CN101156257B - 利用到三重态的直接注入的oled - Google Patents

利用到三重态的直接注入的oled Download PDF

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Publication number
CN101156257B
CN101156257B CN2006800109084A CN200680010908A CN101156257B CN 101156257 B CN101156257 B CN 101156257B CN 2006800109084 A CN2006800109084 A CN 2006800109084A CN 200680010908 A CN200680010908 A CN 200680010908A CN 101156257 B CN101156257 B CN 101156257B
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CN
China
Prior art keywords
energy
layer
lumo
homo
phosphorescent dopant
Prior art date
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Expired - Lifetime
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CN2006800109084A
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English (en)
Chinese (zh)
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CN101156257A (zh
Inventor
马克·E·汤普森
斯蒂芬·福里斯特
朱丽亚·J·布朗
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.)
Universal Display Corp
Princeton University
University of Southern California
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Universal Display Corp
Princeton University
University of Southern California
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Priority claimed from US11/123,155 external-priority patent/US20060251921A1/en
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Publication of CN101156257A publication Critical patent/CN101156257A/zh
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    • 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
    • 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
    • H05B33/14—Light 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
    • 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
    • H05B33/18—Light sources with substantially two-dimensional [2D] radiating surfaces characterised by the nature or concentration of the activator
    • 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
    • H05B33/20—Light 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00—Properties of the organic materials covered by group H10K85/00
    • H10K2101/10—Triplet emission
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00—Properties of the organic materials covered by group H10K85/00
    • H10K2101/30—Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00—Properties of the organic materials covered by group H10K85/00
    • H10K2101/40—Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent 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]
    • H10K50/14—Carrier transporting layers
    • H10K50/15—Hole transporting 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]
    • H10K50/14—Carrier transporting layers
    • H10K50/16—Electron transporting layers
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
CN2006800109084A 2005-03-31 2006-03-29 利用到三重态的直接注入的oled Expired - Lifetime CN101156257B (zh)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US66686705P 2005-03-31 2005-03-31
US60/666,867 2005-03-31
US11/123,155 US20060251921A1 (en) 2005-05-06 2005-05-06 OLEDs utilizing direct injection to the triplet state
US11/123,155 2005-05-06
US11/274,091 2005-11-16
US11/274,091 US7683536B2 (en) 2005-03-31 2005-11-16 OLEDs utilizing direct injection to the triplet state
PCT/US2006/011881 WO2006105387A2 (en) 2005-03-31 2006-03-29 Oleds utilizing direct injection to the triplet state

Publications (2)

Publication Number Publication Date
CN101156257A CN101156257A (zh) 2008-04-02
CN101156257B true CN101156257B (zh) 2012-01-18

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CN2006800109084A Expired - Lifetime CN101156257B (zh) 2005-03-31 2006-03-29 利用到三重态的直接注入的oled

Country Status (7)

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

Families Citing this family (60)

