WO2008029633A1 - Substrat de conversion de couleur et procédé de fabrication associé - Google Patents

Substrat de conversion de couleur et procédé de fabrication associé Download PDF

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Publication number
WO2008029633A1
WO2008029633A1 PCT/JP2007/066405 JP2007066405W WO2008029633A1 WO 2008029633 A1 WO2008029633 A1 WO 2008029633A1 JP 2007066405 W JP2007066405 W JP 2007066405W WO 2008029633 A1 WO2008029633 A1 WO 2008029633A1
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WO
WIPO (PCT)
Prior art keywords
color conversion
substrate
group
conversion film
film
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
Application number
PCT/JP2007/066405
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English (en)
Japanese (ja)
Inventor
Satoshi Hachiya
Mitsuru Eida
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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
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Filing date
Publication date
Application filed by Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Publication of WO2008029633A1 publication Critical patent/WO2008029633A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent materials, e.g. electroluminescent or chemiluminescent
    • C09K11/08—Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials
    • C09K11/88—Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
    • C09K11/881—Chalcogenides
    • C09K11/883—Chalcogenides with zinc or cadmium
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent materials, e.g. electroluminescent or chemiluminescent
    • C09K11/08—Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials
    • C09K11/70—Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials containing phosphorus
    • 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 [2D] radiating surfaces
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]

