Color-changing and multi-colored electroluminescent cable

  • US 6,957,001 B2
  • Filed: 01/29/2004
  • Issued: 10/18/2005
  • Est. Priority Date: 01/29/2003
  • Status: Expired due to Fees
First Claim
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1. A color-changing and multi-colored electroluminescent cable, comprising:

  • a core wire made of soft metal or polymer as the central axis;

    a group of electroluminescent filaments consisting of a plurality of electroluminescent filaments of different colors which are insulated from each other and helically wound on the outer side of the axis;

    a transparent and flexible polymer casing tube disposed on an outer side of the group of electroluminescent filaments to form a flexible light emitting cable; and

    wherein each electroluminescent filament of said plurality of electroluminescent filaments of said group of electroluminescent filaments comprises;

    a metal conductive wire as a core wire and a first electrode;

    a medium insulating layer, which is made of an insulating mixture with improved density, coated on the core wire;

    a light emitting layer, which is made of a light-emitting mixture with improved density, coated on the medium insulating layer;

    a conductive layer, which is made of a semi-transparent, semi-solid viscous conductive polymer containing Au and methyl methacrylate, coated on the light emitting layer;

    one or more transmission conductive wires wound at interval on the conductive layer and led out as a second electrode;

    a color polymer casing tube disposed on the transmission conductive wires and the conductive layer.

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