Palm-sized Attraction Force Display Exploiting the Nonlinearity of Perception

In this paper, we discuss a novel force perception method for mobile and wearable displays. The method exploits the nonlinearity of human perception to generate a force sensation. In our method, brief intense pulses of acceleration alternate with longer periods of low- amplitude recovery. This asymmetric acceleration generates a unidirectional force sensation using a crank- slider mechanism that physically generates bi-directional force. We designed a palm-sized prototype and verified the feasibility of the proposed method through experiments.