Definitions

  • the present invention relates to a color conversion substrate and a manufacturing method thereof.
  • the present invention relates to a color conversion substrate having sufficient color conversion performance even with a thin film.
  • the color conversion film has to be thicker than 10 m.
  • Patent Document 1 is characterized by comprising semiconductor nanoparticles, a solvent, and a polymerizable monomer.
  • a photopolymerizable resin composition is disclosed.
  • Patent Document 2 discloses a coating composition comprising a polymerizable component, semiconductor ultrafine particles, and a solvent.
  • the composition is formed between the time when the coating composition is applied on the substrate and the time when the polymerizable component is polymerized. Since it is easy to flow, it was difficult to accurately form a layer containing a photoluminescent inorganic nanocrystal on a large-area substrate. Further, when a coating film was formed on a small area such as a pixel of a display, the adhesion strength with the substrate was likely to be reduced due to shrinkage of the coating film when the polymerizable component was polymerized.
  • Patent Document 3 discloses an inkjet ink containing semiconductor nanoparticles using an aqueous medium.
  • Patent Document 1 Japanese Patent Laid-Open No. 10-186426
  • Patent Document 2 Japanese Patent Laid-Open No. 2002-114928
  • Patent Document 3 Japanese Patent Laid-Open No. 2000-119575
  • An object of the present invention is to provide a color conversion substrate using a color conversion film having sufficient color conversion performance even with a thin film.
  • Another object of the present invention is to provide a color conversion substrate manufacturing method with high productivity.
  • the following color conversion substrate and the like are provided.
  • a color conversion substrate comprising a substrate, and a color conversion part in which a color conversion film containing a photoluminescent inorganic nanocrystal and a transparent protective layer are laminated in this order on the substrate.
  • the color conversion film further includes a surface treatment agent and / or a transparent resin of a photoluminescent inorganic nanocrystal, and at least one of the surface treatment agent and the transparent resin 2.
  • the surface treatment agent is a compound having a group selected from a phosphine group, a phosphine oxide group, an amino group, a thiol group, a phosphate ester group, a phosphonate ester group, a carboxyl group, and an olefin group.
  • Color conversion board is a compound having a group selected from a phosphine group, a phosphine oxide group, an amino group, a thiol group, a phosphate ester group, a phosphonate ester group, a carboxyl group, and an olefin group.
  • the transparent protective layer comprises a metal oxide and / or a metal nitride oxide.
  • a composition containing a photoluminescent inorganic nanocrystal and a solvent is applied onto a substrate, the solvent is dried to form a color conversion film, and a transparent protective layer is formed on the color conversion film.
  • FIG. 1 is a diagram showing a light emitting device produced in Example 3.
  • the color conversion substrate of the present invention includes a substrate and a photoluminescent inorganic nanocrystalr on the substrate. And a color conversion part in which a transparent protective layer is laminated in this order.
  • Examples of the photoluminescent inorganic nanocrystal include the following substances.
  • IIIV compound semiconductor nanocrystals such as InP, chalcopyrite semiconductor nanotalities such as CuInS and CuInSe
  • the semiconductor nanocrystal is a semiconductor crystal made into ultrafine particles of nanometer order, and preferably has a particle size of 20 nm or less, more preferably lOnm or less.
  • Dopes doped with transition metal ions that absorb visible light such as + and Tb 3+ .
  • nanocrystals of (i) and (ii) above in order to prevent the surface of the nanocrystals from being oxidized and extraction of S, Se, etc., metal oxides such as silica, long chain alkyl groups, phosphoric acid, etc.
  • the surface may be modified with organic substances such as
  • nanoparticles in which the surface of the nanoparticles is covered with another semiconductor called a shell are more preferable in terms of stability and fluorescence.
  • the surface of the shell may be further coated with a metal oxide such as silica or titania.
  • the photoluminescent inorganic nanocrystals described above may be used alone or in combination of two or more.
  • the color conversion film of the present invention preferably contains a surface treatment agent and / or a transparent resin of a photoluminescent inorganic nanocrystal in addition to the photoluminescent inorganic nanocrystal, At least one has a glass transition temperature, softening temperature or melting point of 120 ° C or higher. Glass transition temperature, softening temperature or melting point of 120 ° C or higher By including a certain surface treatment agent and / or transparent resin, when the color conversion film is used for a display or the like, it is possible to prevent the color conversion film from flowing due to heating during production or temperature rise during use.
  • the glass transition temperature, softening temperature or melting point of the surface treatment agent and / or the transparent resin is preferably 160 ° C. or higher.
  • the glass transition temperature and melting point are measured by DSC measurement, and the softening temperature is measured by a ring and ball softening point test method.
  • the surface treatment agent for a photoluminescent inorganic nanocrystal can further stabilize the dispersion of the photoluminescent inorganic nanocrystal in the composition.
  • the surface treatment agent for photoluminescent inorganic nanocrystals can use a known surface treatment agent as the surface treatment agent.
  • the photoluminescent inorganic nanocrystals may aggregate during storage of the composition. ! /, Select the surface treatment agent.
