TWI452930B - 利用直接注入成三重態之有機發光裝置 - Google Patents

利用直接注入成三重態之有機發光裝置 Download PDF

Info

Publication number
TWI452930B
TWI452930B TW095111245A TW95111245A TWI452930B TW I452930 B TWI452930 B TW I452930B TW 095111245 A TW095111245 A TW 095111245A TW 95111245 A TW95111245 A TW 95111245A TW I452930 B TWI452930 B TW I452930B
Authority
TW
Taiwan
Prior art keywords
energy
layer
lumo
homo
phosphorescent dopant
Prior art date
Application number
TW095111245A
Other languages
English (en)
Chinese (zh)
Other versions
TW200644719A (en
Inventor
Mark E Thompson
Stephen Forrest
Julia J Brown
Original Assignee
Univ Southern California
Universal Display Corp
Univ Princeton
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 US11/123,155 external-priority patent/US20060251921A1/en
Application filed by Univ Southern California, Universal Display Corp, Univ Princeton filed Critical Univ Southern California
Publication of TW200644719A publication Critical patent/TW200644719A/zh
Application granted granted Critical
Publication of TWI452930B publication Critical patent/TWI452930B/zh

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/10OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00Electroluminescent light sources
    • H05B33/12Light sources with substantially two-dimensional [2D] radiating surfaces
    • H05B33/14Light sources with substantially two-dimensional [2D] 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
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00Electroluminescent light sources
    • H05B33/12Light sources with substantially two-dimensional [2D] radiating surfaces
    • H05B33/18Light sources with substantially two-dimensional [2D] radiating surfaces characterised by the nature or concentration of the activator
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00Electroluminescent light sources
    • H05B33/12Light sources with substantially two-dimensional [2D] radiating surfaces
    • H05B33/20Light sources with substantially two-dimensional [2D] radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00Properties of the organic materials covered by group H10K85/00
    • H10K2101/10Triplet emission
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00Properties of the organic materials covered by group H10K85/00
    • H10K2101/30Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00Properties of the organic materials covered by group H10K85/00
    • H10K2101/40Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/10OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14Carrier transporting layers
    • H10K50/15Hole transporting layers
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/10OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14Carrier transporting layers
    • H10K50/16Electron transporting layers
    • 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
TW095111245A 2005-03-31 2006-03-30 利用直接注入成三重態之有機發光裝置 TWI452930B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US66686705P 2005-03-31 2005-03-31
US11/123,155 US20060251921A1 (en) 2005-05-06 2005-05-06 OLEDs utilizing direct injection to the triplet state
US11/274,091 US7683536B2 (en) 2005-03-31 2005-11-16 OLEDs utilizing direct injection to the triplet state

Publications (2)

Publication Number Publication Date
TW200644719A TW200644719A (en) 2006-12-16
TWI452930B true TWI452930B (zh) 2014-09-11

Family

ID=36701570

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095111245A TWI452930B (zh) 2005-03-31 2006-03-30 利用直接注入成三重態之有機發光裝置

Country Status (7)

