A screen component includes a screen body and at least one vibration assembly. The vibration assembly includes a movable member made from a giant magnetostrictive material and at least one coil surrounding the movable member, and the movable member is partially attached to the screen body. The at least one coil forms a magnetic field when the coil is supplied with an input current. The movable member deforms under the effect of the magnetic field. The magnetic field changes according to a change in parameter of the input current. A deformation amount of the movable member changes according to the change in magnetic field of the coil to drive the screen body to vibrate to output corresponding sound information by the screen component.