Rotating device and display device

The invention discloses a rotating device and a display device. The rotating device comprises a first fixing piece, a second fixing piece and a rotating body. The first fixing piece is rotationally connected to the first end of the rotating body and used for fixing and driving the first screen to rotate relative to the second screen; the second fixing piece is rotationally and slidably connected to the second end of the rotating main body and is used for fixing the second screen and moving in/out of the rotating main body in the rotating process; the first fixing piece drives the first screen to be folded on the second screen when the rotating body is moved out of the second fixing piece, and drives the first screen to be spliced on the second screen when the rotating body is moved into the second fixing piece so as to form a single screen. Therefore, in the process of forming the first screen and the second screen into the single screen by the rotating device, the distance between the first screen and the se