Country Link
US (1) US7683536B2 (https=)
EP (1) EP1878068B1 (https=)
JP (3) JP5883548B2 (https=)
KR (1) KR101255871B1 (https=)
CN (1) CN101156257B (https=)
TW (1) TWI452930B (https=)
WO (1) WO2006105387A2 (https=)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4412264B2 (ja) * 2005-09-12 2010-02-10 ソニー株式会社 表示装置および表示装置の製造方法
US8148891B2 (en) * 2005-10-04 2012-04-03 Universal Display Corporation Electron impeding layer for high efficiency phosphorescent OLEDs
US8008856B2 (en) * 2006-04-19 2011-08-30 Massachusetts Institute Of Technology Light emitting devices with agent to increase the fraction of excitons formed as a singlet
US7879401B2 (en) * 2006-12-22 2011-02-01 The Regents Of The University Of Michigan Organic vapor jet deposition using an exhaust
JP5300255B2 (ja) * 2007-02-07 2013-09-25 ユー・ディー・シー アイルランド リミテッド 有機電界発光素子
WO2008144549A1 (en) * 2007-05-18 2008-11-27 Massachusetts Institute Of Technology Organic light emitting devices
DE102008033563A1 (de) 2008-07-17 2010-01-21 Merck Patent Gmbh Komplexe mit kleinen Singulett-Triplett-Energie-Abständen zur Verwendung in opto-elektronischen Bauteilen (Singulett-Harvesting-Effekt)
JP5325707B2 (ja) * 2008-09-01 2013-10-23 株式会社半導体エネルギー研究所 発光素子
DE102008063589A1 (de) * 2008-10-07 2010-04-08 Osram Opto Semiconductors Gmbh Strahlungsemittierende Vorrichtung
KR100994118B1 (ko) * 2009-01-13 2010-11-15 삼성모바일디스플레이주식회사 유기 발광 소자 및 그 제조 방법
JP5550311B2 (ja) * 2009-11-10 2014-07-16 キヤノン株式会社 有機el素子
JP4620802B1 (ja) * 2010-01-20 2011-01-26 富士フイルム株式会社 有機電界発光素子
CN102201541B (zh) * 2010-03-23 2015-11-25 株式会社半导体能源研究所 发光元件、发光装置、电子设备及照明装置
TWI506121B (zh) 2010-03-31 2015-11-01 Semiconductor Energy Lab 發光元件,發光裝置,電子裝置以及照明裝置
JP2013201153A (ja) * 2010-06-08 2013-10-03 Idemitsu Kosan Co Ltd 有機エレクトロルミネッセンス素子
JP2012033918A (ja) * 2010-07-08 2012-02-16 Mitsubishi Chemicals Corp 有機電界発光素子、有機電界発光デバイス、有機el表示装置及び有機el照明
DE112011102558B4 (de) * 2010-07-30 2022-01-05 Merck Patent Gmbh Organische Elektrolumineszenzvorrichtung
KR20250026895A (ko) * 2011-02-16 2025-02-25 가부시키가이샤 한도오따이 에네루기 켄큐쇼 발광 엘리먼트
KR101429537B1 (ko) * 2011-07-11 2014-08-12 엘지디스플레이 주식회사 유기발광소자
WO2013009708A1 (en) * 2011-07-14 2013-01-17 Universal Display Corporation Inorganic hosts in oleds
KR102051790B1 (ko) 2011-08-22 2019-12-04 메르크 파텐트 게엠베하 유기 전계발광 디바이스
KR101419810B1 (ko) * 2012-04-10 2014-07-15 서울대학교산학협력단 엑시플렉스를 형성하는 공동 호스트를 포함하는 유기 발광 소자
US9698386B2 (en) 2012-04-13 2017-07-04 Oti Lumionics Inc. Functionalization of a substrate
US8853070B2 (en) 2012-04-13 2014-10-07 Oti Lumionics Inc. Functionalization of a substrate
DE112013007882B4 (de) 2012-04-20 2025-10-02 Semiconductor Energy Laboratory Co., Ltd. Lichtemittierende Vorrichtung
JP5959970B2 (ja) 2012-07-20 2016-08-02 出光興産株式会社 有機エレクトロルミネッセンス素子
KR101960943B1 (ko) * 2012-11-28 2019-03-20 엘지디스플레이 주식회사 유기 발광 표시 장치
KR102255202B1 (ko) * 2013-05-29 2021-05-25 삼성디스플레이 주식회사 유기 발광 소자
EP3005433B1 (de) * 2013-06-06 2023-02-22 Merck Patent GmbH Organische elektrolumineszenzvorrichtung
KR102078296B1 (ko) * 2013-06-21 2020-02-18 삼성디스플레이 주식회사 유기 발광 소자
US9385348B2 (en) 2013-08-29 2016-07-05 The Regents Of The University Of Michigan Organic electronic devices with multiple solution-processed layers
DE112014003470T5 (de) * 2013-08-29 2016-05-25 The Regents Of The University Of Michigan Organische elektronische Vorrichtungen mit mehreren lösungsverarbeiteten Schichten
US9666822B2 (en) 2013-12-17 2017-05-30 The Regents Of The University Of Michigan Extended OLED operational lifetime through phosphorescent dopant profile management
JP6307993B2 (ja) * 2014-04-07 2018-04-11 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、及び、電子デバイス
KR102353647B1 (ko) * 2014-08-29 2022-01-20 가부시키가이샤 한도오따이 에네루기 켄큐쇼 발광 소자, 표시 장치, 전자 기기, 및 조명 장치
US20160248030A1 (en) * 2014-09-04 2016-08-25 Boe Technology Group Co., Ltd. Organic electroluminescent display deivce, a fabricating method thereof and a display device
US10115918B2 (en) 2014-11-05 2018-10-30 Okinawa Institute Of Science And Technology School Corporation Doping engineered hole transport layer for perovskite-based device
KR102376968B1 (ko) * 2014-11-17 2022-03-22 삼성디스플레이 주식회사 유기 발광 소자
DE102015200699A1 (de) * 2015-01-19 2016-07-21 Siemens Aktiengesellschaft Aminophosphazen-Basen als n-Dotierstoffe in der organischen Elektronik
CN108292714B (zh) * 2015-06-29 2020-04-28 Imec 非营利协会 有机层的高分辨率图案化方法
KR102914550B1 (ko) 2015-09-30 2026-01-19 가부시키가이샤 한도오따이 에네루기 켄큐쇼 발광 소자, 표시 장치, 전자 기기, 및 조명 장치
KR102903423B1 (ko) 2015-09-30 2025-12-24 가부시키가이샤 한도오따이 에네루기 켄큐쇼 발광 소자, 표시 장치, 전자 기기, 및 조명 장치
CN113937228A (zh) 2015-12-01 2022-01-14 株式会社半导体能源研究所 发光元件、发光装置、电子设备及照明装置
KR102641614B1 (ko) * 2016-09-29 2024-02-27 엘지디스플레이 주식회사 유기발광다이오드 및 이를 포함하는 유기발광 표시장치
JP7082984B2 (ja) * 2017-02-20 2022-06-09 ノヴァレッド ゲーエムベーハー 電子半導体デバイスおよびその電子半導体デバイスの製造方法および化合物
KR102395782B1 (ko) * 2017-07-31 2022-05-09 삼성전자주식회사 유기 발광 소자
US11289667B2 (en) * 2018-02-13 2022-03-29 Sharp Kabushiki Kaisha Light-emitting device with high electron injection efficiency
JP7158945B2 (ja) * 2018-08-02 2022-10-24 キヤノン株式会社 白色有機el素子
EP3975279B1 (en) 2018-10-15 2024-03-13 Samsung Display Co., Ltd. Organic electroluminescent device emitting blue light
JP7500164B2 (ja) * 2019-05-07 2024-06-17 キヤノン株式会社 有機発光素子、それを有する表示装置、撮像装置、照明装置、移動体
KR102349278B1 (ko) 2019-09-03 2022-01-11 삼성디스플레이 주식회사 유기 발광 소자
KR102862788B1 (ko) 2019-12-06 2025-09-22 엘지디스플레이 주식회사 백색 유기 발광 소자 및 이를 이용한 표시 장치
WO2021192158A1 (ja) * 2020-03-26 2021-09-30 シャープ株式会社 発光素子、表示デバイス
CN114068834B (zh) 2020-07-31 2024-04-19 武汉天马微电子有限公司 有机发光器件、显示器件、电子装置、车载显示屏及车辆
JP7670497B2 (ja) 2021-02-08 2025-04-30 上海天馬微電子有限公司 有機発光装置、表示装置、電子機器、車載ディスプレイ及び車両
CN117158124A (zh) * 2021-04-01 2023-12-01 国立研究开发法人科学技术振兴机构 有机el元件
CN114883504B (zh) * 2022-04-29 2025-10-31 武汉华星光电半导体显示技术有限公司 显示面板
CN121014259A (zh) * 2023-04-18 2025-11-25 夏普显示科技株式会社 发光元件及显示装置
WO2025182720A1 (ja) * 2024-02-29 2025-09-04 日鉄ケミカル&マテリアル株式会社 有機電界発光素子用混合材料及び有機電界発光素子

