公开(公告)号：US11972070B1

公开(公告)日：2024-04-30

申请号：US17933068

申请日：2022-09-16

Applicant: Apple Inc.

Inventor： William Paul ,  Christoph H. Krah ,  Stanley B. Wang ,  Yongjie Jiang

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/04164

Abstract: Mitigation techniques can be used to reduce noise generated by wireless communication circuitry (e.g., near-field communication circuitry) in an electronic device including a display, touch, and wireless communication circuitry. In some examples, a touch screen can have a backplane including a mesh of routing traces connected to an array of chiplets. In some examples, the chiplets can repeat signals to prevent the accumulation of noise induced by an NFC coil. In some examples, the ratio between vertical and horizontal resistances of routing traces can be configured to mitigate noise induced by the coil. In some examples, the routing traces of the mesh can be configured to share a common geometric centroid. In some examples, a plurality of routing traces can be routed in a twisted pair configuration. In some examples, the routing traces and chiplets can be routed to minimize traversal through regions of relatively high electromagnetic field.