LG Display Co., Ltd.
Organic electroluminescence device

Abstract:

Disclosed is an organic electroluminescence device including an anode, a cathode, at least two light-emission sub-stacks and a charge generation layer. The charge generation layer is located between the light-emission sub-stacks, and the charge generation layer includes a stack of a n-type charge generation layer and a p-type charge generation layer. The n-type charge generation layer includes a Compound of Formula 1 and a Compound of Formula 2. The present organic electroluminescence device improves injection and transport properties of electrons to lower driving voltage of the device, improves efficiency and lifespan of the device, and has excellent thermal/electrical stability for long driving duration of the device.