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020113545A1 (en) * 2000-12-18 2002-08-22 Chihaya Adachi Highly efficient oleds using doped ambipolar conductive molecular organic thin films
TW543342B (en) * 2000-12-28 2003-07-21 Semiconductor Energy Lab Luminescent device having an organic luminescent element
US20040209116A1 (en) * 2003-04-21 2004-10-21 Xiaofan Ren Organic light emitting devices with wide gap host materials

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769292A (en) * 1987-03-02 1988-09-06 Eastman Kodak Company Electroluminescent device with modified thin film luminescent zone
GB8909011D0 (en) * 1989-04-20 1989-06-07 Friend Richard H Electroluminescent devices
JP3249297B2 (ja) * 1994-07-14 2002-01-21 三洋電機株式会社 有機電界発光素子
US5707745A (en) * 1994-12-13 1998-01-13 The Trustees Of Princeton University Multicolor organic light emitting devices
US6548956B2 (en) * 1994-12-13 2003-04-15 The Trustees Of Princeton University Transparent contacts for organic devices
US5703436A (en) * 1994-12-13 1997-12-30 The Trustees Of Princeton University Transparent contacts for organic devices
AU4048897A (en) * 1996-08-12 1998-03-06 Trustees Of Princeton University, The Non-polymeric flexible organic light emitting device
US5844363A (en) * 1997-01-23 1998-12-01 The Trustees Of Princeton Univ. Vacuum deposited, non-polymeric flexible organic light emitting devices
US6013982A (en) * 1996-12-23 2000-01-11 The Trustees Of Princeton University Multicolor display devices
US6091195A (en) * 1997-02-03 2000-07-18 The Trustees Of Princeton University Displays having mesa pixel configuration
US5834893A (en) * 1996-12-23 1998-11-10 The Trustees Of Princeton University High efficiency organic light emitting devices with light directing structures
US5925980A (en) * 1997-05-01 1999-07-20 Motorola, Inc. Organic electroluminescent device with graded region
US6303238B1 (en) * 1997-12-01 2001-10-16 The Trustees Of Princeton University OLEDs doped with phosphorescent compounds
US6337102B1 (en) * 1997-11-17 2002-01-08 The Trustees Of Princeton University Low pressure vapor phase deposition of organic thin films
US6087196A (en) * 1998-01-30 2000-07-11 The Trustees Of Princeton University Fabrication of organic semiconductor devices using ink jet printing
GB9805476D0 (en) 1998-03-13 1998-05-13 Cambridge Display Tech Ltd Electroluminescent devices
US6830828B2 (en) * 1998-09-14 2004-12-14 The Trustees Of Princeton University Organometallic complexes as phosphorescent emitters in organic LEDs
US6097147A (en) * 1998-09-14 2000-08-01 The Trustees Of Princeton University Structure for high efficiency electroluminescent device
GB9822963D0 (en) * 1998-10-20 1998-12-16 Agner Erik Improvements in or relating to chromatography
US6310360B1 (en) * 1999-07-21 2001-10-30 The Trustees Of Princeton University Intersystem crossing agents for efficient utilization of excitons in organic light emitting devices
US6294398B1 (en) * 1999-11-23 2001-09-25 The Trustees Of Princeton University Method for patterning devices
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
AU2002306698A1 (en) * 2001-03-14 2002-09-24 The Trustees Of Princeton University Materials and devices for blue phosphorescence based organic light emitting diodes
US7071615B2 (en) * 2001-08-20 2006-07-04 Universal Display Corporation Transparent electrodes
KR100439648B1 (ko) * 2001-08-29 2004-07-12 엘지.필립스 엘시디 주식회사 유기전계발광소자
KR100918988B1 (ko) * 2001-08-29 2009-09-25 더 트러스티즈 오브 프린스턴 유니버시티 금속착물을 포함하는 호울수송층을 포함한 발광장치 및 이의 제작 방법 및 호울수송 촉진 방법
US6835469B2 (en) 2001-10-17 2004-12-28 The University Of Southern California Phosphorescent compounds and devices comprising the same
JP4032783B2 (ja) * 2002-03-15 2008-01-16 株式会社デンソー 有機el素子
US20030230980A1 (en) * 2002-06-18 2003-12-18 Forrest Stephen R Very low voltage, high efficiency phosphorescent oled in a p-i-n structure
US6835169B2 (en) * 2002-07-11 2004-12-28 Stephen K. Tamaribuchi Ergonomic handheld exercisers
US20040043140A1 (en) 2002-08-21 2004-03-04 Ramesh Jagannathan Solid state lighting using compressed fluid coatings
KR100624406B1 (ko) * 2002-12-30 2006-09-18 삼성에스디아이 주식회사 비페닐 유도체 및 이를 채용한 유기 전계 발광 소자
JP2004319456A (ja) * 2003-03-31 2004-11-11 Sanyo Electric Co Ltd 有機エレクトロルミネッセンス素子
TWI428053B (zh) * 2004-02-09 2014-02-21 Idemitsu Kosan Co Organic electroluminescent element
TWI382079B (zh) * 2004-07-30 2013-01-11 Sanyo Electric Co 有機電場發光元件及有機電場發光顯示裝置
JP4850521B2 (ja) * 2005-02-28 2012-01-11 富士フイルム株式会社 有機電界発光素子
US8143613B2 (en) * 2007-11-27 2012-03-27 The Regents Of The University Of Michigan Organic light emitting device having multiple separate emissive layers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020113545A1 (en) * 2000-12-18 2002-08-22 Chihaya Adachi Highly efficient oleds using doped ambipolar conductive molecular organic thin films
TW543342B (en) * 2000-12-28 2003-07-21 Semiconductor Energy Lab Luminescent device having an organic luminescent element
US20040209116A1 (en) * 2003-04-21 2004-10-21 Xiaofan Ren Organic light emitting devices with wide gap host materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Adachi et. al., " Nearly 100% internal phosphorescence efficiency in an organic light emitting device", JOURNAL OF APPLIED PHYSICS, VOL90, P. 5048~5051, 2001/11/15 *

