Display device and tiled display device comprising same

A display device is provided. The display device includes: a substrate including a display area having a light blocking area and a plurality of emission areas and a non-display area surrounding the display area; a thin film transistor layer disposed on the substrate and including a plurality of thin film transistors; a light emitting element layer disposed on the thin film transistor layer and including a plurality of light emitting elements; a wavelength conversion layer disposed on the light emitting element layer and converting a peak wavelength of light provided by at least some of the plurality of light emitting elements; and a color filter layer disposed on the wavelength conversion layer, in which the color filter layer includes: a plurality of color filters disposed in the plurality of emission regions, respectively; a first light blocking portion disposed in the light blocking region; and a second light blocking portion disposed in the non-display area. 提供了一种显示装置。该显示装置包括：基底，包括显示区域和非显示区域，显示区域具有光阻挡区域和多