KR20060071399A - 유기 el 소자 및 표시장치 - Google Patents
유기 el 소자 및 표시장치 Download PDFInfo
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- KR20060071399A KR20060071399A KR1020067003093A KR20067003093A KR20060071399A KR 20060071399 A KR20060071399 A KR 20060071399A KR 1020067003093 A KR1020067003093 A KR 1020067003093A KR 20067003093 A KR20067003093 A KR 20067003093A KR 20060071399 A KR20060071399 A KR 20060071399A
- Authority
- KR
- South Korea
- Prior art keywords
- light emitting
- emitting layer
- layer
- organic
- green light
- Prior art date
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Abstract
Description
Claims (10)
- 발광색이 다른 복수(複數)의 발광층(發光層)을 양극과 음극 사이에 적층해서 이루어지는 유기(有機) EL 소자(素子)에 있어서,상기 발광층 사이의 적어도 1개소(箇所)에 유기 재료로 이루어지는 중간층을 설치한것을 특징으로 하는 유기 EL 소자.
- 제1항에 있어서,상기 중간층의 HOMO-LUMO 사이의 에너지 갭은, 해당(當該) 중간층에 인접(隣接)해서 배치되는 발광층을 구성하는 적어도 하나의 재료의 H OMO-LUMO 사이의 에너지 갭보다도 큰것을 특징으로 하는 유기 EL 소자.
- 제1항에 있어서,상기 중간층은 정공(正孔) 수송성(輸送性) 또한 전자(電子) 저지성(阻止性) 또는, 전자 수송성 또한 정공 저지성을 가지고 있는것을 특징으로 하는 유기 EL 소자.
- 제1항에 있어서,상기 양극과 음극 사이에는 적색 발광층, 녹색 발광층, 청색 발광층이 이 순(順)으로 적층되어 있는것을 특징으로 하는 유기 EL 소자.
- 제4항에 있어서,상기 양극과 음극 사이에는 해당 양극 측으로부터 적색 발광층, 녹색 발광층, 청색 발광층이 이 순으로 적층되고,적어도 상기 녹색 발광층과 청색 발광층 사이에 정공 수송성 또한 전자 저지성을 가지는 중간층이 설치되어 있는것을 특징으로 하는 유기 EL 소자.
- 제5항에 있어서,상기 정공 수송성을 가지는 중간층의 LUMO의 에너지 레벨이 녹색 발광층의 전자 수송성 성분의 LUMO의 에너지 레벨보다도 높은것을 특징으로 하는 유기 EL 소자.
- 제4항에 있어서,상기 양극과 음극 사이에는, 해당 양극 측으로부터 적색 발광층, 녹색 발광층, 청색 발광층이 이 순으로 적층되고, 적어도 상기 적색 발광층과 녹색 발광층 사이에 정공 수송성 또한 전자 저지성을 가지는 중간층이 설치되어 있는것을 특징으로 하는 유기 EL 소자.
- 제7항에 있어서,상기 정공 수송성을 가지는 중간층의 LUMO의 에너지 레벨이 적색 발광층의 전자 수송성 성분의 LUMO의 에너지 레벨보다도 높은것을 특징으로 하는 유기 EL 소자.
- 발광색이 다른 복수의 발광층을 양극과 음극 사이에 적층해서 이루어지는 유기 EL 소자의 광 취출면 측에 컬러 필터를 설치해서 이루어지는 표시장치에 있어서,상기 유기 EL 소자는 상기 발광층 사이의 적어도 1개소에 중간층을 설치해서 이루어지는것을 특징으로 하는 표시장치.
- 제9항에 있어서,상기 유기 EL 소자는 상기 양극과 음극 사이에 적색 발광층, 녹색 발광층, 청색 발광층을 이 순으로 적층시키고 있는것을 특징으로 하는 표시장치.
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JP2004019247A JP2005100921A (ja) | 2003-08-22 | 2004-01-28 | 有機el素子および表示装置 |
PCT/JP2004/012327 WO2005027586A1 (ja) | 2003-08-22 | 2004-08-20 | 有機el素子および表示装置 |
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TW200515831A (en) | 2005-05-01 |
WO2005027586A1 (ja) | 2005-03-24 |
WO2005027586B1 (ja) | 2005-05-26 |
US8067885B2 (en) | 2011-11-29 |
TWI290441B (en) | 2007-11-21 |
JP2005100921A (ja) | 2005-04-14 |
US20060227079A1 (en) | 2006-10-12 |
EP1667494A4 (en) | 2008-10-15 |
KR101108215B1 (ko) | 2012-01-31 |
EP1667494A1 (en) | 2006-06-07 |
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