Display device and manufacturing method of the display device

A display device comprising;

• a plurality of pixels arranged on a substrate;
• a plurality of pixel electrodes, wherein each pixel electrode of the plurality of pixel electrodes corresponds to a pixel of the plurality of pixels;
• a bank between adjacent pixel electrodes of the plurality of pixel electrodes, wherein the bank exposes a part of the pixel electrodes;
• an electroluminescent layer on each of the plurality of pixel electrodes;
• a common electrode above the bank and the electroluminescent layer;
• and
• an auxiliary wiring on an area where the bank and the common electrode are overlapped;
• wherein an edge part of the auxiliary wiring includes a sidewall surface between a bottom surface of the auxiliary wiring and an overhanging top surface of the auxiliary wiring.

A method of manufacturing a display device comprising steps of;

• forming a plurality of pixel circuits arranged on a substrate;
• forming a plurality of pixel electrodes, wherein each pixel electrode of the plurality of pixel electrodes corresponds to a pixel circuit of the plurality of pixel circuits;
• forming a bank between adjacent pixel electrodes of the plurality of pixel electrodes;
• exposing a part of the pixel electrodes;
• forming an electroluminescent layer on the plurality of pixel electrodes;
• forming a common electrode above the bank and the electroluminescent layer;
• forming a plurality of insulators on exposed regions of the pixel electrodes;
• and
• forming an auxiliary wiring on the common electrode between adjacent insulators of the plurality of insulators;
• wherein a top surface of each insulator of the plurality of insulators is farther from the substrate than a top surface of the common electrode.