Research on Multimodal Image Display System with Electrovibration-Based Tactile Rendering

Compared with visual and auditory interactions, tactile can provide bidirectional information interaction be-tween the human operator and the environment, which can effectively enhance the quality of human-computer interaction. This paper designed a multi-modal image display system com-bining visual and tactile, where the tactile between the finger and the touchscreen is rendered by adjusting the electrostatic friction. A time-division multiplexing method has been pro-posed for realizing the electrovibration and the finger position tracking with a touchscreen so that it requires no external tracking device. The friction perception threshold experiment and a basic image recognition experiment have been carried out. An average success rate of 93.6% of perception verifies the effectiveness of the proposed system.