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CAPACITIVE TOUCH DEVICE WITH HIGH SENSITIVITY AND OPERATING METHOD THEREOF

  • US 20160282991A1
  • Filed: 03/25/2016
  • Published: 09/29/2016
  • Est. Priority Date: 03/26/2015
  • Status: Abandoned Application
First Claim
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1. A capacitive touch device comprising:

  • a touch panel comprising a detection electrode configured to form a self-capacitor; and

    a control chip comprising a detection capacitor, an input resistor, an amplifying circuit and an emulation circuit, whereinthe detection capacitor, the self-capacitor, the input resistor and the amplifying circuit are configured to form a first filter circuit,the emulation circuit is configured to form a second filter circuit, anda frequency response of the second filter circuit is determined according to a frequency response of the first filter circuit.

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