Electrical haptic output array
First Claim
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1. A haptic output device, comprising:
- a cover layer having an exterior surface and an interior surface;
a display layer coupled to the interior surface;
a touch sensing layer coupled to the display layer;
multiple capacitors that each include a pair of transparent electrodes disposed on the exterior surface and connected to a voltage source via conductive material that extends across and off of the exterior surface; and
control circuitry coupled to the multiple capacitors operable to independently charge each of the multiple capacitors using the voltage source;
wherein a touch of a body on the pair of transparent electrodes of a respective capacitor of one of the multiple capacitors conductively provides a haptic output by discharging the respective capacitor to create a current while the respective capacitor is electrically disconnected from the voltage source.
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Abstract
An electronic device that is operable to provide electrical haptic output includes a touch surface and multiple haptic cells disposed on the touch surface. The multiple haptic cells include capacitors that are operable to store charges independently of each other and independently provide haptic output when touched by a body by discharging the stored charge to create a current. In this way, a wide variety of dynamically configurable haptic outputs can be provided without moving parts and without consuming the space and/or power used for haptic actuators that vibrate and/or otherwise move a mass.
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Citations
20 Claims
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1. A haptic output device, comprising:
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a cover layer having an exterior surface and an interior surface; a display layer coupled to the interior surface; a touch sensing layer coupled to the display layer; multiple capacitors that each include a pair of transparent electrodes disposed on the exterior surface and connected to a voltage source via conductive material that extends across and off of the exterior surface; and control circuitry coupled to the multiple capacitors operable to independently charge each of the multiple capacitors using the voltage source; wherein a touch of a body on the pair of transparent electrodes of a respective capacitor of one of the multiple capacitors conductively provides a haptic output by discharging the respective capacitor to create a current while the respective capacitor is electrically disconnected from the voltage source. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A haptic output device, comprising:
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a touch surface of a display; multiple haptic cells that each include a pair of conductive materials disposed on an exterior of the touch surface and connected to a voltage source via a conductor that extends across and off of the exterior of the touch surface; and switching circuitry coupled to the multiple haptic cells and the voltage source operable to independently store charge at each of the multiple haptic cells using the voltage source; wherein each of the multiple haptic cells is operable to conductively provide a haptic output by discharging the stored charge to create a current when the pair of conductive materials is touched by a body while the pair of conductive materials is disconnected from the voltage source. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A haptic output device, comprising:
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a touch surface having an exterior surface and an interior surface; a display positioned under the interior surface of the touch surface; multiple pairs of electrodes disposed on the exterior surface and connected to a voltage source via conductive material that extends across and off of the exterior surface; and circuitry coupled to the multiple pairs of electrodes operable to independently store charge at each of the multiple pairs of electrodes using the voltage source; wherein a touch of a body on a respective one of the multiple pairs of electrodes conductively produces a current by discharging the stored charge while the respective one of the multiple pairs of electrodes is electrically disconnected from the voltage source. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification