A phone (if I base the story on Earth) or a datapad (If I base the story in the Star Wars galaxy) that allows the user to feel the texture and surface of things that appear on the screen. What would be a good technical term for this type of technology?
The simple term is Haptic Technology - https://en.wikipedia.org/wiki/Haptic_technology
We're not very far down that road and you could probably spice it up, since it currently implies some kind of mechanical component generating the feedback, and the technology taken to its extreme would require something far more sophisticated, but there you go.
I also hear the term "Tactile" used to describe this technology.