Organic electro-luminescent device

Details Organic electro-luminescent device Organic electro-luminescent device

2005-03-29

2005-03-29

Garrett, Dawn (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S423100, C428S917000, C313S504000, C313S506000

Reexamination Certificate

active

06872476

ABSTRACT:
An organic electro-luminescent device comprising one or more organic compound layers sandwiched between a pair of electrodes, at least one of which electrodes is transparent or semi-transparent, wherein at least one of the one or more organic compound layers comprises at least one polyurethane compound having a repeating unit represented by the following general formula (I). At least one of A and B in general formula (I) represents a divalent group represented by one of the following general formulae (II) to (VI).in-line-formulae description="In-line Formulae" end="lead"?—(OCONH-A-NHCOO—B)n—  General Formula (I)in-line-formulae description="In-line Formulae" end="tail"?

REFERENCES:
patent: 6582876 (2003-06-01), Wolk et al.

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