Display apparatus comprising alignment mark

An organic light emitting display apparatus comprising:

• a substrate;
• a display unit comprising a plurality of organic light emitting elements, each organic light emitting element comprising a first electrode layer, an emission layer, and a second electrode layer sequentially formed on the substrate;
• a sealing unit formed on the substrate and surrounding an edge of the display unit;
• an alignment mark unit formed on a same plane above the substrate as the second electrode layer and is disposed between the display unit and the sealing unit, wherein the alignment mark unit is formed of a same material as a material used to form the second electrode layer;
• and
• an encapsulation substrate sealed to the substrate by the sealing unit and encapsulating the display unit and the alignment mark unit, the encapsulation substrate comprising an alignment mark recognition structure formed in a portion thereof that faces the alignment mark unit.

A display apparatus comprising:

• a display unit comprising a plurality of display elements;
• an alignment mark unit formed adjacent the display unit;
• and
• an encapsulation substrate sealed to the display unit such that the display unit and the alignment mark unit within a sealed area which seals the display unit and the alignment mark unit from external humidity or oxygen, the encapsulation substrate further comprising an alignment mark recognition structure facing the alignment mark unit within the sealed area.