发明授权
- 专利标题： Capacitive touch pad with adjacent touch pad electric field suppression
- 专利标题（中）： 电容触摸板与相邻的触摸板电场抑制
-
申请号： US12731510申请日： 2010-03-25
-
公开(公告)号： US09323399B2公开(公告)日： 2016-04-26
- 发明人: Bryce T. Osoinach , Lawrence T. Roshak
- 申请人： Bryce T. Osoinach , Lawrence T. Roshak
- 申请人地址： US TX Austin
- 专利权人： FREESCALE SEMICONDUCTOR, INC.
- 当前专利权人： FREESCALE SEMICONDUCTOR, INC.
- 当前专利权人地址： US TX Austin
- 代理商 Sherry W. Schumm
- 主分类号： G06F3/041
- IPC分类号： G06F3/041 ; G06F3/044
摘要：
A capacitive touch pad includes an electrode board, a plurality of capacitive touch sensor pads, and a cover. The electrode board has touch sensor circuitry formed thereon. The plurality of capacitive touch sensor pads is formed in an array over the touch pad circuitry of the printed circuit board. The plurality of capacitive touch sensor pads is spaced apart by a predetermined distance to form spaces between the pads of the plurality of capacitive touch sensor pads. The cover is positioned over and covering substantially all of the plurality of capacitive touch sensor pads. The cover has a first cavity with a first depth, where the first cavity is shaped to form an air gap between the pads of the plurality of capacitive touch sensor pads to dampen capacitive coupling between adjacent touch pads.
公开/授权文献
信息查询
