公开(公告)号：US20210124460A1

公开(公告)日：2021-04-29

申请号：US17141658

申请日：2021-01-05

Applicant: Apple Inc.

Inventor： Daniel J. Bechstein ,  Collin R. Petty ,  Martin P. Grunthaner ,  Andrew W. Joyce ,  John R. Matthews ,  Pavan O. Gupta ,  Albert Lin

IPC: G06F3/044

Abstract: A compliant material, such as a conductive foam, is positioned in the dielectric or capacitive gap between drive and sense electrodes and/or other conductive elements of a capacitive and/or other force sensor, such as a TFT or other display element and a sensor assembly. The compliant material prevents damage by preventing and/or cushioning contact. The compliant material may be conductive. By being conductive and being positioned between the electrodes while still being separated from one or more of the electrodes, the compliant material also shortens the effective electrical distance between the electrodes. As a result, the force sensor may be more sensitive than would otherwise be possible while being less vulnerable to damage.

公开(公告)号：US11275475B2

公开(公告)日：2022-03-15

申请号：US17141658

申请日：2021-01-05

Applicant: Apple Inc.

Inventor： Daniel J. Bechstein ,  Collin R. Petty ,  Martin P. Grunthaner ,  Andrew W. Joyce ,  John R. Matthews ,  Pavan O. Gupta ,  Albert Lin

IPC: G06F3/044

Abstract: A compliant material, such as a conductive foam, is positioned in the dielectric or capacitive gap between drive and sense electrodes and/or other conductive elements of a capacitive and/or other force sensor, such as a TFT or other display element and a sensor assembly. The compliant material prevents damage by preventing and/or cushioning contact. The compliant material may be conductive. By being conductive and being positioned between the electrodes while still being separated from one or more of the electrodes, the compliant material also shortens the effective electrical distance between the electrodes. As a result, the force sensor may be more sensitive than would otherwise be possible while being less vulnerable to damage.

公开(公告)号：US10921943B2

公开(公告)日：2021-02-16

申请号：US16399958

申请日：2019-04-30

Applicant: Apple Inc.

Inventor： Daniel J. Bechstein ,  Collin R. Petty ,  Martin P. Grunthaner ,  Andrew W. Joyce ,  John R. Matthews ,  Pavan O. Gupta ,  Albert Lin

IPC: G06F3/044

Abstract: A compliant material, such as a conductive foam, is positioned in the dielectric or capacitive gap between drive and sense electrodes and/or other conductive elements of a capacitive and/or other force sensor, such as a TFT or other display element and a sensor assembly. The compliant material prevents damage by preventing and/or cushioning contact. The compliant material may be conductive. By being conductive and being positioned between the electrodes while still being separated from one or more of the electrodes, the compliant material also shortens the effective electrical distance between the electrodes. As a result, the force sensor may be more sensitive than would otherwise be possible while being less vulnerable to damage.

公开(公告)号：US20200348795A1

公开(公告)日：2020-11-05

申请号：US16399958

申请日：2019-04-30

Applicant: Apple Inc.

Inventor： Daniel J. Bechstein ,  Collin R. Petty ,  Martin P. Grunthaner ,  Andrew W. Joyce ,  John R. Matthews ,  Pavan O. Gupta ,  Albert Lin

IPC: G06F3/044

Abstract: A compliant material, such as a conductive foam, is positioned in the dielectric or capacitive gap between drive and sense electrodes and/or other conductive elements of a capacitive and/or other force sensor, such as a TFT or other display element and a sensor assembly. The compliant material prevents damage by preventing and/or cushioning contact. The compliant material may be conductive. By being conductive and being positioned between the electrodes while still being separated from one or more of the electrodes, the compliant material also shortens the effective electrical distance between the electrodes. As a result, the force sensor may be more sensitive than would otherwise be possible while being less vulnerable to damage.