Display device and method of providing the same

A method of providing a display device, the method comprising:

• providing pixel electrodes of light emitting elements which are spaced apart from each other, a sacrificial layer on each of the pixel electrodes, and a pixel defining material layer on each of the sacrificial layers, on a substrate;
• providing a first bank material layer and a second bank material layer, on the pixel defining material layer;
• exposing the pixel defining material layer outside the first bank material layer and the second bank material layer, by etching the first bank material layer and the second bank material layer in areas respectively overlapping the pixel electrodes to provide bank openings of a bank structure at which side surfaces of both the first bank material layer and the second bank material layer are exposed;
• etching the side surfaces of the first bank material layer to expose a lower surface of the second bank material layer, at the bank openings, to provide a first bank layer and a second bank layer of the bank structure in which the bank openings are defined;
• exposing the pixel electrodes to outside the pixel defining layer, by etching the pixel defining material layer which is exposed and etching the sacrificial layers, at the bank openings of the bank structure;
• providing a first light emitting material layer on the pixel electrodes which are exposed and on the bank structure, the first light emitting material layer including a first light emitting layer on a first pixel electrode among the pixel electrodes and a first organic pattern which is separated from the first light emitting layer and on the bank structure;
• providing a first electrode material layer on the first light emitting material layer, the first electrode material layer including a first common electrode on the first light emitting layer and a first electrode pattern on the first organic pattern;
• providing a first inorganic material layer of an encapsulation layer, on the first electrode material layer;
• providing a mask pattern on the first inorganic material layer which overlaps the first pixel electrode at a first bank opening among the bank openings and overlaps a first portion of the first inorganic material layer which is adjacent to the first bank opening, the mask pattern exposing a second portion of the first inorganic material layer which is further from the first bank opening than the first portion;
• and
• removing the first portion and the second portion of the first inorganic material layer.