WO2009041689A1 - Litht emitting device - Google Patents

Litht emitting device Download PDF

Info

Publication number
WO2009041689A1
WO2009041689A1 PCT/JP2008/067669 JP2008067669W WO2009041689A1 WO 2009041689 A1 WO2009041689 A1 WO 2009041689A1 JP 2008067669 W JP2008067669 W JP 2008067669W WO 2009041689 A1 WO2009041689 A1 WO 2009041689A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective material
emitting device
light emitting
luminescent layer
atomic weight
Prior art date
Application number
PCT/JP2008/067669
Other languages
French (fr)
Japanese (ja)
Inventor
Masato Okada
Shigehiro Ueno
Tomonori Akai
Masaya Shimogawara
Seiji Take
Original Assignee
Dai Nippon Printing Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2008249144A external-priority patent/JP5267009B2/en
Application filed by Dai Nippon Printing Co., Ltd. filed Critical Dai Nippon Printing Co., Ltd.
Priority to CN2008801104528A priority Critical patent/CN101810056B/en
Priority to US12/680,046 priority patent/US9155159B2/en
Priority to GB1005118A priority patent/GB2467059A/en
Publication of WO2009041689A1 publication Critical patent/WO2009041689A1/en

Links

Classifications

    • 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
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
    • 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, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/56—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing sulfur
    • C09K11/562—Chalcogenides
    • C09K11/565—Chalcogenides with zinc 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, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/62—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing gallium, indium or thallium
    • C09K11/621—Chalcogenides
    • C09K11/623—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, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/88—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
    • C09K11/881—Chalcogenides
    • C09K11/883—Chalcogenides with zinc or cadmium
    • 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
    • H05B33/20—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
    • 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
    • H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
    • H05B33/24—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers of metallic reflective layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Luminescent Compositions (AREA)

Abstract

This invention provides a QD protective material having a high compatibility with a binder component in a luminescent layer, and a light emitting device with a prolonged drive life using the protective material. The light emitting device comprises a substrate, two or more opposed electrodes provided on the substrate, and a luminescent layer provided between two of the electrodes. A metal layer is further provided on the electrode. The light emitting device is characterized in that the luminescent layer contains, as a part of its chemical structure, a compound containing a part A having a total atomic weight MA of 100 or more and a quantum dot protected by the protective material, the protective material contains, as a part of its chemical structure, a part B which contains a linking group connected to a quantum dot surface, has a total atomic weight MB of 100 or more, satisfies a relationship between MB and MA of |MA - MB|/MB ≤ 2, and satisfies the requirement that the total atomic weight MB is larger than one-third of the molecular weight of the protective material, and a solubility parameter SA of the part A and a solubility parameter SB of the part B satisfy a relationship of |SA - SB| ≤ 2.
PCT/JP2008/067669 2007-09-28 2008-09-29 Litht emitting device WO2009041689A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2008801104528A CN101810056B (en) 2007-09-28 2008-09-29 Light emitting device
US12/680,046 US9155159B2 (en) 2007-09-28 2008-09-29 Light emitting device having quantum cut dots with a protecting material and prolonged drive lifetime and good color purity
GB1005118A GB2467059A (en) 2007-09-28 2008-09-29 Light emitting device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-256858 2007-09-28
JP2007256858 2007-09-28
JP2008-249144 2008-09-26
JP2008249144A JP5267009B2 (en) 2007-09-28 2008-09-26 Light emitting device

Publications (1)

Publication Number Publication Date
WO2009041689A1 true WO2009041689A1 (en) 2009-04-02

Family

ID=40511567

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/067669 WO2009041689A1 (en) 2007-09-28 2008-09-29 Litht emitting device

Country Status (1)

Country Link
WO (1) WO2009041689A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3309236A1 (en) * 2010-05-27 2018-04-18 Merck Patent GmbH Compositions comprising quantum dots

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003138033A (en) * 2001-11-01 2003-05-14 Mitsubishi Chemicals Corp Molded thin film containing semiconductor crystal particle, and its use
JP2005502176A (en) * 2001-09-04 2005-01-20 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Electroluminescent device with quantum dots
JP2007513478A (en) * 2003-12-02 2007-05-24 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Electroluminescent device
JP2008214363A (en) * 2007-02-28 2008-09-18 Canon Inc Nanoparticle luminescent material, electroluminescent element using the same, ink composition and display apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005502176A (en) * 2001-09-04 2005-01-20 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Electroluminescent device with quantum dots
JP2003138033A (en) * 2001-11-01 2003-05-14 Mitsubishi Chemicals Corp Molded thin film containing semiconductor crystal particle, and its use
JP2007513478A (en) * 2003-12-02 2007-05-24 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Electroluminescent device
JP2008214363A (en) * 2007-02-28 2008-09-18 Canon Inc Nanoparticle luminescent material, electroluminescent element using the same, ink composition and display apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3309236A1 (en) * 2010-05-27 2018-04-18 Merck Patent GmbH Compositions comprising quantum dots

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