A flexible electroluminescent display device can include a flexible substrate including an active area and a bending area extending from one side of the active area to be bent; a thin film transistor and a light emitting diode on the active area; a touch screen panel on the active area; a touch circuit board connected to the touch screen panel and bent at an outer periphery of the bending area of the flexible substrate; a polarizer disposed on the touch screen panel and covering a portion of the touch circuit board; and a step compensating layer disposed between the touch screen panel and the polarizer, the step compensating layer compensates a step between the touch screen panel and the touch circuit board.