Electroluminescent display device

An electroluminescent display device, comprising:

• a base substrate including an active area and a non-active area which surrounds the active area;
• a planarization layer disposed on the base substrate and extending from the active area to the non-active area;
• a bank disposed over the planarization layer;
• an organic layer disposed over the bank;
• a cathode disposed over the organic layer;
• a trench pattern disposed in the non-active area where the cathode and the organic layer are removed, exposing an upper surface of the bank;
• a step relieving layer filling up the trench pattern and planarizing an upper portion of the trench pattern;
• and
• an inorganic layer disposed to cover the step relieving layer,
• wherein the step relieving layer is disposed within a region covered by the inorganic layer.