13 as a light emitting element is mounted on a circuit board 12.
  • the LED element 13 is covered with a wavelength conversion member 14.
  • the LED element 13 is a blue LED element that has a main light emission peak in a range of, for example, 380 to 500 nm and emits blue light.
  • Examples of such LED elements 13 include gallium nitride-based LED elements.
  • the wavelength conversion member 14 contains, for example, at least one phosphor 15 of a blue phosphor, a green phosphor, a yellow phosphor and a red phosphor in a translucent material such as a silicone resin.
  • the blue phosphor is excited by the light emitted from the LED element 13 and emits blue light.
  • the green phosphor and the yellow phosphor are also excited by the light emitted from the LED element 13, and emit green light and yellow light, respectively.
  • the blue phosphor has an emission peak in the wavelength range of 470 nm to 500 nm
  • the green phosphor has an emission peak in the wavelength range of 500 nm to 540 nm
  • the yellow phosphor has an emission peak in the wavelength range of 545 nm to 595 nm.
  • the blue phosphor include BaMgAl 10 O 17 : Eu 2+ , CaMgSi 2 O 6 : Eu 2+ , Ba 3 MgSi 2 O 8 : Eu 2+ , Sr 10 (PO 4 ) 6 Cl 2 : Eu 2+, and the like.
  • Examples of the green phosphor include (Ba, Sr) 2 SiO 4 : Eu 2+ , Ca 8 Mg (SiO 4 ) 4 Cl 2 : Eu 2+ , Ca 8 Mg (SiO 4 ) 4 Cl 2 : Eu 2+ , Mn 2+. Can be mentioned.
  • Examples of the yellow phosphor include (Sr, Ba) 2 SiO 4 : Eu 2+ , (Y, Gd) 3 Al 5 O 12 : Ce 3+ , and ⁇ -Ca—SiAlON: Eu 2+ .
  • the red phosphor is excited by the LED element 13 and / or the emitted light of at least one of the green phosphor and the yellow phosphor, and emits red light.
  • the red phosphor has an emission peak in the wavelength region of 600 nm to 650 nm.
  • Examples of the red phosphor include Sr 2 Si 5 N 8 : Eu 2+ , CaAlSiN 3 : Eu 2+ , SrAlSi 4 N 7 : Eu 2+ , CaS: Eu 2+ , La 2 O 2 S: Eu 3+ , Y 3 Mg 2 ( AlO 4 ) (SiO 4 ) 2 : Ce 3+ .
  • the wavelength control optical member 10 that reduces the radiation intensity of at least a part of the light emitted from the LED element 13 or the phosphor 15 is disposed on the emission surface side of the LED module 11.
  • a wavelength control optical member 10 for example, the whiteness of the paper surface irradiated with the emitted light can be increased and the visibility can be improved.
  • the light-emitting device of this embodiment uses a wavelength control optical member that has high durability, particularly light resistance and heat resistance. Therefore, desired spectral characteristics can be obtained over a long period of time. Further, when the wavelength control optical member is used as a color filter of, for example, a liquid crystal display device or an organic EL display device, it becomes possible to contribute to high brightness and optical contrast over a long period of time.
  • the lighting fixture of this embodiment is provided with the above-mentioned light-emitting device.
  • FIG. 4 shows a desk stand 20 including the LED module 11 as an example of a lighting fixture.
  • the desk stand 20 has a lighting main body 22 mounted on a substantially disc-shaped base 21.
  • the illumination body 22 has an arm 23, and the lamp module 30 on the tip side of the arm 23 includes the LED module 11.
  • the illumination main body 22 is provided with a switch 22a, and the lighting state of the LED module 11 is changed by turning on / off the switch 22a.
  • the lamp 30 includes a substantially cylindrical base portion 31, a light source unit 32, an orientation control portion 33, a filter 34 made of the above-described wavelength control optical member, and a cover 35.
  • the light source unit 32 includes the LED module 11 as shown in FIG.
  • the orientation controller 33 is used to control the light from the light source unit 32 to a desired light distribution, and includes a lens in this embodiment.
  • the orientation control unit 33 may have a reflection plate or a light guide plate in addition to the lens depending on the configuration of the illumination device.
  • the filter 34 and the orientation control unit 33 may be integrated.
  • a coating portion 34 b that acts as a filter 34 may be formed by coating the surface of the transparent resin portion 34 a constituting the orientation control portion 33.
  • the lighting fixture of this embodiment uses a wavelength control optical member that has high durability, particularly light resistance and heat resistance of the pigment. Therefore, desired spectral characteristics can be obtained over a long period of time. That is, the lighting fixture of this embodiment can improve the visibility by increasing the whiteness of the paper surface irradiated with radiated light, for example.
  • TAP dye TAP18 manufactured by Yamada Chemical Co., Ltd .
  • 1 part by mass Singlet oxygen quencher CIR-965i manufactured by Nippon Carlit Co., Ltd .
  • 2 parts by mass UV absorber IRGANOX (registered trademark) -1010 manufactured by BASF Japan Ltd .
  • 2.4 parts by mass Antioxidant TINUVIN (registered trademark) PA144 manufactured by BASF Japan Ltd .
  • 2 parts by mass Metal alkoxide Tetraethoxysilane manufactured by Wako Pure Chemical Industries, Ltd .
  • 5 parts by mass Ion exchange water 1 mass by mass of tetraethoxysilane 1.8 parts by mass with respect to parts
