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Patterned conductive ink touch panel

  • US 4,625,075 A
  • Filed: 09/25/1984
  • Issued: 11/25/1986
  • Est. Priority Date: 09/25/1984
  • Status: Expired due to Term
First Claim
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1. An element for use in a touch panel which generates signals representing the input positions applied thereto, the element comprising:

  • (a) a flexible planar or curved member having a layer of conductive material coated on one surface thereof;

    (b) a first array of conductive segments formed along an edge of the flexible planar or curved member and in contact with the conductive material;

    (c) a conductive member comprising a first portion which is adjacent to the array of conductive segments and a second portion which includes a terminating end portion, the terminating end portion allowing connection of the touch panel to external means; and

    (d) separate connecting conductive members for connecting certain of the conductive segments of the first array to the first portion of the conductive member, the connecting members being patterned such that the total resistance from each connected segment to the terminating end portion is substantially the same, the resistance of at least two of the connecting conductive members being different.

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