A display device and/or an electronic device including the same, according to various embodiments of the present invention, may comprise: a window member; an optical adhesive layer applied on an inner surface of the window member; a display panel bonded on the inner surface of the window member with the optical adhesive layer interposed therebetween; a bonding region which is disposed at at least one edge of the display panel such that a portion of the display panel extends beyond the optical adhesive layer to directly face the window member; a first space, formed between the window member and the bonding region, at least corresponding to the thickness of the optical adhesive layer; and a sealing member at least partially filled in the first space. The electronic device as above may vary according to embodiments.