A dual panel-type active matrix organic electroluminescent device includes a gate line disposed along a first direction on a first substrate, a data line disposed along a second direction on the first substrate, a power line disposed along the second direction on the first substrate and spaced apart from the data line to define a pixel region with the gate and data lines, the power line and the gate line both formed of a same material during a same process, a switching thin film transistor disposed on the first substrate near a crossing of the gate and data lines, a driving thin film transistor disposed on the first substrate near a crossing of the gate and power lines, a connecting pattern within the pixel region on the first substrate formed of an insulating material, and a connecting electrode disposed within the pixel region on the first substrate to cover the connecting pattern and electrically interconnecting the driving thin film transistor to an organic electroluminescent diode.