An electronic device is disclosed, including a first plate including a planar area oriented in a first direction, and a curved area extending from at least a portion of an edge of the planar area, a second plate oriented in a second direction opposite the first direction, the first plate and second plate defining an inner space, a support member disposed between the first plate and the second plate so as to surround the inner space, and a first adhesive member disposed between the curved area of the first plate and the support member, wherein the first adhesive member includes: a first adhesive layer attached to at least a portion of the curved area of the first plate, and is activated by heat, and a second adhesive layer attached to at least a portion of the support member.