Provided are a display device and a method for controlling the same. The display device includes a flexible display screen and a control structure configured to control the flexible display screen to assume a folded state or an unfolded state. The control structure includes a guide rail assembly including guide rails. Two adjacent guide rails of the guide rails are slidably connected to each other, and the flexible display screen is unfolded along a first direction and folded along a second direction. A sliding direction of each of the guide rails is the same as the first direction or the second direction.