An organic electroluminescence device and a method for reducing lateral
current leakage thereof are provided. The organic electroluminescence
device comprises a cathode, an anode, and an organic electroluminescence
unit disposed therebetween. The organic electroluminescence unit
comprises a light-emitting layer and a hole-injecting layer (HIL). The
HIL possesses a sufficient resistance achieved by adjusting the thickness
of the HIL and/or the concentration(s) and/or species of the conductive
dopant(s) in the HIL.