New! View global litigation for patent families

US20090066234A1 - Light emitting devices and compositions - Google Patents

Light emitting devices and compositions Download PDF

Info

Publication number
US20090066234A1
US20090066234A1 US12167127 US16712708A US20090066234A1 US 20090066234 A1 US20090066234 A1 US 20090066234A1 US 12167127 US12167127 US 12167127 US 16712708 A US16712708 A US 16712708A US 20090066234 A1 US20090066234 A1 US 20090066234A1
Authority
US
Grant status
Application
Patent type
Prior art keywords
light
emitting
layer
ir
compound
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.)
Abandoned
Application number
US12167127
Other languages
English (en)
Inventor
Hyun Sik Chae
Yutaka Ohmori
Jesse Froehlich
Sheng Li
Amane Mochizuki
Ghassan Jabbour
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.)
Nitto Denko Corp
Original Assignee
Nitto Denko Corp
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

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/06Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00Nanooptics, e.g. quantum optics or photonic crystals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F15/00Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic System
    • C07F15/0006Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic System compounds of the platinum group
    • C07F15/0033Iridium compounds
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
    • H01L51/005Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene
    • H01L51/0062Macromolecular systems with low molecular weight, e.g. cyanine dyes, coumarine dyes, tetrathiafulvalene aromatic compounds comprising a hetero atom, e.g.: N,P,S
    • H01L51/0071Polycyclic condensed heteroaromatic hydrocarbons
    • H01L51/0072Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ringsystem, e.g. phenanthroline, carbazole
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
    • H01L51/0077Coordination compounds, e.g. porphyrin
    • H01L51/0084Transition metal complexes, e.g. Ru(II)polypyridine complexes
    • H01L51/0085Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising Iridium
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
    • H01L51/0094Silicon-containing organic semiconductors
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B33/00Electroluminescent light sources
    • H05B33/12Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14Light 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07BGENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B2200/00Indexing scheme relating to specific properties of organic compounds
    • C07B2200/11Compounds covalently bound to a solid support
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2211/00Chemical nature of organic luminescent or tenebrescent compounds
    • C09K2211/18Metal complexes
    • C09K2211/185Metal complexes of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/50Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED];
    • H01L51/5012Electroluminescent [EL] layer
    • H01L51/5016Triplet emission
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BINDEXING SCHEME RELATING TO CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. INCLUDING HOUSING AND APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies
    • Y02B20/16Gas discharge lamps, e.g. fluorescent lamps, high intensity discharge lamps [HID] or molecular radiators
    • Y02B20/18Low pressure and fluorescent lamps
    • Y02B20/181Fluorescent powders
US12167127 2007-07-05 2008-07-02 Light emitting devices and compositions Abandoned US20090066234A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US94816407 true 2007-07-05 2007-07-05
US3337008 true 2008-03-03 2008-03-03
US12167127 US20090066234A1 (en) 2007-07-05 2008-07-02 Light emitting devices and compositions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12167127 US20090066234A1 (en) 2007-07-05 2008-07-02 Light emitting devices and compositions
US13460661 US8609258B2 (en) 2007-07-05 2012-04-30 Light emitting devices and compositions

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13460661 Continuation US8609258B2 (en) 2007-07-05 2012-04-30 Light emitting devices and compositions

Publications (1)

Publication Number Publication Date
US20090066234A1 true true US20090066234A1 (en) 2009-03-12

Family

ID=39776338

Family Applications (2)

Application Number Title Priority Date Filing Date
US12167127 Abandoned US20090066234A1 (en) 2007-07-05 2008-07-02 Light emitting devices and compositions
US13460661 Active US8609258B2 (en) 2007-07-05 2012-04-30 Light emitting devices and compositions

Family Applications After (1)

Application Number Title Priority Date Filing Date
US13460661 Active US8609258B2 (en) 2007-07-05 2012-04-30 Light emitting devices and compositions

Country Status (3)

Country Link
US (2) US20090066234A1 (zh)
JP (1) JP5385903B2 (zh)
WO (1) WO2009006550A1 (zh)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070262302A1 (en) * 2006-05-15 2007-11-15 Amane Mochizuki Light emitting devices and compositions
US20090179552A1 (en) * 2007-11-15 2009-07-16 Jesse Froehlich Light emitting devices and compositions
US20110031875A1 (en) * 2009-08-06 2011-02-10 National Tsing Hua University High-molecule-based organic light-emitting diode and fabrication method thereof
US20110193075A1 (en) * 2008-10-13 2011-08-11 Amane Mochizuki Printable light-emitting compositions
US8609258B2 (en) 2007-07-05 2013-12-17 Nitto Denko Corporation Light emitting devices and compositions
CN103694277A (zh) * 2013-12-12 2014-04-02 江西冠能光电材料有限公司 一种红色磷光有机发光二极管
US20140175391A1 (en) * 2012-12-21 2014-06-26 Samsung Display Co., Ltd. Organic light emitting diode display and manufacturing method thereof

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012094616A (ja) * 2010-10-26 2012-05-17 Konica Minolta Holdings Inc 有機エレクトロルミネッセンス素子
WO2012063691A1 (ja) * 2010-11-11 2012-05-18 コニカミノルタホールディングス株式会社 有機エレクトロルミネッセンス素子、その製造方法、照明装置、表示装置及びリン光発光性粒子
JP5708656B2 (ja) * 2010-11-11 2015-04-30 コニカミノルタ株式会社 有機エレクトロルミネッセンス素子、照明装置及び表示装置
WO2013009708A1 (en) * 2011-07-14 2013-01-17 Universal Display Corporation Inorganic hosts in oleds
US8969856B2 (en) 2012-08-29 2015-03-03 General Electric Company OLED devices with internal outcoupling
KR101617877B1 (ko) * 2013-01-16 2016-05-03 서울대학교산학협력단 유기발광다이오드
WO2014188376A1 (en) * 2013-05-23 2014-11-27 Eni S.P.A. Stabilized photoactive composition and use thereof
USD704237S1 (en) 2013-08-23 2014-05-06 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703248S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703712S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703247S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
JP6278003B2 (ja) * 2015-06-19 2018-02-14 コニカミノルタ株式会社 有機エレクトロルミネッセンス素子

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635249A (en) * 1993-03-08 1997-06-03 Dow Corning Corporation Luminescent ceramic coatings
US6018002A (en) * 1998-02-06 2000-01-25 Dow Corning Corporation Photoluminescent material from hydrogen silsesquioxane resin
US6406804B1 (en) * 1998-04-09 2002-06-18 Idemitsu Kosan Co., Ltd. Organic electroluminescent device
US6517958B1 (en) * 2000-07-14 2003-02-11 Canon Kabushiki Kaisha Organic-inorganic hybrid light emitting devices (HLED)
US6528188B1 (en) * 1999-09-16 2003-03-04 Denso Corporation Organic EL element for multi-color emission
US20030120099A1 (en) * 2000-10-27 2003-06-26 Laine Richard M. Well-defined nanosized building blocks for organic/inorganic nanocomposites
US20030162299A1 (en) * 2002-02-08 2003-08-28 Canon Kabushiki Kaisha Light emissive iridium (III) complexes
US6657224B2 (en) * 2001-06-28 2003-12-02 Emagin Corporation Organic light emitting diode devices using thermostable hole-injection and hole-transport compounds
US20050123760A1 (en) * 2003-10-15 2005-06-09 Cammack J. K. Light-emitting nanoparticle compositions
US20060186791A1 (en) * 2003-05-29 2006-08-24 Osamu Yoshitake Organic electroluminescent element
US7147938B2 (en) * 2004-06-30 2006-12-12 Eastman Kodak Company Organic element for electroluminescent devices
US20070184301A1 (en) * 2004-02-26 2007-08-09 Konica Minolta Holdings, Inc. Material for organic electroluminescence element, organic electroluminescence element, display device and illumination device

