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Electrostatic detection apparatus and method, and coordinate detection program

  • US 20050275415A1
  • Filed: 05/23/2005
  • Published: 12/15/2005
  • Est. Priority Date: 05/25/2004
  • Status: Active Grant
First Claim
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1. An electrostatic detection apparatus comprising:

  • a sensing area for detecting that a body to be detected contacts or approaches the sensing area;

    a plurality of sensor electrodes wired in the sensing area;

    a routing-purpose extension line for connecting a section between individual sensor electrodes and an external circuit provided outside the sensing area; and

    an extension area that is provided in the vicinity of the sensing area and in which the extension lines are arranged densely, wherein electrostatic protection means for suppressing the change of an electrostatic capacitance formed between the body to be detected and the extension line when the body to be detected contacts or approaches the extension area is provided in the extension area.

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