An electronic device comprising: a window forming at least part of a front surface of the electronic device, the window including a flat portion and a bent portion , the bent portion including a through hole ; a housing including a first face, a second face facing away from the first face, and a side face surrounding a space between the first face and the second face, wherein the housing is formed by a double injection molding process using a non-conductive member and a conductive member and includes a closed accommodation space formed to extend in a position corresponding to the bent portion; a display module mounted on the housing and comprising a flat portion substantially corresponding to the first face of the housing and visible via the flat portion of the window and a bent portion of the display module visible via the bent portion of the window, the bent portion of the display module including an opening aligned with the through hole; an input unit disposed in the accommodation space , the input unit penetrating through a through hole formed in the accommodation space and the opening ; and a circuit inside the housing configured to generate a signal when a key button forming part of the input unit is pressed, wherein an interval between unit signal lines in a plurality of first signal lines (S1) arranged on the flat portion of the display module is different from an interval between unit signal lines in a plurality of second signal lines (S2) disposed in the bent portion, wherein a boundary region between an inner space of the housing and the accommodation space includes a conductive connection region formed to be insulated from the conductive member around the conductive connection region by the non-conductive member , and wherein the input unit is electrically connected to the conductive connection region in the accommodation space of the housing . a window forming at least part of a front surface of the electronic device, the window including a flat portion and a bent portion , the bent portion including a through hole ; a housing including a first face, a second face facing away from the first face, and a side face surrounding a space between the first face and the second face, wherein the housing is formed by a double injection molding process using a non-conductive member and a conductive member and includes a closed accommodation space formed to extend in a position corresponding to the bent portion; a display module mounted on the housing and comprising a flat portion substantially corresponding to the first face of the housing and visible via the flat portion of the window and a bent portion of the display module visible via the bent portion of the window, the bent portion of the display module including an opening aligned with the through hole; an input unit disposed in the accommodation space , the input unit penetrating through a through hole formed in the accommodation space and the opening ; and a circuit inside the housing configured to generate a signal when a key button forming part of the input unit is pressed, wherein an interval between unit signal lines in a plurality of first signal lines (S1) arranged on the flat portion of the display module is different from an interval between unit signal lines in a plurality of second signal lines (S2) disposed in the bent portion, wherein a boundary region between an inner space of the housing and the accommodation space includes a conductive connection region formed to be insulated from the conductive member around the conductive connection region by the non-conductive member , and wherein the input unit is electrically connected to the conductive connection region in the accommodation space of the housing . <EOS>