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US 2019/0094968 A1Published application
Electronic Device Having a Piezoelectric Body for Friction Haptics
AssigneeApple Inc.
InventorsXiaonan Wen, James E. Pedder
Life of this patent
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Abstract
An electronic device is disclosed which includes a conductive layer for providing haptic feedback at an input surface of the electronic device. The conductive layer includes conductive particles within an organic compound, such as an epoxy. When the conductive layer is activated it may provide frictional or other tactile feedback at the input surface.
Claims21
-5. (canceled)
An electronic device, comprising:
- a housing;
- and
- a cover assembly coupled to the housing and comprising:
- a cover layer;
- a piezoelectric body below the cover layer and defining an upper surface and a lower surface;
- a first electrode group disposed on the upper surface;
- and
- a second electrode group disposed on the lower surface and comprising:
- a touch sense electrode coupled to a capacitive touch sensor;
- and
- a haptic drive electrode configured to apply a voltage across the piezoelectric body to generate haptic feedback through the cover assembly.
8 more elements
An electronic device, comprising:
- a transparent cover;
- a display below the transparent cover;
- a user input sensor positioned below the transparent cover and above the display;
- a stiffener layer below the user input sensor;
- a piezoelectric body below the user input sensor and defining an upper surface and a lower surface;
- a haptic reference electrode group disposed on the upper surface;
- a haptic drive electrode group disposed on the lower surface and configured to apply a voltage across the piezoelectric body to generate haptic feedback through the user input sensor and the transparent cover.
4 more elements
A cover assembly for an electronic device, comprising:
- a transparent cover layer;
- an electrostatic output layer below the transparent cover layer configured to receive a voltage to capacitively couple to a user touching the transparent cover layer;
- a piezoelectric body below the transparent cover layer and the electrostatic output layer and defining an upper surface and a lower surface;
- a first electrode group disposed on the upper surface;
- and
- a touch sense electrode group disposed on the lower surface and coupled to a capacitive touch sensor;
- and
- a haptic drive electrode group disposed on the lower surface and arrange interstitially with the touch sense electrode group, the haptic drive electrode group configured to apply a voltage across the piezoelectric body to generate haptic feedback through the cover assembly.
5 more elements
Dependencies are inferred from the claim text.