  • the surface treatment agent is preferably a compound having a group selected from a phosphine group, a phosphine oxide group, an amino group, a thiol group, a phosphate ester group, a phosphonate ester group, a carboxyl group, and an olefin group.
  • Specific examples of the compound containing an amino group include an amino terminal PEG, octylamine, decylamine, and glycine tert butyl ester.
  • the compound containing a thiol group examples include octanethiol, octylthiodaricolate, 2-ethylhexyl 3-mercaptopropionate, thiol-terminated PEG, and 3-mer.
  • the compound containing a phosphoric acid ester group examples include dibutyl phosphate, di-n-decino lefophosphate, di (polyethylene glycolanol 4-nonino lefenore) phosphate, and tributyl phosphate.
  • Specific examples of the compound containing a carboxyl group include decanoic acid, 2-ethylhexanoic acid, 4-monohexylbenzoic acid, and 4-bulubenzoic acid.
  • the compound containing a phosphine group examples include tributylphosphine and trioctylphosphine.
  • An example of a compound containing a specific phosphine oxide group is tributylphosphine oxide. Examples thereof include side and trioctyl phosphine oxide.
  • the compound containing an olephine group examples include dodecene, methylundecenoate, buêtcenoate, and 1,2-epoxy-9-decene.
  • the molecular weight of these compounds is, for example, preferably 10,000 or less, more preferably 5,000 or less.
  • the transparent resin is not particularly limited as long as it can be dispersed in the same solvent as the photoluminescent inorganic nanocrystal, but is preferably soluble in a ketone solvent.
  • polymethacrylic acid octahydro-4,7-methanoindul ester a copolymer of methyl methacrylate and N-isopropylmaleimide, polycyclohexylene, and poly carbonate.
  • the amount of photoluminescent inorganic nanocrystal is preferably 20 to 90 weight 0/0, more preferably 20 to 60 weight 0/0.
  • the compounding amount of the surface treatment agent for the photoluminescent inorganic nanocrystal is preferably 50% by weight or less, more preferably 2 to 45% by weight.
  • the blending amount of the transparent resin is preferably 30% by weight or less, more preferably 20% by weight or less.
  • the color conversion film cannot sufficiently absorb the light from the light source, so that the film thickness may need to be increased.
  • the photoluminescent inorganic nanocrystal exceeds 90% by weight, the film strength becomes too low and the color conversion film may be damaged before the transparent protective layer is provided.
  • the color conversion film may contain additives such as transparent fine particles such as titaure and silica, and an antioxidant.
  • the thickness of the color conversion film is not limited, but is usually 1 to 100 m.
  • the color conversion film of the present invention is
  • the film thickness can be reduced to 10 m or less, specifically;
  • the transparent protective layer is not particularly limited as long as it is transparent, but it is preferable that the compatibility of the photoluminescent inorganic nanocrystal is low so as not to destroy the lower photoluminescent inorganic nanocrystal layer.
  • Transparent resin soluble in ester solvents or alcohol solvents when using organic materials Is preferred.
  • a thermosetting and / or photocurable resin is preferable.
  • the transparent resin include (meth) acrylic resin, polycarbonate resin, silicone resin, polysulfone resin, and epoxy resin.
  • metal oxides such as silicon oxide and titanium oxide nitride nitride or metal nitride oxides are preferable.
  • the thickness of the transparent protective film is not limited, but is preferably 0.1 to 5111.
  • a glass plate, a polymer plate or the like can be used as the substrate.
  • a composition containing a photoluminescent inorganic nanocrystal and a solvent is applied onto a substrate, and the solvent is dried to form a color conversion film. It can be produced by forming a transparent protective layer thereon.
  • the composition may include a surface treatment agent for the photoluminescent inorganic nanocrystal, a transparent resin having a glass transition temperature, a softening temperature, or a melting point of 120 ° C. or higher.
  • Examples of the solvent include xylene, diglyme, and cyclohexanone. Since it is preferable that no solvent remains when the color conversion film is formed, a solvent having a boiling point of 200 ° C. or lower is preferable.
  • the composition is applied onto the substrate, but it is preferable to apply the composition onto the substrate by a printing method, because a color conversion film can be formed only on a necessary portion, and the material utilization efficiency is improved. It is preferable to use the inkjet method or nozzle printing method as the printing method.
  • a partition wall is provided on the substrate, and a composition (ink) is made to flow into an area delimited by the partition wall to form a color conversion film. Easy and preferred.
  • the color conversion film of the present invention can increase the concentration of the photoluminescent inorganic nanocrystal, and even a thin film can exhibit sufficient color conversion performance. Further, since the color conversion substrate of the present invention can be produced by the inkjet method, the productivity is increased.
  • the transparent protective film can be formed by coating or dipping in the case of an organic material, and can be formed by sputtering, chemical vapor deposition (CVD), or vapor deposition in the case of an inorganic material.
  • a light emitting device can be manufactured by combining the light emitting element and the color conversion substrate.
  • the light emitting element one that emits visible light can be used, for example, an organic EL element, Inorganic EL elements, semiconductor light emitting diodes, and fluorescent display tubes can be used. Of these, organic EL elements and inorganic EL elements are preferred. In particular, organic EL elements are preferred because they provide light emitting elements with low voltage and high brightness.
