Invention Grant
US08643624B2 Capacitive sensing using a segmented common voltage electrode of a display
有权
使用显示屏的分段公共电压电极进行电容感测
- Patent Title: Capacitive sensing using a segmented common voltage electrode of a display
- Patent Title (中): 使用显示屏的分段公共电压电极进行电容感测
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Application No.: US12726322Application Date: 2010-03-17
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Publication No.: US08643624B2Publication Date: 2014-02-04
- Inventor: Shawn P. Day , Bob Lee Mackey , Joseph Kurth Reynolds
- Applicant: Shawn P. Day , Bob Lee Mackey , Joseph Kurth Reynolds
- Applicant Address: US CA San Jose
- Assignee: Synaptics Incorporated
- Current Assignee: Synaptics Incorporated
- Current Assignee Address: US CA San Jose
- Main IPC: G06F3/045
- IPC: G06F3/045

Abstract:
An integrated display and touch sensor device comprises a plurality of display pixels and a processing system communicatively coupled with a plurality of common voltage electrode segments and with a plurality of receiver sensor electrodes. The plurality of display pixels is configured for displaying information on the display. The processing system is configured for driving a voltage transition onto a common voltage electrode segment of the plurality of common voltage electrode segments. The voltage transition provides a common voltage for refreshing at least one display pixel of the plurality of display pixels, and generates a first electrical signal on at least one receiver sensor electrode of the plurality of receiver sensor electrodes. The processing system is also configured for acquiring a first measurement of a capacitive coupling between the driven common voltage electrode segment and the at least one receiver sensor electrode by measuring the first electrical signal.
Public/Granted literature
- US20100238134A1 CAPACITIVE SENSING USING A SEGMENTED COMMON VOLTAGE ELECTRODE OF A DISPLAY Public/Granted day:2010-09-23
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