Invention Grant
- Patent Title: Capacitive sensing using a matrix electrode pattern
- Patent Title (中): 使用矩阵电极图案的电容感测
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Application No.: US14137692Application Date: 2013-12-20
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Publication No.: US09552089B2Publication Date: 2017-01-24
- Inventor: Jeffrey Lukanc , Stephen L. Morein , Christopher A. Ludden , Greg P. Semeraro , Joseph Kurth Reynolds , Petr Shepelev , Thomas Mackin
- Applicant: Synaptics Incorporated
- Applicant Address: US CA San Jose
- Assignee: SYNAPTICS INCORPORATED
- Current Assignee: SYNAPTICS INCORPORATED
- Current Assignee Address: US CA San Jose
- Agency: Patterson + Sheridan, LLP
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/041 ; G02F1/1333

Abstract:
An electrode matrix that is used for capacitive sensing may be integrated into a display panel of an input device. In one embodiment, source drivers may be mounted on the display panel which drive the display signals and capacitive sensing signals into the display panel. In one embodiment, the capacitive sensing signals may be routed on traces or lines that are interleaved on the same layer as the source lines used for setting a voltage on the pixels in the display panel during display updating. Using the interleaved traces, the source drivers may drive the capacitive sensing signals in parallel to a plurality of the electrodes in the matrix in a predefined pattern that spans one or more sensing cycles.
Public/Granted literature
- US20150042600A1 CAPACITIVE SENSING USING A MATRIX ELECTRODE PATTERN Public/Granted day:2015-02-12
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