Display device

A display device including: a lower substrate having a display area and a peripheral area; a plurality of lower electrodes disposed in the display area and on the lower substrate; a pixel defining layer covering a portion of each of the lower electrodes; a light emitting layer disposed on the lower electrodes and the pixel defining layer; an upper electrode disposed on the light emitting layer; a plurality of optical filters disposed on the upper electrode and spaced apart from each other; a lower light blocking layer disposed between the optical filters, and having a plurality of openings; an upper substrate disposed on the lower light blocking layer to oppose the lower substrate; and an alignment structure disposed in the peripheral area of the lower substrate and the upper substrate, and including a material identical to a material of the pixel defining layer and the lower light blocking layer.