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Title:
ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC ELECTROLUMINESCENT LIGHTING DEVICE, AND ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/176194
Kind Code:
A1
Abstract:
An organic electroluminescent element which comprises a positive electrode, a negative electrode and a light emitting layer that is arranged between the positive electrode and the negative electrode. This organic electroluminescent element is characterized in that: at least the light emitting layer is formed by a wet film-forming method; the light emitting layer contains a charge transport material and a light emitting material; the charge transport material contains a hole transport material and an electron transport material, each having a specific partial structure; the light emitting material is composed of at least three kinds of materials and has at least two maximum emission wavelengths in the emission spectrum; and the organic electroluminescent element has a hole injection/transport layer between the positive electrode and the light emitting layer such that the hole injection/transport layer is adjacent to the light emitting layer.

Inventors:
TSURUTANI YASUYUKI (JP)
GOROHMARU HIDEKI (JP)
IMADA ICHIRO (JP)
Application Number:
PCT/JP2013/064286
Publication Date:
November 28, 2013
Filing Date:
May 22, 2013
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
H01L51/50; C07C211/61; C07D401/14; C07D403/10; C07D403/14; C07D405/10; C07D405/14; C07D409/14; C07F15/00; C09K11/06; G09F9/30; H01L27/32
Domestic Patent References:
WO2006008976A12006-01-26
WO2010001830A12010-01-07
WO2005019373A22005-03-03
WO2005089024A12005-09-22
WO2005022962A12005-03-10
WO2004084260A22004-09-30
Foreign References:
JP2011253722A2011-12-15
JP2003086370A2003-03-20
JP2007220459A2007-08-30
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JPH0741759A1995-02-10
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Other References:
"Organic Chemistry, Biochemical Nomenclature 2nd edition", vol. 1, 1992, NANKO-DO
APPL. PHYS. LETT., vol. 60, 1992, pages 2711
APPLIED PHYSICS LETTERS, vol. 70, 1997, pages 152
IEEE TRANSACTIONS ON ELECTRON DEVICES, vol. 44, 1997, pages 1245
SID 04 DIGEST, pages 154
SHIZUO TOKITO; CHIHAYA ADACHI; HIDEYUKI MURATA: "Organic EL Display", 20 August 2004, OHM
See also references of EP 2858135A4
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
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