An electroluminescence display device includes a first switching device for transferring a data current, which represents a data signal, using a first scan signal, a second switching device for transferring the data current from the first switching device using a second scan signal, a storage device for storing a charge voltage according to the data current transferred from the second switching device, a coupling unit for changing the charge voltage stored in the storage device in accordance with the first scan signal into a changed voltage, driving devices for generating a driving current in accordance with the changed voltage, and an organic light emitting diode for emitting light in accordance with the driving current.