Display panel and manufacturing method of the same

A display panel manufacturing method comprising:

• providing a preliminary display panel including a base layer, a first anode disposed on the base layer, a pixel defining layer disposed on the base layer and defining a first emission opening exposing a portion of the first anode, and a partition disposed on the pixel defining layer and defining a first partition opening corresponding to the first emission opening;
• forming a first emission pattern within the first emission opening and the first partition opening;
• forming a first cathode on the first emission pattern;
• forming a first mask pattern on a portion of the first cathode and the partition adjacent to the first partition opening;
• etching using the first mask pattern;
• and
• forming a first protective layer on the first cathode and the partition,
• wherein, in the forming the first emission pattern, a 1-1 dummy layer including a same material as a material of the first emission pattern and disposed on the partition is formed,
• wherein, in the etching using the first mask pattern, a 1-1 dummy pattern is formed from the 1-1 dummy layer, and
• wherein the first protective layer covers an outer surface of the 1-1 dummy pattern.