A portable communication device comprising: at least one hinge structure; a first housing connected to one side of the hinge structure so as to be foldable; a second housing connected to an opposite side of the hinge structure so as to be foldable; a display, at least portion of which is accommodated in the first housing and the second housing, the display including a display area and comprising a display panel and a front plate; a first support member disposed under a rear surface of the display and configured to support at least portion of the display; and a sensing module disposed under a rear surface of the first support member, the sensing module including a light receiving sensor, wherein the display area includes a first display area configured to remain flat while the first housing and the second housing are folded or unfolded and a second display area configured to be folded or unfolded to correspond to the folding or unfolding of the first housing and the second housing, characterized in that the first support member includes a first area corresponding to the first display area and having a first opening formed therein and a second area corresponding to the second display area, wherein the portable communication device comprises a second support member configured to support the first support member and having a second opening formed in the second support member and at least partially being aligned with the first opening, wherein the portable communication device comprises a transparent member disposed between the display panel and the sensor module, wherein a light receiving sensor of the sensing module is at least partially aligned with the first opening and configured to sense light passing through one area of the display panel and the first opening, and wherein at least a portion of the second support member is disposed under the transparent member. at least one hinge structure; a first housing connected to one side of the hinge structure so as to be foldable; a second housing connected to an opposite side of the hinge structure so as to be foldable; a display, at least portion of which is accommodated in the first housing and the second housing, the display including a display area and comprising a display panel and a front plate; a first support member disposed under a rear surface of the display and configured to support at least portion of the display; and a sensing module disposed under a rear surface of the first support member, the sensing module including a light receiving sensor, wherein the display area includes a first display area configured to remain flat while the first housing and the second housing are folded or unfolded and a second display area configured to be folded or unfolded to correspond to the folding or unfolding of the first housing and the second housing, characterized in that the first support member includes a first area corresponding to the first display area and having a first opening formed therein and a second area corresponding to the second display area, wherein the portable communication device comprises a second support member configured to support the first support member and having a second opening formed in the second support member and at least partially being aligned with the first opening, wherein the portable communication device comprises a transparent member disposed between the display panel and the sensor module, wherein a light receiving sensor of the sensing module is at least partially aligned with the first opening and configured to sense light passing through one area of the display panel and the first opening, and wherein at least a portion of the second support member is disposed under the transparent member.