An electronic device comprising: a window (430, 513, 523, 621, 721, 741) forming at least part of a front surface of the electronic device, the window including a flat portion (4301, 7211, 7411) and a bent portion (4302, 7212, 7412), the bent portion including a through hole (4304, 6204); a housing (310, 410, 511, 521, 610, 710) 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 (310, 410, 511, 521, 610, 710) is formed by a double injection molding process using a non-conductive member and a conductive member and includes a closed accommodation space (5111, 6102) formed to extend in a position corresponding to the bent portion; a display module (420, 512, 522, 622, 722, 742, 800) mounted on the housing and comprising a flat portion (4201, 7221, 7421, 810) substantially corresponding to the first face of the housing and visible via the flat portion of the window and a bent portion (4202, 7222, 7422, 820) of the display module visible via the bent portion of the window, the bent portion of the display module including an opening (4204, 8201, 8202) aligned with the through hole; an input unit (320, 460, 517, 640, 821, 822) disposed in the accommodation space (5111, 6102), the input unit (320, 460, 517, 640, 821, 822) penetrating through a through hole formed in the accommodation space (5111, 6102) and the opening (4204, 8201, 8202); and a circuit inside the housing configured to generate a signal when a key button (462, 517, 1020) forming part of the input unit is pressed, wherein an interval between unit signal lines in a plurality of first signal lines 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 disposed in the bent portion, wherein a boundary region between an inner space of the housing (310, 410, 511, 521, 610, 710) and the accommodation space (5111, 6102) 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 (320, 460, 517, 640, 821, 822) is electrically connected to the conductive connection region in the accommodation space (5111, 6102) of the housing (310, 410, 511, 521, 610, 710). a window (430, 513, 523, 621, 721, 741) forming at least part of a front surface of the electronic device, the window including a flat portion (4301, 7211, 7411) and a bent portion (4302, 7212, 7412), the bent portion including a through hole (4304, 6204); a housing (310, 410, 511, 521, 610, 710) 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 (310, 410, 511, 521, 610, 710) is formed by a double injection molding process using a non-conductive member and a conductive member and includes a closed accommodation space (5111, 6102) formed to extend in a position corresponding to the bent portion; a display module (420, 512, 522, 622, 722, 742, 800) mounted on the housing and comprising a flat portion (4201, 7221, 7421, 810) substantially corresponding to the first face of the housing and visible via the flat portion of the window and a bent portion (4202, 7222, 7422, 820) of the display module visible via the bent portion of the window, the bent portion of the display module including an opening (4204, 8201, 8202) aligned with the through hole; an input unit (320, 460, 517, 640, 821, 822) disposed in the accommodation space (5111, 6102), the input unit (320, 460, 517, 640, 821, 822) penetrating through a through hole formed in the accommodation space (5111, 6102) and the opening (4204, 8201, 8202); and a circuit inside the housing configured to generate a signal when a key button (462, 517, 1020) forming part of the input unit is pressed, wherein an interval between unit signal lines in a plurality of first signal lines 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 disposed in the bent portion, wherein a boundary region between an inner space of the housing (310, 410, 511, 521, 610, 710) and the accommodation space (5111, 6102) 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 (320, 460, 517, 640, 821, 822) is electrically connected to the conductive connection region in the accommodation space (5111, 6102) of the housing (310, 410, 511, 521, 610, 710).