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CAPACITANCE SENSING APPARATUS AND TOUCH SCREEN APPARATUS

  • US 20140035862A1
  • Filed: 11/05/2012
  • Published: 02/06/2014
  • Est. Priority Date: 07/31/2012
  • Status: Active Grant
First Claim
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1. A capacitance sensing apparatus, comprising:

  • a driving circuit unit applying a driving signal having a predetermined cycle to a first capacitor; and

    a sensing circuit unit sensing a change in capacitance generated in the first capacitor based on the driving signal,wherein a portion of a plurality of switches included in the sensing circuit unit operate at a first cycle, the same as the cycle of the driving signal, and remaining switches among the plurality of switches operate at a second cycle, different from the first cycle.

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