Electroluminescent element

Details Electroluminescent element Electroluminescent element

2006-04-25

2006-04-25

Garrett, Dawn (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S040000, C257S103000, C528S394000, C528S398000, C528S483000, C252S301350

Reexamination Certificate

active

07033680

ABSTRACT:
An electroluminescent device comprising electrodes consisting of a pair of an anode and a cathode, at least one of the electrodes being either transparent or translucent, and an organic layer interposed between said electrodes, wherein said organic layer comprises a copolymer comprising in the main chain thereof 9-oxo-9-phosphafluorene-2,7-diyl units and arylene units, represented by formula (1) below, and the thickness of said organic layer is from 1 nm to 10 μm:wherein R represents hydrogen, alkyl, cycloalkyl, aralkyl, aryl, alkyloxy, cycloalkyloxy, aralkyloxy, or aryloxy; Ar represents arylene; and n is an integer of 3 to 30,000.

REFERENCES:
patent: 1 378 532 (2004-01-01), None
patent: 2000-252065 (2000-09-01), None
patent: WO 02/072661 (2002-09-01), None
Y. Makioka et al., “Phosphafluorene-Based π-Conjugated Polymers”,Proceedings of the 79thAnnual Spring Meeting of The Chemical Societyt of Japan,3D209, 2001, p. 281, with partial English translation.

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