Device for Producing Haptic Feedback
AssigneeEpcos AG
InventorsFranz Rinner, Harald Kastl
Life of this patent
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Abstract
In an embodiment a device includes at least one piezoelectric actuator including a plurality of piezoelectric layers and a first reinforcing element and a second reinforcing element, wherein the piezoelectric actuator is arranged between the reinforcing elements, wherein the piezoelectric actuator is configured to alter its expansion in a first direction when an electrical voltage is applied, and wherein the reinforcing elements are configured to deform on account of a change in an expansion of the piezoelectric actuator such that a central region of the respective reinforcing element is moved relative to the piezoelectric actuator in a second direction, the second direction being perpendicular to the first direction.
Claims22
1-16. (canceled)
A device comprising:
- at least one piezoelectric actuator comprising a plurality of piezoelectric layers;
- and
- a first reinforcing element and a second reinforcing element,
- wherein the piezoelectric actuator is arranged between the reinforcing elements,
- wherein the piezoelectric actuator is configured to alter its expansion in a first direction when an electrical voltage is applied, and
- wherein the reinforcing elements are configured to deform on account of a change in the expansion of the piezoelectric actuator such that a central region of the respective reinforcing element is moved relative to the piezoelectric actuator in a second direction, the second direction being perpendicular to the first direction.
A method comprising:
- providing haptic feedback in a touch-sensitive screen by using the device according to claim 1.
An assembly comprising a screen with a screen surface and a device for producing haptic feedback, the assembly comprising:
- at least one piezoelectric actuator comprising a plurality of piezoelectric layers;
- and
- a first reinforcing element and a second reinforcing element,
- wherein the piezoelectric actuator is arranged between the reinforcing elements,
- wherein the piezoelectric actuator is configured to alter its expansion in a first direction when an electrical voltage is applied,
- wherein the reinforcing elements are configured to deform on account of a change in the expansion of the piezoelectric actuator such that a central region of the respective reinforcing element is moved relative to the piezoelectric actuator in a second direction, the second direction being perpendicular to the first direction, and
- wherein the device is configured to bring about an offset of the screen parallel to the screen surface.
Dependencies are inferred from the claim text.