Patent ID: 8906731

Claim:
A method of manufacturing an organic light-emitting display apparatus, the method comprising: forming a first electrode on a substrate; forming an intermediate layer including an organic emission layer on the first electrode; and forming a second electrode on the intermediate layer, wherein the forming of the intermediate layer is performed using an organic layer deposition apparatus including: a deposition source for discharging a deposition material; a deposition source nozzle unit arranged at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; and a patterning slit sheet assembly including; a patterning slit sheet including a slit unit having a plurality of slits, and non-slit region that is located along edges of the slit unit, the patterning slit sheet being smaller than the substrate in at least one of the first direction or a second direction perpendicular to the first direction; a frame combined with the patterning slit sheet to support the patterning slit sheet, a surface of the frame facing away from the deposition source being combined with a surface of the patterning alit sheet facing toward the deposition source in a state that a tensile force is applied to the patterning slit sheet and a compression force is applied to the frame; and a shielding unit comprising a first portion extending on a first inner side of the frame to a first inner edge overlapping an area including an edge of the edges of the slit unit and at least a portion of at least one of the slits, and a second portion extending on a second inner side of the frame opposite the first inner side to a second inner edge overlapping an area including another edge of the edges of the slit unit, and at least a portion of at least one of the slits, the first and second inner edges being spaced apart in the second direction and corresponding to edge portions of a deposition area on the substrate, the first portion extending continuously on the first inner side of the frame from a third inner side of the frame to a fourth inner side of the frame opposite the third inner side, and the second portion extending continuously on the second inner side of the frame from the third inner side of the frame to the fourth inner side of the frame, wherein the substrate is s ved apart from the organic layer deposition apparatus by a predetermined distance, and deposition is performed while at least one of the substrate or the organic layer deposition apparatus is moved relative to the other in the first direction.