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Digital display device

  • US 3,924,227 A
  • Filed: 11/07/1973
  • Issued: 12/02/1975
  • Est. Priority Date: 11/13/1972
  • Status: Expired due to Term
First Claim
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1. A digital display device for displaying a numeric desired figure in any desired color, comprising in combination:

  • an electronic digital display device including an arrangement of seven segments in the conventional pattern of digital display devices, comprising in combination seven groups of wires, each group comprising three parallel wires spaced apart at a small distance from each other;

    a color filter having three color sections being provided so that in front of each of the three wires of each group there is located a color section of a different color;

    a frosted screen being provided in front of said color filter;

    a mask defining narrow transparent strips coinciding with the arrangement of said seven segments, on or in the vicinity of said frosted screen;

    actuating means being provided for actuating any desired combination of the seven groups and for actuating at least one of the three parallel wires in each group.

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