The invention provides a top emission type organic electroluminescent device and a method of fabricating the same. An organic electroluminescent device includes a first substrate including a plurality of pixel regions; a thin film transistor on the first substrate and in each pixel region; a second substrate facing the first substrate; an organic electroluminescent diode on the second substrate and connected to the thin film transistor; a seal pattern at edges of the first and second substrates; and an adhesive layer including a plurality of conductive balls, an inner space defined by the first substrate, the second substrate and the seal pattern filled with the adhesive layer.