Display panel, method of manufacturing the same, and display device having the same

A method of manufacturing a display panel, the method comprising:

• forming an auxiliary electrode in a first area defined in a base substrate;
• forming a first electrode in a second area defined in the base substrate and spaced apart from the first area when viewed in a plan view;
• forming a first light emitting unit on the first electrode;
• forming an conductive thin film layer on the first light emitting unit,
• forming a second light emitting unit on the conductive thin film layer;
• removing at least a portion of the first light emitting unit, the conductive thin film layer, and the second light emitting unit to form a first contact hole through which an upper surface of the auxiliary electrode is exposed;
• forming a insulating layer on an exposing surface of the conductive thin film layer, which is exposed through the first contact hole;
• and
• forming a second electrode on the insulating layer.

A display device, comprising:

• a display panel;
• and
• a controller controlling the display panel, the display panel including:
• a base substrate,
• an auxiliary electrode on the base substrate,
• a first electrode spaced apart from the auxiliary electrode when viewed in a plan view,
• a first light emitting unit on the auxiliary electrode and the first electrode,
• an conductive thin film layer on the first light emitting unit,
• a second light emitting unit on the conductive thin film layer, a first contact hole through at least the first light emitting unit, the conductive thin film layer, and the second light emitting unit to expose the auxiliary electrode,
• a insulating layer including a first part in the first contact hole, and
• a second electrode including a first electrode part and a second electrode part, the first electrode part being on the first part of the insulating layer and having at least a portion in the first contact hole, and the second electrode part extending from the first electrode part and overlapping the first electrode when viewed in a plan view, the second electrode part being the second light emitting unit,
• wherein a first portion of the first part of the insulating layer is between the first electrode part and the conductive thin film layer to insulate the first electrode part from the conductive thin film layer.