User Study of the Hybrid Tactile Display with Electrical Stimuli and Electrostatic Forces

Humans can perceive tactile sensation through multimodal stimuli. To demonstrate realistic pseudo tactile sensation for the users, a tactile display is needed that can provide multiple tactile stimuli. We have explicated a novel printed tactile display that can provide both the electrical stimulus and the electrostatic force. We also described the fabrication technique using double-sided conductive ink printing. In this paper, we investigate how human feel tactile sensations to describe the characteristic of proposed hybrid tactile display. The obtained experimental results indicate that the proposed tactile display is capable of exhibiting realistic tactile sensation and can be incorporated by various applications such as tactile sensation printing of pictorial illustrations and paintings. 1 明治大学 Meiji University, Nakano, Tokyo, Japan 2 日本学術振興会 JSPS, Chiyoda, Tokyo, Japan 3 香川大学 Kagawa University, Takamatsu, Kagawa, Japan 4 電気通信大学 The University of Electro-Communications, Chofu, Tokyo, Japan a) kkunihir@meiji.ac.jp b) hi1124@eng.kagawa-u.ac.jp c) kajimoto@kaji-lab.jp d) homei@homei.com 1. はじめに 人体の皮膚内部には 4種類の受容器と呼ばれる触覚を知 覚するための細胞が存在している.それぞれの受容器は異 なる刺激に反応し,その刺激の組み合わせによって人間は 触覚を認識している [11].そのため,物体を触れた際の触 感の再現など高度な触覚提示を行うためには,異なる刺激 を提示可能な複数の触覚ディスプレイを組み合わせて使う ことが有効である. 近年,皮膚上に外部から複数の刺激を与えることで受容 器を活性化させ,よりリアルな触覚を提示するための複合