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Electrostatic-capacitance-type coordinate input device

  • US 7,737,952 B2
  • Filed: 07/14/2003
  • Issued: 06/15/2010
  • Est. Priority Date: 07/16/2002
  • Status: Active Grant
First Claim
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1. An input device comprising:

  • an electrostatic-capacitance-type input sensor including a flexible substrate;

    a plurality of X electrodes that are formed on one surface of the flexible substrate and that are disposed on an insulating layer and a plurality of Y electrodes that are disposed on the insulating layer; and

    an extension section that is extended from the flexible substrate; and

    lead wiring of the X electrodes and the Y electrodes bundled in the extension section and connected to a non-flexible circuit substrate, wherein the Y electrodes are connected to the lead wiring via a through-hole part provided on the insulating layer,wherein a detection electrode S comprising two comb-shaped electrodes is disposed on a surface of the insulating layer, each electrode of the comb-shaped electrodes is disposed alternately with respect to the Y electrodes, the front ends of the combs are disposed opposite left to right, the comb-shaped electrodes are clustered as one electrode in the center in the Y direction, and these extend up to the predetermined through holes,wherein a protrusion dimension of a portion of the insulating layer which overlaps the extension section is shorter than a protrusion dimension of the extension section such that the insulating layer does not overlap an end portion of the lead wiring of the X and Y electrodes bundled in the extension section, the extension section having a plurality of extension holes, andwherein the X and Y electrodes are connected to the non-flexible circuit substrate provided on one surface of the extension section, and the other surface of the flexible substrate of the electrostatic-capacitance-type input sensor is bonded to the reverse surface of a curved portion of a support plate, and the other surface of the flexible substrate of the extension section is bonded to a flattened portion continuously disposed from the curved portion so that an input operation is conducted by performing a contact operation along the obverse surface of the curve portion without viewing the electrostatic-capacitance type input sensor and the circuit substrate from an outer surface.

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