Display apparatus including layers of different densities and method of manufacturing the same

A display apparatus comprising:

• a base substrate;
• a light emitting structure disposed on the base substrate;
• and
• a thin film encapsulation layer disposed on the light emitting structure and including:
• at least one inorganic layer;
• and
• at least one organic layer, wherein
• the at least one inorganic layer includes:
• a lower high density layer having a first density;
• a low density layer disposed on the lower high density layer and having a second density lower than the first density;
• and
• an upper high density layer disposed on the low density layer and having a third density higher than the second density, and
• the low density layer is in contact with the lower high density layer and the upper high density layer.

A display apparatus comprising:

• a base substrate;
• a light emitting structure disposed on the base substrate;
• and
• a thin film encapsulation layer disposed on the light emitting structure and including:
• at least one inorganic layer;
• and
• at least one organic layer, wherein
• the at least one inorganic layer includes:
• a high density layer having a first density;
• and
• a low density layer having a second density lower than the first density, the high density layer and the low density layer are in contact with each other,
• the base substrate includes:
• a hole area that transmits light;
• a hole peripheral area adjacent to the hole area in a non-display area;
• a display area adjacent to the hole peripheral area;
• and
• a trench disposed at the hole peripheral area, and
• the at least one inorganic layer is disposed in the trench.