US Patent 9965116 Tactile overlay for touchscreen device

A system for facilitating engagement with a touch screen by a visually impaired person comprises an overlay. The overlay includes a bottom surface having a capacitive component and an overlay locating element. The overlay locating element is configured to interface with a touch screen underlying the overlay to provide a position of the overlay relative to the touch screen. A top surface of the overlay includes a tactile button that is located opposite of the capacitive component. The tactile button and the capacitive component are above the region of a displayed soft button. Engagement of the tactile button by the visually impaired person results in the capacitive component interacting with the touch screen in the region of the displayed soft button to provide a capacitive input detectable by the touch screen.