Invention Grant
- Patent Title: Organic electroluminescent element, composition for organic electroluminescent element, and organic electroluminescent device
- Patent Title (中): 有机电致发光元件,有机电致发光元件用组合物和有机电致发光元件
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Application No.: US13941828Application Date: 2013-07-15
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Publication No.: US09028980B2Publication Date: 2015-05-12
- Inventor: Tomohiro Abe , Futoshi Tanaka , Kazuki Okabe , Atsushi Takahashi , Koichiro Iida , Ichiro Imada
- Applicant: Mitsubishi Chemical Corporation
- Applicant Address: JP Chiyoda-ku
- Assignee: Mitsubishi Chemical Corporation
- Current Assignee: Mitsubishi Chemical Corporation
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-006014 20110114; JP2011-249769 20111115
- Main IPC: H01L51/00
- IPC: H01L51/00 ; C08G73/02 ; C08L79/02 ; H01L51/50 ; C09B57/00 ; C09B1/00

Abstract:
The present invention relates to an organic electroluminescent element which comprises two or more hole injection/transport layers each formed by a wet film formation method using a composition containing, as a hole-injecting/transporting compound, an arylamine polymer compound that has a repeating unit having a triarylamine structure therein, in which when the number of atoms present on the path which is the smallest in the number of atoms present thereon, of the paths which each connect the nonaromatic tertiary nitrogen atoms contained in any two triarylamine structures present in each polymer compound, is taken as N: the minimum number of atoms between nitrogen atoms in the compound, then the N in each hole injection/transport layer is in a specific state.
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