| (84) |
Designated Contracting States: |
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DE FI FR GB NL |
| (30) |
Priority: |
23.03.2007 JP 2007077833
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| (43) |
Date of publication of application: |
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24.09.2008 Bulletin 2008/39 |
| (73) |
Proprietor: Semiconductor Energy Laboratory Co., Ltd. |
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Atsugi-shi, Kanagawa-ken 243-0036 (JP) |
|
| (72) |
Inventors: |
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- Nomura, Ryoji
Atsugi-shi
Kanagawa-ken 243-0036 (JP)
- Satoshi, Seo
Atsugi-shi
Kanagawa-ken 243-0036 (JP)
- Nobuharu, Ohsawa
Atsugi-shi
Kanagawa-ken 243-0036 (JP)
- Tsunenori, Suzuki
Atsugi-shi
Kanagawa-ken 243-0036 (JP)
- Sachiko, Kawakami
Atsugi-shi
Kanagawa-ken 243-0036 (JP)
- Harue, Osaka
Atsugi-shi
Kanagawa-ken 243-0036 (JP)
- Hideko, Inoue
Atsugi-shi
Kanagawa-ken 243-0036 (JP)
|
| (74) |
Representative: Grünecker Patent- und Rechtsanwälte
PartG mbB |
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Leopoldstraße 4 80802 München 80802 München (DE) |
| (56) |
References cited: :
EP-A- 1 670 083 US-A1- 2006 063 031
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EP-A- 1 690 866 US-A1- 2006 105 201
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OF PHYSICS, MELVILLE, NY, US, vol. 81, no. 21, 18 November 2002 (2002-11-18), pages
4070-4072, XP001142713 ISSN: 0003-6951
- LEE YOUNG ET AL: "Fabrication of highly efficient and stable doped red organic light-emitting
device using 2-methyl-9,10-di(2-napthyl)anthracene and tris(8-hydroxyquinolinato)aluminum
as cohost materials" APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS,
MELVILLE, NY, US, vol. 89, no. 18, 2 November 2006 (2006-11-02), pages 183515-183515,
XP012086790 ISSN: 0003-6951
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