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7001536B2 (en) 1999-03-23 2006-02-21 The Trustees Of Princeton University Organometallic complexes as phosphorescent emitters in organic LEDs
US6830828B2 (en) 1998-09-14 2004-12-14 The Trustees Of Princeton University Organometallic complexes as phosphorescent emitters in organic LEDs
US6645645B1 (en) 2000-05-30 2003-11-11 The Trustees Of Princeton University Phosphorescent organic light emitting devices
US6939624B2 (en) 2000-08-11 2005-09-06 Universal Display Corporation Organometallic compounds and emission-shifting organic electrophosphorescence
JP3965319B2 (ja) 2001-03-08 2007-08-29 ザ ユニヴァーシティ オブ ホンコン 有機金属発光材料
JP2003007469A (ja) 2001-06-25 2003-01-10 Canon Inc 発光素子及び表示装置
CN100530746C (zh) * 2002-03-18 2009-08-19 埃西斯创新有限公司;圣安德鲁斯大学理事会 用于发光器件的磷光质枝晶体
US6830830B2 (en) * 2002-04-18 2004-12-14 Canon Kabushiki Kaisha Semiconducting hole injection materials for organic light emitting devices
GB0209652D0 (en) 2002-04-26 2002-06-05 Univ Cambridge Tech Solution-processable phosphorescent materials
JP4574358B2 (ja) 2002-11-26 2010-11-04 株式会社半導体エネルギー研究所 燐光性化合物
WO2004060898A8 (en) * 2003-01-06 2004-10-21 Agency Science Tech & Res Quantum confined light-emitting dot material for low dimensional semiconductors
US6998492B2 (en) 2003-05-16 2006-02-14 Semiconductor Energy Laboratory Co., Ltd. Organometallic complex and light-emitting element containing the same
US7098295B2 (en) 2003-06-17 2006-08-29 National Tsing Hua University Electroluminescent conjugated polymers containing phosphorescent moieties and the application thereof in led
JP4198654B2 (ja) 2003-08-07 2008-12-17 三星エスディアイ株式会社 イリジウム化合物及びそれを採用した有機電界発光素子
GB0321781D0 (en) 2003-09-17 2003-10-15 Toppan Printing Company Ltd Electroluminescent device
US6870054B1 (en) 2003-12-05 2005-03-22 Eastman Kodak Company Synthesis for organometallic cyclometallated transition metal complexes
KR100682859B1 (ko) 2004-01-27 2007-02-15 삼성에스디아이 주식회사 폴리실세스퀴옥산계 화합물 및 이를 이용한 유기 전계발광 소자
US6936716B1 (en) 2004-05-17 2005-08-30 Au Optronics Corp. Organometallic complex for organic electroluminescent device
KR101233855B1 (ko) * 2004-06-09 2013-02-15 이 아이 듀폰 디 네모아 앤드 캄파니 유기금속 화합물 및 그러한 화합물로 만들어진 장치
US7015344B2 (en) 2004-06-29 2006-03-21 Eastman Kodak Company Synthesis of organometallic cyclometallated group viiib metal complexes
JP2006108458A (ja) * 2004-10-07 2006-04-20 Canon Inc 発光素子及び表示装置
CN100348594C (zh) * 2005-01-12 2007-11-14 武汉大学 一种铱配合物和铱配合物的电致磷光器件
CN100383151C (zh) * 2005-01-28 2008-04-23 北京大学 β-二酮配体的铱配合物及其电致磷光器件
KR101202342B1 (ko) 2005-02-04 2012-11-16 삼성디스플레이 주식회사 시클로메탈화 전이금속 착물 및 이를 이용한 유기 전계발광 소자
US7473477B2 (en) 2005-03-31 2009-01-06 Eastman Kodak Company Phosphorescent iridium complexes
KR101243917B1 (ko) * 2005-12-19 2013-03-14 삼성디스플레이 주식회사 전도성 고분자 조성물 및 이로부터 얻은 막을 구비한 전자소자
JP5151031B2 (ja) * 2006-01-05 2013-02-27 コニカミノルタホールディングス株式会社 有機エレクトロルミネッセンス素子、表示装置及び照明装置
JP2007214175A (ja) * 2006-02-07 2007-08-23 Konica Minolta Holdings Inc 有機エレクトロルミネッセンス素子、表示装置及び照明装置
JP5036810B2 (ja) * 2006-05-15 2012-09-26 日東電工株式会社 発光デバイスおよび組成物
WO2009006550A1 (en) 2007-07-05 2009-01-08 Nitto Denko Corporation Light emitting devices and compositions
US20090179552A1 (en) * 2007-11-15 2009-07-16 Jesse Froehlich Light emitting devices and compositions
WO2010045263A3 (en) 2008-10-13 2010-07-08 Nitto Denko Corporation Printable light-emitting compositions

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635249A (en) * 1993-03-08 1997-06-03 Dow Corning Corporation Luminescent ceramic coatings
US6018002A (en) * 1998-02-06 2000-01-25 Dow Corning Corporation Photoluminescent material from hydrogen silsesquioxane resin
US6406804B1 (en) * 1998-04-09 2002-06-18 Idemitsu Kosan Co., Ltd. Organic electroluminescent device
US6528188B1 (en) * 1999-09-16 2003-03-04 Denso Corporation Organic EL element for multi-color emission
US6517958B1 (en) * 2000-07-14 2003-02-11 Canon Kabushiki Kaisha Organic-inorganic hybrid light emitting devices (HLED)
US20030120099A1 (en) * 2000-10-27 2003-06-26 Laine Richard M. Well-defined nanosized building blocks for organic/inorganic nanocomposites
US6657224B2 (en) * 2001-06-28 2003-12-02 Emagin Corporation Organic light emitting diode devices using thermostable hole-injection and hole-transport compounds
US20030162299A1 (en) * 2002-02-08 2003-08-28 Canon Kabushiki Kaisha Light emissive iridium (III) complexes
US20060186791A1 (en) * 2003-05-29 2006-08-24 Osamu Yoshitake Organic electroluminescent element
US20050123760A1 (en) * 2003-10-15 2005-06-09 Cammack J. K. Light-emitting nanoparticle compositions
US20070184301A1 (en) * 2004-02-26 2007-08-09 Konica Minolta Holdings, Inc. Material for organic electroluminescence element, organic electroluminescence element, display device and illumination device
US7147938B2 (en) * 2004-06-30 2006-12-12 Eastman Kodak Company Organic element for electroluminescent devices

