VIBRATION GENERATING UNIT, A MIXED TYPE ACTUATOR USING AN ELECTROMAGNETIC FORCE GENERATING UNIT, A VACUUM HAPTIC PROVIDING DEVICE, AND A DISPLAY DEVICE AND A CONTROL METHOD USING THE SAME, CAPABLE OF ADDING A VIBRATION GENERATING UNIT TO AN ELECTROMAGNETIC FORCE GENERATING UNIT

摘要

PURPOSE: A vibration generating unit, a mixed type actuator using an electromagnetic force generating unit, a vacuum haptic providing device, and a display device and a control method using the same are provided to install a double vibration generating source by an electromagnetic force generating unit and a vibration generating unit, thereby increasing a vibration force.;CONSTITUTION: A vibration generating unit(10) generates vibration according to strength of applied power. A lower plate(20) is placed in a lower part of the vibration generating unit and has elasticity. An electromagnetic force generating unit(30) is placed between the vibration generating unit and the lower plate and vibrates the lower plate through a magnetic force generated by electromagnetic induction. A fixing unit(40) fixes one end of the vibration generating unit and one end of the lower plate. The vibration generating unit includes an elastic upper plate and a piezoelectric member.;COPYRIGHT KIPO 2011