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TOUCH PANEL CONTROLLER, TOUCH PANEL SYSTEM AND ELECTRONIC EQUIPMENT

  • US 20150227259A1
  • Filed: 05/21/2013
  • Published: 08/13/2015
  • Est. Priority Date: 06/29/2012
  • Status: Abandoned Application
First Claim
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1. A touch panel controller for detecting a touched position on a screen by estimating or detecting a capacitance value after driving a plurality of drive lines of a touch sensor panel and amplifying the capacitance value of electrostatic capacitance between sense lines and the drive lines with an amplifier, comprising, between an input end of the amplifier and sense line,at least two switching means connected in series, anda predetermined voltage applying means for applying a predetermined voltage to a node between the two switching means when the two switching means are in an off state.

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