Abstract: A mobile terminal can include a case, a touch screen, a haptic module to generate vibration, a memory storing data, and a power supply unit. The haptic module may be a linear vibration motor including a housing, a coil, a moving portion, first and second elastic members; the housing includes an inner space defined by top and bottom surfaces, and first to fourth side surfaces; the coil, moving portion, and first and second elastic members are in the housing; the first and third side surfaces are spaced apart from the moving portion; the moving portion includes a magnet, first and second insertion grooves; the first and second elastic members are coil springs, the first and second elastic members are between the moving portion and the first third side surfaces, respectively; and one end of each coil spring is located at the first and second insertion grooves of the moving portion.

Abstract: A vibration motor includes a housing, a coil, a moving portion, an elastic member and a roller member. The housing has a top surface, a bottom surface, and first to fourth side surfaces joining the top surface to the bottom surface, the first to fourth surfaces defining an inner circumferential surface of the housing. The coil is provided in the housing. The moving portion provided in the housing and the moving portion is configured to reciprocate between the first and third sides arranged opposite to each other. The elastic member is provided between the moving portion and the housing. The roller member is provided in the housing and arranged to come into rolling contact with the top or bottom surface of the housing.

Abstract: A mobile terminal can include a case, a touch screen, a haptic module to generate vibration, a memory storing data, and a power supply unit. The haptic module may be a linear vibration motor including a housing, a coil, a moving portion, first and second elastic members; the housing includes an inner space defined by top and bottom surfaces, and first to fourth side surfaces; the coil, moving portion, and first and second elastic members are in the housing; the first and third side surfaces are spaced apart from the moving portion; the moving portion includes a magnet, first and second insertion grooves; the first and second elastic members are coil springs, the first and second elastic members are between the moving portion and the first third side surfaces, respectively; and one end of each coil spring is located at the first and second insertion grooves of the moving portion.