| 摘要 |
A touch-screen device includes a display; a tactile feedback actuator arranged on the display, including a first substrate, a second substrate facing the first substrate, the first substrate and the second substrate being parallel to each other in a lateral direction, and movable relative to each other in the lateral direction; and an electrode arrangement on the first substrate and the second substrate, whereby a potential difference applied across two or more electrodes in the electrode arrangement produces an electrostatic force in the lateral direction between the first substrate and the second substrate; and a controller configured to apply a time-varying potential difference across the two or more electrodes such that the resultant electrostatic force varies in the lateral direction and induces oscillatory lateral movement of the first substrate relative to the second substrate. |
