Electronic device including flexible display

An electronic device, comprising:

• a housing structure including a first housing and a second housing configured to be folded or unfolded with respect to a folding axis;
• a hinge structure disposed between the first housing and the second housing and configured to connect the first housing and the second housing such that the first housing and the second housing are rotatable relative to each other;
• a display panel extending from at least part of the first housing to at least part of the second housing across the hinge structure, the display panel including a folding area deformable to be flat or curved;
• a support plate disposed on a rear surface of the display panel to support the display panel, the support plate including a first support plate and a second support plate on either side of the folding axis;
• and
• a guide member disposed to face at least part of the folding area with the support plate between the guide member and the folding area, the guide member including a recess,
• wherein each of the first support plate and the second support plate includes an attachment area attached to at least part of the display panel and an extending area extending from the attachment area to partially face part of the folding area,
• wherein the extending area is configured so as not to be attached to the display panel, and the extending area includes a bending portion at least partially configured to be deformable and a non-deformable portion aligned with the bending portion in a direction of the folding axis, and
• wherein the at least part of the bending portion is configured to be deformed by the guide member as the first housing and the second housing are folded toward each other.