发明名称 |
MATRIX SENSOR FOR IMAGE TOUCH SENSING |
摘要 |
Embodiments described herein include an input device, a display device having a capacitive sensing device, a processing system and a method for detecting presence of an input object using a capacitive sensing device. In one embodiment, an input device includes a plurality of sensor electrodes arranged in a planar matrix array. Each sensor electrode is coupled to unique routing trace and has an identical geometric plan form that is symmetrical about a center of area of the sensor electrode. The geometric plan form of each sensor electrode includes core and a plurality of protrusions extending outward from the core. The protrusions are configured to overlap with protrusions extending outward from each adjacent sensor electrode of the matrix array. |
申请公布号 |
US2015293642(A1) |
申请公布日期 |
2015.10.15 |
申请号 |
US201514750721 |
申请日期 |
2015.06.25 |
申请人 |
SYNAPTICS INCORPORATED |
发明人 |
SHEPELEV Petr;LUDDEN Christopher A.;LUKANC Jeffrey;MOREIN Stephen L.;SEMERARO Greg P.;REYNOLDS Joseph Kurth |
分类号 |
G06F3/041;G06F3/044 |
主分类号 |
G06F3/041 |
代理机构 |
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代理人 |
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主权项 |
1. A processing system for an input device, the processing system comprising;
a sensor module, comprising sensor circuitry configured to couple to a plurality of sensor electrodes, the sensor module is configured to drive a first sensor electrode of the plurality sensor electrodes to acquire first changes of absolute capacitance during a first non-display update period of a display frame and a second sensor electrode of the plurality of sensor electrodes to acquire second changes of absolute capacitance during a second non-display update period of the display frame, wherein the first non-display update period and the second non-display update period occur between different pairs of display line update periods of the display frame and are at least as long as a display line update period the display frame. |
地址 |
San Jose CA US |