公开(公告)号：US20170357325A1

公开(公告)日：2017-12-14

申请号：US15622017

申请日：2017-06-13

Applicant: Apple Inc.

Inventor： Jui-Ming Yang ,  Nathan K. Gupta ,  Po-Jui Chen ,  Teera Songatikamas ,  Kyle J. Campiotti ,  Robert L. Sheridan ,  Xiaonan Wen ,  Xiaofan Niu ,  James E. Pedder

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06F3/016 ,  G06F3/0412 ,  G06F3/0414 ,  G06F3/044

Abstract: An electronic device configured to provide localized haptic feedback to a user on one or more regions or sections of a surface of the electronic device. A support structure is positioned below the surface, and one or more haptic actuators are coupled to the support structure. In some examples, the support structure is shaped or configured to amplify a response to a haptic actuator. When a haptic actuator is actuated, the support structure deflects, which causes the surface to bend or deflect at a location that substantially corresponds to the location of the activated haptic actuator. In some examples, prior to providing haptic feedback, at least one haptic actuator is electrically pre-stressed to place the haptic actuator(s) in a pre-stressed state. When haptic feedback is to be provided, at least one haptic actuator transitions from the pre-stressed state to a haptic output state to produce one or more deflections in the surface. In other examples, a haptic structure incorporates a piezoelectric element that is shaped to reduce the overall cost of the haptic structure while still providing high actuation performance.