发明授权
US4290052A Capacitive touch entry apparatus having high degree of personal safety
失效
具有高度人身安全性的电容式触摸输入装置
- 专利标题: Capacitive touch entry apparatus having high degree of personal safety
- 专利标题(中): 具有高度人身安全性的电容式触摸输入装置
-
申请号: US88287申请日: 1979-10-26
-
公开(公告)号: US4290052A公开(公告)日: 1981-09-15
- 发明人: Charles W. Eichelberger , Robert J. Wojnarowski
- 申请人: Charles W. Eichelberger , Robert J. Wojnarowski
- 申请人地址: NY Schenectady
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: NY Schenectady
- 主分类号: G06F3/033
- IPC分类号: G06F3/033 ; G06F3/044 ; G06K9/00 ; H03K17/96 ; H05K1/16 ; H05K3/28 ; G06F3/02 ; H01G7/00
摘要:
A capacitive touch entry structure utilizes an array of at least one capacitive touch sensor fabricated upon a double-sided printed circuit board adhesively mounted upon a surface of a transparent insulative substrate. The substrate has sufficient thickness to safely insulate user personnel, contacting the substrate surface furthest from an electrode of the capacitive touch sensor, from electrical potentials present adjacent to the panel surface upon which the capacitive touch sensor is fastened. Touch sensor circuitry and interconnections may be advantageously fabricated directly upon the pair of conductive planes, sandwiching an insulative layer therebetween, to form the printed circuit portion of the structure. A conductive guard may also be disposed adjacent to the substrate to shield at least the lead portions of the touch sensors from capacitive effects.
公开/授权文献
信息查询