Present information through afterimage with eyes closed
Kozue Nojiri, Suzanne Low, Koki Toda, Yuta Sugiura, Youichi Kamiyama, and Masahiko Inami


We propose a display method using the afterimage effect to illustrate images, so that people can perceive the images with their eyes closed. Afterimage effect is an everyday phenomenon that we often experienced and it is commonly utilized in many practical situations such as in movie creation. However, many of us are not aware of it. We strongly believe that this afterimage effect is an interesting phenomenon to display information to the users. We conducted an experiment to compare the duration of the afterimage effect to the duration of participant exposure to the image projection. We also prototyped a wearable type display to give more flexibility and mobility to our proposal. With this, one can utilize this method for various applications such as to confirm password at a bank etc.