* 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
DE202012013738U1 (de) * 2011-02-16 2020-11-05 Semiconductor Energy Laboratory Co., Ltd. Lichtemittierendes Element
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
CN103765623B (zh) * 2011-08-22 2016-06-01 默克专利有限公司 有机电致发光器件
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
KR20240129241A (ko) * 2012-04-20 2024-08-27 가부시키가이샤 한도오따이 에네루기 켄큐쇼 발광 소자, 발광 장치, 전자 기기, 및 조명 장치
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
JP2016529730A (ja) * 2013-08-29 2016-09-23 ザ・リージェンツ・オブ・ザ・ユニバーシティ・オブ・ミシガン 多数の溶液処理層を有する有機電子デバイス
US9385348B2 (en) 2013-08-29 2016-07-05 The Regents Of The University Of Michigan Organic electronic devices with multiple solution-processed layers
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
CN111354874B (zh) 2015-09-30 2023-07-04 株式会社半导体能源研究所 发光元件、显示装置、电子设备及照明装置
DE112016005489B4 (de) * 2015-12-01 2024-09-26 Semiconductor Energy Laboratory Co., Ltd. Licht emittierendes Element
KR102641614B1 (ko) 2016-09-29 2024-02-27 엘지디스플레이 주식회사 유기발광다이오드 및 이를 포함하는 유기발광 표시장치
US11539014B2 (en) * 2017-02-20 2022-12-27 Novaled Gmbh Electronic semiconducting device, method for preparing the electronic semiconducting device and compound
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
EP3640999B1 (en) 2018-10-15 2022-01-05 cynora GmbH 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
CN111987233B (zh) * 2019-05-24 2024-04-02 环球展览公司 有机电致发光材料和装置
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
US12648347B2 (en) 2020-03-26 2026-06-02 Sharp Kabushiki Kaisha Light emitting element and display device
US12133400B2 (en) 2020-07-31 2024-10-29 Wuhan Tianma Micro-Electronics Co., Ltd. Organic light-emitting device, display device, electronic apparatus, onboard display, and vehicle
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
KR102890885B1 (ko) * 2021-04-01 2025-11-26 고쿠리츠켄큐카이하츠호진 카가쿠기쥬츠신코키코 유기 el 소자
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
WO2024218861A1 (ja) * 2023-04-18 2024-10-24 シャープディスプレイテクノロジー株式会社 発光素子及び表示装置
CN122439453A (zh) * 2024-02-29 2026-07-21 日铁化学材料株式会社 有机电场发光元件用混合材料及有机电场发光元件

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1407837A (zh) * 2001-08-29 2003-04-02 Lg.飞利浦Lcd有限公司 有机电致发光器件及其制造方法

Family Cites Families (40)

* 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
US5844363A (en) 1997-01-23 1998-12-01 The Trustees Of Princeton Univ. Vacuum deposited, non-polymeric flexible organic light emitting devices
CA2263150C (en) 1996-08-12 2005-06-21 The Trustees Of Princeton University Non-polymeric flexible organic light emitting device
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
US6573651B2 (en) 2000-12-18 2003-06-03 The Trustees Of Princeton University Highly efficient OLEDs using doped ambipolar conductive molecular organic thin films
SG138466A1 (en) * 2000-12-28 2008-01-28 Semiconductor Energy Lab Luminescent device
US7294849B2 (en) * 2001-03-14 2007-11-13 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
JP4409942B2 (ja) * 2001-08-29 2010-02-03 ザ トラスティーズ オブ プリンストン ユニバーシテイ 金属錯体を含むキャリア輸送層を有する有機発光デバイス
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
US20040209116A1 (en) 2003-04-21 2004-10-21 Xiaofan Ren Organic light emitting devices with wide gap host materials
TWI428053B (zh) * 2004-02-09 2014-02-21 Idemitsu Kosan Co Organic electroluminescent element
KR101249172B1 (ko) * 2004-07-30 2013-03-29 산요덴키가부시키가이샤 유기 일렉트로루미네센스 소자
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1407837A (zh) * 2001-08-29 2003-04-02 Lg.飞利浦Lcd有限公司 有机电致发光器件及其制造方法

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TW200644719A (en) 2006-12-16
KR20070114376A (ko) 2007-12-03
JP2008535266A (ja) 2008-08-28
WO2006105387A8 (en) 2007-11-22
JP5662402B2 (ja) 2015-01-28
JP2016028459A (ja) 2016-02-25
JP2013048265A (ja) 2013-03-07
CN101156257A (zh) 2008-04-02
WO2006105387A2 (en) 2006-10-05
KR101255871B1 (ko) 2013-04-17
EP1878068B1 (en) 2013-11-13
US20060279204A1 (en) 2006-12-14
WO2006105387A3 (en) 2007-06-21
JP5883548B2 (ja) 2016-03-15
TWI452930B (zh) 2014-09-11
EP1878068A2 (en) 2008-01-16
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