The present disclosure provides a light emitting display device including a first substrate and a second substrate and a light emitting part disposed therebetween. The first substrate includes an active layer, source and drain electrodes, an insulating layer, and a gate electrode. The active layer is doped with first dopant ions and second dopant ions. The light emitting display may have a fast response characteristic due to a reduced resistance of the active layer and an improved characteristic of current drift.