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US 2020/0401228 A1Published application
Electronic Device Having a Piezoelectric Body for Friction Haptics
AssigneeApple Inc.
InventorsXiaonan Wen, James E. Pedder
Life of this patent
Estimating the term…
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
1-5. (canceled)
An electronic device, comprising:
- a housing at least partially enclosing an interior volume;
- and
- a cover assembly coupled to the housing, the cover assembly comprising:
- an outer layer;
- an electrically conductive layer below the outer layer;
- a dielectric layer coupled to the electrically conductive layer;
- a touch sensor below the dielectric layer and comprising:
- a first touch electrode;
- an insulating layer;
- and
- a second touch electrode;
- and
- a substrate coupled to the touch sensor and supporting the cover assembly.
10 more elements
An electronic device, comprising:
- a housing at least partially enclosing an interior volume;
- a display disposed in the interior volume;
- a touch sensing system disposed below the display within the interior volume;
- a cover assembly positioned over the display and coupled to the housing, the cover assembly comprising:
- a passivation layer defining an input surface to receive a touch input from a user;
- a transparent electrically conductive layer within the interior volume and coupled to the passivation layer;
- a first insulating layer within the interior volume and coupled to the transparent electrically conductive layer;
- a first touch sensing layer conductively coupled to the touch sensing system and separated from the transparent electrically conductive layer by the first insulating layer;
- a second insulating layer within the interior volume and coupled to the first touch sensing layer;
- a second touch sensing layer conductively coupled to the touch sensing system and separated from the first touch sensing layer by the second insulating layer;
- and
- a cover sheet layer disposed over the display and coupled to the second touch sensing layer.
9 more elements
A cover assembly to be positioned over an electronic device display and configured to provide both haptic output and touch input sensing, the cover assembly comprising:
- an optically transparent outer layer;
- an electrostatic drive layer below the optically transparent outer layer;
- a touch sensor below and conductively decoupled from the electrostatic drive layer and comprising:
- a drive electrode capacitively coupled to the electrostatic drive layer;
- an insulating layer comprising a piezoelectric material;
- and
- a sense electrode capacitively coupled to the drive electrode and defining therewith a capacitive touch sensor;
- and
- a rigid and optically transparent substrate adhered to, and positioned below, the touch sensor.
6 more elements
Dependencies are inferred from the claim text.