Organic electroluminescent display device and method for manufacturing the same

A method for manufacturing an organic electroluminescent display device, comprising the steps of:

• forming an underlying layer on a substrate;
• forming a conductive layer on the underlying layer;
• forming a mask layer having the shape of the plurality of pixel electrodes on the conductive layer;
• removing a portion of the conductive layer exposed from the mask layer so as to pattern the conductive layer into a shape of a plurality of pixel electrodes;
• patterning the underlying layer so as to overhang ends of the plurality of pixel electrodes;
• forming an insulating layer to cover the plurality of pixel electrodes and the underlying layer so as to extend between the pixel electrodes adjacent to each other, and below the ends of the plurality of pixel electrodes;
• patterning the insulating layer so as to expose at least center portions of the respective pixel electrodes except for the ends thereof;
• forming an organic electroluminescent film with the inclusion of a common layer that continuously covers exposed areas of the plurality of pixel electrodes from the insulating layer, and the insulating layer;
• and
• forming a common electrode on the organic electroluminescent film.

An organic electroluminescent display device, comprising:

• a substrate;
• a plurality of pixel electrodes that are disposed in the substrate;
• an insulating layer that is disposed in areas between the pixel electrodes adjacent to each other, and extends integrally to upper and lower portions of ends of the pixel electrodes adjacent to each other;
• an organic electroluminescent film that is disposed in the substrate with the inclusion of a common layer that continuously covers the plurality of pixel electrodes and the insulating layer;
• and
• a common electrode that is disposed on the organic electroluminescent film;
• wherein the insulating layer has a concave portion,
• wherein the common layer is curved along the concave portion,
• wherein a bottom surface of the concave portion of the insulating layer is located at a position lower than upper surfaces of the plurality of pixel electrodes, and
• wherein a lower surface of the common layer is located at a position lower than the upper surfaces of the plurality of pixel electrodes above the concave portion of the insulating layer.