P‐70: Student Poster: Force Variation During Tactile Exploration Provides Crucial Information in Virtual Tactile Experience

Abstract

Haptic is one of the most important and extensive ways for human to recognize physical world, by which we can perceive the shape, surface texture and vibration information of the things. With the development of Internet of Things technology, screen has become one of the most important windows for us to obtain information and interact with the outside word. Display integrated haptic feedback technology has become one of the main directions for future development. BOE�s virtual tactile technique makes people feel virtual edge on display, which is the state‐of‐the‐art. The reason why people can feel the texture of the surface when finger slide over surface of things is that the rapid variation of friction and contact force between the finger and surface. In this paper, a dynamic model of finger slide over the edge of object is constructed and the dynamic response, including the variation of contact area, contact and friction force between finger and object surface, of finger sliding over the object edge is investigated by numerical simulation. Finally, the numerical results is encoded into voltage signal and the haptic feedback of virtual edge is reproduced experimentally. The result shows that the friction and contact force provide crucial information to enhance virtual tactile experience and the dynamic model constructed in this paper can simulate the sensation of virtual edge, which can provide support for further research on tactile feedback of texture.