APPARATUS COMPRISING OPTICALLY TRANSPARENT SHEET AND RELATED METHODS Russian patent published in 2014 - IPC G06F3/01 G06F3/48 

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to means of providing haptic feedback for touch screen display users. An electro-vibration apparatus for providing haptic feedback to a user comprises an optically transparent sheet having an electroconductive layer, an electrode element and electro-vibration circuitry configured to provide a variable voltage signal across the electroconductive layer and the electrode element so as to cause a user to experience electro-vibration in a first body part of the user when the first body part is moved across the exterior surface of the optically transparent sheet while a second body part of the user is in contact with the electrode element.

EFFECT: providing haptic feedback to a user through an electro-vibration apparatus, which is transparent and enables to view through it images displayed on a display panel, as well as simple design and low power consumption owing to the absence of moving parts.

20 cl, 8 d