A common solution is the touch screen collocation integrated tactile feedback module, and then use the interactive design system at the bottom, to improve the HMI performance, or through the simulation to reach close to the original entity key operation experience, although the integration of tactile feedback of mobile devices is limited, due to the cost of hardware may be increased, but with the tablet, intelligent mobile phone touch panel continues to increase, the gradual increase in the proportion of application of virtual keyboard, touch solutions will also make use of feedback demand increased gradually.