Invention Grant
- Patent Title: Double-sided touch-sensitive panel with shield and drive combined layer
- Patent Title (中): 双面触摸屏,带屏蔽和驱动组合层
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Application No.: US11650182Application Date: 2007-01-03
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Publication No.: US07920129B2Publication Date: 2011-04-05
- Inventor: Steve Porter Hotelling , Brian Richards Land
- Applicant: Steve Porter Hotelling , Brian Richards Land
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Morrison & Foerster LLP
- Main IPC: G09G5/00
- IPC: G09G5/00

Abstract:
A multi-touch capacitive touch sensor panel can be created using a substrate with column and row traces formed on either side of the substrate. To shield the column (sense) traces from the effects of capacitive coupling from a modulated Vcom layer in an adjacent liquid crystal display (LCD) or any source of capacitive coupling, the row traces can be widened to shield the column traces, and the row traces can be placed closer to the LCD. In particular, the rows can be widened so that there is spacing of about 30 microns between adjacent row traces. In this manner, the row traces can serve the dual functions of driving the touch sensor panel, and also the function of shielding the more sensitive column (sense) traces from the effects of capacitive coupling.
Public/Granted literature
- US20080158183A1 Double-sided touch-sensitive panel with shield and drive combined layer Public/Granted day:2008-07-03
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