| 摘要 |
<p>PURPOSE: A haptic feedback device is provided to easily change a vibration frequency into a predetermined frequency band when a vibration member or a mass member, which is deviated from an allowable error range, is used. CONSTITUTION: A piezoelectric device(20) is contracted or extended corresponding to the polarity of applied voltage. A vibration member(10) generates displacement by combination with the piezoelectric device. Mass members(40,50) combine with the vibration member. A case accommodates the vibration member and the mass members. A first buffer member is formed in the upper side of the case or a mass member and prevents collision between the mass member and the case. The vibration member includes a first board, which is extended in a first direction, and a pair of second boards which is bent in a second direction which is perpendicular to the first direction.</p> |
