Electroluminescent display device

An electroluminescent display device having a plurality of pixels, each of the pixels comprising:

• a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, the driving transistor generating pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node;
• a light emitting element connected between a fifth node and an input terminal for a low-level source voltage, and
• an internal compensator comprising a second node coupled to the first node, and controlling a threshold voltage of the driving transistor with reference to a first scan signal, a second scan signal opposite to the first scan signal in phase, a third scan signal lagging the first scan signal in phase, a fourth scan signal leading the first scan signal in phase, and an emission signal and controlling voltages of the first to fifth nodes in accordance with operations of a plurality of switching transistors during an aging period and a programming period set with reference to the first to fourth scan signals and the emission signal such that the threshold voltage of the driving transistor is reflected in a gate-source voltage of the driving transistor in an emission period following the programming period.