发明授权
- 专利标题: Touch sensor panels with reduced static capacitance
- 专利标题(中): 触摸传感器面板,减少静电容量
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申请号: US12545741申请日: 2009-08-21
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公开(公告)号: US08507811B2公开(公告)日: 2013-08-13
- 发明人: Steven Porter Hotelling , Marduke Yousefpor
- 申请人: Steven Porter Hotelling , Marduke Yousefpor
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 代理机构: Morrison & Foerster LLP
- 主分类号: G08C21/00
- IPC分类号: G08C21/00
摘要:
Capacitive touch panels may include a plurality of positive voltage lines that are driven at a first phase. These positive voltage lines may be used to provide the drive capacitance signal sensed by one or more sense regions. The touch panels may also include a plurality of negative phase voltage lines that are driven at a phase that is different than the first phase. Both the positive and negative voltage lines may cross-under one or more sense regions. The negative phase voltage lines are able to counter act and reduce the static capacitance in the sense regions.
公开/授权文献
- US20100193257A1 TOUCH SENSOR PANELS WITH REDUCED STATIC CAPACITANCE 公开/授权日:2010-08-05
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