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Coordinate input device detecting touch on board associated with liquid crystal display, and electronic device therefor

  • US 20020135570A1
  • Filed: 03/15/2002
  • Published: 09/26/2002
  • Est. Priority Date: 03/23/2001
  • Status: Active Grant
First Claim
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1. A coordinate input device for inputting coordinates on a screen of a display, comprising:

  • a board providing a coordinate input surface; and

    at least one vibration detector that is arranged on the board or in a periphery of the coordinate input surface to detect vibration that occurs on the coordinate input surface of the board.

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