  • a solution of the phosphine compound was injected all at once from the septum cap portion of the four-necked flask. After 5 seconds, 40 ml of octadecene was added, and the reaction temperature was rapidly lowered to 180 ° C. 1 Stirring was continued at 80 ° C for 2 hours.
  • the temperature was lowered to 50 ° C., and the pressure was reduced by a vacuum pump for 1 hour.
  • the reaction solution was taken out by returning to atmospheric pressure with nitrogen gas and lowering the temperature to room temperature, and the precipitate was removed by centrifugation (3000 rpm, 10 minutes). The supernatant was once stored in the glove box.
  • the inside of the flask was evacuated to a vacuum and stirred at 80 ° C for 30 minutes.
  • the solution was returned to atmospheric pressure with nitrogen gas, and a solution of InP nanoparticles stored in the glove box was added. Stirring was continued under reduced pressure at 80 ° C for 1.5 hours.
  • the pressure was returned to atmospheric pressure with nitrogen gas, and the temperature was increased to 140 ° C. 1. Stirring was continued for 5 hours. The temperature was lowered to room temperature, the reaction solution was taken out, and coarse particles and unreacted raw materials were removed by centrifugation (3000 rpm, 15 minutes).
  • the obtained nanoparticles had a fluorescence peak wavelength of 634 nm and a fluorescence quantum yield of 17%. These were measured using a quantum yield measuring device (C9920-02 type) manufactured by Hamamatsu Photonicus. Synthesis example 2
  • the inside of the flask was evacuated to a vacuum and stirred at 120 ° C for 2 hours.
  • the pressure was returned to atmospheric pressure with nitrogen gas, and the temperature was increased to 300 ° C.
  • the selenium solution was injected all at once from the septum cap portion of the four-necked flask. Stirring was continued for 1.5 hours at 290 ° C.
  • reaction temperature was raised to 230 ° C and stirring was continued for 1.5 hours.
  • the obtained nanoparticles had a fluorescence peak wavelength of 528 nm and a fluorescence quantum yield of 13%.
  • the octadecene solution of InP / ZnS nanoparticles obtained in Synthesis Example 1 was poured into ethanol to reprecipitate the nanoparticles.
  • the solvent was removed by decantation, followed by vacuum drying to obtain nanoparticles (photoluminescent inorganic nanocrystals) (75 mg).
  • a black matrix (V259 BK (manufactured by Nippon Steel Chemical Co., Ltd.)) having a width of 20 mm 111 and a thickness of 1 ⁇ 5 mm was produced at intervals of 90 am by a photolithography method. Furthermore, a glass substrate having a partition wall (VPA100 / P54-2 (manufactured by Nippon Steel Chemical Co., Ltd.)) having a width of 15 mm and a height of 10 m on a black matrix was prepared.
  • V259 BK manufactured by Nippon Steel Chemical Co., Ltd.
  • the composition was applied once to the area of the glass substrate separated by the partition walls, and the solvent was evaporated at 120 ° C.
  • the film thickness at this stage was 2. ⁇ .
  • VPA100 / P54- 2 Recoating the VPA100 / P54- 2 as a transparent protective layer (produced by Nippon Steel Chemical Co., Ltd.), after evaporation of the solvent at 120 degrees to cure the 365nm UV 300 mj / cm 2 irradiated to (approximately thickness after curing 1 ⁇ m), a color conversion substrate was prepared.
  • the blue light-emitting organic EL device When the blue light-emitting organic EL device was laminated and the organic EL device was allowed to emit light, the blue light of the organic EL device was converted to green with a peak wavelength of 528 nm.
  • the light emitting device 1 shown in FIG. 1 was produced as follows.
  • a black matrix 12 was formed on a glass substrate 11.
  • red, green, and blue color filters 13, 14, and 15 were formed in this order in thicknesses of about 1 ⁇ 5 111 in the area delimited by black bear tritas 12, respectively.
  • partition walls 16 were formed on the black matrix 12 in the same manner as in Example 1.
  • Example 1 The composition prepared in Example 1 was applied once onto the red color filter 13 in the area separated by the partition walls. The solvent was dried at 120 ° C to form a red color conversion film 17 having a film thickness of about 2.1 m.
  • Example 2 the composition used in Example 2 was applied once onto the green color filter 14 in the area separated by the partition walls.
  • the solvent was dried at 120 ° C. to form a green color conversion film 18 having a film thickness of about 2. ⁇ .
  • a color conversion unit 30 is formed from the black matrix 12, the red, green, and blue color filters 13, 14, and 15, the partition wall 16, the red color conversion film 17, the green color conversion film 18, and the transparent protective layer 19.
  • the color conversion substrate 10 was completed by forming the substrate 11 and the color conversion unit 30.
  • an electrode (not shown) processed in a matrix in accordance with the pitch of the partition walls 16 of the color conversion substrate 10 and a blue light emitting organic EL element 23 were formed, and an organic EL panel 20 was manufactured.
  • the light emitting device 1 was manufactured by stacking the fluorescence conversion substrate and the organic EL panel. When an image was displayed on this light-emitting device 1, a full-color image could be displayed.
  • the color display device using the color conversion substrate of the present invention is a consumer or industrial display, for example, a display for a portable display terminal, an in-vehicle display such as a car navigation system or an instrument panel, a personal computer for office automation (OA), Used for display devices for TV (TV receiver) or FA (factory automation). In particular, it is used for thin, flat monocolor, multicolor or full color displays.
  • OA personal computer for office automation
  • TV receiver TV receiver
  • FA factory automation

