Hello, I need to know can the PiezoHapt provde haptic feedbcack wherever the uses touches or does it vibrate the whole plate. Thank you

Hello moalmasri1205, Welcome to the forum.

The PiezoHapt products like 445-181629-ND and 445-175258-ND can provide haptic feedback when you touch it. This product can also be used to vibrate a whole plate.
These product have a faster Response time.
I was able to find this TDK PiezoHapt Actuator Tech note that really does explain how it can be used. It talks about both options.
A lot will depend on your application for it.

I do hope this will help you out.
If you have any questions on it Please let us know.