Provided is a hinge. The hinge includes: a mounting base, two torsion shafts, a resilient structure, and two rotary arms; wherein the two torsion shafts and the resilient structure are mounted on the mounting base, the resilient structure is disposed between the two torsion shafts, and the two rotary arms are connected to the two torsion shafts respectively; a bump is disposed on a side wall of each of the two torsion shafts, wherein the bump is disposed on a side, close to the resilient structure, of the torsion shaft, and the bumps of the two torsion shafts are in contact with the resilient structure; and the resilient structure is configured to apply a force to the torsion shaft by the bumps, such that the two rotary arms have a tendency to rotate away from each other.