KR100620884B1 - 유기 일렉트로루미네선스 장치, 유기 일렉트로루미네선스장치의 제조 방법 및 전자기기 - Google Patents
유기 일렉트로루미네선스 장치, 유기 일렉트로루미네선스장치의 제조 방법 및 전자기기 Download PDFInfo
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- KR100620884B1 KR100620884B1 KR1020040095635A KR20040095635A KR100620884B1 KR 100620884 B1 KR100620884 B1 KR 100620884B1 KR 1020040095635 A KR1020040095635 A KR 1020040095635A KR 20040095635 A KR20040095635 A KR 20040095635A KR 100620884 B1 KR100620884 B1 KR 100620884B1
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- layer
- light emitting
- organic light
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- cathode
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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
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/828—Transparent cathodes, e.g. comprising thin metal layers
-
- 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
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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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
- 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
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/917—Electroluminescent
Abstract
Description
비교예 1 | 비교예 2 | 실시예 1 | |
R | 1 | 0.3 | 1 |
G | 1 | 1.1 | 1.3 |
B | 0.2 | 1 | 1.1 |
비교예 1 | 비교예 2 | 실시예 1 | |
R | 1 | 1 | 1.5 |
G | 1 | 0.8 | 1.9 |
B | 0.01 | 1 | 1 |
Claims (12)
- 양극과 음극 사이에 유기 발광층을 포함하여 이루어지는 적층체(積層體)를 갖는 복수의 유기 발광 소자를 구비한 유기 일렉트로루미네선스 장치로서,상기 유기 발광층이 고분자 발광 재료로 이루어지고,상기 복수의 유기 발광 소자는 상기 복수의 유기 발광 소자를 구성하는 유기 발광 재료 중, 가장 LUMO 레벨이 높은 제 1 LUMO 레벨을 갖는 제 1 유기 발광 재료를 구비한 제 1 유기 발광 소자와, 상기 복수의 유기 발광 소자를 구성하는 유기 발광 재료 중, 가장 LUMO 레벨이 낮은 제 2 LUMO 레벨을 갖는 제 2 유기 발광 재료를 구비한 제 2 유기 발광 소자를 포함하며,상기 음극은 상기 제 1 유기 발광 소자와 상기 제 2 유기 발광 소자에 공통으로 형성되어 있고, 알칼리 금속의 불화물 또는 산화물, 또는 알칼리토류 금속의 불화물 또는 산화물, 또는 유기물과의 착체(錯體) 또는 화합물로 이루어지는 제 1 층과, 그 일함수(work function)와 상기 제 1 LUMO 레벨의 차이가 0.7eV 이내인 원자를 포함하는 제 2 층을 상기 유기 발광층 쪽으로부터 이 순서로 포함하는 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 제 1 항에 있어서,상기 제 1 LUMO 레벨은 3.0eV에서 3.5eV의 범위에 있고,상기 제 2 LUMO 레벨은 2.0eV에서 2.5eV의 범위에 있고,상기 제 2 층이 일함수가 3.0eV에서 4.0eV인 원자를 포함하는 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 제 1 항 또는 제 2 항에 있어서,상기 제 1 층은 불화 리튬이며,상기 제 2 층을 구성하는 적어도 하나의 원자의 일함수와 상기 제 2 LUMO 레벨의 차이가 2.0eV 이내인 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 제 1 항에 있어서,상기 제 2 층이 마그네슘과 은의 합금, 마그네슘과 알루미늄의 합금, 마그네슘과 크롬의 합금 중에서 선택되는 1 또는 2 이상의 합금으로 이루어지는 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 제 1 항에 있어서,상기 제 2 층이 상기 적층체의 최외층(最外層)을 구성하고 있는 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 제 1 항에 있어서,상기 제 2 층의 외층 쪽에 투명 전극이 구비되어 이루어지는 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 제 1 항에 있어서,상기 제 2 층의 외층 쪽에 SiOxNy(x, y는 정수)로 표시되는 보호막이 구비되어 이루어지는 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 제 1 항에 있어서,상기 제 2 층이 그 외층 쪽을 향하여 마그네슘의 조성비가 감소하는 구배를 가지고 있는 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 제 1 항에 있어서,상기 제 2 층에서, 마그네슘과 그 밖의 금속과의 중량비가 10:1∼1:10인 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 기판과,양극과 음극 사이에 유기 발광층을 포함하여 이루어지는 적층체를 갖는 유기 발광 소자를 구비한 유기 일렉트로루미네선스 장치로서,상기 유기 발광층이 고분자 발광 재료로 이루어지고,상기 유기 발광 소자는 LUMO 레벨이 2.0eV에서 2.5eV의 범위에 있는 유기 발광층을 가지며,상기 음극은 불화 리튬으로 이루어지는 제 1 층과, 마그네슘과 은의 합금, 마그네슘과 알루미늄의 합금, 마그네슘과 크롬의 합금 중에서 선택되는 1 또는 2 이상의 합금으로 이루어지는 제 2 층을 상기 유기 발광층 쪽으로부터 이 순서로 포함하는 것을 특징으로 하는 유기 일렉트로루미네선스 장치.
- 제 1 항 또는 제 2 항 또는 제 10 항 중 어느 한 항에 기재된 유기 일렉트로루미네선스 장치를 구비한 것을 특징으로 하는 전자기기.
- 기판 위에 양극을 형성하는 공정과,상기 양극 위에 유기 발광층을 포함하는 기능층을 액상법(液相法)에 의해 형성하는 공정과,상기 기능층 위에 알칼리 금속의 불화물 또는 산화물, 또는 알칼리토류 금속의 불화물 또는 산화물, 또는 유기물과의 착체 또는 화합물로 이루어지는 음극 제 1 층을 형성하는 공정과,음극 제 1 층 위에 마그네슘과 은의 합금, 마그네슘과 알루미늄의 합금, 마그네슘과 크롬의 합금 중에서 선택되는 1 또는 2 이상의 합금으로부터 음극 제 2 층을 형성하는 공정을 갖는 유기 일렉트로루미네선스 장치의 제조 방법.
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JP2004276589A JP4276603B2 (ja) | 2003-12-16 | 2004-09-24 | 有機エレクトロルミネッセンス装置および電子機器 |
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EP1760798B1 (en) * | 2005-08-31 | 2012-01-11 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
EP1760776B1 (en) * | 2005-08-31 | 2019-12-25 | Semiconductor Energy Laboratory Co., Ltd. | Manufacturing method for semiconductor device with flexible substrate |
GB2434915A (en) * | 2006-02-03 | 2007-08-08 | Cdt Oxford Ltd | Phosphoescent OLED for full colour display |
JP4770519B2 (ja) * | 2006-03-01 | 2011-09-14 | セイコーエプソン株式会社 | 有機発光装置、有機発光装置の製造方法および電子機器 |
KR100703457B1 (ko) * | 2006-04-07 | 2007-04-03 | 삼성에스디아이 주식회사 | 유기 전계 발광 표시장치 및 그 제조 방법 |
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