  • Ammonia water (1N) 0.1 parts by mass with respect to 1 part by mass of tetraethoxysilane
  • the dye-containing fine particles prepared as described above were dispersed in toluene, and then an acrylic resin was added and stirred to prepare a dye-dispersed coating solution. And the test sample of this example was produced by apply
  • the acrylic resin Acrypet (registered trademark) VH manufactured by Mitsubishi Rayon Co., Ltd. was used.
  • Example 2 A test sample of this example was produced in the same manner as in Example 1 except that the amount of tetraethoxysilane added was 10 parts by mass. The average particle size of the dye-containing fine particles obtained in this example was 1.2 ⁇ m.
  • Example 3 (Preparation of pigment-containing fine particles) First, a mixed solution was prepared by dissolving a tetraazaporphyrin dye (TAP dye), a singlet oxygen quencher, an antioxidant, and an ultraviolet absorber in anhydrous dibutyl ether and stirring. Next, polysilazane was added to the mixed solution and stirred for 12 hours. Thereafter, the precipitate was filtered and dried to prepare the dye-containing fine particles of this example. The average particle size of the obtained pigment-containing fine particles was 1.1 ⁇ m.
  • TEP dye tetraazaporphyrin dye
  • TAP dye TAP18 manufactured by Yamada Chemical Co., Ltd .; 1 part by mass Singlet oxygen quencher: CIR-965i manufactured by Nippon Carlit Co., Ltd .; 2 parts by mass UV absorber: IRGANOX-1010 manufactured by BASF Japan Ltd .; 2.4 mass Part Antioxidant: TINUVIN PA144 manufactured by BASF Japan Ltd .; 2 parts by mass Polysilazane: AQUAMICA (registered trademark) NAX120 manufactured by AZ Electronic Materials; 5 parts by mass
  • the dye-containing fine particles prepared as described above were dispersed in toluene, and then an acrylic resin was added and stirred to prepare a dye-dispersed coating solution.
  • the mixing amount of the pigment-containing fine particles and the acrylic resin was the same as that in Example 1.
  • the test sample of this example was produced by apply
  • the acrylic resin used was Acrypet VH manufactured by Mitsubishi Rayon Co., Ltd.
  • Example 4 A test sample of this example was produced in the same manner as in Example 3 except that the amount of polysilazane added was 10 parts by mass. The average particle size of the dye-containing fine particles obtained in this example was 0.8 ⁇ m.
  • TAP dye tetraazaporphyrin dye
  • butanol 1: 4 mixed solvent and stirring. did.
  • an acrylic resin was added to the mixed solution and sufficiently stirred. And ion-exchange water was thrown into this mixed solution, and also after adding a non
  • the product name and addition amount of each raw material are as follows.
  • the stirrer used at the time of agitation is a lab solution (registered trademark) manufactured by PRIMIX Corporation.
  • TAP dye TAP18 manufactured by Yamada Chemical Co., Ltd .
  • 1 part by mass Singlet oxygen quencher CIR-965i manufactured by Nippon Carlit Co., Ltd .
  • 2 parts by mass UV absorber IRGANOX-1010 manufactured by BASF Japan Ltd .
  • 2 parts by mass Acrylic resin A-165 manufactured by DIC Corporation; 5 parts by mass Ion exchange water: 200 parts by mass with respect to 1 part by mass of acrylic resin
  • Surfactant Kishida 0.005 parts by mass per 1 part by mass of Bridge 35 manufactured by Chemical Co., Ltd.
  • the dye-containing fine particles prepared as described above were dispersed in toluene, and then an acrylic resin was added and stirred to prepare a dye-dispersed coating solution.
  • the mixing amount of the pigment-containing fine particles and the acrylic resin was the same as that in Example 1.
  • the test sample of this example was produced by apply
  • the acrylic resin used was Acrypet VH manufactured by Mitsubishi Rayon Co., Ltd.
  • Example 6 A test sample of this example was produced in the same manner as in Example 3 except that the amount of the acrylic resin used in the dye-containing fine particles was 10 parts by mass. The average particle size of the dye-containing fine particles obtained in this example was 1.0 ⁇ m.
  • the prepared dye-dispersed coating solution was applied onto a slide glass plate with a bar coater and dried to form a coating film, thereby preparing a test sample of this example.
  • the acrylic resin used was Acrypet VH manufactured by Mitsubishi Rayon Co., Ltd.
  • the residual ratio of the test samples of Examples 1 to 6 was 60% or more, but the residual ratio of the test sample of Comparative Example 1 was 55%. From this, it is understood that the durability is improved by making the pigment, the singlet oxygen quencher, the antioxidant and the ultraviolet absorber fine. Further, when Examples 1, 3 and 5 are compared with Examples 2, 4 and 6, respectively, it can be seen that the durability is improved by increasing the amount of the particulate material.
  • a singlet oxygen quencher, an antioxidant, and an ultraviolet absorber as deterioration suppressing additives are disposed in the vicinity of the pigment. Therefore, since the effect of the degradation inhibitor is easily exerted on the dye, it is possible to improve the durability of the dye 3, particularly the light resistance and the heat resistance, and to increase the stability of the dye.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Filters (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

