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Electronic shelf label

  • US 20030053014A1
  • Filed: 09/18/2002
  • Published: 03/20/2003
  • Est. Priority Date: 09/19/2001
  • Status: Active Grant
First Claim
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1. An electronic shelf label comprising a liquid crystal display element comprised of a liquid crystal layer and at least two electrodes characterized in that at least two chiral nematic liquid crystal layers are arranged, in which each chiral nematic liquid crystal layer is able to develop at least two different stable optical states without applying voltage to said liquid crystal layer, and at least three colors per a pixel or a segment of said liquid crystal display element are obtainable on display.

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