DYNAMIC TACTILE INTERFACE

A dynamic tactile interface includes a tactile layer including a peripheral region and a deformable region adjacent the peripheral region, the deformable region operable between an expanded setting and a retracted setting; a substrate coupled to the peripheral region and defining a fluid conduit and a fluid channel fluidly coupled to the fluid conduit, the fluid conduit adjacent the deformable region; and a spring element coupled to the substrate between the tactile layer and the substrate, arranged substantially over the fluid conduit, and operable in a first distended position and a second distended position, the spring element at a local minimum of potential energy in the expanded setting and in the first distended position and at a second potential energy greater than the local minimum of potential energy between the first distended position and the second distended position, the spring element defining a nonlinear displacement response to an input displacing the deformable region in the expanded setting toward the substrate.