Liquid crystal device and organic electroluminescence device using the same

摘要

An organic electroluminescence device is made to show an improved carrier transporting ability and an improved carrier injecting property by doping a liquid crystal compound having a high degree of carrier mobility without generating any ionic current. The organic electroluminescence device comprises a carrier transport layer formed by doping a smectic liquid crystal compound having a hexagonal order structure with a Lewis acid compound, a light-emitting layer and a protection layer arranged between the carrier transport layer and the light-emitting layer and composed of an organic compound having a carrier transporting property of the same type as that of carrier transport layer and a carrier conducting property of the type different from that of the carrier transport layer.