An electronic device may include a plurality of housings including a first housing and a second housing, wherein the first housing movably connects to the second housing in a moving direction, a display panel in which a screen display area visually exposed to an outside changes depending on a movement of the second housing relative to the first housing, and a lattice plate disposed on a rear surface of the display panel to support the display panel. The display panel may include a flat portion forming the screen display area and comprising a surface substantially forming a flat surface, an edge portion connected to one end portion of the flat portion and comprising at least a partial region which is curved, and a bending portion connected to the other end portion of the flat portion opposite to the edge portion and comprising at least a partial region which bends according to a movement of the first housing relative to the second housing. The lattice plate may include a first lattice portion disposed on a rear surface of the edge portion and including a first lattice pattern, and a second lattice portion disposed on a rear surface of the bending portion and including a second lattice pattern that is different from the first lattice pattern so as to have a relatively higher modulus than the first lattice portion.