Patent ID: 8492938

Claim:
A linear vibration device, comprising: a stator including magnets, a bracket, and a case having an inner space formed therein and coupled with the bracket; and a vibrator including coils facing the magnets, a weight body coupled with the coil, an FPC coupled with a top portion of the weight body, and an elastic member of which the one end is coupled with the case and the other end is coupled with the coil, the vibrator being accommodated in the case, wherein the magnets include a first magnet coupled with a bottom surface of the case, disposed between the coils of the vibrator, including a plate mounted on a top portion thereof, and including a magnetic fluid applied to a top portion and a side portion of the plate and a second magnet facing the first magnet, coupled with a top surface of the bracket, and including a magnetic fluid applied to a bottom portion and a side portion thereof.