Patent ID: 9627628
Date: 2017-04-18
CPC Classifications: C09K,H01L

Claim:
1. An organic light emitting diode device comprising: an anode; a cathode facing the anode; an emission layer between the anode and the cathode; and an electron transport layer (ETL) between the cathode and the emission layer, where the ETL comprises a compound represented by Chemical Formula 1, and the emission layer comprises a compound represented by Chemical Formula 2 as a host material: wherein, in Chemical Formula 1, L R n1 is an integer ranging from 0 to 2, and n2 and n3 are each independently integers ranging from 0 to 3; and wherein, in Chemical Formula 2, L R R m1 is an integer ranging from 0 to 2, and m2 and m3 are each independently integers ranging from 0 to 4 wherein the compound represented by Chemical Formula 2 excludes the following compound: