A includes a substrate including a display area in which a plurality of emission areas configured to emit light for displaying an image are arranged; a plurality of light emitting units located on the substrate and respectively corresponds to the plurality of emission areas; and a partition wall on the substrate, corresponding to a non-emission area which is a boundary between the plurality of emission areas, and having a variable width in at least one direction. The partition wall includes a plate corresponding to the non-emission area; and a pillar protruding from at least a portion of the plate to each of the plurality of emission areas and having a greater width than the plate.