ORGANIC ELECTROLUMINESCENT DEVICE, DISPLAY AND ILLUMINATING DEVICE

摘要

An organic electroluminescent element comprising an anode; a cathode; at least two light emission layers provided between the anode and the cathode; and at least one intermediate layer provided between the two light emission layers, wherein the two light emission layers each comprise the same host compound A; one of the two light emission layers comprises light emission dopant A and the other light emission layer comprises light emission dopant B which is different from light emission dopant A; and the intermediate layer comprises host compound A.