Hinge assembly and electronic device comprising same

An electronic device includes a display and a hinge assembly foldable with the display and corresponding to a folding area of the display. The hinge assembly includes a hinge bracket defining a first hinge axis and a second hinge axis; a first rotating body and a second rotating body connected to the hinge bracket and rotatable about a first hinge axis and a second hinge axis, respectively; the first sliding part and the second sliding part are connected to the hinge support, can slide in the direction parallel to the hinge axis corresponding to the hinge support and are spaced from each other in the direction; and an elastic member between the first slider and the second slider and providing an elastic force in the direction. The first rotating body and the second rotating body have spiral shapes which are arranged based on the first hinge axis and the second hinge axis respectively, comprise a first spiral structure and a second spiral structure, and are connected to the first sliding piece and the second s