Operating principle for control of deformation using magnetic field from the nanodots penetrating through the magnetostrictive layer. Also shown is the 3D integrated structure of the tactile display and its possible applications.

In an attempt to create better user interfaces with more versatile capabilities, this research direction will investigate the development of haptic interfaces in the form of tactile displays with potential for ultrafast control of mechanical deformation used to replicate any 3D topography pattern for a realistic tactile experience. Through the integration of picosecond electrically-reversible magnetic nanodots, the local magnetic field in thin magneto-elastic layers can be controlled such that the structure deforms on demand. This research work will disrupt the field of tactile technology, including, among other applications, touch screens, to allow instantly-reconfigurable 3D buttons and textures on visual displays.