Abstract: An haptic actuator includes: a base member; a hollow cylindrical coil arranged in the upper portion of the base member; a core formed in the base member and arranged so as to be inserted into the center of the coil; a cover member covering the upper portion of the base member; a vibration plate mounted on the cover member, arranged in the upper portion of the core, and moving in the vertical direction; and a vibration unit coupled to the vibration plate and spaced apart from the upper portion of the core. The vibration plate has a mounting portion fixedly mounted on the central area of the cover member and a coupling portion formed so as to extend from the mounting portion and be bent in the downward direction. The vibration unit has a permanent magnet coupled to the coupling portion and spaced apart from the core.

Abstract: An haptic actuator includes: a base member; a hollow cylindrical coil arranged in the upper portion of the base member; a core formed in the base member and arranged so as to be inserted into the center of the coil; a cover member covering the upper portion of the base member; a vibration plate mounted on the cover member, arranged in the upper portion of the core, and moving in the vertical direction; and a vibration unit coupled to the vibration plate and spaced apart from the upper portion of the core. The vibration plate has a mounting portion fixedly mounted on the central area of the cover member and a coupling portion formed so as to extend from the mounting portion and be bent in the downward direction. The vibration unit has a permanent magnet coupled to the coupling portion and spaced apart from the core.

Abstract: Disclosed is a hinge mechanism of portable phone having an advanced configuration, which can perform the opening operation and the rotating operation of a phone cover. The hinge mechanism comprises a housing to connect a phone body and a phone cover, which has a rotary chamber and a hinge chamber, a hinge part to open and to close he phone cover, which is disposed in the hinge chamber, and a rotary part to rotate the phone cover, which is disposed in the rotary chamber. A user can play a game or watch a motion picture using the portable phone while looking at the liquid crystal display of the phone cover, because the phone cover can be rotated.

Abstract: Disclosed is a hinge mechanism of portable phone having an advanced configuration, which can perform the opening operation and the rotating operation of a phone cover. The hinge mechanism comprises a housing to connect a phone body and a phone cover, which has a rotary chamber and a hinge chamber, a hinge part to open and to close he phone cover, which is disposed in the hinge chamber, and a rotary part to rotate the phone cover, which is disposed in the rotary chamber. A user can play a game or watch a motion picture using the portable phone while looking at the liquid crystal display of the phone cover, because the phone cover can be rotated.