Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2008-07-15
2008-07-15
Morris, Terrel (Department: 1794)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257S040000, C257SE51024, C257SE51026, C257SE51047, C257SE51051, C564S309000
Reexamination Certificate
active
11201263
ABSTRACT:
The invention is to provide an organic EL device having a long life time that can reduce the driving voltage of the organic EL device, and to provide a material having a small ionization potential and exhibiting a large hole mobility by using as a layer or a zone. The organic electroluminescence device comprises a pair of electrodes and an organic light emitting layer sandwiched in the electrodes, characterized in that a hole transporting zone provided between the electrodes comprises the phenylenediamine derivative represented by the specific structural formulae, and the phenylenediamine derivative has a hole mobility of 10−4cm2/V·s or more upon using as a layer or a zone, with the organic light emitting layer containing a charge injection auxiliary.
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Machine translation of JP-09-301934, Kido et al.
Hosokawa Chishio
Kawamura Hisayuki
Crouse Brett A
Idemitsu Kosan Co. Ltd.
Morris Terrel
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