Lateral turning device, vehicle-mounted screen and vehicle

The utility model provides a side turning device, a vehicle-mounted screen and a vehicle. The side rotating device comprises a first plate, a second plate, a driving mechanism and a limiting connecting rod. The first plate and the second plate are oppositely arranged, and the second plate is used for being connected to a screen. The driving mechanism is arranged between the first plate and the second plate and used for driving the second plate to move away from or close to the first plate. At least two limiting connecting rods are arranged, the first ends of the limiting connecting rods are rotatably connected with the first plate, the second ends of the limiting connecting rods are rotatably connected with the second plate, and the length of the limiting connecting rods close to the driving mechanism is larger than that of the limiting connecting rods away from the driving mechanism. The limiting connecting rod, the first plate and the second plate form a four-connecting-rod mechanism, so that the movement t