US 6,670,052 B2Granted

Organic light emitting diode

AssigneeFuji Xerox Co., Ltd.

InventorsHidekazu Hirose, Daisuke Okuda, Hirohito Yoneyama, Mieko Seki, Kiyokazu Mashimo, Takeshi Agata, Katsuhiro Sato

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Abstract

An organic light emitting diode having high luminous intensity, and providing stabilized performance even during repetitive use and easy to manufacture, by using a charge transporting polymer having the following general formulae (I-1) and (I-2). where Ar represents a substituted or non-substituted monovalent polynulear aromatic ring having number of aromatic rings of 3 to 10, X represents a substituted or non-substituted bivalent aromatic group, T represents a bivalent linear hydrocarbon group of 1 to 6 carbon atoms, m represents an integer of 1 to 3 and k represents 0 or 1.

Claims5

Dependent claims

An organic light emitting diode having one or more organic compound layers put between a pair of electrodes, the organic light emitting diode, comprising:

an anode and a cathode at least one of which is transparent or semitransparent, wherein at least one of the organic compound layers contains charge transporting polyethers comprising a repeating unit containing, as a partial structure, at least one member selected from the group consisting of structures represented by the following general formulae (I-1) and (I-2):
where Ar represents a substituted or non-substituted monovalent polynuclear aromatic ring having a number of aromatic rings of from 3 to 10, or a substituted or non-substituted monovalent condensed aromatic ring having a number of aromatic rings of from 2 to 10, X represents a substituted or non-substituted bivalent aromatic group, T represents a bivalent linear hydrocarbon group of 1 to 6 carbon atoms or a bivalent branched hydrocarbon group of 2 to 10 carbon atoms, m represents an integer of 1 to 3 and k represents 0 or 1.

Dependencies are inferred from the claim text.

Facts

Application: 09/938,675Filed 27 Aug 2001
Priority: JP 2000-25680128 Aug 2000
Published: US 2002/0050597 A12 May 2002
Granted: 30 Dec 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

C08G 73/026
Polyamines: wholly aromatic polyamines
C07C 211/57
Having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton: having amino groups bound to carbon atoms of…
C07C 211/60
Having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton: containing a…
C07C 211/61
Having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton: with at…