Record display medium and use thereof

Details Record display medium and use thereof Record display medium and use thereof

1997-12-18

2000-05-09

Kelly, C. H.

Compositions

Liquid crystal compositions

Containing pleochroic dye

25229901, 25229966, 25229962, C09K 1900, C09K 1912, C09K 1932

Patent

active

060599936

ABSTRACT:
A record display medium that can display a high contrast image and is less likely to cause a lowering of contrast or disappearance of the displayed image even in low temperature and high temperature regions. The record display medium has a conductive substrate and a liquid crystal/polymer composite film provided on the conductive substrate. The liquid crystal/polymer composite film includes a smectic liquid and a dichroic dye dispersed in a polymer matrix. The liquid crystal contains a liquid crystal mixture having a specific composition and the dichroic dye is a black dichroic dye formed of a mixture of dichroic azo dyes.

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