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

La présente invention concerne un substrat de conversion de couleur (10) qui comprend une base (11) et une partie de conversion de couleur (30) agencée sur la base (11). La partie de conversion de couleur (30) comprend des films de conversion de couleur (17, 18) qui contiennent un nanocristal inorganique à photoluminescence et une couche protectrice transparente (19), qui sont agencés séquentiellement sur la base (11) dans cet ordre.
PCT/JP2007/066405 2006-09-07 2007-08-24 Substrat de conversion de couleur et procédé de fabrication associé Ceased WO2008029633A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-242354 2006-09-07
JP2006242354 2006-09-07

Publications (1)

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WO2008029633A1 true WO2008029633A1 (fr) 2008-03-13

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010010730A1 (fr) * 2008-07-24 2010-01-28 富士電機ホールディングス株式会社 Procédé de fabrication d'un substrat de conversion de couleur
JP2010204352A (ja) * 2009-03-03 2010-09-16 Fuji Electric Holdings Co Ltd 色変換フィルタ基板の製造方法
JP2010267552A (ja) * 2009-05-18 2010-11-25 Fuji Electric Holdings Co Ltd 色変換フィルター基板
US8128249B2 (en) 2007-08-28 2012-03-06 Qd Vision, Inc. Apparatus for selectively backlighting a material
US8405063B2 (en) 2007-07-23 2013-03-26 Qd Vision, Inc. Quantum dot light enhancement substrate and lighting device including same
US9140844B2 (en) 2008-05-06 2015-09-22 Qd Vision, Inc. Optical components, systems including an optical component, and devices
US9167659B2 (en) 2008-05-06 2015-10-20 Qd Vision, Inc. Solid state lighting devices including quantum confined semiconductor nanoparticles, an optical component for a solid state lighting device, and methods
US9207385B2 (en) 2008-05-06 2015-12-08 Qd Vision, Inc. Lighting systems and devices including same
US9929325B2 (en) 2012-06-05 2018-03-27 Samsung Electronics Co., Ltd. Lighting device including quantum dots
US9951438B2 (en) 2006-03-07 2018-04-24 Samsung Electronics Co., Ltd. Compositions, optical component, system including an optical component, devices, and other products
US11472979B2 (en) 2007-06-25 2022-10-18 Samsung Electronics Co., Ltd. Compositions and methods including depositing nanomaterial

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Publication number Priority date Publication date Assignee Title
US9951438B2 (en) 2006-03-07 2018-04-24 Samsung Electronics Co., Ltd. Compositions, optical component, system including an optical component, devices, and other products
US11866598B2 (en) 2007-06-25 2024-01-09 Samsung Electronics Co., Ltd. Compositions and methods including depositing nanomaterial
US11472979B2 (en) 2007-06-25 2022-10-18 Samsung Electronics Co., Ltd. Compositions and methods including depositing nanomaterial
US9680054B2 (en) 2007-07-23 2017-06-13 Samsung Electronics Co., Ltd. Quantum dot light enhancement substrate and lighting device including same
US9276168B2 (en) 2007-07-23 2016-03-01 Qd Vision, Inc. Quantum dot light enhancement substrate and lighting device including same
US8759850B2 (en) 2007-07-23 2014-06-24 Qd Vision, Inc. Quantum dot light enhancement substrate
US10096744B2 (en) 2007-07-23 2018-10-09 Samsung Electronics Co., Ltd. Quantum dot light enhancement substrate and lighting device including same
US8405063B2 (en) 2007-07-23 2013-03-26 Qd Vision, Inc. Quantum dot light enhancement substrate and lighting device including same
US8128249B2 (en) 2007-08-28 2012-03-06 Qd Vision, Inc. Apparatus for selectively backlighting a material
US9946004B2 (en) 2008-05-06 2018-04-17 Samsung Electronics Co., Ltd. Lighting systems and devices including same
US9207385B2 (en) 2008-05-06 2015-12-08 Qd Vision, Inc. Lighting systems and devices including same
US9167659B2 (en) 2008-05-06 2015-10-20 Qd Vision, Inc. Solid state lighting devices including quantum confined semiconductor nanoparticles, an optical component for a solid state lighting device, and methods
US9140844B2 (en) 2008-05-06 2015-09-22 Qd Vision, Inc. Optical components, systems including an optical component, and devices
US10145539B2 (en) 2008-05-06 2018-12-04 Samsung Electronics Co., Ltd. Solid state lighting devices including quantum confined semiconductor nanoparticles, an optical component for a solid state lighting device, and methods
US10359555B2 (en) 2008-05-06 2019-07-23 Samsung Electronics Co., Ltd. Lighting systems and devices including same
US10627561B2 (en) 2008-05-06 2020-04-21 Samsung Electronics Co., Ltd. Lighting systems and devices including same
WO2010010730A1 (fr) * 2008-07-24 2010-01-28 富士電機ホールディングス株式会社 Procédé de fabrication d'un substrat de conversion de couleur
JP2010204352A (ja) * 2009-03-03 2010-09-16 Fuji Electric Holdings Co Ltd 色変換フィルタ基板の製造方法
JP2010267552A (ja) * 2009-05-18 2010-11-25 Fuji Electric Holdings Co Ltd 色変換フィルター基板
US9929325B2 (en) 2012-06-05 2018-03-27 Samsung Electronics Co., Ltd. Lighting device including quantum dots

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