The organic electroluminescence device (organic EL device) is a general term for light emitting devices using an organic compound as a light emitting material of a light emitting layer, and for example, devices are known using a polymer light emitting material as a light emitting material of a light emitting layer.
Though there is no specific suggestion, there is proposed a polyamine layer provided between a light emitting layer and an anode as a means for elongating the life of the device (monthly Display, '03, September, p. 10 (2003)).
However, when a layer of a polymer compound composed of the following repeating unit is used as a polyamine layer, device performances such as device life and the like are not necessarily satisfactory.
