Organic light-emitting display apparatus and method of manufacturing the same

A method of manufacturing an organic light-emitting display apparatus, the method comprising:

• surrounding a plurality of pixels by using a pixel-defining layer so as to expose an emission area of the plurality of pixels on a substrate;
• forming a plurality of spacers on the pixel-defining layer;
• and
• depositing an emission layer in the emission area by placing a mask on each spacer of the plurality of spacers,
• wherein the plurality of spacers are disposed on the pixel-defining layer and occupy areas around the plurality of pixels except for a portion of the pixel defining layer that is exposed in a mesh shape of intersecting horizontal and vertical lines that intersect the plurality of pixels,
• wherein each spacer of the plurality of spacers comprises an isolated body that is separate from the other spacers of the plurality of spacers in a plane parallel to the substrate,
• wherein each spacer of the plurality of spacers comprises four side surfaces, each of the side surfaces comprising two planar portions formed by the mesh shape and coplanar with each other, and a concave portion disposed between the two planar portions,
• wherein each spacer of the plurality of spacers is surrounded by four adjacent pixels from among the plurality of pixels, the four adjacent pixels being partially disposed in respective ones of the concave portions,
• wherein a distance in the plane parallel to the substrate between each of the concave portions of each spacer of the plurality of spacers and a respective one of the four adjacent pixels among the plurality of pixels is within 1 μm,
• wherein, when viewed from the top of the substrate, each of the four concave portions and each of the four adjacent pixels are disposed in engagement with each other,
• wherein a height of the spacer is within 3.5 μm, and
• wherein the height is perpendicular to the plane parallel to the substrate and is with respect to a stack direction of the pixel-defining layer and each spacer of the plurality of spacers.