Andrea B Mayer, 53Bridgeport, CT

2002011, Aug 15, 2002

Mar 12, 1999

09/267441

ROLF WEHRMANN - KREFELD, DE
HELMUT WERNER HEUER - KREFELD, DE
FRIEDRICH JONAS - AACHEN, DE
ANDREAS ELSCHNER - MULHEIM, DE
ANDREA MAYER - BROOKLYN NY, US
MARTIN HUPPAUFF - STUTTGART, DE
HARTWIG ANDRIES - RUPELMONDE, BE

H05B033/12

428/690000, 428/917000, 313/504000, 313/506000

Electroluminescent assemblies containing a substrate, an anode, an electroluminescent element and a cathode, where at least one of the two electrodes is transparent or semitransparent in the visible spectral region and the electroluminescent element can contain in order: a hole injection zone, a hole transport zone, an electroluminescent zone, an electron transport zone and an electron injection zone, characterized in that the hole injection zone contains an uncharged or cationic polythiophene of the formula (I), where Qand Qrepresent, independently of one another, hydrogen, substituted or unsubstituted (C-C)-alkyl, CHOH or (C-C)-aryl or Qand Qtogether represent —(CH)—CH— where m=0 to 12, preferably 1 to 5, (C-C)-arylene, and n represents an integer from 2 to 10,000, preferably from 5 to 5000, and the hole transport zone adjoining the hole injection zone contains one or more aromatic amine compounds.