Systems and methods for haptic feedback using laterally driven piezoelectric actuators
First Claim
Patent Images
1. An apparatus comprising:
- a display;
a touch-sensitive interface positioned above the display and comprising an interface surface, the touch-sensitive interface configured to move with respect to the display in a plane lateral to the interface surface; and
a piezoelectric actuator positioned above the display and underneath the touch-sensitive interface, the piezoelectric actuator comprising a first portion mounted to the display and a second portion mounted to the touch-sensitive interface, the piezoelectric actuator configured to receive a haptic signal and output a force in the plane lateral to the interface surface by bending into a curved shape, the force configured to move the touch-sensitive interface between at least two positions in the plane lateral to the interface surface to generate a haptic effect.
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Abstract
Systems and methods for haptic feedback using laterally driven piezoelectric actuators are disclosed. For example, one described apparatus for haptic feedback using laterally driven piezoelectric actuators includes: a base; a touch-sensitive interface comprising an interface surface, the touch-sensitive interface affixed to the base and configured to move in a direction lateral to the interface surface; and a piezoelectric actuator mounted to the base and to the touch-sensitive interface and configured to receive a haptic signal and output a force in a direction lateral to the interface surface.
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Citations
20 Claims
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1. An apparatus comprising:
- a display;
a touch-sensitive interface positioned above the display and comprising an interface surface, the touch-sensitive interface configured to move with respect to the display in a plane lateral to the interface surface; and a piezoelectric actuator positioned above the display and underneath the touch-sensitive interface, the piezoelectric actuator comprising a first portion mounted to the display and a second portion mounted to the touch-sensitive interface, the piezoelectric actuator configured to receive a haptic signal and output a force in the plane lateral to the interface surface by bending into a curved shape, the force configured to move the touch-sensitive interface between at least two positions in the plane lateral to the interface surface to generate a haptic effect. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16, 17, 18, 19)
- a display;
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10. A method comprising:
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receiving an input signal from a touch-sensitive interface positioned above a display, the touch-sensitive interface comprising an interface surface and configured to move with respect to the display in a plane lateral to the interface surface; determining a haptic effect based at least in part on the input signal; and
transmitting a haptic signal corresponding to the haptic effect to a piezoelectric actuator configured to output a force in the plane lateral to the interface surface by bending into a curved shape, the force configured to move the touch-sensitive interface between at least two positions in the plane lateral to the interface surface to generate the haptic effect, wherein the piezoelectric actuator is positioned above the display and underneath the touch-sensitive interface, and the piezoelectric actuator comprises a first portion mounted to the display and a second portion mounted to the touch-sensitive interface. - View Dependent Claims (11, 12, 13)
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14. A system comprising:
- a base;
a display mounted to the base and configured to receive a display signal and in response output an image on a display surface, the display configured to move with respect to the base in a plane lateral to the display surface; a touch-sensitive interface positioned above the display and configured to transmit sensor signals corresponding to an interaction with the touch-sensitive interface; a processor configured to receive the sensor signals, determine a haptic effect, and transmit a haptic signal corresponding to the determined haptic effect; and a piezoelectric actuator mounted underneath the display and above the base, the piezoelectric actuator configured to receive the haptic signal and output a force in the plane lateral to the display surface by bending into a curved shape, the force configured to generate the haptic effect by moving the display between at least two positions in the plane lateral to the display surface, wherein the piezoelectric actuator comprises a first portion mounted to the base by a first clamp and a second portion mounted to the display by a second clamp. - View Dependent Claims (15, 20)
- a base;
Specification