La présente invention concerne un élément optique de commande de longueur d'onde pourvu d'une résine matricielle (1) et de particules fines (2) contenant un pigment qui sont dispersées dans la résine matricielle. Les particules fines contenant un pigment contiennent un pigment (3) qui a une longueur d'onde d'absorption maximale dans la plage allant de 400 nm à 650 nm, un quencher d'oxygène singulet (4), un antioxydant (5) et un absorbant d'ultraviolets (6). Un dispositif électroluminescent et un appareil d'éclairage selon la présente invention comprennent un élément électroluminescent, un élément de conversion de longueur d'onde qui convertit la longueur d'onde de lumière émise par l'élément électroluminescent et un élément optique de commande de longueur d'onde.
PCT/JP2015/002815 2014-06-06 2015-06-03 Élément optique de commande de longueur d'onde, dispositif électroluminescent et appareil d'éclairage Ceased WO2015186359A1 (fr)

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JP2019070063A (ja) * 2017-10-06 2019-05-09 三井化学株式会社 充填材料分散体
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JPWO2021192795A1 (fr) * 2020-03-23 2021-09-30
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EP4661634A1 (fr) * 2024-06-04 2025-12-10 LG Electronics Inc. Boîtier de dispositif électroluminescent, dispositif d'éclairage plan l'utilisant et dispositif d'affichage l'utilisant

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Cited By (13)

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JP2017138534A (ja) * 2016-02-05 2017-08-10 パナソニックＩｐマネジメント株式会社 波長制御光学部材、発光装置及び照明器具
US11505675B2 (en) * 2016-09-20 2022-11-22 Essilor International Polycarbonate resin compositions with consistent color and stable blue-cut performance
KR20180051313A (ko) * 2016-11-08 2018-05-16 엘지디스플레이 주식회사 유기 발광 표시 장치
KR102660751B1 (ko) * 2016-11-08 2024-04-24 엘지디스플레이 주식회사 유기 발광 표시 장치
JP7013705B2 (ja) 2017-08-01 2022-02-01 Dic株式会社 インク組成物及びその製造方法、光変換層並びにカラーフィルタ
JP2019026778A (ja) * 2017-08-01 2019-02-21 Dic株式会社 インク組成物及びその製造方法、光変換層並びにカラーフィルタ
JP2019070063A (ja) * 2017-10-06 2019-05-09 三井化学株式会社 充填材料分散体
JP2019164214A (ja) * 2018-03-19 2019-09-26 三井化学株式会社 塗料材料
JP2019164898A (ja) * 2018-03-19 2019-09-26 三井化学株式会社 導光板
WO2021192795A1 (fr) * 2020-03-23 2021-09-30 東レ株式会社 Composition de conversion de couleur, film de conversion de couleur, unité de source de lumière, dispositif d'affichage, éclairage la comprenant et composé
JPWO2021192795A1 (fr) * 2020-03-23 2021-09-30
JP7632277B2 (ja) 2020-03-23 2025-02-19 東レ株式会社 色変換組成物、色変換フィルム、それを含む光源ユニット、ディスプレイおよび照明ならびに化合物
EP4661634A1 (fr) * 2024-06-04 2025-12-10 LG Electronics Inc. Boîtier de dispositif électroluminescent, dispositif d'éclairage plan l'utilisant et dispositif d'affichage l'utilisant

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