• 专利标题:   Capacitive touch sensor used as e.g. touchpad, has first conductive material which forms linear pattern and includes metal, and second and third conductive materials which comprise graphene sheets.
  • 专利号:   US2016313194-A1, US10067008-B2
  • 发明人:   SCHEFFER D F, BROOKS L, BOEHMCKE P J, HUDSPETH M A
  • 专利权人:   VORBECK MATERIALS CORP, VORBECK MATERIALS CORP
  • 国际专利分类:   G01L001/14, G06F003/041, G06F003/044, H01G013/00
  • 专利详细信息:   US2016313194-A1 27 Oct 2016 G01L-001/14 201673 Pages: 11 English
  • 申请详细信息:   US2016313194-A1 US136546 22 Apr 2016
  • 优先权号:   US151221P, US136546

▎ 摘  要

NOVELTY - The touch sensor has non-porous insulating substrate (110), first and second conductive materials (120,130) partially in communication with first side (101) of substrate and in communication with each other, and third conductive material (140) partially in communication with second side (102) of substrate. The first conductive material forms linear pattern and includes metal. The second conductive material and/or third conductive material comprise graphene sheets. The conductive materials are formed by printing. USE - Capacitive touch sensor, such as graphene-based capacitive sensor, used as touchpad, or input device of computer. ADVANTAGE - Capacitive sensors can sense the position of a user's finger, or fingers, on its surface to provide a platform for interactive input. A controller can determine the location of the touch indirectly from the change in the capacitance as measured from the four corners of the insulated sensor. The capacitive sensors can utilize projected capacitance to determine the location of a finger, or fingers, and can also function via projected capacitance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a touch sensor fabrication method. DESCRIPTION OF DRAWING(S) - The drawing shows the sectional view of the capacitive sensor assembly stack. First side (101) Second side (102) Non-porous insulating substrate (110) First and second conductive materials (120,130) Third conductive material (140)