A display device including a display module including a first region and a second region, a first support layer disposed under the display module, overlapping the first region and having a plurality of openings, and a second support layer disposed under the display module, spaced apart from the first support layer and overlapping the second region, a base layer including a display region adjacent a non-display region, a circuit layer on the base layer, a light emitting element layer disposed on the circuit layer and including a light emitting element, and an anti-reflective layer disposed on the light emitting element layer including an organic pattern and an overcoat layer covering the organic pattern. The circuit layer includes a dam structure disposed on the non-display region and a blocking member overlapping at least a portion of the dam structure on a plane and includes the same material as the organic pattern.