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070262302A1 (en) * 2006-05-15 2007-11-15 Amane Mochizuki Light emitting devices and compositions
US7993747B2 (en) 2006-05-15 2011-08-09 Nitto Denko Corporation Light emitting devices and compositions comprising lumophore-functionalized nanoparticles
US8609258B2 (en) 2007-07-05 2013-12-17 Nitto Denko Corporation Light emitting devices and compositions
US8597803B2 (en) 2007-11-15 2013-12-03 Nitto Denko Corporation Light emitting devices and compositions
US20090179552A1 (en) * 2007-11-15 2009-07-16 Jesse Froehlich Light emitting devices and compositions
US20110193075A1 (en) * 2008-10-13 2011-08-11 Amane Mochizuki Printable light-emitting compositions
US8721922B2 (en) * 2008-10-13 2014-05-13 Nitto Denko Corporation Printable light-emitting compositions
US20110031875A1 (en) * 2009-08-06 2011-02-10 National Tsing Hua University High-molecule-based organic light-emitting diode and fabrication method thereof
US8216634B2 (en) * 2009-08-06 2012-07-10 National Tsing Hua University High-molecule-based organic light-emitting diode and fabrication method thereof
US20140175391A1 (en) * 2012-12-21 2014-06-26 Samsung Display Co., Ltd. Organic light emitting diode display and manufacturing method thereof
US9508946B2 (en) * 2012-12-21 2016-11-29 Samsung Display Co., Ltd. Organic light emitting diode display and manufacturing method thereof
CN103694277A (zh) * 2013-12-12 2014-04-02 江西冠能光电材料有限公司 一种红色磷光有机发光二极管

Also Published As

Publication number Publication date Type
WO2009006550A1 (en) 2009-01-08 application
US8609258B2 (en) 2013-12-17 grant
JP5385903B2 (ja) 2014-01-08 grant
JP2010532423A (ja) 2010-10-07 application
US20120305895A1 (en) 2012-12-06 application

Similar Documents

Publication Publication Date Title
US8247086B2 (en) Organometallic complex and light-emitting element, light-emitting device and electronic device using the same
US20030017361A1 (en) Organometallic complexes as phosphorescent emitters in organic LEDs
Lin et al. A highly efficient host/dopant combination for blue organic electrophosphorescence devices
US20100244004A1 (en) Heteroleptic iridium complex
US20040121184A1 (en) Organic light emitting materials and devices
US20060008673A1 (en) Electroluminescent efficiency
US20050025993A1 (en) Materials and structures for enhancing the performance of organic light emitting devices
US20090167162A1 (en) Dibenzothiophene-containing materials in phosphorescent light emitting diodes
US20100187984A1 (en) Materials with aza-dibenzothiophene or aza-dibenzofuran core for pholed
US20090096360A1 (en) Organic electroluminescent device, display, and illuminating device
US20050064238A1 (en) 4,4'-Bis(carbazol-9-yl)-biphenyl based silicone compound and organic electroluminescent device using the same
US20040209116A1 (en) Organic light emitting devices with wide gap host materials
US20120292600A1 (en) Phosphorescent heteroleptic phenylbenzimidazole dopants
US20100326526A1 (en) Emissive aryl-heteroaryl compounds
US20130119354A1 (en) Heteroleptic iridium complex
JP2008069221A (ja) 有機エレクトロルミネッセンス素子材料、有機エレクトロルミネッセンス素子、表示装置及び照明装置
US8871361B2 (en) Tetradentate platinum complexes
US20100148663A1 (en) Blue Emitter with High Efficiency Based on Imidazo[1,2-f] Phenanthridine Iridium Complexes
US20110204333A1 (en) Phosphorescent emitters
WO2012023947A1 (en) Bicarbazole compounds for oleds
WO2010090925A1 (en) Ambipolar host in organic light emitting diode
US20130168656A1 (en) Cyclometallated tetradentate platinum complexes
JP2009001546A (ja) 有機金属錯体および有機金属錯体を含む組成物、発光素子、発光装置、電子機器、発光素子の作製方法
US20040142206A1 (en) Binaphthol based chromophores for the fabrication of blue organic light emitting diodes
JP2003515897A (ja) 有機led用燐光性ドーパントとしての式l2mxの錯体

Legal Events

Date Code Title Description
AS Assignment

Owner name: NITTO DENKO CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHAE, HYUN SIK;OHMORI, YUTAKA;FROEHLICH, JESSE;AND OTHERS;REEL/FRAME:022115/0076;SIGNING DATES FROM 20080922 TO 20081014