Display device, tiled display device, and manufacturing method for display device

A display device comprising:

• a base layer including a first base layer and a second base layer disposed on a rear surface of the first base layer;
• light emitting elements disposed on a surface of the first base layer;
• and
• pads including a first pad and a second pad, which are disposed on the rear surface of the first base layer and are spaced apart from each other, wherein
• the base layer further includes blocking layers which are disposed between the first base layer and the second base layer,
• at least portions of the blocking layers do not overlap the pads in a plan view
• the blocking layers include a first blocking layer and a second blocking layer, which are disposed in different layers,
• wherein the second blocking layer is disposed between adjacent ones of the pads, and
• wherein the second blocking layer includes a plurality of patterns spaced apart from each other between the adjacent ones of the pads.