Display apparatus and method of manufacturing the same

A display apparatus, comprising:

• a substrate;
• a display area disposed on the substrate and comprising a plurality of pixels,
• wherein each of the plurality of pixels comprises a first electrode, a second electrode, and an intermediate layer disposed between the first electrode and the second electrode,
• wherein the intermediate layer comprises an emission layer;
• a thin-film encapsulation layer encapsulating the plurality of pixels, and comprising a first inorganic encapsulation layer, a second inorganic encapsulation layer, and an organic encapsulation layer disposed between the first inorganic encapsulation layer and the second inorganic encapsulation layer;
• a non-display area disposed outside the display area;
• a first planarization layer extending from the display area into the non-display area and disposed between the substrate and the first electrode;
• a second planarization layer extending from the display area into the non-display area and disposed on the first planarization layer;
• a pixel-defining layer covering at least one edge of the first electrode, extending from the display area into the non-display area, and disposed on the second planarization layer;
• a plurality of holes disposed in the non-display area,
• wherein each of the holes comprises an opening that passes through the second planarization layer and the pixel-defining layer;
• and
• a first etching prevention layer disposed on the first planarization layer under the holes, wherein
• the intermediate layer and the second electrode extend into the non-display area and are disposed inside each of the holes,
• the first inorganic encapsulation layer extends into the non-display area and covers an entirety of the second electrode inside each of the holes and inner surfaces of each of the holes, and
• an entirety of each of the holes is filled by the organic encapsulation layer.

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

• forming a first planarization layer on a substrate;
• forming a first etching prevention layer on the first planarization layer;
• forming a second planarization layer on the first etching prevention layer;
• forming a pixel-defining layer on the second planarization layer;
• and
• forming a plurality of first holes that pass through the second planarization layer and the pixel-defining layer in a display area, wherein
• the display area is disposed on the substrate and comprises a plurality of pixels,
• each of the pixels comprises a first electrode, a second electrode, and an intermediate layer comprising an emission layer and disposed between the first electrode and the second electrode,
• the display apparatus comprises a thin-film encapsulation layer encapsulating the display area and comprising a first inorganic encapsulation layer, a second inorganic encapsulation layer, and an organic encapsulation layer disposed between the first inorganic encapsulation layer and the second inorganic encapsulation layer,
• the intermediate layer and the second electrode are formed on a top surface of the first etching prevention layer and a top surface of the pixel-defining layer, and
• the first inorganic encapsulation layer covers an entirety of the second electrode inside each of the first holes and inner surfaces of each of the first holes, and an entirety of each of the first holes is filled by the organic encapsulation layer.