EL device comprising a tertiary amine, alcohol soluble Alq3 derivatives or mixtures and a polymeric binder

摘要

Electroluminescent displays have a substrate, an anode, an electroluminescent element and a cathode. At least one of the electrodes is transparent to visible light and the electroluminescent element has hole-injection zones, hole transport zones, electroluminescent zones, electron transport zones and electron injection zone(s), in the given sequence, and each of these zones can also assume the functions of the other zones. The novelty is that the hole injection and hole transport zone(s) contain an optionally substituted tris-1,3,5-(aminophenyl)benzene compound (I) and the electroluminescent element contains an luminescent material selected from substituted oxine complexes of mono-, di- and trivalent metal cations with ligand(s) derived from compounds of the 8-hydroxyquinoline type. Electroluminescent displays have a substrate, an anode, an electroluminescent element and a cathode. At least one of the electrodes is transparent to visible light and the electroluminescent element has hole-injection, hole transport, electroluminescent, electron transport and electron injection zone(s), in the given sequence, and each of these zones can also assume the functions of the other zones. The novelty is that the hole injection and hole transport zone(s) contain an optionally substituted tris-1,3,5-(aminophenyl)benzene compound (I) and the electroluminescent element contains an luminescent material selected from substituted oxine complexes (II) of mono-, di- and trivalent metal cations with ligand(s) derived from compounds of the 8-hydroxyquinoline type, of formulae (II-1), (II-2) and (II-3); M+ = a monovalent metal ion; M2+ = a divalent metal ion; M3+ = a trivalent metal ion; Q, Q' = ligands of formula (III); A1, A2 = optionally substituted 6-membered aryl rings .