Also Published As

Publication number Publication date
JP2008535266A (ja) 2008-08-28
US20060279204A1 (en) 2006-12-14
JP2013048265A (ja) 2013-03-07
KR20070114376A (ko) 2007-12-03
CN101156257B (zh) 2012-01-18
US7683536B2 (en) 2010-03-23
WO2006105387A3 (en) 2007-06-21
EP1878068A2 (en) 2008-01-16
JP5662402B2 (ja) 2015-01-28
JP2016028459A (ja) 2016-02-25
KR101255871B1 (ko) 2013-04-17
CN101156257A (zh) 2008-04-02
TW200644719A (en) 2006-12-16
EP1878068B1 (en) 2013-11-13
WO2006105387A8 (en) 2007-11-22
WO2006105387A2 (en) 2006-10-05
JP5883548B2 (ja) 2016-03-15

Similar Documents

Publication Publication Date Title
TWI452930B (zh) 利用直接注入成三重態之有機發光裝置
US8143613B2 (en) Organic light emitting device having multiple separate emissive layers
US7474048B2 (en) Fluorescent filtered electrophosphorescence
US9379346B2 (en) Stacked white OLED having separate red, green and blue sub-elements
US8945722B2 (en) Materials and architectures for efficient harvesting of singlet and triplet excitons for white light emitting OLEDs
EP1932193B1 (en) Organic light emitting device
US8021763B2 (en) Phosphorescent OLED with interlayer
US20070247061A1 (en) Multiple dopant emissive layer OLEDs
US8080937B2 (en) OLED having a charge transport enhancement layer
TWI435868B (zh) 使用鄰苯二甲醯亞胺化合物之有機電子裝置
WO2004047196A2 (en) Structure and method of fabricating organic devices
EP2025016A1 (en) Organic light-emitting device with a phosphor-sensitized fluorescent emission layer
US8330351B2 (en) Multiple dopant emissive layer OLEDs
WO2008108912A1 (en) Organic light emitting device having an external microcavity
US20070103066A1 (en) Stacked OLEDs with a reflective conductive layer
US20060251921A1 (en) OLEDs utilizing direct injection to the triplet state