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Multilayered dispersed thermochromic liquid crystal

  • US 5,805,245 A
  • Filed: 09/29/1997
  • Issued: 09/08/1998
  • Est. Priority Date: 09/19/1995
  • Status: Expired due to Term
First Claim
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1. A stacked thermochromic display system comprising a substrate and a stack of at least two thermochromic displays wherein each display comprises:

  • (i) a thermochromic film layer; and

    (ii) a transparent barrier overlaying the thermochromic film layer;

    wherein the displays are stacked upon each other defining upper displays and lower displays, and;

    (iii) wherein the thermochromic film layer of each display is selected to have different temperature sensitivity ranges with the proviso that the transparent barriers are not configured in such a manner as to permit visual observation of the stacked nature of the displays.

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