Patent ID: 8310452

Claim:
A touch panel display apparatus comprising: a display panel unit including a touch panel; movable support means for supporting said display panel unit so as to permit said display panel unit to be vibrated; an actuator configured to drive said display panel unit to vibrate; actuator drive control means for outputting an actuator drive signal to drive said actuator; superimposing means for superimposing an acoustic signal on said actuator drive signal; wherein said actuator vibrates said display panel unit laterally within a housing such that a tactile sensation is generated on a user's fingertip making contact with said panel surface of said display panel unit, and said actuator also simultaneously drives an acoustic pressure generating member to vibrate according to said acoustic signal, whereby a sound is generated, and the lateral motion of the actuator drives the acoustic pressure generating member to generate the sound which is reflected toward a user, and further wherein the superimposing means is comprised of a mixing circuit that combines a selected waveform and an acoustic signal.