Invention Grant
- Patent Title: Back of cover touch sensors
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Application No.: US15691283Application Date: 2017-08-30
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Publication No.: US10444918B2Publication Date: 2019-10-15
- Inventor: Wencong Zhu , Albert Lin , Alexander A. Penn , Ashray Vinayak Gogte , Chun-Hao Tung , Hao Zhang , Hui Zhou , John Z. Zhong , Steven P. Hotelling , Sudip Mondal , Sumant Ranganathan , Sunggu Kang , Ramachandran Chundru , Viswa B. Pilla
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kubota & Basol LLP
- Main IPC: G06F3/044
- IPC: G06F3/044

Abstract:
Touch sensor configurations for reducing electrostatic discharge events in the border area of a touch sensor panel is disclosed. Touch sensors (e.g., electrodes formed on the cover material and/or the opaque mask) can be susceptible to certain events such as arcing and discharge/joule heating, which may negatively affect touch sensor performance. Examples of the disclosure can include increasing the trace width, spacing, and/or thickness in the border area relative to the trace width, spacing, and/or thickness in the visible/active area along one or more sides of the touch sensor panel. In some examples, touch electrodes can be located exclusively in the visible/active areas along one or more sides of the touch sensor panel, while dummy sections can be included in both the border and visible/active areas. Additionally or alternatively, one or more gaps between adjacent touch electrodes in the border area or serpentine routing can be included.
Public/Granted literature
- US20180067584A1 BACK OF COVER TOUCH SENSORS Public/Granted day:2018-03-08
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