An electronic device according to various embodiments disclosed herein may include: a first housing, a second housing rotatably connected to the first housing, a display panel, a partial area of which is configured to be deformed by rotation of the second housing with respect to the first housing, a support plate disposed on the rear surface of the display panel supporting the display panel, the support plate including a first area, corresponding to the deformable area of the display panel and including multiple openings formed at specified intervals, and a second area excluding the first area, a cushion layer disposed on the rear surface of the support plate at a position corresponding to the second area and including a material capable of absorbing external impact, a foreign material blocking member comprising a flexible material disposed on the rear surface of the support plate at a position corresponding to the first area and including a flexible material configured to be elongated according to deformation of the display panel, and a reinforcing plate disposed under the cushion layer and the foreign material blocking member.