Contactless 2.5 dimensional touch screen with tactile feedback

Abstract

Summary form only given, as follows. In this demonstration, we show contactless touch screen that enables interaction near the screen surface with tactile feedback. By combining aerial tactile stimulation with gestures in front of the screen, users can push realistic virtual buttons and input hand writing characters with variable brush strike strength. The components of this system are a special screen (Visuo-Acoustic Screen), a visual projector, an airborne ultrasound phased array for giving noncontact tactile and an IR sensor for the detection of finger movement. This system also enables blind touch interaction for both visually impaired people and healthy people.