Patent ID: 6790540
Filing Date: 2004-09-14
Classification: C09K,H01L,H05B,Y10S

Abstract:
An organic electroluminescent element which comprises an organic electroluminescent element material between two electrodes at least one of which is transparent, said organic electroluminescent element material being represented by general formula (1) wherein Ar1 is a group represented by the following formula (2), Ar2 is a group represented by the following formula (3) or (4); in formulas (2), (3) and (4), R1-R4 are independently hydrogen, alkyl with 1-6 carbon atoms, alkoxy with 1-6 carbon atoms, aryloxy with 6-18 carbon atoms, phenyl, substituted phenyl with up to 18 carbon atoms, amino, substituted amino or hydroxyl; R1 and R2 or R3 and R4 in adjacent position may join together to form a saturated or unsaturated 5- or 6-membered ring; R5 is hydrogen, alkyl with 6-20 carbon atoms, alkoxy with 1-6 carbon atoms, aryloxy with 6-18 carbon atoms, alkyl with 1-16 carbon atoms optionally containing one or two or more substituents selected from phenyl, amino, cyano, nitro, hydroxyl and halogen, an aryl with 6-20 carbon atoms or an aralkyl with 7-20 carbon atoms; X is O or S; Z is a metal linked to N in formula (1) and N constituting the hetero ring of Ar2 and is a divalent or trivalent metal selected from zinc, aluminum, copper, beryllium, ruthenium, cobalt, rhodium, iridium and platinum; and n is 2 or 3.