An electronic apparatus comprising: a housing ; a window ; a display panel disposed between the window and the housing , and comprising a first area and a second area which corresponds to peripheries on both sides of the first area ; and a cover panel disposed under the display panel , wherein the cover panel comprises an adhesive layer which is partially attached to the display panel and comprises a first periphery parallel to the peripheries on the both sides of the first area , a second periphery parallel to the peripheries on the both sides of the first area and parallel to the first periphery , a third periphery extending from one end of the first periphery to one end of the second periphery , and a fourth periphery extending from the other end of the first periphery to the other end of the second periphery , and a plurality of layers disposed under the adhesive layer , a surface of the adhesive layer partially attached to the second area comprises: a first partial attachment area which comprises a plurality of first protrusion portions attached to a part of the second area and a plurality of first grooves spaced apart from the part of the second area and defined between the plurality of first protrusion portions , and a full attachment area which is completely attached to another part of the second area , and the full attachment area is arranged to extend from the third periphery to the fourth periphery , and is configured to block water from being flowed into the first area from an outside along a path formed by an arrangement of the plurality of first protrusion portions and the plurality of first grooves . a housing ; a window ; a display panel disposed between the window and the housing , and comprising a first area and a second area which corresponds to peripheries on both sides of the first area ; and a cover panel disposed under the display panel , wherein the cover panel comprises an adhesive layer which is partially attached to the display panel and comprises a first periphery parallel to the peripheries on the both sides of the first area , a second periphery parallel to the peripheries on the both sides of the first area and parallel to the first periphery , a third periphery extending from one end of the first periphery to one end of the second periphery , and a fourth periphery extending from the other end of the first periphery to the other end of the second periphery , and a plurality of layers disposed under the adhesive layer , a surface of the adhesive layer partially attached to the second area comprises: a first partial attachment area which comprises a plurality of first protrusion portions attached to a part of the second area and a plurality of first grooves spaced apart from the part of the second area and defined between the plurality of first protrusion portions , and a full attachment area which is completely attached to another part of the second area , and the full attachment area is arranged to extend from the third periphery to the fourth periphery , and is configured to block water from being flowed into the first area from an outside along a path formed by an arrangement of the plurality of first protrusion portions and the plurality of first grooves . a first partial attachment area which comprises a plurality of first protrusion portions attached to a part of the second area and a plurality of first grooves spaced apart from the part of the second area and defined between the plurality of first protrusion portions , and a full attachment area which is completely attached to another part of the second area , and the full attachment area is arranged to extend from the third periphery to the fourth periphery , and is configured to block water from being flowed into the first area from an outside along a path formed by an arrangement of the plurality of first protrusion portions and the plurality of first grooves . <EOS>