Patent ID: 8866774

Claim:
Apparatus comprising: a) a touch screen having a top surface, wherein a vertical height direction is perpendicular to the top surface of the touch screen, and wherein lateral directions are parallel to the top surface of the touch screen; b) an overlay structure disposed on the top surface of the touch screen, wherein the overlay structure is capable of being actuated between a first state and a second state by a mechanical force applied in one or more lateral directions to one or more lateral edges of the overlay structure; and c) an actuator capable of actuating the overlay structure to be in the first state or in the second state; wherein the first state of the overlay structure is a configuration wherein the overlay structure has a substantially uniform top surface; wherein the second state of the overlay structure is a configuration wherein the top surface of the overlay structure has increased z-height, relative to other parts of the overlay structure, at one or more predetermined lateral positions; and wherein the touch screen is responsive to touch provided to the overlay structure at the one or more predetermined lateral positions when the overlay structure is in the second state.