Display device and manufacturing method thereof

A display device comprising:

• a display module including a first region, a second region, and a third region arranged in a first direction;
• a first support layer including hole groups, each of which includes a plurality of holes and which are spaced apart from each other in the first direction, and disposed under the display module to overlap the first region;
• a first adhesive layer disposed between the first region and the first support layer;
• a second support layer disposed under the display module to overlap the second region;
• a second adhesive layer disposed between the second region and the second support layer;
• and
• multi-bars, which are disposed under the first support layer and spaced apart from each other in the first direction and each of which extends in a second direction crossing the first direction,
• wherein the first adhesive layer includes at least one first resin layer, and second resin layers,
• wherein each of the second resin layers overlap a corresponding hole group among the hole groups and has a higher modulus than the first resin layer.