Capacitive touch panel device with differing drive

专利名称：Capacitive touch panel device with differing

drive pulse widths

发明人：Akihito Akai,Tatsuya Ishii,Kazuo Okado申请号：US14037707申请日：20130926公开号：US09250740B2公开日：20160202

专利附图：

摘要：It becomes possible to use drive pulses having different pulse widths for onekind of drive pulse signal period. Therefore, even if a voltage acting on a crossing part ofdrive and detection electrodes is periodically changed through a stray capacitance

attributed to an external object such as a finger in an undesired manner, the pulse widthof the drive pulse is never fixed with respect to the period, and the periodic buildup of acertain voltage on a detection signal, which would make appreciable noise, is suppressed.Thus, the reduction of detection signals can be suppressed in quantity without switchingthe pulse signal frequency of the drive pulse of a touch panel.

申请人：Synaptics Display Devices GK

地址：Tokyo JP

国籍：JP

代理机构：Miles & Stockbridge P.C.

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